:root {
  --bg: #f4f9fc; --card: #ffffff; --fg: #0f2a3d; --muted: #4f6b7d;
  --accent: #1a6fa8; --accent-soft: #e3f0f9; --line: #cfe2ee;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0c1820; --card: #13232e; --fg: #e4eff6; --muted: #9db4c3;
          --accent: #6fb8e6; --accent-soft: #17303f; --line: #24404f; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
       font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif; }
a { color: var(--accent); }
header { background: var(--card); border-bottom: 1px solid var(--line); }
.bar { max-width: 980px; margin: 0 auto; padding: 12px 16px; display: flex; align-items: center;
       gap: 18px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--fg);
         font-weight: 600; margin-right: auto; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.brand small { display: block; font-weight: 400; color: var(--accent); font-size: 12px; line-height: 1; }
nav a { text-decoration: none; font-size: 15px; color: var(--muted); }
nav a[aria-current] { color: var(--accent); font-weight: 600; }
nav { display: flex; gap: 16px; flex-wrap: wrap; }
.langs { font-size: 13px; color: var(--muted); }
main { max-width: 820px; margin: 0 auto; padding: 36px 16px 64px; }
h1 { font-size: 1.9em; line-height: 1.2; margin: 0 0 .3em; }
.lead { color: var(--muted); font-size: 1.08em; }
h2 { font-size: 1.2em; color: var(--accent); margin: 2em 0 .4em; }
h3 { font-size: 1.02em; margin: 1.4em 0 .3em; }
ul, ol { padding-left: 1.3em; } li { margin: .3em 0; }
.hero { background: linear-gradient(rgba(244,249,252,.55), rgba(244,249,252,.92)), url(../img/fond.jpg) center/cover;
        border-radius: 18px; padding: 48px 20px; text-align: center; }
@media (prefers-color-scheme: dark) {
  .hero { background: linear-gradient(rgba(12,24,32,.55), rgba(12,24,32,.9)), url(../img/fond.jpg) center/cover; }
}
.hero img.icon { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 6px 20px rgba(0,0,0,.15); }
.hero h1 { font-size: 2.3em; margin: .4em 0 0; }
.hero .sub { color: var(--accent); letter-spacing: .08em; margin: 0 0 .8em; }
.hero video { width: 100%; max-width: 640px; border-radius: 12px; margin-top: 18px; background: #000; }
.button { display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
          padding: 10px 22px; border-radius: 10px; font-weight: 600; margin-top: 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; margin-top: 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.card h3 { margin-top: 0; color: var(--accent); }
.note { background: var(--accent-soft); border-radius: 12px; padding: 12px 16px; margin: 1.2em 0; }
.draft { background: #fff4d6; color: #6b4b06; border-radius: 12px; padding: 12px 16px; margin-bottom: 1.4em; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .bar { justify-content: space-between; }
@media (max-width: 600px) { nav { gap: 12px; } .hero h1 { font-size: 1.8em; } }