/* ============================================================================
   MAG STUDIO — landing page
   Éditorial monochrome (noir / blanc / gris), Inter + Fraunces.
   Inspiration : Linear · Stripe · presse haut de gamme.
   ============================================================================ */
*{ box-sizing:border-box; }
:root{
  --bg:#fbfbfc; --panel:#ffffff; --panel2:#f6f6f7; --hover:#f1f1f2;
  --line:#e8e8ea; --line2:#dedee1;
  --txt:#0c0c0d; --txt2:#5c5c64; --txt3:#9a9aa1;
  --ink:#111113; --ink-hover:#262629;
  --ring:rgba(17,17,19,.10);
  --radius:14px;
  --maxw:1180px;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --shadow-sm:0 1px 2px rgba(17,17,19,.05), 0 8px 24px -14px rgba(17,17,19,.16);
  --shadow:0 20px 50px -24px rgba(17,17,19,.30);
  --shadow-lg:0 40px 90px -36px rgba(17,17,19,.42);
}
html{ scroll-behavior:smooth; }
body{ margin:0; background:var(--bg); color:var(--txt); font-family:var(--sans);
  font-size:16px; line-height:1.55; -webkit-font-smoothing:antialiased; overflow-x:hidden; }
a{ color:inherit; text-decoration:none; }
img{ display:block; max-width:100%; }
.wrap{ width:100%; max-width:var(--maxw); margin:0 auto; padding:0 26px; }
.nowrap{ white-space:nowrap; }
em{ font-style:italic; }
.muted{ color:var(--txt3); }
::selection{ background:#111113; color:#fff; }

/* ---------- boutons ---------- */
.btn{ display:inline-flex; align-items:center; justify-content:center; gap:8px;
  border:1px solid var(--line2); background:var(--panel); color:var(--txt);
  border-radius:10px; padding:10px 16px; font-weight:550; font-size:14px; line-height:1;
  font-family:inherit; cursor:pointer; transition:background .14s, border-color .14s, transform .14s, box-shadow .14s; white-space:nowrap; }
.btn:hover{ background:var(--hover); }
.btn:active{ transform:translateY(1px); }
.btn.primary{ background:var(--ink); border-color:var(--ink); color:#fff; }
.btn.primary:hover{ background:var(--ink-hover); }
.btn.ghost{ background:transparent; border-color:transparent; color:var(--txt2); }
.btn.ghost:hover{ background:var(--hover); color:var(--txt); }
.btn.outline{ background:var(--panel); border-color:var(--line2); }
.btn.outline:hover{ border-color:#c7c7cd; background:#fff; box-shadow:var(--shadow-sm); }
.btn.outline-light{ background:transparent; border-color:rgba(255,255,255,.32); color:#fff; }
.btn.outline-light:hover{ border-color:rgba(255,255,255,.6); background:rgba(255,255,255,.08); }
.btn.lg{ padding:14px 22px; font-size:15px; border-radius:12px; }
.btn.block{ width:100%; }
.btn .ico{ width:16px; height:16px; }

/* ---------- NAV ---------- */
.nav{ position:fixed; top:0; left:0; right:0; z-index:50; transition:background .2s, box-shadow .2s, border-color .2s;
  background:rgba(251,251,252,.7); backdrop-filter:saturate(1.6) blur(12px); border-bottom:1px solid transparent; }
.nav.scrolled{ background:rgba(251,251,252,.82); border-bottom-color:var(--line); box-shadow:0 1px 0 rgba(17,17,19,.02); }
.nav-in{ height:64px; display:flex; align-items:center; justify-content:space-between; gap:20px; }
.brand{ font-weight:700; font-size:19px; letter-spacing:-.02em; }
.brand span{ color:var(--txt3); font-weight:600; }
.nav-links{ display:flex; gap:28px; margin-left:auto; }
.nav-links a{ color:var(--txt2); font-size:14.5px; font-weight:500; transition:color .14s; }
.nav-links a:hover{ color:var(--txt); }
.nav-cta{ display:flex; align-items:center; gap:10px; margin-left:26px; }
.burger{ display:none; flex-direction:column; gap:5px; width:40px; height:40px; align-items:center; justify-content:center;
  background:transparent; border:1px solid var(--line2); border-radius:10px; cursor:pointer; }
.burger span{ width:18px; height:1.8px; background:var(--txt); border-radius:2px; transition:transform .22s, opacity .22s; }
.burger.on span:nth-child(1){ transform:translateY(6.8px) rotate(45deg); }
.burger.on span:nth-child(2){ opacity:0; }
.burger.on span:nth-child(3){ transform:translateY(-6.8px) rotate(-45deg); }
.mobile-menu{ display:none; flex-direction:column; gap:4px; padding:10px 26px 22px; }
.mobile-menu a{ padding:13px 4px; font-size:16px; font-weight:500; border-bottom:1px solid var(--line); color:var(--txt); }
.mobile-menu a.btn{ border:1px solid var(--ink); margin-top:12px; justify-content:center; }
body.menu-open .mobile-menu{ display:flex; }
body.menu-open .nav{ background:var(--bg); border-bottom-color:var(--line); }

/* ---------- HERO ---------- */
.hero{ padding:120px 0 40px; background:
  radial-gradient(1200px 620px at 78% -8%, #ffffff, transparent 60%),
  radial-gradient(900px 500px at 6% 4%, #f3f3f5, transparent 55%); }
.hero-in{ display:grid; grid-template-columns:1.04fr .96fr; gap:54px; align-items:center; }
.eyebrow{ display:inline-flex; align-items:center; gap:9px; font-size:13px; font-weight:550; color:var(--txt2);
  background:var(--panel); border:1px solid var(--line2); padding:7px 13px; border-radius:999px; box-shadow:var(--shadow-sm); }
.eyebrow .dot{ width:7px; height:7px; border-radius:50%; background:#111113; box-shadow:0 0 0 3px rgba(17,17,19,.10); }
.hero h1{ font-family:var(--serif); font-weight:500; font-size:clamp(40px,5.4vw,68px); line-height:1.04;
  letter-spacing:-.018em; margin:22px 0 0; }
.hero h1 em{ font-style:italic; color:var(--txt); }
.lead{ font-size:clamp(16px,1.5vw,19px); color:var(--txt2); margin:22px 0 0; max-width:540px; }
.hero-actions{ display:flex; gap:12px; margin-top:30px; flex-wrap:wrap; }
.hero-actions.center{ justify-content:center; }
.hero-meta{ display:flex; gap:20px; flex-wrap:wrap; margin-top:24px; color:var(--txt3); font-size:13.5px; font-weight:500; }

/* visuel hero — planche magazine */
.hero-visual{ position:relative; perspective:1600px; }
.spread{ position:relative; display:grid; grid-template-columns:1fr 1fr; gap:14px;
  transform:rotateY(-12deg) rotateX(4deg) rotate(1deg); transform-style:preserve-3d;
  filter:drop-shadow(0 50px 80px rgba(17,17,19,.28)); }
.mag{ position:relative; aspect-ratio:210/297; background:#fff; border-radius:6px; overflow:hidden;
  border:1px solid rgba(17,17,19,.06); }
.mag.cover{ color:#fff; }
.mag.cover img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.mag-overlay{ position:absolute; inset:0; background:linear-gradient(180deg, rgba(10,12,20,.12) 0%, rgba(10,12,20,.66) 100%); }
.mag-kicker{ position:absolute; top:14px; left:14px; z-index:2; font-size:9px; font-weight:700; letter-spacing:.22em; }
.mag-title{ position:absolute; left:14px; right:14px; bottom:42px; z-index:2; font-family:var(--serif); font-weight:600;
  font-size:clamp(20px,3vw,30px); line-height:1.02; }
.mag-deck{ position:absolute; left:14px; right:14px; bottom:20px; z-index:2; font-size:9.5px; letter-spacing:.04em; opacity:.92; }
.mag.inner{ padding:16px 15px; background:#fff; }
.mag-rubric{ font-size:8.5px; font-weight:700; letter-spacing:.2em; color:#b11; text-transform:uppercase; }
.mag-h{ font-family:var(--serif); font-weight:600; font-size:clamp(17px,2.4vw,23px); line-height:1.03; margin:7px 0 11px; color:#15151a; }
.mag-photo{ width:100%; aspect-ratio:4/3; object-fit:cover; border-radius:3px; margin-bottom:11px; }
.mag-lines{ display:flex; flex-direction:column; gap:5px; }
.mag-lines i{ height:4px; background:#e7e7ea; border-radius:2px; display:block; }
.mag-cols{ display:grid; grid-template-columns:1fr 1fr; gap:11px; margin-top:11px; }
.mag-lines.sm i{ height:3.2px; }

.float-card{ position:absolute; z-index:5; display:flex; align-items:center; gap:11px; background:rgba(255,255,255,.86);
  backdrop-filter:saturate(1.5) blur(10px); border:1px solid var(--line2); border-radius:13px; padding:11px 14px; box-shadow:var(--shadow); }
.float-card b{ display:block; font-size:13.5px; font-weight:600; }
.float-card span{ display:block; font-size:11.5px; color:var(--txt3); }
.float-card .fc-ico{ width:30px; height:30px; display:grid; place-items:center; background:var(--ink); color:#fff; border-radius:9px; font-size:15px; }
.float-card .fc-swatch{ width:30px; height:30px; border-radius:9px;
  background:linear-gradient(135deg,#1b3a5b,#7a1f3d); }
.fc1{ top:8%; left:-28px; animation:floaty 6s ease-in-out infinite; }
.fc2{ bottom:9%; right:-22px; animation:floaty 6s ease-in-out infinite .8s; }
@keyframes floaty{ 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(-9px); } }

.logos{ margin-top:66px; text-align:center; }
.logos > span{ font-size:12.5px; color:var(--txt3); letter-spacing:.02em; }
.logos-row{ display:flex; flex-wrap:wrap; justify-content:center; gap:34px; margin-top:16px; }
.logos-row em{ font-style:normal; font-weight:600; font-size:15px; color:#bcbcc2; letter-spacing:.01em; }

/* ---------- SECTIONS ---------- */
.section{ padding:96px 0; }
.section.alt{ background:linear-gradient(180deg,#f7f7f8,#fbfbfc); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.sec-head{ max-width:680px; margin-bottom:46px; }
.sec-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.tag{ display:inline-block; font-size:12px; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--txt3); margin-bottom:14px; }
.sec-head h2{ font-family:var(--serif); font-weight:500; font-size:clamp(28px,3.6vw,42px); line-height:1.08; letter-spacing:-.015em; margin:0; }
.sec-head p{ color:var(--txt2); font-size:17px; margin:16px 0 0; }

.grid{ display:grid; gap:18px; }
.features{ grid-template-columns:repeat(3,1fr); }
.card{ background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:26px 24px;
  transition:transform .2s, box-shadow .2s, border-color .2s; }
.card.feat:hover{ transform:translateY(-4px); box-shadow:var(--shadow); border-color:var(--line2); }
.feat-ico{ width:42px; height:42px; display:grid; place-items:center; background:var(--panel2); border:1px solid var(--line);
  border-radius:11px; font-size:20px; color:var(--ink); margin-bottom:18px; }
.card h3{ font-size:18px; font-weight:600; letter-spacing:-.01em; margin:0 0 8px; }
.card p{ color:var(--txt2); font-size:14.5px; margin:0; }

/* steps */
.steps{ grid-template-columns:repeat(3,1fr); gap:22px; }
.step{ padding:6px 4px; }
.step-n{ font-family:var(--serif); font-size:34px; font-weight:500; color:var(--txt3); margin-bottom:8px; }
.step h3{ font-size:20px; font-weight:600; margin:0 0 6px; letter-spacing:-.01em; }
.step p{ color:var(--txt2); font-size:15px; margin:0; }
.step{ position:relative; }
.steps .step:not(:last-child)::after{ content:""; position:absolute; top:24px; right:-11px; width:22px; height:1px; background:var(--line2); }

/* showcase */
.showcase{ display:grid; grid-template-columns:repeat(4,1fr); grid-auto-rows:200px; gap:16px; }
.shot{ margin:0; position:relative; border-radius:var(--radius); overflow:hidden; border:1px solid var(--line);
  box-shadow:var(--shadow-sm); }
.shot img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.shot:hover img{ transform:scale(1.05); }
.shot.tall{ grid-row:span 2; }
.shot.wide{ grid-column:span 2; }
.shot figcaption{ position:absolute; left:12px; bottom:11px; color:#fff; font-size:12px; font-weight:600; letter-spacing:.02em;
  background:rgba(17,17,19,.42); backdrop-filter:blur(4px); padding:4px 10px; border-radius:999px; }

/* CTA */
.cta-band{ background:var(--ink); color:#fff; padding:90px 0; text-align:center; }
.cta-in h2{ font-family:var(--serif); font-weight:500; font-size:clamp(28px,4vw,46px); line-height:1.08; letter-spacing:-.015em; margin:0 auto; max-width:760px; }
.cta-in p{ color:rgba(255,255,255,.66); font-size:17px; margin:16px auto 30px; max-width:520px; }

/* FOOTER */
.footer{ border-top:1px solid var(--line); padding:40px 0; background:var(--bg); }
.foot-in{ display:flex; align-items:center; justify-content:space-between; gap:18px; flex-wrap:wrap; }
.foot-links{ display:flex; gap:24px; flex-wrap:wrap; }
.foot-links a{ color:var(--txt2); font-size:14px; }
.foot-links a:hover{ color:var(--txt); }
.copy{ color:var(--txt3); font-size:13px; }

/* reveal anim */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ---------- RESPONSIVE ---------- */
@media (max-width:980px){
  .hero-in{ grid-template-columns:1fr; gap:48px; }
  .hero{ padding:104px 0 30px; }
  .hero-copy{ max-width:620px; }
  .lead{ max-width:none; }
  .hero-visual{ max-width:460px; margin:0 auto; }
  .features{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:760px){
  .nav-links, .nav-cta{ display:none; }
  .burger{ display:flex; }
  .section{ padding:72px 0; }
  .features, .steps{ grid-template-columns:1fr; }
  .steps .step::after{ display:none; }
  .showcase{ grid-template-columns:repeat(2,1fr); grid-auto-rows:160px; }
  .shot.wide{ grid-column:span 2; }
  .shot.tall{ grid-row:span 1; }
  .fc1{ left:-8px; } .fc2{ right:-6px; }
  .hero-meta{ gap:14px; font-size:12.5px; }
}
@media (max-width:440px){
  .wrap{ padding:0 18px; }
  .hero h1{ font-size:38px; }
  .float-card{ padding:8px 11px; } .float-card .fc-ico,.float-card .fc-swatch{ width:26px; height:26px; }
  .showcase{ grid-template-columns:1fr; grid-auto-rows:180px; }
  .shot.wide{ grid-column:span 1; }
  .btn.lg{ width:100%; }
  .hero-actions{ width:100%; }
}
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; scroll-behavior:auto; }
  .reveal{ opacity:1; transform:none; }
}