/* =============================================================
   ALLISON FLORY — Coiffure mariage & formation
   style.css — Design system + header + footer (commun à toutes les pages)
   ============================================================= */

/* ---------- 1. TOKENS ---------- */
:root {
  /* Couleurs */
  --bg:          #faf8f5;   /* blanc cassé, fond principal */
  --white:       #ffffff;
  --ink:         #141414;   /* noir profond, texte */
  --ink-soft:    #56514b;   /* texte secondaire */
  --ink-faint:   #8a847c;   /* légendes */
  --gold:        #c2a36b;   /* doré élégant, mat */
  --gold-deep:   #a8884e;   /* doré contrasté (texte sur clair) */
  --line:        rgba(20, 20, 20, 0.12);
  --line-soft:   rgba(20, 20, 20, 0.07);
  --overlay:     rgba(18, 16, 14, 0.42);

  /* Typo */
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans:  "Jost", "Helvetica Neue", Arial, sans-serif;

  /* Mesures */
  --container: 1240px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --header-h: 88px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --slow: 0.6s var(--ease);
}

/* ---------- 2. RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, video, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }

/* ---------- 3. TYPOGRAPHIE ---------- */
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 300; line-height: 1.08; letter-spacing: 0.005em; }

.display {
  font-size: clamp(2.8rem, 7vw, 6rem);
  font-weight: 300;
}
.h2 { font-size: clamp(2.1rem, 4.4vw, 3.6rem); }
.h3 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-soft);
  line-height: 1.8;
  font-weight: 300;
}

/* Eyebrow / surtitre */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.8em;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold-deep);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gold);
}
.eyebrow.is-centered::before { display: none; }

em, .serif-italic { font-family: var(--serif); font-style: italic; }

/* ---------- 4. LAYOUT ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: clamp(4.5rem, 9vw, 8.5rem); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

/* Filet doré — signature graphique récurrente */
.rule-gold {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-block: clamp(2rem, 5vw, 3.5rem);
}
.rule-gold::before, .rule-gold::after {
  content: "";
  height: 1px;
  flex: 1;
  max-width: 120px;
  background: linear-gradient(90deg, transparent, var(--gold));
}
.rule-gold::after { background: linear-gradient(90deg, var(--gold), transparent); }
.rule-gold .diamond {
  width: 7px; height: 7px;
  background: var(--gold);
  transform: rotate(45deg);
}

/* ---------- 5. BOUTONS ---------- */
.btn {
  --bw: 1px;
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 1.05em 2.2em;
  position: relative;
  transition: color var(--ease) 0.4s, background var(--ease) 0.4s, border-color var(--ease) 0.4s;
}
.btn--solid {
  background: var(--ink);
  color: var(--bg);
  border: var(--bw) solid var(--ink);
}
.btn--solid:hover { background: var(--gold-deep); border-color: var(--gold-deep); }
.btn--outline {
  border: var(--bw) solid var(--ink);
  color: var(--ink);
}
.btn--outline:hover { background: var(--ink); color: var(--bg); }
.btn--ghost-light {
  border: var(--bw) solid rgba(255,255,255,0.5);
  color: var(--white);
}
.btn--ghost-light:hover { background: var(--white); color: var(--ink); border-color: var(--white); }

/* Lien texte avec soulignement doré animé */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  position: relative;
}
.link-arrow span { position: relative; }
.link-arrow span::after {
  content: "";
  position: absolute; left: 0; bottom: -4px;
  width: 100%; height: 1px;
  background: var(--gold);
  transform: scaleX(0); transform-origin: right;
  transition: transform var(--ease) 0.45s;
}
.link-arrow:hover span::after { transform: scaleX(1); transform-origin: left; }
.link-arrow .arrow { transition: transform var(--ease) 0.4s; color: var(--gold-deep); }
.link-arrow:hover .arrow { transform: translateX(5px); }

/* ---------- 6. LOGO (signature) ---------- */
.logo { display: inline-flex; flex-direction: column; align-items: flex-start; line-height: 1; }
.logo__sig {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  font-size: 1.7rem;
  letter-spacing: 0.015em;
  color: var(--ink);
}
.logo__swash {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), rgba(194,163,107,0));
  margin: 0.38em 0 0.42em;
}
.logo__tag {
  font-family: var(--sans);
  font-size: 0.55rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

/* ---------- 7. HEADER ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--ease) 0.5s, box-shadow var(--ease) 0.5s, border-color var(--ease) 0.5s;
  border-bottom: 1px solid transparent;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* ===== ÉTAT TRANSPARENT : hero visible, pas encore scrollé ===== */
body.has-hero .site-header:not(.is-solid) { background: transparent; }
/* Voile dégradé pour garantir le contraste du texte blanc sur tout média */
body.has-hero .site-header:not(.is-solid)::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(18,16,14,0.55), rgba(18,16,14,0.12));
}
body.has-hero .site-header:not(.is-solid) .logo__sig,
body.has-hero .site-header:not(.is-solid) .nav-link { color: var(--white); }
body.has-hero .site-header:not(.is-solid) .logo__tag { color: rgba(255,255,255,0.82); }
body.has-hero .site-header:not(.is-solid) .burger span { background: var(--white); }
/* Bouton Contact en contour clair sur le hero */
body.has-hero .site-header:not(.is-solid) .nav__contact .btn {
  border-color: rgba(255,255,255,0.55);
  color: var(--white);
}
body.has-hero .site-header:not(.is-solid) .nav__contact .btn:hover {
  background: var(--white);
  color: var(--ink);
  border-color: var(--white);
}

/* ===== ÉTAT SOLIDE : après scroll OU pages sans hero ===== */
.site-header.is-solid,
body:not(.has-hero) .site-header {
  background: rgba(250, 248, 245, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
  box-shadow: 0 10px 30px -24px rgba(20, 20, 20, 0.45);
}
.site-header.is-solid .logo__sig,
body:not(.has-hero) .site-header .logo__sig { color: var(--ink); }
.site-header.is-solid .logo__tag,
body:not(.has-hero) .site-header .logo__tag { color: var(--gold-deep); }
.site-header.is-solid .nav-link,
body:not(.has-hero) .site-header .nav-link { color: var(--ink); }
.site-header.is-solid .burger span,
body:not(.has-hero) .site-header .burger span { background: var(--ink); }

/* Navigation desktop */
.nav { display: flex; align-items: center; gap: clamp(1.5rem, 2.5vw, 2.6rem); }
.nav-link {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: relative;
  padding-block: 0.4em;
  transition: color var(--ease) 0.3s;
}
.nav-link::after {
  content: "";
  position: absolute; left: 50%; bottom: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transform: translateX(-50%);
  transition: width var(--ease) 0.35s;
}
.nav-link:hover::after,
.nav-link.is-active::after { width: 18px; }
.nav-link.is-active { color: var(--gold-deep); }
.nav__contact { margin-left: 0.5rem; }
.nav__contact .btn { padding: 0.85em 1.8em; }

/* Burger */
.burger {
  display: none;
  width: 30px; height: 22px;
  position: relative;
  z-index: 120;
}
.burger span {
  position: absolute; left: 0;
  width: 100%; height: 1.5px;
  background: var(--ink);
  transition: transform var(--ease) 0.4s, opacity var(--ease) 0.3s, background var(--ease) 0.4s;
}
.burger span:nth-child(1) { top: 2px; }
.burger span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.burger span:nth-child(3) { bottom: 2px; }
body.menu-open .burger span { background: var(--ink); }
body.menu-open .burger span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
body.menu-open .burger span:nth-child(2) { opacity: 0; }
body.menu-open .burger span:nth-child(3) { bottom: auto; top: 50%; transform: translateY(-50%) rotate(-45deg); }

/* Menu mobile plein écran */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--gutter);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease), visibility 0.45s;
}
body.menu-open .mobile-nav { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-nav ul { display: flex; flex-direction: column; gap: 0.4rem; }
.mobile-nav a {
  font-family: var(--serif);
  font-size: clamp(2rem, 9vw, 3rem);
  font-weight: 300;
  color: var(--ink);
  padding-block: 0.3rem;
  display: inline-flex;
  align-items: baseline;
  gap: 1rem;
  opacity: 0;
  transform: translateY(14px);
}
body.menu-open .mobile-nav a { animation: navIn 0.5s var(--ease) forwards; }
.mobile-nav li:nth-child(1) a { animation-delay: 0.08s; }
.mobile-nav li:nth-child(2) a { animation-delay: 0.14s; }
.mobile-nav li:nth-child(3) a { animation-delay: 0.20s; }
.mobile-nav li:nth-child(4) a { animation-delay: 0.26s; }
.mobile-nav li:nth-child(5) a { animation-delay: 0.32s; }
.mobile-nav li:nth-child(6) a { animation-delay: 0.38s; }
.mobile-nav a .num {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
  transform: translateY(-0.4em);
}
.mobile-nav a.is-active { color: var(--gold-deep); }
.mobile-nav__foot {
  margin-top: 2.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
@keyframes navIn { to { opacity: 1; transform: translateY(0); } }

/* ---------- 8. FOOTER ---------- */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.78);
  padding-block: clamp(3.5rem, 7vw, 6rem) 2.5rem;
}
.site-footer a { color: rgba(255,255,255,0.78); transition: color var(--ease) 0.3s; }
.site-footer a:hover { color: var(--gold); }
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer__brand .logo__sig { color: var(--white); }
.footer__brand p {
  margin-top: 1.4rem;
  max-width: 34ch;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
}
.footer__col h4 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.4rem;
}
.footer__col ul { display: flex; flex-direction: column; gap: 0.7rem; }
.footer__col li { font-size: 0.92rem; }
.footer__social { display: flex; gap: 1.2rem; margin-top: 0.4rem; }
.footer__social a {
  width: 40px; height: 40px;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 50%;
  display: grid; place-items: center;
  transition: border-color var(--ease) 0.3s, color var(--ease) 0.3s;
}
.footer__social a:hover { border-color: var(--gold); color: var(--gold); }
.footer__social svg { width: 17px; height: 17px; }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.45);
}
.footer__bottom .lang { display: flex; gap: 0.8rem; }
.footer__bottom .lang a.is-active { color: var(--gold); }

/* ---------- 9. REVEAL (scroll) ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  will-change: opacity, transform;
}
[data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: 0.1s; }
[data-reveal-delay="2"] { transition-delay: 0.2s; }
[data-reveal-delay="3"] { transition-delay: 0.3s; }

/* ---------- 10. PLACEHOLDERS MEDIA ---------- */
.ph {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #ece7e0, #f4f0ea 50%, #e6ddd0);
  display: grid;
  place-items: center;
}
.ph::after {
  content: attr(data-label);
  font-family: var(--sans);
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.ph--shimmer::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
  transform: translateX(-100%);
  animation: shimmer 2.6s infinite;
}
@keyframes shimmer { 100% { transform: translateX(100%); } }

/* ---------- 11. RESPONSIVE ---------- */
@media (max-width: 900px) {
  :root { --header-h: 74px; }
  .nav { display: none; }
  .burger { display: block; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { justify-content: flex-start; }
}

/* ---------- 12. ACCESSIBILITÉ ---------- */
:focus-visible { outline: 2px solid var(--gold-deep); outline-offset: 3px; }
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--bg);
  padding: 0.8em 1.4em; font-size: 0.8rem; letter-spacing: 0.1em;
}
.skip-link:focus { left: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}