:root {
  color-scheme: light;
  --ink: #0f1a33;
  --ink-2: #172443;
  --muted: #5b6b8d;
  --paper: #f4f8ff;
  --paper-blue: #e2eeff;
  --card: #ffffff;
  --accent: #4a8bff;
  --accent-strong: #2e63e6;
  --gold: #f4c24f;
  --good: #2f8a50;
  --warn: #c3503c;
  --line: rgba(15, 26, 51, 0.18);
  --line-soft: rgba(15, 26, 51, 0.09);
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --max: 1240px;
  --header: 72px;
  --step-1: clamp(0.75rem, 1vw, 0.9rem);
  --step-2: clamp(1rem, 1.5vw, 1.25rem);
  --step-3: clamp(1.5rem, 2.5vw, 2.25rem);
  --step-4: clamp(2.5rem, 5vw, 5rem);
  --step-5: clamp(4.5rem, 9vw, 9rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
::selection { background: var(--gold); color: var(--ink); }

.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: 0.75rem 1rem; background: var(--ink); color: white; }
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }
.container { width: min(calc(100% - 3rem), var(--max)); margin-inline: auto; }
.mono { font-family: var(--mono); }
.system-label,
.eyebrow,
.kicker { font-family: var(--mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.11em; text-transform: uppercase; }
.system-label { display: inline-flex; align-items: center; gap: 0.55rem; }
.system-label::before { content: ""; width: 8px; height: 8px; background: var(--accent); }
.system-label.warning::before { background: var(--gold); }
.system-label.good::before { background: var(--good); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header);
  border-bottom: 1px solid var(--line);
  background: rgba(244, 248, 255, 0.94);
  color: var(--ink);
  backdrop-filter: blur(14px);
}
.nav { height: 100%; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 2rem; }
.brand { display: inline-flex; width: max-content; align-items: center; gap: 0.65rem; font-weight: 850; letter-spacing: -0.035em; text-decoration: none; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; }
.brand-mark img { width: 34px; height: 34px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 1.7rem; }
.nav-links a { color: var(--muted); font-family: var(--mono); font-size: 0.72rem; font-weight: 650; letter-spacing: 0.07em; text-decoration: none; text-transform: uppercase; }
.nav-links a:hover { color: var(--ink); }

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.75rem 1.05rem;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: white;
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background 150ms ease, color 150ms ease, transform 150ms ease;
}
.button:hover { background: var(--accent-strong); border-color: var(--accent-strong); transform: translateY(-2px); }
.button.secondary { background: transparent; color: var(--ink); }
.button.secondary:hover { background: var(--ink); color: white; }
.button.blue { border-color: var(--accent-strong); background: var(--accent-strong); }
.button[aria-disabled="true"] { cursor: default; }
.text-link { display: inline-block; border-bottom: 1px solid currentColor; color: var(--ink); font-family: var(--mono); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-decoration: none; text-transform: uppercase; }

.hero { min-height: calc(100vh - var(--header)); display: grid; align-items: stretch; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; min-width: 0; grid-template-columns: minmax(0, 1.12fr) minmax(390px, 0.88fr); }
.hero-copy { display: flex; min-width: 0; min-height: calc(100svh - var(--header)); flex-direction: column; justify-content: space-between; padding: clamp(2.75rem, 6vh, 5rem) clamp(2rem, 6vw, 6rem) 2rem 0; }
.hero h1 { max-width: 760px; margin: 1.2rem 0 1.35rem; font-size: clamp(3.6rem, min(6.3vw, 10vh), 6.7rem); font-weight: 850; letter-spacing: -0.07em; line-height: 0.88; }
.hero-lead { max-width: 610px; margin: 0; color: var(--muted); font-size: clamp(1.05rem, 1.65vw, 1.35rem); }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.4rem; margin-top: 2rem; }
.hero-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.trust-note { margin: 0; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; }
.coordinate { color: var(--muted); font-family: var(--mono); font-size: 0.65rem; line-height: 1.7; text-align: right; }

.hero-visual { position: relative; display: grid; min-width: 0; align-items: center; border-left: 1px solid var(--line); background: var(--paper-blue); padding: clamp(2rem, 4vh, 4rem) clamp(2rem, 5vw, 5rem); }
.checkpoint-shell { container-type: inline-size; position: relative; width: 100%; min-width: 0; max-width: 640px; margin-inline: auto; border: 1px solid var(--ink); background: var(--card); box-shadow: 18px 18px 0 rgba(74, 139, 255, 0.14); }
.checkpoint-shell::before,
.checkpoint-shell::after { content: ""; position: absolute; width: 24px; height: 24px; pointer-events: none; }
.checkpoint-shell::before { top: -8px; left: -8px; border-top: 3px solid var(--accent-strong); border-left: 3px solid var(--accent-strong); }
.checkpoint-shell::after { right: -8px; bottom: -8px; border-right: 3px solid var(--accent-strong); border-bottom: 3px solid var(--accent-strong); }
.window-bar { display: grid; grid-template-columns: auto 1fr auto; gap: 1rem; align-items: center; min-height: 42px; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 0.62rem; }
.window-dots { display: flex; gap: 5px; }
.window-dots i { width: 7px; height: 7px; border: 1px solid var(--ink); border-radius: 50%; }
.window-url { overflow: hidden; color: var(--muted); text-align: center; text-overflow: ellipsis; white-space: nowrap; }
.window-status { color: var(--warn); font-weight: 750; }
.interrupt-ui { padding: clamp(2rem, 4vw, 3.5rem); }
.interrupt-ui h2 { max-width: 100%; margin: 3rem 0 1.5rem; font-size: clamp(2.25rem, 13cqi, 4.8rem); font-weight: 850; letter-spacing: -0.065em; line-height: 0.9; }
.interrupt-ui p { max-width: 400px; color: var(--muted); }
.travel-count { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 1rem; margin: 3rem 0 1rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.travel-count strong { font-family: var(--mono); font-size: clamp(3.5rem, 9vw, 7rem); font-weight: 500; letter-spacing: -0.08em; line-height: 0.8; }
.travel-count span { max-width: 100px; color: var(--muted); font-family: var(--mono); font-size: 0.66rem; line-height: 1.4; text-transform: uppercase; }
.interrupt-actions { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--ink); }
.interrupt-actions span { padding: 1rem; font-family: var(--mono); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.06em; text-align: center; }
.interrupt-actions span:first-child { background: var(--ink); color: white; }
.interrupt-actions span + span { border-left: 1px solid var(--ink); }

.scroll-meter { position: fixed; top: 50%; right: 0; z-index: 40; display: grid; width: 48px; transform: translateY(-50%); border: 1px solid var(--ink); border-right: 0; background: var(--paper); }
.scroll-meter-label { padding: 0.65rem 0.35rem; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 0.53rem; font-weight: 700; letter-spacing: 0.08em; text-align: center; text-transform: uppercase; writing-mode: vertical-rl; transform: rotate(180deg); }
.scroll-meter-value { padding: 0.7rem 0.2rem; background: var(--accent-strong); color: white; font-family: var(--mono); font-size: 0.62rem; font-weight: 750; text-align: center; }
.scroll-meter.intent .scroll-meter-value { background: var(--gold); color: var(--ink); }

.manifesto { overflow: hidden; background: var(--ink); color: white; }
.manifesto-grid { display: grid; grid-template-columns: minmax(0, 1fr) 420px; min-height: 920px; }
.manifesto-copy { padding: var(--step-5) clamp(2rem, 6vw, 6rem) var(--step-5) 0; }
.manifesto h2 { max-width: 930px; margin: 2rem 0 0; font-size: clamp(3rem, 7vw, 7.4rem); font-weight: 850; letter-spacing: -0.07em; line-height: 0.88; text-transform: uppercase; }
.manifesto h2 span { display: block; margin-top: 1rem; color: #8fb8ff; }
.timeline { position: relative; padding: var(--step-5) 0 var(--step-5) 3.5rem; border-left: 1px solid rgba(255, 255, 255, 0.25); }
.timeline::before { content: "SCROLL PATH"; position: absolute; top: 2rem; left: -0.5rem; color: #8fb8ff; font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.1em; writing-mode: vertical-rl; transform: rotate(180deg); }
.timeline-event { position: relative; display: grid; grid-template-columns: 62px 1fr; gap: 1rem; padding: 1.35rem 0; border-bottom: 1px solid rgba(255, 255, 255, 0.18); }
.timeline-event::before { content: ""; position: absolute; left: -3.72rem; top: 1.8rem; width: 7px; height: 7px; background: var(--paper); }
.timeline-event time { color: #8fb8ff; font-family: var(--mono); font-size: 0.72rem; }
.timeline-event p { margin: 0; color: #c5cee0; font-size: 0.9rem; }
.timeline-stop { margin-top: 2rem; margin-left: -3.5rem; padding: 1rem 1.2rem; background: var(--gold); color: var(--ink); font-family: var(--mono); font-size: clamp(2.5rem, 5vw, 4.5rem); font-weight: 850; line-height: 1; }

.section { padding: var(--step-5) 0; }
.section-rule { display: grid; grid-template-columns: 90px 1fr auto; align-items: center; gap: 1rem; margin-bottom: var(--step-4); padding-bottom: 0.85rem; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; }
.section-rule strong { font-size: 1rem; }
.section-rule span:last-child { color: var(--muted); }
.section-heading { max-width: 860px; margin-bottom: var(--step-4); }
.section-heading.center { margin-inline: auto; text-align: center; }
.section-heading h2 { margin: 1rem 0 0.8rem; font-size: clamp(2.8rem, 6vw, 6rem); font-weight: 850; letter-spacing: -0.065em; line-height: 0.9; }
.section-heading p { max-width: 650px; margin: 0; color: var(--muted); font-size: 1.05rem; }

.checkpoints { background: #f9fbff; }
.checkpoint-row { display: grid; grid-template-columns: 110px minmax(0, 0.8fr) minmax(360px, 1.2fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; min-height: 620px; padding: 5rem 0; border-top: 1px solid var(--line); }
.checkpoint-row:last-child { border-bottom: 1px solid var(--line); }
.checkpoint-number { align-self: start; color: var(--accent-strong); font-family: var(--mono); font-size: clamp(3rem, 6vw, 5.5rem); font-weight: 500; letter-spacing: -0.08em; line-height: 0.9; }
.checkpoint-copy h3 { margin: 0.8rem 0 1rem; font-size: clamp(2.4rem, 4vw, 4.5rem); font-weight: 820; letter-spacing: -0.06em; line-height: 0.94; }
.checkpoint-copy p { max-width: 480px; color: var(--muted); }
.ui-panel { border: 1px solid var(--ink); background: var(--card); }
.block-panel { padding: 2rem; }
.url-line { display: flex; justify-content: space-between; gap: 1rem; padding: 0.8rem 0; border-bottom: 1px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: 0.7rem; }
.block-message { padding: 4rem 0 3rem; text-align: center; }
.block-message strong { display: block; margin-top: 0.75rem; font-size: clamp(2rem, 4vw, 3.8rem); letter-spacing: -0.05em; line-height: 1; }
.delay-panel { display: grid; min-height: 380px; place-items: center; background: var(--paper-blue); text-align: center; }
.countdown { font-family: var(--mono); font-size: clamp(5rem, 11vw, 10rem); font-weight: 400; letter-spacing: -0.11em; line-height: 0.85; }
.delay-panel small { display: block; margin-top: 1.5rem; font-family: var(--mono); letter-spacing: 0.09em; text-transform: uppercase; }
.scroll-ruler-demo { display: grid; grid-template-columns: 90px 1fr; min-height: 460px; background: var(--ink); color: white; }
.ruler-track { display: flex; flex-direction: column; justify-content: space-between; padding: 1.5rem 1rem; border-right: 1px solid rgba(255,255,255,.28); color: #8fb8ff; font-family: var(--mono); font-size: 0.64rem; }
.ruler-track span::after { content: ""; display: inline-block; width: 24px; margin-left: 0.5rem; border-top: 1px solid currentColor; vertical-align: middle; }
.ruler-track .stop { color: var(--gold); font-weight: 800; }
.ruler-message { display: grid; place-items: center; padding: 3rem; }
.ruler-message strong { max-width: 480px; font-size: clamp(2.4rem, 5vw, 4.8rem); letter-spacing: -0.06em; line-height: 0.92; }
.deescalate-mini { display: grid; grid-template-columns: 1fr 56px 1fr; min-height: 420px; }
.mini-feed { padding: 1.5rem; background: #f7fbff; }
.mini-feed.gray { filter: grayscale(1); }
.feed-head { padding-bottom: 1rem; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 0.66rem; font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; }
.feed-post { margin-top: 1.2rem; padding: 1rem; border: 1px solid var(--line); background: white; }
.feed-media { height: 90px; margin-bottom: 0.8rem; background: linear-gradient(135deg, var(--accent), var(--gold)); }
.feed-lines i { display: block; width: 100%; height: 6px; margin: 7px 0; background: #c6d6ee; }
.feed-lines i:nth-child(2) { width: 78%; }
.transition-arrow { display: grid; place-items: center; border-inline: 1px solid var(--line); background: var(--gold); font-family: var(--mono); font-weight: 800; writing-mode: vertical-rl; }

.friction { padding: 0; border-block: 1px solid var(--ink); }
.friction-head { padding: var(--step-5) 0 var(--step-4); }
.friction-head h2 { max-width: 900px; margin: 1rem 0 0; font-size: clamp(3.5rem, 8vw, 8rem); font-weight: 850; letter-spacing: -0.075em; line-height: 0.84; }
.mode-row { display: grid; grid-template-columns: 180px 1fr minmax(320px, 0.75fr); gap: 2rem; align-items: center; min-height: 260px; padding: 2rem max(calc((100vw - var(--max)) / 2), 1.5rem); border-top: 1px solid var(--ink); }
.mode-row.easy { background: var(--paper-blue); }
.mode-row.hard { background: var(--ink); color: white; }
.mode-name { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.09em; text-transform: uppercase; }
.mode-copy strong { display: block; font-size: clamp(2rem, 4vw, 4rem); letter-spacing: -0.055em; line-height: 1; }
.mode-copy p { margin-bottom: 0; color: var(--muted); }
.hard .mode-copy p { color: #aeb9cf; }
.delay-scale { font-family: var(--mono); }
.delay-scale-line { position: relative; height: 12px; margin: 1rem 0; border-top: 1px solid currentColor; }
.delay-scale-line::before { content: ""; position: absolute; top: -7px; left: 34%; width: 13px; height: 13px; border: 1px solid currentColor; background: var(--gold); }
.restriction-mark { display: grid; min-height: 110px; place-items: center; border: 1px solid rgba(255,255,255,.45); font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.09em; text-transform: uppercase; }

.ai-section { background: #fffaf0; }
.ai-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(480px, 1.2fr); gap: clamp(3rem, 7vw, 8rem); align-items: start; }
.ai-copy { position: sticky; top: 120px; }
.ai-copy h2 { margin: 1rem 0; font-size: clamp(3.4rem, 6vw, 6.8rem); font-weight: 850; letter-spacing: -0.07em; line-height: 0.87; }
.ai-copy p { max-width: 530px; color: var(--muted); }
.paid-note { display: inline-block; margin-top: 2rem; padding: 0.5rem 0.65rem; border: 1px solid var(--gold); font-family: var(--mono); font-size: 0.67rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.request-panel { border: 1px solid var(--ink); background: white; }
.request-head { display: flex; justify-content: space-between; padding: 1rem; border-bottom: 1px solid var(--ink); font-family: var(--mono); font-size: 0.7rem; font-weight: 750; }
.request-body { padding: clamp(1.5rem, 4vw, 3rem); }
.request-domain { font-family: var(--mono); font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -0.06em; }
.request-prompt { margin: 2rem 0 0.7rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: .07em; text-transform: uppercase; }
.request-text { min-height: 150px; padding: 1.25rem; border: 1px solid var(--line); color: var(--muted); }
.analysis-line { display: flex; align-items: center; gap: 1rem; margin-top: 1.2rem; font-family: var(--mono); font-size: 0.68rem; letter-spacing: .08em; }
.analysis-line::after { content: ""; flex: 1; height: 5px; background: repeating-linear-gradient(90deg, var(--accent) 0 12px, transparent 12px 18px); animation: scan 1.2s linear infinite; }
@keyframes scan { to { background-position: 18px 0; } }
.request-result { display: grid; grid-template-columns: auto 1fr; gap: 1.5rem; margin-top: 2rem; padding: 1.5rem; border: 1px solid var(--good); background: #f2fff7; }
.result-icon { display: grid; width: 44px; height: 44px; place-items: center; background: var(--good); color: white; font-family: var(--mono); }
.request-result strong { display: block; color: var(--good); font-family: var(--mono); letter-spacing: .06em; }
.request-result p { margin: 0.35rem 0 0; color: var(--muted); }

.visual-section { padding-bottom: 0; }
.visual-split { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); border-bottom: 0; }
.visual-half { min-height: 570px; padding: clamp(1rem, 3vw, 2rem); background: white; }
.visual-half + .visual-half { border-left: 1px solid var(--ink); }
.visual-half.muted-feed { filter: grayscale(1); }
.visual-label { display: flex; justify-content: space-between; margin-bottom: 1.5rem; font-family: var(--mono); font-size: 0.67rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.fictional-feed { max-width: 460px; margin: auto; }
.social-bar { height: 48px; border: 1px solid var(--line); background: var(--paper-blue); }
.social-story { display: grid; grid-template-columns: 42px 1fr; gap: 0.8rem; margin-top: 1rem; padding: 1rem; border: 1px solid var(--line); }
.avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--accent); }
.social-image { grid-column: 1 / -1; height: 210px; background: linear-gradient(145deg, #4a8bff, #f4c24f 55%, #c3503c); }

.rules-section { background: var(--paper-blue); }
.rules-grid { display: grid; grid-template-columns: minmax(0, .75fr) minmax(500px, 1.25fr); gap: clamp(3rem, 8vw, 9rem); align-items: center; }
.rules-copy h2 { margin: 1rem 0; font-size: clamp(3rem, 6vw, 6rem); font-weight: 850; letter-spacing: -.07em; line-height: .88; }
.rules-copy p { color: var(--muted); }
.control-panel { border: 1px solid var(--ink); background: white; }
.control-head { display: flex; justify-content: space-between; padding: 1rem 1.2rem; border-bottom: 1px solid var(--ink); font-family: var(--mono); font-size: .68rem; font-weight: 750; }
.control-row { display: grid; grid-template-columns: 190px 1fr auto; gap: 1rem; align-items: start; padding: 1.1rem 1.2rem; border-bottom: 1px solid var(--line-soft); }
.control-row:last-child { border-bottom: 0; }
.control-key { color: var(--muted); font-family: var(--mono); font-size: .65rem; letter-spacing: .07em; text-transform: uppercase; }
.control-value { font-family: var(--mono); font-size: .78rem; }
.control-state { padding: .25rem .4rem; border: 1px solid var(--good); color: var(--good); font-family: var(--mono); font-size: .58rem; font-weight: 750; text-transform: uppercase; }
.domain-stack span { display: block; }

.privacy-section { background: white; }
.privacy-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(330px, .7fr); gap: 5rem; }
.privacy-grid h2 { max-width: 880px; margin: 0; font-size: clamp(3.2rem, 7vw, 7rem); font-weight: 850; letter-spacing: -.075em; line-height: .87; }
.privacy-list { border-top: 1px solid var(--ink); }
.privacy-item { display: grid; grid-template-columns: 32px 1fr; gap: 1rem; padding: 1.1rem 0; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; }
.privacy-item span:first-child { color: var(--good); }
.privacy-note { grid-column: 1 / -1; max-width: 760px; margin-top: 3rem; color: var(--muted); font-size: .9rem; }

.final-checkpoint { position: relative; display: grid; min-height: 92vh; place-items: center; overflow: hidden; background: var(--ink); color: white; text-align: center; }
.final-checkpoint::before { content: ""; position: absolute; inset: 2rem; border: 1px solid rgba(255,255,255,.28); pointer-events: none; }
.final-checkpoint-inner { position: relative; z-index: 1; padding: 7rem 2rem; }
.final-checkpoint h2 { max-width: 1000px; margin: 2rem auto; font-size: clamp(4rem, 10vw, 10rem); font-weight: 850; letter-spacing: -.08em; line-height: .78; }
.final-checkpoint p { color: #b9c5da; font-size: 1.1rem; }
.final-checkpoint .button { border-color: white; background: white; color: var(--ink); }
.final-checkpoint .button:hover { border-color: var(--gold); background: var(--gold); }
.setup-note { display: block; margin-top: 1rem; color: #8f9cb5; font-family: var(--mono); font-size: .65rem; letter-spacing: .08em; text-transform: uppercase; }

.site-footer { border-top: 1px solid var(--line); padding: 2rem 0; background: var(--paper); color: var(--muted); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-family: var(--mono); font-size: .67rem; letter-spacing: .05em; text-transform: uppercase; }
.footer-links { display: flex; gap: 1.2rem; }
.footer-links a { text-decoration: none; }

/* Guide and article system */
.page-hero { padding: var(--step-5) 0 var(--step-4); border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 1000px; margin: 1.2rem 0 1.5rem; font-size: clamp(3.6rem, 8vw, 8rem); font-weight: 850; letter-spacing: -.075em; line-height: .85; }
.page-lead { max-width: 680px; margin: 0; color: var(--muted); font-size: 1.15rem; }
.gradient-text { color: var(--ink); }
.guide-grid { counter-reset: guide-item; border-top: 1px solid var(--ink); }
.card { background: white; }
.guide-card { counter-increment: guide-item; display: grid; grid-template-columns: 64px minmax(150px, .55fr) minmax(260px, 1.1fr) minmax(220px, .9fr) auto; gap: clamp(1rem, 3vw, 3rem); align-items: center; min-height: 170px; padding: 1.6rem 0; border-bottom: 1px solid var(--ink); text-decoration: none; transition: background 150ms ease; }
.guide-card::before { content: "0" counter(guide-item); color: var(--accent-strong); font-family: var(--mono); font-size: 1.1rem; font-weight: 750; }
.guide-card:hover { background: var(--paper-blue); }
.guide-card .kicker { color: var(--accent-strong); }
.guide-card h2, .guide-card h3 { margin: 0; font-size: clamp(1.65rem, 2.6vw, 2.6rem); letter-spacing: -.045em; line-height: 1; }
.guide-card p { margin: 0; color: var(--muted); }
.guide-card .read-more { font-family: var(--mono); font-size: .7rem; font-weight: 750; letter-spacing: .06em; white-space: nowrap; text-transform: uppercase; }
.callout { margin-top: 2rem; padding: clamp(2rem, 5vw, 4rem); border: 1px solid var(--ink); text-align: center; }
.callout h2 { margin: 0 0 .7rem; font-size: clamp(2rem, 4vw, 4rem); letter-spacing: -.05em; line-height: 1; }
.callout p { max-width: 620px; margin-inline: auto; color: var(--muted); }
.callout .hero-actions { justify-content: center; }
.breadcrumbs { padding: 1.2rem 0; border-bottom: 1px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: .68rem; text-transform: uppercase; }
.breadcrumbs a { color: var(--accent-strong); text-decoration: none; }
.article-layout { display: grid; grid-template-columns: minmax(0, 780px) 260px; gap: clamp(3rem, 7vw, 7rem); align-items: start; padding: var(--step-4) 0 var(--step-5); }
.article { font-size: 1.04rem; }
.article h1 { margin: 1.2rem 0; font-size: clamp(3.3rem, 7vw, 6.5rem); font-weight: 850; letter-spacing: -.075em; line-height: .86; }
.article h2 { margin: 3.5rem 0 1rem; padding-top: 1rem; border-top: 1px solid var(--line); font-size: clamp(1.9rem, 3.4vw, 3.1rem); letter-spacing: -.045em; line-height: 1; }
.article h3 { margin: 2rem 0 .5rem; font-size: 1.3rem; }
.article p, .article li { color: #344465; }
.article strong { color: var(--ink); }
.article a { color: var(--accent-strong); }
.article ol, .article ul { padding-left: 1.4rem; }
.article li + li { margin-top: .7rem; }
.article-meta { color: var(--muted); font-family: var(--mono); font-size: .7rem; text-transform: uppercase; }
.answer-box, .tip-box { margin: 2rem 0; padding: 1.25rem 1.35rem; border-left: 5px solid var(--accent); background: var(--paper-blue); }
.tip-box { border-color: var(--gold); background: #fff8e8; }
.answer-box p, .tip-box p { margin: 0; }
.article-product-prompt { display: grid; grid-template-columns: 135px 1fr auto; gap: 1.25rem; align-items: center; margin: 2rem 0; padding: 1.2rem 0; border-block: 1px solid var(--ink); }
.article-product-prompt p { margin: 0; font-size: .92rem; }
.article-product-prompt .text-link { white-space: nowrap; }
.step-list { counter-reset: steps; list-style: none; padding: 0 !important; }
.step-list > li { counter-increment: steps; position: relative; min-height: 54px; padding: .25rem 0 1.6rem 4rem; }
.step-list > li::before { content: "0" counter(steps); position: absolute; left: 0; top: 0; color: var(--accent-strong); font-family: var(--mono); font-size: 1.4rem; font-weight: 800; }
.toc { position: sticky; top: 100px; padding-left: 1rem; border-left: 1px solid var(--ink); }
.toc strong { display: block; margin-bottom: .8rem; font-family: var(--mono); font-size: .7rem; letter-spacing: .07em; text-transform: uppercase; }
.toc a { display: block; padding: .35rem 0; color: var(--muted); font-size: .86rem; text-decoration: none; }
.toc a:hover { color: var(--accent-strong); }
.article .callout h2 { margin: 0 0 .7rem; padding: 0; border: 0; font-size: clamp(2rem, 4vw, 4rem); letter-spacing: -.05em; line-height: 1; }
.article .button, .article .button:visited { color: white; }
.article .button:hover { color: white; }

@media (max-width: 1060px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-copy { min-height: auto; padding-right: 0; }
  .hero-visual { min-height: 680px; border-top: 1px solid var(--line); border-left: 0; }
  .manifesto-grid { grid-template-columns: 1fr 340px; }
  .checkpoint-row { grid-template-columns: 80px 1fr; }
  .checkpoint-row .ui-panel { grid-column: 2; }
  .ai-grid, .rules-grid { grid-template-columns: 1fr; }
  .ai-copy { position: static; }
  .privacy-grid { grid-template-columns: 1fr; gap: 3rem; }
  .guide-card { grid-template-columns: 54px minmax(130px, .5fr) minmax(230px, 1fr) minmax(190px, .8fr); }
  .guide-card .read-more { grid-column: 3; }
}

@media (max-width: 760px) {
  :root { --header: 64px; }
  .container { width: min(calc(100% - 2rem), var(--max)); }
  .nav { display: flex; justify-content: space-between; gap: .75rem; }
  .nav > .button { min-height: 38px; flex: 0 0 auto; padding: .55rem .65rem; font-size: 0; }
  .nav > .button::before { content: "ADD"; font-size: .65rem; }
  .nav > .button span { font-size: .72rem; }
  .hero-copy { padding-top: 4rem; }
  .hero h1 { max-width: 100%; font-size: clamp(3.35rem, 15vw, 5.4rem); letter-spacing: -.07em; }
  .hero-foot { align-items: flex-start; flex-direction: column; }
  .coordinate { text-align: left; }
  .hero-visual { min-height: 600px; margin-inline: -1rem; overflow: hidden; padding: 2rem 1rem; }
  .checkpoint-shell { box-shadow: 8px 8px 0 rgba(74,139,255,.15); }
  .manifesto-grid { grid-template-columns: 1fr; }
  .manifesto-copy { padding-right: 0; }
  .manifesto h2 { font-size: clamp(3.2rem, 16vw, 5.5rem); }
  .timeline { margin-left: 1rem; padding-left: 2rem; }
  .timeline-event::before { left: -2.22rem; }
  .timeline-stop { margin-left: -2rem; }
  .scroll-meter { width: 38px; }
  .scroll-meter-label { display: none; }
  .section-rule { grid-template-columns: 55px 1fr; }
  .section-rule span:last-child { display: none; }
  .checkpoint-row { grid-template-columns: 50px 1fr; gap: 1rem; min-height: 0; padding: 4rem 0; }
  .checkpoint-number { font-size: 2.6rem; }
  .checkpoint-row .ui-panel { grid-column: 1 / -1; margin-left: 1.2rem; }
  .deescalate-mini { grid-template-columns: 1fr; }
  .transition-arrow { min-height: 44px; border: 0; border-block: 1px solid var(--line); writing-mode: horizontal-tb; }
  .mode-row { grid-template-columns: 1fr; gap: 1.2rem; padding-block: 3rem; }
  .ai-grid { grid-template-columns: 1fr; }
  .request-panel { margin-inline: -.5rem; }
  .visual-split { grid-template-columns: 1fr; }
  .visual-half { min-height: 480px; }
  .visual-half + .visual-half { border-top: 1px solid var(--ink); border-left: 0; }
  .rules-grid { grid-template-columns: 1fr; }
  .control-row { grid-template-columns: 1fr auto; }
  .control-value { grid-row: 2; }
  .control-state { grid-row: 1 / 3; grid-column: 2; }
  .privacy-grid h2 { font-size: clamp(3.6rem, 15vw, 6rem); }
  .final-checkpoint h2 { font-size: clamp(4rem, 19vw, 7rem); }
  .final-checkpoint::before { inset: .75rem; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .guide-card { grid-template-columns: 40px 1fr; gap: .7rem 1rem; min-height: 0; padding: 1.5rem 0; }
  .guide-card::before { grid-row: 1 / 5; align-self: start; }
  .guide-card .kicker, .guide-card h2, .guide-card p, .guide-card .read-more { grid-column: 2; }
  .guide-card .read-more { padding-top: .6rem; }
  .article-layout { grid-template-columns: 1fr; }
  .toc { display: none; }
  .article-product-prompt { grid-template-columns: 1fr; gap: .75rem; }
  .article-product-prompt .text-link { width: max-content; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}