:root {
    --color-bg: #ffffff;
    --color-surface: #f7f9fb;
    --color-surface-2: #eef3f7;
    --color-border: #d9e0e6;
    --color-text: #1a2230;
    --color-text-muted: #5a6573;
    --color-primary: #f59e0b;
    --color-primary-dark: #c47803;
    --color-primary-soft: #fff5e1;
    --color-accent: #0e7c66;
    --color-danger: #b32d1f;
    --color-success: #1f7a3a;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 2px rgba(20, 30, 50, 0.06);
    --shadow-md: 0 6px 18px rgba(20, 30, 50, 0.08);

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

    --container: 1080px;
    --container-narrow: 760px;
}

*, *::before, *::after { box-sizing: border-box; }

html { font-size: 16px; }

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }

h1, h2, h3, h4 {
    line-height: 1.2;
    margin: 0 0 var(--space-4);
    color: var(--color-text);
}

h1 { font-size: 1.875rem; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.125rem; }

p { margin: 0 0 var(--space-4); }

ul { padding-left: var(--space-5); }

img { max-width: 100%; height: auto; display: block; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.container.narrow {
    max-width: var(--container-narrow);
}

.page {
    padding: var(--space-6) var(--space-4) var(--space-7);
}

/* ---- header ---- */

.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.header-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 700;
    color: var(--color-text);
    font-size: 1.125rem;
}
.brand:hover { text-decoration: none; }
.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.95rem;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}
.site-nav a {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    padding: var(--space-1) 0;
}
.site-nav a:hover { color: var(--color-text); text-decoration: none; }

@media (min-width: 720px) {
    .header-row {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: var(--space-4);
    }
    .site-nav { gap: var(--space-5); }
}

/* ---- footer ---- */

.site-footer {
    margin-top: var(--space-8);
    background: var(--color-surface-2);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}
.footer-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-5) var(--space-4);
}
.footer-brand { font-weight: 700; color: var(--color-text); margin: 0; }
.footer-copy { margin: 0; }

@media (min-width: 720px) {
    .footer-row { flex-direction: row; align-items: center; justify-content: space-between; }
}

/* ---- forms ---- */

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 720px) {
    .form-grid.cols-2 { grid-template-columns: 1fr 1fr; }
}

.field { display: flex; flex-direction: column; gap: var(--space-1); }
.field label { font-weight: 600; font-size: 0.95rem; }
.field .hint { color: var(--color-text-muted); font-size: 0.85rem; }
.field .err { color: var(--color-danger); font-size: 0.85rem; }

.input, .select, .textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    font: inherit;
    color: inherit;
}
.input:focus, .select:focus, .textarea:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
    border-color: var(--color-primary);
}

.input-group {
    display: flex;
    gap: var(--space-2);
}
.input-group .input { flex: 1 1 auto; }
.input-group .select { flex: 0 0 110px; }

.checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}
.checkbox-row input { margin-top: 4px; }

.btn {
    display: inline-block;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    background: #fff;
    color: var(--color-text);
}
.btn:hover { text-decoration: none; }
.btn-primary {
    background: var(--color-primary);
    color: #1a1304;
    border-color: var(--color-primary-dark);
}
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn-block { width: 100%; display: block; }

/* ---- calculator page ---- */

.hero {
    padding: var(--space-6) 0 var(--space-5);
}
.hero h1 { font-size: 2rem; }
.hero p.lead { font-size: 1.05rem; color: var(--color-text-muted); max-width: 60ch; }

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-5);
}

.results {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
}
@media (min-width: 720px) {
    .results { grid-template-columns: repeat(3, 1fr); }
}

.result {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
}
.result-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-1);
}
.result-value {
    font-size: 1.5rem;
    font-weight: 700;
}
.result-unit {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-left: 4px;
}

.result.highlight {
    background: var(--color-primary-soft);
    border-color: var(--color-primary);
}

.notice {
    padding: var(--space-3) var(--space-4);
    background: var(--color-surface-2);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    color: var(--color-text);
}

.error-summary {
    padding: var(--space-3) var(--space-4);
    background: #fde9e6;
    border-left: 3px solid var(--color-danger);
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    margin-bottom: var(--space-4);
}

.honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.legend {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--space-3);
}

.section-title {
    margin-top: var(--space-6);
}

.county-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-bottom: var(--space-5);
}
@media (min-width: 560px) {
    .county-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 860px) {
    .county-grid { grid-template-columns: repeat(4, 1fr); }
}

.county-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-4);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: border-color 120ms ease, box-shadow 120ms ease;
}
.county-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
}
.county-name { font-weight: 600; font-size: 0.95rem; line-height: 1.25; }
.county-meta { font-size: 0.82rem; color: var(--color-text-muted); }

ol { padding-left: var(--space-5); }
ol li, ul li { margin-bottom: var(--space-1); }

/* ---- radio cards ---- */

.radio-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
}
@media (min-width: 720px) {
    .radio-group { grid-template-columns: 1fr 1fr; }
}

.radio-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-4);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color 120ms ease, background 120ms ease;
}
.radio-card:hover { border-color: var(--color-primary); }
.radio-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.radio-card:has(input[type="radio"]:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
    box-shadow: var(--shadow-sm);
}
.radio-title { font-weight: 600; }
.radio-desc { font-size: 0.88rem; color: var(--color-text-muted); line-height: 1.4; }

/* ---- comparison ---- */

.comparison {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-top: var(--space-3);
}
@media (min-width: 720px) {
    .comparison { grid-template-columns: 1fr 1fr; }
}

.scenario {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
}
.scenario.is-primary {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-soft);
}
.scenario-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}
.scenario-head h4 { margin: 0; font-size: 1rem; }
.badge {
    display: inline-block;
    padding: 2px 10px;
    background: var(--color-primary);
    color: #1a1304;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.scenario-rows {
    margin: 0;
    display: grid;
    gap: var(--space-2);
    font-size: 0.92rem;
}
.scenario-rows > div {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-3);
    padding: 6px 0;
    border-bottom: 1px dashed var(--color-border);
}
.scenario-rows > div:last-child { border-bottom: 0; }
.scenario-rows dt {
    color: var(--color-text-muted);
    font-weight: 500;
}
.scenario-rows dd {
    margin: 0;
    text-align: right;
    font-variant-numeric: tabular-nums;
}
.scenario-rows dd.strong { font-weight: 700; color: var(--color-text); }

/* ---- info pages ---- */

.toc {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    margin-bottom: var(--space-5);
}
.toc h2 { font-size: 1rem; margin-bottom: var(--space-2); }
.toc ol { padding-left: var(--space-4); margin: 0; }
.toc ol li { font-size: 0.95rem; }

.info-block {
    margin-bottom: var(--space-6);
}
.info-block h2 { scroll-margin-top: 80px; }

.kv-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-3) 0;
    font-size: 0.95rem;
}
.kv-table th, .kv-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}
.kv-table th {
    background: var(--color-surface);
    font-weight: 600;
}
.kv-table tbody tr:last-child td { border-bottom: 0; }
.kv-table td.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.faq details {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    margin-bottom: var(--space-3);
    overflow: hidden;
}
.faq summary {
    padding: var(--space-3) var(--space-4);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
    content: '+';
    float: right;
    font-weight: 700;
    color: var(--color-text-muted);
}
.faq details[open] summary::after { content: '−'; }
.faq details > *:not(summary) {
    padding: 0 var(--space-4) var(--space-3);
}

/* ---- breadcrumbs ---- */

.breadcrumbs {
    padding: var(--space-2) 0 var(--space-3);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}
.breadcrumbs ol {
    padding: 0;
    margin: 0;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
}
.breadcrumbs li {
    margin-bottom: 0;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}
.breadcrumbs li + li::before {
    content: '/';
    color: var(--color-border);
    margin: 0 6px 0 0;
}
.breadcrumbs a { color: var(--color-text-muted); }

/* ---- admin ---- */

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
.admin-table th, .admin-table td {
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}
.admin-table th {
    background: var(--color-surface);
    font-weight: 600;
}
.status-pill {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.status-new { background: #e3f2ff; color: #134d80; }
.status-contacted { background: #fff5e1; color: #8a4a00; }
.status-closed { background: #e6f4ea; color: #1f6f3a; }
.status-spam { background: #fde9e6; color: #802118; }