/* Solar niche shared stylesheet — mobile-first, light/dark via prefers-color-scheme.
   No external fonts or frameworks; every page stays well under 100KB. */

:root {
  --bg: #f8f7f3;
  --surface: #ffffff;
  --surface-2: #f1efe8;
  --text: #1c2230;
  --text-muted: #5d6475;
  --border: #e2e0d8;
  --accent: #1f4e8c;
  --accent-soft: #e8eef8;
  --sun: #f0a020;
  --sun-soft: #fdf1dc;
  --great: #23824a;
  --good: #4d7f2a;
  --fair: #a06a12;
  --poor: #b04a2c;
  --link: #1f4e8c;
  --shadow: 0 1px 2px rgba(28, 34, 48, 0.06), 0 1px 12px rgba(28, 34, 48, 0.05);
  --radius: 10px;
  --max-width: 800px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11141b;
    --surface: #181c25;
    --surface-2: #1f2430;
    --text: #e8eaf0;
    --text-muted: #a3a9b8;
    --border: #2b3140;
    --accent: #8fb4ec;
    --accent-soft: #1d2638;
    --sun: #f5b545;
    --sun-soft: #2e2615;
    --great: #5cc788;
    --good: #9fcf6a;
    --fair: #e3b25a;
    --poor: #e8876a;
    --link: #8fb4ec;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 1px 12px rgba(0, 0, 0, 0.3);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--link); }
h1 { font-size: 1.7rem; line-height: 1.25; margin: 0.6rem 0 0.8rem; }
h2 { font-size: 1.2rem; line-height: 1.3; margin: 0 0 0.6rem; }
.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 16px; }

/* Header */
.site-header { background: var(--surface); border-bottom: 1px solid var(--border); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 54px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; display: flex; align-items: center; gap: 8px; }
.sun { width: 18px; height: 18px; border-radius: 50%; background: var(--sun); box-shadow: 0 0 0 4px var(--sun-soft); }
.site-header nav { display: flex; gap: 16px; font-size: 0.95rem; }
.site-header nav a { text-decoration: none; }

.breadcrumbs { font-size: 0.85rem; color: var(--text-muted); margin-top: 14px; }
.breadcrumbs a { color: var(--text-muted); }

.lede { font-size: 1.08rem; }

/* Cards */
.card, .summary {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin: 18px 0;
}
.card ul { padding-left: 1.2rem; }

/* Summary */
.verdict { font-weight: 700; font-size: 1.05rem; padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.verdict span { font-weight: 500; }
.verdict-great { background: color-mix(in srgb, var(--great) 14%, transparent); color: var(--great); }
.verdict-good { background: color-mix(in srgb, var(--good) 14%, transparent); color: var(--good); }
.verdict-fair { background: color-mix(in srgb, var(--fair) 14%, transparent); color: var(--fair); }
.verdict-poor { background: color-mix(in srgb, var(--poor) 14%, transparent); color: var(--poor); }
.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (min-width: 640px) { .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.stat { background: var(--surface-2); border-radius: 8px; padding: 10px 12px; }
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; }
.stat-value { font-size: 1.3rem; font-weight: 700; }
.stat-sub { font-size: 0.82rem; color: var(--text-muted); }

/* Lead gen */
.leadgen { background: var(--sun-soft); border: 1px solid var(--sun); border-radius: var(--radius); padding: 14px 18px; margin: 18px 0; }
.leadgen p { margin: 0 0 10px; }
.btn { display: inline-block; background: var(--accent); color: #fff; padding: 9px 16px; border-radius: 8px; text-decoration: none; font-weight: 600; }
@media (prefers-color-scheme: dark) { .btn { color: #11141b; } }

/* Chart */
.chart svg { width: 100%; height: auto; display: block; }
.legend { font-size: 0.85rem; color: var(--text-muted); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.key { display: inline-block; width: 14px; height: 10px; margin-left: 8px; }
.key-bar { background: var(--sun); border-radius: 2px; }
.key-line { border-top: 2px dashed var(--text); height: 0; }

/* Calculator */
.calc-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.calc-form label { font-size: 0.85rem; color: var(--text-muted); display: flex; flex-direction: column; gap: 4px; }
.calc-form label.wide { grid-column: 1 / -1; }
.calc-form input, .calc-form select, .search input {
  font: inherit; color: var(--text); background: var(--surface-2);
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; width: 100%;
}
.calc-out { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); }
@media (min-width: 640px) { .calc-out { grid-template-columns: repeat(5, minmax(0, 1fr)); } }
.calc-out span { display: block; font-size: 0.78rem; color: var(--text-muted); }
.calc-out strong { font-size: 1.05rem; }

/* FAQ */
.faq details { border-top: 1px solid var(--border); padding: 10px 0; }
.faq details:first-of-type { border-top: 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { margin: 8px 0 0; }

/* Nearby */
.nearby { list-style: none; padding: 0 !important; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 16px; }
.nearby li { display: flex; justify-content: space-between; gap: 8px; border-bottom: 1px dashed var(--border); padding: 4px 0; }
.nearby span { color: var(--text-muted); font-size: 0.9rem; white-space: nowrap; }

/* Tables */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
table.data th, table.data td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
table.data th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--text-muted); }

/* Search */
.search label { font-weight: 600; display: block; margin-bottom: 6px; }
#q-results { list-style: none; padding: 0; margin: 6px 0 0; }
#q-results li a { display: block; padding: 6px 4px; border-bottom: 1px solid var(--border); text-decoration: none; }

.states-az { columns: 2; padding-left: 1.2rem; }
@media (min-width: 640px) { .states-az { columns: 3; } }

/* Footer */
.site-footer { font-size: 0.85rem; color: var(--text-muted); border-top: 1px solid var(--border); margin-top: 28px; padding: 16px 0 28px; }
.disclaimer { background: var(--surface-2); border-radius: 8px; padding: 10px 12px; margin-bottom: 10px; }

/* Guides */
.prose h2 { margin-top: 1.4rem; }
.prose h2:first-child { margin-top: 0; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin: 0.25rem 0; }
.prose .table-wrap { margin: 0.8rem 0; }
.prose blockquote { margin: 0.8rem 0; padding: 8px 14px; border-left: 4px solid var(--sun); background: var(--surface-2); border-radius: 0 8px 8px 0; }