:root { color-scheme: light; --bg:#f3f6f8; --panel:#fff; --text:#17212b; --muted:#52616f; --brand:#006d77; --brand-dark:#004f56; --line:#d8e0e5; --error:#b42318; font-family:system-ui,-apple-system,"Segoe UI",sans-serif; }
* { box-sizing:border-box; }
body { margin:0; background:var(--bg); color:var(--text); line-height:1.6; }
a { color:var(--brand-dark); }
.container { width:min(960px,calc(100% - 32px)); margin:0 auto; }
header { background:#083344; color:#fff; padding:20px 0; }
header a { color:#fff; text-decoration:none; }
main { padding:36px 0 56px; }
h1 { margin:0 0 8px; font-size:clamp(1.7rem,4vw,2.4rem); }
h2 { margin-top:0; }
.lead { color:var(--muted); margin-top:0; }
.grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:20px; }
.card { background:var(--panel); border:1px solid var(--line); border-radius:14px; padding:24px; box-shadow:0 8px 24px rgb(15 23 42 / 6%); }
.card a.button { display:inline-block; }
.field { margin-bottom:22px; }
.field label { display:flex; justify-content:space-between; gap:16px; font-weight:650; }
.field output { color:var(--brand-dark); font-variant-numeric:tabular-nums; }
input[type="range"] { width:100%; accent-color:var(--brand); }
select,input[type="number"] { width:100%; padding:10px 12px; border:1px solid #9aa8b3; border-radius:8px; background:#fff; font:inherit; }
button,.button { border:0; border-radius:9px; padding:11px 18px; color:#fff; background:var(--brand); font:inherit; font-weight:700; cursor:pointer; text-decoration:none; }
button:hover,.button:hover { background:var(--brand-dark); }
button:disabled { opacity:.55; cursor:wait; }
.result { min-height:150px; border-left:5px solid var(--brand); }
.result-value { font-size:clamp(2rem,6vw,3.4rem); font-weight:750; margin:4px 0; font-variant-numeric:tabular-nums; }
.status { min-height:1.6em; color:var(--muted); }
.status.error { color:var(--error); font-weight:650; }
.metrics { display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:12px; margin:0; }
.metrics div { background:#edf6f6; border-radius:10px; padding:14px; }
.metrics dt { color:var(--muted); font-size:.9rem; }
.metrics dd { margin:3px 0 0; font-size:1.35rem; font-weight:700; font-variant-numeric:tabular-nums; }
.hidden { display:none; }
.chart-card { margin-top:20px; }
.chart-heading { display:flex; align-items:flex-start; justify-content:space-between; gap:20px; }
.chart-heading .lead { margin-bottom:0; }
.chart-heading button { flex:0 0 auto; }
.chart-scroll { width:100%; overflow-x:auto; border:1px solid var(--line); border-radius:10px; background:#fff; }
.psychrometric-chart,.mollier-chart { display:block; width:100%; min-width:700px; height:auto; }
.mollier-controls { display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:0 18px; }
.mollier-actions { display:flex; align-items:end; padding-bottom:22px; }
.table-scroll { width:100%; overflow-x:auto; }
.state-table { width:100%; border-collapse:collapse; white-space:nowrap; }
.state-table th,.state-table td { padding:10px 12px; border-bottom:1px solid var(--line); text-align:right; font-variant-numeric:tabular-nums; }
.state-table th:first-child,.state-table td:first-child,.state-table th:nth-child(2),.state-table td:nth-child(2) { text-align:left; }
.state-table thead { background:#edf6f6; }
.chart-source { margin:8px 0 0; color:var(--muted); font-size:.9rem; }
footer { border-top:1px solid var(--line); padding:24px 0; color:var(--muted); }
@media (max-width:620px) { main { padding-top:24px; } .card { padding:18px; } .chart-heading { display:block; } .chart-heading button { margin-top:12px; } }