/* Site de présentation de DevTcha : aucune ressource externe */
:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-2: #eef2f7;
  --text: #0f172a;
  --muted: #475569;
  --border: #dbe2ea;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --ok: #16a34a;
  --warn: #ca8a04;
  --err: #dc2626;
  --code-bg: #0f172a;
  --code-text: #e2e8f0;
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #0b1220;
    --surface: #111a2c;
    --surface-2: #17223a;
    --text: #e5ecf5;
    --muted: #9fb0c6;
    --border: #24324d;
    --accent: #60a5fa;
    --accent-text: #0b1220;
    --code-bg: #050a14;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
a { color: var(--accent); }
img { max-width: 100%; height: auto; }
code, pre { font-family: ui-monospace, 'Cascadia Code', Consolas, monospace; font-size: 0.88em; }
:not(pre) > code { background: var(--surface-2); padding: 0.1em 0.4em; border-radius: 6px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--surface); padding: 8px 12px; z-index: 10; }

header.top { border-bottom: 1px solid var(--border); background: var(--surface); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { font-weight: 800; font-size: 20px; text-decoration: none; color: var(--text); display: flex; align-items: center; gap: 10px; }
.brand svg { width: 28px; height: 28px; }
nav.links { display: flex; gap: 18px; flex-wrap: wrap; font-size: 15px; }
nav.links a { color: var(--muted); text-decoration: none; }
nav.links a:hover, nav.links a:focus-visible { color: var(--text); text-decoration: underline; }

.hero { padding: 72px 0 56px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px; align-items: center; }
.hero-mark { width: 200px; height: 200px; filter: drop-shadow(0 18px 30px #4f46e540); }
@media (max-width: 820px) { .hero { grid-template-columns: 1fr; } .hero-mark { display: none; } }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 0 0 18px; letter-spacing: -0.02em; }
.hero p.lead { font-size: 20px; color: var(--muted); max-width: 720px; margin: 0 0 28px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 10px; font-weight: 650; text-decoration: none; border: 1px solid var(--border); color: var(--text); background: var(--surface); cursor: pointer; font-size: 16px; }
.btn.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.install { display: inline-flex; align-items: center; gap: 10px; background: var(--code-bg); color: var(--code-text); border-radius: 10px; padding: 10px 10px 10px 16px; }
.install code { background: none; padding: 0; font-size: 15px; }
.install button { background: #ffffff1a; color: inherit; border: 0; border-radius: 7px; padding: 5px 10px; cursor: pointer; font: inherit; font-size: 13px; }

section { padding: 56px 0; }
section + section { border-top: 1px solid var(--border); }
h2 { font-size: 30px; margin: 0 0 10px; letter-spacing: -0.01em; }
p.sub { color: var(--muted); margin: 0 0 32px; max-width: 760px; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; margin-bottom: 12px; color: #fff; font-weight: 800; }

.figure { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.figure img { display: block; margin: 0 auto; border-radius: 10px; }
.figure figcaption { color: var(--muted); font-size: 14px; margin-top: 10px; text-align: center; }

/* Démo */
.demo { display: grid; gap: 22px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
@media (max-width: 820px) { .demo { grid-template-columns: 1fr; } }
.demo form { display: grid; gap: 14px; }
.demo label { display: grid; gap: 4px; font-weight: 600; font-size: 15px; }
.demo input, .demo textarea, .demo select { font: inherit; font-weight: 400; padding: 9px 11px; border: 1px solid var(--border); border-radius: 9px; background: var(--bg); color: var(--text); }
.demo textarea { min-height: 84px; resize: vertical; }
.note { margin: 14px 0 10px; border-left: 4px solid var(--warn); background: var(--surface-2); padding: 10px 14px; border-radius: 8px; font-size: 14px; color: var(--muted); }
.log { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 14px; }
.log li { background: var(--surface-2); border-radius: 9px; padding: 9px 12px; border-left: 4px solid var(--muted); }
.log li.ok { border-color: var(--ok); }
.log li.bad { border-color: var(--err); }
.log li.info { border-color: var(--accent); }
.row { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.stat { background: var(--surface-2); border-radius: 10px; padding: 10px; text-align: center; }
.stat b { display: block; font-size: 22px; }
.stat span { font-size: 13px; color: var(--muted); }

/* Captures */
.shots { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); }

/* Intégration */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: -1px; }
.tabs button { font: inherit; font-size: 15px; font-weight: 600; padding: 9px 16px; border: 1px solid var(--border); border-bottom: 0; border-radius: 10px 10px 0 0; background: var(--surface-2); color: var(--muted); cursor: pointer; }
.tabs button[aria-selected='true'] { background: var(--code-bg); color: var(--code-text); border-color: var(--code-bg); }
.panel { display: none; }
.panel.active { display: block; }
pre { background: var(--code-bg); color: var(--code-text); padding: 18px; border-radius: 0 var(--radius) var(--radius) var(--radius); overflow-x: auto; margin: 0 0 12px; line-height: 1.5; }
.panel p { color: var(--muted); font-size: 15px; }

details { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; }
summary { font-weight: 650; cursor: pointer; }
details p { color: var(--muted); margin: 10px 0 0; }

footer { border-top: 1px solid var(--border); padding: 32px 0 48px; color: var(--muted); font-size: 15px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

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