/* =========================================================
   DESIGN SYSTEM & VARIABLES
========================================================= */
:root {
  color-scheme: dark;
  --bg: #080B18;
  --bg-2: #0D1124;

  --card: #11162A;
  --card-2: #151B32;

  --purple: #7C3AED;
  --purple-dark: #6D28D9;
  --violet: #A855F7;
  --lavender: #C084FC;

  --white: #F8FAFC;
  --text: #E2E8F0;
  --muted: #94A3B8;

  --border: rgba(255, 255, 255, 0.08);

  --gradient: linear-gradient(135deg, #7C3AED, #A855F7);
  --container: 1180px;
}

/* =========================================================
   BASE RESET & REUSABLE UTILITIES
========================================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: "Inter", sans-serif;
  background: var(--bg);
  color: var(--white);
  overflow-x: hidden;
  min-height: 100vh;
  color-scheme: dark;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.w-10 {
  width: 2.5rem;
}

.h-10 {
  height: 2.5rem;
}

.app {
  min-height: 100vh;
  background: radial-gradient(
      circle at 50% -10%,
      rgba(124, 58, 237, 0.16),
      transparent 35%
    ),
    var(--bg);
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* =========================================================
   FLASH MESSAGES
========================================================= */
.flash-container {
  width: min(var(--container), calc(100% - 40px));
  margin: 20px auto 0;
}

.flash-alert {
  padding: 14px 20px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 12px;
  backdrop-filter: blur(10px);
}

.flash-success {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34D399;
}

.flash-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #F87171;
}

.flash-dismiss {
  background: transparent;
  border: none;
  color: inherit;
  font-size: 18px;
  line-height: 1;
  opacity: 0.7;
}

.flash-dismiss:hover {
  opacity: 1;
}

/* =========================================================
   NAVBAR
========================================================= */
.navbar {
  height: 78px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(8, 11, 24, 0.88);
  backdrop-filter: blur(16px);
}

.nav-container {
  width: min(var(--container), calc(100% - 40px));
  max-width: 1440px;
  height: 100%;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: "Sora", sans-serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.7px;
  text-decoration: none;
  color: #FFFFFF;
  white-space: nowrap;
  flex-shrink: 0;
}

.logo img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.logo-purple {
  color: var(--lavender);
}

.nav-menu-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  margin-left: 32px;
  min-width: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 1;
  white-space: nowrap;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted, #94a3b8);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s ease;
  padding: 6px 10px;
  border-radius: 8px;
  line-height: 1;
}

.nav-item i {
  font-size: 13px;
  opacity: 0.8;
  transition: all 0.2s ease;
}

.nav-item:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.05);
}

.nav-item:hover i {
  opacity: 1;
  transform: translateY(-1px);
}

.nav-item.active {
  color: #C4B5FD;
  font-weight: 600;
  background: rgba(124, 58, 237, 0.12);
}

.nav-item.active i {
  color: #A855F7;
  opacity: 1;
}

.nav-teacher-portal {
  color: #C4B5FD;
}

.nav-teacher-portal:hover {
  color: #E9D5FF;
}

.nav-admin-panel {
  color: #F472B6;
}

.nav-admin-panel:hover {
  color: #FBCFE8;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  white-space: nowrap;
}

.nav-user-links {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

/* Bell Notification link */
.nav-bell-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--muted, #94a3b8);
  text-decoration: none;
  transition: all 0.2s ease;
}

.nav-bell-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-bell-link i {
  font-size: 15px;
}

.nav-mobile-label {
  display: none;
}

.nav-badge {
  position: absolute;
  top: -6px;
  right: -8px;
  background: #EF4444;
  color: #FFFFFF;
  font-size: 9.5px;
  font-weight: 800;
  min-width: 16px;
  height: 16px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 1;
  border: 1.5px solid #080B18;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  pointer-events: none;
}

/* User Account Dropdown Container */
.nav-user-account {
  position: relative;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

/* Profile Chip Trigger Button */
.nav-profile-chip-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text, #e2e8f0);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s ease;
  line-height: 1;
}

.nav-profile-chip-btn:hover,
.nav-user-account.open .nav-profile-chip-btn {
  background: rgba(124, 58, 237, 0.12);
  border-color: rgba(168, 85, 247, 0.4);
  color: #FFFFFF;
}

.nav-chip-arrow {
  font-size: 10px;
  color: var(--muted, #94a3b8);
  transition: transform 0.2s ease, color 0.2s ease;
  margin-left: 2px;
}

.nav-user-account.open .nav-chip-arrow {
  transform: rotate(180deg);
  color: #FFFFFF;
}

.nav-avatar-img {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid rgba(168, 85, 247, 0.5);
  flex-shrink: 0;
}

.nav-avatar-fallback {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--gradient, linear-gradient(135deg, #7C3AED, #A855F7));
  display: inline-grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  color: #FFFFFF;
  flex-shrink: 0;
}

.nav-user-name {
  font-weight: 600;
  color: #FFFFFF;
  max-width: 90px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Profile Dropdown Menu */
.nav-profile-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 240px;
  background: #0D1124;
  border: 1px solid rgba(168, 85, 247, 0.25);
  border-radius: 16px;
  box-shadow: 0 16px 40px -6px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.05);
  padding: 12px;
  z-index: 1000;
  display: none;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-user-account.open .nav-profile-dropdown {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Dropdown Header */
.nav-dropdown-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 6px 8px 6px;
}

.nav-dropdown-avatar {
  flex-shrink: 0;
}

.nav-dropdown-avatar-img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(168, 85, 247, 0.5);
}

.nav-dropdown-avatar-fallback {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gradient, linear-gradient(135deg, #7C3AED, #A855F7));
  display: inline-grid;
  place-items: center;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
}

.nav-dropdown-user-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}

.nav-dropdown-user-name {
  font-size: 13.5px;
  font-weight: 700;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 155px;
}

.nav-dropdown-user-handle {
  font-size: 11.5px;
  color: var(--muted, #94a3b8);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 155px;
}

.nav-dropdown-role-badge {
  display: inline-block;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 2px 7px;
  border-radius: 6px;
  margin-top: 3px;
  align-self: flex-start;
}

.nav-dropdown-role-badge.role-admin {
  background: rgba(239, 68, 68, 0.2);
  color: #FCA5A5;
  border: 1px solid rgba(239, 68, 68, 0.35);
}

.nav-dropdown-role-badge.role-teacher {
  background: rgba(59, 130, 246, 0.2);
  color: #93C5FD;
  border: 1px solid rgba(59, 130, 246, 0.35);
}

.nav-dropdown-role-badge.role-student {
  background: rgba(124, 58, 237, 0.2);
  color: #D8B4FE;
  border: 1px solid rgba(168, 85, 247, 0.35);
}

/* Dropdown Divider */
.nav-dropdown-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 6px 0;
}

/* Dropdown Items */
.nav-dropdown-items {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  color: #CBD5E1;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s ease;
}

.nav-dropdown-item i {
  font-size: 13px;
  width: 16px;
  text-align: center;
  color: var(--muted, #94a3b8);
  transition: color 0.15s ease;
}

.nav-dropdown-item:hover {
  background: rgba(124, 58, 237, 0.15);
  color: #FFFFFF;
}

.nav-dropdown-item:hover i {
  color: var(--lavender, #C084FC);
}

/* Dropdown Footer & Logout */
.nav-dropdown-footer {
  padding-top: 2px;
}

.nav-dropdown-logout-form {
  display: block;
  margin: 0;
  padding: 0;
}

.nav-dropdown-logout-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.22);
  color: #FCA5A5;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  text-align: left;
}

.nav-dropdown-logout-btn i {
  font-size: 13px;
  width: 16px;
  text-align: center;
}

.nav-dropdown-logout-btn:hover {
  background: rgba(239, 68, 68, 0.22);
  border-color: rgba(239, 68, 68, 0.45);
  color: #FFFFFF;
}

/* Legacy profile chip compatibility */
.nav-profile-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 11px 4px 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
  color: var(--text, #e2e8f0);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.2s ease;
}

/* Unauthenticated buttons */
.nav-login-link,
.login {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted, #94a3b8);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-login-link:hover,
.login:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.05);
}

.nav-button,
.nav-signup-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 17px;
  border-radius: 9px;
  background: var(--gradient);
  font-size: 13px;
  font-weight: 600;
  color: #FFFFFF;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.25);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-button:hover,
.nav-signup-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.35);
  color: #FFFFFF;
}

.mobile-menu {
  display: none;
  background: transparent;
  border: none;
  color: white;
  font-size: 24px;
  padding: 5px 10px;
  min-height: 44px;
  min-width: 44px;
  cursor: pointer;
  border-radius: 8px;
}

/* Compact Desktop Adaptations (1024px to 1279px) */
@media (min-width: 993px) and (max-width: 1279px) {
  .nav-menu-wrapper {
    margin-left: 14px;
  }
  .nav-links {
    gap: 6px;
  }
  .nav-actions {
    gap: 8px;
  }
  .nav-user-links {
    gap: 5px;
  }
  .nav-item {
    font-size: 12px;
    padding: 5px 6px;
    gap: 4px;
  }
  .nav-item i {
    font-size: 11.5px;
  }
  .nav-profile-chip-btn,
  .nav-profile-chip {
    padding: 3px 8px 3px 4px;
    font-size: 12px;
    gap: 5px;
  }
  .nav-user-name {
    max-width: 65px;
  }
  .nav-signup-btn {
    padding: 7px 12px;
    font-size: 12px;
    gap: 5px;
  }
}

/* =========================================================
   HERO SECTION
========================================================= */
.hero {
  position: relative;
  padding: 115px 20px 100px;
  text-align: center;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: auto;
}

.hero-badge,
.section-badge {
  display: inline-flex;
  align-items: center;
  padding: 7px 13px;
  border-radius: 100px;
  background: rgba(124, 58, 237, 0.09);
  border: 1px solid rgba(168, 85, 247, 0.22);
  color: #C4B5FD;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: #A855F7;
  box-shadow: 0 0 10px #A855F7;
}

.hero h1 {
  margin-top: 27px;
  font-family: "Sora", sans-serif;
  font-size: clamp(48px, 7vw, 78px);
  line-height: 1.08;
  letter-spacing: -4px;
  font-weight: 700;
}

.hero-description {
  max-width: 620px;
  margin: 25px auto 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 34px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 20px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  transition: 0.25s;
}

.primary-button {
  background: var(--gradient);
  box-shadow: 0 12px 35px rgba(124, 58, 237, 0.3);
}

.primary-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 45px rgba(124, 58, 237, 0.4);
}

.secondary-button {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.025);
  color: var(--text);
}

.secondary-button:hover {
  background: rgba(255, 255, 255, 0.06);
}

.hero-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 35px;
}

.avatars {
  display: flex;
}

.avatars span {
  width: 29px;
  height: 29px;
  display: grid;
  place-items: center;
  margin-left: -5px;
  border: 2px solid var(--bg);
  border-radius: 50%;
  background: #1F2937;
  color: #CBD5E1;
  font-size: 9px;
  font-weight: 700;
}

.avatars span:first-child {
  margin-left: 0;
}

.stars {
  color: #C084FC;
  font-size: 10px;
  letter-spacing: 2px;
  text-align: left;
}

.hero-trust p {
  margin-top: 2px;
  color: #64748B;
  font-size: 10px;
  text-align: left;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.glow-one {
  width: 350px;
  height: 350px;
  left: 5%;
  top: 25%;
  background: rgba(124, 58, 237, 0.08);
}

.glow-two {
  width: 300px;
  height: 300px;
  right: 5%;
  top: 15%;
  background: rgba(168, 85, 247, 0.07);
}

/* =========================================================
   DASHBOARD MOCKUP
========================================================= */
.dashboard-wrapper {
  position: relative;
  max-width: 1000px;
  margin: 80px auto 0;
}

.dashboard-glow {
  position: absolute;
  inset: 10%;
  background: rgba(124, 58, 237, 0.2);
  filter: blur(90px);
  z-index: 0;
}

.dashboard {
  position: relative;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  background: rgba(13, 17, 36, 0.85);
  backdrop-filter: blur(20px);
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.45);
}

.dashboard-top {
  height: 55px;
  display: flex;
  align-items: center;
  padding: 0 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.fake-window-buttons {
  display: flex;
  gap: 6px;
  width: 120px;
}

.fake-window-buttons span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #334155;
}

.fake-search {
  width: 300px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: #64748B;
  font-size: 10px;
  text-align: left;
}

.fake-search input {
  background: transparent;
  border: none;
  color: #E2E8F0;
  outline: none;
  font-size: 10px;
  width: 100%;
  font-family: inherit;
}

.fake-search input::placeholder {
  color: #64748B;
}

.fake-search button {
  background: none;
  border: none;
  color: #64748B;
  cursor: pointer;
  padding: 0;
  font-size: 11px;
  display: flex;
  align-items: center;
  transition: color 0.2s ease;
}

.fake-search button:hover {
  color: #C084FC;
}

.profile-circle {
  width: 28px;
  height: 28px;
  margin-left: auto;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #7C3AED, #C084FC);
  font-size: 9px;
  font-weight: 700;
  color: #FFFFFF;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.profile-circle:hover {
  transform: scale(1.08);
  box-shadow: 0 0 10px rgba(124, 58, 237, 0.5);
}

.dashboard-body {
  display: flex;
  min-height: 450px;
}

.sidebar {
  width: 190px;
  padding: 25px 13px;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.side-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px 13px;
  margin-bottom: 5px;
  border-radius: 8px;
  color: #64748B;
  font-size: 11px;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.side-item span {
  font-size: 14px;
}

.side-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #E2E8F0;
}

.side-item.active {
  background: rgba(124, 58, 237, 0.14);
  color: #C4B5FD;
}

.dashboard-main {
  flex: 1;
  padding: 30px;
  text-align: left;
}

.dashboard-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.small-label {
  color: #64748B;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 1.4px;
}

.dashboard-heading h3 {
  margin-top: 5px;
  font-family: "Sora", sans-serif;
  font-size: 18px;
}

.upload-button {
  border: none;
  padding: 8px 13px;
  border-radius: 7px;
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(168, 85, 247, 0.2);
  color: #C4B5FD;
  font-size: 10px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: all 0.2s ease;
}

.upload-button:hover {
  background: rgba(124, 58, 237, 0.3);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.mini-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 25px;
}

.mini-stat {
  padding: 15px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
}

.mini-stat span {
  display: block;
  color: #64748B;
  font-size: 9px;
}

.mini-stat strong {
  display: block;
  margin-top: 6px;
  font-family: "Sora", sans-serif;
  font-size: 19px;
}

.preview-title {
  margin-top: 30px;
  font-size: 12px;
  font-weight: 600;
}

.preview-notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 12px;
}

.preview-note {
  padding: 15px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.02);
  text-decoration: none;
  color: inherit;
  display: block;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.preview-note:hover {
  transform: translateY(-2px);
  border-color: rgba(168, 85, 247, 0.25);
  background: rgba(255, 255, 255, 0.04);
}

.note-icon {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  background: rgba(124, 58, 237, 0.14);
  color: #C084FC;
  font-size: 13px;
}

.note-info strong {
  display: block;
  margin-top: 12px;
  font-size: 11px;
}

.note-info span {
  display: block;
  margin-top: 4px;
  color: #64748B;
  font-size: 9px;
}

.note-rating {
  margin-top: 13px;
  color: #C084FC;
  font-size: 9px;
}

/* =========================================================
   STATS SECTION
========================================================= */
.stats-section {
  padding: 30px 20px 80px;
}

.stats-container {
  width: min(var(--container), calc(100% - 40px));
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(13, 17, 36, 0.4);
  border-radius: 16px;
  backdrop-filter: blur(8px);
}

.stat {
  padding: 32px 20px;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.stat:last-child {
  border-right: none;
}

.stat strong,
.stat .stat-number {
  display: block;
  font-family: "Sora", sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.5px;
  line-height: 1.15;
}

.stat span,
.stat .stat-label {
  display: block;
  margin-top: 8px;
  color: var(--muted, #94A3B8);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.2px;
}

/* =========================================================
   FEATURES SECTION
========================================================= */
.features-section {
  width: min(var(--container), calc(100% - 40px));
  margin: auto;
  padding: 80px 0 120px;
}

.section-heading {
  max-width: 650px;
  margin: auto;
  text-align: center;
}

.section-heading h2,
.explore-content h2,
.cta-content h2 {
  margin-top: 22px;
  font-family: "Sora", sans-serif;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.15;
  letter-spacing: -2px;
}

.section-heading p,
.explore-content p,
.cta-content p {
  margin-top: 17px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 55px;
}

.feature-card {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.035),
    rgba(255, 255, 255, 0.015)
  );
  transition: 0.3s;
}

.feature-card:hover {
  transform: scale(1.03);
  border-color: rgba(168, 85, 247, 0.25);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: rgba(124, 58, 237, 0.13);
  color: #C084FC;
  font-size: 19px;
}

.feature-card h3 {
  margin-top: 22px;
  font-family: "Sora", sans-serif;
  font-size: 17px;
}

.feature-card p {
  margin-top: 11px;
  color: #64748B;
  line-height: 1.7;
  font-size: 12px;
}

.feature-card a {
  display: inline-block;
  margin-top: 22px;
  color: #C084FC;
  font-size: 11px;
}

/* =========================================================
   EXPLORE SECTION
========================================================= */
.explore-section {
  width: min(var(--container), calc(100% - 40px));
  margin: auto;
  padding: 100px 0;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 90px;
  align-items: center;
}

.explore-content h2 {
  text-align: left;
}

.explore-content p {
  max-width: 450px;
}

.explore-content .primary-button {
  margin-top: 28px;
}

.subject-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 13px;
}

.subject-card {
  min-height: 150px;
  padding: 25px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: linear-gradient(145deg, #12172B, #0E1326);
  transition: 0.3s;
}

.subject-card:hover {
  transform: scale(1.03);
  border-color: rgba(168, 85, 247, 0.25);
}

.subject-card > span {
  margin-bottom: auto;
  font-size: 25px;
  color: #A855F7;
}

.subject-card strong {
  font-family: "Sora", sans-serif;
  font-size: 14px;
}

.subject-card small {
  margin-top: 5px;
  color: #64748B;
  font-size: 10px;
}

.purple-card {
  background: linear-gradient(
    135deg,
    rgba(124, 58, 237, 0.23),
    rgba(18, 23, 43, 0.9)
  );
}

/* =========================================================
   CTA SECTION
========================================================= */
.cta-section {
  position: relative;
  width: min(var(--container), calc(100% - 40px));
  margin: 80px auto 100px;
  padding: 100px 30px;
  overflow: hidden;
  border: 1px solid rgba(168, 85, 247, 0.16);
  border-radius: 25px;
  background: linear-gradient(
    135deg,
    rgba(124, 58, 237, 0.13),
    rgba(168, 85, 247, 0.04)
  );
  text-align: center;
}

.cta-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: rgba(124, 58, 237, 0.12);
  filter: blur(100px);
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-content p {
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-content .primary-button {
  margin-top: 28px;
}

/* =========================================================
   PAGE SPECIFIC / CONTENT PAGES (ABOUT & FEATURES)
========================================================= */
.page-container {
  width: min(var(--container), calc(100% - 40px));
  margin: 60px auto 100px;
}

.page-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px;
}

.page-header h1 {
  font-family: "Sora", sans-serif;
  font-size: clamp(36px, 6vw, 56px);
  margin-top: 15px;
  letter-spacing: -2px;
}

.page-header p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
  margin-top: 15px;
}

.content-card {
  padding: 40px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(17, 22, 42, 0.6);
  backdrop-filter: blur(10px);
  margin-bottom: 30px;
  position: relative;
  overflow: visible;
}

.content-card h2 {
  font-family: "Sora", sans-serif;
  font-size: 24px;
  margin-bottom: 15px;
}

.content-card p {
  color: var(--muted);
  line-height: 1.8;
  font-size: 15px;
}

/* =========================================================
   FOOTER
========================================================= */
footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 50px 20px 24px;
  background: rgba(10, 14, 28, 0.5);
}

.footer-container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr 2fr;
  gap: 48px;
  align-items: start;
}

.footer-brand {
  display: flex;
  flex-direction: column;
}

.footer-brand p {
  margin-top: 14px;
  color: #94A3B8;
  font-size: 13px;
  line-height: 1.6;
  max-width: 320px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-links div {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links h4 {
  margin-bottom: 4px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #F8FAFC;
}

.footer-links a {
  color: #94A3B8;
  font-size: 13px;
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1.4;
}

.footer-links a:hover {
  color: #C084FC;
  transform: translateX(2px);
}

.footer-social-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #94A3B8 !important;
  font-size: 13px !important;
  text-decoration: none;
  transition: all 0.2s ease;
}

.footer-social-link i {
  font-size: 15px;
  width: 18px;
  text-align: center;
  transition: all 0.2s ease;
  color: #94A3B8;
}

.footer-social-link:hover {
  color: #FFFFFF !important;
  transform: translateX(3px);
}

.footer-social-link:hover i.fa-instagram {
  color: #E1306C;
  transform: scale(1.15);
}

.footer-social-link:hover i.fa-linkedin-in {
  color: #0A66C2;
  transform: scale(1.15);
}

.footer-social-link:hover i.fa-github {
  color: #FFFFFF;
  transform: scale(1.15);
}

.footer-bottom {
  width: min(var(--container), calc(100% - 40px));
  margin: 36px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #64748B;
  font-size: 12px;
}

/* =========================================================
   ERROR PAGES
========================================================= */
.error-section {
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
}

.error-card {
  max-width: 550px;
  padding: 50px 30px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(17, 22, 42, 0.8);
  backdrop-filter: blur(15px);
}

.error-code {
  font-family: "Sora", sans-serif;
  font-size: 72px;
  font-weight: 800;
  line-height: 1;
}

.error-title {
  font-family: "Sora", sans-serif;
  font-size: 24px;
  margin-top: 15px;
}

.error-desc {
  color: var(--muted);
  font-size: 14px;
  margin: 15px 0 30px;
  line-height: 1.6;
}

/* =========================================================
   RESPONSIVE LAYOUT ENGINE & MEDIA QUERIES
========================================================= */

/* Responsive Layout Utility Classes */
.layout-grid-2col {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 30px;
}

.layout-grid-detail {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 30px;
}

.form-grid-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  margin-bottom: 22px;
}

.form-grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-bottom: 18px;
  position: relative;
  overflow: visible;
}

.form-grid-2col > div {
  min-width: 0;
  position: relative;
  overflow: visible;
}

.doubts-filter-form {
  display: grid;
  grid-template-columns: 1fr auto auto auto auto;
  gap: 15px;
  align-items: center;
}

/* =========================================================
   DOUBTS & Q&A 4-COLUMN RESPONSIVE GRID
========================================================= */
.doubts-page-container {
  width: min(1440px, calc(100% - 40px));
  max-width: 1440px;
  margin: 36px auto 80px;
}

.doubts-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.doubt-card {
  display: flex;
  flex-direction: column;
  padding: 22px;
  border-radius: 18px;
  background: var(--card, #11162A);
  border: 1px solid var(--border);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  height: 100%;
  box-sizing: border-box;
}

.doubt-card:hover {
  transform: translateY(-3px);
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.doubt-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.doubt-card-badges {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.doubt-badge {
  padding: 3px 9px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  line-height: 1.2;
}

.doubt-badge.resolved {
  background: rgba(34, 197, 94, 0.18);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #4ADE80;
}

.doubt-badge.answered {
  background: rgba(59, 130, 246, 0.18);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: #60A5FA;
}

.doubt-badge.open {
  background: rgba(234, 179, 8, 0.18);
  border: 1px solid rgba(234, 179, 8, 0.35);
  color: #FDE047;
}

.doubt-badge.subject {
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(168, 85, 247, 0.25);
  color: #C4B5FD;
  font-weight: 600;
  text-transform: none;
}

.doubt-badge.topic {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--muted, #94A3B8);
  font-weight: 500;
  text-transform: none;
}

.doubt-card-date {
  font-size: 11.5px;
  color: var(--muted, #94A3B8);
  white-space: nowrap;
}

.doubt-card-title {
  font-family: 'Sora', sans-serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.doubt-card-title a {
  color: #FFFFFF;
  text-decoration: none;
  transition: color 0.2s ease;
}

.doubt-card-title a:hover {
  color: var(--lavender, #C084FC);
}

.doubt-card-desc {
  color: var(--muted, #94A3B8);
  font-size: 13.5px;
  line-height: 1.55;
  margin: 0 0 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.doubt-card-tags {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.doubt-card-tag {
  font-size: 11px;
  color: var(--muted, #94A3B8);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 2px 7px;
  border-radius: 6px;
}

.doubt-card-spacer {
  flex: 1 1 auto;
}

.doubt-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
  margin-top: 10px;
}

.doubt-card-author {
  color: var(--muted, #94A3B8);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 55%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.doubt-card-author strong {
  color: #FFFFFF;
}

.doubt-card-link {
  color: #C4B5FD;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s ease, transform 0.2s ease;
  white-space: nowrap;
}

.doubt-card-link:hover {
  color: #FFFFFF;
  transform: translateX(3px);
}

/* Tablet Breakpoint (768px to 1199px): 2 columns */
@media (max-width: 1199px) {
  .doubts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

/* Mobile Breakpoint (< 768px): 1 column */
@media (max-width: 767px) {
  .doubts-page-container {
    width: calc(100% - 24px);
    margin: 20px auto 60px;
  }
  .doubts-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .doubt-card {
    padding: 18px 16px;
  }
  .doubts-filter-form {
    grid-template-columns: 1fr;
  }
}

.notes-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 50px;
}

.stats-grid-4col {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
  margin-bottom: 30px;
}

/* =========================================================
   RESPONSIVE TABLE SYSTEM
========================================================= */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.responsive-table {
  width: 100%;
  min-width: 650px;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

.responsive-table th,
.responsive-table td {
  white-space: nowrap;
}

.responsive-table th.cell-wrap,
.responsive-table td.cell-wrap {
  white-space: normal;
  word-break: break-word;
  min-width: 180px;
}

/* Word wrapping & overflow protection */
h1, h2, h3, h4, p, span, a, td, th, div {
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* Images, SVGs, and Media Safety */
img, video, iframe, svg, canvas {
  max-width: 100%;
  height: auto;
}

/* Safe area support for modern notch devices */
body {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* =========================================================
   BREAKPOINT: TABLET & MOBILE NAV (< 992px)
========================================================= */
@media (max-width: 992px) {
  .nav-menu-wrapper {
    display: none;
  }

  .nav-menu-wrapper.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 78px;
    left: 0;
    width: 100%;
    max-height: calc(100vh - 78px);
    overflow-y: auto;
    overflow-x: hidden;
    background: rgba(11, 15, 33, 0.98);
    padding: 20px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
    z-index: 100;
    backdrop-filter: blur(24px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7);
    box-sizing: border-box;
  }

  .nav-menu-wrapper.active .nav-links {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
  }

  .nav-menu-wrapper.active .nav-actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 12px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    width: 100%;
  }

  .nav-menu-wrapper.active .nav-user-links {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
  }

  .nav-menu-wrapper.active .nav-user-account {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-menu-wrapper.active .nav-profile-chip-btn {
    width: 100%;
    justify-content: space-between;
    padding: 8px 12px;
    border-radius: 10px;
    box-sizing: border-box;
  }

  .nav-menu-wrapper.active .nav-profile-dropdown {
    position: static;
    width: 100%;
    box-shadow: none;
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 8px;
    box-sizing: border-box;
    display: none;
    opacity: 1;
    transform: none;
  }

  .nav-menu-wrapper.active .nav-user-account.open .nav-profile-dropdown {
    display: block;
  }

  .nav-menu-wrapper.active .nav-profile-chip {
    padding: 6px 14px 6px 6px;
    font-size: 13.5px;
  }

  .nav-menu-wrapper.active .nav-login-link,
  .nav-menu-wrapper.active .nav-signup-btn {
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
    padding: 11px;
    text-align: center;
  }

  .mobile-menu {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .layout-grid-2col,
  .layout-grid-detail {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .notes-filter-form {
    grid-template-columns: 1fr 1fr;
  }

  .doubts-filter-form {
    grid-template-columns: 1fr 1fr;
  }

  .explore-section {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-body {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    overflow-x: auto;
    padding: 10px;
  }

  .side-item {
    white-space: nowrap;
    margin-bottom: 0;
    margin-right: 8px;
  }
}

/* =========================================================
   BREAKPOINT: PHONES & NARROW TABLETS (< 640px)
========================================================= */
@media (max-width: 640px) {
  .hero {
    padding: 60px 15px 50px;
  }

  .hero h1 {
    font-size: clamp(32px, 8vw, 48px);
    letter-spacing: -1.5px;
  }

  .hero-description {
    font-size: 14px;
    padding: 0 10px;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
  }

  .primary-button,
  .secondary-button,
  .nav-button {
    width: 100%;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="number"],
  select {
    font-size: 16px !important;
    min-height: 44px;
  }

  .content-card {
    padding: 22px 18px;
    border-radius: 16px;
  }

  .form-grid-3col,
  .form-grid-2col,
  .layout-grid-2col,
  .notes-filter-form,
  .doubts-filter-form {
    grid-template-columns: 1fr !important;
  }

  .stats-grid-4col {
    grid-template-columns: repeat(2, 1fr);
  }

  .notes-cards-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-wrapper {
    margin-top: 40px;
  }

  .dashboard-top {
    height: auto;
    min-height: 48px;
    padding: 10px 14px;
    gap: 10px;
  }

  .fake-window-buttons {
    width: auto;
    gap: 4px;
  }

  .fake-search {
    width: 100%;
    max-width: 220px;
    padding: 5px 10px;
  }

  .dashboard-main {
    padding: 15px;
  }

  .mini-stats {
    grid-template-columns: 1fr;
  }

  .preview-notes {
    grid-template-columns: 1fr;
  }

  .stats-container {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat {
    padding: 22px 14px;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .stat:nth-child(2n) {
    border-right: none;
  }

  .stat:nth-child(3),
  .stat:nth-child(4) {
    border-bottom: none;
  }

  .stat strong,
  .stat .stat-number {
    font-size: 26px;
  }

  .stat span,
  .stat .stat-label {
    font-size: 12px;
    margin-top: 6px;
  }

  .features-section,
  .explore-section {
    width: calc(100% - 30px);
    padding: 60px 0;
  }

  .subject-grid {
    grid-template-columns: 1fr;
  }

  .cta-section {
    width: calc(100% - 30px);
    padding: 50px 18px;
    margin: 40px auto 60px;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}

@media (max-width: 580px) {
  .footer-links {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

@media (max-width: 400px) {
  .footer-links {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* =========================================================
   BREAKPOINT: SMALL PHONES (320px - 390px)
========================================================= */
@media (max-width: 390px) {
  .logo span {
    font-size: 18px;
  }

  .page-container {
    width: calc(100% - 20px);
  }

  .content-card {
    padding: 18px 14px;
  }

  .stats-grid-4col {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   SHARE NOTE FEATURE STYLES
========================================================= */
.resource-header-card {
  position: relative;
  z-index: 20;
}

.share-wrapper {
  position: relative;
  display: inline-block;
  z-index: 1001;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
}

.share-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  flex-direction: column;
  background: var(--bg-2, #0D1124);
  border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
  border-radius: 12px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
  padding: 8px;
  min-width: 180px;
  max-width: calc(100vw - 32px);
  z-index: 1002;
}

.share-menu.show {
  display: flex !important;
  flex-direction: column !important;
}

.share-option {
  width: 100%;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  min-height: 44px;
  color: var(--white, #F8FAFC);
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 8px;
  text-decoration: none;
  appearance: none;
  -webkit-appearance: none;
  box-sizing: border-box;
  transition: background 0.15s ease, color 0.15s ease;
}

.share-option:hover,
.share-option:focus-visible {
  background: rgba(124, 58, 237, 0.2);
  color: var(--white, #F8FAFC);
  outline: none;
}

.share-toast {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(16, 185, 129, 0.95);
  color: #ffffff;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  z-index: 110;
  backdrop-filter: blur(8px);
}

.share-toast.toast-error {
  background: rgba(239, 68, 68, 0.95);
}

.share-toast.show {
  display: block;
}



/* =========================================================
   NAVBAR — STICKY POSITION FIX ONLY
   (Original navbar CSS preserved at lines 127-236)
========================================================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 200;
}





/* =========================================================
   RESOURCE DETAIL PAGE — PRODUCTION EDUCATION SAAS REDESIGN
========================================================= */

.resource-detail-container {
  max-width: 1240px;
  width: min(1240px, calc(100% - 40px));
  margin: 24px auto 80px;
  padding: 0;
}

/* Breadcrumb Navigation */
.resource-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--muted);
}

.breadcrumb-link {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.breadcrumb-link:hover {
  color: #FFFFFF;
}

.breadcrumb-link.highlight {
  color: var(--lavender);
  font-weight: 600;
}

.breadcrumb-sep {
  color: rgba(255, 255, 255, 0.2);
  user-select: none;
}

.breadcrumb-current {
  color: #F8FAFC;
  font-weight: 500;
}

/* Resource Header Card */
.resource-header-card {
  background: rgba(17, 22, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 28px;
  margin-bottom: 24px;
  backdrop-filter: blur(12px);
  position: relative;
  z-index: 20;
}

.header-badges-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.header-badges-list {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* Badges */
.badge-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.3px;
}

.badge-chip.purple {
  background: rgba(124, 58, 237, 0.18);
  border: 1px solid rgba(168, 85, 247, 0.3);
  color: #C4B5FD;
}

.badge-chip.purple-soft {
  background: rgba(168, 85, 247, 0.1);
  border: 1px solid rgba(168, 85, 247, 0.2);
  color: #DDD6FE;
}

.badge-chip.muted {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
}

.badge-chip.gold {
  background: rgba(234, 179, 8, 0.15);
  border: 1px solid rgba(234, 179, 8, 0.35);
  color: #FDE047;
  font-weight: 800;
}

.badge-chip.uppercase {
  text-transform: uppercase;
}

/* Title & Description */
.resource-title {
  font-family: 'Sora', sans-serif;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.3;
  color: #FFFFFF;
  margin: 0 0 12px 0;
  overflow-wrap: break-word;
}

.resource-short-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0 0 16px 0;
  max-width: 900px;
}

/* Author & Meta Row */
.resource-author-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 13px;
  color: var(--muted);
}

.upload-date {
  color: #64748B;
  font-size: 12px;
}

/* Moderation Alert */
.moderation-alert-banner {
  margin-top: 18px;
  padding: 12px 18px;
  border-radius: 10px;
  background: rgba(234, 179, 8, 0.12);
  border: 1px solid rgba(234, 179, 8, 0.3);
  color: #FDE047;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* Action Buttons Bar */
.resource-actions-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.secondary-actions-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.primary-action-group {
  display: flex;
  align-items: center;
}

/* Universal Action Button System */
.action-btn {
  height: 40px;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: #E2E8F0;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
}

.action-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.action-btn:active {
  transform: translateY(0);
}

.action-btn:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 2px;
}

.action-btn.liked,
.action-btn.active-like {
  background: rgba(236, 72, 153, 0.15);
  border-color: rgba(236, 72, 153, 0.4);
  color: #F472B6;
}

.action-btn.liked:hover {
  background: rgba(236, 72, 153, 0.22);
  color: #FB7185;
}

.action-btn.bookmarked,
.action-btn.active-bookmark {
  background: rgba(234, 179, 8, 0.15);
  border-color: rgba(234, 179, 8, 0.4);
  color: #FDE047;
}

.action-btn.bookmarked:hover {
  background: rgba(234, 179, 8, 0.22);
  color: #FEF08A;
}

.action-btn-primary {
  background: var(--gradient, linear-gradient(135deg, #7C3AED, #A855F7));
  border: 1px solid transparent;
  color: #FFFFFF;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
}

.action-btn-primary:hover {
  background: linear-gradient(135deg, #8B5CF6, #C084FC);
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.45);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.action-btn-modal {
  background: rgba(124, 58, 237, 0.12);
  border-color: rgba(168, 85, 247, 0.25);
  color: #C4B5FD;
}

.action-btn-modal:hover {
  background: rgba(124, 58, 237, 0.22);
  color: #FFFFFF;
}

.action-icon {
  font-size: 15px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.action-count {
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 6px;
  border-radius: 6px;
  font-size: 11px;
  margin-left: 2px;
}

.action-btn[data-loading="true"] {
  opacity: 0.6;
  pointer-events: none;
}

/* =========================================================
   MAIN CONTENT GRID: PREVIEW (LEFT) + SIDEBAR (RIGHT)
========================================================= */
.resource-main-grid {
  display: grid;
  grid-template-columns: minmax(0, 2.3fr) minmax(0, 1fr);
  gap: 24px;
  margin-bottom: 24px;
  align-items: start;
}

.resource-primary-col {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.resource-sidebar-col {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.header-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  margin: 18px 0;
}

/* Document Preview Card */
.doc-preview-card {
  padding: 22px;
  border-radius: 16px;
  background: rgba(17, 22, 42, 0.7);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.card-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 8px;
}

.card-title {
  font-family: 'Sora', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Document Viewport — Balanced aspect ratio, no large empty borders */
.doc-preview-viewport {
  background: rgba(8, 11, 24, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
}

.doc-preview-frame {
  width: 100%;
  max-width: 580px;
  height: 480px;
  border: none;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  display: block;
  background: #FFFFFF;
}

/* Graceful Fallback Container when PDF Preview is blocked or unavailable */
.doc-preview-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 36px 20px;
  background: rgba(14, 18, 36, 0.95);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  width: 100%;
  max-width: 580px;
  min-height: 280px;
  box-sizing: border-box;
  gap: 12px;
}

.doc-preview-fallback .fallback-icon {
  font-size: 38px;
  line-height: 1;
}

.doc-preview-fallback .fallback-title {
  font-family: 'Sora', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0;
}

.doc-preview-fallback .fallback-desc {
  font-size: 13px;
  color: var(--muted, #94A3B8);
  margin: 0 0 6px;
  max-width: 400px;
  line-height: 1.5;
}

.doc-preview-fallback .fallback-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.doc-preview-image {
  max-width: 100%;
  max-height: 480px;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.doc-preview-placeholder {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.placeholder-icon {
  font-size: 48px;
  line-height: 1;
}

.placeholder-filename {
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
}

.placeholder-filesize {
  color: var(--muted);
  font-size: 13px;
}

.doc-preview-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.file-info-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.file-name-text {
  color: #CBD5E1;
  font-weight: 500;
}

.open-tab-link {
  color: var(--lavender);
  text-decoration: none;
  font-weight: 600;
  margin-left: 4px;
  transition: color 0.15s ease;
}

.open-tab-link:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.doc-preview-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: 12px;
}

/* Resource Details Card (Sidebar) */
.resource-info-card {
  padding: 22px;
  border-radius: 16px;
  background: rgba(17, 22, 42, 0.7);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.card-subtitle-caps {
  font-family: 'Sora', sans-serif;
  font-size: 11px;
  font-weight: 800;
  color: #A855F7;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  margin: 0 0 16px 0;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* 2-Column Metadata Grid */
.metadata-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 12px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  background: rgba(255, 255, 255, 0.02);
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.meta-item.full-span {
  grid-column: 1 / -1;
  flex-direction: row;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.meta-label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.meta-value {
  font-size: 13px;
  color: #FFFFFF;
  font-weight: 600;
  overflow-wrap: break-word;
  word-break: break-word;
}

.meta-value.uppercase-text {
  text-transform: uppercase;
}

.meta-value.gold-text {
  color: #FDE047;
  font-weight: 700;
}

.meta-value.green-text {
  color: #4ADE80;
}

.author-meta-link {
  color: var(--lavender);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s ease;
}

.author-meta-link:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

/* =========================================================
   ABOUT THIS RESOURCE
========================================================= */
.resource-about-card {
  padding: 22px;
  border-radius: 16px;
  background: rgba(17, 22, 42, 0.7);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.resource-description-text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text);
  white-space: pre-line;
  margin-bottom: 16px;
}

.about-key-topics {
  margin-bottom: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.about-subsection-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin: 0 0 8px 0;
}

.key-topic-text {
  font-size: 13px;
  color: #E2E8F0;
  margin: 0;
  line-height: 1.5;
}

.resource-tags-section {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 14px;
}

.tags-chips-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag-chip {
  font-size: 12px;
  color: #C4B5FD;
  background: rgba(124, 58, 237, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
  text-decoration: none;
  transition: all 0.15s ease;
}

.tag-chip:hover {
  background: rgba(124, 58, 237, 0.24);
  color: #FFFFFF;
  border-color: rgba(168, 85, 247, 0.45);
  transform: translateY(-1px);
}

/* =========================================================
   RATING SECTION (SIDEBAR)
========================================================= */
.resource-rating-card {
  padding: 22px;
  border-radius: 16px;
  background: rgba(17, 22, 42, 0.7);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.rating-box-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rating-display-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}

.rating-big-score {
  font-family: 'Sora', sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: #FDE047;
  line-height: 1;
}

.rating-count-label {
  font-size: 12px;
  color: var(--muted);
}

.rating-subtext {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}

.rating-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stars-interactive-group {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.star-rating-item {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  padding: 2px;
}

.star-glyph {
  font-size: 26px;
  color: #374151;
  transition: color 0.15s ease, transform 0.15s ease;
  display: inline-block;
  user-select: none;
}

.star-glyph.active,
.star-glyph.selected {
  color: #FDE047;
  transform: scale(1.12);
}

.rating-review-input {
  width: 100%;
  height: 40px;
  padding: 0 14px;
  border-radius: 9px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  color: #FFFFFF;
  font-family: inherit;
  font-size: 13px;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.15s ease;
}

.rating-review-input:focus {
  border-color: var(--purple);
}

.rating-guest-box {
  padding: 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--border);
  text-align: center;
}

.guest-text {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 10px 0;
}

/* =========================================================
   DISCUSSION / COMMENTS SECTION
========================================================= */
.resource-discussion-card {
  padding: 22px;
  border-radius: 16px;
  background: rgba(17, 22, 42, 0.7);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.discussion-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.comment-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(124, 58, 237, 0.2);
  border: 1px solid rgba(168, 85, 247, 0.35);
  color: #C4B5FD;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  margin-left: 6px;
}

.comment-post-form {
  margin-bottom: 24px;
}

.comment-textarea-wrap {
  margin-bottom: 10px;
}

.comment-textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  color: #FFFFFF;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.15s ease;
}

.comment-textarea:focus {
  border-color: var(--purple);
}

.comment-form-actions {
  display: flex;
  justify-content: flex-end;
}

.comment-submit-btn {
  padding: 0 20px;
}

.comment-guest-prompt {
  padding: 14px 18px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--border);
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 24px;
}

.comment-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comment-item {
  padding: 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  transition: border-color 0.15s ease;
}

.comment-item:hover {
  border-color: rgba(168, 85, 247, 0.25);
}

.comment-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 8px;
}

.comment-author-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.comment-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient, linear-gradient(135deg, #7C3AED, #A855F7));
  display: grid;
  place-items: center;
  overflow: hidden;
  flex-shrink: 0;
}

.comment-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.comment-avatar-initial {
  color: white;
  font-weight: 700;
  font-size: 13px;
}

.comment-author-meta {
  display: flex;
  flex-direction: column;
}

.comment-user-name {
  color: #FFFFFF;
  font-weight: 600;
  font-size: 13px;
  text-decoration: none;
  transition: color 0.15s ease;
}

.comment-user-name:hover {
  color: var(--lavender);
}

.comment-user-handle {
  color: var(--muted);
  font-size: 11px;
}

.comment-timestamp {
  color: #64748B;
  font-size: 11px;
  white-space: nowrap;
}

.comment-text {
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
  overflow-wrap: break-word;
}

.comment-footer-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}

.comment-delete-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.15s ease;
  font-family: inherit;
}

.comment-delete-btn:hover {
  background: rgba(239, 68, 68, 0.12);
  color: #F87171;
}

.comment-empty-wrap {
  text-align: center;
  padding: 32px 16px;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.empty-icon {
  font-size: 32px;
  line-height: 1;
}

.empty-title {
  font-size: 14px;
  color: #FFFFFF;
  font-weight: 600;
}

.empty-sub {
  font-size: 12px;
  margin: 0;
}

/* =========================================================
   FULL DOCUMENT MODAL
========================================================= */
.doc-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
  box-sizing: border-box;
}

.doc-modal-overlay.open {
  display: flex !important;
}

.doc-modal-inner {
  position: relative;
  width: 94vw;
  max-width: 1080px;
  height: 90vh;
  background: #0D1124;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
}

.doc-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: rgba(17, 22, 42, 0.9);
}

.doc-modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.doc-modal-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.doc-modal-title {
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.doc-modal-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.modal-tool-btn {
  font-size: 12px;
  font-weight: 600;
  color: var(--lavender);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.15s ease;
}

.modal-tool-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
}

.modal-close-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: #FFFFFF;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: background 0.15s ease;
}

.modal-close-btn:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #F87171;
  border-color: rgba(239, 68, 68, 0.4);
}

.doc-modal-frame {
  flex: 1;
  width: 100%;
  border: none;
  display: block;
}

/* =========================================================
   SHARE MODAL
========================================================= */
.share-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
  box-sizing: border-box;
}

.share-modal-overlay.open {
  display: flex !important;
}

.share-modal-card {
  width: 100%;
  max-width: 440px;
  background: #0D1124;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
  box-sizing: border-box;
  animation: modalFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.share-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.share-modal-title {
  font-family: 'Sora', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0;
}

.share-modal-desc {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 16px 0;
  line-height: 1.5;
}

.share-copy-box {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.share-url-input {
  flex: 1;
  height: 40px;
  padding: 0 12px;
  border-radius: 9px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: inherit;
  font-size: 12px;
  outline: none;
  box-sizing: border-box;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-btn {
  flex-shrink: 0;
}

.share-social-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.social-share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: #E2E8F0;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s ease;
  box-sizing: border-box;
}

.social-share-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.social-share-btn.whatsapp:hover {
  border-color: rgba(37, 211, 102, 0.4);
  background: rgba(37, 211, 102, 0.12);
}

.social-share-btn.telegram:hover {
  border-color: rgba(0, 136, 204, 0.4);
  background: rgba(0, 136, 204, 0.12);
}

.social-share-btn.linkedin:hover {
  border-color: rgba(10, 102, 194, 0.4);
  background: rgba(10, 102, 194, 0.12);
}

.social-share-btn.email:hover {
  border-color: rgba(168, 85, 247, 0.4);
  background: rgba(124, 58, 237, 0.12);
}

.social-icon {
  font-size: 16px;
  line-height: 1;
}

.native-share-btn {
  background: rgba(124, 58, 237, 0.15);
  border-color: rgba(168, 85, 247, 0.3);
  color: #C4B5FD;
}

.native-share-btn:hover {
  background: rgba(124, 58, 237, 0.25);
  color: #FFFFFF;
}

/* =========================================================
   PROFILE — PREMIUM PUBLIC PROFILE
========================================================= */

.profile-header-card {
  background: rgba(17,22,42,0.6);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  position: relative;
  overflow: hidden;
  margin-bottom: 24px;
}

.profile-hero {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.profile-avatar-lg {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--gradient);
  display: grid;
  place-items: center;
  font-size: 32px;
  font-weight: 700;
  color: white;
  border: 3px solid rgba(168,85,247,0.35);
  flex-shrink: 0;
  overflow: hidden;
}
.profile-avatar-lg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.profile-meta { flex: 1; min-width: 220px; }

.profile-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}
.profile-name {
  font-family: 'Sora', sans-serif;
  font-size: 26px;
  font-weight: 700;
  margin: 0;
  color: white;
}
.profile-role-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(124,58,237,0.2);
  border: 1px solid rgba(168,85,247,0.4);
  color: #C4B5FD;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  white-space: nowrap;
}
.profile-role-badge.verified {
  background: rgba(34,197,94,0.15);
  border-color: rgba(34,197,94,0.35);
  color: #4ADE80;
}

.profile-username {
  color: var(--lavender);
  font-size: 13px;
  margin-bottom: 10px;
}

.profile-bio {
  color: var(--text);
  font-size: 14px;
  line-height: 1.65;
  max-width: 600px;
  margin-bottom: 14px;
}

/* Academic info section */
.profile-academic-section {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  margin-top: 14px;
}
.profile-academic-section-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--lavender);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 10px;
}
.profile-academic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 8px 16px;
}
.profile-academic-item {
  font-size: 13px;
  line-height: 1.5;
}
.profile-academic-item-label {
  color: var(--muted);
  font-size: 11px;
}
.profile-academic-item-value {
  color: white;
  font-weight: 500;
}

/* Interest chips */
.profile-interests {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.interest-chip {
  font-size: 12px;
  color: #C4B5FD;
  background: rgba(124,58,237,0.13);
  border: 1px solid rgba(168,85,247,0.25);
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
}

/* Profile stats grid */
.profile-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.profile-stat-item {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  text-align: center;
}
.profile-stat-value {
  font-size: 22px;
  font-weight: 700;
  color: white;
  display: block;
}
.profile-stat-label {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 3px;
  display: block;
}

/* =========================================================
   AVATAR UPLOAD — PROFILE EDIT
========================================================= */
.avatar-upload-section {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  background: rgba(255,255,255,0.02);
  margin-bottom: 20px;
}
.avatar-upload-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
  display: block;
}
.avatar-preview-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.avatar-preview-circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--gradient);
  display: grid;
  place-items: center;
  font-size: 26px;
  font-weight: 700;
  color: white;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid rgba(168,85,247,0.35);
}
.avatar-preview-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.avatar-upload-btn-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.avatar-file-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(168,85,247,0.3);
  color: #C4B5FD;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s;
}
.avatar-file-label:hover {
  background: rgba(124,58,237,0.25);
  color: white;
}
.avatar-file-input { display: none; }
.avatar-file-hint {
  font-size: 11px;
  color: var(--muted);
}

/* =========================================================
   COMMENT & INTERACTION AJAX STATES
========================================================= */
.comment-list { display: flex; flex-direction: column; gap: 12px; }

.comment-item {
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  transition: border-color 0.15s;
}
.comment-item:hover { border-color: rgba(168,85,247,0.15); }

.comment-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
  gap: 10px;
}
.comment-author-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.comment-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
  overflow: hidden;
}
.comment-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.comment-text {
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.comment-actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
  font-size: 12px;
}
.comment-action-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  font-size: 12px;
  font-family: inherit;
  transition: color 0.15s;
}
.comment-action-btn:hover { color: white; }
.comment-action-btn.danger:hover { color: #F87171; }

/* Toast notification */
.ajax-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(16,185,129,0.95);
  color: white;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  z-index: 9999;
  transform: translateY(80px);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
  backdrop-filter: blur(8px);
  white-space: nowrap;
}
.ajax-toast.show {
  transform: translateY(0);
  opacity: 1;
}
.ajax-toast.error { background: rgba(239,68,68,0.95); }

/* =========================================================
   RESPONSIVE — RESOURCE DETAIL & PROFILE PAGES
========================================================= */

/* Desktop & Laptop adaptations (1024px–1199px) */
@media (max-width: 1199px) {
  .resource-main-grid {
    gap: 20px;
    grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr);
  }
  .doc-preview-frame {
    max-width: 100%;
    height: 460px;
  }
}

/* Tablet (769px–991px): Stack Sidebar below left content */
@media (max-width: 991px) {
  .resource-main-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .resource-primary-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .resource-sidebar-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .doc-preview-viewport {
    min-height: 420px;
  }
  .doc-preview-frame {
    width: 100%;
    max-width: 500px;
    height: 440px;
  }
}

/* Mobile & Small Tablets (< 768px): Seamless Logical Mobile Stack */
@media (max-width: 768px) {
  .resource-detail-container {
    width: calc(100% - 24px);
    margin: 16px auto 50px;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .resource-main-grid,
  .resource-primary-col,
  .resource-sidebar-col {
    display: contents;
  }

  /* Explicit Mobile Hierarchy */
  .doc-preview-card { order: 1; margin-bottom: 0; }
  .resource-info-card { order: 2; margin-bottom: 0; }
  .resource-rating-card { order: 3; margin-bottom: 0; }
  .resource-about-card { order: 4; margin-bottom: 0; }
  .resource-discussion-card { order: 5; margin-bottom: 0; }

  .resource-header-card {
    padding: 18px 16px;
    border-radius: 14px;
    margin-bottom: 0;
  }

  .resource-title {
    font-size: 21px;
    line-height: 1.35;
  }

  .resource-actions-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-top: 14px;
  }

  .secondary-actions-group {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    width: 100%;
    gap: 6px;
  }

  .secondary-actions-group .action-btn {
    width: 100%;
    padding: 0 4px;
    font-size: 11px;
    justify-content: center;
    height: 42px;
  }

  .primary-action-group {
    width: 100%;
  }

  .action-download {
    width: 100%;
    justify-content: center;
    height: 44px;
    font-size: 14px;
  }

  .doc-preview-card,
  .resource-info-card,
  .resource-about-card,
  .resource-rating-card,
  .resource-discussion-card {
    padding: 16px;
    border-radius: 14px;
  }

  .doc-preview-viewport {
    min-height: 350px;
    padding: 10px 6px;
  }

  .doc-preview-frame {
    width: 100%;
    max-width: 100%;
    height: 380px;
  }

  .rating-display-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .share-social-grid {
    grid-template-columns: 1fr 1fr;
  }

  .doc-modal-inner {
    width: 98vw;
    height: 94vh;
    border-radius: 10px;
  }

  /* Profile page responsive rules */
  .profile-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .profile-hero {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .profile-name-row {
    justify-content: center;
  }
  .profile-interests {
    justify-content: center;
  }
  .profile-bio {
    text-align: center;
  }
}

/* Small Phones (< 480px) */
@media (max-width: 480px) {
  .resource-detail-container {
    width: calc(100% - 16px);
  }

  .resource-title {
    font-size: 19px;
  }

  .badge-chip {
    font-size: 10px;
    padding: 3px 8px;
  }

  .doc-preview-viewport {
    min-height: 320px;
  }

  .doc-preview-frame {
    height: 330px;
  }

  .doc-preview-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .doc-preview-footer .action-btn {
    width: 100%;
    justify-content: center;
  }

  .file-info-badge {
    justify-content: center;
    flex-wrap: wrap;
  }

  .share-modal-card {
    padding: 18px 14px;
  }

  .share-copy-box {
    flex-direction: column;
  }

  .share-copy-box .copy-btn {
    width: 100%;
  }

  .share-social-grid {
    grid-template-columns: 1fr;
  }

  .comment-textarea {
    font-size: 13px;
    padding: 12px;
  }

  .comment-form-actions {
    justify-content: stretch;
  }

  .comment-submit-btn {
    width: 100%;
  }
}

/* Very Small Phones (<= 360px down to 320px) */
@media (max-width: 360px) {
  .resource-title {
    font-size: 17px;
  }

  .secondary-actions-group {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  .secondary-actions-group .action-btn {
    font-size: 12px;
    height: 40px;
  }

  .metadata-grid {
    grid-template-columns: 1fr;
  }

  .profile-stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .profile-avatar-lg {
    width: 72px;
    height: 72px;
    font-size: 26px;
  }
}

/* =========================================================
   EXPLORE NOTES / RESOURCES — PRODUCTION RESPONSIVE PASS
========================================================= */

/* Page Container & Header (Desktop Base) */
.notes-page-container {
  max-width: 1240px;
  width: min(1240px, calc(100% - 40px));
  margin: 24px auto 80px;
}

.notes-page-header {
  margin-bottom: 28px;
}

.notes-page-header .section-badge {
  display: inline-block;
  margin-bottom: 10px;
}

.notes-page-title {
  font-family: 'Sora', sans-serif;
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.8px;
  margin: 0 0 10px;
  color: #FFFFFF;
}

.notes-page-subtitle {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 680px;
  margin: 0;
}

/* Category Quick Filter Tabs */
.notes-category-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 25px;
  flex-wrap: wrap;
}

.category-tab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  border: 1px solid var(--border);
  transition: all 0.2s ease;
  min-height: 40px;
  box-sizing: border-box;
}

.category-tab:hover,
.category-tab:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.18);
  outline: none;
}

.category-tab.active {
  background: var(--gradient);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.35);
}

.category-tab .tab-icon {
  font-size: 14px;
  line-height: 1;
}

.tab-text-mobile {
  display: none;
}

.tab-text-desktop {
  display: inline;
}

/* Filter Card & Form */
.notes-filter-card {
  padding: 24px;
  margin-bottom: 35px;
  border-radius: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  position: relative;
  overflow: visible;
}

.notes-filter-form {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  align-items: center;
  position: relative;
  overflow: visible;
  width: 100%;
}

.filter-field {
  width: 100%;
  min-width: 0;
  position: relative;
  overflow: visible;
}

.filter-input,
.filter-select {
  width: 100%;
  height: 42px;
  padding: 0 14px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: #0D1124;
  color: #FFFFFF;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  color-scheme: dark;
}

.filter-select {
  cursor: pointer;
  padding-right: 32px;
}

select,
.filter-select {
  color-scheme: dark;
  background-color: #0D1124;
  color: #FFFFFF;
}

select option,
.filter-select option,
select optgroup,
.filter-select optgroup {
  color-scheme: dark;
  background-color: #0D1124 !important;
  color: #FFFFFF !important;
  padding: 8px 12px;
  font-size: 13.5px;
  font-family: inherit;
}

.filter-input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.filter-input:focus,
.filter-select:focus {
  border-color: var(--lavender);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.25);
}

.filter-submit-btn {
  width: 100%;
  height: 42px;
  padding: 0 16px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 9px;
  border: none;
  background: var(--gradient);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-sizing: border-box;
  transition: all 0.2s ease;
}

.filter-submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(124, 58, 237, 0.35);
}

/* Resource Cards Grid */
.notes-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 50px;
}

.note-card-item {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  position: relative;
  border-radius: 16px;
  padding: 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-sizing: border-box;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.note-card-item:hover {
  transform: translateY(-3px);
  border-color: rgba(124, 58, 237, 0.4);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.note-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 6px;
}

.note-type-chip {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.3;
}

.chip-pyq {
  background: rgba(234, 179, 8, 0.2);
  color: #FDE047;
  border: 1px solid rgba(234, 179, 8, 0.25);
}

.chip-important {
  background: rgba(239, 68, 68, 0.2);
  color: #F87171;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.chip-notes {
  background: rgba(124, 58, 237, 0.15);
  color: #C084FC;
  border: 1px solid rgba(168, 85, 247, 0.25);
}

.note-stats-text {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  line-height: 1.3;
  margin-top: 2px;
}

.note-card-title {
  font-family: 'Sora', sans-serif;
  font-size: 18px;
  font-weight: 600;
  margin-top: 0;
  margin-bottom: 8px;
  line-height: 1.4;
  overflow-wrap: break-word;
}

.note-card-title a {
  color: #FFFFFF;
  text-decoration: none;
  transition: color 0.15s ease;
}

.note-card-title a:hover {
  color: var(--lavender);
}

.note-card-desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
  overflow-wrap: break-word;
}

/* Owner & Admin Actions on Note Cards */
.note-card-owner-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  margin-bottom: 12px;
  padding-top: 10px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
}

.note-card-action-form {
  display: inline-flex;
  margin: 0;
  padding: 0;
}

.note-card-action-btn {
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  appearance: none !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  box-sizing: border-box;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  white-space: nowrap;
}

.note-card-action-btn .btn-icon {
  font-size: 13px;
  line-height: 1;
  display: inline-block;
}

.note-card-action-btn:focus-visible {
  outline: 2px solid var(--purple, #A855F7);
  outline-offset: 2px;
}

.note-card-edit-btn {
  background: rgba(124, 58, 237, 0.12) !important;
  border: 1px solid rgba(168, 85, 247, 0.35) !important;
  color: #C4B5FD !important;
}

.note-card-edit-btn:hover {
  background: rgba(124, 58, 237, 0.25) !important;
  border-color: rgba(168, 85, 247, 0.7) !important;
  color: #FFFFFF !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.25);
}

.note-card-delete-btn {
  background: rgba(239, 68, 68, 0.1) !important;
  border: 1px solid rgba(239, 68, 68, 0.25) !important;
  color: #FCA5A5 !important;
}

.note-card-delete-btn:hover {
  background: rgba(239, 68, 68, 0.22) !important;
  border-color: rgba(239, 68, 68, 0.6) !important;
  color: #FFFFFF !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

.note-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: auto;
  flex-wrap: wrap;
  gap: 8px;
}

.note-view-link {
  color: var(--lavender);
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.note-view-link:hover {
  color: #FFFFFF;
  transform: translateX(2px);
}

/* Empty State Card */
.notes-empty-card {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  border-radius: 18px;
}

.notes-empty-card .empty-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.notes-empty-card .empty-title {
  font-family: 'Sora', sans-serif;
  font-size: 20px;
  color: #FFFFFF;
  margin: 0 0 8px;
}

.notes-empty-card .empty-desc {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 20px;
}

.notes-empty-card .empty-reset-btn {
  display: inline-flex;
  padding: 10px 22px;
}

/* Pagination Bar */
.notes-pagination-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.pagination-btn {
  padding: 9px 16px;
  font-size: 13px;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
}

.pagination-info {
  font-size: 13px;
  color: var(--muted);
  padding: 0 8px;
  white-space: nowrap;
}

/* =========================================================
   TABLET BREAKPOINT (768px – 1023px)
========================================================= */
@media (min-width: 768px) and (max-width: 1023px) {
  .notes-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .notes-filter-form {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .notes-filter-form .filter-field-search,
  .notes-filter-form .filter-field-btn {
    grid-column: 1 / -1;
  }

  .filter-input,
  .filter-select,
  .filter-submit-btn {
    height: 44px;
    font-size: 13px;
  }
}

/* =========================================================
   MOBILE BREAKPOINT (< 768px)
========================================================= */
@media (max-width: 767px) {
  /* Navbar on mobile */
  .navbar {
    height: 64px;
  }

  .nav-menu-wrapper.active {
    top: 64px;
    max-height: calc(100vh - 64px);
  }

  .logo img {
    width: 32px;
    height: 32px;
  }

  .logo span {
    font-size: 18px;
  }

  .mobile-menu {
    min-height: 44px;
    min-width: 44px;
    font-size: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  /* Container */
  .notes-page-container {
    width: calc(100% - 24px);
    margin: 16px auto 50px;
  }

  /* Header */
  .notes-page-header {
    margin-bottom: 20px;
  }

  .notes-page-header .section-badge {
    font-size: 10px;
    padding: 3px 9px;
    margin-bottom: 8px;
  }

  .notes-page-title {
    font-size: clamp(24px, 7vw, 32px);
    line-height: 1.25;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
  }

  .notes-page-subtitle {
    font-size: 13px;
    line-height: 1.5;
  }

  /* Category Tabs: 2-column Segmented Layout */
  .notes-category-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 20px;
    width: 100%;
  }

  .category-tab {
    width: 100%;
    height: 44px;
    min-height: 44px;
    padding: 0 8px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 12px;
    justify-content: center;
    text-align: center;
    white-space: nowrap;
    box-sizing: border-box;
  }

  .category-tab .tab-icon {
    font-size: 13px;
  }

  .tab-text-desktop {
    display: none;
  }

  .tab-text-mobile {
    display: inline;
  }

  /* Filter Panel: Compact Card */
  .notes-filter-card {
    padding: 16px;
    margin-bottom: 24px;
    border-radius: 16px;
    background: rgba(13, 17, 36, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    overflow: visible;
  }

  .notes-filter-form {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    width: 100%;
    position: relative;
    overflow: visible;
  }

  .filter-field {
    width: 100%;
    min-width: 0;
    position: relative;
    overflow: visible;
  }

  .filter-input,
  .filter-select {
    height: 46px;
    min-height: 46px;
    font-size: 14px;
    padding: 0 14px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: #0D1124;
    color: #FFFFFF;
    color-scheme: dark;
  }

  .filter-submit-btn {
    height: 46px;
    min-height: 46px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 10px;
    width: 100%;
  }

  /* Resource Cards: Single Column */
  .notes-cards-grid {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 35px;
    width: 100%;
  }

  .note-card-item {
    padding: 16px;
    border-radius: 16px;
    height: auto;
    width: 100%;
    max-width: 100%;
  }

  .note-card-header {
    margin-bottom: 10px;
    align-items: center;
  }

  .note-type-chip {
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 6px;
  }

  .note-stats-text {
    font-size: 11px;
    margin-top: 0;
  }

  .note-card-title {
    font-size: 17px;
    line-height: 1.35;
    margin-bottom: 6px;
  }

  .note-card-desc {
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 14px;
  }

  .note-card-footer {
    padding-top: 12px;
    gap: 8px;
  }

  .note-card-footer .author-identity-badge {
    min-width: 0;
    max-width: calc(100% - 110px);
  }

  .note-card-footer .author-identity-link span {
    max-width: 90px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .note-view-link {
    font-size: 12px;
    padding: 4px 0;
  }

  /* Pagination */
  .notes-pagination-bar {
    gap: 8px;
    margin-bottom: 45px;
  }

  .pagination-btn {
    min-height: 40px;
    padding: 8px 14px;
    font-size: 12px;
  }
}

/* =========================================================
   SMALL PHONES (< 480px)
========================================================= */
@media (max-width: 480px) {
  .notes-page-container {
    width: calc(100% - 20px);
  }

  .notes-page-title {
    font-size: 24px;
  }

  .category-tab {
    font-size: 11.5px;
    padding: 0 6px;
  }

  .notes-filter-card {
    padding: 14px;
  }

  .filter-input,
  .filter-select,
  .filter-submit-btn {
    height: 44px;
    min-height: 44px;
    font-size: 13.5px;
  }

  .note-card-item {
    padding: 15px;
  }

  .note-card-title {
    font-size: 16px;
  }

  .note-card-footer .author-identity-link span {
    max-width: 75px;
  }
}

/* =========================================================
   VERY SMALL PHONES (<= 360px down to 320px)
========================================================= */
@media (max-width: 360px) {
  .notes-page-container {
    width: calc(100% - 16px);
  }

  .notes-page-title {
    font-size: 21px;
    letter-spacing: -0.4px;
  }

  .notes-category-tabs {
    gap: 6px;
  }

  .category-tab {
    height: 42px;
    min-height: 42px;
    font-size: 11px;
    padding: 0 4px;
    gap: 4px;
  }

  .notes-filter-card {
    padding: 12px;
    border-radius: 14px;
  }

  .filter-input,
  .filter-select,
  .filter-submit-btn {
    height: 42px;
    min-height: 42px;
    font-size: 13px;
    border-radius: 8px;
  }

  .note-card-item {
    padding: 13px;
    border-radius: 14px;
  }

  .note-card-title {
    font-size: 15px;
  }

  .note-type-chip {
    font-size: 10px;
    padding: 2px 6px;
  }

  .note-stats-text {
    font-size: 10px;
  }

  .note-card-footer {
    padding-top: 10px;
  }

  .note-card-footer .author-identity-link span {
    max-width: 60px;
  }

  .note-view-link {
    font-size: 11.5px;
  }
}

/* =========================================================
   ADMIN PANEL — ACTION SHORTCUTS (DESKTOP & MOBILE PILLS)
========================================================= */
.admin-shortcuts-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.admin-shortcut-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.admin-shortcut-pill:hover {
  background: rgba(124, 58, 237, 0.15);
  border-color: rgba(168, 85, 247, 0.5);
  color: #FFFFFF;
}

/* Mobile & Small Screens (<= 768px down to 320px): STRICT 2-COLUMN COMPACT PILLS */
@media (max-width: 768px) {
  .admin-shortcuts-bar {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px !important;
    width: 100% !important;
    margin-top: 14px;
    box-sizing: border-box;
  }

  .admin-shortcut-pill {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    height: 40px !important;
    min-height: 40px !important;
    max-height: 44px !important;
    padding: 0 10px !important;
    border-radius: 9999px !important; /* Full pill shape */
    background: rgba(17, 22, 42, 0.8) !important;
    border: 1px solid rgba(168, 85, 247, 0.3) !important;
    color: #F1F5F9 !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    text-align: center !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    box-sizing: border-box !important;
    backdrop-filter: blur(10px);
    transition: all 0.2s ease;
  }

  .admin-shortcut-pill:hover,
  .admin-shortcut-pill:active {
    background: rgba(124, 58, 237, 0.25) !important;
    border-color: rgba(168, 85, 247, 0.7) !important;
    color: #FFFFFF !important;
  }
}

/* =========================================================
   EDIT RESOURCE PAGE — MEDIUM-SIZED SAVE CHANGES BUTTON
========================================================= */
.edit-resource-actions-group {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.edit-resource-save-btn {
  width: auto !important;
  min-width: 160px !important;
  max-width: 200px !important;
  height: 44px !important;
  padding: 0 22px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  border-radius: 10px !important;
  background: linear-gradient(135deg, #7C3AED 0%, #6366F1 100%) !important;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3) !important;
  border: 1px solid rgba(168, 85, 247, 0.4) !important;
  color: #FFFFFF !important;
  cursor: pointer !important;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
  white-space: nowrap !important;
}

.edit-resource-save-btn:hover {
  transform: translateY(-1px) !important;
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.45) !important;
  border-color: rgba(168, 85, 247, 0.7) !important;
}

.edit-resource-save-btn:focus-visible {
  outline: 2px solid #C084FC !important;
  outline-offset: 2px !important;
}

.edit-resource-cancel-btn {
  width: auto !important;
  height: 44px !important;
  padding: 0 20px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  border-radius: 10px !important;
  text-decoration: none !important;
  white-space: nowrap !important;
}

@media (max-width: 400px) {
  .edit-resource-actions-group {
    flex-direction: column;
    align-items: stretch;
  }
  .edit-resource-save-btn,
  .edit-resource-cancel-btn {
    width: 100% !important;
    max-width: 100% !important;
  }
}

/* =========================================================
   RESOURCE DETAIL PAGE — EDIT & DELETE MANAGEMENT ACTIONS
========================================================= */
.resource-detail-manage-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.resource-detail-delete-form {
  display: inline-flex;
  margin: 0;
  padding: 0;
}

.resource-detail-manage-btn {
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  appearance: none !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 7px !important;
  height: 40px !important;
  padding: 0 16px !important;
  border-radius: 9px !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  font-family: inherit !important;
  line-height: 1 !important;
  text-decoration: none !important;
  cursor: pointer !important;
  box-sizing: border-box !important;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
  outline: none !important;
  white-space: nowrap !important;
}

.resource-detail-manage-btn .btn-icon {
  font-size: 14px;
  line-height: 1;
  display: inline-block;
}

.resource-detail-edit-btn {
  background: rgba(124, 58, 237, 0.12) !important;
  border: 1px solid rgba(168, 85, 247, 0.35) !important;
  color: #C4B5FD !important;
}

.resource-detail-edit-btn:hover {
  background: rgba(124, 58, 237, 0.25) !important;
  border-color: rgba(168, 85, 247, 0.7) !important;
  color: #FFFFFF !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3) !important;
}

.resource-detail-edit-btn:focus-visible {
  outline: 2px solid #A855F7 !important;
  outline-offset: 2px !important;
}

.resource-detail-delete-btn {
  background: rgba(239, 68, 68, 0.1) !important;
  border: 1px solid rgba(239, 68, 68, 0.3) !important;
  color: #FCA5A5 !important;
}

.resource-detail-delete-btn:hover {
  background: rgba(239, 68, 68, 0.22) !important;
  border-color: rgba(239, 68, 68, 0.6) !important;
  color: #FFFFFF !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.3) !important;
}

.resource-detail-delete-btn:focus-visible {
  outline: 2px solid #EF4444 !important;
  outline-offset: 2px !important;
}

@media (max-width: 640px) {
  .header-badges-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .resource-detail-manage-actions {
    width: 100%;
    gap: 8px;
  }

  .resource-detail-manage-btn {
    flex: 1;
    min-width: 120px;
    height: 38px !important;
    padding: 0 12px !important;
    font-size: 12px !important;
  }
}

@media (max-width: 360px) {
  .resource-detail-manage-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .resource-detail-manage-btn {
    width: 100% !important;
  }
}