:root {
    --bg-dark: #0a192f;
    --card-bg: rgba(255, 255, 255, 0.05);
    --accent-admin: #ff0055;
    --accent-guru: #00ff88;
    --accent-peserta: #00d4ff;
    --text-main: #f0faff;
    --border-glass: rgba(255, 255, 255, 0.1);
}

body {
    background: radial-gradient(circle at top right, #112240, var(--bg-dark));
    color: var(--text-main);
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 25px;
}

/* Sidebar Styling */
.sidebar {
    width: 280px; height: 100vh; position: fixed;
    background: rgba(10, 25, 47, 0.9); backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-glass); padding: 25px 20px; z-index: 1000;
}

.main-content { margin-left: 280px; padding: 40px; }

/* Table Reset - ANTI PUTIH KAKU */
.table-custom { background: transparent !important; border-spacing: 0 10px !important; border-collapse: separate !important; }
.table-custom thead th { background: transparent !important; border: none !important; color: var(--accent-peserta); text-transform: uppercase; font-size: 0.75rem; }
.table-custom tbody tr { background: rgba(255, 255, 255, 0.03) !important; transition: 0.3s; }
.table-custom tbody tr:hover { background: rgba(255, 255, 255, 0.08) !important; transform: scale(1.01); }
.table-custom td { border: none !important; color: var(--text-main) !important; padding: 15px !important; vertical-align: middle; }

/* Nav Link */
.nav-link { color: rgba(255,255,255,0.6) !important; padding: 12px 15px; border-radius: 12px; transition: 0.3s; text-decoration: none; display: flex; align-items: center; }
.active-nav { background: linear-gradient(90deg, rgba(0, 212, 255, 0.1) 0%, rgba(0, 212, 255, 0) 100%) !important; color: var(--accent-peserta) !important; border-left: 3px solid var(--accent-peserta) !important; font-weight: bold; }