/* ---------- Tokens ---------- */
:root {
  --ink: #0b0c0e;
  --ink-2: #111316;
  --paper: #f6f3ec;
  --bg: #0c0d10;
  --surface: #141519;
  --surface-2: #1a1c21;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #ece8e1;
  --muted: #a8a39a;
  --faint: #6f6a62;
  --accent: #d8a657;      /* warm ink-gold */
  --accent-2: #f0c878;
  --accent-soft: rgba(216, 166, 87, 0.14);
  --ghost: rgba(216, 166, 87, 0.42);
  --radius: 14px;
  --radius-lg: 22px;
  --maxw: 1160px;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --shadow: 0 30px 80px -30px rgba(0,0,0,0.7), 0 8px 30px -12px rgba(0,0,0,0.5);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.02em; line-height: 1.08; }
p { margin: 0; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #000; padding: .6rem 1rem; z-index: 100;
  border-radius: 0 0 8px 0;
}
.skip:focus { left: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  font-weight: 600; font-size: .95rem;
  padding: .8rem 1.5rem; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
  white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  color: #1a1205;
  box-shadow: 0 8px 24px -10px rgba(216,166,87,0.6), inset 0 1px 0 rgba(255,255,255,0.4);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -10px rgba(216,166,87,0.7); }
.btn--ghost { background: transparent; border-color: var(--line-strong); color: var(--text); }
.btn--ghost:hover { background: rgba(255,255,255,0.04); border-color: var(--accent); color: var(--accent-2); }
.btn--lg { font-size: 1.05rem; padding: 1rem 2.2rem; }
.btn--disabled { opacity: .6; cursor: default; pointer-events: none; }

kbd {
  font-family: var(--mono); font-size: .82em;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--line-strong); border-bottom-width: 2px;
  border-radius: 6px; padding: .18em .5em; min-width: 1.6em;
  display: inline-block; text-align: center; line-height: 1;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: rgba(12,13,16,0.72);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.nav.is-scrolled { border-bottom-color: var(--line); background: rgba(12,13,16,0.86); }
.nav__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem;
  height: 66px; display: flex; align-items: center; gap: 1.5rem;
}
.nav__brand { display: inline-flex; align-items: center; gap: .55rem; font-weight: 700; letter-spacing: -0.02em; font-size: 1.05rem; }
.nav__logo { width: 26px; height: 26px; border-radius: 7px; }
.nav__links { display: flex; gap: 1.6rem; margin-left: 1.5rem; font-size: .92rem; color: var(--muted); }
.nav__links a { transition: color .15s ease; }
.nav__links a:hover { color: var(--text); }
.nav__cta { margin-left: auto; padding: .6rem 1.2rem; font-size: .9rem; }
@media (max-width: 820px) { .nav__links { display: none; } }

/* ---------- Layout ---------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: 7rem 1.5rem; }
.section--alt { max-width: none; background: linear-gradient(180deg, rgba(255,255,255,0.015), transparent 60%); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section--alt > * { max-width: var(--maxw); margin: 0 auto; }
.section__head { max-width: 720px; margin-bottom: 3.2rem; }
.section__head h2 { font-family: var(--serif); font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 400; letter-spacing: -0.015em; }
.eyebrow {
  text-transform: uppercase; letter-spacing: 0.22em; font-size: .72rem;
  color: var(--accent); font-weight: 600; margin: 0 0 1rem;
}

/* ---------- Hero ---------- */
.hero { position: relative; max-width: var(--maxw); margin: 0 auto; padding: 6rem 1.5rem 4rem; }
.hero::before {
  content: ""; position: absolute; inset: -10% -20% 0 -20%; z-index: -1;
  background:
    radial-gradient(60% 50% at 78% 18%, rgba(216,166,87,0.18), transparent 70%),
    radial-gradient(45% 40% at 12% 30%, rgba(120,150,255,0.10), transparent 70%);
  filter: blur(10px);
}
.hero__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 3.5rem; align-items: center; }
@media (max-width: 920px) { .hero__grid { grid-template-columns: 1fr; gap: 2.5rem; } }

.hero__title {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5.4vw, 4.6rem);
  font-weight: 400; letter-spacing: -0.025em; line-height: 1.02;
  margin-bottom: 1.6rem;
}
.hero__dash { color: var(--accent); font-weight: 300; }
.hero__lede { font-size: 1.16rem; color: var(--muted); max-width: 30em; margin-bottom: 2.2rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-bottom: 2rem; }
.hero__meta { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 1.4rem; color: var(--faint); font-size: .9rem; }
.hero__meta li { display: flex; align-items: center; gap: .5rem; }
.hero__meta li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- Editor mockup (mirrors the real Scribe window) ---------- */
.hero__demo {
  position: relative;
  background: linear-gradient(180deg, var(--surface), var(--ink-2));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.editor.is-focused { outline: 2px solid var(--accent); outline-offset: 2px; }
.editor__titlebar {
  display: flex; align-items: center; gap: .5rem;
  padding: .7rem 1rem; border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
}
.dot { width: 11px; height: 11px; border-radius: 50%; flex-shrink: 0; }
.dot--r { background: #ff5f57; } .dot--y { background: #febc2e; } .dot--g { background: #28c840; }
.editor__title { margin-left: .8rem; font-size: .82rem; color: var(--faint); font-weight: 600; letter-spacing: .02em; }
.editor__body { padding: 1.6rem 1.4rem 1.2rem; }

/* header row */
.editor__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1.1rem; }
.editor__brandtitle { display: block; font-family: var(--serif); font-size: 1.7rem; font-weight: 700; letter-spacing: -0.02em; }
.editor__sub { display: block; font-size: .82rem; color: var(--muted); margin-top: .1rem; }
.editor__stats { display: flex; gap: 1.1rem; }
.metric { display: flex; flex-direction: column; align-items: flex-end; gap: .05rem; }
.metric__val { font-family: var(--mono); font-size: 1.05rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.metric__label { font-size: .68rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

/* composer */
.composer {
  position: relative;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.1rem 1.3rem;
  min-height: 150px;
}
.composer__text {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 1.35rem; line-height: 1.5; margin: 0; min-height: 4.5em; letter-spacing: -0.005em;
}
.ghost { color: rgba(255,255,255,0.4); transition: opacity .12s ease; }
.caret { display: inline-block; width: 2px; height: 1.05em; background: var(--accent); margin-left: 1px; vertical-align: text-bottom; animation: blink 1.05s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* footer legend */
.editor__legend { margin: 1rem 0 0; font-size: .76rem; color: var(--faint); line-height: 1.5; }

/* floating prediction overlay bubble */
.overlay {
  position: absolute; left: 1.4rem; right: 1.4rem; bottom: 1.2rem;
  display: flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 64px; padding: .5rem 1rem;
  background: rgba(26,28,33,0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  box-shadow: 0 18px 40px -12px rgba(0,0,0,0.6);
  transition: opacity .15s ease, transform .15s ease;
}
.overlay.is-empty .overlay__list { color: var(--faint); font-size: .9rem; }
.overlay__list { display: flex; gap: .5rem; flex-wrap: wrap; justify-content: center; }
.sugg {
  display: flex; flex-direction: column; gap: .15rem; padding: .4rem .55rem;
  border-radius: 8px; min-width: 0;
}
.sugg__word { font-family: -apple-system, system-ui, sans-serif; font-weight: 600; font-size: .95rem; letter-spacing: .03em; white-space: nowrap; }
.sugg__hint { font-size: .68rem; color: var(--muted); }
.sugg.is-active { background: rgba(216,166,87,0.22); }
.sugg.is-active .sugg__word { color: var(--accent-2); }

@media (max-width: 920px) { .overlay { position: static; margin-top: 1rem; } }

/* ---------- Personas ---------- */
.who__position {
  font-family: var(--serif); font-size: 1.2rem; color: var(--accent-2);
  margin-bottom: 2.4rem; max-width: 50em; line-height: 1.6; font-style: italic;
}
.personas { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
@media (max-width: 980px) { .personas { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .personas { grid-template-columns: 1fr; } }
.persona {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.4rem; transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.persona:hover { transform: translateY(-3px); border-color: var(--line-strong); background: var(--surface-2); }
.persona h3 { font-family: var(--serif); font-weight: 500; font-size: 1.12rem; margin-bottom: .4rem; letter-spacing: -0.01em; }
.persona p { color: var(--muted); font-size: .94rem; }
.persona--accent { background: linear-gradient(180deg, rgba(216,166,87,0.10), var(--surface)); border-color: var(--accent); }
.persona--accent h3 { color: var(--accent-2); }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; display: grid; gap: .8rem; }
.faq__item {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.2rem 1.4rem; transition: border-color .2s ease;
}
.faq__item[open] { border-color: var(--line-strong); }
.faq__item summary {
  cursor: pointer; list-style: none; font-weight: 600; font-size: 1.04rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+"; font-size: 1.4rem; color: var(--accent); font-weight: 300; line-height: 1; transition: transform .2s ease;
}
.faq__item[open] summary::after { content: "−"; transform: rotate(0); }
.faq__item p { color: var(--muted); margin-top: .8rem; line-height: 1.65; }
.faq__item kbd { font-size: .85em; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
@media (max-width: 820px) { .cards { grid-template-columns: 1fr; } }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 2rem;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); background: var(--surface-2); }
.card h3 { font-family: var(--serif); font-weight: 500; font-size: 1.35rem; margin-bottom: .7rem; letter-spacing: -0.01em; }
.card p { color: var(--muted); }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.step {
  text-align: left; padding: 2rem; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
}
.step__keys { margin-bottom: 1.4rem; }
.step h3 { font-family: var(--serif); font-weight: 500; font-size: 1.3rem; margin-bottom: .5rem; }
.step p { color: var(--muted); }

/* ---------- Chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: .7rem; margin-bottom: 2.5rem; }
.chips span {
  font-size: .95rem; padding: .55rem 1.1rem; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line-strong); color: var(--text);
  transition: transform .18s ease, border-color .18s ease, color .18s ease;
}
.chips span:hover { color: var(--accent-2); border-color: var(--accent); transform: translateY(-2px); }
.improves__note { max-width: 640px; font-size: 1.12rem; color: var(--muted); font-family: var(--serif); line-height: 1.7; }

/* ---------- Manifesto ---------- */
.manifesto {
  max-width: var(--maxw); margin: 0 auto; padding: 7rem 1.5rem;
  text-align: center;
}
.manifesto p {
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(1.6rem, 4vw, 2.6rem); line-height: 1.4; letter-spacing: -0.02em;
  color: var(--text); margin-bottom: .3rem;
}
.manifesto p:nth-child(even) { color: var(--muted); }
.manifesto__mark { color: var(--accent-2); font-style: italic; }

/* ---------- No AI ---------- */
.no-ai {
  background: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 6rem 1.5rem;
}
.no-ai__inner { max-width: var(--maxw); margin: 0 auto; text-align: center; }
.no-ai .eyebrow--light { color: var(--accent-2); }
.no-ai__title {
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.2; letter-spacing: -0.02em;
  margin: 0 0 1.2rem;
}
.no-ai__lede {
  color: var(--muted); font-size: 1.12rem; line-height: 1.7;
  max-width: 620px; margin: 0 auto 3rem;
}
.no-ai__grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem;
  text-align: left;
}
@media (max-width: 720px) { .no-ai__grid { grid-template-columns: 1fr; } }
.no-ai__item {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 2rem 1.8rem;
  transition: border-color .3s, transform .3s;
}
.no-ai__item:hover { border-color: var(--accent); transform: translateY(-3px); }
.no-ai__badge {
  display: inline-block; text-transform: uppercase; letter-spacing: 0.12em;
  font-size: .72rem; font-weight: 700; color: var(--ink);
  background: var(--accent-2); border-radius: 999px;
  padding: .35rem .9rem; margin-bottom: 1rem;
}
.no-ai__item p { color: var(--muted); font-size: .98rem; line-height: 1.6; margin: 0; }

/* ---------- Privacy ---------- */
.privacy { display: grid; grid-template-columns: 1.3fr 1fr; gap: 3rem; align-items: center; }
@media (max-width: 820px) { .privacy { grid-template-columns: 1fr; } }
.privacy__copy h2 { font-family: var(--serif); font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 400; margin-bottom: 1rem; }
.privacy__copy p { color: var(--muted); font-size: 1.08rem; }
.privacy__list { list-style: none; padding: 0; margin: 0; display: grid; gap: .9rem; }
.privacy__list li { display: flex; align-items: center; gap: .7rem; color: var(--text); }
.privacy__list li::before {
  content: ""; width: 18px; height: 18px; border-radius: 50%;
  background: var(--accent-soft); border: 1px solid var(--accent);
  flex-shrink: 0;
  background-image: linear-gradient(135deg, transparent 45%, var(--accent) 45% 55%, transparent 55%);
}

/* ---------- CTA ---------- */
.cta { position: relative; text-align: center; padding: 8rem 1.5rem 6rem; overflow: hidden; }
.cta::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(50% 60% at 50% 40%, rgba(216,166,87,0.16), transparent 70%);
}
.cta__logo { width: 72px; height: 72px; border-radius: 18px; margin: 0 auto 1.4rem; box-shadow: 0 10px 40px -10px rgba(216,166,87,0.5); }
.cta h2 { font-family: var(--serif); font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 400; margin-bottom: .6rem; }
.cta p { color: var(--muted); font-size: 1.12rem; margin-bottom: 2rem; }
.cta__buttons { display: flex; justify-content: center; gap: 1rem; margin-bottom: 1rem; }
.cta__req { color: var(--faint); font-size: .9rem; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); background: var(--ink-2); }
.footer__inner { max-width: var(--maxw); margin: 0 auto; padding: 2.6rem 1.5rem; display: flex; flex-direction: column; gap: .8rem; }
.footer__brand { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; }
.footer__logo { width: 24px; height: 24px; border-radius: 6px; }
.footer__tag { color: var(--muted); font-size: .95rem; max-width: 40em; }
.footer__links { display: flex; gap: .8rem; align-items: center; font-size: .9rem; }
.footer__links a { color: var(--muted); text-decoration: none; transition: color .2s; }
.footer__links a:hover { color: var(--accent-2); }
.footer__links span { color: var(--faint); }
.footer__legal { color: var(--faint); font-size: .85rem; }

/* ---------- Legal pages ---------- */
.legal { max-width: 760px; margin: 0 auto; padding: 6rem 1.5rem 5rem; }
.legal h1 { font-family: var(--serif); font-size: clamp(2rem, 5vw, 3rem); font-weight: 400; letter-spacing: -0.02em; margin: 0 0 .5rem; }
.legal__updated { color: var(--faint); font-size: .9rem; margin: 0 0 3rem; }
.legal h2 { font-size: 1.25rem; font-weight: 600; margin: 2.5rem 0 .8rem; letter-spacing: -0.01em; }
.legal p { color: var(--muted); line-height: 1.75; font-size: 1rem; margin: 0 0 1rem; }
.legal ul { padding-left: 1.4rem; margin: 0 0 1rem; }
.legal li { color: var(--muted); line-height: 1.75; font-size: 1rem; margin-bottom: .4rem; }
.legal a { color: var(--accent-2); text-decoration: none; }
.legal a:hover { text-decoration: underline; }

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .caret { animation: none; }
  html { scroll-behavior: auto; }
}