/* ============================================================
   Terma — site vitrine
   Palette tirée de src/themes/builtins.js (thème « Terma »).
   L'accent (--accent) est re-teinté en live par la section thèmes,
   exactement comme l'app re-teinte son UI.
   ============================================================ */

:root {
  --bg: #0d0d0d;
  --bg-elevated: #111111;
  --panel: #1a1a1a;
  --panel-2: #161616;
  --titlebar: rgba(20, 20, 20, 0.88);
  --border: #2a2a2a;
  --border-soft: #222222;
  --text: #c8c8c8;
  --text-bright: #ededed;
  --text-dim: #8a8a8a;
  --text-faint: #5a5a5a;
  --accent: #9a6bff;
  --danger: #ff5f56;
  --close-hover: #e81123;

  /* palette terminal Terma */
  --tc-red: #ff5f56;
  --tc-green: #5af78e;
  --tc-yellow: #f3f99d;
  --tc-blue: #57c7ff;
  --tc-magenta: #ff6ac1;
  --tc-cyan: #9aedfe;

  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --titlebar-h: 46px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); color: var(--text-bright); }

code, kbd, pre { font-family: var(--mono); }
a { color: inherit; text-decoration: none; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 28px; }

/* ---------- barre de titre / nav ---------- */

.titlebar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--titlebar-h);
  display: flex;
  align-items: stretch;
  gap: 4px;
  padding: 0 10px 0 14px;
  background: var(--titlebar);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
  z-index: 100;
  user-select: none;
}

.brand { display: flex; align-items: center; gap: 9px; padding-right: 14px; }
.brand-mark { width: 21px; height: 21px; border-radius: 5px; display: block; }
.brand-name {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--text-bright);
  letter-spacing: 0.02em;
}

.tabs { display: flex; align-items: flex-end; gap: 2px; flex: 1; overflow: hidden; }
.tab {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-dim);
  padding: 7px 14px 8px;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}
.tab:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.tab.is-active {
  color: var(--text-bright);
  background: var(--bg);
  border-color: var(--border-soft);
}
.tab-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--text-faint);
  transition: background 0.15s, box-shadow 0.15s;
}
.tab:hover .tab-dot, .tab.is-active .tab-dot {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.tab-accent { color: var(--accent); }

.win-controls { display: flex; align-items: center; gap: 2px; }
.gh-mini {
  display: grid; place-items: center;
  width: 34px; height: 30px;
  color: var(--text-dim);
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.gh-mini:hover { color: var(--text-bright); background: rgba(255, 255, 255, 0.06); }
.wc {
  display: grid; place-items: center;
  width: 38px; height: 30px;
  font-size: 11px;
  color: var(--text-dim);
  border-radius: 6px;
  cursor: default;
  transition: background 0.15s, color 0.15s;
}
.wc:hover { background: rgba(255, 255, 255, 0.06); color: var(--text-bright); }
.wc-close:hover { background: var(--close-hover); color: #fff; }

/* ---------- fenêtres de terminal factices ---------- */

.term-window {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.4),
    0 24px 60px -18px rgba(0, 0, 0, 0.8),
    0 0 90px -30px color-mix(in srgb, var(--accent) 55%, transparent);
}

.tw-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 10px 0 12px;
  background: #141414;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-dim);
}
.tw-logo {
  font-weight: 700;
  font-size: 12px;
  background: linear-gradient(135deg, #c9b3ff, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-right: 4px;
}
.tw-tab {
  padding: 4px 12px;
  border-radius: 6px 6px 0 0;
  border: 1px solid transparent;
  align-self: flex-end;
  border-bottom: none;
}
.tw-tab-active { background: var(--bg-elevated); border-color: var(--border-soft); color: var(--text); }
.tw-spacer { flex: 1; }
.tw-controls { display: flex; gap: 10px; font-size: 10px; color: var(--text-faint); }
.tw-controls .tw-x:hover { color: var(--danger); }

.tw-body { padding: 18px 20px; }
.tw-pre {
  font-size: 13.5px;
  line-height: 1.75;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}

/* couleurs ANSI (palette Terma) */
.c-accent { color: var(--accent); font-weight: 700; }
.c-red { color: var(--tc-red); }
.c-green { color: var(--tc-green); }
.c-yellow { color: var(--tc-yellow); }
.c-blue { color: var(--tc-blue); }
.c-magenta { color: var(--tc-magenta); }
.c-cyan { color: var(--tc-cyan); }
.c-dim { color: var(--text-faint); }

.cursor {
  display: inline-block;
  width: 8px; height: 17px;
  vertical-align: -3px;
  background: var(--text-bright);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--titlebar-h) + 60px) 0 80px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -30%; left: 50%;
  width: 1100px; height: 800px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center,
    color-mix(in srgb, var(--accent) 16%, transparent) 0%,
    transparent 62%);
  pointer-events: none;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 56px;
  align-items: center;
}

.kicker {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 22px;
  letter-spacing: 0.03em;
}

.hero-title {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-bright);
  margin-bottom: 24px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(120deg, #c9b3ff 0%, var(--accent) 55%, #6b3fd4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead { font-size: 17px; color: var(--text-dim); max-width: 46ch; margin-bottom: 34px; }

.cta-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  padding: 13px 22px;
  border-radius: 9px;
  border: 1px solid var(--border);
  transition: transform 0.15s, box-shadow 0.2s, border-color 0.2s, background 0.2s;
  cursor: pointer;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(140deg, color-mix(in srgb, var(--accent) 92%, #fff) 0%, var(--accent) 45%, color-mix(in srgb, var(--accent) 60%, #000) 100%);
  border-color: color-mix(in srgb, var(--accent) 70%, #000);
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
  box-shadow: 0 6px 24px -8px color-mix(in srgb, var(--accent) 75%, transparent);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 32px -8px color-mix(in srgb, var(--accent) 90%, transparent);
}

.btn-ghost { color: var(--text); background: rgba(255, 255, 255, 0.03); }
.btn-ghost:hover { border-color: var(--accent); color: var(--text-bright); }
.btn-arrow { font-size: 12px; color: var(--text-faint); transition: transform 0.15s, color 0.15s; }
.btn-ghost:hover .btn-arrow { transform: translate(2px, -2px); color: var(--accent); }

.btn-xl { font-size: 16px; padding: 17px 30px; border-radius: 11px; }

.dl-meta {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 14px;
  min-height: 18px;
}

.hero-term { transform: rotate(0.6deg); }
.hero-term .tw-body { min-height: 280px; }

.scroll-hint {
  position: absolute;
  bottom: 26px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-faint);
}
.scroll-hint-txt { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.28em; text-transform: uppercase; }
.scroll-hint-bar {
  width: 1px; height: 34px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: hint-drop 1.8s ease-in-out infinite;
}
@keyframes hint-drop {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- sections communes ---------- */

.section-head { max-width: 720px; margin-bottom: 44px; }
.sec-num {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 14px;
  letter-spacing: 0.2em;
}
.sec-num::after { content: " ────"; color: var(--border); }
h2 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--text-bright);
  margin-bottom: 16px;
}
.sec-sub { color: var(--text-dim); font-size: 16px; max-width: 56ch; }
.sec-sub code {
  font-size: 13px;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: 5px;
  padding: 1.5px 7px;
  color: var(--accent);
}

/* ---------- section splits (pinnée) ---------- */

.pin-section { position: relative; }
.pin-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 1120px;
  margin: 0 auto;
  padding: calc(var(--titlebar-h) + 30px) 28px 40px;
}

.split-demo { width: 100%; }
.split-root {
  display: flex;
  height: min(46vh, 420px);
}
.pane { overflow: hidden; min-width: 0; min-height: 0; }
.pane-a { flex: 1 1 0; }
.pane-b {
  flex: 0 0 0%;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border);
  opacity: 0;
}
.pane-b1 { flex: 1 1 0; }
.pane-b2 {
  flex: 0 0 0%;
  border-top: 1px solid var(--border);
  opacity: 0;
}
.pane .tw-pre { padding: 16px 18px; }

.kbd-hints {
  display: flex;
  gap: 26px;
  margin-top: 26px;
  justify-content: center;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-dim);
}
.kbd-hint { display: inline-flex; align-items: center; gap: 6px; opacity: 0.25; transition: opacity 0.3s; }
.kbd-hint.is-on { opacity: 1; color: var(--text); }

kbd {
  display: inline-block;
  font-size: 11px;
  line-height: 1;
  padding: 5px 7px;
  border-radius: 5px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.kbd-hint.is-on kbd { border-color: var(--accent); color: var(--accent); }

/* ---------- section thèmes (pinnée) ---------- */

.themes-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 60px;
  align-items: center;
}

.theme-meter { display: flex; flex-direction: column; gap: 6px; margin-top: 34px; }
.theme-index { font-family: var(--mono); font-size: 12px; color: var(--text-faint); letter-spacing: 0.15em; }
.theme-name {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 30px;
  color: var(--accent);
  transition: color 0.35s;
}
.theme-desc { color: var(--text-dim); font-size: 14.5px; min-height: 44px; }

.theme-dots { display: flex; gap: 10px; margin-top: 20px; }
.theme-dots span {
  width: 26px; height: 4px;
  border-radius: 2px;
  background: var(--border);
  transition: background 0.3s, box-shadow 0.3s;
}
.theme-dots span.is-on { background: var(--accent); box-shadow: 0 0 10px var(--accent); }

/* la fenêtre de démo thèmes est pilotée par des variables --t-* posées en JS */
.theme-demo {
  background: var(--t-bg, var(--bg-elevated));
  border-color: var(--t-border, var(--border));
  transition: background 0.45s, border-color 0.45s;
}
.theme-demo .tw-titlebar {
  background: var(--t-titlebar, #141414);
  border-color: var(--t-border-soft, var(--border-soft));
  color: var(--t-dim, var(--text-dim));
  transition: background 0.45s, border-color 0.45s, color 0.45s;
}
.theme-demo .tw-tab-active { background: var(--t-bg, var(--bg-elevated)); border-color: var(--t-border-soft, var(--border-soft)); color: var(--t-fg, var(--text)); }
.theme-demo .tw-pre, .theme-demo .tw-pre span { transition: color 0.45s; }
.theme-demo .tw-body { min-height: 300px; }

.t-accent { color: var(--t-accent, var(--accent)); font-weight: 700; }
.t-fg { color: var(--t-fg, var(--text)); }
.t-red { color: var(--t-red, var(--tc-red)); }
.t-green { color: var(--t-green, var(--tc-green)); }
.t-yellow { color: var(--t-yellow, var(--tc-yellow)); }
.t-blue { color: var(--t-blue, var(--tc-blue)); }
.t-magenta { color: var(--t-magenta, var(--tc-magenta)); }
.t-cyan { color: var(--t-cyan, var(--tc-cyan)); }
.t-cursor { background: var(--t-fg, var(--text-bright)); }

/* ---------- features ---------- */

.features { padding: 130px 0 90px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border-soft);
  border-left: 1px solid var(--border-soft);
}
.feature {
  padding: 26px 24px 30px;
  border-right: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  background: transparent;
  transition: background 0.25s;
  position: relative;
}
.feature::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 -1px;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transition: transform 0.25s;
}
.feature:hover { background: rgba(255, 255, 255, 0.025); }
.feature:hover::before { transform: scaleY(1); }
.feature h3 {
  font-family: var(--mono);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 10px;
  display: flex;
  gap: 8px;
}
.fx { color: var(--accent); }
.feature p { font-size: 13.5px; color: var(--text-dim); }
.feature p code { font-size: 12px; color: var(--accent); }
.feature kbd { font-size: 10px; padding: 3px 5px; vertical-align: 1px; }

/* ---------- marquee raccourcis ---------- */

.kbd-marquee {
  overflow: hidden;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  padding: 18px 0;
  background: var(--bg-elevated);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.kbd-track {
  display: flex;
  gap: 44px;
  width: max-content;
  animation: marquee 36s linear infinite;
}
.kbd-marquee:hover .kbd-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.kbd-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-dim);
  white-space: nowrap;
}

/* ---------- open source ---------- */

.opensource { padding: 130px 0; }
.os-inner { display: flex; flex-direction: column; }

.os-stats {
  display: flex;
  gap: 0;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 34px;
  width: fit-content;
}
.os-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 22px 38px;
  background: var(--bg-elevated);
}
.os-stat + .os-stat { border-left: 1px solid var(--border-soft); }
.os-stat-value {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 26px;
  color: var(--text-bright);
}
.os-stat-label { font-family: var(--mono); font-size: 11.5px; color: var(--text-faint); letter-spacing: 0.08em; }

.clone-box {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 15px 18px;
  width: fit-content;
  max-width: 100%;
  margin-bottom: 26px;
}
.clone-box code { font-size: 13.5px; color: var(--text); overflow-x: auto; white-space: nowrap; }
.copy-btn {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  flex-shrink: 0;
}
.copy-btn:hover { color: var(--text-bright); border-color: var(--accent); }
.copy-btn.is-copied { color: var(--tc-green); border-color: var(--tc-green); }

.os-gh-btn { width: fit-content; }

/* ---------- téléchargement ---------- */

.download {
  position: relative;
  padding: 150px 0 170px;
  text-align: center;
  overflow: hidden;
  border-top: 1px solid var(--border-soft);
}
.dl-glow {
  position: absolute;
  bottom: -45%; left: 50%;
  width: 1000px; height: 700px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center,
    color-mix(in srgb, var(--accent) 14%, transparent) 0%,
    transparent 60%);
  pointer-events: none;
}
.dl-inner { position: relative; display: flex; flex-direction: column; align-items: center; }
.dl-inner .sec-sub { margin-bottom: 40px; }
.dl-mark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 56px;
  line-height: 1;
  margin-bottom: 28px;
  background: linear-gradient(135deg, #c9b3ff, var(--accent) 60%, #6b3fd4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.build-yourself { margin-top: 46px; width: min(620px, 100%); text-align: left; }
.build-yourself summary {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
  text-align: center;
  list-style: none;
  transition: color 0.15s;
}
.build-yourself summary::before { content: "❯ "; color: var(--accent); }
.build-yourself summary:hover { color: var(--text-bright); }
.build-yourself[open] summary { margin-bottom: 16px; }
.build-yourself pre {
  background: var(--bg-elevated);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 18px 20px;
  font-size: 13px;
  overflow-x: auto;
}

/* ---------- footer ---------- */

.footer { border-top: 1px solid var(--border-soft); padding: 26px 0; }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-faint);
}
.footer-brand { color: var(--text-dim); font-weight: 700; }
.footer a { color: var(--text-dim); }
.footer a:hover { color: var(--accent); }

/* ---------- reveals (état initial posé en JS, pas en CSS :
     si JS ou GSAP ne charge pas, tout reste visible) ---------- */

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero { min-height: auto; padding-bottom: 110px; }
  .themes-wrap { grid-template-columns: 1fr; gap: 40px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .tabs .tab:not(.tab-accent) { display: none; }
  .os-stats { width: 100%; }
  .os-stat { flex: 1; padding: 18px 20px; }
}

@media (max-width: 560px) {
  .feature-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 32px; }
  .cta-row .btn { width: 100%; justify-content: center; }
  .clone-box { width: 100%; }
  .os-stat-value { font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .cursor, .scroll-hint-bar, .kbd-track { animation: none; }
  html { scroll-behavior: auto; }
}