:root {
    color-scheme: light;
    --bg: #f5f7f9;
    --panel: #ffffff;
    --text: #1f2933;
    --muted: #6b7684;
    --line: #d9e0e7;
    --accent: #0f766e;
    --up: #b42318;
    --down: #157347;
    --warn: #b54708;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.topbar {
    background: #102a43;
    color: white;
    padding: 18px 16px;
}

.topbar h1 {
    margin: 0;
    font-size: 22px;
}

.topbar p {
    margin: 6px 0 0;
    color: #c7d2df;
}

.nav {
    display: flex;
    gap: 8px;
    margin-top: 14px;
    overflow-x: auto;
}

.nav a,
.link-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 8px 10px;
    color: var(--text);
    background: #fff;
    text-decoration: none;
    white-space: nowrap;
}

.nav a {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.28);
}

.nav a.active {
    color: #102a43;
    background: #fff;
    border-color: #fff;
}

.page {
    width: min(1080px, 100%);
    margin: 0 auto;
    padding: 16px;
}

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

.stats {
    grid-template-columns: repeat(3, 1fr);
}

.card,
.section,
.signal,
.rule {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.card {
    padding: 16px;
}

.card span,
small,
.signal span,
.rule small {
    color: var(--muted);
}

.card strong {
    display: block;
    margin-top: 8px;
    font-size: 24px;
}

.section {
    margin-top: 16px;
    padding: 16px;
}

.section h2 {
    margin: 0 0 12px;
    font-size: 18px;
}

.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.section-head h2 {
    margin: 0;
}

.hint {
    color: var(--muted);
    margin: 0 0 12px;
}

.empty {
    color: var(--muted);
    padding: 12px 0;
}

.signal-list,
.rule-grid {
    display: grid;
    gap: 10px;
}

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

.signal,
.rule {
    padding: 12px;
}

.signal {
    border-left: 4px solid var(--accent);
}

.signal.severity-3 {
    border-left-color: var(--up);
}

.signal.severity-2 {
    border-left-color: var(--warn);
}

.signal p,
.rule p {
    margin: 8px 0;
}

.signal time {
    color: var(--muted);
    font-size: 12px;
}

.inline-form {
    margin-top: 10px;
}

.forms-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.form-card,
.edit-form {
    display: grid;
    gap: 10px;
}

.form-card h3 {
    margin: 0;
    font-size: 16px;
}

label {
    display: grid;
    gap: 5px;
    color: var(--muted);
    font-size: 14px;
}

input,
select,
textarea,
button {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 6px;
    font: inherit;
}

input,
select,
textarea {
    padding: 9px 10px;
    background: #fff;
    color: var(--text);
}

button {
    padding: 10px 12px;
    background: var(--accent);
    color: white;
    cursor: pointer;
}

.small-btn {
    width: auto;
}

.inline-form button {
    width: auto;
    padding: 6px 10px;
    font-size: 13px;
}

details {
    margin-top: 10px;
}

summary {
    cursor: pointer;
    color: var(--accent);
}

.section-toggle {
    margin-top: 0;
}

.section-toggle > summary,
.compact-details > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 38px;
    padding: 8px 0;
    color: var(--text);
    font-weight: 700;
}

.compact-details {
    margin-top: 12px;
}

.scroll-panel {
    max-height: 520px;
    overflow: auto;
    padding-right: 4px;
}

.compact-list .rule {
    padding: 10px 12px;
}

.mini-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.metric-card {
    display: block;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    text-decoration: none;
}

.metric-card span,
.metric-card small {
    display: block;
    color: var(--muted);
}

.metric-card strong {
    display: block;
    margin: 8px 0;
    font-size: 24px;
}

.sparkline {
    width: 100%;
    height: 90px;
    margin: 10px 0;
    background: #f8fafc;
    border: 1px solid var(--line);
    border-radius: 6px;
}

.sparkline polyline {
    fill: none;
    stroke: var(--accent);
    stroke-width: 2.4;
    vector-effect: non-scaling-stroke;
}

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

.review-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.month-sidebar {
    position: sticky;
    top: 12px;
}

.month-list {
    display: grid;
    gap: 8px;
    max-height: 560px;
    overflow: auto;
}

.month-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--text);
    text-decoration: none;
    background: #fff;
}

.month-list a.active {
    border-color: var(--accent);
    color: var(--accent);
    font-weight: 700;
}

.month-list small {
    color: var(--muted);
}

.filter-bar {
    display: grid;
    grid-template-columns: minmax(160px, 2fr) minmax(120px, 1fr) minmax(140px, 1.2fr) minmax(130px, 1fr) auto auto;
    gap: 10px;
    align-items: end;
}

.filter-bar .link-btn {
    min-height: 40px;
}

.month-group {
    display: grid;
    gap: 12px;
}

.month-group h3 {
    margin: 6px 0 0;
    padding-left: 10px;
    border-left: 4px solid var(--accent);
    font-size: 17px;
}

.review-card {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.review-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.review-head small {
    display: block;
    margin-top: 4px;
}

.review-content {
    margin-top: 12px;
    line-height: 1.65;
    white-space: normal;
}

mark {
    background: #fff3bf;
    color: inherit;
    padding: 0 2px;
}

.checkline {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkline input {
    width: auto;
}

.add-rule {
    margin-top: 14px;
    padding: 12px;
    border: 1px dashed var(--line);
    border-radius: 8px;
}

.rule.disabled {
    opacity: 0.55;
}

.muted-row {
    opacity: 0.55;
}

.danger-form button {
    background: #b42318;
}

.table-wrap {
    overflow-x: auto;
}

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

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 10px 8px;
    text-align: left;
    white-space: nowrap;
}

td b,
td small {
    display: block;
}

.up {
    color: var(--up);
}

.down {
    color: var(--down);
}

@media (max-width: 720px) {
    .stats {
        grid-template-columns: 1fr;
    }

    .page {
        padding: 12px;
    }

    .forms-grid {
        grid-template-columns: 1fr;
    }

    .cards-2,
    .mini-grid {
        grid-template-columns: 1fr;
    }

    .review-head {
        display: grid;
    }

    .review-layout {
        grid-template-columns: 1fr;
    }

    .month-sidebar {
        position: static;
    }

    .month-list {
        display: flex;
        overflow-x: auto;
        max-height: none;
        padding-bottom: 4px;
    }

    .month-list a {
        min-width: 110px;
    }

    .filter-bar {
        grid-template-columns: 1fr;
    }
}