:root {
    --ad-navy: #0f2540;
    --ad-blue: #1e6fd9;
    --ad-red: #d93025;
    --ad-bg: #f4f6f9;
    --ad-card: #ffffff;
    --ad-text: #1c2732;
    --ad-muted: #6b7785;
    --ad-border: #e2e7ee;
    --radius: 12px;
    --shadow: 0 2px 10px rgba(15, 37, 64, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--ad-bg);
    color: var(--ad-text);
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 22px;
    background: var(--ad-navy);
    color: #fff;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 600;
}

.brand i { color: var(--ad-blue); }

main {
    max-width: 960px;
    margin: 0 auto;
    padding: 28px 20px 60px;
}

h1 { margin: 0 0 6px; }

.subtitle {
    color: var(--ad-muted);
    margin: 0 0 26px;
}

.hidden { display: none !important; }

/* Public review cards */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

.review-card {
    background: var(--ad-card);
    border: 1px solid var(--ad-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    text-align: center;
}

.review-card h3 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 0 0 14px;
    font-size: 1.15rem;
}

.review-card .qr {
    display: inline-block;
    padding: 10px;
    background: #fff;
    border: 1px solid var(--ad-border);
    border-radius: 8px;
}

.review-card .qr img,
.review-card .qr canvas { display: block; }

.review-card .url {
    display: block;
    margin: 12px 0;
    font-size: 0.8rem;
    color: var(--ad-muted);
    word-break: break-all;
}

/* Admin */
.admin-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.admin-head-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.admin-row {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--ad-card);
    border: 1px solid var(--ad-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 14px 18px;
}

.admin-row .row-icon {
    font-size: 1.4rem;
    color: var(--ad-blue);
    width: 34px;
    text-align: center;
}

.admin-row .row-main { flex: 1; min-width: 0; }
.admin-row .row-main strong { display: block; }
.admin-row .row-main span {
    color: var(--ad-muted);
    font-size: 0.82rem;
    word-break: break-all;
}

.badge {
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: 999px;
    font-weight: 600;
}
.badge.on { background: #e5f5ec; color: #1c8a4d; }
.badge.off { background: #fdecec; color: var(--ad-red); }

.empty {
    color: var(--ad-muted);
    text-align: center;
    padding: 30px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border: none;
    border-radius: 8px;
    padding: 9px 16px;
    font-size: 0.9rem;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.15s, opacity 0.15s;
}
.btn-primary { background: var(--ad-blue); color: #fff; }
.btn-primary:hover { background: #1a5fbb; }
.btn-danger { background: var(--ad-red); color: #fff; }
.btn-danger:hover { opacity: 0.9; }
.btn-ghost { background: transparent; color: inherit; border: 1px solid var(--ad-border); }
.site-header .btn-ghost { color: #fff; border-color: rgba(255,255,255,0.35); }
.btn-icon { padding: 8px 10px; }

/* Modal */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 37, 64, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 100;
}

.modal {
    background: #fff;
    border-radius: var(--radius);
    padding: 24px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.25);
}

.modal h2 { margin: 0 0 16px; }

.modal label {
    display: block;
    margin-bottom: 14px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ad-text);
}

.modal label.checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.modal input[type="text"],
.modal input[type="url"] {
    display: block;
    width: 100%;
    margin-top: 5px;
    padding: 9px 11px;
    border: 1px solid var(--ad-border);
    border-radius: 7px;
    font-size: 0.9rem;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 8px;
}

/* Toast */
.toast-host {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 200;
}

.toast {
    background: var(--ad-navy);
    color: #fff;
    padding: 12px 18px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 9px;
    animation: toastIn 0.2s ease;
}
.toast.success { background: #1c8a4d; }
.toast.error { background: var(--ad-red); }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}