:root {
  --bg: #f7f6f2;
  --ink: #1d2320;
  --muted: #5b625e;
  --accent: #2f6b4f;
  --card: #ffffff;
  --line: #e2dfd6;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }
a { color: var(--accent); }

.site-header { border-bottom: 1px solid var(--line); background: var(--card); }
.site-header .wrap { display: flex; justify-content: space-between; align-items: center; height: 64px; }
.logo { font-weight: 700; text-decoration: none; color: var(--ink); }
nav a { margin-left: 20px; text-decoration: none; color: var(--muted); }
nav a:hover { color: var(--accent); }

.hero { padding: 72px 0 56px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; margin: 0 0 16px; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 40em; }
.btn {
  display: inline-block; margin-top: 16px; padding: 12px 22px;
  background: var(--accent); color: #fff; border-radius: 8px; text-decoration: none; font-weight: 600;
}
.btn:hover { filter: brightness(1.1); }

section { padding-bottom: 48px; }
h2 { margin-top: 0; }
.steps li { margin-bottom: 8px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 20px; }
.card h3 { margin: 0 0 8px; }
.card p { color: var(--muted); margin: 0 0 12px; }
.tag { font-size: .8rem; background: var(--bg); border: 1px solid var(--line); padding: 2px 8px; border-radius: 99px; }

details { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 600; }

.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; padding: 20px 0; }
.site-footer p { margin: 6px 0; }

@media (max-width: 560px) {
  nav a { margin-left: 12px; font-size: .9rem; }
}

/* Loakontroll */
.narrow { max-width: 760px; }
.page-head { padding: 48px 0 8px; }
.page-head h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); line-height: 1.2; margin: 0 0 12px; }
.checker fieldset { border: 1px solid var(--line); background: var(--card); border-radius: 10px; padding: 18px 20px 14px; margin: 0 0 16px; }
.checker legend { font-weight: 700; font-size: 1.1rem; padding: 0 6px; display: flex; align-items: center; gap: 8px; }
.num { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: #fff; font-size: .85rem; }
.choice { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; margin-bottom: 8px; cursor: pointer; }
.choice:hover { border-color: var(--accent); }
.choice:has(input:checked) { border-color: var(--accent); background: #eef5f1; }
.choice input { margin-top: 5px; accent-color: var(--accent); }
.choice small { display: block; color: var(--muted); font-size: .9rem; }
.choice.inline { display: inline-flex; margin-right: 8px; }
.hint { color: var(--muted); font-size: .92rem; margin: 0 0 10px; }
.input-row { display: flex; align-items: center; gap: 8px; }
.input-row input { font: inherit; font-size: 1.1rem; padding: 10px 12px; width: 160px; border: 1px solid var(--line); border-radius: 8px; }
.input-row input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.checker .btn { border: 0; font: inherit; font-weight: 600; cursor: pointer; margin-top: 4px; }
.form-error { color: #a33; font-weight: 600; }

.result { margin: 28px 0; padding: 22px 24px; border-radius: 12px; border: 2px solid var(--line); background: var(--card); scroll-margin-top: 16px; }
.result h2 { margin: 0 0 6px; font-size: 1.6rem; }
.result h3 { margin: 18px 0 6px; font-size: 1.05rem; }
.result-label { margin: 0; text-transform: uppercase; letter-spacing: .06em; font-size: .78rem; font-weight: 700; color: var(--muted); }
.result-basis { color: var(--muted); font-size: .92rem; margin: 0 0 14px; }
.result.ok { border-color: #5a9b76; }
.result.ok h2 { color: #2f6b4f; }
.result.info { border-color: #c79a3b; }
.result.info h2 { color: #8a6418; }
.result.warn { border-color: #c0584b; }
.result.warn h2 { color: #9d3a2f; }
.extra { background: var(--bg); border-left: 3px solid var(--line); padding: 8px 12px; border-radius: 4px; font-size: .95rem; }
.result-foot { font-size: .85rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 10px; margin-top: 16px; }
.notes { padding-top: 8px; }
.notes li { margin-bottom: 8px; }
.source { font-size: .85rem; color: var(--muted); }
.card-link { text-decoration: none; color: inherit; border-color: var(--accent); }
.card-link:hover { box-shadow: 0 2px 10px rgba(0,0,0,.06); }
.tag-live { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Soojustuse kalkulaator */
.examples { font-size: .92rem; color: var(--muted); margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.chip { font: inherit; font-size: .88rem; padding: 4px 12px; border-radius: 99px; border: 1px solid var(--line); background: var(--bg); cursor: pointer; color: var(--ink); }
.chip:hover { border-color: var(--accent); color: var(--accent); }
.layers { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.layer { border: 1px solid var(--line); border-left: 8px solid var(--sw, #ccc); border-radius: 8px; padding: 10px 12px; background: #fff; }
.layer.ignored { opacity: .6; }
.layer-top { display: flex; align-items: center; gap: 8px; }
.layer-no { font-weight: 700; color: var(--muted); min-width: 1.4em; }
.layer-top select { flex: 1; min-width: 0; font: inherit; padding: 7px 8px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.layer-btns { display: flex; gap: 4px; }
.layer-btns button { font: inherit; width: 32px; height: 32px; border: 1px solid var(--line); background: var(--bg); border-radius: 6px; cursor: pointer; color: var(--ink); }
.layer-btns button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.layer-btns button:disabled { opacity: .35; cursor: default; }
.layer-fields { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 8px; }
.layer-fields.frame { background: var(--bg); padding: 8px; border-radius: 6px; }
.fld { display: flex; flex-direction: column; font-size: .8rem; color: var(--muted); gap: 2px; }
.fld input, .fld select { font: inherit; font-size: .95rem; color: var(--ink); padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; width: 100%; background: #fff; }
.fld input:disabled { background: var(--bg); color: var(--muted); }
.fld input:focus, .fld select:focus, .layer-top select:focus { outline: 2px solid var(--accent); border-color: transparent; }
.fld.out output { font-size: .95rem; color: var(--ink); font-weight: 600; padding: 6px 0; }
.frame-toggle { display: flex; gap: 6px; align-items: center; font-size: .88rem; color: var(--muted); margin-top: 8px; cursor: pointer; }
.frame-toggle input { accent-color: var(--accent); }
.btn-ghost { background: transparent; color: var(--accent); border: 1px dashed var(--accent) !important; margin-top: 0; }
.cond { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }

.calc-result { border-color: var(--line); }
.calc-result h3 { margin-top: 22px; }
.u-head { display: flex; justify-content: space-between; gap: 20px; align-items: center; flex-wrap: wrap; }
.u-big { font-size: 2.2rem; font-weight: 700; margin: 0; line-height: 1.2; }
.u-big span { font-size: 1rem; font-weight: 500; color: var(--muted); }
.u-head.ok .u-big { color: #2f6b4f; }
.u-head.info .u-big { color: #8a6418; }
.u-head.warn .u-big { color: #9d3a2f; }
.u-sub { margin: 0; color: var(--muted); }
.u-verdict { padding: 8px 12px; border-radius: 6px; margin: 12px 0 6px; font-weight: 600; }
.u-verdict.ok { background: #eef5f1; color: #2f6b4f; }
.u-verdict.info { background: #fbf3e2; color: #7a5813; }
.u-verdict.warn { background: #fbecea; color: #9d3a2f; }
.u-scale { flex: 1; min-width: 220px; max-width: 340px; }
.scale-bar { position: relative; height: 14px; border-radius: 7px; overflow: hidden; }
.zone { position: absolute; top: 0; bottom: 0; }
.z-good { background: #5a9b76; } .z-ok { background: #a8cfb6; } .z-weak { background: #e6c3bd; }
.marker { position: absolute; top: -3px; width: 4px; height: 20px; margin-left: -2px; background: var(--ink); border-radius: 2px; }
.scale-bar { overflow: visible; }
.scale-lbl { position: relative; display: flex; justify-content: space-between; font-size: .75rem; color: var(--muted); margin-top: 4px; }
.small { font-size: .88rem; color: var(--muted); margin: 6px 0; }
.chart { width: 100%; height: auto; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.chart .ax { font-size: 11px; fill: #5b625e; }
.chart .grid { stroke: #e9e6de; stroke-width: 1; }
.chart .zero { stroke: #999; stroke-dasharray: 2 3; }
.chart .edge { stroke: #888; stroke-width: 1; }
.chart .line-t { fill: none; stroke: #c0392b; stroke-width: 2.5; }
.chart .dot-t { fill: #c0392b; }
.chart .dew { stroke: #2471a3; stroke-dasharray: 6 4; stroke-width: 1.5; }
.chart .dew-t { fill: #2471a3; }
.chart .line-sat { fill: none; stroke: #c0392b; stroke-width: 2; stroke-dasharray: 5 4; }
.chart .line-p { fill: none; stroke: #2471a3; stroke-width: 2.5; }
.chart .dot-k { fill: rgba(192, 57, 43, .25); stroke: #c0392b; stroke-width: 2; }
.table-wrap { overflow-x: auto; }
.layers-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.layers-table th, .layers-table td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.layers-table td:nth-child(2) { white-space: normal; }
.layers-table th { color: var(--muted); font-weight: 600; }
.layers-table tr.film td { color: var(--muted); }
.layers-table tr.sum td { font-weight: 700; border-top: 2px solid var(--line); }
.layers-table small { color: var(--muted); }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; border: 1px solid #bbb; vertical-align: middle; }

@media (max-width: 560px) {
  .layer-fields, .cond { grid-template-columns: repeat(2, 1fr); }
  .layer-btns button { width: 28px; height: 28px; }
}
.checker fieldset { min-width: 0; }
.layer-top select { width: 100%; }
.scale-lbl { height: 1.2em; display: block; }
.scale-lbl span { position: absolute; transform: translateX(-50%); }
.scale-lbl span:first-child { transform: none; }
.scale-lbl span:last-child { transform: translateX(-100%); }
.fld { justify-content: space-between; }
@media (max-width: 560px) {
  .layer-top { flex-wrap: wrap; }
  .layer-top select { order: 3; flex-basis: 100%; }
  .layer-btns { margin-left: auto; }
}