@import url('design_system.css');

/* ==========================================================================
   MMM Study — Dashboard Specific Enhancements
   ========================================================================== */

/* Primary Quick Actions Hub */
.primary-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.primary-hub-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.primary-hub-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand-gold);
}

.primary-hub-card.hub-challenge {
  border-left: 3px solid #F59E0B;
}

.primary-hub-card.hub-progress {
  border-left: 3px solid #3B82F6;
}

.primary-hub-card.hub-notes {
  border-left: 3px solid #10B981;
}

.primary-hub-card.hub-resources {
  border-left: 3px solid #8B5CF6;
}

.hub-header-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.hub-icon {
  font-size: 18px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hub-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--brand-navy-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hub-sub {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.35;
}

/* Core Subjects Heading */
.subject-section-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
  margin-bottom: 12px;
}

.subject-section-header h2 {
  font-size: 18px;
  font-weight: 800;
  color: var(--brand-navy-900);
  letter-spacing: -0.2px;
}

.subject-section-caption {
  font-size: 12.5px;
  color: var(--text-secondary);
}

/* Secondary Tools Area */
.secondary-tools-section {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

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

.sec-title-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

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

.secondary-tools-header h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--brand-navy-900);
}

.secondary-tools-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.sec-tool-card {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.sec-tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand-gold);
}

.sec-card-header {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.sec-card-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.sec-card-title {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--brand-navy-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sec-card-sub {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.35;
}

/* Legacy Quick Hub compatibility */
.quick-hub {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.quick-hub-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.quick-hub-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.quick-hub-btn.primary {
  background: var(--brand-gold-gradient);
  color: var(--brand-navy-950);
  box-shadow: 0 4px 14px rgba(197, 155, 39, 0.3);
}

.quick-hub-btn.secondary {
  background: var(--surface-card);
  color: var(--brand-navy-900);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.quick-hub-btn.secondary:hover {
  border-color: var(--border-focus);
}

/* Sidebar Recent Items */
.recent-practice {
  margin-top: 14px;
  text-align: left;
}

.recent-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-gold-hover);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.recent-item {
  display: block;
  text-decoration: none;
  color: inherit;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  margin-bottom: 6px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.recent-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateX(2px);
}

.recent-item .recent-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-inverse);
}

.recent-item .recent-meta {
  font-size: 10.5px;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 2px;
}

.recent-empty {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.65);
  padding: 4px 0;
}

/* Decorative subtle glow for subject cards */
.subject-card::after {
  content: "";
  position: absolute;
  top: -30px;
  right: -30px;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--accent-soft, var(--surface-subtle));
  opacity: 0.25;
  z-index: 0;
  pointer-events: none;
  transition: transform 0.3s ease;
}

.subject-card:hover::after {
  transform: scale(1.3);
}

.card-top, .card-title, .card-sub, .prog-track, .card-bottom {
  position: relative;
  z-index: 1;
}

/* Responsive Breakpoints for Dashboard Grids */
@media (max-width: 1024px) {
  .primary-hub-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .secondary-tools-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .primary-hub-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }
  .secondary-tools-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
}

@media (max-width: 640px) {
  .primary-hub-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .primary-hub-card {
    padding: 10px 12px;
  }
  .hub-title {
    font-size: 13.5px;
  }
  .hub-sub {
    font-size: 11px;
  }
  .secondary-tools-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }
  .sec-tool-card {
    padding: 10px 12px;
  }
  .sec-card-title {
    font-size: 12.5px;
  }
}

@media (max-width: 420px) {
  .primary-hub-grid {
    grid-template-columns: 1fr;
  }
  .secondary-tools-grid {
    grid-template-columns: 1fr;
  }
}


/* ==========================================================================
   Guest Mode Banner & Continue Learning Cards
   Modern Professional Design Enhancements
   ========================================================================== */

/* Guest Banner */
.guest-banner {
  background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 100%);
  border: 1px solid #BFDBFE;
  border-left: 4px solid #2563EB;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}

.guest-banner-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.guest-banner-badge {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #1D4ED8;
}

.guest-banner-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0;
}

.guest-banner-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn-guest-action {
  font-size: 13px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  transition: all 0.18s ease;
  min-height: 38px;
}

.btn-guest-action.login {
  background: #FFFFFF;
  color: var(--brand-navy-900);
  border: 1px solid var(--border-color);
}

.btn-guest-action.login:hover {
  background: #F1F5F9;
  border-color: #CBD5E1;
}

.btn-guest-action.register {
  background: #2563EB;
  color: #FFFFFF !important;
  border: 1px solid transparent;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-guest-action.register:hover {
  background: #1D4ED8;
  transform: translateY(-1px);
}

/* Continue Learning Section */
.continue-learning-section {
  margin-bottom: 24px;
}

.continue-learning-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  gap: 10px;
}

.continue-learning-header h2 {
  font-size: 16px;
  font-weight: 800;
  color: var(--brand-navy-900);
  margin: 0;
}

.view-history-link {
  font-size: 12.5px;
  font-weight: 700;
  color: #2563EB;
  text-decoration: none;
  transition: color 0.15s ease;
}

.view-history-link:hover {
  color: #1D4ED8;
  text-decoration: underline;
}

.continue-card {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.continue-card:hover {
  box-shadow: var(--shadow-md);
  border-color: #CBD5E1;
}

.continue-empty-state {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
}

.continue-empty-icon {
  font-size: 26px;
  line-height: 1;
  flex-shrink: 0;
}

.continue-empty-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex-grow: 1;
}

.continue-empty-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--brand-navy-900);
}

.continue-empty-sub {
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.4;
}

.continue-empty-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: #2563EB;
  color: #FFFFFF !important;
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  flex-shrink: 0;
  transition: background 0.18s ease, transform 0.18s ease;
  min-height: 40px;
}

.continue-empty-btn:hover {
  background: #1D4ED8;
  transform: translateY(-1px);
}

.continue-active-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  gap: 16px;
  border-left: 4px solid var(--subj-accent, #2563EB);
}

.continue-active-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.continue-subj-tag {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--subj-accent, #2563EB);
}

.continue-chapter-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--brand-navy-900);
}

.continue-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-secondary);
}

.continue-score-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #EFF6FF;
  color: #1D4ED8;
  font-weight: 700;
}

.continue-resume-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: #2563EB;
  color: #FFFFFF !important;
  font-size: 13.5px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  flex-shrink: 0;
  transition: background 0.18s ease, transform 0.18s ease;
  min-height: 44px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.continue-resume-btn:hover {
  background: #1D4ED8;
  transform: translateY(-1px);
}

@media (max-width: 640px) {
  .guest-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 14px;
  }
  .guest-banner-actions {
    width: 100%;
    margin-top: 4px;
  }
  .btn-guest-action {
    flex: 1;
    text-align: center;
  }
  .continue-empty-state {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 16px;
  }
  .continue-empty-btn {
    width: 100%;
    justify-content: center;
  }
  .continue-active-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 16px;
  }
  .continue-resume-btn {
    width: 100%;
    justify-content: center;
  }
}


/* ==========================================================================
   PHASE 3.6.1: STUDENT HOMEPAGE MOBILE UI POLISH & TOUCH TARGETS
   - Practice Now buttons: visually compact, clickable height >= 44px
   - Subject cards vertical spacing: 10-12px (exact 11px)
   - Consistent baseline alignment of chapter counts & buttons across all 6 cards
   - Subtle borders, restrained shadows, clean academic header & bottom nav
   ========================================================================== */

#subject-grid,
.subject-section-header {
  scroll-margin-top: 68px;
}

@media (max-width: 768px) {
  /* Page Container & Scroll Padding to Prevent Fixed Element Overlap */
  main {
    padding-top: 66px !important;
    padding-bottom: 78px !important;
  }

  /* Fixed Mobile Header Polish */
  .mobile-header {
    height: 52px !important;
    background: rgba(255, 255, 255, 0.96) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    border-bottom: 1px solid #E2E8F0 !important;
    box-shadow: 0 1px 2px rgba(11, 30, 54, 0.04) !important;
    padding: 0 16px !important;
  }
  .mobile-brand {
    font-size: 15px !important;
    font-weight: 700 !important;
    color: var(--brand-navy-950, #071324) !important;
  }
  .mobile-brand .brand-logo-img {
    width: 28px !important;
    height: 28px !important;
  }
  .sidebar-toggle {
    width: 36px !important;
    height: 36px !important;
    border-radius: 8px !important;
    border: 1px solid #E2E8F0 !important;
    background: #F8FAFC !important;
    color: #1E293B !important;
  }

  /* Fixed Mobile Bottom Navigation Polish */
  .mobile-bottom-nav {
    height: 58px !important;
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    border-top: 1px solid #E2E8F0 !important;
    box-shadow: 0 -2px 8px rgba(11, 30, 54, 0.04) !important;
    padding: 4px 6px !important;
    padding-bottom: max(4px, env(safe-area-inset-bottom)) !important;
  }
  .bottom-nav-item {
    min-height: 46px !important;
    font-size: 10.5px !important;
    font-weight: 500 !important;
    color: #64748B !important;
  }
  .bottom-nav-item svg {
    width: 19px !important;
    height: 19px !important;
  }
  .bottom-nav-item.active {
    color: #1E3A8A !important;
    font-weight: 600 !important;
  }
  .bottom-nav-item.active svg {
    stroke: #1E3A8A !important;
  }
  .bottom-nav-item.active::after {
    height: 2.5px !important;
    background: #1E3A8A !important;
    border-radius: 0 0 3px 3px !important;
  }

  /* Subject Section Header */
  .subject-section-header {
    margin-top: 18px !important;
    margin-bottom: 8px !important;
  }
  .subject-section-header h2 {
    font-size: 17px !important;
    font-weight: 700 !important;
    color: var(--brand-navy-950, #071324) !important;
  }
  .subject-section-caption {
    font-size: 12px !important;
    color: #64748B !important;
  }

  /* Subject Grid Layout - 10-12px Vertical Spacing */
  .subject-grid {
    grid-template-columns: 1fr !important;
    gap: 11px !important;
    margin-top: 6px !important;
  }

  /* Refined Subject Progress Card */
  .subject-card {
    display: grid !important;
    grid-template-columns: 36px 1fr auto !important;
    grid-template-areas:
      "icon title pill"
      "icon sub   pill"
      "track track track"
      "bottom bottom bottom" !important;
    align-items: center !important;
    column-gap: 12px !important;
    row-gap: 2px !important;
    padding: 12px 14px !important;
    border: 1px solid #E2E8F0 !important;
    border-radius: 12px !important;
    background: #FFFFFF !important;
    box-shadow: 0 1px 3px rgba(11, 30, 54, 0.04) !important;
    overflow: hidden !important;
    position: relative !important;
  }
  .subject-card::before {
    height: 3px !important;
    border-radius: 12px 12px 0 0 !important;
  }
  .subject-card::after {
    display: none !important;
  }

  /* Flatten Card-Top Container into Grid */
  .card-top {
    display: contents !important;
  }

  /* Subject Icon Box */
  .subj-icon {
    grid-area: icon !important;
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    border-radius: 9px !important;
    align-self: start !important;
    margin-top: 1px !important;
    margin-bottom: 0 !important;
  }
  .subj-icon svg {
    width: 19px !important;
    height: 19px !important;
  }

  /* Subject Name Heading */
  .card-title {
    grid-area: title !important;
    font-size: 15px !important;
    font-weight: 700 !important;
    color: #0F172A !important;
    margin: 0 !important;
    line-height: 1.25 !important;
  }

  /* Subject Subtitle / Categories - Uniform 2-Line Height for Consistent Baseline Alignment Across All 6 Cards */
  .card-sub {
    grid-area: sub !important;
    font-size: 11.5px !important;
    color: #64748B !important;
    line-height: 1.4 !important;
    margin: 2px 0 0 0 !important;
    height: 33px !important;
    min-height: 33px !important;
    max-height: 33px !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    font-family: 'Noto Sans Myanmar', 'Pyidaungsu', 'Inter', sans-serif !important;
  }

  /* Percentage Completion Pill */
  .completion-pill {
    grid-area: pill !important;
    align-self: start !important;
    font-size: 11px !important;
    font-weight: 600 !important;
    padding: 2.5px 8px !important;
    border-radius: 999px !important;
    background: #F8FAFC !important;
    color: #475569 !important;
    border: 1px solid #E2E8F0 !important;
    white-space: nowrap !important;
    margin: 1px 0 0 0 !important;
  }

  /* Slimmer, Quieter Progress Bar */
  .prog-track {
    grid-area: track !important;
    height: 4px !important;
    border-radius: 999px !important;
    background: #F1F5F9 !important;
    border: none !important;
    margin: 9px 0 7px 0 !important;
  }
  .prog-fill {
    height: 100% !important;
    border-radius: 999px !important;
    background: var(--accent) !important;
  }

  /* Card Bottom Action Row - Perfectly Aligned Baseline */
  .card-bottom {
    grid-area: bottom !important;
    min-height: 44px !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding-top: 2px !important;
    border-top: none !important;
    margin-top: 0 !important;
  }

  /* Chapter Completion Count */
  .qcount {
    font-size: 11.5px !important;
    color: #64748B !important;
    margin: 0 !important;
  }
  .qcount b {
    color: #1E293B !important;
    font-weight: 600 !important;
  }

  /* Refined Practice Now Button - Visually Compact Inline Pill with >= 44px Clickable Touch Target */
  .practice-btn {
    width: auto !important;
    min-height: 44px !important;
    height: 44px !important;
    padding: 0 14px !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    border-radius: 8px !important;
    box-sizing: border-box !important;
    margin-top: 0 !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05) !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 5px !important;
    transition: opacity 0.16s ease, transform 0.16s ease !important;
  }
  .practice-btn:hover {
    opacity: 0.92 !important;
    transform: translateY(-1px) !important;
  }
  .practice-btn:active {
    transform: scale(0.97) !important;
  }
}