/* Spine Planner Mobile — accueil (SaaS) et connexion */
:root{--navy:#061a37;--navy2:#0b2a52;--blue:#1a5c9a;--accent:#38bdf8;--teal:#5eead4;--ink:#0f1f33;--muted:#5b6b7e;--line:#dbe3ec;--bg:#f5f8fc;--soft:#eaf1f9;--r:18px;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink)}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth;scroll-padding-top:68px}
body{margin:0;background:#fff;line-height:1.55;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:1.2px;text-transform:uppercase;color:var(--blue);font-weight:700}
h1,h2,h3{line-height:1.15;margin:0}
h2{font-size:clamp(26px,6.4vw,40px);letter-spacing:-.4px;margin:8px 0 12px}
h3{font-size:19px}
.lead{color:var(--muted);font-size:17px;margin:0 0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:0 24px;border-radius:14px;border:1.5px solid var(--line);background:#fff;color:var(--ink);font-weight:700;font-size:16px;text-decoration:none;cursor:pointer}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--navy)}
.btn.dark{background:var(--navy);border-color:var(--navy);color:#fff}
.btn.ghost{background:transparent;border-color:#ffffff66;color:#fff}
.btn.block{width:100%}
.btn:active{transform:translateY(1px)}

/* barre */
.bar{position:sticky;top:0;z-index:30;background:#061a37f2;backdrop-filter:blur(10px);color:#fff;border-bottom:1px solid #12335f}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{display:flex;align-items:center;gap:9px;text-decoration:none;font-weight:800;font-size:17px}
.logo img{width:30px;height:30px;border-radius:8px}.logo small{font-weight:500;opacity:.6;font-size:11px;letter-spacing:1px;text-transform:uppercase}
.menu{background:none;border:0;color:#fff;font-size:26px;width:44px;height:44px;cursor:pointer}
.bar nav{position:absolute;left:0;right:0;top:60px;background:var(--navy);display:none;flex-direction:column;padding:8px 20px 18px;border-bottom:1px solid #12335f}
.bar nav.open{display:flex}
.bar nav a{padding:13px 0;text-decoration:none;color:#dbe8f8;border-bottom:1px solid #12335f}
.bar nav a.cta{margin-top:12px;border:0;text-align:center;background:var(--accent);color:var(--navy);border-radius:12px;font-weight:800}
@media(min-width:860px){.menu{display:none}.bar nav{position:static;display:flex;flex-direction:row;align-items:center;gap:22px;padding:0;border:0;background:none}.bar nav a{border:0;padding:0;font-size:15px}.bar nav a.cta{margin:0;padding:10px 18px}}

/* hero */
.hero{position:relative;color:#fff;background:var(--navy);overflow:hidden;min-height:calc(100svh - 60px);display:flex;align-items:flex-end}
.slides,.slides img{position:absolute;inset:0;width:100%;height:100%}
.slides img{object-fit:cover;opacity:0;transition:opacity 1.4s;transform:scale(1.04)}
.slides img.on{opacity:.62}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#061a3733 0%,#061a37cc 55%,#061a37 100%)}
.hero .wrap{position:relative;z-index:2;padding-top:90px;padding-bottom:40px;width:100%}
.hero .pill{display:inline-block;border:1px solid #ffffff44;border-radius:30px;padding:5px 14px;font-size:12.5px;background:#ffffff14;margin-bottom:16px}
.hero h1{font-size:clamp(36px,10.5vw,64px);letter-spacing:-1.2px;margin-bottom:14px}
.hero h1 em{font-style:normal;color:var(--teal)}
.hero p{font-size:18px;color:#cfe0f5;max-width:560px;margin:0 0 22px}
.hero .actions{display:flex;flex-direction:column;gap:12px;max-width:380px}
.hero .meta{margin-top:22px;font-size:13px;color:#9db4d1;display:flex;flex-wrap:wrap;gap:6px 18px}
.dots{position:absolute;right:20px;bottom:18px;z-index:3;display:flex;gap:7px}
.dots button{width:9px;height:9px;border-radius:50%;border:0;background:#ffffff55;padding:0}.dots button.on{background:var(--teal);width:22px;border-radius:6px}
@media(min-width:760px){.hero .actions{flex-direction:row;max-width:none}}

/* sections */
.section{padding:64px 0}.section.soft{background:var(--bg)}.section.navy{background:var(--navy);color:#fff}
.section-head{margin-bottom:26px;max-width:640px}.section-head p{color:var(--muted);font-size:17px;margin:0}
.grid3{display:grid;gap:16px}
@media(min-width:820px){.grid3{grid-template-columns:repeat(3,1fr)}}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px}
.feature .no{font-size:12px;letter-spacing:1px;color:var(--blue);font-weight:800}
.feature h3{margin:6px 0 8px}.feature p{margin:0;color:var(--muted)}
.feature .ic{width:46px;height:46px;border-radius:14px;background:var(--soft);display:flex;align-items:center;justify-content:center;color:var(--blue);margin-bottom:12px}
.flow{display:grid;gap:10px;margin:24px 0 0;counter-reset:s}
.flow li{list-style:none;display:flex;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;font-weight:600}
.flow li::before{counter-increment:s;content:counter(s);width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;flex:none}
@media(min-width:820px){.flow{grid-template-columns:repeat(4,1fr)}.flow li{flex-direction:column;text-align:center;padding:18px 12px}}
.split{display:grid;gap:26px;align-items:center}
@media(min-width:820px){.split{grid-template-columns:1fr 1fr;gap:48px}}
.photo{border-radius:var(--r);width:100%;box-shadow:0 18px 50px #061a3722}
.caption{font-size:12px;color:var(--muted);margin:8px 0 0}
.checks{padding:0;margin:16px 0 0;display:grid;gap:10px}.checks li{list-style:none;padding-left:30px;position:relative}.checks li::before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:var(--teal);color:var(--navy);font-weight:900;text-align:center;line-height:22px;font-size:13px}

/* démo */
.demo{background:var(--navy);color:#fff;border-radius:22px;overflow:hidden}
.demo-tabs{display:flex;border-bottom:1px solid #12335f}
.demo-tabs button{flex:1;min-height:52px;background:none;border:0;color:#9db4d1;font-weight:700;font-size:14px;border-bottom:3px solid transparent}
.demo-tabs button.on{color:#fff;border-color:var(--accent)}
.demo-body{padding:18px}
.demo-body h3{margin-bottom:6px}.demo-body p{color:#b6c8df;margin:0 0 14px}
.demo-shot{border-radius:14px;overflow:hidden;border:1px solid #12335f;background:#000}
.demo-shot img{width:100%}
.demo-nav{display:flex;justify-content:space-between;gap:10px;margin-top:14px}
.demo-nav .btn{min-height:44px;padding:0 18px;font-size:14px}
.demo-vals{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.demo-vals span{background:#ffffff14;border:1px solid #ffffff22;border-radius:10px;padding:5px 11px;font-size:13px}.demo-vals b{color:var(--teal)}
.demo-note{font-size:12px;color:#8aa3c4;margin-top:10px}

/* références */
.ref{display:grid;grid-template-columns:44px 1fr;gap:12px;padding:18px 0;border-top:1px solid var(--line)}
.ref>span{font-weight:800;color:var(--blue);font-size:15px}.ref h3{font-size:17px;margin-bottom:4px}.ref p{margin:0;color:var(--muted);font-size:15px}.ref a{color:var(--blue);font-weight:700}

/* tarifs */
.billing{display:inline-flex;border:1.5px solid var(--line);border-radius:14px;padding:4px;background:#fff;margin:6px 0 22px}
.billing button{border:0;background:none;border-radius:10px;min-height:42px;padding:0 18px;font-weight:700;color:var(--muted)}.billing button.active{background:var(--navy);color:#fff}
.price-card{background:#fff;border:1.5px solid var(--line);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:6px}
.price-card.pop{border-color:var(--accent);box-shadow:0 14px 40px #38bdf829;position:relative}
.price-card .tag{position:absolute;top:-12px;right:18px;background:var(--accent);color:var(--navy);font-size:12px;font-weight:800;border-radius:20px;padding:3px 12px}
.price{font-size:42px;font-weight:800;letter-spacing:-1px}.price small{font-size:15px;font-weight:600;color:var(--muted);letter-spacing:0}
.price-card p{margin:0;color:var(--muted)}
.price-card ul{margin:10px 0 16px;padding:0;display:grid;gap:8px}.price-card li{list-style:none;padding-left:26px;position:relative;font-size:15px}.price-card li::before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:900}
.price-card .btn{margin-top:auto}
.fine{font-size:12.5px;color:var(--muted);margin-top:18px}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin:10px 0;padding:0 18px}
.faq summary{min-height:56px;display:flex;align-items:center;font-weight:700;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"+";margin-left:auto;font-size:22px;color:var(--blue)}
.faq details[open] summary::after{content:"–"}.faq details p{margin:0 0 16px;color:var(--muted)}

.final{background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;text-align:center;padding:70px 0}
.final p{color:#b6c8df;max-width:520px;margin:0 auto 24px}
.final .actions{display:flex;flex-direction:column;gap:12px;max-width:340px;margin:0 auto}
footer{background:#041227;color:#8aa3c4;font-size:13px;padding:34px 0 44px}
footer .logo{color:#fff;margin-bottom:10px}footer p{margin:6px 0}footer a{color:#cfe0f5}

/* connexion */
body.auth{min-height:100svh;background:var(--navy);display:flex;flex-direction:column}
.auth-bg{position:fixed;inset:0;z-index:0}.auth-bg img{width:100%;height:100%;object-fit:cover;opacity:.28}.auth-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#061a37 0%,#061a37cc 40%,#061a37 100%)}
.auth-top{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;padding:16px 20px;color:#fff}
.auth-top a{text-decoration:none;color:#cfe0f5;font-size:14px}
.auth-card{position:relative;z-index:2;margin:auto;width:min(440px,calc(100% - 32px));background:#fff;border-radius:22px;padding:22px 22px 26px;box-shadow:0 30px 80px #0008;margin-bottom:28px}
.auth-card h1{font-size:25px;margin:0 0 4px}.auth-card .sub{color:var(--muted);margin:0 0 16px;font-size:15px}
.tabs2{display:flex;background:var(--bg);border-radius:13px;padding:4px;margin-bottom:18px}
.tabs2 button{flex:1;min-height:44px;border:0;background:none;border-radius:10px;font-weight:700;color:var(--muted);font-size:15px}.tabs2 button.on{background:#fff;color:var(--ink);box-shadow:0 2px 8px #0002}
.fld{display:flex;flex-direction:column;gap:5px;margin-bottom:13px}.fld span{font-size:13px;font-weight:700;color:var(--muted)}
.fld input,.fld select{min-height:50px;border:1.5px solid var(--line);border-radius:12px;padding:0 14px;font-size:16px;background:#fff;width:100%}
.fld input:focus,.fld select:focus{outline:2px solid var(--accent);border-color:var(--accent)}
.pw{position:relative}.pw button{position:absolute;right:6px;top:5px;width:42px;height:40px;border:0;background:none;font-size:18px;color:var(--muted)}
.chk{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);margin:2px 0 16px}.chk input{width:20px;height:20px;margin-top:2px;accent-color:var(--blue);flex:none}
.msg{border-radius:12px;padding:11px 14px;font-size:14px;margin:0 0 14px}.msg.err{background:#fef2f2;color:#991b1b;border:1px solid #fca5a5}.msg.info{background:#eff6ff;color:#1e3a8a;border:1px solid #bfdbfe}
.prov{font-size:12px;color:var(--muted);text-align:center;margin-top:14px}