/* === Color Variables === */
:root {
    /* Colors from index.html */
    --background: #f8fafc;
    --foreground: #1e293b;
    --muted-foreground: #64748b;
    --card: #ffffff;
    --muted: #f1f5f9;
    --border: #e2e8f0;
    --trading-primary: #2563eb;
    --trading-primary-hover: #1d4ed8;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    
    /* Additional colors */
    --card-bg: var(--card);
    --card-border: var(--border);
    --muted-bg: var(--muted);
}

body {
    background: var(--background);
    color: var(--foreground);
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

/* === Sidebar === */
.sidebar {
    min-width: 256px;
    width: 256px;
    background: #fff;
    border-right: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: sticky;
    top: 0;
    height: 100vh;
}
.sidebar .logo {
    color: var(--trading-primary);
    font-size: 24px;
    font-weight: 700;
}
.nav-link {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    font-size: 16px;
    border-left: 4px solid transparent;
    transition: background 0.2s, color 0.2s;
    border-radius: 0 8px 8px 0;
    margin-bottom: 2px;
    text-decoration: none;
}
.nav-link .icon {
    width: 24px;
    height: 24px;
    margin-right: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.nav-link.active {
    background: rgba(37, 99, 235, 0.10);
    color: var(--trading-primary) !important;
    border-left: 4px solid var(--trading-primary);
    font-weight: 600;
}
.nav-link:hover {
    background: rgba(37, 99, 235, 0.07);
    color: var(--trading-primary);
}
.sidebar .border-t {
    border-top: 1px solid var(--card-border);
}

/* === Main Content === */
main {
    background: var(--background);
    min-height: 100vh;
}
.max-w-7xl {
    max-width: 1280px;
}

/* === Header === */
header h1 {
    font-size: 24px;
    font-weight: 700;
}
.text-muted {
    color: var(--muted-foreground);
}

/* === Components === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.2s;
    padding: 0.5rem 1rem;
}

.btn-primary {
    background-color: var(--trading-primary);
    color: white;
    border: 1px solid var(--trading-primary);
}

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

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--foreground);
}

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

.card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* === Dashboard Grid === */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr 3fr;
    }
    .col-span-1 {
        grid-column: span 1 / span 1;
    }
    .lg\:col-span-3 {
        grid-column: span 1 / span 1;
    }
}

/* === Cards === */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: 0 2px 8px 0 rgba(16, 30, 54, 0.04);
    transition: box-shadow 0.2s;
}
.card:hover {
    box-shadow: 0 4px 16px 0 rgba(16, 30, 54, 0.08);
}

/* === Buttons === */
.btn {
    display: inline-block;
    font-size: 16px;
    font-weight: 500;
    border-radius: 8px;
    padding: 10px 0;
    transition: background 0.2s, color 0.2s, border 0.2s;
    cursor: pointer;
    outline: none;
    border: none;
}
.btn-primary {
    background: var(--trading-primary);
    color: #fff;
    border: 1px solid var(--trading-primary);
}
.btn-primary:hover {
    background: var(--trading-secondary);
    border-color: var(--trading-secondary);
}
.btn-outline {
    background: #fff;
    color: var(--trading-primary);
    border: 1px solid var(--trading-primary);
}
.btn-outline:hover {
    background: var(--trading-primary);
    color: #fff;
}

/* === Tabs === */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--card-border);
}
.tab-btn {
    background: none;
    border: none;
    outline: none;
    font-size: 16px;
    font-weight: 500;
    color: var(--muted);
    padding: 12px 24px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-bottom 0.2s;
}
.tab-btn.active {
    color: var(--trading-primary);
    border-bottom: 2px solid var(--trading-primary);
}
.tab-btn:hover {
    color: var(--trading-primary);
}

/* === Asset Cards === */
.asset-card {
    background: var(--muted-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 16px;
    transition: box-shadow 0.2s;
}
.asset-card:hover {
    box-shadow: 0 2px 8px 0 rgba(16, 30, 54, 0.08);
}

/* === Transaction List === */
.transaction-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.transaction {
    background: #f8fafc;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: box-shadow 0.2s;
}
.transaction:hover {
    box-shadow: 0 2px 8px 0 rgba(16, 30, 54, 0.08);
}
.transaction .icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}
.bg-green-100 {
    background: #dcfce7;
}
.bg-red-100 {
    background: #fee2e2;
}
.text-green-500 {
    color: var(--green-500);
}
.text-red-500 {
    color: var(--red-500);
}

/* === Responsive === */
@media (max-width: 1023px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .col-span-1, .lg\:col-span-3 {
        grid-column: span 1 / span 1;
    }
}
/* === Utilities === */
.shadow-sm {
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.shadow {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
}

.rounded-full {
    border-radius: 9999px;
}

.rounded-lg {
    border-radius: 0.5rem;
}

.text-success {
    color: var(--success) !important;
}

.text-danger {
    color: var(--danger) !important;
}

.text-warning {
    color: var(--warning) !important;
}

.bg-success-subtle {
    background-color: rgba(34, 197, 94, 0.1) !important;
}

.bg-danger-subtle {
    background-color: rgba(239, 68, 68, 0.1) !important;
}

.bg-warning-subtle {
    background-color: rgba(245, 158, 11, 0.1) !important;
}

.bg-primary-subtle {
    background-color: rgba(37, 99, 235, 0.1) !important;
}

/* === Responsive === */
@media (max-width: 767px) {
    .sidebar {
        min-width: 100vw;
        width: 100vw;
        position: relative;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--card-border);
    }
    main {
        padding: 12px;
    }
    .max-w-7xl {
        max-width: 100vw;
    }
}