:root {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-hover: #334155;
    --border: #334155;
    --text: #e2e8f0;
    --text-secondary: #94a3b8;
    --green: #4ade80;
    --red: #f87171;
    --blue: #60a5fa;
    --accent: #818cf8;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding: 0 24px 48px;
}

/* ── Header ───────────────────── */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}
header h1 { font-size: 24px; }
#fecha-display { color: var(--text-secondary); font-size: 14px; }

/* ── Summary cards ────────────── */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}
.card .label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.card .value { font-size: 28px; font-weight: 700; }

/* ── Top movers ───────────────── */
#movers { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.mover-panel {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 16px;
}
.mover-panel h2 { font-size: 16px; margin-bottom: 12px; }
.mover-panel table { width: 100%; border-collapse: collapse; }
.mover-panel td { padding: 6px 8px; font-size: 13px; border-bottom: 1px solid var(--border); }
.mover-panel .desc { color: var(--text-secondary); max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Categories ───────────────── */
#categorias-section { margin-bottom: 24px; }
#categorias-section h2 { font-size: 18px; margin-bottom: 12px; }
#categorias-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.cat-card {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 14px;
    cursor: pointer;
    transition: background 0.15s;
}
.cat-card:hover { background: var(--bg-hover); }
.cat-card strong { display: block; font-size: 15px; margin-bottom: 4px; }
.cat-card span { font-size: 20px; font-weight: 700; color: var(--accent); }
.cat-card small { display: block; color: var(--text-secondary); font-size: 12px; margin-top: 2px; }

/* ── Toolbar ──────────────────── */
.toolbar {
    display: flex; gap: 10px; margin-bottom: 16px;
    flex-wrap: wrap;
}
.toolbar input, .toolbar select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
}
.toolbar input:focus, .toolbar select:focus { border-color: var(--accent); }
.toolbar input { flex: 1; min-width: 200px; }

/* ── Table ────────────────────── */
#tickers-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
}
#tickers-table th {
    background: #0f172a;
    text-align: left;
    padding: 12px 14px;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}
#tickers-table th.num { text-align: right; }
#tickers-table td {
    padding: 10px 14px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}
#tickers-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
#tickers-table td.desc {
    color: var(--text-secondary);
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
#tickers-table tr.clickable { cursor: pointer; transition: background 0.1s; }
#tickers-table tr.clickable:hover { background: var(--bg-hover); }

.positive { color: var(--green); }
.negative { color: var(--red); }
.clickable { cursor: pointer; }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    background: #1e293b;
    color: var(--text-secondary);
}

/* ── Pagination ───────────────── */
#pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-top: 16px;
}
#pagination button {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
}
#pagination button:disabled { opacity: 0.4; cursor: default; }
#pagination button:not(:disabled):hover { background: var(--bg-hover); }
#page-info { font-size: 14px; color: var(--text-secondary); }

/* ── Modal ────────────────────── */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.8);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.modal-content {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    width: 90%;
    max-width: 900px;
    max-height: 85vh;
    position: relative;
}
.modal .close {
    position: absolute;
    top: 12px; right: 16px;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
}
.modal .close:hover { color: var(--text); }
#chart-header { margin-bottom: 16px; }
#chart-header h2 { font-size: 20px; }
#chart-info { color: var(--text-secondary); font-size: 13px; margin-top: 4px; }
#chart-canvas { width: 100%; height: 400px; }
#chart-legend { text-align: center; color: var(--text-secondary); font-size: 12px; margin-top: 8px; }

/* ── Responsive ───────────────── */
@media (max-width: 768px) {
    .cards { grid-template-columns: repeat(2, 1fr); }
    #movers { grid-template-columns: 1fr; }
    #tickers-table td.desc { max-width: 120px; }
}