:root {
  --bg: #f6f1ea; --surface: #fffdf9; --ink: #231b16; --muted: #6a5d53; --line: #e6dccf;
  --accent: #9a4220; --accent-ink: #fff; --accent-soft: #f6e3d9; --ring: #1f6feb;
  --sac: #b4532a; --price: #2b5f8a;
  --shadow: 0 1px 2px rgb(60 35 20 / 6%), 0 8px 24px rgb(60 35 20 / 6%);
  --serif: ui-serif, 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17120f; --surface: #221b16; --ink: #f3ebe3; --muted: #b3a498; --line: #3a2f27;
    --accent: #e08a5f; --accent-ink: #1b110b; --accent-soft: #3a2519; --ring: #79b0ff;
    --sac: #e08a5f; --price: #7fb0e0;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 24px rgb(0 0 0 / 25%);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 var(--sans); overflow-x: hidden; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.7rem, 4.5vw, 2.4rem); line-height: 1.15; max-width: 22ch; }
h2 { font-size: 1.2rem; }
:focus-visible { outline: 3px solid var(--ring); outline-offset: 2px; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px clamp(16px, 4vw, 40px); border-bottom: 1px solid var(--line); background: var(--surface); position: sticky; top: 0; z-index: 5; }
.brand { display: flex; align-items: center; gap: 10px; font: 600 1.25rem var(--serif); }
.logo { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: var(--accent-ink); font: 700 1.1rem var(--serif); }
.tag { font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft); padding: 5px 12px; border-radius: 999px; }

main { max-width: 1120px; margin: 0 auto; padding: clamp(18px, 4vw, 36px) clamp(16px, 4vw, 40px) 24px; display: grid; gap: 16px; }
.page-head { margin-bottom: 6px; }
.eyebrow { margin: 0 0 6px; text-transform: uppercase; letter-spacing: .12em; font-size: .75rem; font-weight: 700; color: var(--accent); }
.muted { color: var(--muted); font-size: .92rem; margin: 0; }
.lead { margin-top: 10px; max-width: 60ch; font-size: 1rem; }
.foot { text-align: center; color: var(--muted); font-size: .85rem; padding: 8px 16px 32px; }
.foot a { color: var(--accent); font-weight: 600; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 20px; box-shadow: var(--shadow); min-width: 0; }

.form { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.field { display: grid; gap: 6px; min-width: 0; align-content: start; }
.field label { font-weight: 600; font-size: .9rem; }
.field small { color: var(--muted); font-size: .8rem; }
input[type=number] { width: 100%; min-height: 46px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); font: 600 1.05rem var(--sans); font-variant-numeric: tabular-nums; }
input[type=number]:hover { border-color: var(--accent); }
.chips { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 8px; }
.chips button, .seg button { font: inherit; font-weight: 600; font-size: .88rem; min-height: 40px; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer; }
.chips button:hover, .seg button:hover { color: var(--ink); border-color: var(--accent); }
.chips button[aria-pressed=true], .seg button[aria-pressed=true] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.alert { margin: 0; padding: 14px 18px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); font-weight: 600; border: 1px solid var(--accent); }

.verdict .big { font: 600 clamp(1.25rem, 3.2vw, 1.8rem)/1.3 var(--serif); margin: 0 0 8px; }
.verdict strong { color: var(--accent); }
.pill { display: inline-block; margin-left: 10px; vertical-align: middle; font: 700 .8rem var(--sans); padding: 3px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }

.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sys h3 { display: flex; align-items: center; gap: 8px; font-size: 1.25rem; margin-bottom: 12px; }
.sys h3 i, .key i { width: 12px; height: 12px; border-radius: 4px; display: inline-block; }
.sys.sac h3 i, .key.sac i { background: var(--sac); }
.sys.price h3 i, .key.price i { background: var(--price); }
.sys dl { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 12px; }
.sys dt { color: var(--muted); font-size: .82rem; }
.sys dd { margin: 2px 0 0; font: 600 clamp(1.05rem, 2.4vw, 1.35rem) var(--serif); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }

figure { margin: 0; }
figcaption { font: 600 1.05rem var(--serif); margin-bottom: 8px; }
.chart { width: 100%; height: auto; display: block; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .axis { fill: var(--muted); font-size: 14px; }
.chart .line { fill: none; stroke-width: 2.5; stroke-linejoin: round; stroke-linecap: round; }
.chart .s-sac { stroke: var(--sac); }
.chart .s-price { stroke: var(--price); stroke-dasharray: none; }
.legend { margin: -4px 0 0; display: flex; gap: 18px; justify-content: center; font-size: .88rem; font-weight: 600; color: var(--muted); }
.key { display: inline-flex; align-items: center; gap: 6px; }

.table-head { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 6px; }
.table-head h2 { margin-right: auto; }
.seg { display: inline-flex; gap: 6px; }
.btn { font: inherit; font-weight: 600; font-size: .92rem; min-height: 40px; padding: 8px 16px; border-radius: 10px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); cursor: pointer; }
.btn:hover { filter: brightness(1.08); }
.table-wrap { margin-top: 12px; max-height: 420px; overflow: auto; border: 1px solid var(--line); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; font-size: .9rem; }
th, td { padding: 8px 10px; text-align: right; white-space: nowrap; border-bottom: 1px solid var(--line); }
th:first-child, td:first-child { text-align: left; }
thead th { position: sticky; top: 0; background: var(--accent-soft); color: var(--accent); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; }
tbody tr:nth-child(even) { background: color-mix(in srgb, var(--bg) 55%, transparent); }

@media (max-width: 760px) {
  .form { grid-template-columns: 1fr 1fr; }
  .cols { grid-template-columns: 1fr; }
}
@media (max-width: 440px) {
  .card { padding: 16px; }
  .form { gap: 12px; }
  .field small { display: none; }
  .tag { display: none; }
  .sys dl { gap: 12px 8px; }
  th, td { padding: 8px 5px; font-size: .78rem; }
  .chart .axis { font-size: 19px; }
  .pill { margin-left: 0; margin-top: 6px; display: table; }
}
@media (prefers-reduced-motion: no-preference) { .btn, .chips button, .seg button { transition: filter .15s, border-color .15s; } }