:root {
  --bg: #fbfaf7; --surface: #ffffff; --ink: #1c1b19; --muted: #6b675f; --line: #e6e2d9;
  --accent: #b4321f; --accent-ink: #ffffff; --ok: #1f6b3a; --warn-bg: #fff4e5; --warn: #8a4b00;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151412; --surface: #1e1d1a; --ink: #f1eee8; --muted: #a39e94; --line: #34312c;
    --accent: #e0573f; --ok: #6fcf8f; --warn-bg: #3a2a12; --warn: #ffc77a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }
header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; justify-content: space-between; align-items: center; height: 60px; }
.logo { font-weight: 800; letter-spacing: -0.02em; color: var(--ink); text-decoration: none; }
.logo span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
.hero { padding: 56px 0 28px; }
.hero h1 { font-size: clamp(30px, 5vw, 48px); line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 16px; max-width: 760px; }
.hero p { font-size: 19px; color: var(--muted); max-width: 640px; margin: 0; }
.pill { display: inline-block; font-size: 13px; font-weight: 600; color: var(--accent); border: 1px solid var(--accent); border-radius: 99px; padding: 3px 10px; margin-bottom: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 24px; margin: 24px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 4px; }
label small { font-weight: 400; color: var(--muted); }
input, select { width: 100%; padding: 10px 12px; font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 10px; padding: 12px 20px; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.result { margin-top: 20px; display: none; }
.result.show { display: block; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.kpi { border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.kpi b { display: block; font-size: 24px; letter-spacing: -0.02em; }
.kpi span { color: var(--muted); font-size: 14px; }
.warn { background: var(--warn-bg); color: var(--warn); border-radius: 10px; padding: 12px 14px; margin-top: 10px; font-size: 15px; }
.okmsg { color: var(--ok); font-weight: 600; margin-top: 10px; }
h2 { font-size: 26px; letter-spacing: -0.02em; margin: 48px 0 8px; }
.muted { color: var(--muted); }
.price { font-size: 40px; font-weight: 800; letter-spacing: -0.03em; }
ul.check { padding-left: 0; list-style: none; }
ul.check li { padding-left: 26px; position: relative; margin: 6px 0; }
ul.check li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 800; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tablewrap { overflow-x: auto; }
.bad { color: var(--accent); font-weight: 700; }
.good { color: var(--ok); font-weight: 700; }
details { border-bottom: 1px solid var(--line); padding: 12px 0; }
summary { font-weight: 600; cursor: pointer; }
footer { border-top: 1px solid var(--line); margin-top: 64px; padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); }
code { background: var(--bg); border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px; font-size: 13px; }
@media print { header.top, footer, .noprint { display: none !important; } .card { border: 0; } }