/* Fonts: same OFL families as the UNIT/01 plugin */
@font-face { font-family: "Jost"; src: url(fonts/Jost-SemiBold.ttf) format("truetype"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Jost"; src: url(fonts/Jost-Medium.ttf) format("truetype"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Inter"; src: url(fonts/Inter-Regular.ttf) format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Inter"; src: url(fonts/Inter-SemiBold.ttf) format("truetype"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Share Tech Mono"; src: url(fonts/ShareTechMono-Regular.ttf) format("truetype"); font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url(fonts/IBMPlexMono-Regular.ttf) format("truetype"); font-display: swap; }

/* Palette: PatchAgent Source/ui/Theme.h */
:root {
  --bg: #0E0E0E; --panel: #151515; --card: #1B1B1B; --canvas: #0B0B0B; --line: #2A2A2A;
  --text: #F2F2F2; --text2: #C6C6C6; --text3: #858585;
  --yellow: #FFD400; --red: #FF1F1F; --blue: #1F6BFF; --on-yellow: #121000;
  --title: "Jost", system-ui, sans-serif;
  --body: "Inter", system-ui, sans-serif;
  --tech: "Share Tech Mono", ui-monospace, monospace;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 1160px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 17px/1.6 var(--body); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--title); font-weight: 600; line-height: 1.08; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(40px, 7vw, 84px); }
h2 { font-size: clamp(30px, 4.4vw, 48px); }
h3 { font-size: 20px; }
p { margin: 0 0 1em; color: var(--text2); }
em { font-style: normal; color: var(--yellow); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.wrap { max-width: var(--max); margin: 0 auto; padding-block: 0; padding-left: max(24px, env(safe-area-inset-left, 0px)); padding-right: max(24px, env(safe-area-inset-right, 0px)); }
.section { padding-top: 96px; }
.sep { color: var(--yellow); letter-spacing: .05em; }
.y { color: var(--yellow); }

/* Nav */
.nav { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding-block: 12px; padding-left: max(24px, env(safe-area-inset-left, 0px)); padding-right: max(24px, env(safe-area-inset-right, 0px)); background: rgba(14,14,14,.86); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo { width: 34px; height: 34px; }
.brand-name { font: 600 22px var(--title); letter-spacing: .02em; white-space: nowrap; }
.brand-name i { font-style: normal; color: var(--red); }
.nav nav { display: flex; align-items: center; gap: 24px; font: 15px var(--tech); text-transform: uppercase; letter-spacing: .08em; }
.nav nav a:not(.btn) { text-decoration: none; color: var(--text2); }
.nav nav a:not(.btn):hover { color: var(--yellow); }

/* Buttons & tags */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 24px; border: 1px solid var(--line); border-radius: 4px;
  font: 600 16px var(--body); text-decoration: none; cursor: pointer; background: var(--card); color: var(--text); transition: transform .1s, background .15s; }
.btn:hover { transform: translateY(-1px); }
.btn-yellow { background: var(--yellow); color: var(--on-yellow); border-color: var(--yellow); }
.btn-yellow:hover { background: #ffe14d; }
.btn-ghost { background: transparent; }
.btn-ghost:hover { border-color: var(--text3); }
.btn-sm { padding: 8px 14px; font-size: 14px; letter-spacing: 0; text-transform: none; font-family: var(--body); }
.play-ico { width: 0; height: 0; border-left: 10px solid currentColor; border-top: 6px solid transparent; border-bottom: 6px solid transparent; }

.tag { display: inline-block; font: 14px var(--tech); letter-spacing: .12em; text-transform: uppercase; padding: 4px 10px; }
.tag.sm { font-size: 12px; padding: 2px 8px; }
.tag-line { color: var(--yellow); padding-left: 0; }
.tag-box { border: 1px solid var(--yellow); color: var(--yellow); }
.tag-red { background: var(--red); color: #fff; }
.kicker { display: block; font: 14px var(--tech); letter-spacing: .14em; color: var(--text3); margin-bottom: 16px; }

/* Hero */
.hero { padding-top: 0; }
.hero-text { max-width: 680px; min-height: min(calc(100vh - 140px), 720px); display: flex; flex-direction: column; justify-content: center; padding-bottom: 40px; }
.hero-text .hero-tags { justify-content: flex-start; }
.hero-text .lead { margin: 0 0 32px; }
.hero-text .lead strong { color: var(--text); font-weight: 600; }
.hero-text .cta { justify-content: flex-start; }

/* Scroll-driven 3D background (bg3d.js) */
.bg3d { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 0; pointer-events: none; }
.has-bg3d main, .has-bg3d .foot { position: relative; z-index: 1; }
/* keeps the text column readable over the spheres */
.has-bg3d body::before { content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: linear-gradient(90deg, rgba(14,14,14,.8) 0, rgba(14,14,14,.55) 40%, rgba(14,14,14,0) 62%); }
@media (max-width: 860px) { .has-bg3d body::before { background: rgba(14,14,14,.55); } }
.has-bg3d .demo, .has-bg3d .principles article, .has-bg3d .product2, .has-bg3d .waitlist {
  background: rgba(21,21,21,.72); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); }
.has-bg3d .sec-head, .has-bg3d .hero-text { text-shadow: 0 2px 24px rgba(14,14,14,.9); }
.hero-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 28px; }
.hero h1 { font-size: clamp(40px, 5.6vw, 70px); }
.hero h1 .hl { color: var(--yellow); }
.lead { font-size: clamp(18px, 2vw, 21px); max-width: 760px; margin: 0 auto 32px; }
.cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.formats { margin-top: 24px; font: 14px var(--tech); letter-spacing: .1em; color: var(--text3); text-transform: uppercase; }
.shot { margin: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--canvas); }
.hero-shot { margin-top: 40px; box-shadow: 0 40px 120px -30px rgba(255,212,0,.18), 0 0 0 1px #000; }

.sec-head { max-width: 720px; margin-bottom: 36px; }

/* Manifesto */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.principles article { padding: 28px 24px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.principles p { margin: 0; font-size: 16px; }
.num { display: inline-grid; place-items: center; width: 34px; height: 34px; margin-bottom: 18px; font: 16px var(--tech); color: var(--bg); }
.num.y { background: var(--yellow); } .num.r { background: var(--red); color: #fff; } .num.b { background: var(--blue); color: #fff; }

/* Demo */
.demo { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 24px; }
.demo-label { font: 16px var(--tech); letter-spacing: .1em; }
.demo-field { margin: 12px 0 20px; min-height: 58px; padding: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 4px;
  font-size: 19px; color: var(--text); }
.caret { display: inline-block; width: 2px; height: 1.1em; background: var(--yellow); vertical-align: -3px; margin-left: 2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 8px 14px; background: var(--card); border: 1px solid var(--line); border-radius: 4px; color: var(--text2);
  font: 15px var(--body); cursor: pointer; transition: border-color .15s, color .15s; }
.chip:hover { border-color: var(--text3); color: var(--text); }
.chip.on { border-color: var(--yellow); color: var(--yellow); }
.result { display: flex; gap: 20px; align-items: center; margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--line); }
.result-body { flex: 1; min-width: 0; }
.result-top { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.result-top strong { font: 600 24px var(--title); }
.result p { margin: 0 0 10px; border-left: 2px solid var(--yellow); padding-left: 12px; }
#scope { width: 100%; height: 56px; display: block; }

.big-play { flex: none; width: 64px; height: 64px; border-radius: 50%; border: 0; background: var(--red); cursor: pointer;
  display: grid; place-items: center; box-shadow: inset 0 -4px 0 rgba(0,0,0,.25); }
.big-play span { width: 0; height: 0; border-left: 18px solid #fff; border-top: 11px solid transparent; border-bottom: 11px solid transparent; margin-left: 5px; }
.big-play.playing span { width: 16px; height: 20px; border: 0; margin: 0; background: linear-gradient(90deg, #fff 0 35%, transparent 35% 65%, #fff 65%); }

/* Directions under the result (segmented control) */
.dirs { display: flex; flex-wrap: wrap; gap: 0; margin: 4px 0 12px; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; width: fit-content; max-width: 100%; }
.dirs button { padding: 10px 16px; background: var(--card); color: var(--text2); border: 0; border-right: 1px solid var(--line);
  font: 14px var(--tech); letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }
.dirs button:last-child { border-right: 0; }
.dirs button.on { background: var(--yellow); color: var(--on-yellow); }

/* How it works: explanation panel + graph */
.duo { display: grid; grid-template-columns: 372fr 840fr; gap: 16px; align-items: start; }

/* Psy-Bass */
.product2 { max-width: 760px; padding: 32px 40px; background: var(--panel);
  border: 1px solid var(--line); border-left: 4px solid var(--red); border-radius: 8px; }
.product2 .hero-tags { justify-content: flex-start; margin-bottom: 16px; }
.product2 p { margin: 0; }
/* Waitlist */
.waitlist { text-align: center; padding: 64px 24px; border: 1px dashed var(--yellow); border-radius: 8px; }
.waitlist p { max-width: 560px; margin-left: auto; margin-right: auto; }
.wait-form { display: flex; gap: 10px; max-width: 520px; margin: 24px auto 0; }
.wait-form input { flex: 1; min-width: 0; padding: 14px 16px; border-radius: 4px; border: 1px solid var(--line); background: var(--card);
  color: var(--text); font: 16px var(--body); }
.wait-form input:focus { outline: 2px solid var(--yellow); outline-offset: 1px; }
.wait-msg { margin-top: 14px; font: 15px var(--tech); color: var(--yellow); min-height: 1.4em; }

/* FAQ */
.faq { max-width: 820px; }
.faq details { border-top: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: "+"; font-family: var(--tech); color: var(--yellow); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 12px 0 0; }

.foot { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; margin-top: 120px; padding-top: 32px; padding-bottom: 48px;
  border-top: 1px solid var(--line); }
.foot p { margin: 0; font: 14px var(--tech); color: var(--text3); letter-spacing: .06em; }
.social { display: flex; gap: 20px; font: 14px var(--tech); text-transform: uppercase; letter-spacing: .08em; }
.social a { color: var(--text2); text-decoration: none; }
.social a:hover { color: var(--yellow); }

/* Legal page */
.legal { max-width: 760px; }
.legal h1 { font-size: clamp(34px, 5vw, 52px); }
.legal h2 { font-size: 24px; margin-top: 48px; }
.legal dl { display: grid; grid-template-columns: max-content 1fr; gap: 8px 24px; margin: 0; }
.legal dt { font: 14px var(--tech); letter-spacing: .08em; text-transform: uppercase; color: var(--text3); padding-top: 3px; }
.legal dd { margin: 0; color: var(--text2); }
.pending { color: var(--yellow); font-family: var(--mono); }
@media (max-width: 600px) { .legal dl { grid-template-columns: 1fr; gap: 2px; } .legal dd { margin-bottom: 12px; } }

:focus-visible { outline: 2px solid var(--yellow); outline-offset: 2px; }


@media (max-width: 860px) {
  .principles, .duo { grid-template-columns: 1fr; }
  .duo .shot:first-child { max-width: 372px; }
  .product2 { padding: 24px; }
}
@media (max-width: 600px) {
  .wrap { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
  .section { padding-top: 72px; }
  .nav { padding-block: 10px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
  .nav nav a:not(.btn) { display: none; }
  .nav .brand-name { font-size: 18px; }
  .nav .btn { padding: 10px 14px; white-space: nowrap; }
  .wait-form { flex-direction: column; }
  .result { flex-direction: column; align-items: flex-start; }
  .demo { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .caret { animation: none; } }
.result[hidden] { display: none; }