/* ──────────────────────────────────────────────
   IHSG A/D Index — Styles
   ────────────────────────────────────────────── */

:root {
  --green: #22c55e;
  --green-dark: #16a34a;
  --red: #ef4444;
  --red-dark: #dc2626;
  --gold: #c9a96e;
  --gold-light: #e8d5a8;
  --cream: #fdf8f0;
  --dark: #1a1a2e;
  --dark-card: #16213e;
  --dark-surface: #0f3460;
  --text: #e0e0e0;
  --text-dim: #8899aa;
  --blue: #3b82f6;
  --blue-light: #60a5fa;
  --purple: #a855f7;
  --orange: #f59e0b;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--dark);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Header ── */
header {
  background: linear-gradient(135deg, var(--dark-card), var(--dark-surface));
  border-bottom: 1px solid rgba(201, 169, 110, 0.2);
  padding: 1.25rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.logo-icon {
  font-size: 2rem;
}

.logo h1 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: -2px;
}

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

.badge {
  background: rgba(201, 169, 110, 0.15);
  color: var(--gold);
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.btn-refresh {
  background: rgba(59, 130, 246, 0.15);
  color: var(--blue-light);
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 0.4rem 0.85rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.2s;
}

.btn-refresh:hover {
  background: rgba(59, 130, 246, 0.25);
  border-color: var(--blue);
}

.btn-refresh:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Main ── */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 2rem 3rem;
}

/* ── Cards ── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--dark-card);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.card-value {
  font-size: 1.75rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.card-advance .card-value { color: var(--green); }
.card-decline .card-value { color: var(--red); }
.card-unchanged .card-value { color: var(--text-dim); }
.card-ratio .card-value { color: var(--gold); }
.card-spread .card-value { color: var(--blue-light); }
.card-mcclellan .card-value { color: var(--purple); }

/* ── Chart Controls ── */
.chart-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.chart-controls label {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.chart-controls select {
  background: var(--dark-card);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
}

/* ── Charts ── */
.chart-section {
  margin-bottom: 2rem;
}

.chart-container {
  background: var(--dark-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.chart-container h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
}

.chart-container canvas {
  max-height: 350px;
}

/* ── Table ── */
.table-section {
  margin-bottom: 2rem;
}

.table-section h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.table-scroll {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

thead {
  background: var(--dark-surface);
}

th {
  padding: 0.75rem 1rem;
  text-align: right;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

th:first-child {
  text-align: left;
}

td {
  padding: 0.6rem 1rem;
  text-align: right;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-variant-numeric: tabular-nums;
}

td:first-child {
  text-align: left;
  color: var(--text-dim);
}

tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.td-advance { color: var(--green); }
.td-decline { color: var(--red); }
.td-positive { color: var(--green); }
.td-negative { color: var(--red); }

/* ── Loading ── */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.loading::after {
  content: '';
  display: block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--dark-surface);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 1rem auto 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Footer ── */
footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-dim);
  font-size: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  header { padding: 1rem; }
  main { padding: 1rem; }
  .header-content { flex-direction: column; align-items: flex-start; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .card-value { font-size: 1.4rem; }
  .chart-container { padding: 1rem; }
  .chart-container canvas { max-height: 280px; }
}