:root { color-scheme:dark; --bg:#07121e; --fg:#f2f7fc; --muted:#a6b8c8; --edge:#304253; --card:#111f2c; --surface:#162638; --aqua:#5fe1d0; --blue:#65abfb; --focus:#ffda70; }
    * { box-sizing:border-box; }
    html { scroll-behavior:smooth; }
    body { margin:0; min-height:100vh; font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; background:radial-gradient(1100px 680px at 80% -20%,#174866aa,transparent 65%),radial-gradient(600px 490px at 0 55%,#16464155,transparent 68%),var(--bg); color:var(--fg); line-height:1.55; }
    a { color:var(--aqua); }
    button,a { -webkit-tap-highlight-color:transparent; }
    :focus-visible { outline:3px solid var(--focus); outline-offset:4px; }
    .wrap { width:min(880px,calc(100% - 36px)); margin-inline:auto; }
    header { padding:25px 0 18px; border-bottom:1px solid #ffffff13; }
    .head { display:flex; justify-content:space-between; align-items:center; gap:18px; }
    .brand { display:flex; gap:12px; align-items:center; text-decoration:none; color:var(--fg); font-size:25px; font-weight:850; letter-spacing:-.8px; }
    .brandMark { width:39px;height:39px;display:grid;place-items:center;background:linear-gradient(135deg,#64dfd0,#427be2);color:#082334;border-radius:12px;font-size:20px;box-shadow:0 5px 32px #41d9d123; }
    .nav { display:flex; gap:15px; flex-wrap:wrap; }
    .nav a { color:var(--muted); text-decoration:none; font-size:14px; font-weight:650; }
    .nav a:hover {color:#fff;}
    main { padding:44px 0 80px; }
    .eyebrow { display:inline-flex; align-items:center; gap:7px; padding:5px 11px; background:#1e4246; color:#aafcf2; border:1px solid #3b7678; border-radius:999px; font-size:12px; letter-spacing:.5px; font-weight:750; text-transform:uppercase; }
    h1 { margin:16px 0 12px; font-size:clamp(32px,5.4vw,50px); line-height:1.11; font-weight:850; letter-spacing:-1.7px; }
    h2 { margin:0 0 10px; font-size:clamp(23px,3.8vw,29px); letter-spacing:-.7px; }
    h3 { font-size:18px; letter-spacing:-.3px; margin:0 0 9px; }
    p { margin:0 0 16px; }
    .intro { color:var(--muted); font-size:17px; max-width:690px; }
    .muted { color:var(--muted); }
    .progress { margin:30px 0 22px;display:flex;gap:8px; }
    .progress > div { height:5px; flex:1; background:#223347; border-radius:8px; }
    .progress > div.done { background:linear-gradient(90deg,#48b8d7,#5fe1d0); }
    .section { border:1px solid var(--edge); background:#102030d9; padding:26px; border-radius:22px; box-shadow:0 19px 55px #00000020; }
    .options { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; margin:20px 0 0; }
    .opt { text-align:left; background:var(--surface); color:var(--fg); border:1px solid #3a5366; border-radius:17px; padding:22px 19px; cursor:pointer; display:flex; flex-direction:column; gap:7px; min-height:145px; transition:transform .15s,background .15s,border-color .15s; font:inherit; }
    .opt:hover { transform:translateY(-2px); background:#20374c; border-color:var(--aqua); }
    .opt .emoji { font-size:32px; line-height:1.2; }
    .opt strong { font-size:17px; }
    .opt small { color:var(--muted); font-size:12px; }
    .actions { margin-top:25px; display:flex; gap:10px; align-items:center; flex-wrap:wrap; }
    .btn { border:1px solid #4f687b; background:#263b50; color:#f7fcff; padding:11px 17px; border-radius:12px; text-decoration:none; font-size:14px; font-weight:750; cursor:pointer; display:inline-flex; align-items:center; justify-content:center; gap:8px; min-height:45px; font-family:inherit; }
    .btn.primary { border-color:transparent; background:linear-gradient(110deg,#66e6d6,#73b9f7); color:#061827; }
    .btn:hover { filter:brightness(1.09); }
    .text-btn { color:var(--muted); text-decoration:underline; border:0; background:transparent; padding:9px 0; cursor:pointer; font:inherit; }
    .card { padding:22px; margin-top:18px; background:var(--surface); border:1px solid #344b5f; border-radius:17px; }
    .recommended { border:1px solid #40847c; background:linear-gradient(140deg,#174142b5,#142b3c); }
    .tag { font-size:12px; font-weight:850; color:var(--aqua); text-transform:uppercase; letter-spacing:.5px; }
    .mini { padding:15px 18px; border-radius:13px; background:#102030; border:1px solid #354a5b; margin-top:14px; }
    .mini p:last-child, .card p:last-child { margin-bottom:0; }
    .steps { list-style:none; counter-reset:steps; padding:0; margin:18px 0 4px; }
    .steps li { counter-increment:steps; position:relative; padding:2px 0 16px 43px; }
    .steps li::before {content:counter(steps); position:absolute; top:0;left:0;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:#204d55;color:#c7fff8;font-weight:800;font-size:13px;}
    .steps li:last-child{padding-bottom:2px;}
    .note {border-left:3px solid #73d5cd; padding:12px 15px; background:#15383ba0; color:#d5eeef; font-size:14px; border-radius:0 9px 9px 0; margin-top:20px; }
    .note.warn { border-color:#e0b76b; background:#3d3322a0; color:#f8ebd0; }
    .url {overflow-wrap:anywhere;display:block;padding:13px 15px;background:#091b29;border:1px solid #355064;border-radius:11px; font-size:15px; color:#e8f8ff; user-select:all; }
    .grid2{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
    .quick {display:flex;align-items:center;justify-content:space-between;gap:12px; padding:15px 17px; margin-top:13px; background:#102333; border:1px solid #344a5b; border-radius:14px; }
    .quick p {margin:0; font-size:14px;}
    .quick a {white-space:nowrap;}
    .foot {margin-top:30px;padding-top:22px;border-top:1px solid #304253;font-size:13px;color:var(--muted);}
    footer { padding:25px 0 40px; color:#8fa5b5; font-size:12px; border-top:1px solid #ffffff13; }
    .hidden{display:none !important;}
    @media(max-width:650px) { .wrap{width:min(100% - 26px,880px);} .head{align-items:flex-start; flex-wrap:wrap;} .nav{gap:14px;} main{padding-top:30px;} .options{grid-template-columns:1fr;} .opt{min-height:90px;flex-direction:row;align-items:center;gap:15px;} .opt small{display:none;} .section{padding:19px;} .grid2{grid-template-columns:1fr;} .quick{flex-wrap:wrap;} .quick a{white-space:normal;} }
    @media(prefers-reduced-motion:reduce) { html{scroll-behavior:auto;} .opt{transition:none;} }
  
/* Liens de navigation et choix statiques, utilisables sans JavaScript */
a.opt { text-decoration:none; color:var(--fg); }
a.opt:focus-visible { outline:3px solid var(--focus); }
.nav a[aria-current="page"] { color:var(--fg); text-decoration:underline; text-decoration-color:var(--aqua); text-underline-offset:6px; }
.breadcrumb { font-size:13px; margin-bottom:20px; color:var(--muted); }
.breadcrumb a { color:var(--aqua); text-decoration:none; }
.breadcrumb a:hover { text-decoration:underline; }
.note a { text-decoration:underline; }