/* ─── Reset & Base ──────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-hover: #22262f;
  --border: #2a2d38;
  --text: #e4e6ef;
  --text-muted: #8b8fa3;
  --green: #22c55e;
  --red: #ef4444;
  --blue: #3b82f6;
  --blue-bg: rgba(59, 130, 246, 0.1);
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

/* ─── Header ───────────────────────────────────────────────────────────── */
header {
  margin-bottom: 32px;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 700;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pulse {
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.etf-info h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.etf-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: "SF Mono", "Fira Code", monospace;
}

/* ─── Price Section ────────────────────────────────────────────────────── */
.price-section {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

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

@media (max-width: 480px) {
  .price-section {
    grid-template-columns: 1fr;
  }
}

.price-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.price-card.main-price {
  border-color: var(--blue);
  box-shadow: 0 0 20px var(--blue-bg);
}

.price-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.price-card .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.price-card .value {
  font-size: 2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.price-card .value.small {
  font-size: 1.25rem;
}

.price-card .value.positive {
  color: var(--green);
}

.price-card .value.negative {
  color: var(--red);
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.change {
  font-size: 1rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 6px;
}

.change.up {
  color: var(--green);
  background: rgba(34, 197, 94, 0.1);
}

.change.down {
  color: var(--red);
  background: rgba(239, 68, 68, 0.1);
}

.exchange {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ─── Chart ─────────────────────────────────────────────────────────────── */
.chart-section {
  margin-bottom: 32px;
}

.chart-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.chart-container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  height: 350px;
  position: relative;
}

.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ─── Portfolio ─────────────────────────────────────────────────────────── */
.portfolio-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.portfolio-section {
  margin-bottom: 40px;
}

.portfolio-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

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

.summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.summary-card .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.summary-card .value {
  font-size: 1.35rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.bank-group {
  margin-bottom: 28px;
}

.bank-group h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ─── Table ─────────────────────────────────────────────────────────────── */
.portfolio-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 0.88rem;
}

.portfolio-table thead th {
  background: var(--surface-hover);
  padding: 10px 14px;
  text-align: right;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  white-space: nowrap;
}

.portfolio-table thead th:first-child {
  text-align: left;
}

.portfolio-table tbody td {
  padding: 12px 14px;
  text-align: right;
  border-top: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
}

.portfolio-table tbody td:first-child {
  text-align: left;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.portfolio-table tfoot td {
  padding: 12px 14px;
  text-align: right;
  font-weight: 700;
  border-top: 2px solid var(--border);
  font-variant-numeric: tabular-nums;
}

.portfolio-table tfoot td:first-child {
  text-align: left;
}

.gain-positive {
  color: var(--green);
}

.gain-negative {
  color: var(--red);
}

/* ─── Footer ────────────────────────────────────────────────────────────── */
footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

footer a {
  color: var(--blue);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}