/* --- Global Reset & Theme --- */
:root {
    --bg-main: #0f172a;
    /* Deep slate blue */
    --bg-card: #1e293b;
    /* Lighter card backgrounds */
    --text-main: #f8fafc;
    /* Clean crisp white */
    --text-muted: #94a3b8;
    /* Muted gray text */
    --accent-gold: #f59e0b;
    /* Premium Leverage Gold */
    --accent-red: #ef4444;
    /* Market Fallers Red */
    --accent-green: #10b981;
    /* Market Risers Green */
    --border-color: #334155;
    /* Subtle internal dividers */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    padding: 24px;
}

/* --- Header & Filter Controls --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 32px;
}

.logo-container h1 {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--text-main);
}

.logo-container p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 4px;
}

.controls {
    display: flex;
    gap: 10px;
}

.filter-btn {
    background-color: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    background-color: var(--border-color);
}

.filter-btn.active {
    background-color: var(--accent-gold);
    color: var(--bg-main);
    border-color: var(--accent-gold);
}

/* --- Grid & Cards --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 24px;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.card h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 20px;
}

/* --- Interactive Data Tables --- */
.table-wrapper {
    overflow-x: auto;
    max-height: 400px;
    /* Locks cards at a nice scrollable height */
    overflow-y: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

th {
    background-color: rgba(15, 23, 42, 0.6);
    color: var(--text-muted);
    font-weight: 600;
    padding: 12px;
    position: sticky;
    top: 0;
    border-bottom: 2px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

td {
    padding: 12px;
    border-bottom: 1px solid rgba(51, 65, 85, 0.5);
    white-space: nowrap;
}

tr:hover td {
    background-color: rgba(51, 65, 85, 0.3);
}

/* --- Dynamic Status/Value Classes --- */
.text-up {
    color: var(--accent-green);
    font-weight: 600;
}

.text-down {
    color: var(--accent-red);
    font-weight: 600;
}

.badge-leverage {
    background-color: rgba(245, 158, 11, 0.15);
    color: var(--accent-gold);
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.8rem;
    border: 1px solid rgba(245, 158, 11, 0.3);
}