/* calling.shau.fr — mêmes jetons que shau.fr (sombre par défaut, clair via data-theme). */
:root{
  --bg:#05070d; --bg-2:#080b14; --panel:#0c1019; --panel-2:#0e131f;
  --border:#1a2233; --border-soft:#141a28;
  --text:#eef2fb; --text-2:#aab4c8; --text-3:#6b7689;
  --blue:#2f6bff; --blue-2:#4d82ff; --blue-glow:rgba(47,107,255,.55);
  --green:#36d399; --purple:#a679f0; --red:#ff6b6b; --amber:#f0b429;
  --radius:16px; --radius-lg:22px; --maxw:1180px;
  --font:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;
  color-scheme:dark;
}
[data-theme="light"]{
  --bg:#eef1f7; --bg-2:#e7ebf3; --panel:#ffffff; --panel-2:#f6f8fc;
  --border:#d8dfeb; --border-soft:#e4e9f2;
  --text:#0b1220; --text-2:#404b60; --text-3:#6b7689;
  --blue-glow:rgba(47,107,255,.3); --green:#12a574; --red:#d64545;
  color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%}
a{color:var(--blue-2)}
[hidden]{display:none!important}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0}
svg{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:clamp(16px,4vw,32px)}
.narrow{max-width:820px}
.skip{position:absolute;left:-999px;top:8px;background:var(--blue);color:#fff;padding:8px 14px;border-radius:10px;z-index:100}
.skip:focus{left:16px}

/* ── Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:12px;border:1px solid transparent;
  background:var(--blue);color:#fff;font:600 15px/1.2 var(--font);text-decoration:none;cursor:pointer;
  box-shadow:0 8px 28px -10px var(--blue-glow);transition:background .2s,transform .2s,box-shadow .2s}
.btn:hover{background:var(--blue-2);transform:translateY(-1px)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn:focus-visible,.amount:focus-visible,.theme-btn:focus-visible,input:focus-visible{outline:2px solid var(--blue-2);outline-offset:2px}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border);box-shadow:none}
.btn-ghost:hover{background:var(--panel-2)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.btn svg{width:18px;height:18px}

/* ── En-tête */
.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--border-soft)}
.top-in{display:flex;align-items:center;gap:24px;height:66px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-size:17px;font-weight:600;letter-spacing:-.01em}
.brand b{color:var(--blue-2);font-weight:700}
.nav{display:flex;gap:26px;margin-left:auto}
.nav a{color:var(--text-2);text-decoration:none;font-size:14.5px}
.nav a:hover{color:var(--text)}
.top-actions{display:flex;align-items:center;gap:10px}
.theme-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:var(--panel);color:var(--text-2);cursor:pointer;display:grid;place-items:center}
.theme-btn svg{width:18px;height:18px}
.theme-btn .i-sun{display:none}
[data-theme="light"] .theme-btn .i-sun{display:block}
[data-theme="light"] .theme-btn .i-moon{display:none}

.banner{background:color-mix(in srgb,var(--amber) 16%,var(--panel));border-bottom:1px solid var(--border);color:var(--text);text-align:center;padding:12px 16px;font-size:14.5px}
.banner.ok{background:color-mix(in srgb,var(--green) 16%,var(--panel))}

/* ── Hero */
.hero{position:relative;padding-block:clamp(56px,9vw,110px) clamp(56px,8vw,96px);overflow:hidden}
.hero::before{content:"";position:absolute;inset:-30% -10% auto auto;width:720px;height:720px;border-radius:50%;
  background:radial-gradient(closest-side,var(--blue-glow),transparent);opacity:.35;pointer-events:none}
.hero-in{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,5vw,72px);align-items:center}
.pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:var(--panel);font-size:13px;color:var(--text-2);font-weight:500}
.dot{width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 4px color-mix(in srgb,var(--amber) 22%,transparent)}
.hero h1{font-size:clamp(34px,5.2vw,58px);font-weight:750;margin-top:20px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--blue-2),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(16px,1.6vw,18.5px);color:var(--text-2);margin:20px 0 0;max-width:600px}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.fine{font-size:13.5px;color:var(--text-3);margin:16px 0 0}

/* Maquette d'appel */
.mock{margin:0;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;
  box-shadow:0 30px 80px -30px rgba(0,0,0,.55),0 0 0 1px var(--border-soft) inset;position:relative}
.mock-head{display:flex;align-items:center;gap:12px}
.mock-head strong{display:block;font-size:15px}
.mock-head small{color:var(--text-3);font-size:13px}
.live{width:10px;height:10px;border-radius:50%;background:var(--green);flex:none;animation:pulse 1.8s ease-out infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--green) 60%,transparent)}100%{box-shadow:0 0 0 12px transparent}}
.mock-hang{margin-left:auto;width:38px;height:38px;border-radius:50%;background:var(--red);display:grid;place-items:center;color:#fff;flex:none}
.mock-hang svg{width:20px;height:20px;fill:currentColor;stroke:none}
.wave{display:flex;align-items:center;gap:4px;height:54px;margin:18px 0 14px;padding:0 4px}
.wave i{flex:1;border-radius:3px;background:linear-gradient(var(--blue-2),var(--purple));height:20%;animation:wv 1.2s ease-in-out infinite}
.wave i:nth-child(3n){animation-delay:-.3s}.wave i:nth-child(3n+1){animation-delay:-.7s}.wave i:nth-child(4n){animation-delay:-.5s}.wave i:nth-child(5n){animation-delay:-.9s}
@keyframes wv{0%,100%{height:18%}50%{height:92%}}
.mock-block{background:var(--panel-2);border:1px solid var(--border-soft);border-radius:12px;padding:12px 14px;margin-top:10px}
.mock-block p{margin:6px 0 0;font-size:14px;color:var(--text-2);font-style:italic}
.mock-block ul{margin:6px 0 0;padding-left:18px;font-size:14px;color:var(--text-2)}
.mock-block li{margin:2px 0}
.mock-block b{color:var(--text)}
.tag{display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--blue-2)}
.tag-ai{color:var(--purple)}
.mock figcaption{position:absolute;right:16px;bottom:-26px;font-size:12px;color:var(--text-3)}

/* ── Sections */
.sec{padding-block:clamp(64px,9vw,104px)}
.sec-alt{background:var(--bg-2);border-block:1px solid var(--border-soft)}
.kicker{margin:0 0 10px;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--blue-2)}
.sec h2{font-size:clamp(28px,3.6vw,40px);font-weight:720}
.sec-lead{color:var(--text-2);font-size:17px;max-width:760px;margin:16px 0 0}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:color-mix(in srgb,var(--blue) 14%,transparent);color:var(--blue-2);margin-bottom:16px}
.ico svg{width:22px;height:22px}
.card h3{font-size:18px}
.card p{color:var(--text-2);margin:10px 0 0;font-size:15px}

.features{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:40px;background:var(--border);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.feat{background:var(--panel);padding:24px}
.feat h3{font-size:16px}
.feat h3::before{content:"";display:block;width:22px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--blue-2),var(--purple));margin-bottom:14px}
.feat p{color:var(--text-2);font-size:14.5px;margin:8px 0 0}

/* ── Avancement */
.steps{list-style:none;margin:32px 0 0;padding:0;position:relative}
.steps::before{content:"";position:absolute;left:13px;top:14px;bottom:14px;width:2px;background:var(--border)}
.steps li{position:relative;display:flex;gap:18px;padding:12px 0}
.mk{position:relative;z-index:1;flex:none;width:28px;height:28px;border-radius:50%;border:2px solid var(--border);background:var(--bg)}
.done .mk{border-color:var(--green);background:var(--green)}
.done .mk::after{content:"";position:absolute;left:8px;top:4px;width:7px;height:12px;border:solid var(--bg);border-width:0 2.5px 2.5px 0;transform:rotate(45deg)}
.steps b{display:block;font-size:16px}
.steps small{display:block;color:var(--text-2);font-size:14.5px;margin-top:2px}
.steps li:not(.done) b{color:var(--text-2)}
.note{margin:28px 0 0;padding:18px 20px;border-radius:var(--radius);border:1px solid var(--border);background:var(--panel);color:var(--text-2)}

/* ── Participer */
.join{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;margin-top:40px;align-items:start}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);padding:clamp(22px,3vw,34px)}
.panel h3{font-size:22px}
.panel-sub{color:var(--text-2);margin:8px 0 22px;font-size:15px}
.field{display:block;margin-bottom:16px}
.field>span{display:block;font-size:14px;font-weight:550;margin-bottom:6px}
.field em{font-style:normal;color:var(--text-3);font-weight:400}
i[aria-hidden],.req i{color:var(--red);font-style:normal}
input[type=text],input[type=email],input[type=tel],input[type=number]{width:100%;padding:12px 14px;border-radius:11px;border:1px solid var(--border);
  background:var(--panel-2);color:var(--text);font:15px var(--font);transition:border-color .2s}
input:focus{border-color:var(--blue-2)}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.check{display:flex;gap:12px;align-items:flex-start;margin:14px 0;font-size:14.5px;color:var(--text-2);cursor:pointer}
.check input{flex:none;width:19px;height:19px;margin:2px 0 0;accent-color:var(--blue)}
.check small{display:block;margin-top:6px;font-size:12.5px;color:var(--text-3);line-height:1.5}
.btn-block{margin-top:10px}
.form-msg{min-height:22px;margin:12px 0 0;font-size:14.5px;color:var(--text-2)}
.form-msg.ok{color:var(--green)}
.form-msg.err{color:var(--red)}
.req{margin:6px 0 0;font-size:12.5px;color:var(--text-3)}

.panel-don{background:linear-gradient(160deg,color-mix(in srgb,var(--purple) 10%,var(--panel)),var(--panel) 60%)}
.amounts{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:16px}
.amount{padding:12px 6px;border-radius:11px;border:1px solid var(--border);background:var(--panel-2);color:var(--text);font:600 15px var(--font);cursor:pointer;transition:border-color .2s,background .2s}
.amount:hover{border-color:var(--blue-2)}
.amount[aria-checked="true"]{border-color:var(--blue);background:color-mix(in srgb,var(--blue) 18%,var(--panel-2))}
.amount-wrap{position:relative;display:block}
.amount-wrap b{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--text-3);font-weight:500}
.btn-don{background:linear-gradient(90deg,var(--blue),var(--purple))}
.btn-don:hover{background:linear-gradient(90deg,var(--blue-2),var(--purple))}
.don-facts{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
.don-facts li{display:flex;gap:10px;font-size:13px;color:var(--text-3);line-height:1.5}
.don-facts svg{flex:none;width:17px;height:17px;margin-top:1px;color:var(--text-2)}

/* ── Pied */
.foot{padding-block:40px;border-top:1px solid var(--border-soft)}
.foot-in{display:grid;grid-template-columns:1fr auto;gap:18px 32px;align-items:start}
.foot p{margin:8px 0 0;color:var(--text-3);font-size:14px}
.foot a{color:var(--text-2)}
.foot nav{display:flex;flex-wrap:wrap;gap:20px;font-size:14px}
.foot nav a{text-decoration:none}
.foot nav a:hover{color:var(--text)}
.brand-foot{font-size:15px;text-decoration:none}
.legal{grid-column:1/-1;font-size:12.5px!important}

/* ── Responsive */
@media (max-width:980px){
  .hero-in{grid-template-columns:1fr}
  .mock{max-width:520px}
  .features{grid-template-columns:repeat(2,1fr)}
  .join{grid-template-columns:1fr}
  .nav{display:none}
  .top-actions{margin-left:auto}
}
@media (max-width:680px){
  .grid3{grid-template-columns:1fr}
  .features{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr}
  .cta .btn{flex:1 1 100%}
}
@media (max-width:400px){
  .amounts{grid-template-columns:repeat(2,1fr)}
  .top .btn-sm{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .wave i,.live{animation:none}
  .wave i{height:55%}
  .btn:hover{transform:none}
}