/* ===== Tokens ===== */
:root {
  --paper: #FAF6F0;
  --paper-alt: #F1EAE0;
  --ink: #1B1F23;
  --ink-muted: #5B5650;
  --line: #E4DCCF;
  --human: #CC785C;
  --human-bg: #F3DED4;
  --agent: #1D7A73;
  --agent-bg: #DCEEEC;
  --gold: #C9962C;
  --gold-ink: #4A3A16;
  --radius: 14px;
  --font-display: "Manrope", "Segoe UI", sans-serif;
  --font-body: "Golos Text", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;
  --max-w: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #17140F;
    --paper-alt: #1E1A14;
    --ink: #F3EEE4;
    --ink-muted: #B8AFA0;
    --line: #3A342A;
    --human-bg: #3E2A1F;
    --agent-bg: #10302C;
    --gold-ink: #F1DDA6;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 .5em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.4rem, 5vw + 1rem, 4.2rem); font-weight: 900; letter-spacing: -.03em; }
h2 { font-size: clamp(1.6rem, 2.6vw + 1rem, 2.5rem); font-weight: 800; letter-spacing: -.015em; }
h3 { font-size: 1.1rem; font-weight: 700; }
p { margin: 0 0 1em; color: var(--ink-muted); }

a { color: inherit; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 200;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--agent);
  outline-offset: 2px;
}

/* ===== Reveal on scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-in { opacity: 1; transform: translateY(0); }
.reveal-delay-1.is-in { transition-delay: .15s; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal.is-in { opacity: 1; transform: none; transition: none; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .98rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary {
  background: var(--human);
  color: #fff;
  box-shadow: 0 6px 0 0 #A15A3F;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 0 0 #A15A3F; }
.btn-primary:active { transform: translateY(2px); box-shadow: 0 3px 0 0 #A15A3F; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { background: var(--paper-alt); }
.btn-small { padding: 9px 18px; font-size: .88rem; }
.btn-large { padding: 18px 38px; font-size: 1.12rem; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 16px;
  padding-bottom: 16px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.brand-mark {
  font-family: var(--font-mono);
  font-weight: 600;
  background: var(--ink);
  color: var(--paper);
  border-radius: 8px;
  padding: 4px 8px;
  font-size: .85rem;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
}
.site-nav {
  display: flex;
  gap: 28px;
  font-weight: 600;
  font-size: .95rem;
}
.site-nav a { text-decoration: none; color: var(--ink-muted); }
.site-nav a:hover { color: var(--ink); }

@media (max-width: 780px) {
  .site-nav { display: none; }
}

/* ===== Chapter rail ===== */
.chapter-rail {
  position: fixed;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.chapter-rail a {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 600;
  color: var(--ink-muted);
  text-decoration: none;
  transition: all .2s ease;
}
.chapter-rail a:hover,
.chapter-rail a.is-active {
  border-color: var(--human);
  color: #fff;
  background: var(--human);
  transform: scale(1.12);
}
@media (max-width: 980px) {
  .chapter-rail { display: none; }
}

/* ===== Chapters ===== */
.chapter { position: relative; overflow: hidden; }
.chapter-numeral {
  position: absolute;
  top: -.12em;
  right: -.02em;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(7rem, 20vw, 15rem);
  line-height: 1;
  color: var(--ink);
  opacity: .045;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}
.chapter-numeral--dark { color: var(--paper); opacity: .06; }

.chapter--dark {
  background: var(--ink);
  color: var(--paper);
}
.chapter--dark p { color: color-mix(in srgb, var(--paper) 72%, transparent); }

.grain {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.05) 1px, transparent 0);
  background-size: 3px 3px;
  opacity: .5;
}

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .78rem;
  color: var(--agent);
  font-weight: 600;
  margin-bottom: 14px;
}
.eyebrow--dark { color: #6FD6C9; }

/* ===== Hero ===== */
.hero { padding: 84px 0 60px; }
.hero-glow {
  position: absolute;
  inset: -160px -60px auto -60px;
  height: 640px;
  background:
    radial-gradient(circle at 78% 15%, color-mix(in srgb, var(--human) 34%, transparent) 0%, transparent 58%),
    radial-gradient(circle at 12% 68%, color-mix(in srgb, var(--agent) 28%, transparent) 0%, transparent 58%);
  filter: blur(24px);
  z-index: 0;
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}
.hl { color: var(--human); }
.hero-sub { font-size: 1.18rem; max-width: 46ch; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 30px 0 16px; }
.hero-note { font-size: .86rem; color: var(--ink-muted); font-family: var(--font-mono); }

/* Signature: transcript window */
.transcript-window {
  background: var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 70px -24px rgba(0,0,0,.4), 0 0 0 1px rgba(0,0,0,.04);
  transform: rotate(.6deg);
}
.transcript-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #000000;
}
.transcript-bar .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: #4a463f;
}
.transcript-title {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: #8b8578;
}
.transcript {
  list-style: none;
  margin: 0;
  padding: 20px 18px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: .87rem;
}
.transcript .line {
  display: flex;
  flex-direction: column;
  gap: 4px;
  opacity: 0;
  transform: translateY(6px);
}
.transcript .line.is-visible {
  animation: line-in .4s ease forwards;
}
@keyframes line-in {
  to { opacity: 1; transform: translateY(0); }
}
.transcript .who {
  font-weight: 600;
  font-size: .75rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.transcript .human .who { color: var(--human); }
.transcript .agent .who { color: #4FBFB4; }
.transcript .msg { color: #EDE8DC; line-height: 1.4; }

@media (prefers-reduced-motion: reduce) {
  .transcript .line { opacity: 1; transform: none; animation: none; }
}

/* ===== Sections ===== */
.section { padding: 88px 0; }
.section-alt { background: var(--paper-alt); }
.section-lead { max-width: 640px; font-size: 1.06rem; }

/* Steps (explanation cards) */
.steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.step:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 30px -18px rgba(0,0,0,.25);
  border-color: var(--human);
}
.section-alt .step { background: var(--paper); }
.step-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--agent);
  background: var(--agent-bg);
  border-radius: 8px;
  padding: 3px 9px;
  font-size: .82rem;
  margin-bottom: 12px;
}
.step p { margin-bottom: 0; font-size: .93rem; }

/* File listing (real files from free-product/) — proof strip */
.filelist {
  margin-top: 44px;
  background: var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px -28px rgba(0,0,0,.4);
}
.filelist--compact .filelist-body { padding: 14px 20px 18px; }
.filelist-flat {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: .82rem;
}
.filelist-flat span { color: #8b8578; }
.filelist-flat span.is-prep { color: #6FD6C9; }
.filelist-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #000;
}
.filelist-bar .dot { width: 10px; height: 10px; border-radius: 50%; background: #4a463f; }
.filelist-title {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: #8b8578;
}
.filelist-body { padding: 18px 20px 22px; font-family: var(--font-mono); font-size: .88rem; }
.filelist-cmd { color: #7CD9A8; margin-bottom: 14px; }
.filelist-cmd::before { content: "$ "; color: #8b8578; }

/* Compare */
.compare {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
@media (max-width: 720px) { .compare { grid-template-columns: 1fr; } }
.compare-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
}
.compare-card--vip {
  border: 1px solid var(--gold);
  background: color-mix(in srgb, var(--gold) 7%, var(--paper));
  box-shadow: 0 24px 50px -28px color-mix(in srgb, var(--gold) 60%, transparent);
}
.vip-badge {
  position: absolute;
  top: -13px;
  right: 24px;
  background: var(--gold);
  color: var(--gold-ink);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 4px 10px;
  border-radius: 999px;
}
.compare-price {
  font-family: var(--font-display);
  font-size: 2.3rem;
  font-weight: 900;
  color: var(--ink);
  margin: 4px 0 18px;
  font-variant-numeric: tabular-nums;
}
.compare-card--vip .compare-price { color: var(--gold-ink); }
.compare-card ul { margin: 0 0 16px; padding-left: 20px; }
.compare-card li { margin-bottom: 8px; }
.compare-note { font-size: .88rem; margin-bottom: 0; }

/* Legend (dark chapter) */
.legend-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 860px) { .legend-grid { grid-template-columns: 1fr; } }
.legend-title { font-size: clamp(1.8rem, 3vw + 1rem, 2.7rem); color: var(--paper); }
.legend-text { max-width: 54ch; }
.legend-stats {
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.stat { border-top: 1px solid rgba(255,255,255,.14); padding-top: 18px; }
.stat-value {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 3.2rem;
  line-height: 1;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}
.stat-label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: .82rem;
  color: #6FD6C9;
}

/* FAQ */
.faq-list { margin-top: 32px; display: flex; flex-direction: column; gap: 10px; max-width: 760px; }
.faq-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 4px 20px;
  transition: border-color .2s ease;
}
.faq-item:hover { border-color: var(--human); }
.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  padding: 16px 0;
  list-style: none;
  position: relative;
  padding-right: 30px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 14px;
  font-family: var(--font-mono);
  color: var(--agent);
  font-size: 1.2rem;
}
.faq-item[open] summary::after { content: "\2013"; }
.faq-item p { padding-bottom: 16px; }

/* Final CTA */
.cta-final { text-align: center; padding: 100px 0; }
.cta-final h2 { color: var(--paper); }
.cta-final p { color: color-mix(in srgb, var(--paper) 72%, transparent); }
.cta-final-inner { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.cta-final-note { font-size: .82rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  align-items: center;
  justify-content: space-between;
  font-size: .88rem;
  color: var(--ink-muted);
}
.footer-row nav { display: flex; gap: 20px; }
.footer-row a { text-decoration: none; }
.footer-row a:hover { color: var(--ink); }