/**
 * Utility Seva — Exam Countdown Stylesheet
 * Strict Compact UI Layout (< 768px desktop screen height compliance)
 * Fully responsive across desktop, tablet, and mobile with Dark Mode support
 */

:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --primary-glow: rgba(79, 70, 229, 0.25);
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
}

html[data-theme="dark"],
body.dark {
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.18);
  --primary-glow: rgba(99, 102, 241, 0.35);
}

/* ==========================================================================
   1. Header & Navigation (Utility Seva Standard Header Integration)
   ========================================================================== */
.site-header .nav-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.site-header .theme-toggle-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md, 8px);
  border: 1px solid var(--border-color, #e2e8f0);
  background-color: var(--bg-surface, #ffffff);
  color: var(--text-secondary, #64748b);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
  transition: all var(--transition-fast, 0.15s ease);
  position: relative;
  overflow: hidden;
}

.site-header .theme-toggle-btn:hover {
  background-color: var(--bg-surface-alt, #f8fafc);
  color: var(--text-primary, #0f172a);
  border-color: var(--border-color-hover, #cbd5e1);
}

.site-header .theme-toggle-btn svg {
  width: 20px;
  height: 20px;
  display: block;
  flex-shrink: 0;
  margin: auto;
  stroke: currentColor;
  stroke-width: 2;
  transition: transform var(--transition-fast, 0.15s ease);
}

.site-header .theme-toggle-btn .sun-icon {
  display: none;
}

.site-header .theme-toggle-btn .moon-icon {
  display: block;
}

html[data-theme="dark"] .site-header .theme-toggle-btn .sun-icon,
body.dark .site-header .theme-toggle-btn .sun-icon {
  display: block;
  color: #fbbf24;
}

html[data-theme="dark"] .site-header .theme-toggle-btn .moon-icon,
body.dark .site-header .theme-toggle-btn .moon-icon {
  display: none;
}

/* ==========================================================================
   2. Main Layout, Breadcrumbs & Top Bar
   ========================================================================== */
.converter-main {
  padding: 1rem 0 2.5rem;
  background-color: var(--bg-page, #f8fafc);
  min-height: calc(100vh - 140px);
}

html[data-theme="dark"] .converter-main,
body.dark .converter-main {
  background-color: #0b1120;
}

.converter-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.85rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.breadcrumb-nav-compact {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  color: var(--text-muted, #94a3b8);
  margin-bottom: 0.3rem;
}

.breadcrumb-nav-compact a {
  color: var(--text-secondary, #64748b);
  transition: color var(--transition-fast, 0.15s ease);
  text-decoration: none;
}

.breadcrumb-nav-compact a:hover {
  color: var(--brand-600, #4f46e5);
}

.converter-title-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.converter-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary, #0f172a);
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.2;
}

html[data-theme="dark"] .converter-title,
body.dark .converter-title {
  color: #f8fafc;
}

.tool-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-full, 9999px);
  font-size: 0.72rem;
  font-weight: 600;
  background-color: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.25);
  letter-spacing: 0.01em;
}

.converter-subtitle {
  font-size: 0.82rem;
  color: var(--text-secondary, #64748b);
  margin: 0.2rem 0 0;
  max-width: 820px;
  line-height: 1.4;
}

html[data-theme="dark"] .converter-subtitle,
body.dark .converter-subtitle {
  color: #94a3b8;
}

/* ==========================================================================
   3. Calculator Controls Bar & Filter Tabs
   ========================================================================== */
.calc-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.calc-tabs-group {
  display: inline-flex;
  background-color: var(--bg-surface-alt, #f1f5f9);
  padding: 4px;
  border-radius: var(--radius-md, 8px);
  border: 1px solid var(--border-color, #e2e8f0);
  gap: 4px;
}

html[data-theme="dark"] .calc-tabs-group,
body.dark .calc-tabs-group {
  background-color: #0f172a;
  border-color: #334155;
}

.calc-tab-btn {
  padding: 0.38rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid transparent;
  background-color: transparent;
  color: var(--text-secondary, #475569);
  cursor: pointer;
  transition: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  user-select: none;
}

.calc-tab-btn svg {
  stroke: currentColor;
  transition: stroke 0.15s ease;
}

.calc-tab-btn:hover:not(.active) {
  color: var(--text-primary, #0f172a);
  background-color: rgba(0, 0, 0, 0.04);
}

html[data-theme="dark"] .calc-tab-btn:hover:not(.active),
body.dark .calc-tab-btn:hover:not(.active) {
  color: #f8fafc;
  background-color: rgba(255, 255, 255, 0.05);
}

.calc-tab-btn.active,
.calc-tab-btn[aria-selected="true"] {
  background-color: #4f46e5 !important;
  color: #ffffff !important;
  border-color: #4338ca !important;
  box-shadow: 0 1px 4px rgba(79, 70, 229, 0.35) !important;
  font-weight: 700 !important;
  transition: none !important;
}

.calc-tab-btn.active svg,
.calc-tab-btn[aria-selected="true"] svg {
  stroke: #ffffff !important;
}

html[data-theme="dark"] .calc-tab-btn.active,
body.dark .calc-tab-btn.active,
html[data-theme="dark"] .calc-tab-btn[aria-selected="true"],
body.dark .calc-tab-btn[aria-selected="true"] {
  background-color: #6366f1 !important;
  color: #ffffff !important;
  border-color: #4f46e5 !important;
  box-shadow: 0 1px 6px rgba(99, 102, 241, 0.45) !important;
  transition: none !important;
}

.calc-tab-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.1rem 0.4rem;
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 700;
  background-color: rgba(0, 0, 0, 0.08);
  color: inherit;
}

.calc-tab-btn.active .calc-tab-badge {
  background-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.calc-quick-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-ghost-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.76rem;
  font-weight: 600;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--border-color, #e2e8f0);
  background-color: var(--bg-surface, #ffffff);
  color: var(--text-secondary, #64748b);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast, 0.15s ease);
}

.btn-ghost-sm:hover {
  background-color: var(--bg-surface-alt, #f8fafc);
  color: var(--text-primary, #0f172a);
  border-color: var(--border-color-hover, #cbd5e1);
}

html[data-theme="dark"] .btn-ghost-sm,
body.dark .btn-ghost-sm {
  background-color: #1e293b;
  border-color: #334155;
  color: #94a3b8;
}

html[data-theme="dark"] .btn-ghost-sm:hover,
body.dark .btn-ghost-sm:hover {
  background-color: #334155;
  color: #f8fafc;
}

/* Alert Notification Banner */
.converter-alert {
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md, 8px);
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
  animation: fadeIn 0.2s ease-in-out;
}

.converter-alert svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

html[data-theme="dark"] .converter-alert,
body.dark .converter-alert {
  background-color: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* ==========================================================================
   4. Main Workspace Grid: Two Columns (1366x768 Compact Layout)
   ========================================================================== */
.exam-workspace-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .exam-workspace-grid {
    grid-template-columns: 1fr;
  }
}

.exam-panel-card {
  background-color: var(--bg-surface, #ffffff);
  border-radius: var(--radius-lg, 12px);
  border: 1px solid var(--border-color, #e2e8f0);
  box-shadow: var(--shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.05));
  padding: 1rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: border-color var(--transition-fast, 0.15s ease);
}

html[data-theme="dark"] .exam-panel-card,
body.dark .exam-panel-card {
  background-color: #1e293b;
  border-color: #334155;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.panel-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border-color, #e2e8f0);
}

html[data-theme="dark"] .panel-header-row,
body.dark .panel-header-row {
  border-bottom-color: #334155;
}

.panel-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary, #0f172a);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.panel-title svg {
  width: 16px;
  height: 16px;
  color: var(--primary-color, #4f46e5);
}

html[data-theme="dark"] .panel-title,
body.dark .panel-title {
  color: #f8fafc;
}

.panel-header-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ==========================================================================
   5. Form Controls (Left Panel)
   ========================================================================== */
.exam-form-grid {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.form-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

@media (max-width: 540px) {
  .form-row-2col {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.input-with-hint {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.exam-field-label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-primary, #0f172a);
}

html[data-theme="dark"] .exam-field-label,
body.dark .exam-field-label {
  color: #f8fafc;
}

.input-hint-text {
  font-size: 0.68rem;
  color: var(--text-muted, #94a3b8);
}

.exam-input-md {
  width: 100%;
  padding: 0.45rem 0.65rem;
  font-size: 0.82rem;
  font-family: inherit;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--border-color, #cbd5e1);
  background-color: var(--bg-surface, #ffffff);
  color: var(--text-primary, #0f172a);
  transition: all var(--transition-fast, 0.15s ease);
}

.exam-input-md:focus {
  outline: none;
  border-color: var(--primary-color, #4f46e5);
  box-shadow: 0 0 0 2px var(--primary-glow, rgba(79, 70, 229, 0.2));
}

.exam-input-md.input-error {
  border-color: #ef4444 !important;
  background-color: rgba(239, 68, 68, 0.05) !important;
}

html[data-theme="dark"] .exam-input-md,
body.dark .exam-input-md {
  background-color: #0f172a;
  border-color: #334155;
  color: #f8fafc;
}

textarea.exam-input-md {
  min-height: 48px;
  max-height: 80px;
  resize: vertical;
}

/* Left Actions Row */
.left-actions-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.2rem;
}

.btn-calc-primary {
  flex: 1;
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--primary-hover, #4338ca);
  background-color: var(--primary-color, #4f46e5);
  color: #ffffff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  box-shadow: 0 1px 3px rgba(79, 70, 229, 0.3);
  transition: all var(--transition-fast, 0.15s ease);
}

.btn-calc-primary:hover {
  background-color: var(--primary-hover, #4338ca);
  transform: translateY(-1px);
}

.btn-calc-primary svg {
  width: 14px;
  height: 14px;
}

.btn-calc-reset {
  padding: 0.5rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--border-color, #e2e8f0);
  background-color: var(--bg-surface-alt, #f8fafc);
  color: var(--text-secondary, #64748b);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast, 0.15s ease);
}

.btn-calc-reset:hover {
  background-color: #fee2e2;
  color: #dc2626;
  border-color: #fca5a5;
}

.btn-calc-reset svg {
  width: 13px;
  height: 13px;
}

html[data-theme="dark"] .btn-calc-reset,
body.dark .btn-calc-reset {
  background-color: #0f172a;
  border-color: #334155;
  color: #94a3b8;
}

html[data-theme="dark"] .btn-calc-reset:hover,
body.dark .btn-calc-reset:hover {
  background-color: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.4);
}

/* ==========================================================================
   6. Saved Exams Compact List
   ========================================================================== */
.saved-exams-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.saved-exams-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-secondary, #64748b);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding-bottom: 0.35rem;
}

.exams-scroll-list {
  max-height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding-right: 2px;
}

.exam-list-item {
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-md, 8px);
  border: 1px solid var(--border-color, #e2e8f0);
  background-color: var(--bg-surface-alt, #f8fafc);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  cursor: pointer;
  transition: all var(--transition-fast, 0.15s ease);
  position: relative;
}

.exam-list-item:hover {
  border-color: var(--primary-color, #4f46e5);
  background-color: #ffffff;
  transform: translateY(-1px);
}

html[data-theme="dark"] .exam-list-item {
  background-color: #0f172a;
  border-color: #334155;
}

html[data-theme="dark"] .exam-list-item:hover {
  border-color: var(--primary-color, #6366f1);
  background-color: #1e293b;
}

.exam-list-item.active-exam-item {
  border-color: var(--primary-color, #4f46e5);
  background-color: rgba(79, 70, 229, 0.06);
  box-shadow: 0 0 0 1px var(--primary-color, #4f46e5);
}

html[data-theme="dark"] .exam-list-item.active-exam-item {
  background-color: rgba(99, 102, 241, 0.12);
  border-color: var(--primary-color, #6366f1);
  box-shadow: 0 0 0 1px var(--primary-color, #6366f1);
}

.exam-item-left {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
  flex: 1;
}

.exam-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  background-color: #94a3b8;
}

.exam-status-dot.dot-upcoming {
  background-color: #3b82f6;
  box-shadow: 0 0 6px rgba(59, 130, 246, 0.5);
}

.exam-status-dot.dot-today {
  background-color: #f59e0b;
  box-shadow: 0 0 6px rgba(245, 158, 11, 0.6);
  animation: pulseDot 1.5s infinite;
}

.exam-status-dot.dot-started {
  background-color: #10b981;
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.6);
  animation: pulseDot 1.5s infinite;
}

.exam-status-dot.dot-completed {
  background-color: #64748b;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.exam-item-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.exam-item-title-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: nowrap;
}

.exam-item-name {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-primary, #0f172a);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

html[data-theme="dark"] .exam-item-name {
  color: #f8fafc;
}

.exam-item-sub {
  font-size: 0.72rem;
  color: var(--text-secondary, #64748b);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

html[data-theme="dark"] .exam-item-sub {
  color: #94a3b8;
}

.nearest-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.08rem 0.35rem;
  border-radius: 9999px;
  font-size: 0.64rem;
  font-weight: 700;
  background-color: rgba(245, 158, 11, 0.15);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.3);
  flex-shrink: 0;
}

html[data-theme="dark"] .nearest-badge {
  background-color: rgba(245, 158, 11, 0.25);
  color: #fcd34d;
  border-color: rgba(245, 158, 11, 0.4);
}

.exam-item-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.exam-item-countdown-badge {
  font-size: 0.73rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm, 6px);
  background-color: rgba(79, 70, 229, 0.1);
  color: #4f46e5;
  white-space: nowrap;
}

html[data-theme="dark"] .exam-item-countdown-badge {
  background-color: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
}

.exam-item-actions {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.btn-item-action {
  width: 26px;
  height: 26px;
  border-radius: 4px;
  border: none;
  background-color: transparent;
  color: var(--text-muted, #94a3b8);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast, 0.15s ease);
}

.btn-item-action:hover {
  background-color: rgba(0, 0, 0, 0.08);
  color: var(--text-primary, #0f172a);
}

.btn-item-action.btn-del:hover {
  background-color: #fee2e2;
  color: #dc2626;
}

html[data-theme="dark"] .btn-item-action:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: #f8fafc;
}

html[data-theme="dark"] .btn-item-action.btn-del:hover {
  background-color: rgba(239, 68, 68, 0.25);
  color: #f87171;
}

.btn-item-action svg {
  width: 13px;
  height: 13px;
}

.empty-exams-notice {
  padding: 1.25rem 0.5rem;
  text-align: center;
  color: var(--text-muted, #94a3b8);
  font-size: 0.78rem;
  border: 1px dashed var(--border-color, #e2e8f0);
  border-radius: var(--radius-md, 8px);
}

html[data-theme="dark"] .empty-exams-notice {
  border-color: #334155;
}

/* ==========================================================================
   7. Live Countdown Hero (Right Panel)
   ========================================================================== */
.hero-countdown-banner {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.07) 0%, rgba(99, 102, 241, 0.03) 100%);
  border: 1px solid rgba(79, 70, 229, 0.18);
  border-radius: var(--radius-lg, 12px);
  padding: 1rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  overflow: hidden;
}

html[data-theme="dark"] .hero-countdown-banner {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(15, 23, 42, 0.6) 100%);
  border-color: rgba(99, 102, 241, 0.28);
}

.active-exam-title-group {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.active-exam-headings {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.active-exam-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary, #0f172a);
  margin: 0;
  letter-spacing: -0.01em;
}

html[data-theme="dark"] .active-exam-name {
  color: #f8fafc;
}

.active-exam-subject {
  font-size: 0.8rem;
  color: var(--primary-color, #4f46e5);
  font-weight: 600;
}

html[data-theme="dark"] .active-exam-subject {
  color: #a5b4fc;
}

/* Status Badges */
.status-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  flex-shrink: 0;
}

.badge-upcoming {
  background-color: rgba(59, 130, 246, 0.12);
  color: #2563eb;
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.badge-today {
  background-color: rgba(245, 158, 11, 0.15);
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.3);
  animation: pulseBadge 2s infinite;
}

.badge-started {
  background-color: rgba(16, 185, 129, 0.15);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-completed {
  background-color: rgba(100, 116, 139, 0.12);
  color: #64748b;
  border: 1px solid rgba(100, 116, 139, 0.25);
}

html[data-theme="dark"] .badge-upcoming {
  background-color: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  border-color: rgba(59, 130, 246, 0.4);
}

html[data-theme="dark"] .badge-today {
  background-color: rgba(245, 158, 11, 0.25);
  color: #fcd34d;
  border-color: rgba(245, 158, 11, 0.4);
}

html[data-theme="dark"] .badge-started {
  background-color: rgba(16, 185, 129, 0.25);
  color: #6ee7b7;
  border-color: rgba(16, 185, 129, 0.4);
}

html[data-theme="dark"] .badge-completed {
  background-color: rgba(148, 163, 184, 0.15);
  color: #94a3b8;
  border-color: rgba(148, 163, 184, 0.3);
}

@keyframes pulseBadge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.03); }
}

/* ==========================================================================
   8. Four-Unit Countdown Display Grid
   ========================================================================== */
.countdown-display-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
  margin: 0.35rem 0;
}

@media (max-width: 480px) {
  .countdown-display-grid {
    gap: 0.35rem;
  }
}

.countdown-unit-box {
  background-color: var(--bg-surface, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: var(--radius-md, 8px);
  padding: 0.75rem 0.35rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  position: relative;
}

html[data-theme="dark"] .countdown-unit-box {
  background-color: #0f172a;
  border-color: #334155;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.countdown-number {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1;
  color: var(--primary-color, #4f46e5);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

html[data-theme="dark"] .countdown-number {
  color: #818cf8;
}

.countdown-label {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted, #94a3b8);
  margin-top: 0.35rem;
  letter-spacing: 0.06em;
}

/* Status Guidance Message */
.status-guidance-card {
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm, 6px);
  background-color: rgba(79, 70, 229, 0.05);
  border-left: 3px solid var(--primary-color, #4f46e5);
  font-size: 0.8rem;
  color: var(--text-secondary, #475569);
  line-height: 1.4;
}

html[data-theme="dark"] .status-guidance-card {
  background-color: rgba(99, 102, 241, 0.08);
  border-left-color: #6366f1;
  color: #cbd5e1;
}

/* ==========================================================================
   9. Active Exam Meta Details Grid
   ========================================================================== */
.exam-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.55rem;
}

@media (max-width: 500px) {
  .exam-meta-grid {
    grid-template-columns: 1fr;
  }
}

.meta-item-box {
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm, 6px);
  background-color: var(--bg-surface-alt, #f8fafc);
  border: 1px solid var(--border-color, #e2e8f0);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

html[data-theme="dark"] .meta-item-box {
  background-color: #0f172a;
  border-color: #334155;
}

.meta-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted, #94a3b8);
}

.meta-val {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary, #0f172a);
  line-height: 1.3;
}

html[data-theme="dark"] .meta-val {
  color: #f8fafc;
}

.meta-item-full {
  grid-column: span 2;
}

@media (max-width: 500px) {
  .meta-item-full {
    grid-column: span 1;
  }
}

/* ==========================================================================
   10. Action Buttons Bar
   ========================================================================== */
.action-buttons-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-action-primary {
  flex: 1.2;
  min-width: 130px;
  padding: 0.5rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--primary-hover, #4338ca);
  background-color: var(--primary-color, #4f46e5);
  color: #ffffff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: all var(--transition-fast, 0.15s ease);
}

.btn-action-primary:hover:not(:disabled) {
  background-color: var(--primary-hover, #4338ca);
  transform: translateY(-1px);
}

.btn-action-secondary {
  flex: 1.2;
  min-width: 130px;
  padding: 0.5rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--border-color, #cbd5e1);
  background-color: var(--bg-surface, #ffffff);
  color: var(--text-primary, #0f172a);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: all var(--transition-fast, 0.15s ease);
}

.btn-action-secondary:hover:not(:disabled) {
  background-color: var(--bg-surface-alt, #f8fafc);
  border-color: var(--primary-color, #4f46e5);
  color: var(--primary-color, #4f46e5);
}

html[data-theme="dark"] .btn-action-secondary {
  background-color: #1e293b;
  border-color: #334155;
  color: #f8fafc;
}

html[data-theme="dark"] .btn-action-secondary:hover:not(:disabled) {
  background-color: #334155;
  color: #a5b4fc;
  border-color: #6366f1;
}

.btn-action-ghost {
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--border-color, #e2e8f0);
  background-color: transparent;
  color: var(--text-secondary, #64748b);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast, 0.15s ease);
}

.btn-action-ghost:hover:not(:disabled) {
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--text-primary, #0f172a);
}

html[data-theme="dark"] .btn-action-ghost {
  border-color: #334155;
  color: #94a3b8;
}

html[data-theme="dark"] .btn-action-ghost:hover:not(:disabled) {
  background-color: rgba(255, 255, 255, 0.05);
  color: #f8fafc;
}

.btn-action-primary:disabled,
.btn-action-secondary:disabled,
.btn-action-ghost:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-action-primary svg,
.btn-action-secondary svg,
.btn-action-ghost svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Floating Toast Notification */
.copy-feedback-toast {
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-md, 8px);
  background-color: #1e293b;
  color: #ffffff;
  font-size: 0.76rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
  animation: fadeIn 0.2s ease-in-out;
  align-self: center;
}

.copy-feedback-toast svg {
  stroke: #10b981;
}

html[data-theme="dark"] .copy-feedback-toast {
  background-color: #334155;
  color: #f8fafc;
}

/* ==========================================================================
   11. Educational Guidance Section (3 Columns)
   ========================================================================== */
.educational-guide-section {
  margin-top: 1.5rem;
}

.guide-grid-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 900px) {
  .guide-grid-3col {
    grid-template-columns: 1fr;
  }
}

.guide-card {
  background-color: var(--bg-surface, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: var(--radius-md, 8px);
  padding: 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

html[data-theme="dark"] .guide-card {
  background-color: #1e293b;
  border-color: #334155;
}

.guide-card-header {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.guide-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background-color: rgba(79, 70, 229, 0.1);
  color: var(--primary-color, #4f46e5);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.guide-icon svg {
  width: 14px;
  height: 14px;
}

html[data-theme="dark"] .guide-icon {
  background-color: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
}

.guide-card-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary, #0f172a);
  margin: 0;
}

html[data-theme="dark"] .guide-card-title {
  color: #f8fafc;
}

.guide-card p {
  font-size: 0.77rem;
  color: var(--text-secondary, #64748b);
  line-height: 1.45;
  margin: 0;
}

html[data-theme="dark"] .guide-card p {
  color: #94a3b8;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}