:root {
  --bg: #14110d;
  --bg-2: #1d1812;
  --panel: #100d09;
  --card: #241d16;
  --card-border: #3a2e22;
  --ink: #f3e9d8;
  --muted: #a8967c;
  --accent: #d8a657;
  --green: #6fae5a;
  --amber: #e0a93b;
  --red: #d65a4a;
  --mono: "SF Mono", "JetBrains Mono", "Fira Code", ui-monospace, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--mono);
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 50% -15%, #2a2118 0%, transparent 60%),
    var(--bg);
  line-height: 1.5;
  /* Safety net against any residual horizontal overflow. `clip` (not `hidden`)
     does NOT create a scroll container, so the sticky nav keeps working. */
  overflow-x: clip;
}
h1, h2, h3 { line-height: 1.15; }
a { color: var(--accent); text-decoration: none; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.accent { color: var(--accent); }

/* ── Brand ──────────────────────────────────────────────────────────────── */
.brand-mark { width: 28px; height: 18px; color: var(--accent); flex: none; }
/* The mark IS the <svg> here: size it via .brand-mark, NOT 100% (which, being more
   specific than .brand-mark, blew the logo up to its parent's full width). The
   descendant rule only covers the wrapper case. */
.brand-mark svg { display: block; width: 100%; height: 100%; }
svg.brand-mark { display: block; }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  padding: 9px 14px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.08s ease, filter 0.15s ease, background 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: #1a130a; }
.btn--primary:hover { filter: brightness(1.08); }
.btn--ghost { border-color: var(--card-border); color: var(--ink); }
.btn--ghost:hover { border-color: var(--accent); background: rgba(216, 166, 87, 0.08); }

/* ── Nav ────────────────────────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap; /* never force horizontal scroll: links wrap below if too narrow */
  gap: 10px 16px;
  padding: 10px 24px;
  position: sticky;
  top: 0;
  z-index: 20;
  /* Opaque background (no backdrop-filter blur): blurring under a sticky bar forces
     an expensive re-rasterization on every scroll frame — the main cause of scroll jank. */
  background: var(--bg-2);
  border-bottom: 1px solid #483c30; /* a touch more contrast for definition */
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; }
.nav-links { display: flex; align-items: center; gap: 10px; }
.nav-links a:not(.btn) { color: var(--muted); font-size: 14px; }
.nav-links a:not(.btn):hover { color: var(--ink); }

/* ── Hero ───────────────────────────────────────────────────────────────── */
.hero {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px 24px 18px;
  text-align: center;
}
.hero-copy h1 { font-size: clamp(30px, 4.6vw, 54px); margin: 0 0 18px; letter-spacing: -0.5px; }
.lead { font-size: 17px; color: var(--ink); max-width: 46ch; margin: 0 auto; }
.cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 24px 0 10px; }

/* ── Diptych (scene): Claude session + real Claudy UI ─────────────────────── */
.scene {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: start;
  max-width: 1180px;
  margin: 0 auto;
  padding: 8px 24px 56px;
}
.scene-col { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.scene-cap { text-align: center; font-size: 13px; color: var(--muted); }

/* Several stacked sessions on the left: compact terminals. */
.term--mini + .term--mini { margin-top: 2px; }
.term--mini .term-body { height: 112px; font-size: 12.5px; line-height: 1.5; }
.term--mini .term-title { color: var(--accent); opacity: 0.85; }

.device {
  background: #0d0b08;
  border: 1px solid var(--card-border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 70px -20px rgba(0, 0, 0, 0.7);
  /* Isolate the iframe's continuous repaints from the rest of the page. */
  contain: paint;
}
.device-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 13px;
  background: #1a1610;
  border-bottom: 1px solid var(--card-border);
}
.device-title { margin-left: 8px; font-size: 12.5px; color: var(--muted); }
.device-screen {
  width: 100%;
  height: 480px;
  border: 0;
  display: block;
  background: var(--bg);
  overflow: hidden; /* confine the iframe content, no horizontal bleed on mobile */
}

/* ── Terminal (the star) ────────────────────────────────────────────────── */
.stage { display: flex; flex-direction: column; gap: 10px; }
.term {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 70px -20px rgba(0, 0, 0, 0.7);
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  background: #1a1610;
  border-bottom: 1px solid var(--card-border);
}
.tdot { width: 12px; height: 12px; border-radius: 50%; }
.tdot--r { background: #ec6a5e; }
.tdot--y { background: #f4bf4f; }
.tdot--g { background: #61c554; }
.term-title { margin-left: 8px; font-size: 12.5px; color: var(--muted); }

/* Heads that appear during the demo. */
.crew {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  min-height: 0;
  padding: 0 16px;
  flex-wrap: wrap;
  transition: padding 0.3s ease, min-height 0.3s ease;
}
.crew:not(:empty) { padding: 14px 16px 4px; }

.head {
  --ring: var(--green);
  width: 64px;
  height: 64px;
  flex: none;
  text-align: center;
  animation: head-in 0.4s ease both;
}
.head--mini { width: 34px; height: 34px; }
.head canvas {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
  /* Outline that hugs the silhouette (color = status). */
  filter:
    drop-shadow(0.8px 0 0 var(--ring)) drop-shadow(-0.8px 0 0 var(--ring))
    drop-shadow(0 0.8px 0 var(--ring)) drop-shadow(0 -0.8px 0 var(--ring));
}
.head[data-status="working"] { --ring: var(--green); }
.head[data-status="needs"]   { --ring: var(--red); animation: head-in 0.4s ease both, head-alert 0.9s ease-in-out infinite; }
.head[data-status="done"]    { --ring: var(--green); }
.head[data-status="failed"]  { --ring: var(--red); }
.head[data-status="idle"]    { --ring: var(--muted); }
.head .head-name { font-size: 10px; color: var(--muted); margin-top: 2px; }
@keyframes head-in { from { opacity: 0; transform: translateY(8px) scale(0.8); } }
@keyframes head-alert { 50% { filter: drop-shadow(0 0 7px var(--red)); } }

/* Terminal body: scrolling lines. Flex + justify-end → the latest lines
   stay at the bottom, older ones overflow off the top (clipped): no JS scroll. */
.term-body {
  width: 100%;
  font-size: 13.5px;
  line-height: 1.65;
  padding: 12px 16px 18px;
  height: 432px;
  overflow: hidden;
  overflow-x: auto; /* a stray long token scrolls inside the terminal, not the page */
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  white-space: pre-wrap;
  word-break: break-word;
}
.ln { animation: ln-in 0.18s ease both; }
.ln--prompt { color: var(--ink); }
.ln--prompt .caret { color: var(--accent); }
.ln--ok { color: var(--green); }
.ln--warn { color: var(--red); }
.ln--dim { color: var(--muted); }
.ln--banner { color: var(--accent); }
.ln .cur { display: inline-block; width: 8px; background: var(--accent); animation: blink 1s step-end infinite; }
@keyframes ln-in { from { opacity: 0; } }
@keyframes blink { 50% { opacity: 0; } }

/* GIF / meme slot (homemade placeholder; swappable for a Giphy/Tenor embed). */
.term-gif {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0;
  padding: 6px 12px;
  border: 1px dashed var(--card-border);
  border-radius: 10px;
  background: rgba(216, 166, 87, 0.06);
  font-size: 13px;
  color: var(--amber);
}
.term-gif .emoji { font-size: 20px; animation: mic 0.7s ease both; }
@keyframes mic { from { transform: translateY(-12px) rotate(-20deg); opacity: 0; } }
.stage-hint { text-align: center; }

/* ── Sections ───────────────────────────────────────────────────────────── */
section.steps, section.features, section.download {
  max-width: 1100px;
  margin: 0 auto;
  padding: 56px 24px;
}
/* Skip rendering/painting these static sections while off-screen (big scroll win).
   contain-intrinsic-size keeps the scrollbar stable; `auto` remembers the real size. */
section.steps, section.features, section.download, section.faq, .foot {
  content-visibility: auto;
  contain-intrinsic-size: auto 480px;
}
section h2 { font-size: clamp(22px, 3vw, 32px); margin: 0 0 28px; text-align: center; }

/* ── FAQ (mirrors FAQPage schema) ───────────────────────────────────────── */
.faq { max-width: 820px; margin: 0 auto; padding: 56px 24px; }
.faq-item { border-top: 1px solid var(--card-border); padding: 18px 0; }
.faq-item:first-child { border-top: 0; padding-top: 0; }
.faq-item h3 { margin: 0 0 8px; font-size: 16px; color: var(--accent); }
.faq-item p { margin: 0; font-size: 14px; color: var(--ink); }
.steps-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 0;
  margin: 0;
}
.steps-grid li {
  background: var(--bg-2);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px;
}
.step-n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: #1a130a;
  font-weight: 700;
  margin-right: 8px;
}
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature {
  background: var(--bg-2);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px;
}
.feature h3 { margin: 0 0 8px; font-size: 16px; color: var(--accent); }
.feature p { margin: 0 0 12px; font-size: 14px; }
.feature .quote { font-size: 12.5px; color: var(--muted); font-style: italic; }

/* ── Download ───────────────────────────────────────────────────────────── */
.download { text-align: center; }
.dl-mark { width: 80px; height: 52px; color: var(--accent); margin: 0 auto 6px; }
.dl-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 24px;
  text-align: left;
}
.dl-card {
  background: var(--bg-2);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 22px;
  min-width: 0; /* grid item can shrink below its content → no page-wide overflow */
}
.dl-card h3 { margin: 0 0 12px; color: var(--accent); font-size: 16px; }
.dl-card pre {
  width: 100%; /* the long `curl … | bash` scrolls inside the box, never the page */
  margin: 0 0 8px;
  padding: 12px;
  background: var(--panel);
  border: 1px solid var(--card-border);
  border-radius: 9px;
  overflow-x: auto;
}
.dl-card code { font-size: 13px; color: var(--ink); word-break: break-word; }

/* ── Footer ─────────────────────────────────────────────────────────────── */
.foot {
  text-align: center;
  padding: 36px 24px 48px;
  border-top: 1px solid var(--card-border);
  color: var(--muted);
}
.foot .brand-mark { margin: 0 auto 10px; opacity: 0.8; }
.foot p { margin: 4px 0; font-size: 13px; }

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .scene { grid-template-columns: 1fr; }
  .steps-grid, .feature-grid, .dl-options { grid-template-columns: 1fr; }
  .term-body { height: 300px; }
  .device-screen { height: 440px; }
}

/* Phones: keep the nav on one tight line (brand + the two buttons). The secondary
   "Fonctions" link is dropped (the page scrolls anyway); flex-wrap above is the
   final safety net so nothing ever overflows the viewport. */
@media (max-width: 600px) {
  .nav { padding: 9px 14px; gap: 8px 10px; }
  .nav-links { gap: 8px; }
  .nav-links a:not(.btn) { display: none; }
  .btn { padding: 8px 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .head, .ln, .term-gif .emoji { animation: none !important; }
  .head[data-status="needs"] { animation: none !important; }
  .ln .cur, .ln--prompt .caret { animation: none; }
}