:root {
    --bg-base: #0f172a;
    --bg-card: #1e293b;
    --bg-input: #334155;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #0ea5e9;
    --accent-hover: #0284c7;
    --danger: #ef4444;
    --success: #22c55e;
    --border: #334155;
    --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', -apple-system, sans-serif; background-color: var(--bg-base); color: var(--text-main); line-height: 1.5; display: flex; flex-direction: column; min-height: 100vh; }
a { color: var(--accent); text-decoration: none; transition: 0.2s; }
a:hover { color: var(--accent-hover); }

/* Layout */
.container { max-width: 900px; margin: 0 auto; padding: 2rem 1.5rem; width: 100%; flex-grow: 1; }
header { padding: 1.5rem 0; border-bottom: 1px solid var(--border); margin-bottom: 2rem; display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.5px; } /* Sesuai instruksi: Jangan di spasi woiiiii */
.logo span { color: var(--accent); }
.brand-sub { font-size: 0.75rem; color: var(--text-muted); display: block; margin-top: -4px;}
nav { display: flex; gap: 1.5rem; font-size: 0.9rem; font-weight: 500; }
footer { text-align: center; padding: 2rem; border-top: 1px solid var(--border); margin-top: auto; color: var(--text-muted); font-size: 0.85rem; }

/* Cards & UI */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); }
.text-center { text-align: center; }
.mb-1 { margin-bottom: 1rem; } .mb-2 { margin-bottom: 2rem; } .mt-1 { margin-top: 1rem; }

/* Buttons & Inputs */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; background: var(--accent); color: #fff; padding: 0.75rem 1.5rem; border: none; border-radius: 8px; font-weight: 600; cursor: pointer; transition: 0.2s; font-size: 0.9rem; }
.btn:hover { background: var(--accent-hover); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-main); }
.btn-outline:hover { background: var(--bg-input); }
.btn-danger { background: var(--danger); }
.input-group { margin-bottom: 1rem; text-align: left; }
.input-group label { display: block; margin-bottom: 0.5rem; font-size: 0.85rem; color: var(--text-muted); }
.input-control { width: 100%; padding: 0.75rem 1rem; background: var(--bg-input); border: 1px solid var(--border); border-radius: 8px; color: var(--text-main); font-family: monospace; outline: none; transition: 0.2s; }
.input-control:focus { border-color: var(--accent); }

/* Uploader */
.dropzone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 3rem 2rem; text-align: center; cursor: pointer; transition: 0.2s; background: rgba(30,41,59,0.5); }
.dropzone.dragover { border-color: var(--accent); background: rgba(14,165,233,0.1); }
.dropzone i { width: 48px; height: 48px; color: var(--text-muted); margin-bottom: 1rem; }
.progress-bar { width: 100%; background: var(--bg-input); border-radius: 99px; height: 8px; overflow: hidden; margin-top: 1.5rem; display: none; }
.progress-fill { background: var(--accent); height: 100%; width: 0%; transition: width 0.2s; }

/* Tables (Admin) */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; margin-top: 1rem; font-size: 0.9rem;}
th, td { padding: 1rem; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 500; }
tr:hover td { background: rgba(255,255,255,0.02); }
.badge { padding: 0.25rem 0.5rem; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
.badge-active { background: rgba(34,197,94,0.2); color: var(--success); }
.badge-deleted { background: rgba(239,68,68,0.2); color: var(--danger); }

/* Admin Layout */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar { width: 250px; background: var(--bg-card); border-right: 1px solid var(--border); padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem;}
.admin-sidebar a { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; border-radius: 8px; color: var(--text-muted); }
.admin-sidebar a:hover, .admin-sidebar a.active { background: var(--bg-input); color: var(--text-main); }
.admin-content { flex: 1; padding: 2rem; overflow-y: auto; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.stat-card { padding: 1.5rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); }
.stat-card h3 { font-size: 2rem; margin-top: 0.5rem; }

@media (max-width: 768px) {
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); flex-direction: row; flex-wrap: wrap; }
}