/* YardCrafter — shared styles. System fonts, one accent, neutral grays. */
:root {
  --accent: #e8590c;
  --accent-dark: #c94a06;
  --accent-tint: #fff1e8;
  --ink: #1a1c1f;
  --ink-soft: #4a4f57;
  --muted: #6b7280;
  --line: #e6e8eb;
  --bg: #ffffff;
  --panel: #f7f8fa;
  --panel-2: #f0f2f5;
  --ok: #157347;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .05);
  --maxw: 860px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --accent: #ff7a33;
    --accent-dark: #ff9052;
    --accent-tint: #2a1a10;
    --ink: #f2f4f7;
    --ink-soft: #c3c8d0;
    --muted: #97a0ad;
    --line: #2b2f36;
    --bg: #14161a;
    --panel: #1b1e23;
    --panel-2: #22262c;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
  overflow-x: hidden;
}
img, svg { max-width: 100%; }
a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.25; color: var(--ink); }
h1 { font-size: 1.95rem; margin: .2em 0 .3em; letter-spacing: -.01em; }
h2 { font-size: 1.4rem; margin: 1.8em 0 .5em; }
h3 { font-size: 1.12rem; margin: 1.4em 0 .3em; }
p { margin: .6em 0; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---- Header / nav ---- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky; top: 0; z-index: 20;
}
.nav {
  display: flex; align-items: center; gap: 14px;
  max-width: var(--maxw); margin: 0 auto; padding: 12px 20px;
  flex-wrap: wrap;
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 1.12rem; color: var(--ink); letter-spacing: -.01em;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand .logo { width: 24px; height: 24px; flex: none; }
.nav-links { display: flex; flex-wrap: wrap; gap: 4px; margin-left: auto; }
.nav-links a {
  color: var(--ink-soft); padding: 7px 10px; border-radius: 999px;
  font-size: .93rem; font-weight: 500; line-height: 1;
  display: inline-flex; align-items: center; min-height: 34px;
}
.nav-links a:hover { background: var(--panel-2); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--accent-dark); background: var(--accent-tint); }

/* ---- Hero ---- */
.hero { padding: 30px 0 6px; }
.hero p.lede { font-size: 1.1rem; color: var(--ink-soft); margin: 0 0 .2em; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 4px; }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--panel); border: 1px solid var(--line);
  color: var(--ink-soft); font-size: .85rem; font-weight: 600;
  padding: 5px 11px; border-radius: 999px;
}
.badge svg { width: 15px; height: 15px; color: var(--accent); }

/* ---- Calculator card ---- */
.calc-card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; margin: 20px 0;
  box-shadow: var(--shadow);
}
.seg {
  display: inline-flex; background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 999px; padding: 3px; gap: 3px; margin-bottom: 4px; flex-wrap: wrap;
}
.seg button {
  appearance: none; border: 0; background: transparent; cursor: pointer;
  font: inherit; font-size: .9rem; font-weight: 600; color: var(--ink-soft);
  padding: 8px 14px; border-radius: 999px; min-height: 40px;
}
.seg button.active { background: var(--bg); color: var(--accent-dark); box-shadow: var(--shadow); }
.seg button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.field-row { display: block; margin-top: 10px; }
.controls-label { display: block; font-weight: 600; font-size: .9rem; color: var(--ink-soft); margin: 16px 0 6px; }
.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px; margin-top: 6px;
}
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: .85rem; font-weight: 600; color: var(--ink-soft); }
.field .unit-suffix { color: var(--muted); font-weight: 500; }
.field input, .field select, select.opt {
  font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 11px 12px; min-height: 44px; width: 100%;
}
.field input:focus, .field select:focus, select.opt:focus {
  outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent);
}
.opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-top: 8px; }
.opts .field { }

.area-block { position: relative; border: 1px dashed var(--line); border-radius: var(--radius-sm); padding: 12px; margin-top: 10px; }
.area-block .area-title { font-size: .82rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.remove-area {
  position: absolute; top: 8px; right: 8px; background: transparent; border: 1px solid var(--line);
  color: var(--muted); border-radius: 999px; width: 30px; height: 30px; cursor: pointer; font-size: 1rem; line-height: 1;
}
.remove-area:hover { color: var(--accent-dark); border-color: var(--accent); }
.btn-add {
  margin-top: 12px; appearance: none; cursor: pointer; font: inherit; font-weight: 600; font-size: .9rem;
  background: transparent; color: var(--accent-dark); border: 1px dashed var(--accent);
  padding: 9px 14px; border-radius: var(--radius-sm); min-height: 44px;
}
.btn-add:hover { background: var(--accent-tint); }

/* ---- Results ---- */
.results { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 16px; }
.results.empty .result-cards { opacity: .55; }
.result-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.rcard {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 14px 16px;
}
.rcard.primary { border-color: var(--accent); background: var(--accent-tint); }
.rcard .rlabel { font-size: .8rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.rcard .rvalue { font-size: 1.7rem; font-weight: 800; color: var(--ink); letter-spacing: -.02em; margin-top: 2px; }
.rcard.primary .rvalue { color: var(--accent-dark); }
.rcard .rsub { font-size: .85rem; color: var(--muted); margin-top: 2px; }
.result-note { font-size: .88rem; color: var(--muted); margin-top: 12px; }
.result-error { color: #b42318; font-weight: 600; margin-top: 4px; }
@media (prefers-color-scheme: dark) { .result-error { color: #ff9b8a; } }

/* ---- Ad slots (zero height, no fake frames) ---- */
.ad-slot { height: 0; overflow: hidden; margin: 0; }

/* ---- Content prose ---- */
.prose { margin: 8px 0 10px; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: .3em 0; }
.callout {
  background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm); padding: 12px 16px; margin: 14px 0;
}
table.data { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: .95rem; }
table.data th, table.data td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
table.data th { color: var(--ink-soft); font-size: .85rem; text-transform: uppercase; letter-spacing: .03em; }
.table-scroll { overflow-x: auto; }

details.faq { border-bottom: 1px solid var(--line); padding: 4px 0; }
details.faq summary { cursor: pointer; font-weight: 600; padding: 12px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; color: var(--accent); font-weight: 700; }
details.faq[open] summary::after { content: "\2013"; }
details.faq p { margin: 0 0 12px; color: var(--ink-soft); }

/* ---- Related tools ---- */
.related { margin: 26px 0; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-top: 10px; }
.tool-grid a {
  display: block; padding: 14px 16px; background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius-sm); color: var(--ink);
}
.tool-grid a:hover { border-color: var(--accent); text-decoration: none; }
.tool-grid a strong { display: block; color: var(--ink); }
.tool-grid a span { font-size: .88rem; color: var(--muted); }

.disclaimer { font-size: .86rem; color: var(--muted); background: var(--panel); border-radius: var(--radius-sm); padding: 12px 16px; margin: 22px 0 0; }

/* ---- Footer ---- */
.site-footer { border-top: 1px solid var(--line); margin-top: 40px; background: var(--panel); }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 26px 20px; display: grid; gap: 18px; grid-template-columns: 1.3fr 1fr 1fr; }
.footer-inner h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0 0 8px; }
.footer-inner ul { list-style: none; padding: 0; margin: 0; }
.footer-inner li { margin: 5px 0; }
.footer-inner a { color: var(--ink-soft); font-size: .93rem; }
.footer-bottom { border-top: 1px solid var(--line); }
.footer-bottom .wrap { padding: 14px 20px; color: var(--muted); font-size: .85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* ---- Utility ---- */
.skip-link { position: absolute; left: -999px; top: 0; background: var(--accent); color: #fff; padding: 8px 12px; border-radius: 0 0 8px 0; z-index: 30; }
.skip-link:focus { left: 0; }
.pill-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; padding: 0; list-style: none; }
.pill-list a { background: var(--panel); border: 1px solid var(--line); padding: 8px 13px; border-radius: 999px; font-size: .92rem; color: var(--ink-soft); }
.pill-list a:hover { border-color: var(--accent); text-decoration: none; }
.muted { color: var(--muted); }
.center { text-align: center; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  h1 { font-size: 1.6rem; }
  .nav { gap: 8px; }
  .nav-links { width: 100%; margin-left: 0; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}