@font-face { font-family: 'Clash Display'; src: url('/fonts/ClashDisplay-Variable.woff2') format('woff2'); font-weight: 200 700; font-display: swap; }
@font-face { font-family: 'Figtree'; src: url('/fonts/figtree.woff2') format('woff2'); font-weight: 300 900; font-display: swap; }

:root {
  --bg: #0c0d0e; --bg-raised: #141618; --bg-card: #17191c;
  --line: #26292d; --line-strong: #383c42;
  --text: #e9f4f5; --text-muted: #9aa5ae;
  --accent: #bfff00; --accent-2: #5ee6c8; --accent-ink: #0c0d0e;
  --warn: #ffb547; --bad: #ff6b6b;
  --gradient: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 100%);
  --font-display: 'Clash Display', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Figtree', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, 'Cascadia Mono', 'SF Mono', Consolas, monospace;
  --container: 1100px; --gutter: clamp(1rem, 4vw, 2rem); --radius: 14px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-body); font-size: 1.0625rem; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { display: block; max-width: 100%; height: auto; }
h1, h3, h4 { font-family: var(--font-display); font-weight: 500; line-height: 1.1; letter-spacing: -0.01em; margin: 0 0 .6em; text-wrap: balance; }
h1 { font-size: clamp(2.3rem, 5.5vw, 4.2rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p { margin: 0 0 1em; text-wrap: pretty; }
a { color: inherit; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
code { font-family: var(--font-mono); }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.muted { color: var(--text-muted); }
.small { font-size: .875rem; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.eyebrow { display: inline-flex; align-items: center; gap: .6rem; font-size: .8rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); margin-bottom: 1.25rem; }
.eyebrow::before { content: ''; width: 1.5rem; height: 2px; background: var(--accent); }
.accent-text { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: var(--text-muted); max-width: 46rem; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .9rem 1.6rem; border-radius: 999px; font: 600 1rem/1 var(--font-body); text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .2s, background-color .2s, color .2s, border-color .2s; white-space: nowrap; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #d4ff4d; color: var(--accent-ink); }
.btn-ghost { border-color: var(--line-strong); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: .55rem 1rem; font-size: .875rem; }
.btn[disabled] { opacity: .5; cursor: progress; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(12,13,14,.75); backdrop-filter: saturate(140%) blur(14px); -webkit-backdrop-filter: saturate(140%) blur(14px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; gap: 1rem; height: 68px; }
.logo img { width: 132px; }
.product-tag { font: 600 .85rem var(--font-body); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-right: auto; padding-left: 1rem; border-left: 1px solid var(--line-strong); }
@media (max-width: 560px) { .product-tag .muted { display: none; } .bar .btn { display: none; } }

.hero { padding-block: clamp(2.5rem, 7vw, 5rem) 1.5rem; }
.search { display: flex; gap: .6rem; margin-top: 2rem; background: var(--bg-card); border: 1px solid var(--line-strong); border-radius: 999px; padding: .4rem; transition: border-color .2s; }
.search:focus-within { border-color: var(--accent); }
.search input { flex: 1; min-width: 0; background: transparent; border: 0; color: var(--text); font: 1.05rem var(--font-body); padding: .6rem 1rem; outline: none; }
.search input::-webkit-search-cancel-button { filter: invert(1); }
@media (max-width: 560px) { .search { flex-direction: column; border-radius: var(--radius); } .search .btn { width: 100%; } }

.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.1rem; }
.chips button, .chips .label { font: 500 .85rem var(--font-body); color: var(--text-muted); background: var(--bg-raised); border: 1px solid var(--line); border-radius: 999px; padding: .4rem .85rem; cursor: pointer; }
.chips button:hover { color: var(--accent); border-color: var(--accent); }
.chips .label { background: none; border: 0; padding-left: 0; cursor: default; }

.status { margin: 1rem 0; padding: 1rem 1.25rem; border-radius: var(--radius); background: var(--bg-card); border: 1px solid var(--line); color: var(--text-muted); display: flex; align-items: center; gap: .75rem; }
.status.error { border-color: var(--bad); color: var(--text); }
.spinner { width: 18px; height: 18px; border: 2px solid var(--line-strong); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 3s; } }

.card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.card h4 { margin-bottom: .8rem; }
.card p { color: var(--text-muted); margin: 0; font-size: 1rem; }
.grid-3 { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }
.how { padding-block: 3rem; }

.result { scroll-margin-top: 84px; display: grid; gap: 1rem; margin-bottom: 1rem; }
.cols { display: grid; gap: 1rem; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); align-items: start; }
.side { display: grid; gap: 1rem; }
@media (max-width: 860px) { .cols { grid-template-columns: 1fr; } }

.summary { border-color: var(--line-strong); background: linear-gradient(180deg, rgba(191,255,0,.05), transparent 60%), var(--bg-card); }
.badges { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .9rem; }
.badge { font: 600 .72rem var(--font-body); letter-spacing: .08em; text-transform: uppercase; padding: .3rem .6rem; border-radius: 6px; border: 1px solid var(--line-strong); color: var(--text-muted); }
.badge.high { color: var(--accent); border-color: rgba(191,255,0,.4); }
.badge.medium { color: var(--warn); border-color: rgba(255,181,71,.4); }
.badge.low { color: var(--bad); border-color: rgba(255,107,107,.4); }
.badge.src { color: var(--accent-2); border-color: rgba(94,230,200,.35); }
.code-row { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.code { font-size: clamp(1.9rem, 5vw, 2.8rem); font-weight: 600; letter-spacing: .04em; color: var(--text); }
.hs6 { font-size: .9rem; margin-top: .2rem; }
.summary .title { margin-top: 1.1rem; }
.summary .rationale { color: var(--text); opacity: .88; }
.notes { margin: 1rem 0 0; padding: 0; list-style: none; display: grid; gap: .5rem; }
.notes li { font-size: .92rem; color: var(--text-muted); padding-left: 1rem; border-left: 2px solid var(--line-strong); }

.questions { border-color: rgba(255,181,71,.45); }
.qform { display: grid; gap: 1rem; }
.q label { display: block; font-weight: 600; margin-bottom: .2rem; }
.q .help { font-size: .87rem; color: var(--text-muted); margin-bottom: .5rem; }
.q input[type=number] { width: 12rem; max-width: 100%; background: var(--bg); border: 1px solid var(--line-strong); border-radius: 8px; color: var(--text); padding: .55rem .8rem; font: 1rem var(--font-body); }
.seg { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 999px; overflow: hidden; }
.seg label { margin: 0; padding: .45rem 1rem; cursor: pointer; font-weight: 500; font-size: .92rem; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg input:checked + span { color: var(--accent-ink); }
.seg label:has(input:checked) { background: var(--accent); color: var(--accent-ink); }
.seg label:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: -2px; }

.leaves { display: grid; gap: .4rem; margin-bottom: 1.2rem; }
.leaf { display: grid; grid-template-columns: auto 1fr; gap: .75rem; align-items: start; padding: .65rem .8rem; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; }
.leaf:hover { border-color: var(--line-strong); }
.leaf:has(input:checked) { border-color: var(--accent); background: rgba(191,255,0,.05); }
.leaf input { accent-color: var(--accent); margin-top: .35rem; }
.leaf code { font-weight: 600; }
.leaf .desc { font-size: .87rem; color: var(--text-muted); display: block; }
.leaf .rec { font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-left: .4rem; }
.leaves .toggle { justify-self: start; background: none; border: 0; color: var(--accent-2); cursor: pointer; font: 500 .87rem var(--font-body); padding: .2rem 0; }

.measures { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: .75rem; margin: 0; }
.measures div { background: var(--bg-raised); border: 1px solid var(--line); border-radius: 10px; padding: .75rem .9rem; }
.measures dt { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); }
.measures dd { margin: .15rem 0 0; font: 600 1.15rem var(--font-display); }
.measures.loading { opacity: .5; }
.controls { margin-top: 1rem; }
.controls summary { cursor: pointer; font-weight: 600; font-size: .95rem; }
.controls ul { margin: .6rem 0 0; padding-left: 1.1rem; font-size: .9rem; color: var(--text-muted); }
.controls li { margin-bottom: .25rem; }

.steps ol, .alts ul, .screen ul { margin: 0; padding-left: 1.1rem; display: grid; gap: .5rem; font-size: .93rem; color: var(--text-muted); }
.alts li strong, .alts li code { color: var(--text); }
.alts button { background: none; border: 0; padding: 0; color: var(--accent-2); cursor: pointer; font: inherit; text-decoration: underline; text-underline-offset: 3px; }


.actions { display: grid; gap: 1.2rem; }
.links { display: flex; flex-wrap: wrap; gap: .5rem; }
.cta { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.cta p { margin: 0; flex: 1 1 22rem; }

.footer { padding-block: 2rem 3rem; border-top: 1px solid var(--line); }