/* CueCanon - Atlas brand. 8-pt grid. Light. System font stack (no external requests). */
:root {
  --bg: #F1FAF9;
  --surface: #FFFFFF;
  --ink: #062E2D;
  --muted: #3E5B59;
  --line: #CFE5E3;
  --primary: #00706D;
  --primary-d: #005A58;
  --tint: #DDF1EF;
  --accent: #FF8A00;
  --accent-ink: #8F4700;
  --s1: 8px; --s2: 16px; --s3: 24px; --s4: 32px; --s5: 40px; --s6: 48px; --s8: 64px; --s10: 80px; --s12: 96px; --s16: 128px;
  --r: 16px;
  --wrap: 1200px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --ease: cubic-bezier(.2, .8, .2, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 18px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg { max-width: 100%; display: block; }
a { color: var(--primary); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--primary-d); text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: var(--s2); top: -64px; background: var(--ink); color: #fff; padding: var(--s1) var(--s2); border-radius: 8px; z-index: 100; }
.skip:focus { top: var(--s2); }
.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--s3)); margin: 0 auto; padding-inline: max(var(--s3), env(safe-area-inset-left)); }
h1, h2, h3 { line-height: 1.05; letter-spacing: -0.03em; margin: 0; font-weight: 800; text-wrap: balance; }
h1 { font-size: clamp(44px, 6.6vw, 92px); }
h2 { font-size: clamp(32px, 5vw, 60px); }
h3 { font-size: 24px; letter-spacing: -0.015em; line-height: 1.2; }
p { margin: 0 0 var(--s2); text-wrap: pretty; }
.lede { font-size: clamp(19px, 2.2vw, 24px); line-height: 1.45; color: var(--muted); max-width: 36ch; }
.eyebrow { font-family: var(--mono); font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-ink); margin: 0 0 var(--s2); font-weight: 600; }
.muted { color: var(--muted); }

/* header */
.top { position: sticky; top: 0; z-index: 50; background: rgba(241, 250, 249, .86); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid transparent; transition: border-color .3s; }
.top.stuck { border-color: var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: var(--s3); }
.logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); font-weight: 800; font-size: 22px; letter-spacing: -0.02em; }
.logo b { color: var(--primary); font-weight: 800; }
.logo svg { width: 32px; height: 32px; }
.main { display: flex; gap: var(--s1); align-items: center; }
.main a { text-decoration: none; color: var(--ink); font-size: 16px; font-weight: 600; padding: 12px 16px; border-radius: 999px; }
.main a:hover, .main a[aria-current="page"] { background: var(--tint); color: var(--primary-d); }
.main a.cta { background: var(--ink); color: #fff; }
.main a.cta:hover { background: var(--primary); color: #fff; }
.menu-btn { display: none; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 56px; padding: 0 var(--s4); border-radius: 999px; font: 700 17px/1 var(--font); text-decoration: none; border: 2px solid transparent; cursor: pointer; transition: transform .25s var(--ease), background .2s, color .2s, box-shadow .25s; }
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-d); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 24px -12px rgba(0, 112, 109, .6); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: #fff; }
.btn.warm { background: var(--accent); color: var(--ink); }
.btn.warm:hover { transform: translateY(-2px); box-shadow: 0 12px 24px -12px rgba(255, 138, 0, .8); color: var(--ink); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.row { display: flex; flex-wrap: wrap; gap: var(--s2); align-items: center; }

/* hero */
.hero { position: relative; padding: var(--s8) 0 var(--s12); overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: var(--s8); align-items: center; position: relative; z-index: 2; }
.hero h1 { margin-bottom: var(--s4); }
.hero h1 .l2 { color: var(--primary); display: block; }
.hero .lede { margin-bottom: var(--s5); }
.hero-bg { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.hero-bg i { position: absolute; bottom: 0; display: block; background: var(--tint); border-radius: 24px 24px 0 0; transform-origin: bottom; animation: rise 1.2s var(--ease) both; }
.hero-bg i:nth-child(1) { left: 53%; width: 14%; height: 44%; animation-delay: .1s; }
.hero-bg i:nth-child(2) { left: 68%; width: 14%; height: 72%; background: #FFE7C7; animation-delay: .25s; }
.hero-bg i:nth-child(3) { left: 83%; width: 12%; height: 26%; animation-delay: .4s; }
@keyframes rise { from { transform: scaleY(0); opacity: 0; } to { transform: scaleY(1); opacity: 1; } }
.stage { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: var(--s4); box-shadow: 0 40px 80px -40px rgba(6, 46, 45, .35); }
.stage .label { font-family: var(--mono); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 var(--s1); }
.say { font: 600 20px/1.4 var(--mono); background: var(--bg); border-radius: 12px; padding: var(--s2) var(--s3); min-height: 64px; margin: 0 0 var(--s3); display: flex; align-items: center; }
.say span { display: inline-block; overflow: hidden; white-space: nowrap; max-width: 100%; border-right: 3px solid var(--accent); animation: typing 2.6s steps(36) .6s both, caret .7s step-end 5; }
@keyframes typing { from { width: 0; } to { width: 36ch; } }
@keyframes caret { 50% { border-color: transparent; } }
.result { opacity: 0; transform: translateY(16px); animation: up .8s var(--ease) 3.4s forwards; }
@keyframes up { to { opacity: 1; transform: none; } }
.result .card { margin-bottom: 0; }

/* cards */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: var(--s3); margin-bottom: var(--s3); transition: transform .3s var(--ease), box-shadow .3s; }
a.card { display: block; text-decoration: none; color: inherit; }
a.card:hover { transform: translateY(-4px); box-shadow: 0 24px 40px -28px rgba(6, 46, 45, .4); }
.card h3 { margin-bottom: var(--s1); }
.card p:last-child { margin-bottom: 0; }
.signed { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; color: var(--muted); }
.signed::before { content: ""; width: 16px; height: 16px; background: var(--accent); border-radius: 4px; flex: none; }
.badge { display: inline-block; font: 600 13px/1 var(--mono); letter-spacing: .04em; padding: 8px 12px; border-radius: 999px; background: var(--tint); color: var(--primary-d); }
.badge.demo { background: #FFE7C7; color: var(--accent-ink); }

/* sections */
section { padding: var(--s12) 0; position: relative; }
.sec-head { margin-bottom: var(--s8); max-width: 26ch; }
.sec-head.wide { max-width: 34ch; }
.strip { padding: var(--s6) 0; border-block: 1px solid var(--line); background: var(--surface); }
.strip .wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s4); }
.strip p { margin: 0; font-size: clamp(24px, 3.4vw, 40px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; }
.strip p small { display: block; margin-top: var(--s1); font-size: 16px; font-weight: 500; letter-spacing: 0; color: var(--muted); line-height: 1.5; }
.strip p:nth-child(1) b { color: var(--primary); } .strip p:nth-child(2) b { color: var(--accent-ink); } .strip p:nth-child(3) b { color: var(--ink); }

.chap { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s10); align-items: center; padding: var(--s8) 0; }
.chap:nth-child(even) .chap-v { order: -1; }
.num { font: 800 clamp(80px, 12vw, 160px)/0.9 var(--font); letter-spacing: -0.06em; color: var(--tint); margin-bottom: var(--s2); -webkit-text-stroke: 2px var(--primary); }
.chap h3 { font-size: clamp(28px, 3.6vw, 44px); letter-spacing: -0.03em; margin-bottom: var(--s2); }
.chap p { color: var(--muted); max-width: 40ch; font-size: 19px; }
.chap-v { background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: var(--s5); min-height: 320px; display: flex; flex-direction: column; justify-content: center; gap: var(--s2); position: relative; overflow: hidden; }
.bubble { background: var(--bg); border-radius: 16px 16px 16px 4px; padding: var(--s2) var(--s3); font: 600 17px/1.4 var(--mono); }
.yn { display: flex; gap: var(--s1); }
.yn span { flex: 1; text-align: center; padding: 14px 0; border-radius: 999px; font-weight: 800; border: 2px solid var(--ink); }
.yn span:first-child { background: var(--ink); color: #fff; }
.q { font-weight: 800; font-size: 22px; letter-spacing: -0.02em; margin: 0; }
.podium { display: flex; align-items: flex-end; gap: var(--s1); height: 160px; }
.podium i { flex: 1; display: block; border-radius: 8px 8px 0 0; background: var(--primary); }
.podium i:nth-child(1) { height: 60%; } .podium i:nth-child(2) { height: 100%; background: var(--accent); } .podium i:nth-child(3) { height: 36%; }
.chain { display: grid; gap: var(--s1); }
.chain div { display: flex; justify-content: space-between; align-items: center; gap: var(--s2); padding: var(--s2) var(--s3); background: var(--bg); border-radius: 12px; font-weight: 700; }
.chain div:first-child { border-left: 8px solid var(--accent); }
.chain div:nth-child(2) { margin-left: var(--s3); border-left: 8px solid var(--primary); }
.chain div:nth-child(3) { margin-left: var(--s6); border-left: 8px solid var(--line); }
.chain small { color: var(--muted); font-weight: 500; }

/* demo */
.demo { background: var(--ink); color: var(--bg); border-radius: 32px; padding: var(--s8); margin-inline: auto; }
.demo-wrap { padding-block: 0; }
.demo h2 { color: #fff; margin-bottom: var(--s2); }
.demo .lede { color: #B9D6D3; max-width: 44ch; }
.demo-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: var(--s8); margin-top: var(--s6); align-items: start; }
.demo label { display: block; font: 600 14px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: #8FD6D2; margin-bottom: var(--s1); }
.demo textarea { width: 100%; min-height: 128px; resize: vertical; border-radius: 16px; border: 2px solid #1F5654; background: #0B3C3A; color: #fff; padding: var(--s2) var(--s3); font: 500 18px/1.5 var(--font); }
.demo textarea:focus { border-color: var(--accent); outline: none; }
.chips { display: flex; flex-wrap: wrap; gap: var(--s1); margin: var(--s2) 0 var(--s3); }
.chip { border: 1px solid #2B6A67; background: transparent; color: #DDF1EF; padding: 10px 16px; border-radius: 999px; font: 600 15px/1.2 var(--font); cursor: pointer; }
.chip:hover { background: #134745; border-color: #8FD6D2; }
.out { background: var(--surface); color: var(--ink); border-radius: 24px; padding: var(--s4); min-height: 320px; }
.out .q { margin-bottom: var(--s3); }
.out .yn button, .out .row button { cursor: pointer; }
.btn.dark { background: var(--ink); color: #fff; }
.btn.dark:hover { background: var(--primary); color: #fff; }
.btn.line { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.line:hover { border-color: var(--ink); }
.hit { border-top: 1px solid var(--line); padding: var(--s3) 0; }
.hit:first-of-type { border-top: 0; padding-top: 0; }
.hit h3 a { color: var(--ink); text-decoration: none; }
.hit h3 a:hover { color: var(--primary); }
.hit p { margin: var(--s1) 0 0; color: var(--muted); }
.hint { font-size: 15px; color: var(--muted); }
.demo .hint { color: #9EC6C2; }

/* library */
.cats { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--s3); }
.cats .card { margin: 0; min-height: 200px; display: flex; flex-direction: column; justify-content: space-between; }
.cats .count { font: 800 56px/1 var(--font); letter-spacing: -0.05em; color: var(--primary); }
.list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--s3); }
.list .card { margin: 0; }
.crumbs { font-size: 15px; color: var(--muted); margin-bottom: var(--s4); }
.crumbs a { color: var(--muted); }
.page-head { padding: var(--s8) 0 var(--s6); }
.page-head h1 { font-size: clamp(40px, 6.4vw, 80px); margin-bottom: var(--s3); }
.page-head .lede { max-width: 48ch; }
.prose { max-width: 68ch; }
.prose h2 { font-size: clamp(28px, 3.6vw, 40px); margin: var(--s8) 0 var(--s2); }
.prose h2:first-child { margin-top: 0; }
.prose li { margin-bottom: var(--s1); }
.promptbox { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: var(--s4); font: 500 17px/1.7 var(--mono); white-space: pre-wrap; overflow-wrap: anywhere; margin-bottom: var(--s3); }
.promptbox mark { background: #FFE7C7; color: var(--ink); border-radius: 4px; padding: 0 4px; }
.fields { display: grid; gap: var(--s2); margin: var(--s3) 0; }
.fields label { font-weight: 700; font-size: 15px; display: block; margin-bottom: 4px; }
.fields input { width: 100%; min-height: 48px; border: 2px solid var(--line); border-radius: 12px; padding: 0 var(--s2); font: 500 17px var(--font); background: #fff; color: var(--ink); }
.fields input:focus { border-color: var(--primary); outline: none; }
.meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--s2); margin: var(--s4) 0; }
.meta div { background: var(--tint); border-radius: 12px; padding: var(--s2) var(--s3); }
.meta dt { font: 600 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 8px; }
.meta dd { margin: 0; font-weight: 700; }
.related { margin-top: var(--s10); }
.related h2 { font-size: 32px; margin-bottom: var(--s3); }

/* nathan */
.nathan { display: grid; grid-template-columns: 280px 1fr; gap: var(--s8); align-items: center; }
.avatar { width: 280px; height: 280px; border-radius: 32px; background: var(--primary); color: #fff; display: grid; place-items: center; font: 800 120px/1 var(--font); letter-spacing: -0.06em; position: relative; }
.avatar small { position: absolute; left: var(--s2); bottom: var(--s2); font: 700 13px/1 var(--mono); letter-spacing: .08em; background: var(--accent); color: var(--ink); padding: 8px 12px; border-radius: 999px; }
.say-nathan { font-size: clamp(22px, 2.6vw, 30px); line-height: 1.35; font-weight: 700; letter-spacing: -0.02em; max-width: 36ch; }

.final { background: var(--ink); color: #fff; text-align: center; border-radius: 32px; padding: var(--s12) var(--s3); }
.final h2 { color: #fff; margin-bottom: var(--s4); }
.final .row { justify-content: center; }
.final .btn.ghost { color: #fff; border-color: #fff; }
.final .btn.ghost:hover { background: #fff; color: var(--ink); }

/* footer */
.foot { border-top: 1px solid var(--line); margin-top: var(--s12); padding: var(--s8) 0 var(--s6); background: var(--surface); }
.foot .grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--s6); }
.foot h4 { font: 700 13px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 var(--s2); }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin-bottom: 8px; }
.foot a { color: var(--ink); text-decoration: none; font-weight: 600; font-size: 16px; }
.foot a:hover { color: var(--primary); text-decoration: underline; }
.foot .fine { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: var(--s3); font-size: 15px; color: var(--muted); }
.foot .fine p { margin: 0 0 var(--s1); max-width: 78ch; }

/* scroll reveal: hidden state only when JS is running and motion is allowed */
.js .rv { opacity: 0; transform: translateY(32px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js .rv.in { opacity: 1; transform: none; }
.js .rv.d1 { transition-delay: .1s; } .js .rv.d2 { transition-delay: .2s; } .js .rv.d3 { transition-delay: .3s; }

@media (max-width: 900px) {
  body { font-size: 17px; }
  .wrap { padding-inline: max(var(--s3), env(safe-area-inset-left)); }
  section { padding: var(--s8) 0; }
  .hero { padding: var(--s5) 0 var(--s8); }
  .hero .wrap, .chap, .demo-grid, .nathan { grid-template-columns: minmax(0, 1fr); gap: var(--s5); }
  .hero .wrap > *, .chap > *, .demo-grid > *, .nathan > * { min-width: 0; }
  .say span { white-space: normal; animation: none; width: auto; border-right: 0; }
  .eyebrow { font-size: 12px; }
  .chap { padding: var(--s4) 0; }
  .chap:nth-child(even) .chap-v { order: 0; }
  .chap-v { min-height: 0; padding: var(--s3); }
  .hero-bg i:nth-child(1) { left: 6%; width: 24%; height: 18%; } .hero-bg i:nth-child(2) { left: 36%; width: 28%; height: 30%; } .hero-bg i:nth-child(3) { left: 70%; width: 22%; height: 12%; }
  .strip .wrap { grid-template-columns: 1fr; gap: var(--s3); }
  .demo { padding: var(--s4) var(--s3); border-radius: 24px; }
  .out { padding: var(--s3); }
  .avatar { width: 200px; height: 200px; font-size: 88px; }
  .foot .grid { grid-template-columns: 1fr 1fr; gap: var(--s4); }
  .foot .grid > :first-child { grid-column: 1 / -1; }
  .final { border-radius: 24px; padding: var(--s8) var(--s3); }
  .menu-btn { display: inline-flex; align-items: center; min-height: 48px; padding: 0 var(--s2); border-radius: 999px; border: 2px solid var(--ink); background: transparent; font: 700 16px var(--font); color: var(--ink); cursor: pointer; }
  .main { display: none; position: absolute; left: 0; right: 0; top: 72px; background: var(--bg); flex-direction: column; align-items: stretch; padding: var(--s2) var(--s3) var(--s3); border-bottom: 1px solid var(--line); gap: 4px; }
  .main.open { display: flex; }
  .main a { padding: 16px; font-size: 18px; }
  .list { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .say span { width: auto; border-right-color: transparent; }
  .result, .js .rv { opacity: 1 !important; transform: none !important; }
  .hero-bg i { opacity: 1; transform: none; }
}
@media print { .top, .foot, .hero-bg { display: none; } }

.avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 0; border-radius: inherit; display: block; }