@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Default to Light Mode */
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --accent-blue: #0ea5e9;
  --accent-blue-hover: #0284c7;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --bg-card-rgb: 255, 255, 255;
}

[data-theme="dark"] {
  --bg-main: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --accent-blue: #38bdf8;
  --accent-blue-hover: #7dd3fc;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
  --bg-card-rgb: 30, 41, 59;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

html {
  overflow-x: hidden;
}




/* Search Page Styles */
.search-header {
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}
.search-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}
.filter-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 1rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.2s ease;
}
.filter-chip:hover, .filter-chip.active {
    background: var(--accent-blue);
    color: #fff;
    border-color: var(--accent-blue);
}
.search-result-item {
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease, border-color 0.2s ease;
}
.search-result-item:hover {
    transform: translateY(-2px);
    border-color: var(--accent-blue);
}
.result-type-badge {
    text-transform: uppercase;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
    display: block;
}
.search-summary-message {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-main);
}
/* ===== Progress Dashboard ===== */
.dashboard-hero {
    padding: 3rem 2.5rem;
    background: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    border-radius: 20px;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px -10px rgba(14, 165, 233, 0.35);
}
.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}
.stat-card {
    padding: 1.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
}
.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    display: block;
    line-height: 1.2;
}
.stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 0.25rem;
    display: block;
}
.analytics-section {
    margin-bottom: 3rem;
    padding: 2.5rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}
.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.card {
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 14px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.track-card-visual {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
.radial-progress-container {
    width: 70px;
    height: 70px;
    flex-shrink: 0;
}
.track-info {
    flex-grow: 1;
    min-width: 0;
}
.progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 99px;
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #0ea5e9, #6366f1);
    border-radius: 99px;
    transition: width 0.6s ease;
}
.danger-zone-dashboard {
    margin-top: 4rem;
    padding: 2.5rem;
    border: 2px dashed #ef4444;
    background: rgba(239, 68, 68, 0.04);
    border-radius: var(--radius);
}
.filter-bar {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin: 0;
}
.select-input {
    padding: 0.5rem 1.5rem 0.5rem 0.75rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}
.select-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}
.monthly-insight-card {
    padding: 2rem;
    background: var(--bg-main);
    border-radius: 14px;
    border: 1px solid var(--border-color);
}
@media (max-width: 768px) {
    .stat-grid {
        grid-template-columns: 1fr;
    }
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .dashboard-hero {
        padding: 2rem 1.5rem;
    }
    .analytics-section {
        padding: 1.5rem;
    }
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
  box-sizing: border-box;
}

/* Header */
.site-header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  transition: var(--transition);
}

.sticky-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background-color: rgba(var(--bg-card-rgb), 0.85);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
  padding: 0.6rem 0;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 1024px) {
  .header-inner {
    gap: 2rem;
  }
}

.header-left, .header-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header-center {
  flex-grow: 1;
  max-width: 600px;
}

.site-branding a {
  color: var(--text-main);
  text-decoration: none;
  font-size: 1.4rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: -0.02em;
}

.logo-icon {
  font-size: 1.6rem;
}

/* Desktop Navigation */
.desktop-only {
  display: none;
}

@media (min-width: 1024px) {
  .desktop-only {
    display: block;
  }
}

.nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
}

.nav-menu a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

.nav-menu a:hover {
  color: var(--accent-blue);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-blue);
  transition: var(--transition);
}

.nav-menu a:hover::after {
  width: 100%;
}

/* Header Search */
.header-search-form {
  width: 100%;
  display: none !important;
}

@media (min-width: 1024px) {
  .header-search-form {
    display: block !important;
  }
}

.search-input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  pointer-events: none;
}

.header-search-input {
  width: 100%;
  padding: 0.6rem 1rem 0.6rem 2.5rem;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 99px;
  color: var(--text-main);
  font-size: 0.9rem;
  transition: var(--transition);
}

.header-search-input:focus {
  outline: none;
  border-color: var(--accent-blue);
  background-color: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.header-search-submit {
  position: absolute;
  right: 0.4rem;
  background-color: var(--accent-blue);
  color: white;
  border: none;
  padding: 0.35rem 1rem;
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.header-search-submit:hover {
  background-color: var(--accent-blue-hover);
}

/* User Actions */
.user-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-main);
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent-blue);
}

.sun-icon { display: block; }
.moon-icon { display: none; }

[data-theme="dark"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }

.user-avatar-toggle {
  background: none;
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.75rem 0.25rem 0.25rem;
  border-radius: 99px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
}

.user-avatar-toggle:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent-blue);
}

.user-info-brief {
  display: none;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

@media (min-width: 1024px) {
  .user-info-brief {
    display: flex;
  }
}

.user-name-small {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

.premium-badge-xs {
  font-size: 0.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
  color: #fff;
  padding: 0.05rem 0.3rem;
  border-radius: 3px;
  text-transform: uppercase;
}

.btn-login {
  padding: 0.5rem 1.5rem;
  font-size: 0.9rem;
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

@media (min-width: 1024px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}
.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Overlay */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-card);
  z-index: 999;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  transform: translateX(100%);
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.mobile-nav-content {
  width: 100%;
  max-width: 400px;
  padding: 2rem;
  text-align: center;
}

.mobile-search {
  margin-bottom: 2rem;
}

.mobile-search-form {
  position: relative;
}

.mobile-search-form input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-main);
  color: var(--text-main);
}

.mobile-search-form button {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-site-navigation {
  margin-top: 2rem;
}

.mobile-site-navigation ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mobile-site-navigation a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
}

/* Base text */
a {
  color: var(--accent-blue);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
h1, h2, h3, h4 {
  margin-top: 0;
  color: var(--text-main);
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: var(--transition);
  display: block; 
  text-decoration: none !important;
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
}
.card:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-lg);
  background-color: var(--bg-card-hover);
  transform: translateY(-4px);
}
.card h2, .card h3 {
  color: var(--text-main);
  margin-bottom: 0.5rem;
}
.card p {
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-blue);
  color: #ffffff;
  padding: 0.6rem 1.25rem;
  border-radius: 9999px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid var(--accent-blue);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.btn:hover {
  background-color: var(--accent-blue-hover);
  border-color: var(--accent-blue-hover);
  color: #ffffff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-outline {
  background-color: transparent;
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}
.btn-outline:hover {
  background-color: var(--accent-blue);
  color: #ffffff;
}

/* Post Content */
.post-content {
  margin-bottom: 2rem;
}

/* Code Blocks */
pre, code {
  background-color: var(--bg-card);
  color: #e2e8f0;
  border-radius: var(--radius);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
pre {
  padding: 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--border-color);
}
code {
  padding: 0.2rem 0.4rem;
  font-size: 0.875em;
}
pre code {
  padding: 0;
  background-color: transparent;
}

/* Badges / Tags */
.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background-color: var(--border-color);
  color: var(--text-main);
  border-radius: 9999px;
  font-size: 0.75rem;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  text-decoration: none !important;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 1.5rem;
}
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 768px) {
  .grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* Utility Classes */
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-center { text-align: center; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-4 { margin-top: 1rem; }
.p-8 { padding: 2rem; }

/* Breadcrumbs */
.breadcrumbs {
  font-size: 0.875rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
}
.breadcrumbs a {
  color: var(--text-muted);
}
.breadcrumbs a:hover {
  color: var(--accent-blue);
}

/* Hero Section */
.hero {
  padding: 4rem 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-card);
}
.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* Section Wrapper */
.section {
    padding: 3rem 0;
}
@media (max-width: 768px) {
    .section {
        padding: 2rem 0;
    }
    .container {
        padding: 0 1.25rem;
    }
}

/* Pagination Styles */
.pagination-wrapper {
    margin-top: 4rem;
    display: flex;
    justify-content: center;
}

.pagination {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    align-items: center;
}

.pagination .nav-links {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 0.5rem;
    border-radius: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.pagination .page-numbers:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: var(--bg-card-hover);
}

.pagination .page-numbers.current {
    background: var(--accent-blue);
    color: #fff;
    border-color: var(--accent-blue);
}

.pagination .page-numbers.dots {
    border-color: transparent;
    background: transparent;
    cursor: default;
}

.pagination .prev, .pagination .next {
    font-weight: 700;
}

/* Progress Step UI (e.g. for topics) */
.step-list {
  list-style: none;
  padding: 0;
  position: relative;
  margin: 2rem 0;
}
.step-list::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1rem;
  width: 2px;
  background-color: var(--border-color);
}
.step-item {
  position: relative;
  padding-left: 3.5rem;
  margin-bottom: 2rem;
}
.step-marker {
  position: absolute;
  left: 0;
  top: 0;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background-color: var(--bg-card);
  border: 2px solid var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: var(--accent-blue);
  z-index: 1;
  font-size: 0.875rem;
}

/* Nested lists (lessons within topics) */
.lesson-list {
    list-style: none;
    padding: 1rem 0 0 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.lesson-list li {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
}
.lesson-list li:hover {
    border-color: var(--accent-blue);
}
.lesson-list a {
    display: block;
    color: var(--text-main);
    text-decoration: none;
}
.lesson-list a:hover {
    color: var(--accent-blue);
}

/* Sections in single lesson */
.lesson-section {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
}
.lesson-section h3 {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

/* Utility Classes */
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.my-8 { margin-top: 2rem; margin-bottom: 2rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }
.text-center { text-align: center; }

/* Footer */
.site-footer {
  margin-top: 4rem;
  padding: 2rem 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-muted);
}

/* Auth Forms & Profile */
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}
.form-control {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: var(--radius);
    transition: var(--transition);
    box-sizing: border-box;
}
.form-control:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2);
}
.w-100 {
    width: 100%;
}
.mx-auto {
    margin-left: auto;
    margin-right: auto;
}
.avatar-img {
    border-radius: 50%;
    border: 2px solid var(--bg-card);
    vertical-align: middle;
    transition: var(--transition);
}
.user-dropdown-container {
    position: relative;
    display: inline-block;
}
.user-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    width: 200px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    list-style: none;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    display: none;
    animation: fadeInDown 0.2s ease;
}
.user-dropdown-menu.active {
    display: block;
}
.user-dropdown-menu li a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
    font-weight: 500;
}
.user-dropdown-menu li a:hover {
    background-color: var(--bg-card-hover);
    color: var(--accent-blue);
}
.user-dropdown-menu .divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 0.5rem 0;
}
.user-dropdown-menu .logout-link {
    color: #ef4444;
}
.user-dropdown-menu .logout-link:hover {
    background-color: #fef2f2;
    color: #ef4444;
}
[data-theme="dark"] .user-dropdown-menu .logout-link:hover {
    background-color: #450a0a;
}
.dropdown-caret {
    font-size: 0.7rem;
    margin-left: 0.25rem;
    color: var(--text-muted);
    transition: var(--transition);
}
.user-dropdown-container .user-avatar-toggle:hover .dropdown-caret {
    color: var(--accent-blue);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Progress System */
.progress-wrapper {
    display: flex;
    flex-direction: column;
    min-width: 200px;
}
.progress-wrapper .flex {
    font-size: 0.85rem;
}
.progress-bar-container {
    background-color: var(--bg-card-hover);
    border-radius: 999px;
    height: 8px;
    width: 100%;
    overflow: hidden;
    border: 1px solid var(--border-color);
}
.progress-bar-container.large {
    height: 12px;
}
.progress-bar-fill {
    background-color: #22c55e;
    height: 100%;
    transition: width 0.5s ease;
}
.tick-icon {
    display: inline-block;
    margin-right: 0.5rem;
    font-size: 1rem;
    color: #22c55e;
}
.text-green-500 { color: #22c55e !important; }
.bg-green-500 { background-color: #22c55e !important; }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.inline-block { display: inline-block; }

/* Premium Badge */
.premium-badge {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 4px rgba(217, 119, 6, 0.3);
    margin-left: 0.5rem;
    vertical-align: middle;
}
.premium-badge-lg {
    font-size: 0.85rem;
    padding: 0.25rem 0.75rem;
}

/* Danger Zone */
.danger-zone {
    margin-top: 3rem;
    border: 1px solid #fee2e2;
    background-color: #fef2f2;
}
[data-theme="dark"] .danger-zone {
    background-color: #450a0a22;
    border-color: #ef444433;
}
.danger-zone h3 {
    color: #ef4444;
}
.btn-danger {
    background-color: #ef4444;
    border-color: #ef4444;
}
.btn-danger:hover {
    background-color: #dc2626;
    border-color: #dc2626;
}

/* Prominent Action Cards */
.prominent-action-card {
    background-color: var(--bg-card);
    border: 2px dashed var(--accent-blue);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    margin: 2rem 0;
}
.prominent-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}
.prominent-desc {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    position: relative;
    z-index: 1000;
}
.hamburger-line {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    transition: all 0.3s ease;
    background-color: var(--text-main);
    border-radius: 3px;
}
.header-right-wrapper {
    display: flex;
    align-items: center;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
  .mobile-menu-toggle {
      display: block;
      margin-left: auto;
  }
  .site-header {
      position: relative;
  }
  .header-right-wrapper {
      position: fixed;
      top: 0;
      right: -100%;
      width: 80%;
      max-width: 320px;
      height: 100vh;
      background-color: var(--bg-card);
      flex-direction: column;
      justify-content: center;
      align-items: center;
      transition: right 0.3s ease;
      box-shadow: -5px 0 15px rgba(0,0,0,0.1);
      z-index: 999;
      padding: 2rem;
  }
  .header-right-wrapper.nav-open {
      right: 0;
  }
  .site-navigation {
      flex-wrap: wrap;
      justify-content: center;
  }
  .site-navigation ul {
      flex-direction: column;
      text-align: center;
      gap: 2rem;
      margin-bottom: 2rem;
  }
  .site-navigation a {
      font-size: 1.25rem;
  }
  .user-auth-menu {
      flex-direction: column;
      margin-left: 0 !important;
      margin-top: 1rem;
      gap: 1.5rem;
  }
  #theme-toggle {
      margin-right: 0 !important;
  }

  /* Hamburger Animation */
  .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
      transform: rotate(-45deg) translate(-5px, 6px);
  }
  .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
      opacity: 0;
  }
  .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
      transform: rotate(45deg) translate(-5px, -6px);
  }
  
  body.no-scroll {
      overflow: hidden;
  }
  .hero h1 { font-size: 2rem; }
  .grid-cols-2, .grid-cols-3 {
    grid-template-columns: 1fr !important;
  }
  .step-item {
    padding-left: 2.5rem;
  }
  .step-list::before {
    left: 0.5rem;
  }
  .step-marker {
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.75rem;
  }
  .prominent-action-card {
    padding: 1.5rem 1rem;
  }
}

/* Book Slider */
.book-slider-section {
    margin-top: 4rem;
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
}
.book-slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}
.book-slider-header h2 {
    margin: 0;
}
.book-slider {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    padding-bottom: 1.5rem;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}
.book-slider::-webkit-scrollbar {
    height: 6px;
}
.book-slider::-webkit-scrollbar-track {
    background: var(--bg-main);
}
.book-slider::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}
.book-slider::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}
.book-item {
    flex: 0 0 200px;
    scroll-snap-align: start;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    text-decoration: none !important;
    color: inherit;
}
.book-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue);
}
.book-cover {
    width: 100%;
    aspect-ratio: 2/3;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
}
.book-info {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex-grow: 1;
}
.book-title {
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-main);
}
.book-author {
    font-size: 0.85rem;
    color: var(--text-muted);
}
.book-price {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-blue);
    margin-top: auto;
    padding-top: 0.5rem;
}

/* Single Book Layout */
.book-single-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}
@media (min-width: 768px) {
    .book-single-layout {
        grid-template-columns: 350px 1fr;
        gap: 4rem;
    }
}
.book-single-cover img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

/* Discussion System */
.comments-area {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}
.comments-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}
.comment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.custom-comment-item {
    margin-bottom: 2rem;
}
.comment-body {
    display: flex;
    gap: 1.5rem;
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}
.comment-avatar img {
    border-radius: 50%;
    width: 48px;
    height: 48px;
    object-fit: cover;
}
.comment-content-wrapper {
    flex: 1;
}
.comment-meta {
    margin-bottom: 0.5rem;
}
.comment-author {
    font-size: 1.1rem;
    color: var(--text-main);
    margin-right: 0.5rem;
    font-weight: bold;
}
.comment-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}
.comment-text {
    color: var(--text-main);
    line-height: 1.6;
}
.comment-text p {
    margin-bottom: 0.5rem;
    margin-top: 0;
}
.reply-action a {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    font-weight: bold;
    color: var(--accent-blue);
    text-transform: uppercase;
    text-decoration: none;
}
.comment-respond {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    margin-bottom: 3rem;
}
.comment-form textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-main);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-family: inherit;
    resize: vertical;
    box-sizing: border-box;
}
.comment-form textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
}
.children {
    list-style: none;
    padding-left: 3rem;
    margin-top: 2rem;
    border-left: 2px solid var(--border-color);
}
@media (max-width: 768px) {
    .comment-body {
        flex-direction: column;
        gap: 1rem;
    }
    .children {
        padding-left: 1.5rem;
    }
}

/* Tracks Archive Filters */
.filters-container {
    transition: var(--transition);
}

@media (max-width: 768px) {
    .filters-container > div {
        flex-direction: column;
        gap: 1.5rem !important;
    }
}