:root {
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary-color: #6366f1;
    --border-color: rgba(255, 255, 255, 0.08);
}

.light-theme {
    --bg-body: #f1f5f9;
    --bg-card: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border-color: rgba(0, 0, 0, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Readex Pro', sans-serif;
    transition: background-color 0.3s, color 0.3s;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
}

.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--bg-card);
    border-left: 1px solid var(--border-color);
    padding: 25px 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 40px;
}

.logo-icon {
    font-size: 24px;
    color: var(--primary-color);
}

.brand span { color: #f97316; }

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 10px;
}

.nav-links li.active a, .nav-links a:hover {
    background: var(--primary-color);
    color: white;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 30px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.search-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 10px 18px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    width: 320px;
}

.search-box input {
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    width: 100%;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 14px;
    border-radius: 10px;
    cursor: pointer;
}

.profile-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 500;
}

.profile-menu img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 22px;
    border-radius: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-info span { color: var(--text-secondary); font-size: 13px; }
.stat-info h3 { font-size: 26px; margin: 8px 0; }
.stat-info small { font-size: 12px; font-weight: 600; }
.positive { color: #22c55e; }
.negative { color: #ef4444; }

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.stat-icon.purple { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
.stat-icon.blue { background: rgba(14, 165, 233, 0.15); color: #38bdf8; }
.stat-icon.green { background: rgba(34, 197, 94, 0.15); color: #4ade80; }

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 20px;
}

.chart-card, .table-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 22px;
    border-radius: 16px;
}

.chart-card h3, .table-card h3 {
    margin-bottom: 20px;
    font-size: 16px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 10px;
    text-align: right;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

th { color: var(--text-secondary); }

.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}

.badge.success { background: rgba(34, 197, 94, 0.15); color: #22c55e; }
.badge.pending { background: rgba(249, 115, 22, 0.15); color: #f97316; }

@media (max-width: 900px) {
    .dashboard-container { flex-direction: column; }
    .sidebar { width: 100%; }
    .content-grid { grid-template-columns: 1fr; }
}