:root {
    color-scheme: light;
    --admin-bg: #f3f5f4;
    --admin-surface: #ffffff;
    --admin-surface-soft: #f8faf9;
    --admin-text: #16201b;
    --admin-muted: #68746d;
    --admin-border: #dce2de;
    --admin-accent: #176b4d;
    --admin-accent-hover: #10553d;
    --admin-danger: #b42318;
    --admin-warning: #9a6700;
    --admin-success: #18794e;
    --admin-nav: #17221d;
    --admin-nav-text: #dfe8e3;
}

* { box-sizing: border-box; }

html { min-width: 320px; }

body {
    margin: 0;
    background: var(--admin-bg);
    color: var(--admin-text);
    font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    font-size: 14px;
    letter-spacing: 0;
}

a { color: inherit; }
button, input, select { font: inherit; }

.admin-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 224px minmax(0, 1fr);
}

.admin-sidebar {
    padding: 20px 14px;
    background: var(--admin-nav);
    color: var(--admin-nav-text);
}

.admin-brand {
    min-height: 48px;
    padding: 0 10px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.admin-brand-mark {
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    border-radius: 6px;
    background: #edf4f0;
    color: var(--admin-nav);
    font-weight: 800;
}

.admin-brand strong,
.admin-brand span { display: block; }
.admin-brand span { margin-top: 2px; color: #9fb0a7; font-size: 12px; }

.admin-nav { margin-top: 18px; display: grid; gap: 4px; }
.admin-nav a {
    min-height: 40px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    border-radius: 6px;
    color: #b9c7c0;
    text-decoration: none;
}
.admin-nav a:hover { background: rgba(255, 255, 255, .07); color: white; }
.admin-nav a.active { background: #edf4f0; color: #183126; font-weight: 700; }

.admin-sidebar-account {
    margin-top: 24px;
    padding: 16px 10px 0;
    border-top: 1px solid rgba(255, 255, 255, .12);
    color: #9fb0a7;
    overflow-wrap: anywhere;
}
.admin-sidebar-account strong { display: block; margin-bottom: 3px; color: white; }

.admin-content { min-width: 0; }

.admin-topbar {
    min-height: 68px;
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-bottom: 1px solid var(--admin-border);
    background: var(--admin-surface);
}

.admin-topbar h1 { margin: 0; font-size: 20px; }
.admin-topbar form { margin: 0; }

.admin-main { padding: 24px 28px 48px; }

.admin-alert {
    margin-bottom: 16px;
    padding: 12px 14px;
    border: 1px solid #b9d9c9;
    border-radius: 6px;
    background: #eef8f2;
    color: #145c40;
}
.admin-alert.error { border-color: #edc3bf; background: #fff4f2; color: var(--admin-danger); }

.admin-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.admin-stat {
    min-height: 104px;
    padding: 16px;
    border: 1px solid var(--admin-border);
    border-radius: 7px;
    background: var(--admin-surface);
}
.admin-stat span { display: block; color: var(--admin-muted); font-size: 13px; }
.admin-stat strong { display: block; margin-top: 12px; font-size: 24px; font-variant-numeric: tabular-nums; }
.admin-stat small { display: block; margin-top: 4px; color: var(--admin-muted); }

.admin-section { margin-top: 18px; }
.admin-panel {
    border: 1px solid var(--admin-border);
    border-radius: 7px;
    background: var(--admin-surface);
    overflow: hidden;
}
.admin-panel-head {
    min-height: 56px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    border-bottom: 1px solid var(--admin-border);
}
.admin-panel-head h2 { margin: 0; font-size: 16px; }
.admin-panel-body { padding: 16px; }

.admin-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    gap: 10px;
}
.admin-field { display: grid; gap: 6px; color: var(--admin-muted); font-size: 12px; }
.admin-field.grow { flex: 1 1 280px; }

.admin-input,
.admin-select {
    height: 40px;
    min-width: 160px;
    padding: 0 11px;
    border: 1px solid #cbd4ce;
    border-radius: 6px;
    background: white;
    color: var(--admin-text);
    outline: none;
}
.admin-input { width: 100%; }
.admin-input:focus,
.admin-select:focus { border-color: var(--admin-accent); box-shadow: 0 0 0 3px rgba(23, 107, 77, .12); }

.admin-button {
    min-height: 38px;
    padding: 0 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--admin-border);
    border-radius: 6px;
    background: var(--admin-surface);
    color: var(--admin-text);
    cursor: pointer;
    font-weight: 700;
    text-decoration: none;
}
.admin-button:hover { background: var(--admin-surface-soft); }
.admin-button.primary { border-color: var(--admin-accent); background: var(--admin-accent); color: white; }
.admin-button.primary:hover { background: var(--admin-accent-hover); }
.admin-button.danger { border-color: #e8b6b0; color: var(--admin-danger); }
.admin-button.warning { border-color: #e5cf9f; color: var(--admin-warning); }
.admin-button.small { min-height: 32px; padding: 0 10px; font-size: 12px; }

.admin-table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th,
.admin-table td { padding: 12px 14px; border-bottom: 1px solid #e7ebe8; text-align: left; vertical-align: middle; }
.admin-table th { background: var(--admin-surface-soft); color: var(--admin-muted); font-size: 12px; font-weight: 700; white-space: nowrap; }
.admin-table tbody tr:last-child td { border-bottom: 0; }
.admin-table tbody tr:hover { background: #fafcfb; }
.admin-table a.link { color: var(--admin-accent); font-weight: 700; text-decoration: none; }
.admin-table code { font-size: 12px; overflow-wrap: anywhere; }

.admin-badge {
    display: inline-flex;
    min-height: 24px;
    padding: 0 8px;
    align-items: center;
    border-radius: 999px;
    background: #eef1ef;
    color: #526059;
    font-size: 12px;
    white-space: nowrap;
}
.admin-badge.success { background: #eaf6ef; color: var(--admin-success); }
.admin-badge.warning { background: #fff6df; color: var(--admin-warning); }
.admin-badge.danger { background: #fff0ee; color: var(--admin-danger); }

.admin-grid-two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.admin-detail-list { margin: 0; display: grid; grid-template-columns: 150px minmax(0, 1fr); }
.admin-detail-list dt,
.admin-detail-list dd { margin: 0; padding: 10px 0; border-bottom: 1px solid #e7ebe8; }
.admin-detail-list dt { color: var(--admin-muted); }
.admin-detail-list dd { overflow-wrap: anywhere; }

.admin-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.admin-actions form { margin: 0; }
.admin-page-actions { display: flex; justify-content: flex-start; }
.admin-muted { color: var(--admin-muted); }
.admin-empty { padding: 32px 16px; color: var(--admin-muted); text-align: center; }

.admin-pagination { margin-top: 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--admin-muted); }
.admin-pagination-links { display: flex; gap: 6px; }

.admin-login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: #edf1ee;
}
.admin-login {
    width: min(430px, 100%);
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    background: var(--admin-surface);
    overflow: hidden;
    box-shadow: 0 18px 50px rgba(19, 34, 27, .1);
}
.admin-login-head { padding: 24px; border-bottom: 1px solid var(--admin-border); }
.admin-login-head h1 { margin: 0; font-size: 21px; }
.admin-login-head p { margin: 7px 0 0; color: var(--admin-muted); line-height: 1.6; }
.admin-login-body { padding: 24px; }
.admin-login-state { min-height: 46px; margin-bottom: 14px; color: var(--admin-muted); line-height: 1.6; }
.admin-login .admin-button { width: 100%; }
.admin-login .admin-button + .admin-button { margin-top: 10px; }
.admin-login-meta { margin-top: 16px; color: var(--admin-muted); font-size: 12px; text-align: center; }

@media (max-width: 980px) {
    .admin-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .admin-grid-two { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
    .admin-shell { display: block; }
    .admin-sidebar { padding: 12px; }
    .admin-brand { padding-bottom: 12px; }
    .admin-nav { margin-top: 12px; display: flex; overflow-x: auto; }
    .admin-nav a { flex: 0 0 auto; }
    .admin-sidebar-account { display: none; }
    .admin-topbar { min-height: 58px; padding: 0 16px; }
    .admin-main { padding: 16px 12px 36px; }
    .admin-stats { grid-template-columns: 1fr 1fr; }
    .admin-detail-list { grid-template-columns: 1fr; }
    .admin-detail-list dt { padding-bottom: 2px; border-bottom: 0; }
    .admin-detail-list dd { padding-top: 2px; }
}

@media (max-width: 430px) {
    .admin-stats { grid-template-columns: 1fr; }
    .admin-topbar h1 { font-size: 17px; }
    .admin-pagination { align-items: flex-start; flex-direction: column; }
}