/* DEVNOVATION - feuille de style (mobile d'abord) */
:root {
  --violet: #5A3E92;
  --violet-dark: #472f75;
  --turquoise: #00B5CA;
  --text: #4A4A5A;
  --bg: #ffffff;
  --bg-soft: #f6f4fa;
  --border: #e3dff0;
  --radius: 14px;
  --max: 1120px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--violet); }
h1, h2, h3 { color: var(--violet); line-height: 1.2; margin: 0 0 .6em; }
h1 { font-size: clamp(1.9rem, 5.5vw, 3.1rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 4vw, 2.2rem); font-weight: 750; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.section { padding: 64px 0; }
.section--soft { background: var(--bg-soft); }
.section__title { position: relative; padding-bottom: 14px; margin-bottom: 28px; }
.section__title::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 56px; height: 4px; border-radius: 4px; background: var(--turquoise);
}

.skip-link {
  position: absolute; left: -999px; top: 8px; background: var(--violet); color: #fff;
  padding: 8px 14px; border-radius: 8px; z-index: 200;
}
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--turquoise); outline-offset: 3px; }

/* Boutons */
.btn {
  display: inline-block; padding: 14px 26px; border-radius: 10px; font: inherit;
  font-weight: 700; text-decoration: none; cursor: pointer; border: 2px solid var(--violet);
  transition: background .2s, color .2s, transform .2s;
}
.btn--primary { background: var(--violet); color: #fff; }
.btn--primary:hover { background: var(--violet-dark); border-color: var(--violet-dark); }
.btn--ghost { background: transparent; color: var(--violet); }
.btn--ghost:hover { background: var(--violet); color: #fff; }

/* En-tête */
.site-header {
  position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--border); backdrop-filter: blur(6px);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; min-height: 64px; }
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { height: 44px; width: auto; }

.nav-toggle {
  display: inline-flex; flex-direction: column; gap: 5px; padding: 10px; background: none;
  border: 0; cursor: pointer;
}
.nav-toggle span { width: 24px; height: 3px; border-radius: 3px; background: var(--violet); }
.nav {
  display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff;
  border-bottom: 1px solid var(--border); padding: 8px 16px 16px;
}
.nav.is-open { display: block; }
.nav ul { list-style: none; margin: 0; padding: 0; }
.nav a {
  display: block; padding: 12px 4px; text-decoration: none; color: var(--text);
  font-weight: 700; font-size: .85rem; letter-spacing: .08em;
}
.nav a:hover { color: var(--violet); }

/* Hero */
.hero {
  padding: 80px 0 90px; color: #fff;
  background:
    linear-gradient(90deg, rgba(43,26,84,.92) 0%, rgba(43,26,84,.55) 55%, rgba(43,26,84,0) 100%),
    url("../img/hero-bg.svg") center / cover no-repeat,
    linear-gradient(135deg, #3a2668, var(--violet));
}
.hero h1 { color: #fff; max-width: 18ch; }
.hero__sub { font-size: 1.15rem; max-width: 60ch; margin-bottom: 2em; color: #f1edf9; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero .btn--primary { background: #fff; color: var(--violet); border-color: #fff; }
.hero .btn--primary:hover { background: #eae5f5; border-color: #eae5f5; }
.hero .btn--ghost { color: #fff; border-color: #fff; }
.hero .btn--ghost:hover { background: #fff; color: var(--violet); }

/* Qui sommes-nous */
.about { max-width: 70ch; }
.about p:last-child { font-weight: 600; color: var(--violet); }

/* Services */
.cards { display: grid; gap: 20px; }
.card {
  background: #fff; border: 1px solid var(--border); border-top: 4px solid var(--turquoise);
  border-radius: var(--radius); padding: 28px 24px; box-shadow: 0 6px 22px rgba(90,62,146,.07);
}
.card__icon { width: 48px; height: 48px; color: var(--violet); margin-bottom: 16px; }
.card p { margin: 0; }
.extras {
  list-style: none; margin: 36px 0 0; padding: 20px 0 0; border-top: 1px solid var(--border);
  display: grid; gap: 12px; font-size: .98rem;
}
.extras strong { color: var(--violet); }

/* Comment ça marche */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; counter-reset: step; }
.steps li {
  counter-increment: step; position: relative; background: #fff; border-radius: var(--radius);
  border: 1px solid var(--border); padding: 24px 24px 24px 84px;
}
.steps li::before {
  content: counter(step); position: absolute; left: 22px; top: 22px; width: 44px; height: 44px;
  border-radius: 50%; background: var(--violet); color: #fff; font-weight: 800; font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center; box-shadow: 0 0 0 4px rgba(0,181,202,.35);
}
.steps strong { display: block; color: var(--violet); font-size: 1.15rem; margin-bottom: 2px; }

/* Pourquoi */
.why { display: grid; gap: 20px; }
.why__item { border-left: 4px solid var(--turquoise); padding: 4px 0 4px 18px; }
.why__item h3 { margin-bottom: .3em; }
.why__item p { margin: 0; }

/* Pied de page */
.site-footer { background: var(--violet); color: #fff; padding: 28px 0; font-size: .95rem; }
.site-footer a { color: #fff; }
.site-footer .container { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

@media (min-width: 860px) {
  .section { padding: 96px 0; }
  .hero { padding: 130px 0 140px; }
  .cards { grid-template-columns: repeat(3, 1fr); gap: 28px; }
  .extras { grid-template-columns: repeat(3, 1fr); gap: 28px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .why { grid-template-columns: repeat(4, 1fr); gap: 28px; }
  .nav-toggle { display: none; }
  .nav { display: block; position: static; border: 0; padding: 0; background: none; }
  .nav ul { display: flex; gap: 20px; }
  .nav a { font-size: .78rem; }
  .nav a { padding: 8px 0; border-bottom: 3px solid transparent; }
  .nav a:hover { border-bottom-color: var(--turquoise); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* Contact */
.contact { display: grid; gap: 40px; }
.coords { list-style: none; margin: 24px 0 0; padding: 0; display: grid; gap: 12px; }
.coords span { display: block; font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--violet); }
.form { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 700; margin-bottom: 6px; color: var(--violet); }
.field input[type="text"], .field input[type="email"], .field input[type="tel"], .field textarea {
  width: 100%; font: inherit; color: var(--text); padding: 12px 14px; border: 1.5px solid #b9b3cc;
  border-radius: 10px; background: #fff;
}
.field input:focus, .field textarea:focus { outline: 3px solid var(--turquoise); outline-offset: 1px; border-color: var(--violet); }
.field--check { display: grid; grid-template-columns: 22px 1fr; gap: 0 10px; align-items: start; }
.field--check input { width: 20px; height: 20px; margin: 4px 0 0; accent-color: var(--violet); }
.field--check label { font-weight: 400; color: var(--text); margin: 0; }
.field--check .field__error { grid-column: 2; }
.field__error { display: block; color: #b3261e; font-size: .9rem; margin-top: 4px; }
.field__error:empty { display: none; }
.field.has-error input:not([type="checkbox"]), .field.has-error textarea { border-color: #b3261e; }
.alert { margin: 0 0 18px; padding: 14px 16px; border-radius: 10px; font-weight: 600; }
.alert--ok { background: #e6f7f9; color: #0b5560; border: 1px solid var(--turquoise); }
.alert--error { background: #fdecea; color: #8c1d18; border: 1px solid #e5a29d; }
.form__status:empty { display: none; }
.form__status:focus { outline: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.btn[disabled] { opacity: .65; cursor: wait; }
.page-legal h1 { font-size: clamp(1.7rem, 4vw, 2.3rem); }
.page-legal h2 { font-size: 1.25rem; margin-top: 1.8em; }
.site-footer a { margin-right: 0; }

@media (min-width: 860px) {
  .contact { grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
  .form { padding: 32px; }
}