/* Tunelink · site public. Blanc, noir, bleu ciel ; tout en Inter. */
:root{
  --t:#000;--t2:#0b1220;--mut:rgba(0,0,0,.6);--mut2:rgba(0,0,0,.45);--line:#e5e7eb;--soft:#f8fafc;
  --sky:#0ea5e9;--sky2:#38bdf8;--sky3:#0284c7;--sky-s:#f0f9ff;--sky-b:#bae6fd;
  --grad:linear-gradient(180deg,#38bdf8 0%,#0ea5e9 55%,#0284c7 100%);
  --glow:0 8px 20px -6px rgba(14,165,233,.5),inset 0 1px 0 rgba(255,255,255,.45),0 0 0 1px rgba(3,105,161,.25);
  --ok:#16a34a;--ko:#dc2626;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.5 Inter,ui-sans-serif,system-ui,sans-serif;color:var(--t);background:#fff;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1024px;margin:0 auto;padding:0 32px}
.muted{color:var(--mut)}.small{font-size:13px}.c{text-align:center}
.ic{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
h1,h2,h3,h4{margin:0;color:var(--t)}
h1{font-size:60px;line-height:1;font-weight:700;letter-spacing:-1.5px}
h2{font-size:48px;line-height:1.02;font-weight:600;letter-spacing:-1.2px}
h3{font-size:22px;line-height:1.2;font-weight:600;letter-spacing:-.4px}
.hl{color:var(--sky)}
.lead{font-size:18px;line-height:1.62;color:var(--mut);margin:22px 0 0}
.lead.narrow{max-width:640px;margin-left:auto;margin-right:auto}
.kicker{display:block;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--sky);margin-bottom:14px}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#4ade80;box-shadow:0 0 0 3px rgba(74,222,128,.25)}

/* logo */
.logo{display:inline-flex;align-items:center;gap:8px}
.logo .mark{width:24px;height:24px;fill:currentColor}.logo .mark .hi{fill:var(--sky)}
.logo .wm{font:700 19px/1 Inter;letter-spacing:-.5px;display:flex;flex-direction:column}
.logo .wm small{font:500 11px Inter;letter-spacing:0;color:var(--mut2);margin-top:3px}

/* boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--grad);color:#fff;border:0;padding:10px 20px;border-radius:999px;font:600 15px Inter;cursor:pointer;white-space:nowrap;box-shadow:var(--glow);transition:filter .15s,transform .15s}
.btn:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn.ghost{background:#fff;color:var(--t);box-shadow:inset 0 0 0 1px var(--line),0 1px 2px rgba(0,0,0,.05)}.btn.ghost:hover{box-shadow:inset 0 0 0 1px #cbd5e1}
.btn.white{background:#fff;color:var(--sky3);box-shadow:0 8px 20px -6px rgba(0,0,0,.25)}
.btn.wide{width:100%}

/* bandeau d'annonce */
.announce{background:var(--sky);color:#fff;text-align:center;font-size:14px;padding:9px 16px}
.announce b{font-weight:700}.announce a{text-decoration:underline;text-underline-offset:3px;margin-left:8px;font-weight:600}
.announce .dot{margin-right:8px;vertical-align:1px}

/* navigation */
.nav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.85);backdrop-filter:saturate(1.5) blur(12px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:40px;height:76px;max-width:1040px;padding:0 24px}
.nav .links{display:flex;gap:28px;font-size:15px;font-weight:500}.nav .links a{color:#111}.nav .links a:hover{color:var(--sky)}
.nav .cta{margin-left:auto;display:flex;align-items:center;gap:18px}.nav .lnk{font-size:15px;font-weight:500}
.nav .btn{padding:8px 16px;font-size:14px;border-radius:13px}
.burger{display:none;background:none;border:0;width:38px;height:38px;flex-direction:column;justify-content:center;gap:6px;cursor:pointer}
.burger i{display:block;height:2px;background:#000;border-radius:2px}

/* cadre : fines lignes verticales de part et d'autre du contenu */
.frame{position:relative;max-width:1024px;margin:0 auto;border-left:1px solid var(--line);border-right:1px solid var(--line)}
.frame .wrap{padding-left:40px;padding-right:40px}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--line) 15%,var(--line) 85%,transparent);margin:0 -1px}
.pad{padding-top:110px;padding-bottom:110px}

/* héros */
.hero{padding:72px 0 0;text-align:center;overflow:hidden}
.badge{display:inline-flex;align-items:center;gap:8px;background:#0b1220;color:#fff;font-size:12.5px;font-weight:600;padding:6px 12px;border-radius:999px;margin-bottom:26px}
.hero .lead{max-width:600px;margin:24px auto 0}
.sitefield{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 6px 6px 18px;max-width:560px;margin:34px auto 0;box-shadow:0 10px 30px -12px rgba(15,23,42,.18)}
.sitefield:focus-within{border-color:var(--sky2);box-shadow:0 0 0 4px rgba(14,165,233,.15)}
.sitefield .ic{color:var(--mut2)}
.sitefield input{flex:1;border:0;outline:none;font:400 17px Inter;padding:8px 2px;background:none;min-width:0;color:var(--t2)}
.micro{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:4px 6px;font-size:13.5px;color:var(--mut);margin:16px 0 0}.micro .ic{width:15px;height:15px;color:var(--sky)}.micro span{margin:0 4px}
.engines{display:flex;justify-content:center;gap:18px;margin-top:26px;font-size:14px;font-weight:600}.engines span{display:inline-flex;align-items:center;gap:7px}
.showcase{position:relative;margin:56px -24px 0;padding:44px 44px 0;border-radius:24px 24px 0 0;
  background:linear-gradient(180deg,rgba(255,255,255,0) 70%,#fff 100%),repeating-linear-gradient(0deg,transparent 0 37px,rgba(14,165,233,.08) 37px 38px),repeating-linear-gradient(90deg,transparent 0 37px,rgba(14,165,233,.08) 37px 38px),linear-gradient(180deg,#eef7fd,#f7fbfe)}
.shotframe{border-radius:16px;overflow:hidden;box-shadow:0 40px 80px -30px rgba(15,23,42,.35),0 0 0 1px rgba(15,23,42,.08)}
.shotframe img,.fshot img,.shotmini img{display:block;width:100%;height:auto}
.cap{display:block;font-size:12.5px;color:var(--mut2);padding:14px 0 30px}

/* moteurs */
.eng{display:inline-flex;width:22px;height:22px;border-radius:7px;background:var(--c);align-items:center;justify-content:center;flex:none}
.eng svg{width:13px;height:13px;fill:none;stroke:#fff;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.eng.gemini{background:linear-gradient(135deg,#4285f4,#9b72cb 60%,#d96570)}.eng.gemini svg{fill:#fff;stroke:none}

/* conversation d'exemple */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split h2{font-size:40px;letter-spacing:-1px}
.chat{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 60px -30px rgba(15,23,42,.25);padding:18px;font-size:14px}
.chead{display:flex;align-items:center;gap:8px;margin-bottom:14px}.tagx{margin-left:auto;font-size:11.5px;color:var(--mut2);background:var(--soft);border-radius:6px;padding:2px 8px}
.chat .q{background:#0b1220;color:#fff;border-radius:14px 14px 4px 14px;padding:10px 14px;margin-left:auto;max-width:86%;width:fit-content}
.chat .a{margin-top:14px;background:var(--soft);border-radius:14px;padding:14px}
.chat .a p{margin:0 0 8px;color:var(--mut)}
.chat ol{list-style:none;margin:0;padding:0}.chat li{display:flex;align-items:center;gap:8px;padding:6px 0;flex-wrap:wrap}
.chat li .ic{width:15px;height:15px;color:var(--ok)}.chat li span{color:var(--mut2);font-size:13px}
.warn{display:flex;align-items:center;gap:7px;margin-top:12px;background:#fff7ed;color:#c2410c;border:1px solid #fed7aa;border-radius:10px;padding:7px 10px;font-size:13px;font-weight:500}.warn .ic{width:15px;height:15px}

/* étapes */
.steps3{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin-top:56px;text-align:left}
.steps3 .n{display:block;font-size:13px;font-weight:600;color:var(--sky);margin-bottom:12px}
.steps3 p{margin:0;font-size:17px;line-height:1.55;color:var(--mut)}.steps3 b{color:var(--t);font-weight:600}

/* fonctionnalités */
.feat{display:grid;grid-template-columns:.9fr 1.3fr;gap:44px;align-items:center;margin-top:72px}
.feat.rev{grid-template-columns:1.3fr .9fr}.feat.rev .ftext{order:2}
.fnum{display:block;font-size:13px;font-weight:600;color:var(--sky);margin-bottom:10px}
.ftext p{color:var(--mut);font-size:16.5px;line-height:1.6;margin:12px 0 0}
.fshot{border-radius:14px;overflow:hidden;border:1px solid var(--line);box-shadow:0 30px 60px -30px rgba(15,23,42,.28)}
.ticks{list-style:none;padding:0;margin:18px 0 0}.ticks li{display:flex;gap:9px;padding:5px 0;font-size:15px}.ticks .ic{color:var(--sky);width:17px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);margin-top:80px;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.mini{padding:26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.mini .ic{color:var(--sky);width:22px;height:22px}.mini h4{font-size:16px;font-weight:600;margin:12px 0 6px}.mini p{margin:0;color:var(--mut);font-size:14.5px;line-height:1.55}

/* défilé de prompts */
.ticker{margin-top:48px;display:flex;flex-direction:column;gap:14px;mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);overflow:hidden}
.trow{overflow:hidden}.track{display:flex;gap:14px;width:max-content;animation:scroll 60s linear infinite}
.trow.rev .track{animation-direction:reverse;animation-duration:70s}
.tp{display:inline-flex;align-items:center;gap:9px;border:1px solid #111;border-radius:999px;padding:8px 16px 8px 9px;font-size:14px;font-weight:500;white-space:nowrap;background:#fff}
.tp .eng{width:20px;height:20px;border-radius:6px}
@keyframes scroll{to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.track{animation:none}}

/* positions (rapport) */
.pos{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:26px;padding:0 7px;border-radius:7px;font:700 12.5px Inter}
.p-1{background:#0fae74;color:#fff}.p-2{background:#5fd3a3;color:#063b27}.p-3{background:#bdf0d8;color:#0a5a3b}.p-5{background:#fff0c2;color:#7a5200}.p-far{background:#fde1d4;color:#9a3412}.p-none{background:#f1f5f9;color:#94a3b8}

/* tarifs */
.pricing h2{margin-bottom:6px}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:48px 0 18px;text-align:left}
.plan{border:1px solid var(--line);border-radius:20px;padding:26px;position:relative;display:flex;flex-direction:column;background:#fff}
.plan.best{border-color:var(--sky);box-shadow:0 0 0 1px var(--sky),0 30px 60px -30px rgba(14,165,233,.45)}
.plan h3{font-size:20px}.plan>.muted{font-size:14.5px;margin:6px 0 0}
.price{font-size:44px;font-weight:700;letter-spacing:-1.5px;margin:18px 0 20px}.price small{font-size:14px;font-weight:500;letter-spacing:0;color:var(--mut)}
.plan ul{list-style:none;padding:0;margin:22px 0 0}.plan li{display:flex;gap:9px;padding:6px 0;font-size:14.5px}.plan li .ic{color:var(--sky);width:17px}
.ribbon{position:absolute;top:-12px;left:26px;background:var(--grad);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px}

/* FAQ */
.faq h2{font-size:56px}
.qa{max-width:760px;margin:44px auto 0;text-align:left}
.qa details{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 0;font:600 16px Inter}
.qa summary::-webkit-details-marker{display:none}
.qa summary i{width:14px;height:14px;position:relative;flex:none}.qa summary i::before,.qa summary i::after{content:"";position:absolute;left:0;right:0;top:6px;height:2px;background:#000;border-radius:2px;transition:transform .2s}
.qa summary i::after{transform:rotate(90deg)}.qa details[open] summary i::after{transform:rotate(0)}
.qa p{margin:0 0 20px;color:var(--mut);font-size:15.5px;line-height:1.6}

/* appel final */
.final{background:var(--grad);border-radius:28px;padding:64px 40px;text-align:center;color:#fff;box-shadow:0 40px 80px -40px rgba(14,165,233,.7)}
.final h2{color:#fff;font-size:44px}.final p{color:rgba(255,255,255,.88);font-size:17px;max-width:540px;margin:16px auto 0}
.sitefield.light{border:0;box-shadow:0 20px 40px -20px rgba(3,105,161,.6)}

/* pied de page */
.foot{border-top:1px solid var(--line);padding:64px 0 32px}
.foot .wrap{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;max-width:1024px}
.fcol{display:flex;flex-direction:column;gap:9px;font-size:14px}.fcol b{margin-bottom:4px;font-weight:600}.fcol a{color:var(--mut)}.fcol a:hover{color:var(--sky)}
.fcol.brand p{color:var(--mut);font-size:14px;line-height:1.6;max-width:300px;margin:12px 0 0}
.foot .sub{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:44px;padding-top:22px;font-size:13px;color:var(--mut2)}

/* authentification */
.authpage{background:#fff}
.auth{display:grid;grid-template-columns:1fr 1fr;min-height:100vh;position:relative}
.authlogo{position:absolute;top:28px;left:32px}
.authbox{align-self:center;justify-self:center;width:min(380px,calc(100% - 40px));display:flex;flex-direction:column;gap:14px;padding:90px 0 40px}
.authbox h1{font-size:34px;letter-spacing:-1px}.authbox .muted{margin:0}.authbox a{color:var(--sky3);font-weight:500}
.authside{margin:12px;border-radius:24px;padding:56px;display:flex;flex-direction:column;justify-content:center;gap:22px;
  background:repeating-linear-gradient(0deg,transparent 0 37px,rgba(14,165,233,.08) 37px 38px),repeating-linear-gradient(90deg,transparent 0 37px,rgba(14,165,233,.08) 37px 38px),linear-gradient(180deg,#eef7fd,#f7fbfe)}
.authside h2{font-size:34px}
.shotmini{border-radius:12px;overflow:hidden;box-shadow:0 30px 60px -30px rgba(15,23,42,.35),0 0 0 1px rgba(15,23,42,.08)}
.fld{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:500}.fld small{font-weight:400;color:var(--mut)}
.fld input,.fld textarea{font:400 15px Inter;padding:11px 14px;border:1px solid #d1d5db;border-radius:12px;background:#fff;outline:none;color:var(--t2)}
.fld input:focus,.fld textarea:focus{border-color:var(--sky2);box-shadow:0 0 0 4px rgba(14,165,233,.15)}
.fld input[readonly]{background:var(--soft)}
.chk{display:flex;gap:9px;align-items:flex-start;font-size:13.5px}.chk input{margin-top:3px}
.alert{background:#fef2f2;color:var(--ko);border-radius:12px;padding:10px 14px;font-size:14px;margin:0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.okmark{width:52px;height:52px;border-radius:16px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center}.okmark .ic{width:26px;height:26px;stroke-width:2.6}

/* pages légales */
.legal{max-width:760px}.legal h1{font-size:46px;margin-bottom:28px}.legal h2{font-size:22px;margin:30px 0 8px;letter-spacing:-.3px}.legal p{color:var(--mut);line-height:1.65}.legal a{color:var(--sky3)}

/* rapport partagé */
.rep{max-width:1000px;margin:0 auto;padding:36px 24px 60px}
.rhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:40px}
.rep h1{font-size:44px}
.rtiles{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:28px 0}
.rt{border:1px solid var(--line);border-radius:16px;padding:18px;display:flex;flex-direction:column;align-items:center;gap:10px}.rt span{font-size:13px;color:var(--mut);align-self:flex-start}
.rt .big{font-size:40px;font-weight:700;letter-spacing:-1px;line-height:104px}
.donut{position:relative;width:var(--s);height:var(--s);display:inline-block}.donut svg{width:100%;height:100%;transform:rotate(-90deg)}
.donut circle{fill:none;stroke-width:9}.donut .tr{stroke:#eef2f6}.donut .ar{stroke-linecap:round}
.dv{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}.dv b{font:700 calc(var(--s) * .27) Inter;letter-spacing:-.04em}.dv small{font-size:calc(var(--s) * .1);color:var(--mut)}.dv em{display:none}
.rcard{border:1px solid var(--line);border-radius:16px;padding:20px;margin:16px 0}.rcard h3{font-size:17px;margin-bottom:12px}
.scroll{overflow-x:auto}
.ptbl{width:100%;border-collapse:collapse;font-size:13.5px}.ptbl th{font-weight:500;color:var(--mut);font-size:12px;padding:10px 8px;border-bottom:1px solid var(--line);text-align:center}
.ptbl th:first-child,.ptbl td:first-child{text-align:left}.ptbl td{padding:10px 8px;border-bottom:1px solid #f1f5f9;text-align:center}
.chartbox{position:relative}.chart{width:100%;height:auto;display:block}.chart .grid{stroke:#eef2f6}.chart .axis{font:11px Inter;fill:#94a3b8}.chart .hov{fill:transparent}.tip,.vline{display:none}

/* apparitions au défilement */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s,transform .6s}.reveal.in{opacity:1;transform:none}

@media(max-width:960px){
  h1{font-size:42px;letter-spacing:-1px}h2,.faq h2{font-size:34px;letter-spacing:-.8px}.split h2{font-size:30px}
  .split,.feat,.feat.rev,.auth{grid-template-columns:1fr}.feat.rev .ftext{order:0}
  .steps3,.plans,.grid3{grid-template-columns:1fr}.foot .wrap{grid-template-columns:1fr 1fr}
  .authside{display:none}.rtiles{grid-template-columns:1fr 1fr}
  .pad{padding-top:72px;padding-bottom:72px}
}
@media(max-width:720px){
  .nav .links,.nav .cta .lnk{display:none}.burger{display:flex}.nav .wrap{gap:12px;height:64px}
  body.navopen .nav .links{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:#fff;padding:16px 24px;border-bottom:1px solid var(--line)}
  .frame{border:0}.frame .wrap,.wrap{padding-left:18px;padding-right:18px}
  .hero{padding-top:44px}.lead{font-size:16.5px}
  .sitefield{flex-wrap:wrap;border-radius:20px;padding:10px}.sitefield input{flex-basis:70%}.sitefield .btn{width:100%}
  .showcase{margin:40px -18px 0;padding:22px 14px 0;border-radius:18px 18px 0 0}
  .announce{font-size:12.5px}.foot .wrap{grid-template-columns:1fr}.foot .sub{flex-direction:column;gap:6px}
  .final{padding:44px 20px;border-radius:22px}.final h2{font-size:30px}
}