:root{--bg:#f6f3ee;--card:#fff;--ink:#1d2428;--muted:#5d676d;--brand:#0f5d73;--brand-d:#0a4456;--accent:#e9f3f6;--line:#ddd6cb;--ok:#1c7a4b;--warn:#a85b00}
@media (prefers-color-scheme:dark){:root{--bg:#14191c;--card:#1c2327;--ink:#eef1f2;--muted:#a3adb2;--brand:#5fc0d9;--brand-d:#8ad3e6;--accent:#1e2c31;--line:#2c373c;--ok:#5ccf93;--warn:#f0a347}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--brand)}img{max-width:100%;height:auto}
.wrap{max-width:900px;margin:0 auto;padding:0 20px}
.top{display:flex;justify-content:space-between;align-items:center;padding:18px 0}
.brand{font-weight:800;letter-spacing:.2px}
.hero{text-align:center;padding:48px 0 36px}
.kicker{font:700 12px/1 system-ui;text-transform:uppercase;letter-spacing:1.4px;color:var(--brand);margin:0 0 14px}
h1{font-size:clamp(30px,5.2vw,48px);line-height:1.12;margin:0 0 18px;letter-spacing:-.5px}
h2{font-size:clamp(23px,3.4vw,31px);line-height:1.2;margin:46px 0 14px;letter-spacing:-.3px}
h3{font-size:19px;margin:22px 0 8px}
.lead{font-size:20px;color:var(--muted);max-width:660px;margin:0 auto 26px}
.btn,button.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:10px;padding:14px 26px;font:700 17px system-ui;text-decoration:none;cursor:pointer}
@media (prefers-color-scheme:dark){.btn,button.btn{color:#0b1316}}
.btn:hover{background:var(--brand-d)}.btn.ghost{background:transparent;color:var(--brand);border:2px solid var(--brand)}
.sub{font-size:14px;color:var(--muted);margin-top:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;margin:18px 0}
.band{background:var(--accent);border-radius:14px;padding:26px;margin:28px 0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:720px){.grid2,.grid3{grid-template-columns:1fr}}
ol.steps{counter-reset:s;list-style:none;padding:0}ol.steps li{counter-increment:s;padding:12px 0 12px 48px;position:relative;border-bottom:1px solid var(--line)}
ol.steps li:before{content:counter(s);position:absolute;left:0;top:12px;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font:700 15px system-ui}
.mods{list-style:none;padding:0}.mods li{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}.mods span{color:var(--muted);white-space:nowrap}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:10px 0}summary{cursor:pointer;font-weight:700}
.price{font-size:46px;font-weight:800;line-height:1}.price s{font-size:24px;color:var(--muted);font-weight:500;margin-left:10px}
.badge{display:inline-block;background:var(--warn);color:#fff;border-radius:99px;padding:4px 12px;font:700 13px system-ui}
.pay input[type=email],.pay input[type=text]{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:17px system-ui;margin:6px 0 12px}
.pay label{font:600 14px system-ui;color:var(--muted)}
.msg{padding:12px 14px;border-radius:10px;margin:12px 0;font-size:15px}.msg.err{background:#fde8e8;color:#8a1c1c}.msg.ok{background:#e4f5ec;color:#15613b}
.tabs{display:flex;gap:8px;margin:6px 0 16px}.tabs button{flex:1;padding:11px;border:2px solid var(--line);background:transparent;color:var(--ink);border-radius:10px;font:700 15px system-ui;cursor:pointer}.tabs button.on{border-color:var(--brand);color:var(--brand)}
.center{max-width:620px;margin:80px auto;padding:0 20px;text-align:center}
figure{margin:22px 0}figure img{border:1px solid var(--line);border-radius:10px;background:#fff}figcaption{font-size:14px;color:var(--muted);margin-top:6px}
video{width:100%;border-radius:12px;margin:12px 0;background:#000}
footer{padding:40px 0;color:var(--muted);font-size:14px;text-align:center}
/* membres */
.members{display:grid;grid-template-columns:290px 1fr;min-height:100vh}
.members aside{background:var(--card);border-right:1px solid var(--line);padding:24px 18px;position:sticky;top:0;align-self:start;height:100vh;overflow:auto}
.members aside .who{font-size:13px;color:var(--muted);margin:2px 0 18px;word-break:break-all}
.members aside h3{font-size:12px;text-transform:uppercase;letter-spacing:1.2px;color:var(--muted)}
.members aside ul{list-style:none;padding:0;margin:0 0 16px}.members aside li a{display:block;padding:9px 10px;border-radius:8px;text-decoration:none;color:var(--ink);font-size:15px;line-height:1.35}
.members aside li a.on,.members aside li a:hover{background:var(--accent);color:var(--brand)}
.side-offer{display:block;margin-top:14px;padding:12px;border-radius:10px;background:var(--brand);color:#fff;text-decoration:none;font:700 14px/1.35 system-ui}
.members main{padding:36px clamp(20px,5vw,64px);max-width:860px}
.lesson h2{margin-top:34px}.lesson ol,.lesson ul{padding-left:22px}.lesson li{margin:6px 0}
.downloads{display:flex;flex-wrap:wrap;gap:10px}.dl{border:2px solid var(--brand);border-radius:10px;padding:10px 14px;text-decoration:none;font:700 14px system-ui}
.next{margin-top:44px}
@media (max-width:820px){.members{grid-template-columns:1fr}.members aside{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}}
/* admin */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}.kpi{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}.kpi b{display:block;font-size:30px}.kpi span{font-size:13px;color:var(--muted)}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line)}th{font-size:12px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted)}
.bars{display:flex;align-items:flex-end;gap:6px;height:140px;margin-top:10px}.bars div{flex:1;background:var(--brand);border-radius:5px 5px 0 0;min-height:3px;position:relative}.bars div:hover:after{content:attr(data-t);position:absolute;bottom:100%;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:3px 7px;border-radius:5px;font-size:12px;white-space:nowrap}