:root {
    --primary-bg: #0f172a;
    --secondary-bg: #1e293b;
    --accent-color: #38bdf8;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --border-color: #334155;
    --card-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background-color: var(--secondary-bg);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 3rem;
    display: flex;
    items-center: center;
    gap: 0.5rem;
}

.nav-item {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    color: var(--text-dim);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-item:hover, .nav-item.active {
    background-color: rgba(56, 189, 248, 0.1);
    color: var(--accent-color);
}

/* Main Content Area */
.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1 {
    font-size: 2rem;
    margin: 0;
}

.status-badge {
    background: rgba(34, 197, 94, 0.1);
    color: #4ade80;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

/* KPI Cards */
.kpi-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.kpi-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    padding: 1.5rem;
    border-radius: 1rem;
    display: flex;
    flex-direction: column;
}

.kpi-label {
    color: var(--text-dim);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.kpi-value {
    font-size: 2rem;
    font-weight: 700;
}

/* Table Styling */
.data-table-container {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    background: rgba(15, 23, 42, 0.5);
    padding: 1rem;
    color: var(--text-dim);
    font-weight: 600;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.badge {
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
}

.badge-active { background: rgba(34, 197, 94, 0.1); color: #4ade80; }
.badge-pending { background: rgba(234, 179, 8, 0.1); color: #facc15; }
.badge-closed { background: rgba(148, 163, 184, 0.1); color: #94a3b8; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--primary-bg); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

@media (max-width: 1024px) {
    .sidebar { display: none; }
}