/* ==========================================================================
   Yelti - charte V6 (clair, Outfit/Kanit, jaune Yelti)
   ========================================================================== */

:root {
  --bg: #F6F6F3;
  --surface: #FFFFFF;
  --surface-2: #EEEDE8;
  --line: #E1E0DA;
  --text: #141413;
  --muted: #5E5D57;
  --accent: #FCB800;
  --accent-2: #EF860C;
  --on-accent: #121210;
  --on-accent-muted: #3A2E05;
  --grad: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);

  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Kanit", system-ui, sans-serif;

  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 28px;
  --gutter: 64px;
  --section: 110px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p, ul, blockquote { margin: 0; }
ul { padding: 0; list-style: none; }
button { font: inherit; color: inherit; cursor: pointer; }

.container { width: 100%; max-width: 1440px; margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section); }
.h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.035em;
  max-width: 18ch;
}

.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--text); color: #fff; padding: 8px 16px; border-radius: 999px; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 18px 30px; border-radius: 999px; border: 1.5px solid transparent;
  font-family: var(--font-display); font-weight: 600; font-size: 17px; white-space: nowrap;
  transition: background-color .25s, color .25s;
}
.btn:active { scale: 0.98; }
.btn i { font-size: 18px; }
.btn--dark { background: var(--on-accent); color: #F4F2EC; }
.btn--dark i { color: var(--accent); }
.btn--dark:hover { background: #2A2A26; }
.btn--ghost { border-color: var(--text); font-weight: 500; }
.btn--ghost:hover { background: var(--text); color: #F4F2EC; }
.btn--sm { padding: 12px 22px; font-size: 15px; }
.btn--block { width: 100%; }

.link { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-display); font-weight: 600; font-size: 17px; }
.link i { transition: transform .3s var(--ease); }
.link:hover i { transform: translateX(4px); }

.logo { font-family: var(--font-display); font-weight: 800; font-size: 30px; letter-spacing: -0.04em; }
.logo span { color: var(--accent); }
.logo--lg { font-size: 48px; }
.logo { display: inline-flex; align-items: center; }
.logo img { display: block; flex: none; height: 34px; width: auto; max-width: none; aspect-ratio: 336.38 / 113.32; }
.logo--lg img { height: 52px; }

.stars { display: inline-flex; gap: 2px; color: var(--accent); }

/* ---------- Navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav__links { display: flex; gap: 36px; }
.nav__links a { color: var(--muted); font-size: 15px; transition: color .2s; }
.nav__links a:hover { color: var(--text); }
.nav__burger { display: none; width: 44px; height: 44px; border-radius: 999px; border: 1px solid var(--line); background: none; font-size: 22px; }

/* ---------- Hero ---------- */
.hero {
  display: grid; grid-template-columns: 1fr 600px; gap: 64px; align-items: end;
  padding-top: 64px;
}
.hero__copy { display: flex; flex-direction: column; gap: 24px; }
.hero__title {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(44px, 6.2vw, 84px); line-height: 1; letter-spacing: -0.04em;
}
.hero__title .word { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: 0.14em; margin-bottom: -0.14em; }
.hero__title .word > span { display: inline-block; }
.hero__sub { font-size: 20px; color: var(--muted); max-width: 520px; }
.hero__mascot { position: relative; width: 520px; max-width: 100%; height: 360px; margin-top: 8px; }
.hero__disk { position: absolute; left: 90px; top: 40px; width: 320px; height: 320px; border-radius: 50%; background: var(--grad); }
.hero__camelon { position: absolute; left: 40px; bottom: 0; width: 380px; height: auto; }

.chooser {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px; display: flex; flex-direction: column; gap: 12px; margin-bottom: 72px;
  box-shadow: 0 24px 60px rgba(20, 20, 19, 0.06);
}
.chooser__q { font-family: var(--font-display); font-weight: 700; font-size: 26px; letter-spacing: -0.02em; margin-bottom: 4px; }
.chooser__item {
  display: flex; align-items: center; gap: 16px; padding: 16px 18px; border-radius: 16px;
  background: var(--bg); transition: background-color .25s, translate .3s var(--ease);
}
.chooser__item:hover { translate: 4px 0; background: var(--surface-2); }
.chooser__item--hot, .chooser__item--hot:hover { background: var(--accent); }
.chooser__icon { flex: none; width: 44px; height: 44px; border-radius: 12px; background: var(--surface); display: grid; place-items: center; font-size: 22px; }
.chooser__item--hot .chooser__icon { background: var(--on-accent); color: var(--accent); }
.chooser__txt { flex: 1; display: flex; flex-direction: column; }
.chooser__txt strong { font-family: var(--font-display); font-weight: 600; font-size: 19px; }
.chooser__txt small { font-size: 14px; color: var(--muted); }
.chooser__item--hot small { color: var(--on-accent-muted); }
.chooser__go { font-size: 20px; }

/* ---------- Bandeau preuves ---------- */
.proof { background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: var(--on-accent); position: relative; z-index: 2; }
.proof__inner { display: flex; align-items: center; gap: 48px; padding-block: 28px; }
.proof__years { display: flex; align-items: baseline; gap: 10px; color: var(--on-accent-muted); }
.proof__years strong { font-family: var(--font-display); font-weight: 800; font-size: 40px; letter-spacing: -0.04em; color: var(--on-accent); font-variant-numeric: tabular-nums; }
.proof__google { display: flex; align-items: center; gap: 10px; font-weight: 500; }
.proof__google .stars { color: var(--on-accent); }
.proof__sep { width: 1.5px; height: 40px; background: rgba(18, 18, 16, 0.2); }
.proof__logos { flex: 1; display: flex; justify-content: space-between; gap: 24px; font-family: var(--font-display); font-weight: 700; font-size: 22px; color: #5A4705; }

/* ---------- Services / onglets ---------- */
.services { display: flex; flex-direction: column; gap: 40px; }
.tabs { position: relative; display: inline-flex; align-self: flex-start; gap: 4px; padding: 6px; border-radius: 999px; background: var(--surface-2); }
.tabs button { position: relative; z-index: 1; border: 0; background: none; padding: 12px 24px; border-radius: 999px; font-family: var(--font-display); font-weight: 500; font-size: 16px; color: var(--muted); transition: color .3s; }
.tabs button[aria-selected="true"] { color: var(--text); font-weight: 600; }
.tabs__pill { position: absolute; z-index: 0; top: 6px; left: 0; width: 0; height: calc(100% - 12px); border-radius: 999px; background: var(--surface); box-shadow: 0 2px 8px rgba(20, 20, 19, 0.08); }

.panels { position: relative; }
.panel {
  display: grid; grid-template-columns: 640px 1fr; gap: 48px; align-items: center;
  padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
}
.panel[hidden] { display: none; }
.panel__img { border-radius: var(--radius); overflow: hidden; aspect-ratio: 16 / 11.5; }
.panel__img img { width: 100%; height: 100%; object-fit: cover; }
.panel__txt { display: flex; flex-direction: column; gap: 22px; padding-right: 24px; }
.panel__txt h3 { font-family: var(--font-display); font-weight: 700; font-size: 36px; letter-spacing: -0.03em; line-height: 1.1; }
.panel__txt p { font-size: 18px; color: var(--muted); }
.chips { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.chips li { padding: 14px 16px; border-radius: 14px; background: var(--bg); font-weight: 500; }

/* ---------- Projets IA ---------- */
.ia { display: flex; flex-direction: column; gap: 56px; padding-top: 40px; }
.ia__head { display: grid; grid-template-columns: 1fr 520px; gap: 64px; align-items: end; }
.ia__title { display: flex; flex-direction: column; gap: 20px; }
.badge { display: inline-flex; align-self: flex-start; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 999px; background: var(--accent); color: var(--on-accent); font-family: var(--font-display); font-weight: 600; font-size: 13px; letter-spacing: 0.1em; }
.ia__img { height: 300px; border-radius: 24px; overflow: hidden; }
.ia__img img { width: 100%; height: 130%; object-fit: cover; }

.steps { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; padding-top: 44px; }
.steps__track { position: absolute; top: 7px; left: 0; right: 0; height: 2px; background: var(--line); }
.steps__fill { position: absolute; inset: 0; background: var(--grad); transform-origin: left center; transform: scaleX(0); }
.step { display: flex; flex-direction: column; gap: 10px; position: relative; }
.step__dot { position: absolute; top: -44px; left: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--surface); border: 2px solid var(--line); transition: background-color .3s, border-color .3s; }
.step.is-on .step__dot { background: var(--accent); border-color: var(--accent); }
.step h3 { font-family: var(--font-display); font-weight: 700; font-size: 28px; letter-spacing: -0.03em; }
.step p { color: var(--muted); max-width: 30ch; }

/* ---------- Réalisations ---------- */
.works { padding-block: var(--section); background: var(--surface); overflow: hidden; }
.works__head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 40px; }
.works__viewport { padding-left: max(var(--gutter), calc((100vw - 1440px) / 2 + var(--gutter))); }
.works__track { display: flex; gap: 24px; width: max-content; }
.work { display: flex; flex-direction: column; gap: 14px; width: 560px; }
.work__img { height: 420px; border-radius: 24px; overflow: hidden; }
.work__img img { width: 100%; height: 100%; object-fit: cover; transition: scale .8s var(--ease); }
.work:hover .work__img img { scale: 1.04; }
.work h3 { font-family: var(--font-display); font-weight: 600; font-size: 22px; }
.work p { color: var(--muted); font-size: 15px; }
.work--more { width: 420px; height: 420px; border-radius: 24px; background: var(--grad); color: var(--on-accent); justify-content: space-between; padding: 36px; margin-right: var(--gutter); }
.work--more span { font-family: var(--font-display); font-weight: 700; font-size: 40px; line-height: 1.05; letter-spacing: -0.03em; }
.work--more i { font-size: 48px; align-self: flex-end; transition: translate .4s var(--ease); }
.work--more:hover i { translate: 6px -6px; }

/* ---------- Avis ---------- */
.reviews { display: flex; flex-direction: column; gap: 40px; }
.reviews__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 24px; align-items: start; }
.review { display: flex; flex-direction: column; gap: 20px; padding: 32px; background: var(--surface); border: 1px solid var(--line); border-radius: 24px; }
.review p { font-family: var(--font-display); font-weight: 500; font-size: 20px; line-height: 1.3; }
.review--big p { font-size: 28px; letter-spacing: -0.02em; }
.review cite { font-style: normal; font-size: 15px; color: var(--muted); }

/* ---------- Contact ---------- */
.contact { padding-top: 0; }
.contact__card { display: grid; grid-template-columns: 1fr 560px; gap: 64px; align-items: center; padding: 56px; border-radius: 32px; background: var(--accent); }
.contact__copy { display: flex; flex-direction: column; gap: 20px; }
.contact__title { font-family: var(--font-display); font-weight: 700; font-size: clamp(40px, 5vw, 72px); line-height: 1; letter-spacing: -0.04em; color: var(--on-accent); }
.contact__copy p { font-size: 18px; color: var(--on-accent-muted); max-width: 440px; }
.form { display: flex; flex-direction: column; gap: 18px; padding: 32px; background: var(--surface); border-radius: 24px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 14px; font-weight: 600; }
.field input { font: inherit; font-size: 15px; padding: 14px 16px; border-radius: var(--radius-sm); border: 1px solid #B5B4AC; background: var(--surface); color: var(--text); }
.field input::placeholder { color: #6E6D66; }
.field input:focus { outline: none; border-color: var(--text); box-shadow: 0 0 0 3px rgba(252, 184, 0, 0.45); }
.field__error { display: none; color: #A3261B; font-size: 13px; }
.field.has-error input { border-color: #A3261B; }
.field.has-error .field__error { display: block; }
.form__ok { font-weight: 600; color: #1E6B2E; }

/* ---------- Footer ---------- */
.footer { background: var(--surface); border-top: 1px solid var(--line); }
.footer__top { display: flex; justify-content: space-between; gap: 48px; padding-block: 64px 48px; }
.footer__brand { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
.footer__cols { display: flex; gap: 72px; }
.footer__cols div { display: flex; flex-direction: column; gap: 12px; }
.footer__cols h4 { font-family: var(--font-display); font-weight: 700; font-size: 15px; }
.footer__cols a { color: var(--muted); }
.footer__cols a:hover { color: var(--text); }
.footer__bottom { padding-block: 20px 40px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }

/* ---------- Etat initial des révélations (seulement si JS + animations actifs) ---------- */
.js-anim .reveal { opacity: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
  .hero { grid-template-columns: 1fr 480px; }
  .panel { grid-template-columns: 1fr 1fr; }
  .ia__head { grid-template-columns: 1fr 400px; }
  .contact__card { grid-template-columns: 1fr 460px; }
  .footer__cols { gap: 40px; }
}

@media (max-width: 1023px) {
  :root { --gutter: 32px; --section: 80px; }
  .nav__links { display: none; }
  .nav__links.is-open {
    display: flex; flex-direction: column; gap: 4px;
    position: absolute; top: 100%; left: 0; right: 0; padding: 16px var(--gutter) 24px;
    background: var(--surface); border-bottom: 1px solid var(--line);
  }
  .nav__links.is-open a { padding: 12px 0; font-size: 18px; color: var(--text); }
  .nav__burger { display: grid; place-items: center; }
  .hero { display: flex; flex-direction: column; align-items: stretch; gap: 24px; padding-top: 40px; }
  .hero__copy { display: contents; }
  .hero__title { order: 1; }
  .hero__sub { order: 2; }
  .chooser { order: 3; margin-bottom: 0; }
  .hero__mascot { order: 4; margin-inline: auto; }
  .proof__inner { flex-wrap: wrap; gap: 20px 32px; }
  .proof__logos { flex-basis: 100%; }
  .panel { grid-template-columns: 1fr; }
  .panel__txt { padding: 0 8px 8px; }
  .ia__head { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 72px; }
  .steps__track { display: none; }
  .works__viewport { overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; }
  .work { scroll-snap-align: start; width: 78vw; max-width: 520px; }
  .work__img { height: 300px; }
  .work--more { width: 70vw; max-width: 360px; height: 300px; }
  .reviews__grid { grid-template-columns: 1fr; }
  .contact__card { grid-template-columns: 1fr; padding: 32px; gap: 32px; }
  .footer__top { flex-direction: column; }
  .footer__cols { flex-wrap: wrap; gap: 32px 48px; }
}

@media (max-width: 640px) {
  :root { --gutter: 20px; --section: 64px; }
  .nav__inner { height: 64px; }
  .nav__cta { padding: 10px 16px; font-size: 14px; }
  .nav__cta i { display: none; }
  .hero__sub { font-size: 16px; }
  .chooser { padding: 16px; border-radius: 22px; }
  .chooser__q { font-size: 20px; }
  .chooser__txt strong { font-size: 16px; }
  .chooser__txt small { display: none; }
  .chooser__icon { width: 36px; height: 36px; font-size: 18px; }
  .hero__mascot { height: 300px; width: 350px; }
  .hero__disk { left: 55px; top: 40px; width: 260px; height: 260px; }
  .hero__camelon { left: 20px; width: 306px; }
  .proof__years strong { font-size: 30px; }
  .proof__logos { font-size: 16px; flex-wrap: wrap; gap: 8px 20px; justify-content: flex-start; }
  .proof__sep { display: none; }
  .tabs { align-self: stretch; overflow-x: auto; scrollbar-width: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tabs button { flex: none; white-space: nowrap; padding: 10px 16px; font-size: 14px; }
  .chips li { padding: 12px; font-size: 14px; }
  .panel { padding: 12px; }
  .panel__txt h3 { font-size: 24px; }
  .panel__txt p { font-size: 15px; }
  .steps { grid-template-columns: 1fr; row-gap: 56px; }
  .review--big p { font-size: 20px; }
  .works__head { flex-direction: column; align-items: flex-start; }
  .contact__card { padding: 20px; border-radius: 24px; }
  .form { padding: 18px; }
}

/* Mouvement réduit : pas d'animation, tout le contenu visible */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  .js-anim .reveal { opacity: 1; }
}