/* ============================================================
   Agenia — Feuille de style
   Style : agence IA, thème sombre, dégradés, glassmorphism
   ============================================================ */

:root {
  --bg: #070b18;
  --bg-2: #0a1024;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);

  --text: #eef1fb;
  --text-muted: #9aa3c4;
  --text-dim: #6b7398;

  --accent-1: #6d8bff;   /* bleu */
  --accent-2: #b06bff;   /* violet */
  --accent-3: #35d6c3;   /* cyan/teal */

  --grad: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  --grad-soft: linear-gradient(120deg, rgba(109,139,255,.16), rgba(176,107,255,.16));

  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.7);
  --maxw: 1160px;

  --font-head: "Sora", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.15; margin: 0; letter-spacing: -0.02em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Ambient background ---------- */
.bg-orbs { position: fixed; inset: 0; z-index: -1; overflow: hidden; background:
  radial-gradient(1200px 600px at 80% -10%, rgba(109,139,255,.10), transparent 60%),
  radial-gradient(1000px 500px at 0% 20%, rgba(176,107,255,.08), transparent 55%),
  var(--bg);
}
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; }
.orb--1 { width: 520px; height: 520px; top: -120px; right: -80px; background: radial-gradient(circle, rgba(109,139,255,.55), transparent 70%); }
.orb--2 { width: 460px; height: 460px; top: 40%; left: -140px; background: radial-gradient(circle, rgba(176,107,255,.45), transparent 70%); }
.orb--3 { width: 400px; height: 400px; bottom: -160px; right: 20%; background: radial-gradient(circle, rgba(53,214,195,.30), transparent 70%); }
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 75%);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: .95rem;
  font-family: var(--font-head); letter-spacing: -0.01em;
  cursor: pointer; border: 1px solid transparent; transition: transform .2s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn--primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 10px 30px -10px rgba(109,139,255,.7);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 38px -12px rgba(140,120,255,.8); }
.btn--ghost {
  background: var(--surface); color: var(--text); border-color: var(--border-strong);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover { background: var(--surface-2); transform: translateY(-2px); }
.btn--lg { padding: 15px 30px; font-size: 1.02rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(7, 11, 24, 0.55);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background .3s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--border); background: rgba(7, 11, 24, 0.8); }
.header__inner { display: flex; align-items: center; gap: 24px; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 700; font-size: 1.2rem; }
.brand__mark { display: inline-flex; }
.brand__logo { height: 64px; width: 64px; display: block; object-fit: contain; }
.brand--footer .brand__logo { height: 58px; width: 58px; }
.nav { display: flex; gap: 6px; margin-left: 12px; }
.nav a {
  padding: 8px 14px; border-radius: 999px; color: var(--text-muted); font-size: .94rem; font-weight: 500;
  transition: color .2s ease, background .2s ease;
}
.nav a:hover { color: var(--text); background: var(--surface); }
.header__cta { margin-left: auto; }

.nav-toggle { display: none; margin-left: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; width: 44px; height: 40px; flex-direction: column; gap: 5px; align-items: center; justify-content: center; cursor: pointer; }
.nav-toggle span { width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu { display: none; flex-direction: column; gap: 6px; padding: 16px 24px 24px; border-bottom: 1px solid var(--border); background: rgba(7,11,24,.96); }
.mobile-menu a { padding: 12px 14px; border-radius: 10px; color: var(--text-muted); font-weight: 500; }
.mobile-menu a:hover { background: var(--surface); color: var(--text); }
.mobile-menu .btn { margin-top: 8px; }

/* ---------- Hero ---------- */
.hero { padding: clamp(64px, 12vw, 130px) 0 60px; }
.hero__inner { max-width: 860px; }
.pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px; border-radius: 999px; font-size: .84rem; font-weight: 500;
  color: var(--text-muted); background: var(--surface); border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.pill__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-3); box-shadow: 0 0 12px 2px rgba(53,214,195,.7); }
.hero__title { font-size: clamp(2.3rem, 6vw, 4.1rem); font-weight: 800; margin: 22px 0 0; }
.hero__lead { font-size: clamp(1.05rem, 2.2vw, 1.28rem); color: var(--text-muted); margin: 22px 0 0; max-width: 660px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero__stats { list-style: none; margin: 54px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 720px; }
.hero__stats li { display: flex; flex-direction: column; gap: 4px; padding-left: 18px; border-left: 2px solid var(--border-strong); }
.hero__stats strong { font-family: var(--font-head); font-size: clamp(1.5rem, 3.4vw, 2rem); font-weight: 700; }
.hero__stats span { color: var(--text-dim); font-size: .9rem; }

/* ---------- Trust strip ---------- */
.trust { padding: 22px 0 12px; }
.trust__label { color: var(--text-dim); font-size: .9rem; text-align: center; margin: 0 0 18px; }
.trust__logos { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 14px; }
.trust__logos span {
  padding: 9px 16px; border-radius: 999px; font-size: .9rem; font-weight: 500;
  color: var(--text-muted); background: var(--surface); border: 1px solid var(--border);
}

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 10vw, 110px) 0; }
.section--alt { position: relative; }
.section--alt::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,.015), transparent);
}
.section__head { max-width: 680px; margin: 0 auto 54px; text-align: center; }
.eyebrow {
  display: inline-block; font-family: var(--font-head); font-weight: 600; font-size: .8rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--accent-1); margin-bottom: 14px;
}
.section__title { font-size: clamp(1.7rem, 4vw, 2.6rem); font-weight: 700; }
.section__sub { color: var(--text-muted); font-size: 1.05rem; margin-top: 16px; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card {
  position: relative; padding: 30px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border); overflow: hidden;
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
}
.card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .3s ease; pointer-events: none;
}
.card:hover { transform: translateY(-6px); background: var(--surface-2); }
.card:hover::after { opacity: .5; }
.card__icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid var(--border); color: var(--accent-1); margin-bottom: 20px;
}
.card__icon svg { width: 26px; height: 26px; fill: none; }
.card h3 { font-size: 1.28rem; font-weight: 600; margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: .98rem; margin: 0 0 16px; }
.card__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.card__list li { position: relative; padding-left: 24px; color: var(--text-muted); font-size: .92rem; }
.card__list li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--grad-soft); border: 1px solid var(--accent-1);
}

/* ---------- Steps ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step {
  position: relative; padding: 28px 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .3s ease, border-color .3s ease;
}
.step:hover { transform: translateY(-5px); border-color: var(--border-strong); }
.step__num {
  font-family: var(--font-head); font-weight: 800; font-size: 2.2rem; line-height: 1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  display: block; margin-bottom: 16px;
}
.step h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; }
.step p { color: var(--text-muted); font-size: .93rem; margin: 0; }

/* ---------- Résultats ---------- */
.results { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.results__text .btn { margin-top: 26px; }
.results__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.stat {
  padding: 26px 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
}
.stat strong { display: block; font-family: var(--font-head); font-size: 2.4rem; font-weight: 800; line-height: 1; margin-bottom: 10px; }
.stat span { color: var(--text-muted); font-size: .92rem; }

/* ---------- Secteurs ---------- */
.sectors { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.sectors span {
  padding: 12px 22px; border-radius: 999px; font-weight: 500; color: var(--text);
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.sectors span:hover { transform: translateY(-3px); border-color: var(--accent-1); background: var(--grad-soft); }

/* ---------- CTA band ---------- */
.cta-band { padding: 20px 0 60px; }
.cta-band__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
  padding: 44px; border-radius: 26px;
  background: var(--grad-soft); border: 1px solid var(--border-strong);
  position: relative; overflow: hidden;
}
.cta-band__inner::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(600px 200px at 20% 0%, rgba(109,139,255,.25), transparent 60%);
}
.cta-band h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); font-weight: 700; }
.cta-band p { color: var(--text-muted); margin: 8px 0 0; }

/* ---------- FAQ ---------- */
.faq { max-width: 780px; }
.faq__list { display: flex; flex-direction: column; gap: 12px; }
.faq__item {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); padding: 4px 20px; transition: border-color .25s ease, background .25s ease;
}
.faq__item[open] { border-color: var(--border-strong); background: var(--surface-2); }
.faq__item summary {
  cursor: pointer; list-style: none; padding: 16px 0; font-family: var(--font-head);
  font-weight: 600; font-size: 1.05rem; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; font-size: 1.5rem; color: var(--accent-1); transition: transform .25s ease; line-height: 1; }
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { color: var(--text-muted); margin: 0 0 18px; }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.contact__meta { list-style: none; margin: 28px 0 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.contact__meta li { display: flex; align-items: center; gap: 14px; }
.contact__ico {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid var(--border); font-size: 1.1rem;
}
.contact__meta a { color: var(--text); font-weight: 500; }
.contact__meta a:hover { color: var(--accent-1); }

.contact__form {
  padding: 32px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 18px;
}
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: .88rem; font-weight: 500; color: var(--text-muted); }
.field input, .field textarea {
  width: 100%; padding: 13px 15px; border-radius: 11px;
  background: rgba(0,0,0,.25); border: 1px solid var(--border); color: var(--text);
  font-family: var(--font-body); font-size: .98rem; resize: vertical; transition: border-color .2s ease, box-shadow .2s ease;
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-dim); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent-1); box-shadow: 0 0 0 3px rgba(109,139,255,.18); }
.form__note { font-size: .9rem; margin: 4px 0 0; min-height: 1.2em; color: var(--accent-3); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 56px 0 28px; }
.footer__inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 40px; }
.footer__brand p { color: var(--text-muted); font-size: .95rem; margin: 16px 0 0; max-width: 320px; }
.footer__nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer__nav h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-dim); margin-bottom: 14px; }
.footer__nav a { display: block; color: var(--text-muted); font-size: .93rem; padding: 5px 0; }
.footer__nav a:hover { color: var(--text); }
.footer__bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--border);
  color: var(--text-dim); font-size: .88rem;
}
.footer__legal a:hover { color: var(--text); }

/* ---------- Reveal animation ----------
   Le masquage n'est appliqué que si JS est actif (classe .js sur <html>),
   afin que le contenu reste visible sans JavaScript (SEO / accessibilité). */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav, .header__cta { display: none; }
  .nav-toggle { display: flex; }
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .results { grid-template-columns: 1fr; gap: 32px; }
  .contact { grid-template-columns: 1fr; gap: 32px; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 560px) {
  .hero__stats { grid-template-columns: 1fr; gap: 16px; }
  .steps { grid-template-columns: 1fr; }
  .results__grid { grid-template-columns: 1fr; }
  .footer__nav { grid-template-columns: 1fr 1fr; }
  .cta-band__inner { padding: 32px 24px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card, .step, .sectors span { transition: none; }
}