/* script_path: ~/repos/while_ai_web/site/assets/css/site.css
   description: while-ai.org styles - dark studio look, lime accent, self-hosted fonts, no external requests. */

@font-face { font-family: 'Space Grotesk'; font-weight: 400; font-display: swap; src: url(../fonts/space-grotesk-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: 'Space Grotesk'; font-weight: 500; font-display: swap; src: url(../fonts/space-grotesk-latin-500-normal.woff2) format('woff2'); }
@font-face { font-family: 'Space Grotesk'; font-weight: 700; font-display: swap; src: url(../fonts/space-grotesk-latin-700-normal.woff2) format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 400; font-display: swap; src: url(../fonts/jetbrains-mono-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 600; font-display: swap; src: url(../fonts/jetbrains-mono-latin-600-normal.woff2) format('woff2'); }

:root {
  --bg: #0a0a0d; --surface: #111117; --surface-2: #17171f; --line: #24242e;
  --text: #ececf1; --mute: #8e8e9c; --lime: #c8ff3e; --violet: #8b5cff; --pink: #ff4fa3; --rust: #c4622d;
  --sans: 'Space Grotesk', system-ui, sans-serif; --mono: 'JetBrains Mono', ui-monospace, monospace;
  --wrap: 1200px; --gutter: clamp(16px, 4vw, 40px); --radius: 20px;
  color-scheme: dark;
}
* { box-sizing: border-box; margin: 0; }
body { background: var(--bg); color: var(--text); font: 400 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
code, .mono { font-family: var(--mono); }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.eyebrow { font: 500 .8rem/1 var(--mono); color: var(--lime); letter-spacing: .02em; }
h1, h2, h3 { letter-spacing: -.035em; line-height: 1.02; font-weight: 700; }
h2 { font-size: clamp(2.1rem, 5vw, 3.6rem); margin: 14px 0 18px; }
.lead { color: var(--mute); font-size: clamp(1.05rem, 1.6vw, 1.2rem); max-width: 60ch; }

/* nav */
.nav { position: relative; z-index: 10; border-bottom: 1px solid var(--line); background: rgb(10 10 13 / .7); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font: 700 1.3rem/1 var(--sans); letter-spacing: -.04em; }
.logo .caret { color: var(--lime); animation: blink 1.1s steps(1) infinite; }
.logo .kw, .legalbar .kw, footer .kw { color: var(--violet); }
.logo em { font-style: normal; color: var(--lime); }
@keyframes blink { 50% { opacity: 0; } }
.nav ul { display: flex; gap: 28px; list-style: none; padding: 0; font-size: .95rem; color: var(--mute); }
.nav ul a { position: relative; padding: 6px 0; transition: color .2s; }
.nav ul a:hover, .nav ul a[aria-current] { color: var(--text); }
.nav ul a[aria-current]::after { content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--lime); border-radius: 2px; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 13px 22px; border-radius: 999px; font-weight: 500; transition: transform .2s, background .2s, color .2s; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--lime); color: #0a0a0d; }
.btn-ghost { border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--mute); }
.btn-sm { padding: 9px 16px; font-size: .9rem; }

/* single-screen app: nav / panels + robot / belt */
body.app { height: 100svh; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr) auto; }
.stagewrap { position: relative; isolation: isolate; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr); gap: 24px;
  width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); min-height: 0; }
.stagewrap::before { content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(45% 50% at 72% 45%, rgb(139 92 255 / .16), transparent 70%),
              radial-gradient(30% 35% at 85% 70%, rgb(196 98 45 / .12), transparent 70%),
              linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 64px 64px,
              linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 64px 64px;
  mask-image: radial-gradient(70% 70% at 60% 45%, #000 30%, transparent 85%); opacity: .9; }
.panels { display: grid; grid-template-rows: auto minmax(0, 1fr); min-height: 0; }
.tabs { display: flex; gap: 22px; padding-top: 18px; font: 500 .82rem var(--mono); overflow-x: auto; scrollbar-width: none; }
.tabs a { position: relative; color: var(--mute); padding: 6px 0; white-space: nowrap; transition: color .2s; }
.tabs a:hover, .tabs a[aria-current] { color: var(--lime); }
.tabs a[aria-current]::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--lime); border-radius: 2px; }
.deck { position: relative; min-height: 0; }
.panel { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; overflow-y: auto;
  padding: 24px 4px; opacity: 0; visibility: hidden; transform: translateX(-28px);
  transition: opacity .45s ease, transform .45s ease, visibility 0s .45s; scrollbar-width: thin; }
.panel.active { opacity: 1; visibility: visible; transform: none; transition: opacity .45s ease, transform .45s ease; }
.panel h1 { font-size: clamp(2.6rem, 5.4vw, 5rem); margin: 18px 0 22px; }
.panel h1 em { font-style: normal; background: linear-gradient(100deg, var(--lime), #f2ff9e 45%, var(--rust)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.panel h2 { font-size: clamp(2rem, 3.8vw, 3.2rem); margin: 12px 0 14px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.stage { position: relative; height: 100%; min-height: 0; cursor: pointer; touch-action: manipulation; }
.stage canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; }
.say { position: absolute; left: 0; right: 0; bottom: 6%; text-align: center; font: 500 .9rem var(--mono); color: var(--lime); min-height: 1.4em; pointer-events: none; }
.hint { position: absolute; right: 4%; top: 6%; font: .75rem var(--mono); color: var(--mute); pointer-events: none; transition: opacity .4s; }
.titleblock { position: absolute; right: 3%; top: 5%; display: grid; font: .68rem/1.5 var(--mono); color: #e9eef4; border: 1px solid rgb(233 238 244 / .45);
  padding: 6px 10px; opacity: 0; transition: opacity .4s; pointer-events: none; }
.titleblock b { font-weight: 600; border-bottom: 1px solid rgb(233 238 244 / .3); padding-bottom: 3px; margin-bottom: 3px; }
.stage.drawing .titleblock { opacity: .9; }
.stage.drawing .hint { opacity: 0; }
.titleblock i { font-style: normal; display: none; }
.stage[data-view=exploded] .v-exploded, .stage[data-view=tree] .v-tree { display: inline; }

/* services */
.services { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 22px; }
.card { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(18px, 2.2vw, 28px); overflow: hidden; transition: border-color .3s; }
.card:hover { border-color: #3a3a48; }
.card::after { content: ''; position: absolute; width: 260px; height: 260px; right: -110px; top: -110px; border-radius: 50%; background: radial-gradient(var(--glow, rgb(200 255 62 / .14)), transparent 70%); pointer-events: none; }
.card.advise { --glow: rgb(139 92 255 / .2); }
.card h3 { font-size: clamp(1.25rem, 1.9vw, 1.6rem); margin: 12px 0 8px; }
.card p { color: var(--mute); font-size: .95rem; }
.card ul { list-style: none; padding: 0; margin-top: 16px; display: grid; gap: 9px; font-size: .93rem; }
.card li { display: flex; gap: 10px; align-items: baseline; }
.card li::before { content: '→'; font-family: var(--mono); color: var(--lime); }
.card.advise li::before { color: var(--violet); }

/* process: AI-augmented, experimental - contrast strip, then idea -> experiment -> keep the best */
.contrast { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
.contrast div { border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px; }
.contrast span { font: .74rem var(--mono); color: var(--mute); }
.contrast p { margin-top: 2px; font-size: .95rem; }
.contrast .old p { color: var(--mute); text-decoration: line-through; text-decoration-color: rgb(142 142 156 / .6); }
.contrast .new { border-color: rgb(200 255 62 / .45); background: rgb(200 255 62 / .05); }
.contrast .new span { color: var(--lime); }
.cycle { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; margin-top: 18px; }
.step { position: relative; background: var(--surface); border: 1px solid var(--line); border-top: 2px solid var(--line);
  border-radius: 14px; padding: 12px 14px; transition: border-color .4s; }
.step.on { border-top-color: var(--lime); }
.step:not(:last-child)::after { content: '→'; position: absolute; right: -18px; top: 12px; font-family: var(--mono); color: var(--mute); }
.step b { font-size: 1.05rem; letter-spacing: -.02em; }
.step.on b { color: var(--lime); }
.step p { color: var(--mute); margin-top: 4px; font-size: .86rem; line-height: 1.45; }
.again { margin-top: 10px; font: .8rem var(--mono); color: var(--violet); text-align: right; }
.gates { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.gates span { font: .74rem var(--mono); color: var(--text); border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px; white-space: nowrap; }

/* about */
.principles { display: grid; gap: 10px; margin-top: 22px; }
.principle { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px 20px; }
.principle h3 { font-size: 1.08rem; letter-spacing: -.02em; }
.principle p { color: var(--mute); margin-top: 4px; font-size: .93rem; }

/* contact */
#contact h2 { font-size: clamp(2.4rem, 5vw, 4.4rem); }
.mail { font: 500 clamp(1.05rem, 2vw, 1.4rem) var(--mono); }

/* belt footer: running capability belt + legal line */
.belt { border-top: 1px solid var(--line); background: var(--bg); min-width: 0; overflow: hidden; }
.marquee { overflow: hidden; padding: 12px 0; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee .track { display: flex; gap: 12px; width: max-content; animation: slide 40s linear infinite; }
.chip { font: .8rem var(--mono); color: var(--mute); border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; white-space: nowrap; }
.chip b { color: var(--lime); font-weight: 400; }
@keyframes slide { to { transform: translateX(-50%); } }
.legalbar { display: flex; flex-wrap: wrap; gap: 6px 16px; justify-content: space-between; align-items: center; padding-top: 6px; padding-bottom: 10px; color: var(--mute); font-size: .82rem; }
.legalbar nav, footer nav { display: flex; gap: 20px; }
.legalbar a:hover, footer a:hover { color: var(--text); }

/* legal pages (normal scrolling documents) */
footer:not(.belt) { border-top: 1px solid var(--line); padding: 28px 0; color: var(--mute); font-size: .9rem; }
footer:not(.belt) .wrap { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; }
.legal { max-width: 760px; padding-top: 60px; padding-bottom: 100px; }
.legal h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); margin-bottom: 28px; }
.legal h2 { font-size: 1.3rem; letter-spacing: -.02em; margin: 34px 0 10px; }
.legal p, .legal li { color: #c4c4cf; }
.legal ul { padding-left: 20px; }

@media (max-width: 900px) {
  .nav .wrap { height: auto; flex-wrap: wrap; padding-top: 10px; padding-bottom: 0; row-gap: 8px; }
  .nav ul { order: 3; width: 100%; gap: 22px; overflow-x: auto; padding-bottom: 8px; scrollbar-width: none; }
  .stagewrap { grid-template-columns: 1fr; grid-template-rows: 38svh minmax(0, 1fr); gap: 0; }
  .stage { order: -1; }
  .panel { justify-content: flex-start; padding-top: 12px; }
  .services { grid-template-columns: 1fr; }
  .cycle { grid-template-columns: 1fr; gap: 8px; } .step::after { display: none; }
  .titleblock { display: none; }
}
@media (min-width: 901px) {  /* compact cards and spacing: every panel fits one screen, also on short laptops */
  .nav .wrap { height: 54px; }
  .panel { padding: 10px 4px; }
  .panel h1 { font-size: clamp(2.2rem, 4.2vw, 3.6rem); margin: 10px 0 14px; }
  .panel h2 { font-size: clamp(1.6rem, 2.8vw, 2.3rem); margin: 6px 0 8px; }
  .lead { font-size: 1rem; }
  .actions { margin-top: 18px; }
  .services, .cycle, .principles { margin-top: 12px; } .contrast { margin-top: 10px; }
  .card { padding: 12px 18px; } .card h3 { margin: 6px 0 4px; } .card p { font-size: .9rem; }
  .card ul { margin-top: 8px; gap: 5px; font-size: .88rem; }
  .principles { gap: 8px; } .principle { padding: 10px 16px; }
  .marquee { padding: 8px 0; } .chip { padding: 4px 12px; }
}
@media (min-width: 901px) and (max-height: 700px) {  /* very short screens: tighten a little more */
  .panel { padding: 6px 4px; } .panel h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); } .lead { font-size: .95rem; }
  .step p, .card ul { font-size: .84rem; }
  .card ul { gap: 3px; } .card p { display: none; } .gates { margin-top: 10px; }
  .contrast div { padding: 7px 12px; } .contrast p { font-size: .88rem; } .again { margin-top: 6px; }
}
@media (max-width: 520px) { .legalbar code { display: none; } }
@media (prefers-reduced-motion: reduce) {
  .marquee .track, .logo .caret { animation: none; }
  .panel, .panel.active { transition: none; transform: none; }
}