/* =========================================================================
   ODYSSEO — styles.css
   Thème clair & éditorial : fond crème, texte navy, accents orange.
   Charte (couleurs/polices) → voir tokens.css.

   Sommaire
     1.  Base & réinitialisation
     2.  Utilitaires (wrap, eyebrow, accessibilité, animations)
     3.  Boutons
     4.  En-tête / navigation / menu mobile
     5.  Hero
     6.  Features (blocs alternés)
     7.  Newsletter (CTA)
     8.  Formulaires
     9.  Pied de page
     10. Mouvement réduit & responsive
   ========================================================================= */

/* ============================ 1. BASE ================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-optical-sizing: auto;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration-thickness: 1.5px; text-underline-offset: 2px; }
button { font: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.015em;
}

::selection { background: var(--color-orange); color: #fff; }

:focus-visible {
  outline: 3px solid var(--color-orange);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ========================= 2. UTILITAIRES ============================== */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--pad-x); }

.section { padding-block: clamp(64px, 9vw, 120px); }

/* Décalage d'ancrage : la barre fixe ne recouvre pas la cible d'un lien #ancre */
:where(section, footer)[id] { scroll-margin-top: calc(var(--nav-height) + 16px); }

.eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin: 0 0 14px;
}

/* Lien d'évitement (accessibilité clavier) */
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--color-navy); color: var(--color-on-dark);
  padding: 10px 16px; border-radius: 10px; text-decoration: none;
  transition: top .2s;
}
.skip-link:focus { top: 12px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Révélation au défilement (progressive enhancement) */
[data-reveal] {
  opacity: 0; transform: translateY(20px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* Apparition du hero au chargement (échelonnée via style="animation-delay") */
.anim-rise { opacity: 0; animation: rise .85s cubic-bezier(.2,.7,.2,1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.anim-fade { opacity: 0; animation: fade 1s ease .6s both; }
@keyframes fade { to { opacity: 1; } }

/* Repli sans JavaScript : tout le contenu reste visible */
.no-js [data-reveal], .no-js .anim-rise, .no-js .anim-fade {
  opacity: 1; transform: none; animation: none;
}

/* ============================ 3. BOUTONS =============================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--font-display); font-weight: 600; font-size: 1rem;
  line-height: 1; text-decoration: none; white-space: nowrap; cursor: pointer;
  padding: 15px 26px; border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  transition: transform .16s ease, background-color .18s ease, border-color .18s ease, color .18s ease;
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--color-orange-btn); color: #fff; }
.btn--primary:hover { background: var(--color-orange-hover); }

.btn--ghost { background: transparent; border-color: var(--color-line); color: var(--color-ink); }
.btn--ghost:hover { border-color: var(--color-ink); }

.btn--block { width: 100%; }

/* Variantes sur fond foncé */
.on-dark .btn--ghost { border-color: var(--color-line-dark); color: var(--color-on-dark); }
.on-dark .btn--ghost:hover { border-color: var(--color-on-dark); }

/* ================= 4. EN-TÊTE / NAVIGATION / MENU ===================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-height);
  background: color-mix(in srgb, var(--color-cream) 85%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background-color .25s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--color-line); }

.nav { display: flex; align-items: center; gap: 24px; height: 100%; }

.logo {
  font-family: var(--font-display); font-weight: 700; font-size: 1.6rem;
  letter-spacing: -0.02em; color: var(--color-ink); text-decoration: none;
  display: inline-flex; align-items: baseline; line-height: 1;
}
.logo__o { color: var(--color-orange); }
.logo:hover { color: var(--color-ink); }

.nav__spacer { flex: 1; }

.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__link {
  font-family: var(--font-display); font-weight: 500; font-size: 0.98rem;
  color: var(--color-ink-soft); text-decoration: none; position: relative;
  padding-block: 6px; transition: color .18s ease;
}
.nav__link:hover { color: var(--color-ink); }
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--color-orange); transition: width .22s ease;
}
.nav__link:hover::after, .nav__link[aria-current="page"]::after { width: 100%; }

/* Sélecteur de langue */
.lang {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.9rem;
}
.lang a { color: var(--color-ink-dim); text-decoration: none; padding: 4px 6px; border-radius: 8px; }
.lang a[aria-current="true"] { color: var(--color-ink); }
.lang a:hover { color: var(--color-orange); }
.lang__sep { color: var(--color-line); }

/* Burger (mobile) */
.nav__toggle {
  display: none; align-items: center; justify-content: center;
  width: 44px; height: 44px; border: 1.5px solid var(--color-line);
  background: transparent; border-radius: 12px; cursor: pointer;
}
.nav__toggle svg { width: 22px; height: 22px; stroke: var(--color-ink); }

/* Menu mobile plein écran */
.mobile-menu {
  position: fixed; inset: 0; z-index: 150;
  background: var(--color-navy); color: var(--color-on-dark);
  display: flex; flex-direction: column; padding: 22px var(--pad-x) 40px;
  transform: translateY(-100%); transition: transform .32s cubic-bezier(.4,0,.2,1);
  visibility: hidden;
}
.mobile-menu.is-open { transform: none; visibility: visible; }
.mobile-menu__top { display: flex; align-items: center; justify-content: space-between; height: var(--nav-height); }
.mobile-menu__top .logo, .mobile-menu__top .logo:hover { color: var(--color-on-dark); }
.mobile-menu__close {
  width: 44px; height: 44px; border: 1.5px solid var(--color-line-dark);
  background: transparent; border-radius: 12px; cursor: pointer;
}
.mobile-menu__close svg { width: 22px; height: 22px; stroke: var(--color-on-dark); margin-inline: auto; }
.mobile-menu__links { display: flex; flex-direction: column; gap: 6px; margin-top: 32px; }
.mobile-menu__links a {
  font-family: var(--font-display); font-weight: 600; font-size: 1.6rem;
  color: var(--color-on-dark); text-decoration: none; padding: 12px 0;
  border-bottom: 1px solid var(--color-line-dark);
}
.mobile-menu__links a:hover { color: var(--color-orange); }
.mobile-menu__foot { margin-top: auto; display: flex; align-items: center; gap: 18px; }
.mobile-menu .lang a { color: var(--color-on-dark-soft); }
.mobile-menu .lang a[aria-current="true"] { color: var(--color-on-dark); }

/* ============================== 5. HERO =============================== */
.hero { position: relative; overflow: hidden; padding-block: clamp(56px, 8vw, 104px) clamp(64px, 9vw, 120px); }
.hero__glow {
  position: absolute; z-index: 0; pointer-events: none;
  width: 60vw; max-width: 720px; aspect-ratio: 1; right: -12%; top: -14%;
  background: radial-gradient(circle, rgba(227,83,31,0.16), transparent 62%);
  filter: blur(8px);
}
.hero__grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 5vw, 64px);
  align-items: center;
}
.hero__eyebrow { color: var(--color-orange); }
.hero__title {
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  color: var(--color-ink); margin: 0 0 20px; max-width: 14ch;
}
.hero__title .accent { color: var(--color-orange); }
.hero__lead {
  font-size: clamp(1.05rem, 1.5vw, 1.28rem);
  color: var(--color-ink-soft); max-width: 46ch; margin: 0 0 32px;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; }

.hero__media { position: relative; }
.hero__media img, .hero__media svg {
  width: 100%; height: auto;
  filter: drop-shadow(var(--shadow-soft));
}

.hero__scroll {
  display: inline-flex; align-items: center; gap: 10px; margin-top: clamp(44px, 6vw, 72px);
  font-family: var(--font-display); font-weight: 500; font-size: 0.9rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-ink-dim); text-decoration: none;
}
.hero__scroll:hover { color: var(--color-orange); }
.hero__scroll-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border: 1.5px solid var(--color-line); border-radius: 50%;
  animation: bob 2.4s ease-in-out infinite;
}
.hero__scroll-icon svg { stroke: currentColor; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(4px); } }

/* ========================= 6. FEATURES =============================== */
.features__intro { max-width: 40ch; margin: 0 auto clamp(40px, 5vw, 68px); text-align: center; }
.features__intro h2 { font-size: clamp(1.9rem, 3.4vw, 2.9rem); color: var(--color-ink); }
.features__intro p { color: var(--color-ink-soft); margin-top: 14px; }

.feature { padding-block: clamp(40px, 5vw, 72px); }
.feature--alt { background: var(--color-cream-2); }
.feature__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 70px);
  align-items: center;
}
.feature--reverse .feature__media { order: -1; }
.feature__num {
  display: inline-block; font-family: var(--font-display); font-weight: 700;
  font-size: 1rem; color: var(--color-orange);
  border: 1.5px solid color-mix(in srgb, var(--color-orange) 35%, transparent);
  border-radius: var(--radius-pill); padding: 6px 15px; margin-bottom: 20px;
}
.feature__title { font-size: clamp(1.6rem, 3vw, 2.4rem); color: var(--color-ink); margin-bottom: 16px; }
.feature__text { color: var(--color-ink-soft); max-width: 46ch; }
.feature__list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.feature__list li { display: flex; gap: 12px; align-items: flex-start; color: var(--color-ink-soft); }
.feature__check {
  flex: 0 0 auto; width: 22px; height: 22px; margin-top: 3px;
  display: inline-flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--color-orange) 14%, transparent);
  border-radius: 50%;
}
.feature__check svg { width: 14px; height: 14px; }

.feature__media {
  border-radius: var(--radius-card); overflow: hidden;
  background: var(--color-surface); box-shadow: var(--shadow-card);
  border: 1px solid var(--color-line);
}
.feature__media img, .feature__media svg { width: 100%; display: block; }

/* ========================= 7. NEWSLETTER ============================= */
.newsletter { background: var(--color-navy); color: var(--color-on-dark); }
.newsletter__inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.newsletter .eyebrow { color: var(--color-orange); }
.newsletter__title { font-size: clamp(1.9rem, 3.6vw, 3rem); color: var(--color-on-dark); max-width: 16ch; }
.newsletter__text { color: var(--color-on-dark-soft); margin-top: 16px; max-width: 44ch; }

/* ========================= 8. FORMULAIRES =========================== */
.form-card {
  background: color-mix(in srgb, var(--color-on-dark) 6%, transparent);
  border: 1px solid var(--color-line-dark);
  border-radius: var(--radius-card);
  padding: clamp(24px, 3vw, 34px);
}
.form-card__fields { display: grid; gap: 14px; }
.field {
  width: 100%; font-family: var(--font-body); font-size: 1rem;
  color: var(--color-on-dark); background: rgba(245,238,227,0.06);
  border: 1.5px solid var(--color-line-dark); border-radius: var(--radius-input);
  padding: 14px 16px; transition: border-color .18s ease, background-color .18s ease;
}
.field::placeholder { color: var(--color-on-dark-dim); }
.field:focus { outline: none; border-color: var(--color-orange); background: rgba(245,238,227,0.10); }

.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 0.9rem; color: var(--color-on-dark-soft); }
.consent input { margin-top: 4px; accent-color: var(--color-orange); flex: 0 0 auto; }
.consent a { color: var(--color-on-dark); }

.form-msg { margin-top: 14px; font-size: 0.94rem; }
.form-msg--ok { color: #7BD88F; }
.form-msg--err { color: #FF9E86; }
.form-note { margin-top: 14px; font-size: 0.9rem; color: var(--color-on-dark-dim); }
.form-note a { color: var(--color-on-dark-soft); }

/* ========================= 9. PIED DE PAGE ========================== */
.site-footer { background: var(--color-navy-2); color: var(--color-on-dark); }
.site-footer__grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px;
  padding-block: clamp(52px, 6vw, 80px) 40px;
}
.site-footer .logo, .site-footer .logo:hover { color: var(--color-on-dark); font-size: 1.5rem; }
.footer__tagline { color: var(--color-on-dark-soft); margin-top: 14px; max-width: 34ch; font-size: 0.98rem; }
.footer__col h3 {
  font-family: var(--font-display); font-weight: 600; font-size: 0.82rem;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-on-dark-dim);
  margin-bottom: 16px;
}
.footer__col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer__col a { color: var(--color-on-dark-soft); text-decoration: none; }
.footer__col a:hover { color: var(--color-orange); }

.socials { display: flex; gap: 12px; margin-top: 16px; }
.socials a {
  width: 40px; height: 40px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1.5px solid var(--color-line-dark); color: var(--color-on-dark-soft);
  transition: border-color .18s ease, color .18s ease;
}
.socials a:hover { border-color: var(--color-orange); color: var(--color-orange); }
.socials svg { width: 18px; height: 18px; }

.site-footer__bar {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center;
  padding-block: 22px; border-top: 1px solid var(--color-line-dark);
  color: var(--color-on-dark-dim); font-size: 0.88rem;
}
.site-footer__bar a { color: var(--color-on-dark-dim); }

/* Bouton « retour en haut » */
.to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  width: 48px; height: 48px; border-radius: 50%; cursor: pointer;
  background: var(--color-orange-btn); color: #fff; border: none;
  display: inline-flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(12px) scale(.9); pointer-events: none;
  transition: opacity .25s ease, transform .25s ease, background-color .18s ease;
  box-shadow: var(--shadow-soft);
}
.to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: var(--color-orange-hover); }
.to-top svg { width: 22px; height: 22px; stroke: #fff; }

/* ================ 10. MOUVEMENT RÉDUIT & RESPONSIVE ================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

@media (max-width: 940px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__media { order: -1; max-width: 460px; margin-inline: auto; }
  .newsletter__inner { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .site-footer__col--brand { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .nav__links { display: none; }
  .nav > .lang { display: none; }
  .nav > .btn { display: none; }
  .nav__toggle { display: inline-flex; }
  .feature__grid { grid-template-columns: 1fr; gap: 26px; }
  .feature--reverse .feature__media { order: 0; }
  .feature__media { max-width: 520px; margin-inline: auto; }
}

@media (max-width: 520px) {
  :root { --pad-x: 22px; }
  body { font-size: 17px; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .hero__cta { flex-direction: column; }
}