/* ============================================================================
   landing.css — Landing marketing Tremplin
   Direction : Linear + Superhuman + Vercel. Voir DESIGN.md.
   Autonome : ne dépend pas de style.css (webapp).
   ========================================================================== */

/* ── Tokens ──────────────────────────────────────────────────────────────── */
:root {
  --n-0:#ffffff; --n-25:#fbfbfc; --n-50:#f6f7f9; --n-100:#eef0f3;
  --n-200:#e3e6ea; --n-300:#cfd4db; --n-400:#a7aeb9; --n-500:#7b8393;
  --n-600:#5a6373; --n-700:#3f4753; --n-800:#262b33; --n-900:#171a1f; --n-950:#0d0f12;

  --accent:#4f46e5; --accent-hover:#4338ca; --accent-active:#3730a3;
  --accent-soft:rgba(79,70,229,.10); --accent-ring:rgba(79,70,229,.35);
  --accent-fg:#ffffff;

  --success:#12a150; --success-soft:rgba(18,161,80,.12);
  --warning:#d18700; --warning-soft:rgba(209,135,0,.12);
  --danger:#e5484d;  --danger-soft:rgba(229,72,77,.12);

  --bg:var(--n-25); --surface:var(--n-0); --surface-2:var(--n-50);
  --border:var(--n-200); --border-strong:var(--n-300);
  --text:var(--n-900); --text-muted:var(--n-500); --heading:var(--n-950);

  --r-sm:6px; --r-md:10px; --r-lg:14px; --r-xl:20px; --r-full:999px;
  --sh-sm:0 1px 3px rgba(16,24,40,.08),0 1px 2px rgba(16,24,40,.04);
  --sh-md:0 4px 12px rgba(16,24,40,.08);
  --sh-lg:0 12px 32px rgba(16,24,40,.10);
  --sh-xl:0 24px 60px rgba(16,24,40,.14);
  --sh-focus:0 0 0 3px var(--accent-ring);

  --maxw:1120px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}

/* ── Reset léger ─────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; font-family:var(--font); background:var(--bg); color:var(--text);
  font-size:16px; line-height:1.6; letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4{color:var(--heading); letter-spacing:-.022em; line-height:1.12; margin:0}
a:focus-visible,button:focus-visible{outline:none; box-shadow:var(--sh-focus); border-radius:var(--r-sm)}
section[id],footer[id]{scroll-margin-top:76px}
p{margin:0}
a{color:inherit; text-decoration:none}
img,svg{display:block; max-width:100%}
ul{margin:0; padding:0; list-style:none}

/* ── Layout ──────────────────────────────────────────────────────────────── */
.container{width:100%; max-width:var(--maxw); margin:0 auto; padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:.75rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase;
  color:var(--accent); background:var(--accent-soft);
  padding:6px 12px; border-radius:var(--r-full); margin-bottom:20px;
}
.section-head{max-width:660px; margin:0 auto 56px; text-align:center}
.section-head h2{font-size:clamp(1.8rem,3.4vw,2.5rem); font-weight:700}
.section-head p{margin-top:16px; font-size:1.075rem; color:var(--text-muted)}

/* ── Boutons ─────────────────────────────────────────────────────────────── */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:inherit; font-size:.95rem; font-weight:600; line-height:1;
  padding:0 20px; height:44px; border-radius:var(--r-md); border:1px solid transparent;
  cursor:pointer; transition:background .2s,border-color .2s,color .2s,box-shadow .2s,transform .12s;
  white-space:nowrap;
}
.btn:focus-visible{outline:none; box-shadow:var(--sh-focus)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent); color:var(--accent-fg)}
.btn-primary:hover{background:var(--accent-hover)}
.btn-secondary{background:var(--surface); color:var(--text); border-color:var(--border-strong)}
.btn-secondary:hover{background:var(--surface-2); border-color:var(--n-400)}
.btn-ghost{background:transparent; color:var(--text)}
.btn-ghost:hover{background:var(--surface-2)}
.btn-lg{height:52px; padding:0 26px; font-size:1.02rem}
.btn-block{width:100%}

/* ── Navbar ──────────────────────────────────────────────────────────────── */
.nav{
  position:sticky; top:0; z-index:50;
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex; align-items:center; justify-content:space-between; height:64px}
.brand{display:flex; align-items:center; gap:10px; font-weight:700; font-size:1.075rem; color:var(--heading)}
.brand-mark{
  width:30px; height:30px; border-radius:8px; display:grid; place-items:center;
  background:linear-gradient(140deg,var(--accent),#7c74f0); color:#fff; font-weight:800; font-size:.95rem;
  box-shadow:var(--sh-sm);
}
.nav-links{display:flex; align-items:center; gap:32px}
.nav-links a{font-size:.925rem; font-weight:500; color:var(--text-muted); transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-cta{display:flex; align-items:center; gap:10px}
.nav-burger{display:none; background:none; border:0; padding:8px; cursor:pointer; color:var(--text)}

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero{position:relative; overflow:hidden; padding:88px 0 72px}
.hero-grid{
  position:absolute; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(to right,var(--n-100) 1px,transparent 1px),
    linear-gradient(to bottom,var(--n-100) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 40%,transparent 78%);
          mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 40%,transparent 78%);
  opacity:.7;
}
.hero-inner{position:relative; z-index:1; text-align:center; max-width:800px; margin:0 auto}
.hero h1{font-size:clamp(2.3rem,5.4vw,3.6rem); font-weight:700; letter-spacing:-.03em; line-height:1.05}
.hero h1 .grad{
  background:linear-gradient(120deg,var(--accent),#8b5cf6);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-sub{margin:22px auto 0; max-width:620px; font-size:1.15rem; color:var(--text-muted)}
.hero-actions{display:flex; gap:12px; justify-content:center; margin-top:32px; flex-wrap:wrap}
.hero-note{margin-top:16px; font-size:.85rem; color:var(--text-muted)}
.hero-badges{display:flex; gap:22px; justify-content:center; margin-top:40px; flex-wrap:wrap}
.hero-badge{display:flex; align-items:center; gap:8px; font-size:.85rem; color:var(--text-muted); font-weight:500}
.hero-badge svg{color:var(--success)}

/* ── Product mockup (pur CSS/HTML, pas d'image) ──────────────────────────── */
.mock-wrap{position:relative; z-index:1; max-width:960px; margin:56px auto 0}
.mock{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-xl);
  box-shadow:var(--sh-xl); overflow:hidden;
}
.mock-bar{
  display:flex; align-items:center; gap:8px; padding:12px 16px;
  border-bottom:1px solid var(--border); background:var(--surface-2);
}
.mock-dot{width:11px; height:11px; border-radius:50%}
.mock-dot.r{background:#f26d6d}.mock-dot.y{background:#f2c14e}.mock-dot.g{background:#5bd18a}
.mock-url{
  margin-left:12px; font-size:.78rem; color:var(--text-muted);
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-full);
  padding:4px 12px;
}
.mock-body{display:grid; grid-template-columns:200px 1fr; min-height:420px}
.mock-side{border-right:1px solid var(--border); padding:16px; background:var(--surface-2)}
.mock-nav-item{
  display:flex; align-items:center; gap:10px; padding:8px 10px; border-radius:var(--r-sm);
  font-size:.85rem; color:var(--text-muted); font-weight:500; margin-bottom:2px;
}
.mock-nav-item.active{background:var(--accent-soft); color:var(--accent)}
.mock-nav-item i{width:16px; height:16px; border-radius:4px; background:currentColor; opacity:.55}
.mock-main{padding:20px}
.mock-na{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  background:linear-gradient(120deg,var(--accent),#6d63f0); color:#fff;
  border-radius:var(--r-lg); padding:16px 18px; box-shadow:var(--sh-md);
}
.mock-na-label{font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; opacity:.85; font-weight:600}
.mock-na-title{font-size:1.02rem; font-weight:650; margin-top:3px}
.mock-na-btn{background:#fff; color:var(--accent); font-size:.82rem; font-weight:650; padding:8px 14px; border-radius:var(--r-md); white-space:nowrap}
.mock-cols{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:16px}
.mock-col{background:var(--surface-2); border:1px solid var(--border); border-radius:var(--r-md); padding:12px}
.mock-col-h{display:flex; align-items:center; justify-content:space-between; font-size:.72rem; font-weight:600; color:var(--text-muted); text-transform:uppercase; letter-spacing:.04em; margin-bottom:10px}
.mock-col-h .count{background:var(--surface); border:1px solid var(--border); border-radius:var(--r-full); padding:1px 7px; color:var(--text); font-variant-numeric:tabular-nums}
.mock-card{background:var(--surface); border:1px solid var(--border); border-radius:var(--r-sm); padding:10px; margin-bottom:8px; box-shadow:var(--sh-sm)}
.mock-card-t{font-size:.8rem; font-weight:600; color:var(--heading)}
.mock-card-c{font-size:.72rem; color:var(--text-muted); margin-top:2px}
.mock-pill{display:inline-block; margin-top:8px; font-size:.68rem; font-weight:600; padding:2px 8px; border-radius:var(--r-full)}
.mock-pill.s{background:var(--success-soft); color:var(--success)}
.mock-pill.w{background:var(--warning-soft); color:var(--warning)}
.mock-pill.a{background:var(--accent-soft); color:var(--accent)}
.mock-score{float:right; font-size:.72rem; font-weight:700; color:var(--success); font-variant-numeric:tabular-nums}

/* ── Logos / bandeau confiance texte (sans faux logos) ───────────────────── */
.trust-strip{border-top:1px solid var(--border); border-bottom:1px solid var(--border); background:var(--surface)}
.trust-strip .container{padding-top:28px; padding-bottom:28px}
.trust-strip p{text-align:center; color:var(--text-muted); font-size:.9rem}
.trust-strip strong{color:var(--text); font-weight:600}

/* ── Cartes génériques ───────────────────────────────────────────────────── */
.grid{display:grid; gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-lg);
  padding:26px; transition:border-color .2s,box-shadow .2s,transform .2s;
}
.card--hover:hover{border-color:var(--border-strong); box-shadow:var(--sh-md); transform:translateY(-2px)}
.card .ico{
  width:42px; height:42px; border-radius:var(--r-md); display:grid; place-items:center;
  background:var(--accent-soft); color:var(--accent); margin-bottom:16px;
}
.card h3{font-size:1.075rem; font-weight:650}
.card p{margin-top:8px; color:var(--text-muted); font-size:.95rem}

/* ── Section problème ────────────────────────────────────────────────────── */
.pain{display:flex; gap:14px; align-items:flex-start; padding:18px; border-radius:var(--r-md); background:var(--surface); border:1px solid var(--border)}
.pain .x{flex:0 0 auto; width:28px; height:28px; border-radius:var(--r-full); background:var(--danger-soft); color:var(--danger); display:grid; place-items:center; font-weight:700}
.pain p{color:var(--text); font-size:.95rem; font-weight:500}

/* ── Solution (steps) ────────────────────────────────────────────────────── */
.steps{counter-reset:step; display:grid; gap:0}
.step{display:grid; grid-template-columns:56px 1fr; gap:20px; padding:22px 0; border-top:1px solid var(--border)}
.step:first-child{border-top:0}
.step-num{
  counter-increment:step; width:44px; height:44px; border-radius:var(--r-md);
  background:var(--accent-soft); color:var(--accent); display:grid; place-items:center;
  font-weight:700; font-size:1.05rem; font-variant-numeric:tabular-nums;
}
.step-num::before{content:counter(step)}
.step h3{font-size:1.075rem; font-weight:650}
.step p{margin-top:6px; color:var(--text-muted); font-size:.95rem}

/* ── Avant / après ───────────────────────────────────────────────────────── */
.ba{display:grid; grid-template-columns:1fr 1fr; gap:20px}
.ba-col{border:1px solid var(--border); border-radius:var(--r-lg); overflow:hidden; background:var(--surface)}
.ba-col.after{border-color:var(--accent); box-shadow:0 0 0 1px var(--accent),var(--sh-md)}
.ba-head{padding:16px 20px; font-weight:650; font-size:1rem; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:10px}
.ba-col.before .ba-head{color:var(--text-muted)}
.ba-col.after .ba-head{color:var(--accent)}
.ba-row{display:flex; align-items:flex-start; gap:12px; padding:14px 20px; border-top:1px solid var(--border); font-size:.925rem}
.ba-row:first-of-type{border-top:0}
.ba-row .mk{flex:0 0 auto; margin-top:1px}
.ba-col.before .mk{color:var(--danger)}
.ba-col.after .mk{color:var(--success)}

/* ── Features détaillées (split) ─────────────────────────────────────────── */
.feature-list{display:flex; flex-direction:column; gap:12px; margin-top:8px}
.feature-list li{display:flex; gap:12px; align-items:flex-start; font-size:.975rem; color:var(--text)}
.feature-list .ck{flex:0 0 auto; margin-top:2px; color:var(--success)}

/* ── Confiance ───────────────────────────────────────────────────────────── */
.trust-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px}
.trust-item{padding:22px; border:1px solid var(--border); border-radius:var(--r-lg); background:var(--surface)}
.trust-item .ico{width:38px; height:38px; border-radius:var(--r-md); background:var(--success-soft); color:var(--success); display:grid; place-items:center; margin-bottom:14px}
.trust-item h3{font-size:1rem; font-weight:650}
.trust-item p{margin-top:6px; color:var(--text-muted); font-size:.9rem}

/* ── CTA final ───────────────────────────────────────────────────────────── */
.cta-final{position:relative; overflow:hidden; border-radius:var(--r-xl); padding:64px 40px; text-align:center;
  background:linear-gradient(135deg,#1e1b4b,#312e81 55%,#4338ca); color:#fff; box-shadow:var(--sh-lg)}
.cta-final h2{color:#fff; font-size:clamp(1.8rem,3.6vw,2.6rem); font-weight:700}
.cta-final p{margin:16px auto 0; max-width:520px; color:rgba(255,255,255,.82); font-size:1.075rem}
.cta-final .btn-primary{background:#fff; color:var(--accent-active)}
.cta-final .btn-primary:hover{background:#f0f0ff}
.cta-final .hero-actions{margin-top:28px}
.cta-glow{position:absolute; width:520px; height:520px; border-radius:50%; filter:blur(90px); opacity:.35; background:#6366f1; top:-180px; right:-120px; pointer-events:none}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer{border-top:1px solid var(--border); padding:48px 0 40px; background:var(--surface)}
.footer-top{display:flex; justify-content:space-between; gap:32px; flex-wrap:wrap}
.footer .brand{margin-bottom:12px}
.footer-tag{color:var(--text-muted); font-size:.9rem; max-width:280px}
.footer-cols{display:flex; gap:64px; flex-wrap:wrap}
.footer-col h4{font-size:.78rem; text-transform:uppercase; letter-spacing:.05em; color:var(--text-muted); margin-bottom:14px}
.footer-col a{display:block; font-size:.9rem; color:var(--text); margin-bottom:10px; transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{margin-top:40px; padding-top:24px; border-top:1px solid var(--border); display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; color:var(--text-muted); font-size:.85rem}

/* ── Reveal (apparition douce, progressive enhancement) ──────────────────────
   Le contenu est visible par défaut. On ne masque (pour animer) QUE si JS est
   actif (classe .js sur <html>). Ainsi, sans JS, rien n'est jamais invisible. */
.js .reveal{opacity:0; transform:translateY(14px); transition:opacity .5s ease,transform .5s cubic-bezier(.2,.6,.2,1)}
.js .reveal.in{opacity:1; transform:none}

/* ── Responsive ──────────────────────────────────────────────────────────── */
/* Tablette : densité intermédiaire à 2 colonnes plutôt qu'un saut brutal 3→1 */
@media (min-width:641px) and (max-width:900px){
  .grid-3,.trust-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .mock-cols{grid-template-columns:1fr}
  .grid-2,.ba{grid-template-columns:1fr}
  .mock-body{grid-template-columns:1fr}
  .mock-side{display:none}
}
@media (max-width:640px){
  .grid-3,.trust-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .nav-links{
    position:absolute; top:64px; left:0; right:0; flex-direction:column; align-items:stretch; gap:0;
    background:var(--surface); border-bottom:1px solid var(--border); padding:8px 0;
    box-shadow:var(--sh-md); display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 24px}
  .nav-burger{display:block}
  .nav .nav-cta .btn-ghost{display:none}
  .hero{padding:56px 0 48px}
  .cta-final{padding:48px 24px}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto !important}
  .js .reveal{opacity:1 !important; transform:none !important; transition:none}
  .btn:active,.card--hover:hover{transform:none}
}