/* ============================================================
   Vivien Le Moal — vivienlemoal.fr
   Style guide: Space Grotesk + Inter, dégradés pink/blue/cyan,
   dark #06070b, easing cubic-bezier(0.22, 1, 0.36, 1)
   ============================================================ */

:root{
  --bg:#06070b;
  --bg-2:#0b0d14;
  --bg-3:#11141d;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --ink:#f5f6fa;
  --ink-2:#c7cad6;
  --ink-3:#8b91a3;
  --pink:#ff5ea8;
  --blue:#7aa2ff;
  --cyan:#5ee7df;
  --violet:#b18cff;
  --mint:#7dffb3;
  --grad-pink:linear-gradient(120deg,#ff5ea8 0%,#ff8fc2 100%);
  --grad-blue:linear-gradient(120deg,#7aa2ff 0%,#b18cff 100%);
  --grad-cyan:linear-gradient(120deg,#5ee7df 0%,#7aa2ff 100%);
  --ease:cubic-bezier(0.22, 1, 0.36, 1);
  --r-xs:8px; --r-sm:12px; --r:16px; --r-lg:24px; --r-xl:32px;
  --max:1180px; --gap:32px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

/* Stars canvas */
#stars{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;pointer-events:none;opacity:.55}

/* Curtain (cold load fallback ≤ 3s) */
.curtain{position:fixed;inset:0;background:var(--bg);z-index:9999;opacity:1;transition:opacity .8s var(--ease)}
.curtain.is-up{opacity:0;pointer-events:none}

/* ===== Container ===== */
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.container--narrow{max-width:780px}

/* ===== Nav ===== */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:saturate(180%) blur(14px);background:rgba(6,7,11,.72);border-bottom:1px solid var(--line)}
.nav__inner{display:flex;align-items:center;gap:24px;padding:14px 24px;max-width:var(--max);margin:0 auto}
.nav__brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:600;letter-spacing:-.01em}
.nav__logo{display:inline-grid;place-items:center;width:32px;height:32px;background:#0e1119;border-radius:10px;border:1px solid var(--line)}
.nav__links{margin-left:auto;display:flex;gap:22px;font-size:14.5px;color:var(--ink-2)}
.nav__links a{position:relative;padding:6px 0;transition:color .3s var(--ease)}
.nav__links a:hover{color:var(--ink)}
.nav__links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--cyan);transition:width .4s var(--ease)}
.nav__links a:hover::after{width:100%}
.nav__cta{margin-left:8px}
@media (max-width:880px){.nav__links{display:none}.nav__cta{margin-left:auto}}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;font-weight:500;font-size:15px;letter-spacing:.01em;transition:transform .4s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);will-change:transform;border:1px solid transparent;line-height:1}
.btn--primary{background:#fff;color:#0a0c12}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px -10px rgba(255,255,255,.35)}
.btn--ghost{background:rgba(255,255,255,.04);color:var(--ink);border-color:var(--line-2)}
.btn--ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.28)}
.btn--pill{padding:10px 18px;font-size:14.5px}
.btn--lg{padding:18px 28px;font-size:16px}

/* ===== Typography ===== */
.h1{font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:clamp(34px,5.2vw,58px);line-height:1.05;letter-spacing:-.025em;margin:18px 0 22px}
.h2{font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:clamp(28px,3.8vw,42px);line-height:1.1;letter-spacing:-.02em;margin:14px 0 18px;max-width:880px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase;margin:0 0 6px}
.lead{font-size:clamp(16px,1.4vw,18px);color:var(--ink-2);max-width:680px;margin:0 0 26px;line-height:1.7}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
.dot--pink{background:var(--pink);box-shadow:0 0 14px var(--pink)}
.dot--blue{background:var(--blue);box-shadow:0 0 14px var(--blue)}
.dot--cyan{background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
.dot--violet{background:var(--violet);box-shadow:0 0 14px var(--violet)}
.dot--mint{background:var(--mint);box-shadow:0 0 14px var(--mint)}
.grad{background-clip:text;-webkit-background-clip:text;color:transparent;-webkit-text-fill-color:transparent;font-style:italic;font-weight:500}
.grad--pink{background-image:var(--grad-pink)}
.grad--blue{background-image:var(--grad-blue)}
.grad--cyan{background-image:var(--grad-cyan)}

/* ===== Hero ===== */
.hero{padding:80px 0 60px;position:relative}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
@media (max-width:880px){.hero__grid{grid-template-columns:1fr;gap:36px}}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin:6px 0 18px}
.hero__hint{display:inline-flex;align-items:center;gap:10px;color:var(--ink-2);font-size:14.5px;margin-top:14px}

/* Portrait */
.portrait{position:relative;aspect-ratio:1;max-width:380px;margin-inline:auto}
.portrait img{width:100%;height:100%;border-radius:50%;object-fit:cover;background:#1a1f2c;box-shadow:0 30px 80px -20px rgba(122,162,255,.35),0 0 0 1px var(--line-2),inset 0 0 0 6px rgba(255,255,255,.04)}
.portrait::before{content:"";position:absolute;inset:-8%;border-radius:50%;background:conic-gradient(from 180deg,rgba(255,94,168,.35),rgba(122,162,255,.35),rgba(94,231,223,.35),rgba(177,140,255,.35),rgba(255,94,168,.35));filter:blur(36px);opacity:.6;z-index:-1;animation:halo 18s linear infinite}
@keyframes halo{to{transform:rotate(360deg)}}
.portrait__chip{position:absolute;display:inline-flex;align-items:center;padding:8px 14px;border-radius:999px;background:rgba(11,13,20,.78);border:1px solid var(--line-2);font-size:12.5px;color:var(--ink);backdrop-filter:blur(8px);white-space:nowrap;animation:float 7s var(--ease) infinite}
.chip--pink{top:-6%;right:4%;color:#ffb3d4;border-color:rgba(255,94,168,.35)}
.chip--blue{top:42%;right:-6%;color:#b5c8ff;border-color:rgba(122,162,255,.35);animation-delay:-2s}
.chip--cyan{bottom:6%;right:8%;color:#a8f1eb;border-color:rgba(94,231,223,.35);animation-delay:-4s}
.chip--violet{bottom:14%;left:-4%;color:#d4c0ff;border-color:rgba(177,140,255,.35);animation-delay:-3s}
.chip--mint{top:24%;left:-8%;color:#b8ffce;border-color:rgba(125,255,179,.35);animation-delay:-1s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* KPIs Tesla */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:64px;padding:24px;border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,0))}
@media (max-width:720px){.kpis{grid-template-columns:repeat(2,1fr)}}
.kpi{display:flex;flex-direction:column;align-items:flex-start;padding:8px 12px}
.kpi__num{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:clamp(28px,3.4vw,40px);letter-spacing:-.02em;line-height:1}
.kpi__unit{display:inline-block;margin-top:-26px;margin-left:4px;color:var(--ink-3);font-size:18px}
.kpi__label{color:var(--ink-3);font-size:13.5px;margin-top:6px}

/* ===== Sections ===== */
.section{padding:90px 0;position:relative}
.section--probleme{background:linear-gradient(180deg,transparent,rgba(255,94,168,.04),transparent)}
.section--methode{background:linear-gradient(180deg,transparent,rgba(94,231,223,.04),transparent)}
.section--preuve{background:linear-gradient(180deg,transparent,rgba(125,255,179,.04),transparent)}
.section--diag{background:radial-gradient(60% 80% at 50% 0%,rgba(122,162,255,.10),transparent 70%)}

/* ===== Cards ===== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.cards--3{grid-template-columns:repeat(3,1fr)}
@media (max-width:880px){.cards{grid-template-columns:1fr}}
.card{padding:24px;border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,0));transition:transform .5s var(--ease),border-color .5s var(--ease),background .5s var(--ease)}
.card:hover{transform:translateY(-3px);border-color:var(--line-2);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,0))}
.card h3{font-family:'Space Grotesk',sans-serif;margin:6px 0 8px;font-size:18px;letter-spacing:-.01em}
.card p{color:var(--ink-2);margin:0;font-size:15px}
.card__num{font-family:'Space Grotesk',sans-serif;color:var(--ink-3);font-size:13px;letter-spacing:.1em}

/* ===== Steps ===== */
.steps{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:14px;counter-reset:step}
.step{display:flex;gap:18px;padding:22px;border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.02);transition:transform .5s var(--ease),border-color .5s var(--ease)}
.step:hover{transform:translateX(4px);border-color:var(--line-2)}
.step__n{flex:0 0 44px;width:44px;height:44px;display:inline-grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,rgba(122,162,255,.18),rgba(94,231,223,.18));border:1px solid var(--line-2);font-family:'Space Grotesk',sans-serif;font-weight:600}
.step h3{font-family:'Space Grotesk',sans-serif;margin:0 0 4px;font-size:18px}
.step p{color:var(--ink-2);margin:0;font-size:15px}

/* ===== Pricing ===== */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
@media (max-width:980px){.pricing{grid-template-columns:1fr}}
.price{position:relative;padding:28px;border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.02);display:flex;flex-direction:column;gap:12px}
.price--featured{border-color:rgba(122,162,255,.45);background:linear-gradient(180deg,rgba(122,162,255,.08),rgba(122,162,255,0))}
.price__badge{position:absolute;top:-12px;left:24px;padding:5px 10px;font-size:11.5px;letter-spacing:.08em;background:var(--bg-3);border:1px solid var(--line-2);border-radius:999px;color:var(--cyan);text-transform:uppercase}
.price h3{font-family:'Space Grotesk',sans-serif;margin:0;font-size:20px}
.price__tag{color:var(--ink-3);margin:0;font-size:14px}
.price__tag strong{color:var(--ink);font-family:'Space Grotesk',sans-serif;font-size:18px;font-weight:600}
.price ul{list-style:none;padding:0;margin:8px 0;display:grid;gap:8px;color:var(--ink-2);font-size:14.5px}
.price li{position:relative;padding-left:22px}
.price li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:rotate(-45deg)}
.price .btn{margin-top:auto;align-self:flex-start}

/* ===== Quotes ===== */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
@media (max-width:980px){.quotes{grid-template-columns:1fr}}
.quote{margin:0;padding:24px;border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.025)}
.quote blockquote{margin:0;font-family:'Space Grotesk',sans-serif;font-weight:400;font-size:17px;line-height:1.5;letter-spacing:-.005em}
.quote figcaption{margin-top:14px;color:var(--ink-3);font-size:13.5px}

/* ===== FAQ ===== */
.faq{margin-top:24px;display:grid;gap:10px}
.faq details{padding:16px 18px;border:1px solid var(--line);border-radius:var(--r);background:rgba(255,255,255,.02);transition:border-color .4s var(--ease),background .4s var(--ease)}
.faq details[open]{border-color:var(--line-2);background:rgba(255,255,255,.04)}
.faq summary{cursor:pointer;font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--ink-3);transition:transform .4s var(--ease)}
.faq details[open] summary::after{content:"−"}
.faq p{margin:12px 0 0;color:var(--ink-2);font-size:15px}

/* ===== Form ===== */
.form{margin-top:28px;display:grid;gap:14px;padding:28px;border:1px solid var(--line-2);border-radius:var(--r-lg);background:rgba(11,13,20,.55);backdrop-filter:blur(10px)}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:600px){.form__row{grid-template-columns:1fr}}
.field{display:grid;gap:6px}
.field span{font-size:13.5px;color:var(--ink-2)}
.field input,.field textarea{font:inherit;color:var(--ink);background:#0d1019;border:1px solid var(--line);border-radius:var(--r-sm);padding:13px 14px;width:100%;transition:border-color .3s var(--ease),background .3s var(--ease)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan);background:#0e1220}
.check{display:flex;gap:10px;align-items:flex-start;color:var(--ink-2);font-size:13.5px;line-height:1.5}
.check a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.check input{margin-top:3px;accent-color:var(--cyan)}
.form .btn{justify-self:flex-start;margin-top:6px}
.form__note{margin:6px 0 0;font-size:13.5px;color:var(--ink-3)}
.form__note a{color:var(--cyan)}

/* ===== Footer ===== */
.footer{border-top:1px solid var(--line);padding:36px 0;margin-top:40px;color:var(--ink-3);font-size:13.5px}
.footer__inner{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.footer nav{display:flex;gap:18px;flex-wrap:wrap}
.footer a:hover{color:var(--ink)}

/* ===== Shooting star ===== */
.shoot{position:fixed;width:140px;height:1px;background:linear-gradient(90deg,transparent,#fff,transparent);transform-origin:left center;pointer-events:none;z-index:2;opacity:0}
.shoot::after{content:"";position:absolute;right:0;top:-2px;width:5px;height:5px;border-radius:50%;background:#fff;box-shadow:0 0 12px #fff}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .portrait::before{animation:none}
  .kpi__num{transition:none}
}