/* indrachowk.com - Luxury Bullion Styling */
:root {
  --bg-primary: #0a0d14;
  --bg-secondary: #121824;
  --bg-card: #182030;
  --bg-card-hover: #1f2b40;
  --border-color: #26334d;
  --text-main: #f0f4f8;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --gold-primary: #f59e0b;
  --gold-glow: #d97706;
  --gold-gradient: linear-gradient(135deg, #fde68a 0%, #f59e0b 50%, #b45309 100%);
  --gold-bg-subtle: rgba(245, 158, 11, 0.08);
  --gold-border-subtle: rgba(245, 158, 11, 0.25);

  --silver-primary: #cbd5e1;
  --silver-glow: #94a3b8;
  --silver-gradient: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #64748b 100%);
  --silver-bg-subtle: rgba(203, 213, 225, 0.08);
  --silver-border-subtle: rgba(203, 213, 225, 0.25);

  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-green-bg: rgba(16, 185, 129, 0.12);
  --accent-red-bg: rgba(239, 68, 68, 0.12);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header & Nav */
header.site-header {
  background: rgba(10, 13, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--gold-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-weight: 800;
  font-size: 1.25rem;
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.brand-text span {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
}

nav.main-nav {
  display: flex;
  gap: 1.25rem;
}

nav.main-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

nav.main-nav a:hover,
nav.main-nav a.active {
  color: #fff;
  background-color: var(--bg-card);
}

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

nav.main-nav a.silver-link.active {
  color: var(--silver-primary);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
  flex: 1;
}

/* Live Market Banner */
.market-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.pulse-dot {
  width: 9px;
  height: 9px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.last-updated-text {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.stale-warning-banner {
  display: none;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #fde68a;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

/* Hero Section */
.hero-header {
  margin-bottom: 2.5rem;
}

.hero-header h2 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.hero-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Rate Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.rate-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.rate-card:hover {
  transform: translateY(-2px);
}

.rate-card.gold-card {
  border-top: 4px solid var(--gold-primary);
}

.rate-card.silver-card {
  border-top: 4px solid var(--silver-primary);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.metal-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
}

.gold-badge {
  background: var(--gold-bg-subtle);
  color: var(--gold-primary);
  border: 1px solid var(--gold-border-subtle);
}

.silver-badge {
  background: var(--silver-bg-subtle);
  color: var(--silver-primary);
  border: 1px solid var(--silver-border-subtle);
}

.metal-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.nepali-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.primary-price {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0.75rem 0 0.25rem 0;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.price-unit {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dim);
}

.price-change-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
}

.change-up {
  background: var(--accent-green-bg);
  color: var(--accent-green);
}

.change-down {
  background: var(--accent-red-bg);
  color: var(--accent-red);
}

.change-neutral {
  background: var(--bg-secondary);
  color: var(--text-muted);
}

.card-divider {
  border: 0;
  height: 1px;
  background: var(--border-color);
  margin: 1rem 0;
}

.sub-rates-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.sub-rate-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
}

.sub-rate-label {
  color: var(--text-muted);
}

.sub-rate-val {
  font-weight: 600;
  color: var(--text-main);
}

/* Unit Conversion Table */
.section-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 2.5rem;
}

.section-wrapper h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

table.bullion-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

table.bullion-table th {
  background: var(--bg-secondary);
  color: var(--text-dim);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

table.bullion-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
}

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

table.bullion-table tr:hover td {
  background: var(--bg-card-hover);
}

.val-bold {
  font-weight: 700;
  color: var(--text-main);
}

/* Interactive Calculator */
.calc-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: flex-start;
}

@media (max-width: 768px) {
  .calc-container {
    grid-template-columns: 1fr;
  }
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
}

.input-row {
  display: flex;
  gap: 0.5rem;
}

input.calc-input,
select.calc-input {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  width: 100%;
  transition: border-color 0.2s ease;
}

input.calc-input:focus,
select.calc-input:focus {
  outline: none;
  border-color: var(--gold-primary);
}

.calc-result-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.calc-result-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.calc-total-price {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--gold-primary);
  margin-bottom: 1.25rem;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  padding: 0.45rem 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px dashed var(--border-color);
}

.breakdown-row:last-child {
  border-bottom: none;
}

.breakdown-row span:last-child {
  color: var(--text-main);
  font-weight: 600;
}

/* Indra Chowk Guide / FAQ */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.guide-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: var(--radius-md);
}

.guide-box h4 {
  font-size: 1.05rem;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.guide-box p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Interactive Historical Charts */
.chart-controls-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.chart-tabs-group {
  display: inline-flex;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.25rem;
  gap: 0.25rem;
}

.chart-tab-btn {
  background: transparent;
  border: 0;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.chart-tab-btn:hover {
  color: #fff;
}

.chart-tab-btn.active.gold-tab {
  background: var(--gold-bg-subtle);
  color: var(--gold-primary);
  border: 1px solid var(--gold-border-subtle);
}

.chart-tab-btn.active.silver-tab {
  background: var(--silver-bg-subtle);
  color: var(--silver-primary);
  border: 1px solid var(--silver-border-subtle);
}

.chart-period-group {
  display: inline-flex;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.25rem;
  gap: 0.25rem;
}

.period-btn {
  background: transparent;
  border: 0;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.period-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.period-btn.active {
  background: var(--bg-card-hover);
  color: #fff;
  border: 1px solid var(--border-color);
}

.chart-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.chart-stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

.chart-stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
}

.chart-stat-val {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.chart-canvas-wrapper {
  position: relative;
  width: 100%;
  height: 380px;
  background: rgba(10, 13, 20, 0.5);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.chart-loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(18, 24, 36, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-radius: var(--radius-md);
  z-index: 10;
  transition: opacity 0.2s ease;
}

/* Attribution & Legal Notice */
.attribution-card {
  background: linear-gradient(180deg, rgba(18, 24, 36, 0.7) 0%, rgba(10, 13, 20, 0.9) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-top: 2rem;
  margin-bottom: 3rem;
}

.attribution-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.attribution-header h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.attribution-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.disclaimer-note {
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border-color);
  padding-top: 0.75rem;
}

/* Site Footer */
footer.site-footer {
  background: #07090e;
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.875rem;
}

footer.site-footer a {
  color: var(--text-muted);
  text-decoration: underline;
}

footer.site-footer a:hover {
  color: #fff;
}