:root { --bg: #F0F9FF; --fg: #0C4A6E; --primary: #0891B2; --good: #16A34A; --warn: #F59E0B; --bad: #DC2626; --muted: #64748B; --border: #BAE6FD; --soft: #FFFFFF; }
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: Inter, system-ui, sans-serif; line-height: 1.55; }
a { color: var(--primary); }
.topbar { display: flex; align-items: center; padding: 18px 28px; background: var(--soft); border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: 10px; font-family: Fraunces, serif; font-weight: 700; font-size: 20px; color: var(--primary); }
main { max-width: 720px; margin: 0 auto; padding: 48px 24px 80px; }
h1 { font-family: Fraunces, serif; font-weight: 700; font-size: clamp(30px, 5vw, 48px); margin: 0 0 16px; line-height: 1.1; }
h1 em { color: var(--primary); font-style: italic; }
.lead { font-size: 17px; color: var(--muted); margin: 0 0 32px; }
.form { display: flex; gap: 10px; margin-bottom: 24px; }
.form input { flex: 1; padding: 14px 16px; border: 2px solid var(--border); border-radius: 8px; font-family: ui-monospace, monospace; font-size: 18px; letter-spacing: 0.1em; text-align: center; background: var(--soft); }
.form input:focus { outline: 2px solid var(--primary); border-color: var(--primary); }
.form button { background: var(--primary); color: #fff; border: 0; padding: 14px 24px; border-radius: 8px; font-family: inherit; font-weight: 600; cursor: pointer; }
.result { padding: 28px; background: var(--soft); border: 1px solid var(--border); border-radius: 12px; margin-bottom: 24px; }
.verdict { font-family: Fraunces, serif; font-weight: 700; font-size: 36px; margin: 0 0 6px; }
.verdict.ok { color: var(--good); }
.verdict.warn { color: var(--warn); }
.verdict.bad { color: var(--bad); }
.commune-name { color: var(--muted); margin: 0 0 18px; }
.pollutants { display: grid; grid-template-columns: 1fr; gap: 8px; }
.pollutant { display: flex; justify-content: space-between; padding: 12px 16px; background: var(--bg); border-radius: 6px; border-left: 3px solid var(--good); }
.pollutant.warn { border-left-color: var(--warn); }
.pollutant.bad { border-left-color: var(--bad); }
.pollutant .label { font-weight: 500; }
.pollutant .value { font-family: ui-monospace, monospace; font-size: 13px; color: var(--muted); }
.block { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.block h2 { font-family: Fraunces, serif; font-size: 20px; margin: 0 0 12px; }
.block ul { padding-left: 20px; }
.block li { margin-bottom: 6px; font-size: 14px; color: var(--muted); }
.muted { color: var(--muted); font-size: 13px; }
footer { text-align: center; padding: 24px; color: var(--muted); font-size: 12px; }