/* Page vitrine Studio IA — sans police externe ni image bloquante (performance / Core Web Vitals). */
:root { --bg: #0b1020; --surface: #11182a; --raised: #151d31; --line: rgba(157,174,210,.16); --text: #f3f5ff; --muted: #a9b4cf; --violet: #8e72ff; --violet-2: #7659e6; --cyan: #6bd9e8; --green: #5be0af; --radius: 14px; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); border: 0; white-space: nowrap; }
.skip-link { position: absolute; left: 12px; top: -48px; z-index: 100; padding: 10px 14px; background: #fff; color: #000; border-radius: 8px; }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }

.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); background: rgba(11,16,32,.86); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; max-width: 1180px; margin: 0 auto; padding: 10px 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 1.05rem; }
.brand strong { color: var(--violet); }
.brand-mark { width: 26px; height: 26px; border-radius: 8px; background: conic-gradient(from 210deg, var(--violet), var(--cyan), var(--violet-2), var(--violet)); box-shadow: 0 0 18px rgba(142,114,255,.55); }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { text-decoration: none; color: var(--muted); font-size: .95rem; }
.nav-links a:hover { color: var(--text); }
.nav-toggle { display: none; min-width: 44px; min-height: 44px; border: 1px solid var(--line); border-radius: 10px; background: transparent; color: var(--text); font-size: 1.2rem; cursor: pointer; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 20px; border: 1px solid transparent; border-radius: 11px; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; transition: transform .15s, box-shadow .2s, background .2s; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(135deg, #9376ff, var(--violet-2)); color: #fff; box-shadow: 0 8px 26px rgba(117,88,231,.32); }
.btn-primary:hover { box-shadow: 0 12px 34px rgba(117,88,231,.48); transform: translateY(-1px); }
.btn-ghost { background: rgba(255,255,255,.04); border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: rgba(169,145,255,.55); background: rgba(142,114,255,.1); }
.btn-lg { min-height: 52px; padding: 0 28px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .65; cursor: progress; }

main { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 40px; align-items: center; padding: 64px 0 40px; }
.eyebrow { margin: 0 0 12px; color: var(--cyan); font-size: .8rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.lead { color: var(--muted); font-size: 1.12rem; max-width: 60ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0; }
.proof { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: .92rem; }
.proof strong { color: var(--text); }

.mock { padding: 14px; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(160deg, #141b33, #0c1128); box-shadow: 0 30px 80px rgba(0,0,0,.45), 0 0 0 1px rgba(142,114,255,.12) inset; }
.mock-bar { display: flex; gap: 6px; margin-bottom: 12px; }
.mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.18); }
.mock-steps { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; margin-bottom: 12px; }
.mock-steps b { display: grid; place-items: center; height: 26px; border-radius: 8px; background: rgba(255,255,255,.05); color: var(--muted); font-size: .72rem; }
.mock-steps .done { background: rgba(91,224,175,.16); color: var(--green); }
.mock-steps .active { background: var(--violet); color: #fff; }
.mock-shots { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.shot { position: relative; min-height: 96px; padding: 10px; border-radius: 12px; border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between; font-size: .78rem; }
.shot i { font-style: normal; font-weight: 800; }
.shot span { color: var(--muted); }
.s1 { background: linear-gradient(150deg, rgba(142,114,255,.35), rgba(12,18,48,.6)); }
.s2 { background: linear-gradient(150deg, rgba(107,217,232,.28), rgba(12,18,48,.6)); }
.s3 { background: linear-gradient(150deg, rgba(91,224,175,.26), rgba(12,18,48,.6)); }
.s4 { background: linear-gradient(150deg, rgba(232,210,138,.26), rgba(12,18,48,.6)); }
.mock-timeline { display: flex; gap: 3px; margin-top: 12px; }
.mock-timeline span { flex: 0 0 var(--w); height: 10px; border-radius: 4px; background: linear-gradient(90deg, var(--violet), var(--cyan)); opacity: .75; }

.section { padding: 56px 0; }
.section-lead { color: var(--muted); max-width: 70ch; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; margin-top: 22px; }
.cards-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(170deg, rgba(255,255,255,.035), rgba(255,255,255,.01)); transition: border-color .2s, transform .2s; }
.card:hover { border-color: rgba(169,145,255,.5); transform: translateY(-2px); }
.card p { color: var(--muted); margin: 0; font-size: .96rem; }

.spotlight { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 36px; align-items: center; padding: 40px; margin: 16px 0; border: 1px solid rgba(142,114,255,.35); border-radius: 22px; background: radial-gradient(120% 140% at 0% 0%, rgba(142,114,255,.16), transparent 55%), linear-gradient(160deg, #0f1330, #0b1020); }
.checks { margin: 18px 0 24px; padding: 0; list-style: none; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 28px; color: #d6dcf2; }
.checks li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--green); font-weight: 800; }
.flow { counter-reset: s; margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.flow li { counter-increment: s; padding: 10px 14px; border: 1px solid var(--line); border-radius: 11px; background: rgba(255,255,255,.03); font-weight: 600; font-size: .95rem; }
.flow li::before { content: counter(s); display: inline-grid; place-items: center; width: 22px; height: 22px; margin-right: 10px; border-radius: 50%; background: var(--violet); font-size: .75rem; }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 22px 0 0; padding: 0; list-style: none; }
.steps li { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.02); }
.steps p { color: var(--muted); margin: 0; font-size: .95rem; }
.step-n { display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 10px; border-radius: 50%; background: linear-gradient(135deg, #9376ff, var(--violet-2)); font-weight: 800; }

.faq details { margin-bottom: 10px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.025); }
.faq summary { cursor: pointer; padding: 16px 18px; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::after { content: "+"; color: var(--violet); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq summary::-webkit-details-marker { display: none; }
.faq details p { margin: 0; padding: 0 18px 18px; color: var(--muted); }
.final-cta { text-align: center; }
.final-cta .section-lead { margin-inline: auto; }

.site-footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; max-width: 1180px; margin: 24px auto 0; padding: 24px 20px 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--text); text-decoration: underline; }

/* Modal d'authentification */
.modal { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; padding: 16px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(4,6,16,.74); backdrop-filter: blur(4px); }
.modal-box { position: relative; width: min(440px, 100%); max-height: calc(100vh - 32px); overflow: auto; padding: 28px 24px 24px; border: 1px solid rgba(169,145,255,.35); border-radius: 18px; background: linear-gradient(170deg, #161d38, #0e1328); box-shadow: 0 40px 100px rgba(0,0,0,.6); animation: pop .18s ease-out; }
@keyframes pop { from { transform: translateY(8px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-box:focus { outline: none; }
.modal-close { position: absolute; top: 10px; right: 12px; width: 44px; height: 44px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); font-size: 1.7rem; line-height: 1; cursor: pointer; }
.modal-close:hover { color: var(--text); background: rgba(255,255,255,.06); }
.modal h2 { font-size: 1.4rem; padding-right: 40px; }
.modal-lead { color: var(--muted); }
.modal-actions { display: grid; gap: 10px; margin-top: 18px; }
.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; margin: 14px 0; padding: 4px; border-radius: 12px; background: rgba(255,255,255,.05); }
.tab { min-height: 42px; border: 0; border-radius: 9px; background: transparent; color: var(--muted); font: inherit; font-weight: 700; cursor: pointer; }
.tab[aria-selected="true"] { background: var(--violet-2); color: #fff; }
.btn-google { width: 100%; background: #fff; color: #1f2430; }
.btn-google:hover { background: #f1f3f9; }
.or { display: flex; align-items: center; gap: 10px; margin: 14px 0; color: var(--muted); font-size: .85rem; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--line); }
form label { display: block; margin-bottom: 12px; font-size: .88rem; color: var(--muted); }
form input[type="text"], form input[type="email"], form input[type="password"] { display: block; width: 100%; min-height: 44px; margin-top: 5px; padding: 0 12px; border: 1px solid var(--line); border-radius: 10px; background: #0a0f22; color: var(--text); font: inherit; }
form input:focus { border-color: var(--violet); outline: none; box-shadow: 0 0 0 3px rgba(142,114,255,.3); }
form input[aria-invalid="true"] { border-color: #f27878; }
.pw { position: relative; display: block; }
.pw input { padding-right: 84px; }
.pw-toggle { position: absolute; right: 6px; top: 11px; min-height: 36px; padding: 0 10px; border: 0; border-radius: 8px; background: rgba(255,255,255,.06); color: var(--muted); font: inherit; font-size: .8rem; cursor: pointer; }
.check { display: flex; gap: 10px; align-items: flex-start; line-height: 1.4; }
.check input { margin-top: 3px; width: 18px; height: 18px; accent-color: var(--violet); flex: none; }
.check a { color: var(--cyan); }
.form-message { margin: 0 0 12px; padding: 10px 12px; border-radius: 10px; font-size: .88rem; border: 1px solid rgba(242,120,120,.4); background: rgba(242,120,120,.1); color: #ffc4c4; }
.form-message[data-type="ok"] { border-color: rgba(91,224,175,.45); background: rgba(91,224,175,.1); color: #b8f3dc; }
body.modal-open { overflow: hidden; }

@media (max-width: 900px) {
    .hero, .spotlight { grid-template-columns: 1fr; }
    .hero { padding-top: 36px; }
    .spotlight { padding: 24px; }
    .nav-toggle { display: inline-grid; place-items: center; }
    .nav-links { position: absolute; left: 0; right: 0; top: 100%; display: none; flex-direction: column; align-items: stretch; gap: 4px; padding: 12px 20px 18px; background: #0d1224; border-bottom: 1px solid var(--line); }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 12px 4px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .modal-box { animation: none; } .btn, .card { transition: none; } }