/* =============================================================
 * ModelHike — design system
 * Light warm, editorial. Fonts + palette from modelhike.com.
 * ============================================================= */

/* Wremena serif — same CDN used by modelhike.com */
@font-face {
  font-family: 'Wremena';
  src: url('https://cdn.jsdelivr.net/gh/mishamyrt/wremena@master/fonts/WremenaRegular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Wremena';
  src: url('https://cdn.jsdelivr.net/gh/mishamyrt/wremena@master/fonts/WremenaBold.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}

:root {
  /* Light warm palette — copied from modelhike.com */
  --bg:        #ffffff;
  --bg-alt:    #f8f5f0;
  --bg-rise:   #f0ece5;
  --bg-panel:  #f4f1ec;
  --bg-elev:   #eae6de;
  --line:      rgba(10, 17, 40, 0.09);
  --line-2:    rgba(10, 17, 40, 0.16);
  --line-soft: rgba(10, 17, 40, 0.05);

  /* Dark text — modelhike.com --text-primary / --text-secondary */
  --ink:       #0A1128;
  --ink-2:     #1e2d4d;
  --mute:      #4A5568;
  --faint:     #718096;
  --ghost:     #A0AEC0;

  /* Green accent — kept as brand color */
  --add:       #16a34a;
  --add-2:     #15803d;
  --add-bright:#22c55e;
  --add-soft:  rgba(22, 163, 74, 0.10);
  --add-line:  rgba(22, 163, 74, 0.25);
  --add-glow:  rgba(22, 163, 74, 0.35);

  --rem:       #f87171;
  --rem-soft:  rgba(248, 113, 113, 0.10);
  --rem-line:  rgba(248, 113, 113, 0.28);

  --info:      #60a5fa;
  --info-soft: rgba(96, 165, 250, 0.10);
  --info-line: rgba(96, 165, 250, 0.28);

  --warn:      #fbbf24;

  /* type — matches modelhike.com font stack */
  --serif: 'Wremena', 'Playfair Display', Georgia, serif;
  --sans:  'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:  'Geist Mono', 'JetBrains Mono', 'Fira Code', ui-monospace, Menlo, Monaco, Consolas, monospace;

  /* layout */
  --container:  1180px;
  --narrow:     760px;
  --pad-x:      clamp(20px, 4vw, 32px);

  /* motion */
  --ease:       cubic-bezier(0.2, 0.8, 0.2, 1);
  --t:          240ms;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv11', 'ss01', 'ss03';
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
hr { border: 0; }
ul, ol { padding: 0; margin: 0; list-style: none; }
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

::selection { background: #FFD166; color: #0A1128; }

/* ---------- a11y ---------- */
.skip {
  position: fixed; top: 8px; left: 8px;
  padding: 8px 12px;
  background: var(--ink); color: var(--bg);
  border-radius: 8px;
  transform: translateY(-200%); transition: transform var(--t) var(--ease);
  z-index: 100; font-weight: 600;
}
.skip:focus { transform: none; }

/* ---------- background ---------- */
.grid-bg {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(to right, rgba(10,17,40,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10,17,40,0.04) 1px, transparent 1px),
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(255,209,102,0.18), transparent 70%);
  background-size: 56px 56px, 56px 56px, 100% 100%;
  mask-image: linear-gradient(to bottom, black 0%, black 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 0%, black 60%, transparent 100%);
}

/* ---------- container ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  padding-inline: var(--pad-x);
  margin-inline: auto;
  position: relative;
  z-index: 1;
}
.container--narrow { max-width: var(--narrow); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  background: #0A1128;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.nav.is-scrolled { border-bottom-color: rgba(255,255,255,0.12); background: #0A1128; }
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  color: #ffffff;
}
.brand__mark { color: var(--add); }
.brand__name { font-weight: 600; letter-spacing: -0.01em; }
.brand__tag {
  font-family: var(--mono); font-size: 12px; color: rgba(255,255,255,0.38);
  margin-left: 4px;
}
@media (max-width: 640px) { .brand__tag { display: none; } }

.nav__links {
  display: flex; align-items: center; gap: 4px;
}
.nav__links a {
  padding: 8px 12px; border-radius: 8px;
  color: rgba(255,255,255,0.65); font-size: 14px; font-weight: 500;
  transition: color var(--t) var(--ease), background var(--t) var(--ease);
}
.nav__links a:hover { color: #ffffff; background: rgba(255,255,255,0.08); }
@media (max-width: 880px) {
  .nav__links a:not(.btn) { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px;
  border-radius: 9px;
  font-size: 14px; font-weight: 500;
  border: 1px solid transparent;
  transition: transform var(--t) var(--ease), background var(--t) var(--ease),
              border-color var(--t) var(--ease), color var(--t) var(--ease),
              box-shadow var(--t) var(--ease);
  white-space: nowrap;
  font-family: var(--sans);
}
.btn--primary {
  background: #0A1128; color: #ffffff;
  font-family: var(--mono); font-weight: 500;
}
.btn--primary:hover {
  background: #16234a; color: #ffffff;
  box-shadow: 0 0 0 4px rgba(10,17,40,0.12), 0 10px 30px -10px rgba(10,17,40,0.3);
}
.btn--ghost {
  background: #ffffff;
  border-color: rgba(10,17,40,0.18);
  color: var(--ink);
}
.btn--ghost:hover { border-color: rgba(10,17,40,0.3); color: var(--ink); background: var(--bg-alt); }
.btn--lg { padding: 14px 20px; font-size: 15px; border-radius: 11px; }
.btn__prompt { color: var(--add); margin-right: -2px; }
.btn--primary .btn__prompt { color: #4ade80; }

/* ---------- hero ---------- */
.hero {
  padding: clamp(72px, 10vw, 140px) 0 clamp(48px, 6vw, 80px);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  pointer-events: none;
  z-index: -1;
}
/* Soft emerald spotlight behind the headline */
.hero::before {
  inset: -10% -20% auto -20%;
  height: 80%;
  background:
    radial-gradient(ellipse 50% 55% at 50% 28%, rgba(226,249,253,0.9), transparent 60%),
    radial-gradient(ellipse 35% 30% at 22% 55%, rgba(255,233,217,0.7), transparent 65%),
    radial-gradient(ellipse 35% 30% at 80% 50%, rgba(255,209,102,0.3), transparent 65%);
  filter: blur(14px);
}
/* Subtle scanline / horizon under the title */
.hero::after {
  left: 50%; top: clamp(220px, 32vw, 360px);
  width: clamp(420px, 60vw, 760px); height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(to right, transparent, var(--add-line), transparent);
  opacity: 0.6;
}
.hero__inner {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 26px;
  position: relative;
}


.hero__title {
  margin: 8px 0 0;
  display: flex;
  flex-direction: column;
  gap: clamp(10px, 1.4vw, 18px);
  align-items: center;
  text-align: center;
}
/* Setup line */
.hero__kicker {
  font-family: var(--serif);
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 500;
  font-style: italic;
  letter-spacing: -0.005em;
  color: var(--ink);
  opacity: 0.7;
  line-height: 1.4;
  margin: 0;
}
/* The hero punch. Carries the marker. */
.hero__punch {
  font-size: clamp(38px, 6.2vw, 76px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--ink);
  text-wrap: balance;
  font-family: var(--serif);
}
.hero__punch-tail {
  color: var(--mute);
}

.hero__sub {
  max-width: 58ch;
  font-size: clamp(16px, 1.65vw, 20px);
  color: var(--ink-2);
  margin: 0;
  line-height: 1.5;
}
.hero__sub em {
  font-style: normal;
  color: var(--add);
  font-weight: 600;
}

.hero__cta {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin-top: 10px; justify-content: center;
}

/* ---------- terminal — stays dark regardless of page theme ---------- */
.terminal {
  width: 100%;
  max-width: 800px;
  margin-top: 40px;
  background: linear-gradient(180deg, #111113, #0f0f10);
  border: 1px solid #1f1f23;
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.05) inset,
    0 40px 100px -30px rgba(0,0,0,0.35),
    0 0 60px -20px rgba(22, 163, 74, 0.12),
    0 0 0 1px rgba(0,0,0,0.06);
  text-align: left;
}
.terminal::before {
  content: '';
  position: absolute;
  inset: -1px -1px auto -1px;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(22, 163, 74, 0.45), transparent);
  pointer-events: none;
}
.terminal__bar {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid #1f1f23;
  background: linear-gradient(180deg, #16161a, #111113);
}
.terminal__dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: #52525b; display: inline-block;
}
.terminal__dot[data-color="r"] { background: #ff5f57; }
.terminal__dot[data-color="y"] { background: #febc2e; }
.terminal__dot[data-color="g"] { background: #28c840; }
.terminal__title {
  margin-left: 12px;
  font-family: var(--mono); font-size: 12px; color: #71717a;
}
.terminal__body {
  margin: 0; padding: 18px 18px 22px;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.7;
  color: #d4d4d8;
  min-height: 220px;
  white-space: pre-wrap;
}
.terminal__body .ok   { color: #4ade80; }
.terminal__body .info { color: #60a5fa; }
.terminal__body .dim  { color: #71717a; }
.terminal__body .warn { color: #fbbf24; }
.terminal__body .pad  { display: inline-block; min-width: 10px; }
.t-cursor { color: #4ade80; animation: blink 1s steps(1) infinite; margin-left: 2px; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- rule ---------- */
.rule { height: 1px; background: var(--line); margin: 0; border: 0; opacity: 0.6; }
.rule--inset {
  margin: 56px auto 32px;
  max-width: 880px;
  background: linear-gradient(to right, transparent, var(--line), transparent);
}

/* ---------- section head ---------- */
section { padding: clamp(60px, 9vw, 110px) 0; position: relative; }

/* Section background tiers — semantic, not mechanical alternation.
   Base stays navy. "Raised" sections use a noticeable step up.
   "Solution" sections (the answer/fix content) use a warm amber tint
   that echoes modelhike.com's bg-solution warmth, adapted for dark. */

/* Section backgrounds — matching modelhike.com's warm section tiers */
.move, .faq {
  background: #f6f8fb;
  border-top: 1px solid rgba(10, 17, 40, 0.05);
  border-bottom: 1px solid rgba(10, 17, 40, 0.05);
}

/* Solution — warm amber, matches modelhike.com bg-solution #f8ecd5 */
.intent, .output {
  background-color: #f8ecd5;
  background-image:
    radial-gradient(at 4% 16%, rgba(255,255,255,0.8) 0px, transparent 50%),
    radial-gradient(at 90% 85%, rgba(255,209,102,0.4) 0px, transparent 50%);
  border-top: 1px solid rgba(0,0,0,0.03);
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

/* Get started — deep navy bridge into the dark CTA band */
.start {
  background-color: #0A1128;
  background-image:
    radial-gradient(at 12% 20%, rgba(22, 163, 74, 0.18) 0px, transparent 50%),
    radial-gradient(at 88% 80%, rgba(255, 209, 102, 0.10) 0px, transparent 50%);
  color: #ffffff;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.start .eyebrow { color: #ffffff; opacity: 0.55; }
.start .section-head h2 { color: #ffffff; }
.start .btn--ghost {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.18);
  color: #ffffff;
}
.start .btn--ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.32);
  color: #ffffff;
}

/* Problem — matches modelhike.com bg-problem #fff8f6 */
.trap {
  background-color: #fff8f6;
  background-image:
    radial-gradient(at 10% 18%, rgba(255,255,255,0.96) 0px, transparent 54%),
    radial-gradient(at 88% 78%, rgba(255,94,77,0.06) 0px, transparent 46%);
  border-top: 1px solid rgba(10,17,40,0.04);
  border-bottom: 1px solid rgba(10,17,40,0.04);
}

.trap__split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.8fr);
  gap: clamp(36px, 6vw, 72px);
  align-items: center;
  max-width: 980px;
  margin: 48px auto 0;
}
.trap__visual {
  margin: 0;
  position: relative;
  isolation: isolate;
}
.trap__visual::before {
  content: "";
  position: absolute;
  inset: 8% -4% 0;
  z-index: -1;
  background: radial-gradient(circle, rgba(255, 94, 77, 0.14), transparent 62%);
  filter: blur(18px);
}
.trap__visual img {
  width: 100%;
  max-width: 420px;
  margin-inline: auto;
  opacity: 0.96;
  filter: saturate(0.96) contrast(0.98) drop-shadow(0 18px 28px rgba(255, 94, 77, 0.08));
}
@media (max-width: 820px) {
  .trap__split {
    grid-template-columns: 1fr;
  }
  .trap__visual {
    order: -1;
  }
  .trap__visual img {
    max-width: 320px;
  }
}

/* Developer section — warm sage, distinct from problem/solution tiers */
.dev {
  background:
    radial-gradient(circle at 14% 20%, rgba(255, 255, 255, 0.85), transparent 34%),
    radial-gradient(circle at 88% 78%, rgba(22, 163, 74, 0.18), transparent 42%),
    linear-gradient(180deg, #e3f0e3 0%, #f1ead2 100%);
  border-top: 1px solid rgba(22,163,74,0.18);
  border-bottom: 1px solid rgba(22,163,74,0.18);
}

main > .rule { display: none; }
.section-head { margin-bottom: 40px; max-width: 760px; text-align: center; margin-inline: auto; }
/* Eyebrow — uppercase mono, matches heading color */
.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
  opacity: 0.5;
}
.section-head h2 {
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 auto;
  color: var(--ink);
  max-width: 32ch;
  text-wrap: balance;
}
.section-head__sub {
  margin: 16px 0 0;
  color: var(--mute);
  font-size: clamp(15px, 1.4vw, 17px);
  max-width: 62ch;
}
.section-head__sub { margin-inline: auto; }


/* ---------- the law ---------- */
/* Prose sections now sit in the full container; constrain their inner
   content to a comfortable reading width, centered. */
.rethink .section-head,
.rethink .law__split,
.rethink .manifesto,
.intent .section-head,
.intent .diff,
.intent .quote,
.intent .manifesto,
.dev .section-head,
.dev .dev__split,
.dev .manifesto,
.faq .section-head,
.faq .faq__list {
  max-width: 880px;
  margin-inline: auto;
}

.start__inner {
  max-width: 880px;
  margin-inline: auto;
  text-align: center;
}

.prose { color: var(--ink-2); text-align: center; }
.prose p { font-size: clamp(17px, 1.7vw, 21px); line-height: 1.55; margin: 0 0 18px; }
.prose__hl { color: var(--ink); font-weight: 500; }

.law__split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(36px, 6vw, 64px);
  align-items: center;
  max-width: 1060px;
  margin: 48px auto 0;
}
.law__points {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.law__visual {
  margin: 0;
}
.law__visual img {
  width: 100%;
  max-width: 560px;
  margin-inline: auto;
  opacity: 0.96;
  filter: saturate(0.96) contrast(0.98) drop-shadow(0 14px 24px rgba(10,17,40,0.06));
}
@media (max-width: 820px) {
  .law__split { grid-template-columns: 1fr; }
  .law__visual { order: -1; }
  .law__visual img { max-width: 320px; }
}
.manifesto {
  margin-top: 36px;
  font-family: var(--mono);
  font-size: clamp(20px, 2.4vw, 28px);
  letter-spacing: -0.02em;
  color: var(--ink);
  text-align: center;
}
.manifesto__sub {
  display: block;
  font-size: 0.72em;
  color: var(--ink-2);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 0.6em;
}
/* Manifesto highlight — yellow marker, echoes the hero highlight */
.manifesto__hl {
  background-color: rgba(255, 209, 102, 0.55);
  padding: 2px 8px;
  border-radius: 0.5em 0.2em 0.4em 0.2em;
  color: var(--ink);
  font-weight: 700;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* ---------- the move ---------- */
.move__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 16px;
}
@media (max-width: 900px) {
  .move__grid { grid-template-columns: 1fr; }
}
/* Panels — stay dark (code windows on a light page) */
.panel {
  background: #111113;
  border: 1px solid #1f1f23;
  border-radius: 14px;
  overflow: hidden;
  display: flex; flex-direction: column;
  min-height: 520px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.04) inset,
    0 8px 32px -8px rgba(0,0,0,0.2);
}
.panel__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid #1f1f23;
  background: linear-gradient(180deg, #16161a, #111113);
  font-family: var(--mono); font-size: 12px;
}
.panel__file { display: inline-flex; align-items: center; gap: 8px; color: #d4d4d8; }
.panel__file svg { color: #71717a; }
.panel__lang { color: #71717a; text-transform: uppercase; letter-spacing: 0.1em; }
.panel__foot {
  margin-top: auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-top: 1px solid #1f1f23;
  font-family: var(--mono); font-size: 12px; color: #d4d4d8;
  background: #0f0f10;
}
.panel__metric { display: inline-flex; align-items: center; gap: 8px; }
.panel__metric--muted { color: #71717a; }
.dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.dot--g { background: #4ade80; box-shadow: 0 0 0 3px rgba(74,222,128,0.25); }
.dot--b { background: #60a5fa; box-shadow: 0 0 0 3px rgba(96,165,250,0.25); }

.code {
  margin: 0; padding: 22px 24px;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.7;
  color: #d4d4d8; overflow: auto;
  flex: 1;
}
.c-type { color: #c4b5fd; }
.c-key  { color: #4ade80; }
.c-mark { color: #60a5fa; }
.c-dim  { color: #71717a; }
.c-mute { color: #71717a; }
.c-fn   { color: #4ade80; font-weight: 500; }
.c-pipe { color: #60a5fa; }
.c-kw   { color: #fbbf24; }
.c-str  { color: #86efac; }
.c-decor{ color: #a1a1aa; }

.timer {
  font-variant-numeric: tabular-nums;
  color: #4ade80;
  background: rgba(74,222,128,0.12);
  padding: 2px 8px; border-radius: 999px;
  border: 1px solid rgba(74,222,128,0.3);
}

.tree {
  margin: 0; padding: 14px 8px 14px 18px;
  font-family: var(--mono); font-size: 13px; line-height: 1.7;
  flex: 1; overflow: auto;
}
.tree li {
  display: flex; align-items: center; gap: 8px;
  color: #d4d4d8;
  padding: 2px 6px; border-radius: 4px;
  white-space: nowrap;
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}
/* When JS is on and motion is allowed, hide tree items so they can be
   revealed one-by-one. Without JS, they render in their final state. */
.js-anim .tree.is-animating li { opacity: 0; transform: translateY(4px); }
.js-anim .tree.is-animating li.in { opacity: 1; transform: none; }
.tree .ico {
  width: 14px; height: 14px; flex: 0 0 auto;
  color: #71717a;
}
.tree .ico--dir { color: #60a5fa; }
.tree .ico--ts  { color: #60a5fa; }
.tree .ico--md  { color: #a1a1aa; }
.tree .ico--cfg { color: #fbbf24; }
.tree .ico--test{ color: #c4b5fd; }
.tree .indent { color: #3f3f46; user-select: none; }
.tree .badge-add {
  margin-left: auto;
  font-size: 10px;
  color: #4ade80; background: rgba(74,222,128,0.12);
  border: 1px solid rgba(74,222,128,0.3);
  padding: 1px 6px; border-radius: 999px;
  letter-spacing: 0.04em;
}

.move__caption {
  margin-top: 28px;
  font-family: var(--mono);
  color: var(--mute);
  text-align: center;
  font-size: 14px;
  max-width: 880px;
  margin-inline: auto;
}

/* ---------- intent diff ---------- */
.diff {
  border: 1px solid rgba(10, 17, 40, 0.08);
  border-radius: 14px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 1px 2px rgba(10, 17, 40, 0.04), 0 12px 32px -12px rgba(10, 17, 40, 0.08);
}
.diff__row {
  display: grid;
  grid-template-columns: 36px 1fr;
  align-items: start;
  padding: 22px 24px;
  border-top: 1px solid rgba(10, 17, 40, 0.06);
  font-size: 16px;
}
.diff__row:first-child { border-top: 0; }
.diff__row--bad  { background: rgba(255, 94, 77, 0.06); }
.diff__row--good { background: rgba(22, 163, 74, 0.06); }
.diff__sign {
  font-family: var(--mono); font-size: 18px; font-weight: 700;
  text-align: center;
}
.diff__row--bad .diff__sign  { color: #FF5E4D; }
.diff__row--good .diff__sign { color: var(--add-2); }
.diff__row strong { display: block; color: var(--ink); margin-bottom: 4px; font-weight: 700; }
.diff__row span { color: var(--mute); }
.quote {
  margin-top: 28px;
  font-size: clamp(18px, 1.8vw, 22px);
  color: var(--ink-2);
  line-height: 1.5;
  text-align: center;
  font-family: var(--serif);
  font-style: italic;
}
.quote em { color: var(--add-2); font-style: normal; font-weight: 700; }
.quote em + em { color: #FF5E4D; margin-left: 4px; }

/* ---------- you stay a developer ---------- */
.dev__split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  margin: 48px 0 32px;
  align-items: start;
}
@media (max-width: 820px) {
  .dev__split { grid-template-columns: 1fr; gap: 40px; }
}
.dev__col {
  border-top: 1px solid rgba(10, 17, 40, 0.10);
  padding-top: 22px;
}
.dev__col--keep { border-top-color: var(--add); }
.dev__col--drop { border-top-color: rgba(255, 94, 77, 0.5); }

.dev__label {
  display: block;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: none;
  margin-bottom: 18px;
}
.dev__col--keep .dev__label { color: var(--add); }
.dev__col--drop .dev__label { color: #FF5E4D; }

.dev__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.dev__list li {
  font-family: var(--serif);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-weight: 400;
}
.dev__col--drop .dev__list li {
  color: var(--mute);
}
.dev__col--drop .dev__list li strong {
  color: var(--ink);
  text-decoration: line-through;
  text-decoration-color: rgba(255, 94, 77, 0.55);
  text-decoration-thickness: 2px;
  font-weight: 600;
}
.dev__col--keep .dev__list li strong {
  color: var(--ink);
  font-weight: 600;
}

/* ---------- output is yours / cards ---------- */
.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 8px;
}
@media (max-width: 880px) { .cards-3 { grid-template-columns: 1fr; } }

/* modelhike-style underline highlight */
.mh-highlight {
  position: relative;
  display: inline-block;
  white-space: nowrap;
  z-index: 1;
}
.mh-highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: -2px;
  right: -2px;
  height: 38%;
  background-color: #FFD166;
  z-index: -1;
}

.output__split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 48px;
  align-items: start;
}
@media (max-width: 820px) {
  .output__split { grid-template-columns: 1fr; }
}

.output__features {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.output__feature {
  border-left: 3px solid var(--add);
  padding-left: 20px;
}
.output__feature h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--ink);
}
.output__feature p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.95rem;
  line-height: 1.6;
}

.output__code {
  align-self: flex-start;
}
.output__code .terminal {
  background: #1A202C;
  border-radius: 12px;
  padding: 28px 28px;
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
  color: #E2E8F0;
  overflow-x: auto;
}
.output__code .terminal code { background: none; padding: 0; border-radius: 0; }
.output__code .c-comment { color: #A0AEC0; font-style: italic; }
.output__code .c-key    { color: #F6AD55; }
.output__code .c-str    { color: #9AE6B4; }
.card {
  padding: 28px;
  background: #ffffff;
  border: 1px solid rgba(10, 17, 40, 0.08);
  border-radius: 14px;
  position: relative;
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
  box-shadow: 0 1px 2px rgba(10, 17, 40, 0.03);
}
.card:hover {
  border-color: rgba(10, 17, 40, 0.16);
  transform: translateY(-2px);
  box-shadow: 0 1px 2px rgba(10, 17, 40, 0.04), 0 16px 32px -12px rgba(10, 17, 40, 0.10);
}
.card__num {
  font-family: var(--mono); font-size: 12px; font-weight: 700;
  color: var(--add-2);
  margin-bottom: 14px; letter-spacing: 0.08em;
}
.card h3 {
  font-family: var(--serif);
  font-size: 22px; font-weight: 700; margin: 0 0 8px;
  letter-spacing: -0.01em; color: var(--ink);
  line-height: 1.2;
}
.card p { margin: 0; color: var(--mute); font-size: 15px; line-height: 1.6; }

/* ---------- spec-driven trap ---------- */

.fixes-section__split {
  display: grid;
  grid-template-columns: minmax(260px, 0.88fr) minmax(0, 1fr);
  gap: clamp(36px, 6vw, 72px);
  align-items: center;
  max-width: 1040px;
  margin: 48px auto 0;
}
.fixes-section__visual {
  margin: 0;
  position: relative;
  isolation: isolate;
}
.fixes-section__visual::before {
  content: "";
  position: absolute;
  inset: 4% -6% -2%;
  z-index: -1;
  background: radial-gradient(circle, rgba(255, 209, 102, 0.22), transparent 64%);
  filter: blur(20px);
}
.fixes-section__visual img {
  width: 100%;
  max-width: 460px;
  margin-inline: auto;
  opacity: 0.96;
  filter: saturate(0.98) contrast(0.98) drop-shadow(0 18px 28px rgba(255, 209, 102, 0.10));
}
@media (max-width: 820px) {
  .fixes-section__split {
    grid-template-columns: 1fr;
  }
  .fixes-section__visual img {
    max-width: 340px;
  }
}


/* ---------- start / install ---------- */
.start__inner { text-align: center; }
.install {
  margin: 32px auto 0;
  max-width: 560px;
}
.install__copy {
  width: 100%;
  display: flex; align-items: center; gap: 10px;
  padding: 18px 22px;
  background: #0A1128;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  font-family: var(--mono); font-size: 16px; color: #ffffff;
  position: relative;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
  text-align: left;
}
.install__copy:hover { border-color: rgba(255,255,255,0.2); background: #16234a; }
.install__copy code { background: none; padding: 0; }
.install__prompt { color: var(--add); margin-right: 4px; }
.install__icon {
  margin-left: auto;
  color: rgba(255,255,255,0.4);
  display: inline-flex;
}
.install__copied {
  position: absolute; right: 22px;
  font-family: var(--sans); font-size: 13px; color: var(--add);
  opacity: 0; transition: opacity var(--t) var(--ease);
}
.install__copy.is-copied .install__copied { opacity: 1; }
.install__copy.is-copied .install__icon   { opacity: 0; }
.start__links {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center; margin-top: 18px;
}

/* ---------- FAQ ---------- */
.faq__controls {
  display: flex; justify-content: center;
  margin-bottom: 16px;
}
.faq__toggle {
  font-family: var(--mono); font-size: 12px; font-weight: 700;
  color: var(--add-2); background: rgba(22, 163, 74, 0.10);
  border: 1px solid rgba(22, 163, 74, 0.22);
  padding: 6px 16px; border-radius: 999px;
  cursor: pointer; letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background var(--t) var(--ease), border-color var(--t) var(--ease);
}
.faq__toggle:hover { background: rgba(22, 163, 74, 0.16); border-color: rgba(22, 163, 74, 0.35); }
.faq__list { display: grid; gap: 8px; margin-top: 8px; }
.qa {
  background: #ffffff;
  border: 1px solid rgba(10, 17, 40, 0.08);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
  box-shadow: 0 1px 2px rgba(10, 17, 40, 0.03);
}
.qa[open] {
  border-color: rgba(10, 17, 40, 0.16);
  box-shadow: 0 1px 2px rgba(10, 17, 40, 0.04), 0 8px 24px -8px rgba(10, 17, 40, 0.08);
}
.qa summary {
  list-style: none; cursor: pointer;
  padding: 20px 24px;
  font-size: 16px; font-weight: 600; color: var(--ink);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  position: relative;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: '+';
  font-family: var(--mono); font-size: 22px; color: var(--mute);
  transition: transform var(--t) var(--ease), color var(--t) var(--ease);
  line-height: 1; flex: 0 0 auto;
}
.qa[open] summary::after { transform: rotate(45deg); color: var(--add-2); }
.qa p {
  margin: 0;
  padding: 0 24px 20px;
  color: var(--mute); font-size: 15px; line-height: 1.65;
}
.qa p + p { padding-top: 12px; }

/* ---------- closer (CTA + footer share one bg) ---------- */
.closer {
  background-color: #0A1128;
  background-image:
    radial-gradient(at 18% 25%, rgba(22, 163, 74, 0.16) 0px, transparent 55%),
    radial-gradient(at 82% 90%, rgba(255, 209, 102, 0.10) 0px, transparent 55%);
  color: #ffffff;
}

/* ---------- cta band ---------- */
.cta-band {
  color: #ffffff;
  text-align: center;
  padding: 100px 24px 80px;
}
.cta-band__inner {
  max-width: 900px;
}
.cta-band__logo {
  margin-bottom: 24px;
  margin-inline: auto;
}
.cta-band h2 {
  font-family: var(--serif);
  font-size: clamp(26px, 3.6vw, 44px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  white-space: nowrap;
  color: #ffffff;
  margin: 0 0 20px;
}
@media (max-width: 700px) {
  .cta-band h2 { white-space: normal; }
}
.cta-band p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.55);
  margin: 0 0 40px;
  line-height: 1.6;
  white-space: nowrap;
}
@media (max-width: 700px) {
  .cta-band p { white-space: normal; }
}
.btn--github {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #ffffff;
  color: #0A1128;
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s, transform 0.15s;
}
.btn--github:hover {
  background: #f0f0f0;
  transform: translateY(-1px);
}

/* ---------- footer ---------- */
.footer {
  padding: 60px 0 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: transparent;
  color: rgba(255,255,255,0.7);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
}
@media (max-width: 760px) {
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__col--brand { grid-column: span 2; }
}
.footer__col h4 {
  font-family: var(--mono); font-size: 12px; font-weight: 600;
  color: rgba(255,255,255,0.65); text-transform: uppercase; letter-spacing: 0.1em;
  margin: 0 0 14px;
}
.footer__col a {
  display: block;
  color: rgba(255,255,255,0.75); font-size: 14px; padding: 4px 0;
  transition: color var(--t) var(--ease);
}
.footer__col a:hover { color: #ffffff; }
.footer__motto {
  margin: 14px 0 4px;
  font-family: var(--mono); color: rgba(255,255,255,0.7); font-size: 14px;
}
.footer__sub { margin: 0; color: rgba(255,255,255,0.5); font-size: 13px; }
.footer .brand { color: #ffffff; }
.footer .brand__mark { color: #ffffff; }

.footer__bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.10);
  display: flex; justify-content: space-between; align-items: center;
  color: rgba(255,255,255,0.6); font-size: 13px; font-family: var(--mono);
}
.footer__hint { display: inline-flex; align-items: center; gap: 8px; }

/* ---------- reveal animations (only when JS+motion allowed) ---------- */
.js-anim [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
  will-change: opacity, transform;
}
.js-anim [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* Terminal lines: spans inside a <pre> with literal newlines between them.
   JS replaces innerHTML wholesale on takeover; no CSS-level hide needed. */

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .tree li { opacity: 1; transform: none; }
}