:root {
    color-scheme: light dark;
    --bg: #f6f7fb;
    --surface: #ffffff;
    --surface-2: #f1f3f8;
    --text: #111827;
    --muted: #667085;
    --border: #d9deea;
    --primary: #2563eb;
    --primary-2: #1d4ed8;
    --danger: #dc2626;
    --success: #16a34a;
    --warning: #d97706;
    --info: #0891b2;
    --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
    --radius: 20px;
}

[data-theme="dark"] {
    --bg: #080d19;
    --surface: #111827;
    --surface-2: #172033;
    --text: #f8fafc;
    --muted: #a5b4c8;
    --border: #263247;
    --primary: #60a5fa;
    --primary-2: #3b82f6;
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 34%), var(--bg);
    color: var(--text);
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--surface) 88%, transparent); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; background: linear-gradient(135deg, var(--primary), #7c3aed); color: white; font-weight: 800; }
.brand small { display: block; color: var(--muted); font-size: 12px; }
.nav-links { display: flex; align-items: center; gap: 14px; color: var(--muted); font-weight: 650; }
.nav-links a:hover { color: var(--primary); }

.theme-switch { position: relative; display: inline-flex; width: 62px; height: 34px; cursor: pointer; }
.theme-switch input { display: none; }
.slider { position: absolute; inset: 0; background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; transition: .2s; }
.slider::before { content: ""; position: absolute; width: 26px; height: 26px; top: 3px; left: 4px; border-radius: 50%; background: var(--primary); transition: .2s; box-shadow: 0 8px 20px rgba(37, 99, 235, .35); }
.theme-switch input:checked + .slider::before { transform: translateX(26px); }
.sun, .moon { position: absolute; top: 5px; font-size: 15px; z-index: 1; }
.sun { left: 9px; } .moon { right: 11px; }

.hero { padding: 54px 0 34px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: center; }
.kicker { display: inline-flex; padding: 8px 12px; border-radius: 999px; background: color-mix(in srgb, var(--primary) 12%, transparent); color: var(--primary); font-weight: 800; font-size: 13px; }
h1 { font-size: clamp(34px, 5vw, 62px); line-height: 1.04; margin: 16px 0; letter-spacing: -0.05em; }
.lead { font-size: 18px; color: var(--muted); max-width: 680px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.btn { border: 0; border-radius: 14px; padding: 12px 18px; background: var(--primary); color: white; font-weight: 800; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; box-shadow: 0 14px 30px rgba(37, 99, 235, .2); }
.btn:hover { background: var(--primary-2); }
.btn.secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); box-shadow: none; }
.btn.danger { background: var(--danger); }
.btn.small { padding: 8px 12px; font-size: 13px; border-radius: 10px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.card.compact { padding: 16px; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.section { padding: 24px 0; }
.section-title { margin: 0 0 14px; font-size: 28px; letter-spacing: -0.03em; }
.muted { color: var(--muted); }

.stat { display: flex; flex-direction: column; gap: 6px; }
.stat strong { font-size: 32px; }
.stat span { color: var(--muted); }

.form { display: grid; gap: 16px; }
.form-row { display: grid; gap: 8px; }
label { font-weight: 800; }
input, select, textarea { width: 100%; border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 14px; padding: 12px 14px; font: inherit; }
textarea { min-height: 110px; resize: vertical; }
.help { color: var(--muted); font-size: 13px; }
.alert { border: 1px solid var(--border); border-radius: 16px; padding: 14px 16px; background: var(--surface-2); }
.alert.success { border-color: color-mix(in srgb, var(--success) 45%, var(--border)); }
.alert.danger { border-color: color-mix(in srgb, var(--danger) 45%, var(--border)); }
.alert.warning { border-color: color-mix(in srgb, var(--warning) 45%, var(--border)); }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 18px; background: var(--surface); }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { padding: 13px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: var(--surface-2); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }
tr:last-child td { border-bottom: 0; }
.badge { display: inline-flex; align-items: center; border-radius: 999px; padding: 5px 10px; font-weight: 800; font-size: 12px; }
.badge-success { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); }
.badge-warning { background: color-mix(in srgb, var(--warning) 15%, transparent); color: var(--warning); }
.badge-danger { background: color-mix(in srgb, var(--danger) 15%, transparent); color: var(--danger); }
.badge-info { background: color-mix(in srgb, var(--info) 15%, transparent); color: var(--info); }
.badge-muted { background: var(--surface-2); color: var(--muted); }
.progress { height: 10px; border-radius: 99px; background: var(--surface-2); overflow: hidden; border: 1px solid var(--border); }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), #7c3aed); }

.modal { position: fixed; inset: 0; background: rgba(2, 6, 23, .66); display: none; align-items: center; justify-content: center; padding: 18px; z-index: 50; }
.modal.open { display: flex; }
.modal-card { background: var(--surface); color: var(--text); border-radius: 22px; padding: 22px; width: min(480px, 100%); box-shadow: var(--shadow); border: 1px solid var(--border); }
.modal-head { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 14px; }
.modal-close { border: 0; background: var(--surface-2); color: var(--text); width: 36px; height: 36px; border-radius: 12px; font-size: 20px; cursor: pointer; }
.qris-img { width: 100%; max-height: 420px; object-fit: contain; border-radius: 16px; border: 1px solid var(--border); background: white; }

.admin-layout { display: grid; grid-template-columns: 240px 1fr; gap: 22px; align-items: start; padding: 24px 0; }
.sidebar { position: sticky; top: 92px; display: grid; gap: 8px; }
.sidebar a { padding: 12px 14px; border-radius: 12px; color: var(--muted); font-weight: 800; }
.sidebar a:hover, .sidebar a.active { background: var(--surface-2); color: var(--primary); }
.site-footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 22px 0; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

@media (max-width: 860px) {
    .header-inner { align-items: flex-start; flex-direction: column; padding: 14px 0; }
    .nav-links { width: 100%; overflow-x: auto; padding-bottom: 4px; }
    .hero-grid, .grid-2, .grid-3, .admin-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .card { padding: 18px; }
    .actions .btn { width: 100%; }
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #080d19;
        --surface: #111827;
        --surface-2: #172033;
        --text: #f8fafc;
        --muted: #a5b4c8;
        --border: #263247;
        --primary: #60a5fa;
        --primary-2: #3b82f6;
        --shadow: 0 18px 45px rgba(0, 0, 0, 0.32);
    }
}

.clean-list { margin: 10px 0 0; padding-left: 20px; color: var(--muted); }
.alert.info { border-color: color-mix(in srgb, var(--info) 45%, var(--border)); }
button:disabled, .btn[disabled] { opacity: .55; cursor: not-allowed; }
.sidebar li { list-style: none; }
.qris-thumb { width: 180px; max-width: 100%; border: 1px solid var(--border); border-radius: 16px; background: white; padding: 8px; }