html, body {
    margin: 0;
    padding: 0;
    font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(255,255,255,0.96), rgba(241,245,249,0.92) 45%, rgba(226,232,240,0.95) 100%);
    color: #0f172a;
}

.admin-auth-page {
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(255,255,255,0.98), rgba(241,245,249,0.94) 42%, rgba(203,213,225,0.96) 100%);
}

* {
    box-sizing: border-box;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select {
    font: inherit;
}

.admin-page {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 248px minmax(0, 1fr);
}

.admin-sidebar {
    padding: 28px 18px;
    background: rgba(15, 23, 42, 0.96);
    color: #e2e8f0;
}

.admin-brand {
    padding: 10px 12px 18px;
}

.admin-brand small {
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 11px;
    color: #94a3b8;
}

.admin-brand strong {
    display: block;
    margin-top: 8px;
    font-size: 24px;
    font-weight: 900;
    color: #f8fafc;
}

.admin-nav {
    display: grid;
    gap: 8px;
    margin-top: 18px;
}

.admin-nav a {
    padding: 12px 14px;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 700;
    color: #cbd5e1;
}

.admin-nav a.active,
.admin-nav a:hover {
    background: rgba(148, 163, 184, 0.18);
    color: #ffffff;
}

.admin-main {
    padding: 22px;
}

.admin-topbar {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
    border-radius: 24px;
    background: rgba(255,255,255,0.84);
    border: 1px solid rgba(203,213,225,0.8);
    box-shadow: 0 18px 48px rgba(15,23,42,0.06);
}

.admin-topbar .meta small {
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 11px;
    color: #94a3b8;
}

.admin-topbar .meta strong {
    display: block;
    margin-top: 6px;
    font-size: 30px;
    font-weight: 900;
    color: #111827;
}

.admin-topbar .meta p {
    margin: 8px 0 0;
    color: #64748b;
    line-height: 1.6;
}

.admin-topbar .chips {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: end;
}

.chip {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 14px;
    border-radius: 999px;
    background: #ffffff;
    border: 1px solid rgba(203,213,225,0.9);
    font-size: 13px;
    font-weight: 700;
    color: #334155;
}

.chip.emphasis {
    background: #111827;
    color: #ffffff;
    border-color: #111827;
}

.chip-button {
    min-height: 40px;
    border-radius: 999px;
}

.admin-content {
    display: grid;
    gap: 18px;
    margin-top: 18px;
}

.admin-grid {
    display: grid;
    gap: 18px;
}

.admin-grid.stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.admin-grid.columns {
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    align-items: start;
}

.card {
    padding: 18px;
    border-radius: 24px;
    background: rgba(255,255,255,0.88);
    border: 1px solid rgba(203,213,225,0.84);
    box-shadow: 0 18px 48px rgba(15,23,42,0.05);
}

.card h2,
.card h3 {
    margin: 0 0 14px;
}

.stat-label {
    font-size: 13px;
    color: #64748b;
}

.stat-value {
    margin-top: 8px;
    font-size: 34px;
    font-weight: 900;
    color: #0f172a;
}

.stat-desc {
    margin-top: 8px;
    font-size: 13px;
    color: #64748b;
    line-height: 1.5;
}

.admin-filterbar,
.admin-actions,
.action-group,
.row-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.form-input,
.form-select {
    min-height: 44px;
    padding: 0 14px;
    border-radius: 14px;
    border: 1px solid #cbd5e1;
    background: #fff;
    color: #0f172a;
}

.form-input {
    min-width: 280px;
    flex: 1 1 280px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 14px;
    border-radius: 14px;
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 700;
}

.btn-primary {
    background: #0f172a;
    color: #fff;
}

.btn-secondary {
    background: #e2e8f0;
    color: #0f172a;
}

.btn-ghost {
    background: #fff;
    border-color: #cbd5e1;
    color: #334155;
}

.btn-danger {
    background: #fee2e2;
    color: #b91c1c;
}

.list {
    display: grid;
    gap: 12px;
}

.row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
    padding: 14px;
    border-radius: 16px;
    background: #f8fafc;
}

.row-actions {
    align-items: center;
}

.row strong {
    display: block;
    font-size: 15px;
    color: #111827;
}

.row p,
.row span {
    margin: 6px 0 0;
    font-size: 13px;
    color: #64748b;
    line-height: 1.55;
}

.badge {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}

.badge.warning { background: #fef3c7; color: #92400e; }
.badge.success { background: #dcfce7; color: #166534; }
.badge.muted { background: #e2e8f0; color: #475569; }
.badge.danger { background: #fee2e2; color: #b91c1c; }
.badge.info { background: #dbeafe; color: #1d4ed8; }

.kv {
    display: grid;
    gap: 12px;
}

.kv .item {
    padding: 14px;
    border-radius: 16px;
    background: #f8fafc;
}

.kv .item strong {
    display: block;
    font-size: 13px;
    color: #475569;
}

.kv .item p {
    margin: 6px 0 0;
    font-size: 14px;
    color: #0f172a;
    line-height: 1.6;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 14px 12px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
    font-size: 14px;
    vertical-align: top;
}

.table th {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #64748b;
}

.subhead {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
}

.subhead p {
    margin: 8px 0 0;
    color: #64748b;
    line-height: 1.6;
}

.admin-auth-card {
    max-width: 640px;
}

.admin-auth-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.admin-login-form {
    display: grid;
    gap: 14px;
    margin-top: 22px;
}

.admin-login-form label {
    display: grid;
    gap: 8px;
    color: #334155;
    font-size: 14px;
    font-weight: 700;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #64748b;
    font-size: 12px;
    font-weight: 800;
}

.field-validation,
.validation-summary {
    font-size: 13px;
    color: #b91c1c;
    line-height: 1.5;
}

.validation-summary ul {
    margin: 0;
    padding-left: 20px;
}

@media (max-width: 1180px) {
    .admin-page {
        grid-template-columns: 88px minmax(0, 1fr);
    }

    .admin-brand strong,
    .admin-nav a span {
        display: none;
    }

    .admin-grid.stats,
    .admin-grid.columns {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .admin-page {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        display: none;
    }

    .admin-main {
        padding: 14px;
    }

    .admin-topbar,
    .row,
    .row-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .admin-grid.stats,
    .admin-grid.columns {
        grid-template-columns: 1fr;
    }
}