/* ====================================================
   VARIATION 3 — Combined Dashboard
   All styles scoped to .v3-page to prevent bleed.
   ==================================================== */

/* ===== CSS VARIABLES (light mode defaults) ===== */
.v3-page {
  --color-primary: #b30000;
  --color-primary-dark: #8f0000;
  --color-primary-light: #e02a2a;
  --color-bg: #efe2da;
  --color-bg-soft: #f7eee8;
  --color-card: #fffaf6;
  --color-card-muted: #f2e4dc;
  --color-text: #2a1815;
  --color-text-muted: #7a625c;
  --color-border: rgba(120, 40, 30, 0.14);
  --color-shadow: rgba(80, 30, 20, 0.14);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --section-gap: 72px;
  --container-width: 1180px;
}

/* Dark mode variables */
[data-theme="dark"] .v3-page {
  --color-primary: #d71920;
  --color-primary-dark: #a90f14;
  --color-primary-light: #ff4b4f;
  --color-bg: #120908;
  --color-bg-soft: #1a0d0c;
  --color-card: #241413;
  --color-card-muted: #2d1917;
  --color-card-soft: #35201d;
  --color-text: #fff7f2;
  --color-text-muted: #cdb5ad;
  --color-text-soft: #a98e86;
  --color-border: rgba(255, 90, 80, 0.16);
  --color-border-strong: rgba(255, 90, 80, 0.28);
  --color-shadow: rgba(0, 0, 0, 0.5);
}

/* ===== BASE ===== */
.v3-page {
  font-family: "Cairo", sans-serif;
  background:
    radial-gradient(
      circle at top right,
      rgba(179, 0, 0, 0.07),
      transparent 26%
    ),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-soft) 100%);
  color: var(--color-text);
  font-size: 16px;
  min-height: 100vh;
}
[data-theme="dark"] .v3-page {
  background:
    radial-gradient(
      circle at top right,
      rgba(120, 20, 20, 0.18),
      transparent 34%
    ),
    linear-gradient(180deg, #120908 0%, #1a0d0c 45%, #100706 100%);
}
.v3-page a {
  text-decoration: none;
  color: inherit;
  transition: 0.22s ease;
}
.v3-page *,
.v3-page *::before,
.v3-page *::after {
  box-sizing: border-box;
}
.v3-page .container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}
.v3-page img {
  max-width: 100%;
}

/* ===== SHARED UTILITIES ===== */
.v3-eyebrow {
  display: inline-flex;
  padding: 0.32rem 0.75rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.82rem;
}
.v3-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.78rem;
}
.v3-badge.free {
  background: color-mix(in srgb, #1e9c4a 14%, transparent);
  color: #1e9c4a;
}
.v3-badge.warn {
  background: color-mix(in srgb, #d19b00 16%, transparent);
  color: #8a6400;
}
.v3-badge.lock {
  background: rgba(150, 150, 150, 0.15);
  color: #888;
}
.v3-muted {
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

/* Buttons */
.v3-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 0.72rem 1.3rem;
  cursor: pointer;
  transition: 0.22s ease;
  border: none;
  font-family: inherit;
}
.v3-btn-primary {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  color: #fff;
  box-shadow: 0 10px 24px
    color-mix(in srgb, var(--color-primary) 28%, transparent);
}
.v3-btn-primary:hover {
  transform: translateY(-2px);
  color: #fff;
}
.v3-btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-card) 70%, transparent);
}
.v3-btn-outline:hover {
  transform: translateY(-1px);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.v3-btn-ghost {
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-card) 55%, transparent);
  color: var(--color-text);
}
.v3-btn-ghost:hover {
  transform: translateY(-1px);
}
.v3-btn-sm {
  padding: 0.48rem 0.9rem;
  font-size: 0.82rem;
}

/* Progress */
.v3-progress-track {
  height: 8px;
  border-radius: 999px;
  background: color-mix(
    in srgb,
    var(--color-card-muted) 80%,
    var(--color-border)
  );
  overflow: hidden;
}
[data-theme="dark"] .v3-progress-track {
  background: rgba(255, 255, 255, 0.1);
}
.v3-progress-fill {
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-light)
  );
  border-radius: 999px;
  transition: width 0.6s ease;
}

/* Section Layout */
.v3-section {
  padding: var(--section-gap) 0;
}
.v3-section-sm {
  padding: 48px 0;
}
.v3-section-head {
  margin-bottom: 28px;
}
.v3-section-head h2 {
  font-size: clamp(1.6rem, 2.4vw, 2.4rem);
  line-height: 1.3;
  font-weight: 800;
  color: var(--color-text);
  margin: 0 0 4px;
}
.v3-section-head .v3-eyebrow {
  margin-bottom: 8px;
  display: block;
}

/* Animate on scroll */
[data-v3-animate] {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.55s ease,
    transform 0.55s ease;
}
[data-v3-animate].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ====================================================
   NAVBAR
   ==================================================== */
.v3-page .site-header {
  backdrop-filter: blur(16px);
}
.v3-page .site-header.nav-scrolled {
  box-shadow: 0 6px 24px var(--color-shadow);
}
.v3-page .navbar {
  background: color-mix(in srgb, var(--color-card) 88%, transparent);
  border-bottom: 1px solid var(--color-border);
}
[data-theme="dark"] .v3-page .navbar {
  background: rgba(36, 20, 19, 0.96);
  border-bottom-color: rgba(255, 90, 80, 0.14);
}
.v3-page .navbar-shell {
  display: flex;
  direction: ltr;
  min-height: 80px;
  padding: 14px 0;
  gap: 1rem;
  align-items: center;
}
.v3-page .navbar-shell > * {
  direction: rtl;
}
.v3-page .brand-block {
  flex: 0 0 auto;
  margin-inline-end: 2.5rem;
}
.v3-page .brand-block strong {
  font-size: 1.1rem;
  line-height: 1.1;
}
.v3-page .brand-block small {
  font-size: 0.82rem;
  line-height: 1;
}
.v3-page .main-nav {
  flex: 1 1 auto;
  min-width: 0;
}
.v3-page .main-nav-list {
  gap: 0.8rem 1.2rem;
  justify-content: center;
  align-items: center;
  flex-wrap: nowrap;
  white-space: nowrap;
}
.v3-page .main-nav-list .nav-link {
  font-size: 0.94rem;
  padding: 0.56rem 0.88rem !important;
}
.v3-page .nav-actions {
  flex: 0 0 auto;
  gap: 0.65rem;
  align-items: center;
}
.v3-page .navbar-brand,
.v3-page .nav-link {
  color: var(--color-text-muted);
}
.v3-page .nav-link {
  border-radius: 999px;
  padding: 0.56rem 0.95rem !important;
  transition: 0.22s ease;
}
.v3-page .nav-link.active,
.v3-page .nav-link:hover {
  color: var(--color-primary) !important;
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
}
.v3-page .brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 13px;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-light)
  );
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  box-shadow: 0 8px 20px var(--color-shadow);
}
.v3-page .student-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-light)
  );
  color: #fff;
  font-weight: 800;
  font-size: 0.92rem;
}
.v3-page .student-menu-btn {
  padding: 0.46rem 0.78rem;
  border-radius: 999px;
}
.v3-page .student-meta {
  line-height: 1.05;
}
.v3-page .student-meta strong {
  font-size: 0.94rem;
}
.v3-page .student-meta small {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}
.v3-page .theme-toggle {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.v3-page .nav-cta {
  padding: 0.65rem 1.1rem;
  font-size: 0.9rem;
}
.v3-page .navbar .dropdown-menu {
  border: 1px solid var(--color-border);
  background: var(--color-card);
  border-radius: 18px;
  box-shadow: 0 14px 36px var(--color-shadow);
  padding: 0.45rem;
  min-width: 210px;
}
[data-theme="dark"] .v3-page .navbar .dropdown-menu {
  background: #241413;
  border-color: rgba(255, 90, 80, 0.18);
}
.v3-page .navbar .dropdown-item {
  border-radius: 10px;
  padding: 0.6rem 0.75rem;
  color: var(--color-text);
  font-size: 0.88rem;
}
.v3-page .navbar .dropdown-item:hover {
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  color: var(--color-primary);
}
[data-theme="dark"] .v3-page .navbar .dropdown-item:hover {
  background: #35201d;
}
.v3-page .navbar .dropdown-item-danger {
  color: #dc3545;
}
.v3-page .navbar .dropdown-item-danger:hover {
  background: rgba(220, 53, 69, 0.09);
  color: #c0392b;
}
.v3-page .navbar .dropdown-divider {
  border-color: var(--color-border);
}
.v3-page .navbar-toggler {
  border-color: var(--color-border);
}
.v3-page .nav-mobile-actions {
  padding: 12px 0 4px;
}

/* shared btn classes for Bootstrap components inside v3 */
.v3-page .btn {
  border-radius: 999px;
  font-weight: 700;
  padding: 0.7rem 1.2rem;
}
.v3-page .btn-primary {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  color: #fff;
  border: 0;
  box-shadow: 0 10px 24px
    color-mix(in srgb, var(--color-primary) 28%, transparent);
}
.v3-page .btn-primary:hover {
  transform: translateY(-1px);
  color: #fff;
}
.v3-page .btn-outline-secondary,
.v3-page .btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-card) 70%, transparent);
}
.v3-page .btn-outline-secondary:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.v3-page .btn-ghost {
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-card) 55%, transparent);
  color: var(--color-text);
}
.v3-page .btn-primary-soft {
  color: var(--color-primary);
  border: 1px solid color-mix(in srgb, var(--color-primary) 22%, transparent);
  background: color-mix(in srgb, var(--color-primary) 8%, transparent);
}
.v3-page .btn-primary-soft:hover {
  background: color-mix(in srgb, var(--color-primary) 14%, transparent);
  color: var(--color-primary);
}
.v3-page .btn-sm {
  padding: 0.46rem 0.88rem;
  font-size: 0.82rem;
}

/* ====================================================
   SECTION 2 — HERO (Variation 1 style)
   ==================================================== */
.v3-hero {
  padding: var(--section-gap) 0;
}
.v3-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.v3-hero-left {
  order: 1;
}
.v3-hero-right {
  order: 2;
  position: relative;
}

.v3-hero-title {
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1.2;
  font-weight: 800;
  color: var(--color-text);
  margin: 10px 0 14px;
}
.v3-hero-subtitle {
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: 28px;
}
.v3-hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

/* Hero visual / student card */
.v3-hero-visual {
  min-height: 520px;
  position: relative;
  display: grid;
  place-items: center;
}
.v3-student-card {
  width: min(100%, 420px);
  background: color-mix(in srgb, var(--color-card) 90%, transparent);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 60px var(--color-shadow);
  padding: 28px;
  animation: v3float 6s ease-in-out infinite;
}
[data-theme="dark"] .v3-student-card {
  background: linear-gradient(135deg, #351312 0%, #241413 100%);
  border-color: rgba(255, 80, 70, 0.2);
}
@keyframes v3float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.v3-student-card-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-light)
  );
  color: #fff;
  font-size: 1.8rem;
  font-weight: 800;
}
.v3-student-card-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-text);
  text-align: center;
}
.v3-student-card-grade {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}
.v3-study-step {
  padding: 10px 13px;
  border-radius: 13px;
  background: var(--color-card-muted);
  margin-bottom: 10px;
  font-size: 0.85rem;
  color: var(--color-text);
}
[data-theme="dark"] .v3-study-step {
  background: var(--color-card-muted);
}

/* Floating mini cards */
.v3-float-card {
  position: absolute;
  z-index: 2;
  padding: 14px 16px;
  width: min(86%, 220px);
  border-radius: 18px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  box-shadow: 0 16px 40px var(--color-shadow);
}
[data-theme="dark"] .v3-float-card {
  background: #2d1917;
  border-color: rgba(255, 90, 80, 0.18);
}
.v3-float-card-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}
.v3-float-card-value {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-text);
}
.v3-float-top {
  top: 20px;
  right: -10px;
}
.v3-float-bottom {
  bottom: 20px;
  left: -10px;
}
.v3-float-mid {
  top: 50%;
  right: -20px;
  transform: translateY(-50%);
}
.v3-avatar-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-light)
  );
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.85rem;
}

/* ====================================================
   HERO STATS (4 cards, bigger)
   ==================================================== */
.v3-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 36px;
}
.v3-stat-card {
  background: color-mix(in srgb, var(--color-card) 92%, transparent);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  box-shadow: 0 6px 20px var(--color-shadow);
  display: flex;
  align-items: center;
  gap: 14px;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease;
}
.v3-stat-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px var(--color-shadow);
}
[data-theme="dark"] .v3-stat-card {
  background: #2d1917;
  border-color: rgba(255, 90, 80, 0.16);
}
.v3-stat-icon {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
  font-size: 1.15rem;
}
.v3-stat-value {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}
.v3-stat-label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 3px;
}

/* ====================================================
   SECTION 3 — CONTINUE LEARNING (Variation 2 style)
   ==================================================== */
.v3-continue-card {
  background: var(--color-card);
  border: 1px solid color-mix(in srgb, var(--color-primary) 20%, transparent);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: 0 6px 28px var(--color-shadow);
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] .v3-continue-card {
  background: linear-gradient(135deg, #2d1614 0%, #1e0d0c 100%);
  border-color: rgba(255, 80, 70, 0.22);
}
.v3-continue-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 5px;
  background: linear-gradient(
    180deg,
    var(--color-primary),
    var(--color-primary-light)
  );
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
}
.v3-continue-title {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 4px;
}
.v3-continue-meta {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}
.v3-progress-pct {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--color-primary);
}

/* Mini stats inside continue section */
.v3-mini-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.v3-mini-stat {
  background: var(--color-card-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  text-align: center;
}
[data-theme="dark"] .v3-mini-stat {
  background: #2d1917;
  border-color: rgba(255, 90, 80, 0.12);
}
.v3-mini-stat-value {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}
.v3-mini-stat-label {
  font-size: 0.74rem;
  color: var(--color-text-muted);
  margin-top: 3px;
}

/* Next lecture card */
.v3-panel {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 4px 20px var(--color-shadow);
}
[data-theme="dark"] .v3-panel {
  background: #241413;
  border-color: rgba(255, 90, 80, 0.14);
}
.v3-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}
.v3-panel-title {
  font-weight: 800;
  font-size: 0.96rem;
  color: var(--color-text);
  margin: 0;
}

/* ====================================================
   SECTION 4 — QUICK ACCESS (Variation 2 style)
   ==================================================== */
.v3-quick-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.v3-quick-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  box-shadow: 0 2px 14px var(--color-shadow);
  text-decoration: none;
  color: inherit;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
}
.v3-quick-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px var(--color-shadow);
  border-color: color-mix(in srgb, var(--color-primary) 28%, transparent);
  color: var(--color-text);
}
[data-theme="dark"] .v3-quick-card {
  background: #2d1917;
  border-color: rgba(255, 90, 80, 0.16);
}
[data-theme="dark"] .v3-quick-card:hover {
  background: #35201d;
}
.v3-quick-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  font-size: 1.2rem;
  color: var(--color-primary);
}
.v3-quick-label {
  font-weight: 800;
  font-size: 0.88rem;
  color: var(--color-text);
}
.v3-quick-status {
  font-size: 0.74rem;
  color: var(--color-text-muted);
}
.v3-quick-arrow {
  font-size: 0.68rem;
  color: var(--color-primary);
  margin-top: auto;
}

/* ====================================================
   SECTION 5 — STUDY PLAN + TEACHER MSG (Variation 2 style)
   ==================================================== */
.v3-two-col {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  align-items: start;
}

/* Unit cards */
.v3-unit-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.v3-unit-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: 0 2px 12px var(--color-shadow);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
  transition: border-color 0.22s ease;
}
.v3-unit-card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 28%, transparent);
}
[data-theme="dark"] .v3-unit-card {
  background: #241413;
  border-color: rgba(255, 90, 80, 0.14);
}
.v3-unit-card.is-active {
  border-color: color-mix(in srgb, var(--color-primary) 36%, transparent);
  background: color-mix(in srgb, var(--color-primary) 4%, var(--color-card));
}
[data-theme="dark"] .v3-unit-card.is-active {
  background: #2a1513;
  border-color: rgba(255, 75, 79, 0.3);
}
.v3-unit-card.is-locked {
  opacity: 0.62;
}
.v3-unit-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--color-text);
  margin-bottom: 2px;
}
.v3-unit-desc {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}
.v3-unit-pct {
  font-weight: 800;
  font-size: 0.92rem;
  color: var(--color-primary);
  white-space: nowrap;
}

/* Teacher message */
.v3-teacher-msg {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-primary) 8%, var(--color-card)),
    var(--color-card)
  );
  border: 1px solid color-mix(in srgb, var(--color-primary) 18%, transparent);
  border-radius: var(--radius-lg);
  padding: 20px;
}
[data-theme="dark"] .v3-teacher-msg {
  background: linear-gradient(135deg, #2a1412, #1c0e0d);
  border-color: rgba(255, 80, 70, 0.2);
}
.v3-teacher-avatar {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-light)
  );
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 800;
  flex-shrink: 0;
}
.v3-teacher-msg-text {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.65;
}

/* ====================================================
   SECTION 6 — RECOMMENDED (Variation 2 style)
   ==================================================== */
.v3-rec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.v3-rec-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 2px 14px var(--color-shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
  height: 100%;
}
.v3-rec-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px var(--color-shadow);
  border-color: color-mix(in srgb, var(--color-primary) 26%, transparent);
}
[data-theme="dark"] .v3-rec-card {
  background: #241413;
  border-color: rgba(255, 90, 80, 0.14);
}
[data-theme="dark"] .v3-rec-card:hover {
  background: #2d1917;
}
.v3-rec-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  color: var(--color-primary);
  font-size: 1rem;
  margin-bottom: 2px;
}
.v3-rec-title {
  font-weight: 800;
  font-size: 0.92rem;
  color: var(--color-text);
}
.v3-rec-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  flex: 1;
}

/* ====================================================
   SECTION 7 — UPCOMING LECTURES (Variation 1 style)
   ==================================================== */
.v3-lectures-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.v3-lecture-card {
  background: color-mix(in srgb, var(--color-card) 92%, transparent);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: 0 8px 28px var(--color-shadow);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}
.v3-lecture-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px var(--color-shadow);
  border-color: color-mix(in srgb, var(--color-primary) 24%, transparent);
}
[data-theme="dark"] .v3-lecture-card {
  background: #241413;
  border-color: rgba(255, 90, 80, 0.14);
}
[data-theme="dark"] .v3-lecture-card:hover {
  background: #2d1917;
}
.v3-lecture-title {
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  font-weight: 700;
  color: var(--color-text);
  margin: 6px 0 2px;
}
.v3-lecture-time {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}
.v3-lecture-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  flex: 1;
}
.v3-lecture-ctas {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 12px;
}

/* ====================================================
   SECTION 8 — QUICK RECOMMENDATIONS (Variation 1 style)
   ==================================================== */
.v3-tips-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.v3-tip-card {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-primary) 6%, var(--color-card)),
    var(--color-card)
  );
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: 0 4px 16px var(--color-shadow);
  transition: transform 0.22s ease;
}
.v3-tip-card:hover {
  transform: translateY(-3px);
}
[data-theme="dark"] .v3-tip-card {
  background: linear-gradient(135deg, #2a1412, #1c0e0d);
  border-color: rgba(255, 80, 70, 0.14);
}
.v3-tip-icon {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.v3-tip-text {
  font-size: 0.88rem;
  color: var(--color-text);
  line-height: 1.6;
}

/* ====================================================
   SECTION 9 — BOOKS (Variation 2 style)
   ==================================================== */
.v3-books-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.v3-book-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: 0 2px 14px var(--color-shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease;
}
.v3-book-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px var(--color-shadow);
}
[data-theme="dark"] .v3-book-card {
  background: #241413;
  border-color: rgba(255, 90, 80, 0.14);
}
[data-theme="dark"] .v3-book-card:hover {
  background: #2d1917;
}
.v3-book-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  color: var(--color-primary);
  font-size: 1.15rem;
}
.v3-book-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-text);
}
.v3-book-meta {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}
.v3-book-price {
  font-weight: 800;
  font-size: 0.92rem;
  color: var(--color-primary);
}

/* ====================================================
   FOOTER
   ==================================================== */
.v3-footer {
  padding: 36px 0 20px;
  border-top: 1px solid var(--color-border);
  margin-top: 20px;
}
.v3-footer a {
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 8px;
  font-size: 0.88rem;
  transition: color 0.2s;
}
.v3-footer a:hover {
  color: var(--color-primary);
}
.v3-footer-bottom {
  padding-top: 18px;
  margin-top: 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.v3-version-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
}
.v3-version-btn {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: 0.2s ease;
  text-decoration: none;
}
.v3-version-btn:hover,
.v3-version-btn.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 8%, transparent);
}
.v3-version-btn.active {
  pointer-events: none;
}

/* ====================================================
   RESPONSIVE
   ==================================================== */
@media (max-width: 1100px) {
  .v3-quick-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .v3-lectures-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .v3-two-col {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 991.98px) {
  :root {
    --section-gap: 52px;
  }
  .v3-hero-inner {
    grid-template-columns: 1fr;
  }
  .v3-hero-right {
    order: 1;
  }
  .v3-hero-left {
    order: 2;
  }
  .v3-hero-visual {
    min-height: 380px;
  }
  .v3-float-top {
    top: 10px;
    right: 0;
  }
  .v3-float-bottom {
    bottom: 10px;
    left: 0;
  }
  .v3-float-mid {
    display: none;
  }
  .v3-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .v3-rec-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .v3-tips-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .v3-books-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .v3-mini-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .v3-page .navbar-shell {
    padding: 10px 0;
  }
}
@media (max-width: 767.98px) {
  .v3-quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .v3-lectures-grid {
    grid-template-columns: 1fr;
  }
  .v3-hero-ctas {
    flex-direction: column;
  }
  .v3-hero-ctas .v3-btn {
    width: 100%;
    justify-content: center;
  }
  .v3-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .v3-section-head h2 {
    font-size: 1.55rem;
  }
  .v3-page .brand-block strong {
    font-size: 1rem;
  }
  .v3-page .brand-block small {
    font-size: 0.78rem;
  }
}
@media (max-width: 480px) {
  .v3-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .v3-rec-grid {
    grid-template-columns: 1fr;
  }
  .v3-tips-grid {
    grid-template-columns: 1fr;
  }
  .v3-books-grid {
    grid-template-columns: 1fr;
  }
  .v3-mini-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .v3-quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========================================================
   ALIASES / EXTRA CLASSES used in index.html
   ======================================================== */

/* Continue learning layout */
.v3-continue-wrap {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 18px;
  align-items: start;
}
@media (max-width: 900px) {
  .v3-continue-wrap { grid-template-columns: 1fr; }
}
.v3-continue-main,
.v3-continue-next {
  /* inherits from .v3-panel */
}
.v3-continue-main { position: relative; }
.v3-continue-main::before {
  content: "";
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 5px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
}

/* Mini stats bar alias */
.v3-mini-stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 12px;
}
@media (max-width: 768px) {
  .v3-mini-stats-bar { grid-template-columns: repeat(2, 1fr); }
}
/* re-use .v3-mini-stat styles — already defined above */

/* Upcoming lectures grid */
.v3-lecture-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}
.v3-lecture-desc {
  font-size: .82rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}
.v3-lecture-time {
  font-size: .82rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}
.v3-lecture-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text);
  margin-top: 6px;
}
.v3-lecture-ctas {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

/* footer-copy alias */
.v3-footer-copy {
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
  margin-top: 24px;
  text-align: center;
  font-size: .82rem;
  color: var(--color-text-muted);
}

/* teacher avatar */
.v3-teacher-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem;
  flex-shrink: 0;
}

/* card-label / card-title inside panels */
.v3-card-label {
  font-size: .8rem;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.v3-card-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--color-text);
  margin-top: 2px;
}

/* ==============================================================
   FIX: SECTION LAYOUT ALIASES
   ============================================================== */
.v3-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.v3-section-title {
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  font-weight: 800;
  color: var(--color-text);
  margin: 0;
  line-height: 1.3;
}
.v3-section-alt {
  background: color-mix(in srgb, var(--color-card-muted) 35%, transparent);
}
[data-theme="dark"] .v3-section-alt {
  background: rgba(255, 255, 255, 0.025);
}

/* ==============================================================
   FIX: NAVBAR BRAND (v3-brand / v3-logo / v3-brand-text)
   ============================================================== */
.v3-page a.v3-brand,
.v3-page .navbar-brand.v3-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
  width: auto;
  max-width: max-content;
  white-space: nowrap;
  text-decoration: none;
  padding: 0;
  color: inherit;
}
.v3-page .v3-logo {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.05rem;
  box-shadow: 0 6px 18px var(--color-shadow);
  flex-shrink: 0;
}
.v3-page .v3-logo-sm {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 9px;
  font-size: 0.82rem;
}
.v3-page .v3-brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.3;
  min-width: 0;
}
.v3-page .v3-brand-name {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-text);
  display: block;
  white-space: nowrap;
}
.v3-page .v3-brand-sub {
  font-size: 0.74rem;
  color: var(--color-text-muted);
  display: block;
  white-space: nowrap;
}

/* ==============================================================
   FIX: STUDENT DROPDOWN BUTTON (v3-student-btn)
   ============================================================== */
.v3-page .v3-student-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 46px;
  padding: 5px 12px 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-card) 90%, transparent);
  color: var(--color-text);
  white-space: nowrap;
  box-shadow: 0 4px 14px var(--color-shadow);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.88rem;
  transition: border-color 0.22s ease, box-shadow 0.22s ease;
  outline: none;
}
.v3-page .v3-student-btn:hover,
.v3-page .v3-student-btn[aria-expanded="true"] {
  border-color: color-mix(in srgb, var(--color-primary) 32%, transparent);
  box-shadow: 0 8px 24px var(--color-shadow);
}
.v3-page .v3-student-btn.dropdown-toggle::after {
  margin-inline-start: 2px;
  opacity: 0.5;
  transform: scale(0.9);
}
[data-theme="dark"] .v3-page .v3-student-btn {
  background: rgba(36, 20, 19, 0.95);
  border-color: rgba(255, 90, 80, 0.22);
}

/* ==============================================================
   FIX: AVATAR CIRCLE (v3-avatar / v3-avatar-lg)
   ============================================================== */
.v3-page .v3-avatar {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  line-height: 1;
  flex-shrink: 0;
}
.v3-page .v3-avatar-lg {
  width: 62px;
  height: 62px;
  flex: 0 0 62px;
  font-size: 1.55rem;
}

/* ==============================================================
   FIX: STUDENT INFO (v3-student-info / v3-student-name / v3-student-grade)
   ============================================================== */
.v3-page .v3-student-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.3;
  text-align: right;
  min-width: 0;
}
.v3-page .v3-student-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
}
.v3-page .v3-student-grade {
  font-size: 0.74rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ==============================================================
   FIX: ICON BUTTON (v3-icon-btn, theme toggle)
   ============================================================== */
.v3-page .v3-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-card) 70%, transparent);
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
  transition: background 0.22s ease, color 0.22s ease;
  outline: none;
}
.v3-page .v3-icon-btn:hover {
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  color: var(--color-primary);
}

/* ==============================================================
   FIX: HERO STUDENT CARD INTERNAL STRUCTURE
   ============================================================== */
.v3-page .v3-student-card-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}
.v3-page .v3-student-card-top .v3-student-card-name {
  text-align: right;
  margin-bottom: 2px;
  font-size: 1.05rem;
}
.v3-page .v3-student-card-top .v3-student-card-grade {
  text-align: right;
  margin-bottom: 6px;
  font-size: 0.82rem;
}
.v3-page .v3-student-card-body {
  /* layout wrapper — no extra decoration */
}
.v3-page .v3-student-card-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--color-card-muted);
  font-size: 0.83rem;
  color: var(--color-text);
  margin-top: 8px;
  line-height: 1.45;
}
.v3-page .v3-student-card-row i {
  flex-shrink: 0;
  margin-top: 2px;
}
[data-theme="dark"] .v3-page .v3-student-card-row {
  background: rgba(255, 255, 255, 0.05);
}

/* ==============================================================
   FIX: FLOATING CARD POSITIONS (top-right / top-left / bottom-left)
   ============================================================== */
.v3-float-card.top-right {
  top: 14px;
  right: -8px;
  font-size: 0.82rem;
}
.v3-float-card.top-left {
  top: 60px;
  left: -8px;
  font-size: 0.82rem;
}
.v3-float-card.bottom-left {
  bottom: 16px;
  left: -8px;
  font-size: 0.82rem;
}
/* On smaller desktops: hide left float cards to prevent covering card */
@media (max-width: 1199.98px) {
  .v3-float-card.top-left,
  .v3-float-card.bottom-left {
    display: none;
  }
}
/* On mobile: hide all floating cards */
@media (max-width: 991.98px) {
  .v3-float-card.top-right,
  .v3-float-card.top-left,
  .v3-float-card.bottom-left {
    display: none;
  }
}