/* ==========================================================================
   МОСТ ЭПОХ: РОССИЯ И ЕВРОПА В XVI–XVII ВЕКАХ
   Минималистичная музейная эстетика: глубокий графит, благородное золото,
   чистая академическая типографика и подлинные фотографии
   ========================================================================== */

:root {
  --bg-primary: #0a0c12;
  --bg-surface: #10141f;
  --bg-surface-elevated: #161b29;
  --bg-glass: rgba(16, 20, 31, 0.88);

  --border-subtle: rgba(203, 161, 53, 0.16);
  --border-gold: rgba(203, 161, 53, 0.45);
  --border-hairline: rgba(255, 255, 255, 0.08);

  --gold-primary: #cba135;
  --gold-light: #f0cf6d;
  --gold-dark: #82661d;
  --gold-glow: rgba(203, 161, 53, 0.18);

  --russia-ruby: #dc2626;
  --russia-ruby-bg: rgba(220, 38, 38, 0.06);
  --russia-border: rgba(220, 38, 38, 0.25);

  --europe-sapphire: #3b82f6;
  --europe-sapphire-bg: rgba(59, 130, 246, 0.06);
  --europe-border: rgba(59, 130, 246, 0.25);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-gold: #e2c058;

  --font-serif: 'Cinzel', serif;
  --font-classic: 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Базовые настройки */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* SVG Иконки */
.svg-icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.logo-emblem-svg {
  color: var(--gold-primary);
  flex-shrink: 0;
}

/* Музейный тонкий скроллбар */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: #1e2638;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gold-dark);
}

/* ==========================================================================
   ШАПКА САЙТА (HEADER)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 12, 18, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-titles {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold-light);
}

.logo-sub {
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  text-transform: uppercase;
}

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

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 6px;
  transition: var(--transition-fast);
}

.nav-link .nav-svg {
  color: var(--gold-primary);
  opacity: 0.75;
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--gold-light);
  background: rgba(203, 161, 53, 0.08);
}

.nav-link:hover .nav-svg {
  opacity: 1;
  color: var(--gold-light);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tool-btn {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.tool-btn:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
}

.header-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 1.1rem;
  background: linear-gradient(135deg, #cba135 0%, #997818 100%);
  color: #0a0c12;
  font-size: 0.84rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 6px;
  letter-spacing: 0.04em;
  transition: var(--transition-fast);
}

.header-cta-btn .btn-svg {
  color: #0a0c12;
}

.header-cta-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
}

/* ==========================================================================
   КНОПКИ И ОБЩИЕ ЭЛЕМЕНТЫ
   ========================================================================== */
.primary-gold-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1.6rem;
  background: linear-gradient(135deg, #dfb94a 0%, #cba135 50%, #8c6e1c 100%);
  color: #0a0c12;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: var(--transition-smooth);
}

.primary-gold-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(203, 161, 53, 0.35);
}

.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border-hairline);
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.secondary-btn:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
  background: rgba(203, 161, 53, 0.05);
}

.section-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-header-centered {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--gold-primary);
  text-transform: uppercase;
  margin-bottom: 0.65rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 0.85rem;
}

.section-desc {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   1. HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-content {
  max-width: 940px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.95rem;
  background: rgba(203, 161, 53, 0.08);
  border: 1px solid var(--border-gold);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--gold-light);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4.8vw, 3.8rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: 0.02em;
  margin-bottom: 1.25rem;
  color: #fff;
}

.hero-highlight {
  background: linear-gradient(135deg, #f0cf6d 0%, #cba135 60%, #9c7b1f 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 2.25rem auto;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-stats-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 1.25rem 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  max-width: 860px;
  margin: 0 auto 2.5rem auto;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.stat-num {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold-light);
}

.stat-label {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border-hairline);
}

.hero-quote-card {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.25rem 1.75rem;
  background: rgba(16, 20, 31, 0.6);
  border-left: 3px solid var(--gold-primary);
  border-radius: 0 8px 8px 0;
  text-align: left;
}

.quote-symbol {
  font-family: var(--font-classic);
  font-size: 1.8rem;
  line-height: 1;
  color: var(--gold-primary);
  opacity: 0.7;
}

.quote-text {
  font-family: var(--font-classic);
  font-style: italic;
  font-size: 1.02rem;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.quote-author {
  font-size: 0.8rem;
  color: var(--gold-primary);
  font-weight: 600;
}

/* ==========================================================================
   2. CURATED GALLERY SECTION (МУЗЕЙНЫЕ ФОТОГРАФИИ)
   ========================================================================== */
.gallery-section {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.exhibit-nav-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

.exhibit-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem 1.2rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-hairline);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: left;
}

.exhibit-tab:hover {
  border-color: var(--border-gold);
  background: rgba(203, 161, 53, 0.04);
}

.exhibit-tab.active {
  background: rgba(203, 161, 53, 0.08);
  border-color: var(--gold-primary);
}

.tab-header-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.tab-hall-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-primary);
  transition: var(--transition-fast);
}

.exhibit-tab:hover .tab-hall-icon,
.exhibit-tab.active .tab-hall-icon {
  color: var(--gold-light);
}

.tab-hall-num {
  font-family: var(--font-serif);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--gold-primary);
  text-transform: uppercase;
}

.tab-name {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.tab-sub {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.curated-exhibit-stage {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stage-header {
  border-bottom: 1px solid var(--border-hairline);
  padding-bottom: 1rem;
}

.stage-hall-tag {
  font-family: var(--font-serif);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--gold-primary);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.stage-title {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.25rem;
}

.stage-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Сплит-витрины (Россия vs Европа) */
.split-exhibition-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.artifact-curated-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-hairline);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  transition: var(--transition-fast);
}

.artifact-curated-card.russia-side {
  border-top: 3px solid var(--russia-ruby);
}

.artifact-curated-card.europe-side {
  border-top: 3px solid var(--europe-sapphire);
}

.artifact-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.artifact-provenance-badge {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.side-flag-tag {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
}

.russia-side .side-flag-tag {
  background: var(--russia-ruby-bg);
  color: #f87171;
  border: 1px solid var(--russia-border);
}

.europe-side .side-flag-tag {
  background: var(--europe-sapphire-bg);
  color: #60a5fa;
  border: 1px solid var(--europe-border);
}

.inv-num {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: monospace;
}

.artifact-period {
  font-size: 0.78rem;
  color: var(--text-gold);
  font-weight: 600;
}

/* Музейное паспарту фотографии */
.artifact-photo-wrap {
  position: relative;
  width: 100%;
  height: 340px;
  border-radius: 8px;
  overflow: hidden;
  background: #06070a;
  border: 1px solid var(--border-hairline);
  cursor: pointer;
}

.artifact-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.artifact-photo-wrap:hover .artifact-photo {
  transform: scale(1.03);
}

.artifact-photo.img-missing {
  display: none;
}

.photo-fallback-slate {
  display: none;
  width: 100%;
  height: 100%;
  padding: 1.5rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: #0a0d14;
}

.artifact-photo-wrap.has-fallback .photo-fallback-slate {
  display: flex;
}

.fallback-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.fallback-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.fallback-hint code {
  color: var(--gold-light);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
}

.photo-zoom-hint {
  position: absolute;
  bottom: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.7rem;
  background: rgba(8, 10, 16, 0.8);
  backdrop-filter: blur(6px);
  border-radius: 4px;
  font-size: 0.74rem;
  color: var(--text-secondary);
  pointer-events: none;
  transition: var(--transition-fast);
}

.artifact-photo-wrap:hover .photo-zoom-hint {
  color: var(--gold-light);
}

.photo-caption-bar {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: -0.4rem;
}

.artifact-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.artifact-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: #fff;
  line-height: 1.3;
}

.artifact-origin {
  font-size: 0.82rem;
  color: var(--gold-primary);
  font-weight: 600;
  margin-top: -0.6rem;
}

.artifact-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.artifact-highlights-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

.highlights-header {
  font-family: var(--font-serif);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--gold-light);
  text-transform: uppercase;
  margin-bottom: 0.65rem;
}

.highlights-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.highlight-item {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.highlight-title {
  color: #fff;
  margin-right: 0.25rem;
}

.artifact-context-box {
  padding: 0.75rem 1rem;
  background: rgba(203, 161, 53, 0.05);
  border-left: 2px solid var(--gold-primary);
  border-radius: 0 6px 6px 0;
  font-size: 0.84rem;
  color: var(--text-gold);
  line-height: 1.55;
}

.artifact-quote-card {
  font-family: var(--font-classic);
  font-style: italic;
  font-size: 0.88rem;
  color: #e2e8f0;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 6px;
}

/* Общий вывод зала */
.exhibit-synthesis-card {
  padding: 1.5rem 1.75rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}

.synthesis-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-serif);
  font-size: 0.74rem;
  letter-spacing: 0.15em;
  color: var(--gold-primary);
  margin-bottom: 0.5rem;
}

.synthesis-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.synthesis-text strong {
  color: #fff;
}

/* ==========================================================================
   LIGHTBOX MODAL ДЛЯ ФОТОГРАФИЙ
   ========================================================================== */
.lightbox-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(5, 7, 10, 0.94);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.lightbox-backdrop.visible {
  opacity: 1;
  visibility: visible;
}

.lightbox-dialog {
  max-width: 1000px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
}

.lightbox-close-btn {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
}

.lightbox-img-wrap {
  width: 100%;
  max-height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  border: 1px solid var(--border-hairline);
  border-radius: 8px;
  overflow: hidden;
}

.lightbox-img-wrap img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
}

.lightbox-info {
  text-align: center;
}

.lightbox-info h4 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: #fff;
  margin-bottom: 0.25rem;
}

.lightbox-info p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   3. SYNCHRONOUS TIMELINE SECTION
   ========================================================================== */
.timeline-section {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-subtle);
}

.timeline-controls-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.timeline-filters-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.century-toggle-group {
  display: flex;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 6px;
  padding: 0.25rem;
  gap: 0.25rem;
}

.century-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.95rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.84rem;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.century-btn .svg-icon {
  color: var(--gold-primary);
  transition: var(--transition-fast);
}

.century-btn:hover {
  color: #fff;
}

.century-btn:hover .svg-icon {
  color: var(--gold-light);
}

.century-btn.active {
  background: var(--gold-primary);
  color: #0a0c12;
}

.century-btn.active .svg-icon {
  color: #0a0c12;
}

.timeline-search-box {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 320px;
}

.search-icon {
  position: absolute;
  left: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
}

.timeline-search-box input {
  width: 100%;
  padding: 0.55rem 2.2rem 0.55rem 2.4rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 0.86rem;
  outline: none;
  transition: var(--transition-fast);
}

.timeline-search-box input:focus {
  border-color: var(--gold-primary);
}

.clear-btn {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-chips-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.cat-chip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-primary);
  transition: var(--transition-fast);
}

.cat-chip:hover {
  border-color: var(--border-gold);
  color: var(--gold-light);
}

.cat-chip:hover .cat-chip-icon {
  color: var(--gold-light);
}

.cat-chip.active {
  background: rgba(203, 161, 53, 0.12);
  border-color: var(--gold-primary);
  color: var(--gold-light);
  font-weight: 600;
}

.cat-chip.active .cat-chip-icon {
  color: var(--gold-light);
}

/* Двусторонняя лента времени */
.timeline-dual-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-headers-grid {
  display: grid;
  grid-template-columns: 1fr 220px 1fr;
  gap: 1.5rem;
  text-align: center;
  padding: 1.1rem 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 8px;
}

.timeline-col-header h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: #fff;
  margin-bottom: 0.15rem;
}

.timeline-col-header .header-sub {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.russia-header { border-left: 3px solid var(--russia-ruby); }
.europe-header { border-right: 3px solid var(--europe-sapphire); }

.timeline-events-list {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.sync-event-row {
  display: grid;
  grid-template-columns: 1fr 220px 1fr;
  gap: 1.5rem;
  align-items: center;
}

.timeline-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 8px;
  padding: 1.35rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.timeline-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-gold);
}

.timeline-card.russia-card:hover { border-color: rgba(220, 38, 38, 0.5); }
.timeline-card.europe-card:hover { border-color: rgba(59, 130, 246, 0.5); }

.card-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.badge-year {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--gold-light);
}

.badge-cat {
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 0.45rem;
  line-height: 1.35;
}

.card-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 0.7rem;
}

.card-tags {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.tag {
  font-size: 0.7rem;
  color: var(--text-gold);
}

.card-more-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.5rem;
  font-size: 0.76rem;
  color: var(--gold-light);
  font-weight: 600;
}

/* Центральный мост синхронии */
.sync-center-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  text-align: center;
}

.sync-connector-line {
  position: absolute;
  top: -25px;
  bottom: -25px;
  width: 1px;
  background: var(--border-hairline);
  z-index: 1;
}

.sync-year-circle {
  position: relative;
  z-index: 2;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--gold-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gold-light);
  margin-bottom: 0.65rem;
}

.sync-bridge-pill {
  position: relative;
  z-index: 2;
  padding: 0.55rem 0.75rem;
  background: rgba(203, 161, 53, 0.06);
  border: 1px dashed var(--border-gold);
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition-fast);
  max-width: 210px;
}

.sync-bridge-pill:hover {
  background: rgba(203, 161, 53, 0.14);
  border-color: var(--gold-primary);
}

.pill-text {
  font-size: 0.72rem;
  color: var(--text-secondary);
  display: block;
  line-height: 1.35;
  margin-bottom: 0.35rem;
}

.pill-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.7rem;
  color: var(--gold-light);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   4. MAP SECTION
   ========================================================================== */
.map-section {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.map-section-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1.75rem;
  align-items: stretch;
}

.map-interactive-wrapper {
  background: var(--bg-primary);
  border: 1px solid var(--border-hairline);
  border-radius: 10px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.map-toolbar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.toolbar-label {
  font-size: 0.76rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

.map-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-hairline);
  border-radius: 4px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.map-filter-btn .svg-icon {
  color: var(--gold-primary);
  transition: var(--transition-fast);
}

.map-filter-btn:hover {
  border-color: var(--border-gold);
  color: var(--gold-light);
}

.map-filter-btn:hover .svg-icon {
  color: var(--gold-light);
}

.map-filter-btn.active {
  background: rgba(203, 161, 53, 0.12);
  border-color: var(--gold-primary);
  color: var(--gold-light);
  font-weight: 600;
}

.map-filter-btn.active .svg-icon {
  color: var(--gold-light);
}

.map-viewport {
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  background: #090b11;
}

.historical-map-svg {
  width: 100%;
  height: auto;
  display: block;
}

.hub-node {
  cursor: pointer;
  transition: var(--transition-fast);
}

.hub-pulse {
  fill: rgba(203, 161, 53, 0.2);
  stroke: var(--gold-primary);
  stroke-width: 1.2;
}

.hub-center {
  fill: #fff;
}

.hub-label {
  font-family: var(--font-serif);
  font-size: 11px;
  font-weight: 700;
  fill: #fff;
  text-anchor: middle;
}

.hub-node:hover .hub-center,
.hub-node.active .hub-center {
  fill: var(--gold-light);
}

.hub-node.active .hub-pulse {
  fill: rgba(203, 161, 53, 0.45);
}

.route-item.hidden {
  display: none;
}

/* Досье выбранного города на карте */
.hub-dossier-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-hairline);
  border-radius: 10px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  height: 100%;
}

.dossier-tag {
  font-family: var(--font-serif);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--gold-primary);
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.dossier-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
}

.dossier-role {
  font-size: 0.86rem;
  color: var(--text-gold);
  font-weight: 600;
}

.dossier-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.dossier-facts h4 {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  color: var(--gold-light);
  margin-bottom: 0.5rem;
}

.dossier-facts ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dossier-facts li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.dossier-facts li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--gold-primary);
  font-size: 0.9rem;
}

/* ==========================================================================
   5. COMPARATIVE MATRIX SECTION
   ========================================================================== */
.matrix-section {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-subtle);
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.matrix-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 10px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  transition: var(--transition-fast);
}

.matrix-card:hover {
  border-color: var(--border-gold);
}

.matrix-badge {
  font-family: var(--font-serif);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--gold-primary);
  text-transform: uppercase;
}

.matrix-card-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: #fff;
  line-height: 1.3;
}

.matrix-comparison-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.split-side {
  padding: 0.95rem;
  border-radius: 6px;
  font-size: 0.85rem;
}

.split-side h4 {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  margin-bottom: 0.35rem;
}

.split-side.ru {
  background: var(--russia-ruby-bg);
  border: 1px solid var(--russia-border);
}
.split-side.ru h4 { color: #f87171; }

.split-side.eu {
  background: var(--europe-sapphire-bg);
  border: 1px solid var(--europe-border);
}
.split-side.eu h4 { color: #60a5fa; }

.matrix-conclusion {
  padding: 0.8rem 1rem;
  background: rgba(203, 161, 53, 0.06);
  border-left: 2px solid var(--gold-primary);
  border-radius: 0 4px 4px 0;
  font-size: 0.84rem;
  color: var(--text-gold);
}

/* ==========================================================================
   6. QUIZ / DIPLOMATIC EXAM SECTION
   ========================================================================== */
.quiz-section {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.quiz-card-wrapper {
  max-width: 760px;
  margin: 0 auto;
  background: var(--bg-primary);
  border: 1px solid var(--border-hairline);
  border-radius: 12px;
  padding: 2rem;
}

.quiz-progress-bar-wrap {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 0.85rem;
}

.quiz-progress-fill {
  height: 100%;
  background: var(--gold-primary);
  transition: width 0.3s ease;
}

.quiz-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1.1rem;
}

.quiz-question-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 1.35rem;
}

.quiz-options-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.35rem;
}

.quiz-opt-btn {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1.15rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.92rem;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-fast);
}

.quiz-opt-btn:hover:not(:disabled) {
  border-color: var(--border-gold);
  background: rgba(203, 161, 53, 0.06);
}

.opt-letter {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(203, 161, 53, 0.12);
  border: 1px solid var(--gold-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gold-light);
  flex-shrink: 0;
}

.quiz-opt-btn.correct {
  border-color: #10b981 !important;
  background: rgba(16, 185, 129, 0.12) !important;
}

.quiz-opt-btn.correct .opt-letter {
  background: #10b981;
  color: #fff;
  border-color: #10b981;
}

.quiz-opt-btn.wrong {
  border-color: #ef4444 !important;
  background: rgba(239, 68, 68, 0.12) !important;
}

.quiz-opt-btn.wrong .opt-letter {
  background: #ef4444;
  color: #fff;
  border-color: #ef4444;
}

.quiz-feedback-box {
  padding: 1.1rem;
  background: var(--bg-surface);
  border-radius: 8px;
  border: 1px solid var(--border-hairline);
  margin-top: 1rem;
}

.feedback-badge {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.feedback-badge.correct { color: #10b981; }
.feedback-badge.wrong { color: #f87171; }

.feedback-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.1rem;
}

/* Печатная грамота */
.quiz-results-container {
  max-width: 800px;
  margin: 0 auto;
}

.diploma-parchment-frame {
  background: #0d1017;
  border: 4px double var(--gold-primary);
  border-radius: 8px;
  padding: 2.25rem;
  position: relative;
  margin-bottom: 1.75rem;
}

.diploma-inner-border {
  border: 1px solid rgba(203, 161, 53, 0.35);
  padding: 1.75rem;
  border-radius: 4px;
  position: relative;
  text-align: center;
}

.diploma-wax-seal {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #7a1515;
  border: 2px solid var(--gold-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.seal-icon {
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.seal-text { font-size: 0.38rem; color: #f5ebd3; font-weight: 700; text-align: center; }

.diploma-header .diploma-sub {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  color: var(--gold-primary);
  text-transform: uppercase;
}

.diploma-header .diploma-title {
  font-family: var(--font-serif);
  font-size: 1.95rem;
  font-weight: 800;
  color: #fff;
  margin: 0.3rem 0;
}

.diploma-divider-line {
  width: 60px;
  height: 1px;
  background: var(--gold-primary);
  margin: 0.75rem auto 1.25rem auto;
}

.diploma-body-intro {
  font-family: var(--font-classic);
  font-style: italic;
  font-size: 1.02rem;
  color: var(--text-primary);
  max-width: 600px;
  margin: 0 auto 1.25rem auto;
  line-height: 1.55;
}

.student-name-input-wrap {
  max-width: 380px;
  margin: 0 auto 1.35rem auto;
  text-align: left;
}

.student-name-input-wrap label {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.25rem;
}

.student-name-input-wrap input {
  width: 100%;
  padding: 0.55rem 0.85rem;
  background: rgba(0, 0, 0, 0.4);
  border: 1px dashed var(--border-gold);
  border-radius: 4px;
  color: var(--gold-light);
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  text-align: center;
  outline: none;
}

.diploma-rank-badge {
  padding: 1.1rem;
  background: rgba(203, 161, 53, 0.06);
  border: 1px solid var(--border-gold);
  border-radius: 6px;
  max-width: 560px;
  margin: 0 auto 1.35rem auto;
}

.rank-label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--gold-primary);
  font-weight: 700;
}

.rank-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--gold-light);
  margin: 0.2rem 0 0.4rem 0;
}

.rank-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.diploma-score-summary {
  font-size: 0.92rem;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.diploma-date-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-hairline);
  padding-top: 0.85rem;
  font-size: 0.76rem;
  color: var(--text-muted);
}

.results-actions-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   7. SOURCES & BIBLIOGRAPHY SECTION
   ========================================================================== */
.sources-section {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-subtle);
}

.sources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.source-card {
  padding: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 8px;
}

.source-card h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--gold-light);
  margin-bottom: 0.85rem;
}

.source-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.source-card li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  padding-bottom: 0.45rem;
}

/* ==========================================================================
   MODAL WINDOW FOR TIMELINE
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(4, 6, 10, 0.88);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.modal-backdrop.visible {
  opacity: 1;
  visibility: visible;
}

.timeline-modal-window {
  background: var(--bg-surface);
  border: 1px solid var(--border-gold);
  border-radius: 12px;
  max-width: 840px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.7);
}

.modal-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-hairline);
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close-btn:hover {
  background: #dc2626;
  color: #fff;
}

.modal-header-hero {
  margin-bottom: 1.5rem;
}

.modal-badges {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 0.45rem;
}

.modal-badges .badge-year.big {
  font-size: 1.05rem;
  padding: 0.2rem 0.55rem;
  background: rgba(203, 161, 53, 0.12);
  border: 1px solid var(--gold-primary);
  border-radius: 4px;
}

.modal-hero-title {
  font-family: var(--font-serif);
  font-size: 1.65rem;
  color: #fff;
}

.modal-comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
  margin-bottom: 1.35rem;
}

.modal-col {
  padding: 1.1rem;
  border-radius: 8px;
}

.modal-col.russia-col {
  background: var(--russia-ruby-bg);
  border: 1px solid var(--russia-border);
}

.modal-col.europe-col {
  background: var(--europe-sapphire-bg);
  border: 1px solid var(--europe-border);
}

.col-flag-banner {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.65rem;
}

.col-flag-banner h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: #fff;
}

.modal-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.modal-synchro-box {
  padding: 1.1rem;
  background: rgba(203, 161, 53, 0.06);
  border: 1px solid var(--border-gold);
  border-radius: 8px;
  margin-bottom: 1.35rem;
}

.modal-synchro-box .box-header {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--gold-light);
  margin-bottom: 0.45rem;
}

.synchro-deep-text {
  font-size: 0.92rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.modal-sources-box {
  padding: 0.95rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 6px;
  margin-bottom: 1.35rem;
}

.modal-sources-box h4 {
  font-size: 0.84rem;
  color: var(--text-gold);
  margin-bottom: 0.45rem;
}

.modal-sources-box ul {
  padding-left: 1.1rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.modal-footer-action {
  text-align: right;
}

/* ==========================================================================
   ПОДВАЛ САЙТА (FOOTER)
   ========================================================================== */
.site-footer {
  background: #06070a;
  border-top: 1px solid var(--border-subtle);
  padding: 2.5rem 1.5rem 1.5rem 1.5rem;
}

.footer-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-hairline);
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gold-light);
  margin-bottom: 0.25rem;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: 0.82rem;
  text-decoration: none;
}

.back-to-top-btn:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
}

.footer-bottom-line {
  max-width: 1320px;
  margin: 1rem auto 0 auto;
  font-size: 0.76rem;
  color: var(--text-muted);
  text-align: center;
}

/* ==========================================================================
   АДАПТИВНОСТЬ
   ========================================================================== */
@media (max-width: 1024px) {
  .split-exhibition-grid {
    grid-template-columns: 1fr;
  }
  .map-section-grid {
    grid-template-columns: 1fr;
  }
  .matrix-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .exhibit-nav-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .sources-grid {
    grid-template-columns: 1fr;
  }
  .timeline-headers-grid {
    display: none;
  }
  .sync-event-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .sync-connector-line {
    display: none;
  }
  .modal-comparison-grid {
    grid-template-columns: 1fr;
  }
  .main-nav {
    display: none;
  }
}

/* Печать грамоты */
@media print {
  body * {
    visibility: hidden;
  }
  #diploma-printable, #diploma-printable * {
    visibility: visible;
  }
  #diploma-printable {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    margin: 0;
    padding: 2cm;
    background: #fff !important;
    color: #000 !important;
    border: 3px double #000 !important;
  }
  .diploma-title, .rank-title, .diploma-sub {
    color: #000 !important;
  }
  .diploma-inner-border {
    border-color: #000 !important;
  }
  .student-name-input-wrap input {
    color: #000 !important;
    border-bottom: 2px solid #000 !important;
  }
}