/* Import Google Fonts pour la typographie de la marque */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Italiana&family=Manrope:wght@200;300;400;500;600&display=swap');

/* ============================================
   Champagne Billet-Milet — Feuille de style principale
   Refactorisée avec variables CSS et mode clair/sombre
   ============================================ */

/* ---------- Thèmes ---------- */
:root,
[data-theme="dark"] {
  --noir: #0d0b08;
  --noir-2: #14110c;
  --bg: #0d0b08;
  --bg-2: #14110c;
  --cream: #f3ead6;
  --cream-2: #e8dec7;
  --text: #f3ead6;
  --text-2: #e8dec7;
  --text-muted: rgba(243, 234, 214, 0.6);
  --gold: #c9a86a;
  --gold-soft: #b8965a;
  --gold-deep: #8a6d3b;
  --burgundy: #4a1820;
  --rose-pale: #e8c8c2;
  --line: rgba(201, 168, 106, 0.25);
  --surface: rgba(243, 234, 214, 0.04);
  --surface-2: rgba(243, 234, 214, 0.08);
  --shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
  --grain-opacity: 0.06;
}

[data-theme="light"] {
  --bg: #f7f1e3;
  --bg-2: #efe6d2;
  --cream: #1a1408;
  --cream-2: #2a2010;
  --text: #1a1408;
  --text-2: #2a2010;
  --text-muted: rgba(26, 20, 8, 0.65);
  --gold: #8a6d3b;
  --gold-soft: #a8865a;
  --gold-deep: #5d4720;
  --burgundy: #6b1f28;
  --rose-pale: #c89890;
  --line: rgba(138, 109, 59, 0.3);
  --surface: rgba(26, 20, 8, 0.04);
  --surface-2: rgba(26, 20, 8, 0.08);
  --shadow: 0 30px 60px rgba(60, 40, 10, 0.18);
  --grain-opacity: 0.04;
}

/* ---------- Reset & base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Manrope', sans-serif;
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color .4s ease, color .4s ease;
}

/* Film grain */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: var(--grain-opacity);
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Typo ---------- */
.display { font-family: 'Cormorant Garamond', serif; font-weight: 300; letter-spacing: -0.01em; }
.italiana { font-family: 'Italiana', serif; }
.eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 400;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  padding: 1rem 2.2rem;
  font-size: .75rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  font-weight: 500;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--gold);
  cursor: pointer;
  transition: all .35s ease;
  position: relative;
  overflow: hidden;
}
.btn:hover { background: var(--gold); color: var(--bg); }
.btn-solid { background: var(--gold); color: var(--bg); }
.btn-solid:hover { background: var(--gold-soft); border-color: var(--gold-soft); }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.5rem 4vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all .4s ease;
}
.nav.scrolled {
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding: 1rem 4vw;
}
.nav__brand {
  display: flex; align-items: center; gap: .9rem;
  font-family: 'Italiana', serif;
}
.nav__logo {
  width: 38px; height: 38px;
  border: 1px solid var(--gold);
  display: grid; place-items: center;
  color: var(--gold);
  font-size: .65rem;
  letter-spacing: .15em;
}
.nav__name { font-size: 1.1rem; letter-spacing: .15em; }
.nav__sub { font-size: .65rem; letter-spacing: .3em; color: var(--text-muted); text-transform: uppercase; }
.nav__links { display: flex; gap: 2.5rem; align-items: center; }
.nav__links a {
  font-size: .75rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-2);
  transition: color .3s ease;
  position: relative;
}
.nav__links a:hover { color: var(--gold); }
.nav__links a.cta {
  border: 1px solid var(--gold);
  padding: .6rem 1.4rem;
  color: var(--gold);
}
.nav__links a.cta:hover { background: var(--gold); color: var(--bg); }

/* Theme toggle */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--line);
  width: 38px; height: 38px;
  border-radius: 50%;
  display: grid; place-items: center;
  cursor: pointer;
  color: var(--gold);
  transition: all .3s ease;
}
.theme-toggle:hover { border-color: var(--gold); transform: rotate(20deg); }
.theme-toggle svg { width: 18px; height: 18px; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun,
:root .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon,
:root .theme-toggle .icon-moon { display: none; }

/* Burger (mobile) */
.nav__burger { display: none; background: none; border: none; color: var(--gold); cursor: pointer; }

/* ---------- Conteneurs ---------- */
.container { max-width: 1280px; margin: 0 auto; padding: 0 4vw; }
.section { padding: 8rem 4vw; position: relative; }
.section--small { padding: 5rem 4vw; }

/* ---------- Hero (page accueil) ---------- */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  position: relative;
  padding: 8rem 4vw 4rem;
  overflow: hidden;
}
.hero__inner { max-width: 1280px; margin: 0 auto; width: 100%; }
.hero__eyebrow { margin-bottom: 1.5rem; }
.hero__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 1;
  font-weight: 300;
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}
.hero__title em { font-family: 'Italiana', serif; font-style: normal; color: var(--gold); }
.hero__lead {
  max-width: 540px;
  font-size: 1.05rem;
  color: var(--text-2);
  margin-bottom: 3rem;
}
.hero__cta { display: flex; gap: 1.2rem; flex-wrap: wrap; }

/* Bubbles */
.bubbles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.bubble {
  position: absolute;
  bottom: -40px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--gold), transparent 70%);
  opacity: .35;
  animation: rise linear infinite;
}
@keyframes rise {
  0% { transform: translate(0, 0) scale(1); opacity: 0; }
  10% { opacity: .35; }
  100% { transform: translate(var(--sway, 0), -110vh) scale(1.2); opacity: 0; }
}

/* ---------- Section générique ---------- */
.section__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.1;
  font-weight: 300;
  margin-bottom: 1.5rem;
}
.section__title em { font-family: 'Italiana', serif; font-style: normal; color: var(--gold); }
.section__lead {
  max-width: 620px;
  color: var(--text-2);
  font-size: 1.05rem;
  margin-bottom: 4rem;
}

/* ---------- Marquee ---------- */
.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 1.6rem 0;
  background: var(--bg-2);
}
.marquee__inner {
  display: flex;
  gap: 4rem;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
  font-family: 'Italiana', serif;
  font-size: 1.2rem;
  letter-spacing: .2em;
  color: var(--gold);
  text-transform: uppercase;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee__item::before { content: '✦'; margin-right: 4rem; color: var(--gold-deep); }

/* ---------- Histoire / La Maison ---------- */
.story { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: center; }
.story__visual {
  aspect-ratio: 4/5;
  background:
    radial-gradient(ellipse at 50% 40%, color-mix(in srgb, var(--gold) 18%, transparent), transparent 60%),
    linear-gradient(135deg, var(--bg-2), var(--bg));
  border: 1px solid var(--line);
  position: relative;
  display: grid; place-items: center;
}
.story__visual::after {
  content: 'B·M';
  font-family: 'Italiana', serif;
  font-size: 8rem;
  color: var(--gold);
  opacity: .35;
  letter-spacing: .1em;
}
.story__signature {
  margin-top: 2.5rem;
  font-family: 'Italiana', serif;
  font-size: 1.5rem;
  color: var(--gold);
}
.story__signature small {
  display: block;
  font-family: 'Manrope', sans-serif;
  font-size: .7rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: .4rem;
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 5rem;
  padding-top: 4rem;
  border-top: 1px solid var(--line);
}
.stat__num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3rem;
  color: var(--gold);
  line-height: 1;
}
.stat__label {
  font-size: .7rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: .5rem;
}

/* ---------- Cuvées ---------- */
.cuvees { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.cuvee {
  border: 1px solid var(--line);
  padding: 3rem 2.5rem;
  background: var(--surface);
  position: relative;
  transition: all .4s ease;
}
.cuvee:hover { border-color: var(--gold); transform: translateY(-6px); box-shadow: var(--shadow); }
.cuvee__num {
  font-family: 'Italiana', serif;
  font-size: .9rem;
  color: var(--gold);
  letter-spacing: .25em;
  margin-bottom: 1.2rem;
}
.cuvee__name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  margin-bottom: .6rem;
}
.cuvee__tag {
  font-size: .7rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.cuvee__desc { color: var(--text-2); margin-bottom: 2rem; font-size: .95rem; }
.cuvee__specs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding-top: 1.5rem; border-top: 1px solid var(--line); margin-bottom: 2rem; }
.spec__val { font-family: 'Cormorant Garamond', serif; font-size: 1.4rem; color: var(--gold); }
.spec__label { font-size: .65rem; letter-spacing: .15em; text-transform: uppercase; color: var(--text-muted); }
.cuvee__more { color: var(--gold); font-size: .8rem; letter-spacing: .25em; text-transform: uppercase; }

/* ---------- Terroir ---------- */
.terroir-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.terroir__points { margin-top: 3rem; }
.terroir__point {
  padding: 1.6rem 0;
  border-top: 1px solid var(--line);
}
.terroir__point:last-child { border-bottom: 1px solid var(--line); }
.terroir__point h4 {
  font-family: 'Italiana', serif;
  font-size: 1.2rem;
  color: var(--gold);
  margin-bottom: .4rem;
}
.terroir__point span {
  font-size: .7rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ---------- Visites / Tarifs ---------- */
.visit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-bottom: 4rem; }
.visit-card {
  border: 1px solid var(--line);
  padding: 2.5rem 2rem;
  text-align: center;
  background: var(--surface);
}
.visit-card h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem;
  margin-bottom: .8rem;
}
.visit-card p {
  font-size: .8rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.visit-card .price {
  font-family: 'Italiana', serif;
  font-size: 2rem;
  color: var(--gold);
}

/* ---------- Formulaires ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; max-width: 720px; margin: 0 auto; }
.form-grid .full { grid-column: 1 / -1; }
.input {
  width: 100%;
  padding: 1rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: inherit;
  font-size: .95rem;
  transition: border-color .3s ease;
}
.input:focus { outline: none; border-color: var(--gold); }
.input::placeholder { color: var(--text-muted); }
select.input { appearance: none; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8'><path d='M1 1l5 5 5-5' stroke='%23c9a86a' fill='none' stroke-width='1.5'/></svg>"); background-repeat: no-repeat; background-position: right 1.2rem center; padding-right: 3rem; }

/* ---------- Journal ---------- */
.journal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.journal-card {
  border-top: 1px solid var(--line);
  padding-top: 2rem;
  transition: opacity .3s ease;
}
.journal-card:hover { opacity: .7; }
.journal-card__date {
  font-size: .7rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.journal-card h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  margin-bottom: .8rem;
  line-height: 1.3;
}
.journal-card p { color: var(--text-muted); font-size: .95rem; }

/* ---------- Pied de page ---------- */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  padding: 5rem 4vw 2rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  max-width: 1280px;
  margin: 0 auto 3rem;
}
.footer__brand h4 {
  font-family: 'Italiana', serif;
  font-size: 1.4rem;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.footer__brand p { color: var(--text-muted); max-width: 360px; font-size: .95rem; }
.footer__col h5 {
  font-size: .7rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.footer__col ul { list-style: none; }
.footer__col li { margin-bottom: .6rem; }
.footer__col a { font-size: .9rem; color: var(--text-2); transition: color .3s ease; }
.footer__col a:hover { color: var(--gold); }
.footer__bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .75rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.footer__legal { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer__legal a:hover { color: var(--gold); }

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s ease, transform .9s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .nav__links { display: none; }
  .nav__burger { display: block; }
  .nav__links.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    gap: 1.2rem;
    padding: 2rem 4vw;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
  }
  .story, .terroir-grid, .form-grid { grid-template-columns: 1fr; gap: 3rem; }
  .cuvees, .visit-grid, .journal-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr; }
  .section { padding: 5rem 4vw; }
}