:root {
  /* Clean light palette — trắng sạch + xám neutral, vàng chỉ làm accent */
  --bg-deep: #fafafa;          /* nền chính: gần trắng, neutral */
  --bg-base: #f5f5f4;           /* nền phụ: xám rất nhẹ */
  --bg-card: #ffffff;           /* card: trắng tinh */
  --bg-card-hover: #fafafa;     /* hover: gần trắng */
  --border: #e7e5e4;            /* border: xám neutral nhẹ */
  --border-light: #d6d3d1;      /* border đậm */
  --text-primary: #1c1917;      /* text chính: gần đen ấm */
  --text-secondary: #57534e;    /* text phụ: xám ấm trung */
  --text-tertiary: #a8a29e;     /* text mờ: xám nhạt */
  --gold: #b8860b;              /* vàng đậm cổ điển */
  --gold-light: #d4a017;        /* vàng kim */
  --gold-dark: #8a6610;         /* vàng đậm */
  --gold-glow: rgba(184, 134, 11, 0.08);
  --green: #15803d;             /* xanh emerald */
  --green-bg: rgba(21, 128, 61, 0.08);
  --red: #b91c1c;               /* đỏ */
  --red-bg: rgba(185, 28, 28, 0.08);
  --red-lucky: #c8102e;         /* đỏ son cho CTA */
  --blue: #1e40af;
  --jade: #047857;
  --gradient-gold: linear-gradient(135deg, #d4a017 0%, #b8860b 100%);
  --gradient-luxury: linear-gradient(135deg, #c8102e 0%, #b8860b 100%);
  --gradient-card: linear-gradient(135deg, rgba(184, 134, 11, 0.04) 0%, rgba(255, 255, 255, 0) 100%);
  --shadow-gold: 0 4px 16px rgba(184, 134, 11, 0.12);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 10px 25px rgba(0, 0, 0, 0.08), 0 4px 10px rgba(0, 0, 0, 0.04);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.mono { font-family: 'JetBrains Mono', monospace; }

/* Light theme refinements */
::selection { background: var(--gold); color: #fff; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

.gold-card, .compare-card, .news-card, .price-table-wrap, .calc-card,
.faq-item, .chart-card, .seo-table-wrap, .faq-long-item {
  box-shadow: var(--shadow-card);
}

.gold-card:hover, .compare-card:hover, .news-card:hover, .calc-card:hover,
.faq-item:hover, .chart-card:hover, .faq-long-item:hover {
  box-shadow: var(--shadow-card-hover);
}

/* Background grid pattern - rất nhẹ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 0% 0%, rgba(184, 134, 11, 0.025) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ============ HEADER ============ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-gold);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-gold);
  color: #000;
  font-weight: 900;
}

.logo-text span { color: var(--gold); }

.nav {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav a {
  padding: 10px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s;
  position: relative;
}

.nav a:hover { color: var(--text-primary); background: var(--bg-card); }

.nav a.active { color: var(--gold); }

.nav a.active::after {
  content: '';
  position: absolute;
  bottom: -17px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.icon-btn:hover { background: var(--bg-card-hover); color: var(--gold); }

.btn {
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--gradient-gold);
  color: #000;
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 40px rgba(244, 196, 48, 0.3); }

.btn-ghost {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-ghost:hover { background: var(--bg-card-hover); }

/* ============ TICKER ============ */
.ticker {
  background: var(--bg-base);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  padding: 12px 0;
}

.ticker-track {
  display: flex;
  gap: 48px;
  animation: scroll 60s linear infinite;
  white-space: nowrap;
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.ticker-label {
  color: var(--text-tertiary);
  font-weight: 500;
}

.ticker-price {
  color: var(--text-primary);
  font-weight: 600;
}

.ticker-change {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}

.up { color: var(--green); background: var(--green-bg); }
.down { color: var(--red); background: var(--red-bg); }

/* ============ HERO ============ */
.hero {
  padding: 64px 0 48px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--gold-glow);
  border: 1px solid rgba(244, 196, 48, 0.3);
  border-radius: 100px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-tag .pulse {
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 0 var(--gold);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(244, 196, 48, 0.7); }
  70% { box-shadow: 0 0 0 12px rgba(244, 196, 48, 0); }
  100% { box-shadow: 0 0 0 0 rgba(244, 196, 48, 0); }
}

.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.hero h1 .gold-text {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.hero-stat-label {
  font-size: 12px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.hero-stat-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.hero-stat-value.up { color: var(--green); background: transparent; padding: 0; }
.hero-stat-value.down { color: var(--red); background: transparent; padding: 0; }

/* Hero Card Stack */
.hero-cards {
  position: relative;
  height: 460px;
}

.gold-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 24px;
  width: 280px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(10px);
}

.gold-card.featured {
  background: #ffffff;
  border: 2px solid var(--gold);
  box-shadow: var(--shadow-gold);
  width: 320px;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
}

.gold-card.left {
  top: 20px;
  left: 0;
  transform: rotate(-5deg);
  z-index: 1;
}

.gold-card.right {
  bottom: 20px;
  right: 0;
  transform: rotate(5deg);
  z-index: 2;
}

.gold-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.gold-card-type {
  font-size: 12px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.gold-card-name {
  font-size: 20px;
  font-weight: 700;
}

.gold-card-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-gold);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-gold);
}

.gold-card-price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}

.gold-card-price-label {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.gold-card-trend {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--green-bg);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
}

.sparkline {
  height: 40px;
  width: 100%;
  margin-top: 12px;
}

/* ============ SECTION ============ */
.section {
  padding: 64px 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 20px;
}

.section-title h2 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.section-title p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ============ CHART SECTION ============ */
.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.chart-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, var(--gold-glow), transparent 60%);
  pointer-events: none;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
  position: relative;
}

.chart-info h3 {
  font-size: 14px;
  color: var(--text-tertiary);
  font-weight: 500;
  margin-bottom: 8px;
}

.chart-price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 42px;
  font-weight: 700;
  letter-spacing: -1px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.chart-price-unit {
  font-size: 16px;
  color: var(--text-tertiary);
}

.chart-change {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.timeframe-selector {
  display: flex;
  gap: 4px;
  background: var(--bg-base);
  padding: 4px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.timeframe-btn {
  padding: 8px 14px;
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s;
}

.timeframe-btn:hover { color: var(--text-primary); }

.timeframe-btn.active {
  background: var(--gradient-gold);
  color: #000;
}

.chart-canvas {
  height: 320px;
  width: 100%;
  position: relative;
}

/* ============ TABS ============ */
.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 24px;
  padding: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow-x: auto;
}

.tab {
  padding: 12px 22px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 10px;
  transition: all 0.2s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tab:hover { color: var(--text-primary); }

.tab.active {
  background: var(--bg-card-hover);
  color: var(--gold);
  box-shadow: 0 0 0 1px rgba(244, 196, 48, 0.2);
}

.tab-badge {
  padding: 2px 6px;
  background: rgba(244, 196, 48, 0.15);
  color: var(--gold);
  border-radius: 4px;
  font-size: 10px;
}

/* ============ PRICE TABLE ============ */
.price-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}

.price-table {
  width: 100%;
  border-collapse: collapse;
}

.price-table th {
  text-align: left;
  padding: 16px 24px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--bg-base);
  border-bottom: 1px solid var(--border);
}

.price-table th.right { text-align: right; }
.price-table th.center { text-align: center; }

.price-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.price-table tbody tr {
  transition: background 0.15s;
}

.price-table tbody tr:hover { background: rgba(255, 255, 255, 0.02); }

.price-table tbody tr:last-child td { border-bottom: none; }

.gold-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.gold-symbol {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--gradient-gold);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 13px;
  flex-shrink: 0;
}

.gold-symbol.alt { background: linear-gradient(135deg, #b8860b 0%, #daa520 100%); }
.gold-symbol.alt2 { background: linear-gradient(135deg, #cd7f32 0%, #e6a25c 100%); }

.gold-name { font-weight: 600; }
.gold-detail { font-size: 12px; color: var(--text-tertiary); margin-top: 2px; }

.price-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  text-align: right;
  font-size: 15px;
}

.change-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 600;
}

.mini-spark {
  width: 80px;
  height: 32px;
}

/* ============ CALCULATOR ============ */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
}

.calc-card.result {
  background: linear-gradient(135deg, rgba(244, 196, 48, 0.08) 0%, rgba(244, 196, 48, 0.02) 100%);
  border: 1px solid rgba(244, 196, 48, 0.3);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.form-input,
.form-select {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  transition: all 0.2s;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}

.form-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 12px;
}

.calc-result-label {
  font-size: 13px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.calc-result-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -1.5px;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 4px;
  line-height: 1;
}

.calc-result-unit {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 24px;
}

.calc-breakdown {
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 14px;
}

.calc-row span:first-child { color: var(--text-tertiary); }
.calc-row span:last-child { font-weight: 600; font-family: 'JetBrains Mono', monospace; }

/* ============ COMPARE GRID ============ */
.compare-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
  cursor: pointer;
}

.compare-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
}

.compare-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-gold);
  opacity: 0;
  transition: opacity 0.2s;
}

.compare-card:hover::before { opacity: 1; }

.compare-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: #000;
  margin-bottom: 20px;
  box-shadow: var(--shadow-gold);
}

.compare-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.compare-card .desc { font-size: 13px; color: var(--text-tertiary); margin-bottom: 16px; }

.compare-price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.compare-trend {
  font-size: 13px;
  font-weight: 600;
}

/* ============ NEWS ============ */
.news-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 24px;
}

.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}

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

.news-card.featured { grid-row: span 2; }

.news-img {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #f5f5f4 0%, #e7e5e4 100%);
  position: relative;
  overflow: hidden;
}

.news-card.featured .news-img { height: 360px; }

.news-img::after {
  content: '📰';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  opacity: 0.3;
}

.news-content { padding: 20px; flex: 1; display: flex; flex-direction: column; }

.news-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--gold-glow);
  color: var(--gold);
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  align-self: flex-start;
}

.news-card h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.news-card.featured h3 { font-size: 22px; }

.news-card p {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
  flex: 1;
}

.news-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ============ SEO CONTENT SECTIONS ============ */
.seo-section {
  padding: 48px 0;
}

.seo-content {
  max-width: 980px;
  margin: 0 auto;
}

.seo-content h2 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  color: var(--text-primary);
  line-height: 1.25;
}

.seo-content h2 .icon {
  display: inline-flex;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(244, 196, 48, 0.15);
  color: var(--gold);
  align-items: center;
  justify-content: center;
  font-size: 16px;
  margin-right: 10px;
  vertical-align: -6px;
}

.seo-content h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin: 28px 0 12px;
  color: var(--text-primary);
}

.seo-content p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 14px;
}

.seo-content p strong, .seo-content strong {
  color: var(--text-primary);
  font-weight: 700;
}

.seo-content a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(244, 196, 48, 0.3);
}

.seo-content a:hover { text-decoration-color: var(--gold); }

.seo-content ul, .seo-content ol {
  margin: 12px 0 18px 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}

.seo-content ul li, .seo-content ol li { margin-bottom: 8px; }
.seo-content ul li::marker { color: var(--gold); }

.seo-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  margin: 20px 0 28px;
}

.seo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.seo-table caption {
  padding: 14px 18px;
  background: var(--bg-base);
  text-align: left;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.seo-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--bg-base);
  border-bottom: 1px solid var(--border);
}

.seo-table th.right { text-align: right; }
.seo-table th.center { text-align: center; }

.seo-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.seo-table td.right {
  text-align: right;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--text-primary);
}

.seo-table td.center { text-align: center; }
.seo-table tbody tr:last-child td { border-bottom: none; }
.seo-table tbody tr:hover { background: rgba(244, 196, 48, 0.02); }
.seo-table td .label { font-weight: 700; color: var(--text-primary); }

.seo-note {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: 8px;
  padding: 18px 22px;
  margin: 24px 0;
}

.seo-note h4 {
  font-size: 14px;
  font-weight: 800;
  color: var(--gold);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.seo-note p {
  margin: 0 0 8px;
  font-size: 14px;
}

.seo-note p:last-child { margin-bottom: 0; }

.seo-note ul { margin: 8px 0 0 20px; font-size: 14px; }

.world-gold-banner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: 12px;
  padding: 24px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin: 20px 0 28px;
  box-shadow: var(--shadow-card);
}

.wgb-info { flex: 1; min-width: 220px; }
.wgb-label { font-size: 12px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.wgb-price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.wgb-unit { font-size: 14px; color: var(--text-tertiary); margin-top: 6px; }

.wgb-stats { display: flex; gap: 24px; }
.wgb-stat-label { font-size: 11px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.wgb-stat-val { font-family: 'JetBrains Mono', monospace; font-size: 16px; font-weight: 700; }
.wgb-stat-val.up { color: var(--green); }

/* Long FAQ */
.faq-long-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 28px;
  margin-bottom: 14px;
}

.faq-long-item h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 14px !important;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-primary) !important;
}

.faq-long-item h3 .q-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--gradient-gold);
  color: #000;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  flex-shrink: 0;
}

.faq-long-item p {
  font-size: 14.5px !important;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0 0 10px;
}

.faq-long-item p:last-child { margin-bottom: 0; }

.faq-long-item ul, .faq-long-item ol {
  margin: 10px 0 10px 28px;
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-long-item ul li, .faq-long-item ol li { margin-bottom: 6px; }

/* ============ FAQ ============ */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 24px;
  cursor: pointer;
  transition: all 0.2s;
}

.faq-item:hover { border-color: var(--border-light); }

.faq-item.open { border-color: var(--gold); background: var(--bg-card-hover); }

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-weight: 600;
  font-size: 15px;
}

.faq-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-base);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}

.faq-item.open .faq-toggle {
  background: var(--gradient-gold);
  color: #000;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ============ CTA ============ */
.cta {
  margin: 64px 0;
  padding: 48px;
  background: #1c1917;
  border: 1px solid var(--border);
  border-radius: 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.cta::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-gold);
}

.cta h2 { color: #fff !important; }
.cta p { color: rgba(255, 255, 255, 0.7) !important; }
.cta .btn-ghost { background: rgba(255, 255, 255, 0.08); color: #fff; border-color: rgba(255, 255, 255, 0.15); }
.cta .btn-ghost:hover { background: rgba(255, 255, 255, 0.15); }
.cta .btn-primary { background: var(--gradient-gold); color: #fff; }

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, var(--gold-glow), transparent 70%);
}

.cta-inner { position: relative; z-index: 1; }

.cta h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.cta p {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 540px;
  margin: 0 auto 28px;
}

.cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============ FOOTER ============ */
.footer {
  background: #1c1917;
  border-top: 1px solid #292524;
  padding: 64px 0 32px;
  margin-top: 64px;
  color: #d6d3d1;
}

.footer .logo, .footer .logo-text { color: #fff !important; }
.footer-about p { color: #a8a29e !important; }
.footer h4 { color: #fff !important; }
.footer ul a { color: #a8a29e !important; }
.footer ul a:hover { color: var(--gold-light) !important; }
.footer-bottom { color: #78716c !important; border-top-color: #292524 !important; }
.footer .social-link { background: rgba(255,255,255,0.05); border-color: rgba(255, 255, 255, 0.1); color: #a8a29e; }
.footer .social-link:hover { background: var(--gradient-gold); color: #fff; border-color: var(--gold); }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-about p {
  color: var(--text-tertiary);
  font-size: 14px;
  margin: 16px 0;
}

.social-links { display: flex; gap: 10px; }

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s;
}

.social-link:hover { background: var(--gradient-gold); color: #000; border-color: var(--gold); }

.footer h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.footer ul { list-style: none; }

.footer ul li { margin-bottom: 10px; }

.footer ul a {
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.footer ul a:hover { color: var(--gold); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  color: var(--text-tertiary);
  font-size: 13px;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-cards { display: none; }
  .compare-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .news-card.featured { grid-row: auto; grid-column: span 2; }
  .news-card.featured .news-img { height: 200px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .calc-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .compare-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .news-card.featured { grid-column: auto; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; }
  .section { padding: 48px 0; }
  .seo-section { padding: 32px 0; }
  .seo-content h2 { font-size: 22px; }
  .seo-content h3 { font-size: 17px; }
  .seo-table th, .seo-table td { padding: 10px 12px; font-size: 13px; }
  .world-gold-banner { padding: 18px; }
  .wgb-price { font-size: 28px; }
  .wgb-stats { gap: 16px; }
  .faq-long-item { padding: 18px 20px; }
  .faq-long-item h3 { font-size: 15px; }
  .faq-long-item p { font-size: 13.5px !important; }
  .hero { padding: 32px 0; }
  .section-title h2, .cta h2 { font-size: 28px; }
  .chart-price { font-size: 32px; }
  .price-table th, .price-table td { padding: 12px; font-size: 13px; }
  .gold-detail { display: none; }
}

/* ============ UTILS ============ */
.fade-in { animation: fadeIn 0.6s ease forwards; opacity: 0; }
@keyframes fadeIn { to { opacity: 1; transform: translateY(0); } }
.fade-in { transform: translateY(20px); }