/* =========================================================================
   H4T — Design tokens
   Dark charcoal + one warm gold signal accent.
   Type: Space Grotesk (display) / IBM Plex Sans (body) / IBM Plex Mono (mono).
   ========================================================================= */
@font-face {
  font-family: 'Hackout';
  src: url('assets/fonts/hHackout.ttf') format('truetype');
  font-weight: 400 700;
  font-display: swap;
}

:root {
  --bg: oklch(15% 0.015 250);
  --bg-deep: oklch(12.5% 0.014 250);
  --bg-elevated: oklch(19% 0.017 250);
  --bg-elevated-2: oklch(23% 0.019 250);
  --border: oklch(29% 0.02 250);
  --border-strong: oklch(38% 0.022 250);
  --text: oklch(95% 0.006 250);
  --text-muted: oklch(72% 0.02 252);
  --text-faint: oklch(55% 0.02 252);
  --accent: oklch(76% 0.135 60);
  --accent-strong: oklch(68% 0.155 55);
  --accent-soft: oklch(76% 0.135 60 / 0.12);
  --accent-glow: oklch(76% 0.135 60 / 0.35);
  --accent-text-on: oklch(17% 0.02 250);
  --success: oklch(72% 0.13 165);
  --danger: oklch(66% 0.15 25);
  --warn: oklch(75% 0.13 85);

  --font-display: 'Hackout', 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', monospace;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --wrap: 1180px;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; }
h2 { font-size: clamp(1.9rem, 4.4vw, 3rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
input, button { font: inherit; color: inherit; }
code { font-family: var(--font-mono); font-size: 0.9em; background: var(--bg-elevated-2); border: 1px solid var(--border); padding: 0.05em 0.4em; border-radius: 6px; color: var(--accent); }
::selection { background: var(--accent); color: var(--accent-text-on); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }
.mono { font-family: var(--font-mono); }
.accent { color: var(--accent); }
.ok { color: var(--success); }

.skip { position: absolute; left: -9999px; top: 0; background: var(--accent); color: var(--accent-text-on); padding: 12px 16px; z-index: 300; font-family: var(--font-mono); font-size: 0.85rem; }
.skip:focus { left: 12px; top: 12px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 18px;
}
.eyebrow span { color: var(--text-faint); }
.lead { color: var(--text-muted); font-size: clamp(1rem, 1.5vw, 1.12rem); max-width: 56ch; }

.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-faint); display: inline-block; }
.dot--live { background: var(--success); box-shadow: 0 0 0 0 oklch(72% 0.13 165 / 0.6); animation: pulse 2s infinite; }

/* ---------- buttons ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 0.95rem 1.5rem; border-radius: var(--radius-sm);
  font-family: var(--font-display); font-weight: 600; font-size: 0.98rem;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .35s var(--ease-out), box-shadow .3s ease, background .2s ease, border-color .2s ease;
  will-change: transform;
}
.btn--primary { background: var(--accent); color: var(--accent-text-on); box-shadow: 0 0 0 0 var(--accent-glow), 0 8px 24px -10px var(--accent-glow); overflow: hidden; }
.btn--primary::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(105deg, transparent 30%, oklch(100% 0 0 / 0.45) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform .7s var(--ease-out);
}
.btn--primary:hover { box-shadow: 0 0 0 4px var(--accent-soft), 0 14px 34px -10px var(--accent-glow); }
.btn--primary:hover::after { transform: translateX(120%); }
.btn--ghost { background: oklch(100% 0 0 / 0.02); border-color: var(--border-strong); color: var(--text); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--sm { padding: 0.65rem 1.1rem; font-size: 0.9rem; }
.btn--lg { padding: 1.1rem 1.9rem; font-size: 1.05rem; }

/* ---------- scroll xp bar ---------- */
.xpbar { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 200; pointer-events: none; }
.xpbar span { display: block; height: 100%; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--accent-strong), var(--accent)); box-shadow: 0 0 12px var(--accent-glow); }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled { background: oklch(15% 0.015 250 / 0.8); backdrop-filter: saturate(140%) blur(14px); -webkit-backdrop-filter: saturate(140%) blur(14px); border-bottom-color: var(--border); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.nav__links { display: flex; gap: 32px; font-size: 0.92rem; color: var(--text-muted); }
.nav__links a { position: relative; transition: color .2s; }
.nav__links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease-out); }
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { transform: scaleX(1); }
.logo { font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; letter-spacing: 0.02em; }
.logo__cursor { color: var(--accent); animation: blink 1.1s step-end infinite; }

/* ---------- hero ---------- */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; padding-block: 120px 80px; overflow: hidden; isolation: isolate; }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.hero__glow {
  position: absolute; z-index: -1; inset: 0; pointer-events: none;
  background:
    radial-gradient(600px circle at var(--gx, 70%) var(--gy, 40%), oklch(76% 0.135 60 / 0.10), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, oklch(60% 0.08 250 / 0.12), transparent 70%);
}
.hero::after { /* fade into page */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 160px; z-index: -1;
  background: linear-gradient(to bottom, transparent, var(--bg));
}
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.hero__title { font-size: clamp(2.5rem, 5.2vw, 3.9rem); line-height: 1.02; letter-spacing: -0.035em; margin-bottom: 24px; }
.hero__title .scramble { display: inline-block; position: relative; white-space: nowrap; }
.hero__title .scramble::after { /* underline sweep */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0.02em; height: 0.08em; background: var(--accent); opacity: .35;
  transform: scaleX(0); transform-origin: left; animation: sweep 1.2s .9s var(--ease-out) forwards;
}
.hero__sub { color: var(--text-muted); font-size: clamp(1.02rem, 1.5vw, 1.18rem); max-width: 50ch; margin-bottom: 32px; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
.hero__meta { display: flex; flex-wrap: wrap; gap: 10px 24px; font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted); }
.hero__meta li { display: inline-flex; align-items: center; gap: 8px; }

.hero__term { position: relative; perspective: 1200px; }
.hero__scroll { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); width: 24px; height: 38px; border: 1.5px solid var(--border-strong); border-radius: 14px; }
.hero__scroll span { position: absolute; left: 50%; top: 8px; width: 3px; height: 7px; margin-left: -1.5px; border-radius: 2px; background: var(--accent); animation: scrollcue 1.8s infinite; }

.float-chip {
  position: absolute; z-index: 2; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em;
  padding: 8px 12px; border-radius: 999px; background: oklch(19% 0.017 250 / 0.85); border: 1px solid var(--border-strong);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); box-shadow: 0 12px 30px -12px oklch(0% 0 0 / .6);
  animation: float 6s ease-in-out infinite;
}
.float-chip--a { top: -18px; right: 8%; }
.float-chip--b { bottom: -16px; left: -12px; animation-delay: -3s; }

/* ---------- terminal ---------- */
.term {
  position: relative; background: oklch(13.5% 0.014 250 / 0.92); border: 1px solid var(--border-strong); border-radius: var(--radius-md);
  overflow: hidden; font-family: var(--font-mono); font-size: 0.82rem;
  box-shadow: 0 40px 80px -30px oklch(0% 0 0 / .8), 0 0 0 1px oklch(100% 0 0 / 0.02) inset, 0 0 60px -20px var(--accent-soft);
  transform-style: preserve-3d; transition: transform .5s var(--ease-out);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.term::before { /* scanlines */
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 2; opacity: .5;
  background: repeating-linear-gradient(to bottom, transparent 0 2px, oklch(0% 0 0 / 0.12) 2px 3px);
}
.term__bar { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--bg-elevated); }
.term__dots { display: inline-flex; gap: 7px; }
.term__dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--danger); }
.term__dots i:nth-child(2) { background: var(--warn); }
.term__dots i:nth-child(3) { background: var(--success); }
.term__title { color: var(--text-faint); font-size: 0.75rem; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.term__badge { font-size: 0.65rem; letter-spacing: 0.12em; color: var(--danger); border: 1px solid oklch(66% 0.15 25 / 0.5); padding: 2px 8px; border-radius: 999px; display: inline-flex; gap: 6px; align-items: center; }
.term__badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; animation: blink 1.2s step-end infinite; }
.term__badge--muted { color: var(--text-muted); border-color: var(--border-strong); }
.term__badge--muted::before { display: none; }
.term__badge--won { color: var(--success); border-color: oklch(72% 0.13 165 / .5); }
.term__body { padding: 20px; height: 300px; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; gap: 3px; }
.term__body p { white-space: pre-wrap; word-break: break-word; color: var(--text-muted); animation: lineIn .25s ease-out; }
.term__body .l-cmd { color: var(--text); }
.term__body .l-cmd::before { content: "$ "; color: var(--accent); }
.term__body .l-ok { color: var(--success); }
.term__body .l-warn { color: var(--warn); }
.term__body .l-acc { color: var(--accent); }
.term__body .l-dim { color: var(--text-faint); }
.term__body .l-xp { color: var(--accent); font-weight: 600; }
.term__body .caret, .caret { display: inline-block; width: 0.55em; height: 1.05em; background: var(--accent); vertical-align: text-bottom; margin-left: 2px; animation: blink 1s step-end infinite; }

.term__hud { display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: center; padding: 14px 20px; border-top: 1px solid var(--border); background: var(--bg-elevated); }
.hud__label { font-size: 0.65rem; letter-spacing: 0.12em; color: var(--text-faint); }
.hud__rank { display: flex; flex-direction: column; }
.hud__value { color: var(--accent); font-weight: 600; font-size: 0.85rem; transition: color .3s; }
.hud__value.is-up { animation: rankup .8s var(--ease-out); }
.hud__xp { display: grid; gap: 6px; justify-items: end; }
.hud__xpbar { width: 100%; height: 6px; border-radius: 3px; background: var(--bg-deep); overflow: hidden; border: 1px solid var(--border); }
.hud__xpbar span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent-strong), var(--accent)); box-shadow: 0 0 10px var(--accent-glow); transition: width .6s var(--ease-out); }

/* ---------- marquee ---------- */
.marquee { border-block: 1px solid var(--border); background: var(--bg-deep); overflow: hidden; padding-block: 18px; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee__track { display: flex; width: max-content; gap: 48px; animation: marquee 38s linear infinite; font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.14em; color: var(--text-faint); }
.marquee__track span { display: inline-flex; align-items: center; gap: 48px; }
.marquee__track span::after { content: "◆"; color: var(--accent); font-size: 0.6rem; }
.marquee:hover .marquee__track { animation-play-state: paused; }

/* ---------- sections ---------- */
.section { padding-block: clamp(80px, 11vw, 140px); position: relative; }
.section__head { margin-bottom: 56px; }
.section__head h2 { margin-bottom: 16px; }
.section__head--center { text-align: center; }
.section__head--center .lead { margin-inline: auto; }

/* spotlight hover (cursor-tracked glow) */
.spot { position: relative; isolation: isolate; }
.spot::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: -1; pointer-events: none; opacity: 0; transition: opacity .4s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), oklch(76% 0.135 60 / 0.10), transparent 60%);
}
.spot::after { /* border glow */
  content: ""; position: absolute; inset: -1px; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .4s;
  padding: 1px; background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 50%), var(--accent), transparent 70%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude;
}
.spot:hover::before, .spot:hover::after { opacity: 1; }

/* ---------- loop cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: linear-gradient(180deg, var(--bg-elevated), oklch(17% 0.016 250));
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px;
  display: flex; flex-direction: column; gap: 14px; min-height: 320px;
  transition: transform .5s var(--ease-out), border-color .3s;
}
.card:hover { transform: translateY(-6px); }
.card__num { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-faint); }
.card__icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--accent-soft); border: 1px solid oklch(76% 0.135 60 / 0.3); margin-block: 6px 8px; }
.card__icon svg { width: 24px; height: 24px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 80; stroke-dashoffset: 80; transition: stroke-dashoffset 1.4s var(--ease-out); }
.card.is-in .card__icon svg { stroke-dashoffset: 0; }
.card p { color: var(--text-muted); font-size: 0.95rem; flex: 1; }
.card__tag { align-self: flex-start; font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); background: var(--accent-soft); border: 1px solid oklch(76% 0.135 60 / 0.25); padding: 4px 10px; border-radius: 999px; }

/* ---------- showcase ---------- */
.showcase { background: radial-gradient(1000px 500px at 50% 40%, oklch(76% 0.135 60 / 0.06), transparent 70%); }
.showcase__tabs { position: relative; display: flex; justify-content: center; gap: 4px; width: max-content; max-width: 100%; margin: 0 auto 40px; padding: 5px; border-radius: 999px; background: var(--bg-elevated); border: 1px solid var(--border); overflow-x: auto; scrollbar-width: none; }
.showcase__tabs::-webkit-scrollbar { display: none; }
.showcase__tabs button { position: relative; z-index: 1; background: none; border: 0; cursor: pointer; padding: 9px 18px; border-radius: 999px; font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted); white-space: nowrap; transition: color .25s; }
.showcase__tabs button.is-active { color: var(--accent-text-on); }
.showcase__tabs button:not(.is-active):hover { color: var(--text); }
.showcase__indicator { position: absolute; z-index: 0; top: 5px; bottom: 5px; left: 0; width: 0; border-radius: 999px; background: var(--accent); transition: transform .5s var(--ease-out), width .5s var(--ease-out); box-shadow: 0 4px 18px -4px var(--accent-glow); }

.showcase__stage { perspective: 1600px; max-width: 1040px; margin-inline: auto; }
.browser { border-radius: var(--radius-lg); border: 1px solid var(--border-strong); background: var(--bg-elevated); overflow: hidden; box-shadow: 0 60px 120px -40px oklch(0% 0 0 / .85), 0 0 120px -40px var(--accent-soft); transform-style: preserve-3d; transition: transform .6s var(--ease-out); }
.browser__bar { display: flex; align-items: center; gap: 16px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.browser__url { flex: 1; max-width: 420px; margin-inline: auto; text-align: center; font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-faint); background: var(--bg-deep); border: 1px solid var(--border); padding: 5px 14px; border-radius: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.browser__url .ok { font-size: 0.55rem; vertical-align: 2px; margin-right: 4px; }
.browser__screen { position: relative; aspect-ratio: 16 / 10; background: var(--bg-deep); overflow: hidden; }
.shot { position: absolute; inset: 0; margin: 0; opacity: 0; transform: scale(1.03); filter: blur(6px); transition: opacity .6s ease, transform .9s var(--ease-out), filter .6s ease; }
.shot.is-active { opacity: 1; transform: none; filter: none; }
.shot img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; }
.browser__scan { position: absolute; left: 0; right: 0; top: 0; height: 30%; pointer-events: none; background: linear-gradient(to bottom, transparent, oklch(76% 0.135 60 / 0.06), transparent); transform: translateY(-100%); }
.browser__scan.is-run { animation: scan 1s var(--ease-out); }
.showcase__controls { display: flex; align-items: center; gap: 12px; max-width: 640px; margin: 28px auto 0; }
.showcase__nav {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; cursor: pointer;
  background: var(--bg-elevated); border: 1px solid var(--border-strong); color: var(--text-muted); font-size: 0.85rem;
  transition: border-color .2s, color .2s, transform .3s var(--ease-out);
}
.showcase__nav:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.showcase__count { flex-shrink: 0; font-size: 0.8rem; color: var(--text-muted); min-width: 5.5ch; text-align: center; }
.showcase__progress { flex: 1; height: 2px; background: var(--border); border-radius: 2px; overflow: hidden; }
.showcase__progress span { display: block; height: 100%; width: 100%; background: var(--accent); transform-origin: left; transform: scaleX(0); box-shadow: 0 0 10px var(--accent-glow); }
.showcase__notes { text-align: center; margin: 32px auto 0; max-width: 640px; min-height: 7.5em; transition: opacity .25s; }
.showcase__step { font-size: 0.72rem; letter-spacing: 0.12em; color: var(--accent); margin-bottom: 8px; }
.showcase__notes h3 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); margin-bottom: 8px; }
.showcase__notes p:last-child { color: var(--text-muted); }

.filmstrip {
  display: flex; gap: 10px; overflow-x: auto; max-width: 1040px; margin: 28px auto 0; padding: 6px 4px 10px;
  scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent;
  mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
}
.filmstrip button {
  position: relative; flex: 0 0 120px; aspect-ratio: 16 / 10; padding: 0; border-radius: 10px; overflow: hidden; cursor: pointer;
  background: var(--bg-deep); border: 1px solid var(--border); opacity: .45; filter: saturate(.6);
  transition: opacity .3s, filter .3s, border-color .3s, transform .4s var(--ease-out), box-shadow .3s;
}
.filmstrip button img { width: 100%; height: 100%; object-fit: cover; display: block; }
.filmstrip button span { position: absolute; left: 6px; bottom: 5px; font-family: var(--font-mono); font-size: 0.62rem; color: var(--text); background: oklch(12% 0.014 250 / .8); padding: 1px 5px; border-radius: 4px; }
.filmstrip button:hover { opacity: .85; filter: none; transform: translateY(-2px); }
.filmstrip button.is-active { opacity: 1; filter: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* ---------- ranks ---------- */
.ranks { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.ranks__copy h2 { margin-bottom: 16px; }
.rank-detail { margin-top: 36px; padding: 24px; border-radius: var(--radius-md); background: var(--bg-elevated); border: 1px solid var(--border); border-left: 3px solid var(--accent); }
.rank-detail__tier { font-size: 0.75rem; color: var(--text-faint); letter-spacing: 0.08em; margin-bottom: 8px; }
.rank-detail h3 { font-size: 1.4rem; margin-bottom: 8px; }
.rank-detail p:last-child { color: var(--text-muted); font-size: 0.95rem; }
.rank-detail.is-swap { animation: swapIn .45s var(--ease-out); }

.ladder { position: relative; display: flex; flex-direction: column-reverse; gap: 10px; padding-left: 36px; }
.ladder::before { content: ""; position: absolute; left: 13px; top: 18px; bottom: 18px; width: 2px; background: var(--border); }
.ladder__fill { position: absolute; left: 13px; bottom: 18px; width: 2px; height: 0; background: linear-gradient(to top, var(--accent-strong), var(--accent)); box-shadow: 0 0 12px var(--accent-glow); transition: height 1.6s var(--ease-out); }
.rung { position: relative; }
.rung button {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; text-align: left;
  padding: 14px 18px; border-radius: var(--radius-sm); background: var(--bg-elevated); border: 1px solid var(--border); cursor: pointer;
  transition: transform .4s var(--ease-out), border-color .25s, background .25s;
}
.rung button:hover { transform: translateX(6px); border-color: var(--border-strong); }
.rung__node { position: absolute; left: -30px; top: 50%; width: 14px; height: 14px; margin-top: -7px; border-radius: 50%; background: var(--bg); border: 2px solid var(--border-strong); transition: background .3s, border-color .3s, box-shadow .3s; }
.rung.is-lit .rung__node { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.rung__name { font-family: var(--font-display); font-weight: 600; }
.rung__xp { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-faint); }
.rung.is-active button { border-color: var(--accent); background: linear-gradient(90deg, var(--accent-soft), var(--bg-elevated)); transform: translateX(6px); }
.rung.is-active .rung__xp { color: var(--accent); }
.rung__lvl { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-faint); margin-right: 10px; }

/* ---------- play ---------- */
.play { background: var(--bg-deep); border-block: 1px solid var(--border); }
.play__grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: center; }
.play h2 { margin-bottom: 16px; }
.play__hints { margin-top: 28px; display: grid; gap: 12px; }
.play__hints li { display: flex; gap: 14px; align-items: center; color: var(--text-muted); }
.term--play { font-size: 0.85rem; }
.term__body--play { height: 340px; overflow-y: auto; justify-content: flex-start; scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
.term__body--play > :first-child { margin-top: auto; }
.term__input { display: flex; gap: 10px; align-items: center; padding: 14px 20px; border-top: 1px solid var(--border); background: var(--bg-elevated); position: relative; z-index: 3; }
.term__input label { flex-shrink: 0; font-size: 0.82rem; }
.term__input input { flex: 1; min-width: 0; background: transparent; border: 0; outline: none; font-family: var(--font-mono); font-size: 0.85rem; color: var(--text); caret-color: var(--accent); }
.term__input input::placeholder { color: var(--text-faint); }
.term--play.is-shake { animation: shake .4s; }
.term--play.is-won { border-color: var(--success); box-shadow: 0 40px 80px -30px oklch(0% 0 0 / .8), 0 0 60px -10px oklch(72% 0.13 165 / .35); }

/* ---------- signup ---------- */
.signup__card {
  border-radius: 32px; padding: clamp(28px, 5vw, 64px);
  background:
    radial-gradient(700px 400px at 0% 0%, oklch(76% 0.135 60 / 0.10), transparent 60%),
    linear-gradient(180deg, var(--bg-elevated), oklch(16.5% 0.016 250));
  border: 1px solid var(--border-strong);
  overflow: hidden;
}
.signup__card > * { position: relative; }
.signup__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.signup__copy h2 { margin-bottom: 16px; }
.perks { margin-top: 32px; display: grid; gap: 18px; }
.perks li { display: flex; gap: 14px; align-items: flex-start; }
.perks__icon { color: var(--accent); font-size: 0.8rem; margin-top: 4px; }
.perks strong { display: block; font-family: var(--font-display); font-weight: 600; }
.perks span:not(.perks__icon) { color: var(--text-muted); font-size: 0.92rem; }

.form-shell { background: var(--bg); border: 1px solid var(--border-strong); border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 40px 80px -40px oklch(0% 0 0 / .8); }
.form-shell__bar { padding: 14px 22px; border-bottom: 1px solid var(--border); font-size: 0.8rem; color: var(--text-muted); background: var(--bg-elevated); }
.signup__fine { margin-top: 14px; text-align: center; font-size: 0.8rem; color: var(--text-faint); }

/* waitlist form */
.wl-form { padding: 28px; display: grid; gap: 18px; }
.wl-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.wl-field { display: grid; gap: 8px; min-width: 0; }
.wl-field label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); transition: color .2s; }
.wl-optional { color: var(--text-faint); text-transform: none; letter-spacing: 0; margin-left: 4px; }
.wl-field input {
  width: 100%; min-width: 0; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 0.85rem 1rem; font-family: var(--font-body); font-size: 1rem; color: var(--text); caret-color: var(--accent); outline: none;
  transition: border-color .2s, box-shadow .25s, background .2s;
}
.wl-field input::placeholder { color: var(--text-faint); opacity: .7; }
.wl-field input:hover { border-color: var(--border-strong); }
.wl-field input:focus { border-color: var(--accent); background: var(--bg-elevated-2); box-shadow: 0 0 0 4px var(--accent-soft); }
.wl-field:focus-within label { color: var(--accent); }
.wl-field input:-webkit-autofill { -webkit-text-fill-color: var(--text); -webkit-box-shadow: 0 0 0 100px var(--bg-elevated-2) inset; caret-color: var(--accent); }
.wl-field.is-invalid input { border-color: var(--danger); box-shadow: 0 0 0 4px oklch(66% 0.15 25 / .15); }
.wl-field.is-invalid label { color: var(--danger); }
.wl-msg { font-family: var(--font-mono); font-size: 0.72rem; color: var(--danger); min-height: 0; }
.wl-msg:empty { display: none; }
.wl-error { font-size: 0.88rem; color: var(--danger); background: oklch(66% 0.15 25 / .08); border: 1px solid oklch(66% 0.15 25 / .35); border-radius: var(--radius-sm); padding: 10px 14px; }
.wl-error[hidden] { display: none; }
.wl-submit { width: 100%; margin-top: 4px; padding-block: 1.05rem; font-size: 1.02rem; }
.wl-submit:disabled { cursor: progress; opacity: .8; }
.wl-form.is-sending .wl-submit::before {
  content: ""; width: 14px; height: 14px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin .7s linear infinite;
}

.form-success { padding: 44px 28px; text-align: center; display: grid; justify-items: center; gap: 12px; animation: swapIn .5s var(--ease-out); }
.form-success[hidden] { display: none; }
.form-success__badge { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; font-size: 1.6rem; color: var(--bg); background: var(--success); box-shadow: 0 0 0 8px oklch(72% 0.13 165 / .15); animation: pop .6s var(--ease-out); }
.form-success h3 { font-size: 1.35rem; }
.form-success p { color: var(--text-muted); }

/* ---------- faq ---------- */
.faq { max-width: 860px; }
.faq__list { border-top: 1px solid var(--border); }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 22px; font-family: var(--font-display); font-weight: 600; font-size: 1.08rem; transition: color .2s; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-mono); font-weight: 400; font-size: 1.3rem; color: var(--accent); transition: transform .35s var(--ease-out); flex-shrink: 0; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary:hover { color: var(--accent); }
.faq details p { color: var(--text-muted); padding-bottom: 22px; max-width: 68ch; animation: swapIn .4s var(--ease-out); }

/* ---------- final ---------- */
.final { padding-block: clamp(90px, 12vw, 150px); text-align: center; position: relative; overflow: hidden; border-top: 1px solid var(--border);
  background: radial-gradient(700px 360px at 50% 100%, oklch(76% 0.135 60 / 0.12), transparent 70%), var(--bg-deep); }
.final__inner { display: grid; justify-items: center; gap: 24px; }
.final h2 { font-size: clamp(2.2rem, 5.6vw, 4rem); letter-spacing: -0.035em; max-width: 16ch; }
.final__prompt { color: var(--text-muted); font-size: 0.9rem; min-height: 1.4em; }

.footer { border-top: 1px solid var(--border); padding-block: 32px; }
.footer__inner { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; font-size: 0.85rem; color: var(--text-faint); }

/* ---------- toast + confetti ---------- */
.toast {
  position: fixed; left: 50%; bottom: 28px; z-index: 400; transform: translate(-50%, calc(100% + 60px)); opacity: 0;
  font-family: var(--font-mono); font-size: 0.85rem; padding: 12px 18px; border-radius: 999px;
  background: var(--bg-elevated-2); border: 1px solid var(--accent); color: var(--text);
  box-shadow: 0 20px 40px -10px oklch(0% 0 0 / .7), 0 0 30px -6px var(--accent-glow);
  transition: transform .5s var(--ease-out), opacity .3s; pointer-events: none; white-space: nowrap;
}
.toast.is-show { transform: translate(-50%, 0); opacity: 1; }
.confetti { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 350; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); transition-delay: var(--d, 0s); }
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- keyframes ---------- */
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 oklch(72% 0.13 165 / .6); } 70% { box-shadow: 0 0 0 8px oklch(72% 0.13 165 / 0); } 100% { box-shadow: 0 0 0 0 oklch(72% 0.13 165 / 0); } }
@keyframes sweep { to { transform: scaleX(1); } }
@keyframes scrollcue { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(12px); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes lineIn { from { opacity: 0; transform: translateX(-6px); } to { opacity: 1; transform: none; } }
@keyframes rankup { 0% { transform: scale(1); text-shadow: none; } 40% { transform: scale(1.12); text-shadow: 0 0 16px var(--accent); } 100% { transform: scale(1); } }
@keyframes scan { from { transform: translateY(-100%); } to { transform: translateY(400%); } }
@keyframes swapIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes shake { 0%, 100% { transform: translateX(0); } 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pop { 0% { transform: scale(0); } 60% { transform: scale(1.15); } 100% { transform: scale(1); } }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero__grid, .ranks, .play__grid, .signup__grid { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .hero { padding-top: 110px; }
  .hero__term { max-width: 560px; }
  .cards { grid-template-columns: 1fr; }
  .card { min-height: 0; }
}
@media (max-width: 720px) {
  .nav__links { display: none; }
  .wrap { padding-inline: 16px; }
  .hero__scroll { display: none; }
  .term__body { height: 240px; padding: 16px; font-size: 0.76rem; }
  .term__body--play { height: 300px; }
  .float-chip--b { left: 8px; }
  .wl-form { padding: 20px; }
  .wl-row { grid-template-columns: 1fr; }
  .browser__bar .term__dots { display: none; }
  .showcase__tabs { justify-content: flex-start; }
  .showcase__tabs button { padding: 8px 14px; font-size: 0.75rem; }
  .filmstrip button { flex-basis: 92px; }
  .showcase__controls { gap: 8px; }
  .hero__title br { display: none; }
  .eyebrow { font-size: 0.68rem; letter-spacing: 0.06em; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
}