:root {
    --bg: #f7f8fa;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --line: #e5e7eb;
    --accent: #0f766e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, sans-serif;
    color: var(--text);
    background: radial-gradient(circle at top right, #e6f5f1, var(--bg) 40%);
}

.header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--line);
    background: linear-gradient(120deg, #ffffff, #f1f9f7);
}

.header h1 {
    margin: 0;
}

.header p {
    margin: 0.25rem 0 0;
    color: var(--muted);
}

.views-nav {
    max-width: 1200px;
    margin: 1rem auto 0;
    padding: 0 1rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.view-tab {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--muted);
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
}

.view-tab.active {
    color: #fff;
    background: var(--accent);
    border-color: var(--accent);
}

.layout {
    max-width: 1200px;
    margin: 1rem auto 3rem;
    padding: 0 1rem;
    display: grid;
    gap: 1rem;
}

.view-panel {
    display: none;
}

.view-panel.active {
    display: block;
}

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
}

.card h2 {
    margin-top: 0;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.label {
    display: block;
    color: var(--muted);
    font-size: 0.85rem;
}

.value {
    display: block;
    margin-top: 0.2rem;
    font-weight: 700;
    font-size: 1.1rem;
}

.value.small {
    font-size: 0.95rem;
    font-weight: 600;
}

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

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

.table th,
.table td {
    border-bottom: 1px solid var(--line);
    padding: 0.65rem 0.5rem;
    text-align: left;
    vertical-align: top;
}

.table th[data-sort] {
    cursor: pointer;
    color: var(--accent);
}

.table th[data-sort]:hover {
    text-decoration: underline;
}

.empty {
    color: var(--muted);
    padding: 0.5rem 0;
}

.hidden {
    display: none;
}

.changes {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.75rem;
}

.change-item {
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 0.75rem;
    background: #fcfdfd;
}

.change-head {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.4rem;
}

.badge {
    border: 1px solid #b4d9d4;
    border-radius: 999px;
    padding: 0.1rem 0.55rem;
    font-size: 0.75rem;
    color: #115e59;
    background: #ecfdf5;
}

.histogram {
    display: flex;
    align-items: end;
    gap: 0.4rem;
    min-height: 120px;
    padding-top: 0.4rem;
}

.hist-bar {
    flex: 1;
    min-width: 40px;
}

.hist-bar-visual {
    width: 100%;
    background: linear-gradient(180deg, #34d399, #059669);
    border-radius: 6px 6px 0 0;
    min-height: 2px;
}

.hist-label {
    font-size: 0.72rem;
    color: var(--muted);
    margin-top: 0.25rem;
    line-height: 1.2;
}

a {
    color: #0f766e;
}

@media (max-width: 640px) {
    .summary-grid {
        grid-template-columns: 1fr 1fr;
    }
}