/* ═══════════════════════════════════════════════════════════════
   DiplomaStudy - Civil 1st Semester Styles
   Complete Stylesheet (Home + Subjects + Detail + Modal + More)
   ═══════════════════════════════════════════════════════════════ */


/* ═══════════════════════════════════════════════════════════════
   1. HOME HERO BANNER (Premium)
   ═══════════════════════════════════════════════════════════════ */
.home-hero {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  margin-bottom: 16px;
  box-shadow: 0 10px 28px rgba(28, 62, 44, 0.25);
  background: linear-gradient(135deg, #1C3E2C 0%, #2A5540 50%, #1C3E2C 100%);
}

.home-hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.06) 0%, transparent 35%),
    radial-gradient(circle at 50% 100%, rgba(200, 122, 30, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.home-hero-bg-pattern::after {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  border: 2px solid rgba(255, 255, 255, 0.06);
  border-radius: 50%;
}

.home-hero-content {
  position: relative;
  padding: 22px 20px 20px;
  color: #FFFFFF;
}

.home-greeting {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  opacity: 0.9;
  margin-bottom: 14px;
  font-weight: 500;
}

.home-greeting-emoji {
  font-size: 14px;
}

.home-hero-title-box {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.home-hero-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  flex-shrink: 0;
}

.home-hero-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.4px;
  line-height: 1.15;
  margin-bottom: 3px;
}

.home-hero-subtitle {
  font-size: 12px;
  opacity: 0.85;
  font-weight: 500;
}

.home-hero-stats {
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 12px 8px;
  margin-bottom: 16px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  gap: 2px;
}

.hero-stat-value {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.hero-stat-label {
  font-size: 10px;
  opacity: 0.75;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.hero-stat-divider {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.15);
}

.hero-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 20px;
  background: #FFFFFF;
  color: var(--color-forest);
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.hero-cta-btn:active {
  transform: scale(0.98);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}


/* ═══════════════════════════════════════════════════════════════
   2. DAILY TIP CARD
   ═══════════════════════════════════════════════════════════════ */
.daily-tip-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
  border: 1px solid #FCD34D;
  border-radius: 16px;
  padding: 14px;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(200, 122, 30, 0.12);
}

.tip-icon-box {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.tip-content {
  flex: 1;
  min-width: 0;
}

.tip-label {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #92400E;
  background: rgba(255, 255, 255, 0.6);
  padding: 2px 8px;
  border-radius: 6px;
  margin-bottom: 6px;
}

.tip-text {
  font-size: 13px;
  color: #78350F;
  line-height: 1.5;
  font-weight: 600;
}


/* ═══════════════════════════════════════════════════════════════
   3. SECTION HEADER (Home)
   ═══════════════════════════════════════════════════════════════ */
.home-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 22px 0 14px;
}

.home-section-title-box {
  display: flex;
  align-items: center;
  gap: 8px;
}

.home-section-icon {
  font-size: 18px;
  line-height: 1;
}

.home-section-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.3px;
}

.home-section-count {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 4px 10px;
  border-radius: 999px;
}


/* ═══════════════════════════════════════════════════════════════
   4. SUBJECT CARDS GRID (Home - Premium)
   ═══════════════════════════════════════════════════════════════ */
.subject-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.subject-card-pro {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 14px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 2px 6px rgba(28, 62, 44, 0.04);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 148px;
}

.subj-pro-glow {
  position: absolute;
  top: -30px;
  right: -30px;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, var(--color-forest-soft) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.subject-card-pro:hover .subj-pro-glow {
  opacity: 1;
}

.subject-card-pro:active {
  transform: scale(0.97);
  border-color: var(--color-forest);
  box-shadow: 0 4px 14px rgba(28, 62, 44, 0.12);
}

.subject-card-pro:hover {
  border-color: var(--color-sage);
  box-shadow: 0 6px 18px rgba(28, 62, 44, 0.1);
  transform: translateY(-2px);
}

.subj-pro-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.subj-pro-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-forest-soft), var(--color-sage-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.subj-pro-code {
  font-size: 10px;
  font-weight: 700;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  background: var(--color-surface-hover);
  padding: 3px 7px;
  border-radius: 6px;
  letter-spacing: 0.3px;
}

.subj-pro-body {
  flex: 1;
  min-width: 0;
}

.subj-pro-name {
  font-size: 14px;
  font-weight: 800;
  color: var(--color-forest);
  line-height: 1.25;
  margin-bottom: 3px;
  letter-spacing: -0.2px;
}

.subj-pro-bangla {
  font-size: 11px;
  color: var(--color-text-muted);
  line-height: 1.3;
  font-weight: 500;
}

.subj-pro-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 8px;
  border-top: 1px dashed var(--color-border);
}

.subj-pro-badges {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.pro-badge {
  font-size: 9px;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 5px;
  background: var(--color-forest-soft);
  color: var(--color-forest);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.pro-badge-credits {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.subj-pro-arrow {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-forest);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.subject-card-pro:hover .subj-pro-arrow {
  transform: translateX(3px);
}

.subj-pro-tap-hint {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  font-size: 9px;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--color-forest);
  padding: 3px 8px;
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.subject-card-pro:active .subj-pro-tap-hint {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}


/* ═══════════════════════════════════════════════════════════════
   5. QUICK ACCESS GRID (Home)
   ═══════════════════════════════════════════════════════════════ */
.quick-access-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.quick-access-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 14px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 6px rgba(28, 62, 44, 0.04);
}

.quick-access-card:active {
  transform: scale(0.95);
  background: var(--color-surface-hover);
  border-color: var(--color-forest);
}

.quick-access-card:hover {
  border-color: var(--color-sage);
  box-shadow: 0 4px 12px rgba(28, 62, 44, 0.08);
  transform: translateY(-2px);
}

.qa-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--color-forest-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 2px;
}

.qa-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-forest);
  line-height: 1.1;
  text-align: center;
}

.qa-bangla {
  font-size: 9px;
  color: var(--color-text-muted);
  font-weight: 500;
}

.qa-lock {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 10px;
  opacity: 0.7;
}


/* ═══════════════════════════════════════════════════════════════
   6. COMING SOON LIST (Home)
   ═══════════════════════════════════════════════════════════════ */
.coming-soon-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cs-list-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 12px 14px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 1px 3px rgba(28, 62, 44, 0.03);
}

.cs-list-card:active {
  transform: scale(0.99);
  background: var(--color-surface-hover);
}

.cs-list-card:hover {
  border-color: var(--color-sage);
}

.cs-list-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--color-surface-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  opacity: 0.85;
}

.cs-list-body {
  flex: 1;
  min-width: 0;
}

.cs-list-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 2px;
}

.cs-list-bangla {
  font-size: 11px;
  color: var(--color-text-muted);
  font-weight: 500;
}

.cs-list-lock {
  font-size: 14px;
  opacity: 0.5;
  flex-shrink: 0;
}

.view-all-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px;
  background: transparent;
  border: 1.5px dashed var(--color-border);
  border-radius: 14px;
  color: var(--color-forest);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  margin-top: 4px;
}

.view-all-card:hover {
  background: var(--color-forest-soft);
  border-color: var(--color-forest);
}

.view-all-card:active {
  transform: scale(0.98);
}


/* ═══════════════════════════════════════════════════════════════
   7. INFO BANNER (Home)
   ═══════════════════════════════════════════════════════════════ */
.home-info-banner {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: linear-gradient(135deg, var(--color-forest-soft), transparent);
  border-left: 4px solid var(--color-forest);
  border-radius: 14px;
  padding: 14px;
  margin-top: 22px;
}

.hib-icon {
  font-size: 22px;
  flex-shrink: 0;
  line-height: 1;
}

.hib-body {
  flex: 1;
}

.hib-title {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-forest);
  margin-bottom: 4px;
}

.hib-text {
  font-size: 11.5px;
  color: var(--color-text-muted);
  line-height: 1.5;
}


/* ═══════════════════════════════════════════════════════════════
   8. SUBJECT HERO - COMPACT (Detail Page)
   ═══════════════════════════════════════════════════════════════ */
.subject-hero-compact {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  background: linear-gradient(135deg, var(--color-forest-soft), transparent);
  border-radius: 16px;
  border-left: 4px solid var(--color-forest);
  margin-bottom: 16px;
}

.shc-icon {
  font-size: 38px;
  line-height: 1;
  flex-shrink: 0;
}

.shc-info {
  flex: 1;
  min-width: 0;
}

.shc-name {
  font-size: 16px;
  font-weight: 800;
  color: var(--color-forest);
  margin-bottom: 2px;
  letter-spacing: -0.3px;
}

.shc-bangla {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}

.shc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.shc-chip {
  font-size: 9px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--color-forest-soft);
  color: var(--color-forest);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.shc-chip-type {
  background: var(--color-sage-light);
  color: var(--color-sage-dark);
}

.shc-chip-credit {
  background: var(--color-accent-light);
  color: var(--color-accent);
}


/* ═══════════════════════════════════════════════════════════════
   9. COMPACT SECTION HEADER (Detail Page)
   ═══════════════════════════════════════════════════════════════ */
.compact-section-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 18px 0 10px;
}

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

.csh-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.2px;
  flex: 1;
}

.csh-count {
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  background: var(--color-forest-soft);
  color: var(--color-forest);
  border-radius: 999px;
}

.csh-chip-lock {
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  background: var(--color-surface-hover);
  color: var(--color-text-dim);
  border-radius: 999px;
}


/* ═══════════════════════════════════════════════════════════════
   10. CHAPTERS ACCORDION (Detail Page)
   ═══════════════════════════════════════════════════════════════ */
.chapters-accordion {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chapter-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(28, 62, 44, 0.03);
}

.chapter-item.expanded {
  border-color: var(--color-forest);
  box-shadow: 0 4px 14px rgba(28, 62, 44, 0.1);
}

.chapter-header {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.15s ease;
}

.chapter-header:hover {
  background: var(--color-surface-hover);
}

.chapter-header:active {
  background: var(--color-forest-soft);
}

.ch-number-pill {
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-forest-soft), var(--color-sage-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: var(--color-forest);
  font-family: var(--font-mono);
  letter-spacing: -0.3px;
  flex-shrink: 0;
  border: 1px solid rgba(28, 62, 44, 0.06);
}

.ch-header-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ch-title-bn {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-forest);
  line-height: 1.25;
  letter-spacing: -0.2px;
}

.ch-title-en {
  font-size: 10.5px;
  color: var(--color-text-muted);
  line-height: 1.25;
  font-weight: 500;
}

.ch-chevron {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.chapter-item.expanded .ch-chevron {
  background: var(--color-forest);
  color: #FFFFFF;
  transform: rotate(180deg);
}

.chapter-body {
  transition: max-height 0.3s cubic-bezier(0.34, 1.2, 0.64, 1);
}

.ch-body-inner {
  padding: 0 12px 12px;
  border-top: 1px dashed var(--color-border);
  padding-top: 12px;
}

.ch-body-note {
  font-size: 11px;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 10px;
  padding: 8px 10px;
  background: var(--color-forest-soft);
  border-radius: 8px;
  border-left: 2px solid var(--color-forest);
}

.ch-actions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.ch-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 4px;
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.ch-action-btn:active {
  transform: scale(0.94);
  background: var(--color-forest-soft);
  border-color: var(--color-forest);
}

.ch-action-btn:hover {
  border-color: var(--color-sage);
}

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

.cha-label {
  font-size: 9px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.1;
}


/* ═══════════════════════════════════════════════════════════════
   11. FEATURES HORIZONTAL SCROLL (Detail Page)
   ═══════════════════════════════════════════════════════════════ */
.features-horizontal-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
}

.features-horizontal-scroll::-webkit-scrollbar {
  display: none;
}

.feature-chip-card {
  flex: 0 0 auto;
  width: 88px;
  padding: 12px 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
  scroll-snap-align: start;
  box-shadow: 0 1px 3px rgba(28, 62, 44, 0.03);
}

.feature-chip-card:active {
  transform: scale(0.95);
  background: var(--color-surface-hover);
  border-color: var(--color-forest);
}

.feature-chip-card:hover {
  border-color: var(--color-sage);
  box-shadow: 0 3px 10px rgba(28, 62, 44, 0.08);
}

.fcc-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-forest-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.fcc-title {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--color-forest);
  text-align: center;
  line-height: 1.2;
}

.fcc-lock {
  position: absolute;
  top: 4px;
  right: 4px;
  font-size: 9px;
  opacity: 0.6;
}


/* ═══════════════════════════════════════════════════════════════
   12. EMPTY STATE
   ═══════════════════════════════════════════════════════════════ */
.empty-state-box {
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: 14px;
  padding: 24px 16px;
  text-align: center;
  margin-bottom: 8px;
  position: relative;
}

.empty-icon-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-forest-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 10px;
}

.empty-heading {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 3px;
}

.empty-bangla {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-forest);
  margin-bottom: 6px;
}

.empty-message {
  font-size: 11.5px;
  color: var(--color-text-muted);
  line-height: 1.5;
  max-width: 280px;
  margin: 0 auto;
}

.empty-badge {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  padding: 3px 8px;
  background: var(--color-surface-hover);
  color: var(--color-text-dim);
  border-radius: 999px;
  margin-bottom: 8px;
}


/* ═══════════════════════════════════════════════════════════════
   13. COMING SOON MODAL
   ═══════════════════════════════════════════════════════════════ */
.coming-soon-modal-content {
  background: var(--color-surface);
  border-radius: 20px;
  padding: 26px 20px 18px;
  max-width: 320px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.coming-soon-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-forest-soft));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 12px;
}

.coming-soon-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-forest);
  margin-bottom: 8px;
}

.coming-soon-desc {
  font-size: 12.5px;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 8px;
}

.coming-soon-desc strong {
  color: var(--color-forest);
  font-weight: 700;
}

.coming-soon-hint {
  font-size: 10.5px;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 14px;
}


/* ═══════════════════════════════════════════════════════════════
   14. COMING SOON PAGE
   ═══════════════════════════════════════════════════════════════ */
.coming-soon-page {
  text-align: center;
  padding: 30px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  margin-top: 20px;
}

.csp-icon {
  font-size: 56px;
  margin-bottom: 14px;
  filter: grayscale(0.2);
}

.csp-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-forest);
  margin-bottom: 4px;
}

.csp-bangla {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.csp-desc {
  font-size: 12.5px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

.csp-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}


/* ═══════════════════════════════════════════════════════════════
   15. SUBJECTS LIST (Full Page)
   ═══════════════════════════════════════════════════════════════ */
.page-intro {
  background: var(--color-forest-soft);
  border-left: 3px solid var(--color-forest);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 14px;
}

.page-intro-text {
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.subject-list-full {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.subject-card-full {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 1px 3px rgba(28, 62, 44, 0.03);
}

.subject-card-full:active {
  transform: scale(0.99);
  background: var(--color-surface-hover);
  border-color: var(--color-forest);
}

.subject-card-full:hover {
  border-color: var(--color-sage);
  box-shadow: 0 3px 10px rgba(28, 62, 44, 0.08);
}

.subj-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.subj-number {
  font-size: 10px;
  font-weight: 800;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
}

.subj-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-forest-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.subj-body {
  flex: 1;
  min-width: 0;
}

.subj-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-forest);
  margin-bottom: 2px;
}

.subj-bangla {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.subj-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 6px;
}

.subj-desc {
  font-size: 11px;
  color: var(--color-text-dim);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.subj-arrow {
  color: var(--color-text-dim);
  flex-shrink: 0;
}


/* ═══════════════════════════════════════════════════════════════
   16. MORE PAGE
   ═══════════════════════════════════════════════════════════════ */
.more-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.more-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.more-card:active {
  transform: scale(0.99);
  background: var(--color-surface-hover);
}

.more-card:hover {
  border-color: var(--color-sage);
}

.more-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-surface-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.more-body {
  flex: 1;
  min-width: 0;
}

.more-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-forest);
  margin-bottom: 2px;
}

.more-bangla {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-bottom: 3px;
}

.more-desc {
  font-size: 11px;
  color: var(--color-text-dim);
  line-height: 1.3;
}

.more-lock {
  font-size: 16px;
  opacity: 0.6;
  flex-shrink: 0;
}


/* ═══════════════════════════════════════════════════════════════
   17. INFO BOX (Generic)
   ═══════════════════════════════════════════════════════════════ */
.info-box-civil {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--color-accent-light);
  border-radius: 12px;
  padding: 12px;
  margin-top: 14px;
}

.info-icon {
  font-size: 18px;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 2px;
}

.info-text {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 3px;
}

.info-sub {
  font-size: 11px;
  color: var(--color-text-muted);
  line-height: 1.5;
}


/* ═══════════════════════════════════════════════════════════════
   18. BOTTOM NAV LOCK BADGE
   ═══════════════════════════════════════════════════════════════ */
.nav-item.locked {
  opacity: 0.75;
}

.nav-item.locked .nav-item-icon {
  position: relative;
}

.nav-lock-badge {
  position: absolute;
  top: -4px;
  right: -6px;
  font-size: 8px;
  background: var(--color-surface);
  border-radius: 50%;
  width: 14px;
  height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xs);
}


/* ═══════════════════════════════════════════════════════════════
   19. RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 380px) {
  .subject-cards-grid {
    gap: 10px;
  }
  .subject-card-pro {
    padding: 12px;
    min-height: 138px;
  }
  .subj-pro-name {
    font-size: 13px;
  }
  .subj-pro-icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
  .quick-access-grid {
    gap: 8px;
  }
  .qa-icon {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }
  .home-hero-title {
    font-size: 20px;
  }
  .ch-number-pill {
    min-width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .ch-title-bn {
    font-size: 12.5px;
  }
  .ch-actions-grid {
    gap: 4px;
  }
  .ch-action-btn {
    padding: 6px 2px;
  }
  .cha-icon {
    font-size: 14px;
  }
  .cha-label {
    font-size: 8px;
  }
  .feature-chip-card {
    width: 78px;
  }
}

@media (min-width: 500px) {
  .subject-cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .quick-access-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}


/* ═══════════════════════════════════════════════════════════════
   20. DARK MODE
   ═══════════════════════════════════════════════════════════════ */
[data-theme="dark"] .daily-tip-card {
  background: linear-gradient(135deg, #302410 0%, #3D2E15 100%);
  border-color: #4A3A1C;
}

[data-theme="dark"] .tip-label {
  background: rgba(255, 255, 255, 0.1);
  color: #FCD34D;
}

[data-theme="dark"] .tip-text {
  color: #FDE68A;
}

[data-theme="dark"] .tip-icon-box {
  background: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .subject-card-pro:hover {
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .quick-access-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .home-hero {
  background: linear-gradient(135deg, #12291D 0%, #1F3D2C 50%, #12291D 100%);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .chapter-item.expanded {
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .feature-chip-card:hover {
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .ch-number-pill {
  border-color: rgba(255, 255, 255, 0.05);
}
/* ═══════════════════════════════════════════════════════════════
   FEATURES HORIZONTAL SCROLL - Premium
   ═══════════════════════════════════════════════════════════════ */
.features-horizontal-scroll {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 10px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  margin-bottom: 18px;
}

.features-horizontal-scroll::-webkit-scrollbar {
  display: none;
}

.feature-chip-card {
  flex: 0 0 auto;
  width: 96px;
  padding: 12px 8px 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  scroll-snap-align: start;
  box-shadow: 0 1px 3px rgba(28, 62, 44, 0.04);
}

.feature-chip-card:active {
  transform: scale(0.94);
  background: var(--color-surface-hover);
  border-color: var(--color-forest);
}

.feature-chip-card:hover {
  border-color: var(--color-sage);
  box-shadow: 0 4px 12px rgba(28, 62, 44, 0.1);
  transform: translateY(-3px);
}

.fcc-icon {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--color-forest-soft), var(--color-sage-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  margin-bottom: 2px;
}

.fcc-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-forest);
  text-align: center;
  line-height: 1.2;
  letter-spacing: -0.1px;
}

.fcc-bangla {
  font-size: 9px;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.1;
  font-weight: 500;
}

.fcc-lock {
  position: absolute;
  top: 5px;
  right: 5px;
  font-size: 9px;
  opacity: 0.55;
}


/* ═══════════════════════════════════════════════════════════════
   CHAPTERS META BAR (replace heading)
   ═══════════════════════════════════════════════════════════════ */
.chapters-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, var(--color-forest-soft), transparent);
  border-left: 3px solid var(--color-forest);
  border-radius: 10px;
  padding: 10px 12px;
  margin: 16px 0 10px;
}

.cmb-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

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

.cmb-text {
  font-size: 12.5px;
  color: var(--color-text-muted);
  font-weight: 500;
}

.cmb-text strong {
  color: var(--color-forest);
  font-weight: 800;
}

.cmb-hint {
  font-size: 10px;
  font-weight: 600;
  color: var(--color-text-dim);
  padding: 3px 8px;
  background: var(--color-surface);
  border-radius: 999px;
  border: 1px solid var(--color-border);
}


/* ═══════════════════════════════════════════════════════════════
   CHAPTER ACTION BUTTONS (6 types)
   Row 1: রচনামূলক, সংক্ষিপ্ত, অতি সংক্ষিপ্ত
   Row 2: সাজেশন, কুইজ, সূত্রাবলী
   ═══════════════════════════════════════════════════════════════ */

.ch-body-heading {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--color-border);
}

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

.cbh-text {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.1px;
}

.ch-actions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}

/* Base button */
.ch-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 11px 4px 9px;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.ch-action-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.ch-action-btn:active {
  transform: scale(0.94);
}

.cha-icon {
  font-size: 20px;
  line-height: 1;
  margin-bottom: 1px;
}

.cha-label {
  font-size: 10.5px;
  font-weight: 800;
  color: var(--color-text);
  text-align: center;
  line-height: 1.15;
  letter-spacing: -0.1px;
}

.cha-sub {
  font-size: 8.5px;
  font-weight: 600;
  color: var(--color-text-dim);
  text-align: center;
  line-height: 1.1;
}

/* ─── 1. রচনামূলক (Creative) - Forest Green ─── */
.ch-action-creative::before {
  background: linear-gradient(90deg, var(--color-forest), var(--color-sage));
}
.ch-action-creative:hover {
  border-color: var(--color-forest);
  background: var(--color-forest-soft);
}
.ch-action-creative:hover::before { opacity: 1; }
.ch-action-creative .cha-icon { color: var(--color-forest); }

/* ─── 2. সংক্ষিপ্ত (Short) - Amber ─── */
.ch-action-short::before {
  background: linear-gradient(90deg, var(--color-accent), #F59E0B);
}
.ch-action-short:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}
.ch-action-short:hover::before { opacity: 1; }
.ch-action-short .cha-icon { color: var(--color-accent); }

/* ─── 3. অতি সংক্ষিপ্ত (MCQ) - Indigo ─── */
.ch-action-mcq::before {
  background: linear-gradient(90deg, #4338CA, #6366F1);
}
.ch-action-mcq:hover {
  border-color: #4338CA;
  background: rgba(67, 56, 202, 0.06);
}
.ch-action-mcq:hover::before { opacity: 1; }
.ch-action-mcq .cha-icon { color: #4338CA; }

/* ─── 4. সাজেশন (Suggestion) - Purple ─── */
.ch-action-suggestion::before {
  background: linear-gradient(90deg, #7C3AED, #A78BFA);
}
.ch-action-suggestion:hover {
  border-color: #7C3AED;
  background: rgba(124, 58, 237, 0.06);
}
.ch-action-suggestion:hover::before { opacity: 1; }
.ch-action-suggestion .cha-icon { color: #7C3AED; }

/* ─── 5. কুইজ (Quiz) - Cyan ─── */
.ch-action-quiz::before {
  background: linear-gradient(90deg, #0891B2, #22D3EE);
}
.ch-action-quiz:hover {
  border-color: #0891B2;
  background: rgba(8, 145, 178, 0.06);
}
.ch-action-quiz:hover::before { opacity: 1; }
.ch-action-quiz .cha-icon { color: #0891B2; }

/* ─── 6. সূত্রাবলী (Formulas) - Rose ─── */
.ch-action-formula::before {
  background: linear-gradient(90deg, #E11D48, #FB7185);
}
.ch-action-formula:hover {
  border-color: #E11D48;
  background: rgba(225, 29, 72, 0.06);
}
.ch-action-formula:hover::before { opacity: 1; }
.ch-action-formula .cha-icon { color: #E11D48; }


/* ═══════════════════════════════════════════════════════════════
   CHAPTER BODY FOOTER (Lock indicator)
   ═══════════════════════════════════════════════════════════════ */
.ch-body-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 10px;
  background: var(--color-surface-hover);
  border-radius: 8px;
  margin-top: 4px;
}

.cbf-lock {
  font-size: 11px;
  opacity: 0.7;
}

.cbf-text {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--color-text-dim);
  letter-spacing: 0.1px;
}


/* ═══════════════════════════════════════════════════════════════
   DARK MODE - Chapter action buttons
   ═══════════════════════════════════════════════════════════════ */
[data-theme="dark"] .ch-action-creative:hover {
  background: rgba(82, 148, 112, 0.12);
}
[data-theme="dark"] .ch-action-short:hover {
  background: rgba(224, 142, 43, 0.12);
}
[data-theme="dark"] .ch-action-mcq:hover {
  background: rgba(99, 102, 241, 0.12);
}
[data-theme="dark"] .ch-action-suggestion:hover {
  background: rgba(167, 139, 250, 0.12);
}
[data-theme="dark"] .ch-action-quiz:hover {
  background: rgba(34, 211, 238, 0.12);
}
[data-theme="dark"] .ch-action-formula:hover {
  background: rgba(251, 113, 133, 0.12);
}


/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE - Small phones
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 360px) {
  .ch-actions-grid {
    gap: 6px;
  }
  .ch-action-btn {
    padding: 9px 3px 7px;
  }
  .cha-icon {
    font-size: 18px;
  }
  .cha-label {
    font-size: 9.5px;
  }
  .cha-sub {
    font-size: 8px;
  }
}


/* ═══════════════════════════════════════════════════════════════
   CHAPTER BODY FOOTER (Lock indicator)
   ═══════════════════════════════════════════════════════════════ */
.ch-body-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 10px;
  background: var(--color-surface-hover);
  border-radius: 8px;
  margin-top: 4px;
}

.cbf-lock {
  font-size: 11px;
  opacity: 0.7;
}

.cbf-text {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--color-text-dim);
  letter-spacing: 0.1px;
}


/* ═══════════════════════════════════════════════════════════════
   DARK MODE - Feature chips & chapter buttons
   ═══════════════════════════════════════════════════════════════ */
[data-theme="dark"] .ch-action-creative:hover {
  background: rgba(82, 148, 112, 0.1);
}

[data-theme="dark"] .ch-action-short:hover {
  background: rgba(224, 142, 43, 0.1);
}

[data-theme="dark"] .ch-action-mcq:hover {
  background: rgba(99, 102, 241, 0.1);
}


/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE - Small phones
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 360px) {
  .feature-chip-card {
    width: 84px;
    padding: 10px 6px 8px;
  }
  .fcc-icon {
    width: 34px;
    height: 34px;
    font-size: 17px;
  }
  .fcc-title {
    font-size: 10px;
  }
  .ch-action-btn {
    padding: 10px 3px 8px;
  }
  .cha-icon {
    font-size: 20px;
  }
  .cha-label {
    font-size: 10px;
  }
  .cha-sub {
    font-size: 8.5px;
  }
}
/* ═══════════════════════════════════════════════════════════════
   SEMESTER DROPDOWN (Home)
   ═══════════════════════════════════════════════════════════════ */
.semester-dropdown-wrap {
  position: relative;
  margin-bottom: 20px;
  z-index: 30;
}

.semester-dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(28, 62, 44, 0.05);
}

.semester-dropdown-trigger:hover {
  border-color: var(--color-sage);
  box-shadow: 0 4px 14px rgba(28, 62, 44, 0.1);
}

.semester-dropdown-trigger:active {
  transform: scale(0.99);
}

.sdt-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sdt-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-forest-soft), var(--color-sage-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.sdt-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  gap: 2px;
}

.sdt-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.sdt-value {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-forest);
  letter-spacing: -0.2px;
}

.sdt-chevron {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-forest-soft);
  color: var(--color-forest);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease;
}

.semester-dropdown-wrap.open .sdt-chevron {
  transform: rotate(180deg);
  background: var(--color-forest);
  color: #FFFFFF;
}

/* Dropdown menu */
.semester-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(28, 62, 44, 0.15);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.28s cubic-bezier(0.34, 1.2, 0.64, 1);
  z-index: 40;
}

.semester-dropdown-wrap.open .semester-dropdown-menu {
  max-height: 500px;
  overflow-y: auto;
  opacity: 1;
  padding: 8px;
}

.sdm-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px 10px;
  border-bottom: 1px dashed var(--color-border);
  margin-bottom: 6px;
}

.sdm-title {
  font-size: 12px;
  font-weight: 800;
  color: var(--color-text);
}

.sdm-hint {
  font-size: 10px;
  color: var(--color-text-dim);
  padding: 2px 8px;
  background: var(--color-surface-hover);
  border-radius: 999px;
}

.sdm-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px;
  background: transparent;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}

.sdm-item:hover {
  background: var(--color-surface-hover);
}

.sdm-item.active {
  background: var(--color-forest-soft);
}

.sdm-item:active {
  transform: scale(0.98);
}

.sdm-item-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-surface-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.sdm-item.active .sdm-item-icon {
  background: var(--color-forest);
}

.sdm-item-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sdm-item-top {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sdm-item-name {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-forest);
  letter-spacing: -0.2px;
}

.sdm-item-roman {
  font-size: 9px;
  font-weight: 700;
  color: var(--color-text-dim);
  background: var(--color-surface-hover);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.sdm-item-sub {
  font-size: 10.5px;
  color: var(--color-text-muted);
  font-weight: 500;
}

.sdm-item-status {
  flex-shrink: 0;
}

.sdm-badge {
  font-size: 9.5px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.sdm-badge-ready {
  background: var(--color-forest-soft);
  color: var(--color-forest);
}

.sdm-badge-soon {
  background: var(--color-surface-hover);
  color: var(--color-text-dim);
}

/* ═══════════════════════════════════════════════════════════════
   SEMESTER DETAIL PAGE
   ═══════════════════════════════════════════════════════════════ */
.semester-hero {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--color-forest), var(--color-forest-dark));
  color: #FFFFFF;
  box-shadow: 0 8px 24px rgba(28, 62, 44, 0.2);
}

.semester-hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(200, 122, 30, 0.15) 0%, transparent 40%);
  pointer-events: none;
}

.semester-hero-content {
  position: relative;
  padding: 20px;
}

.semester-hero-icon {
  font-size: 42px;
  line-height: 1;
  margin-bottom: 10px;
}

.semester-hero-info {
  margin-bottom: 16px;
}

.semester-hero-name {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.4px;
  margin-bottom: 4px;
}

.semester-hero-en {
  font-size: 12px;
  opacity: 0.85;
  margin-bottom: 8px;
  font-weight: 500;
}

.semester-hero-desc {
  font-size: 12px;
  opacity: 0.75;
  line-height: 1.5;
}

.semester-hero-stats {
  display: flex;
  gap: 20px;
  padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.shs-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.shs-value {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.shs-label {
  font-size: 10px;
  opacity: 0.75;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  font-weight: 600;
}

/* Books list */
.semester-books-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.book-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 1px 3px rgba(28, 62, 44, 0.03);
  position: relative;
}

.book-card:active {
  transform: scale(0.98);
  background: var(--color-surface-hover);
}

.book-card:hover {
  border-color: var(--color-sage);
  box-shadow: 0 4px 14px rgba(28, 62, 44, 0.1);
  transform: translateY(-2px);
}

.book-number {
  font-size: 10px;
  font-weight: 800;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
  flex-shrink: 0;
  width: 22px;
  text-align: center;
}

.book-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-forest-soft), var(--color-sage-light));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 24px;
}

.book-body {
  flex: 1;
  min-width: 0;
}

.book-name {
  font-size: 14px;
  font-weight: 800;
  color: var(--color-forest);
  margin-bottom: 2px;
  line-height: 1.25;
  letter-spacing: -0.2px;
}

.book-bangla {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}

.book-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.book-chip {
  font-size: 9px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--color-surface-hover);
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.book-chip-credit {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.book-pdf-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  flex-shrink: 0;
  padding: 6px 8px;
  background: var(--color-danger-bg);
  border-radius: 8px;
}

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

.bpi-label {
  font-size: 8px;
  font-weight: 800;
  color: var(--color-danger);
  letter-spacing: 0.4px;
}

/* Empty semester */
.empty-semester-box {
  text-align: center;
  padding: 32px 20px;
  background: var(--color-surface);
  border: 1.5px dashed var(--color-border);
  border-radius: 18px;
  margin-bottom: 8px;
}

.esb-icon {
  font-size: 52px;
  margin-bottom: 12px;
  opacity: 0.8;
}

.esb-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-forest);
  margin-bottom: 6px;
}

.esb-bangla {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.esb-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.esb-chip {
  font-size: 10px;
  font-weight: 600;
  padding: 5px 10px;
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
  border-radius: 999px;
  border: 1px solid var(--color-border);
}

/* Quick semester navigation */
.semester-quick-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.sqn-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
}

.sqn-btn.active:hover {
  border-color: var(--color-forest);
  background: var(--color-forest-soft);
}

.sqn-btn:active {
  transform: scale(0.95);
}

.sqn-btn.locked {
  opacity: 0.65;
}

.sqn-icon {
  font-size: 20px;
}

.sqn-name {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--color-forest);
}

.sqn-lock {
  position: absolute;
  top: 4px;
  right: 4px;
  font-size: 9px;
  opacity: 0.6;
}

/* Compact section hint */
.csh-hint {
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-radius: 999px;
}

/* Dark mode */
[data-theme="dark"] .semester-dropdown-menu {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .semester-hero {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* Responsive */
@media (max-width: 360px) {
  .book-icon-box {
    width: 42px;
    height: 42px;
    font-size: 20px;
  }
  .book-name {
    font-size: 13px;
  }
  .semester-hero-name {
    font-size: 20px;
  }
  .sqn-btn {
    padding: 10px 4px;
  }
  .sqn-name {
    font-size: 9.5px;
  }
}
/* ═══════════════════════════════════════════════════════════════
   DEPARTMENT HERO (Home)
   ═══════════════════════════════════════════════════════════════ */
.home-dept-hero {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  margin-bottom: 20px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  box-shadow: 0 8px 24px rgba(28, 62, 44, 0.1);
}

.hdh-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hdh-content {
  position: relative;
  padding: 28px 20px;
  text-align: center;
}

.hdh-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin: 0 auto 14px;
  border: 2px solid rgba(255,255,255,0.5);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.hdh-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-forest);
  letter-spacing: -0.4px;
  margin-bottom: 4px;
}

.hdh-bangla {
  font-size: 14px;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-bottom: 6px;
}

.hdh-sub {
  font-size: 11px;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════════
   DEPARTMENT HERO (Home)
   ═══════════════════════════════════════════════════════════════ */
.home-dept-hero {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  margin-bottom: 20px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  box-shadow: 0 8px 24px rgba(28, 62, 44, 0.1);
}

.hdh-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hdh-content {
  position: relative;
  padding: 28px 20px;
  text-align: center;
}

.hdh-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin: 0 auto 14px;
  border: 2px solid rgba(255,255,255,0.5);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.hdh-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-forest);
  letter-spacing: -0.4px;
  margin-bottom: 4px;
}

.hdh-bangla {
  font-size: 14px;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-bottom: 6px;
}

.hdh-sub {
  font-size: 11px;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════════
   DEPARTMENT DROPDOWN
   ═══════════════════════════════════════════════════════════════ */
.dept-dropdown-wrap {
  position: relative;
  margin-bottom: 20px;
  z-index: 30;
}

.dept-dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 16px 18px;
  background: var(--color-surface);
  border: 2px solid var(--color-forest);
  border-radius: 18px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 6px 20px rgba(28, 62, 44, 0.15);
}

.dept-dropdown-trigger:hover {
  box-shadow: 0 8px 24px rgba(28, 62, 44, 0.2);
  transform: translateY(-1px);
}

.dept-dropdown-trigger:active {
  transform: scale(0.99);
}

.ddt-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.ddt-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-forest-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.ddt-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  gap: 2px;
  min-width: 0;
}

.ddt-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.ddt-value {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-forest);
  letter-spacing: -0.2px;
}

.ddt-chevron {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-forest);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.dept-dropdown-wrap.open .ddt-chevron {
  transform: rotate(180deg);
}

/* Dropdown menu */
.dept-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  box-shadow: 0 16px 40px rgba(28, 62, 44, 0.2);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.28s cubic-bezier(0.34, 1.2, 0.64, 1);
  z-index: 40;
}

.dept-dropdown-wrap.open .dept-dropdown-menu {
  max-height: 500px;
  overflow-y: auto;
  opacity: 1;
  padding: 12px;
}

.ddm-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 8px 10px;
  border-bottom: 1px dashed var(--color-border);
  margin-bottom: 8px;
}

.ddm-title {
  font-size: 12px;
  font-weight: 800;
  color: var(--color-text);
}

.ddm-hint {
  font-size: 10px;
  color: var(--color-text-dim);
  padding: 2px 8px;
  background: var(--color-surface-hover);
  border-radius: 999px;
}

.ddm-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ddm-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}

.ddm-item:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border);
}

.ddm-item.active {
  background: var(--color-forest-soft);
  border-color: var(--color-forest);
}

.ddm-item:active {
  transform: scale(0.98);
}

.ddm-item-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.ddm-item-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ddm-item-name {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: -0.2px;
}

.ddm-item-bangla {
  font-size: 11px;
  color: var(--color-text-muted);
  font-weight: 500;
}

.ddm-item-status {
  flex-shrink: 0;
}

.ddm-badge {
  font-size: 9.5px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.ddm-badge-current {
  background: var(--color-forest);
  color: #FFFFFF;
}

.ddm-badge-ready {
  background: var(--color-forest-soft);
  color: var(--color-forest);
}

.ddm-badge-soon {
  background: var(--color-surface-hover);
  color: var(--color-text-dim);
}

/* ═══════════════════════════════════════════════════════════════
   DEPARTMENT PDF PAGE
   ═══════════════════════════════════════════════════════════════ */
.dept-pdf-hero {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: var(--color-surface);
  border-radius: 18px;
  border-left: 5px solid var(--color-forest);
  margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(28, 62, 44, 0.08);
}

.dph-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  flex-shrink: 0;
}

.dph-info {
  flex: 1;
  min-width: 0;
}

.dph-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-forest);
  letter-spacing: -0.3px;
  margin-bottom: 2px;
}

.dph-bangla {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.dph-count {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 10px;
  background: var(--color-forest-soft);
  color: var(--color-forest);
  border-radius: 999px;
}

.dph-count-soon {
  background: var(--color-surface-hover);
  color: var(--color-text-dim);
}

/* PDF books grid */
.pdf-books-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.pdf-book-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 12px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 2px 8px rgba(28, 62, 44, 0.04);
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
}

.pdf-book-card:hover {
  border-color: var(--color-sage);
  box-shadow: 0 6px 18px rgba(28, 62, 44, 0.1);
  transform: translateY(-2px);
}

.pdf-book-card:active {
  transform: scale(0.97);
  border-color: var(--color-forest);
}

.pbc-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pbc-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-forest-soft), var(--color-sage-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.pbc-pdf-badge {
  font-size: 9px;
  font-weight: 800;
  padding: 3px 8px;
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-radius: 6px;
  letter-spacing: 0.5px;
}

.pbc-body {
  flex: 1;
  min-width: 0;
}

.pbc-name {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-forest);
  line-height: 1.25;
  margin-bottom: 3px;
  letter-spacing: -0.2px;
}

.pbc-bangla {
  font-size: 10.5px;
  color: var(--color-text-muted);
  line-height: 1.3;
  font-weight: 500;
}

.pbc-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 8px;
  border-top: 1px dashed var(--color-border);
}

.pbc-code {
  font-size: 9.5px;
  font-weight: 700;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.3px;
}

.pbc-open {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-forest);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease;
}

.pdf-book-card:hover .pbc-open {
  transform: translateX(3px);
}

/* Empty PDF state */
.dept-empty-pdf {
  text-align: center;
  padding: 36px 20px;
  background: var(--color-surface);
  border: 1.5px dashed var(--color-border);
  border-radius: 20px;
  margin-bottom: 8px;
}

.dep-icon {
  font-size: 56px;
  margin-bottom: 14px;
  opacity: 0.8;
}

.dep-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--color-forest);
  margin-bottom: 8px;
}

.dep-bangla {
  font-size: 12.5px;
  color: var(--color-text-muted);
  margin-bottom: 18px;
  line-height: 1.55;
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

.dep-bangla strong {
  color: var(--color-forest);
}

.dep-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.dep-chip {
  font-size: 10px;
  font-weight: 600;
  padding: 6px 12px;
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
  border-radius: 999px;
  border: 1px solid var(--color-border);
}

/* Dark mode */
[data-theme="dark"] .dept-dropdown-menu {
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] .dept-pdf-hero {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* Responsive */
@media (max-width: 360px) {
  .hdh-icon {
    width: 60px;
    height: 60px;
    font-size: 30px;
  }
  .hdh-title {
    font-size: 19px;
  }
  .pdf-books-grid {
    gap: 10px;
  }
  .pbc-icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
  .pbc-name {
    font-size: 12px;
  }
}
/* ═══════════════════════════════════════════
   Hero Change Button (Home)
   ═══════════════════════════════════════════ */
.home-hero-title-box {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.home-hero-title-content {
  flex: 1;
  min-width: 0;
}

.home-hero-change-btn {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s ease;
  font-family: inherit;
}

.home-hero-change-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(180deg) scale(1.05);
}

.home-hero-change-btn:active {
  transform: rotate(180deg) scale(0.95);
}
/* Force override for modern bottom nav */
#bottom-nav.bottom-nav {
  position: fixed !important;
  bottom: 0 !important;
  top: auto !important;
  display: block !important;
  width: 100% !important;
  height: auto !important;
}

#bottom-nav .bottom-nav-inner {
  display: grid !important;
  grid-template-columns: repeat(5, 1fr) !important;
  width: 100%;
}

#bottom-nav .nav-item {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
}