/* ============================================================
   EDELWEISS 2100 — Design System v2  ·  "Editorial Luxury"
   Refuge d'altitude — agency-grade alpine hospitality
   Type: Zodiak (display serif) + Switzer (grotesk)
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  /* Palette — warm editorial creams + espresso + larch + pine */
  --paper:        #F6F1E8;   /* fond principal, neige chaude */
  --paper-2:      #FBF8F2;   /* surfaces claires / cartes */
  --cream:        #EFE7D9;   /* sections alternées */
  --cream-deep:   #E3D7C3;   /* placeholders / blocs */
  --espresso:     #1F1A14;   /* texte principal, brun-noir profond */
  --espresso-2:   #4A4138;   /* texte secondaire */
  --muted:        #877A69;   /* légendes / labels */
  --larch:        #B26A38;   /* accent bois mélèze */
  --larch-deep:   #8A4E26;
  --larch-glow:   #E0A368;
  --pine:         #232E27;   /* vert sapin nuit */
  --pine-soft:    #3E4E43;
  --glacier:      #6E91A4;
  --snow:         #FFFFFF;
  --line:         color-mix(in oklab, var(--espresso) 12%, transparent);
  --line-2:       color-mix(in oklab, var(--espresso) 20%, transparent);

  /* Typo — inspirée d'Ours Blanc : serif élégant + signature manuscrite */
  --font-display: "EB Garamond", Georgia, "Times New Roman", serif;
  --font-body:    "Quicksand", system-ui, sans-serif;
  --font-script:  "Pinyon Script", "EB Garamond", cursive;

  /* Échelle d'espacement (macro-whitespace) */
  --space-1: 0.5rem; --space-2: 1rem; --space-3: 1.5rem;
  --space-4: 2.5rem; --space-5: 4rem; --space-6: 6.5rem; --space-7: 10rem;

  /* Rayons — squircles généreux */
  --r-sm: 10px; --r-md: 18px; --r-lg: 28px; --r-xl: 40px; --r-2xl: 56px;

  /* Ombres — diffuses, chaudes, multi-couches (jamais de noir dur) */
  --shadow-xs: 0 1px 2px color-mix(in oklab, var(--espresso) 6%, transparent);
  --shadow-sm: 0 2px 6px color-mix(in oklab, var(--espresso) 7%, transparent),
               0 8px 18px -10px color-mix(in oklab, var(--espresso) 12%, transparent);
  --shadow-md: 0 4px 14px -6px color-mix(in oklab, var(--espresso) 14%, transparent),
               0 24px 48px -22px color-mix(in oklab, var(--espresso) 26%, transparent);
  --shadow-lg: 0 8px 24px -8px color-mix(in oklab, var(--espresso) 16%, transparent),
               0 48px 90px -30px color-mix(in oklab, var(--espresso) 38%, transparent);
  --inset-hi:  inset 0 1px 0 color-mix(in oklab, var(--snow) 60%, transparent);

  /* Layout */
  --maxw: 1280px;
  --gutter: clamp(1.25rem, 4.5vw, 4rem);
  --nav-h: 72px;

  /* Easing — physique / ressort (jamais linear/ease-in-out) */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.32, 0.72, 0, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--espresso);
  line-height: 1.6;
  font-size: 1.0625rem;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
/* Lien au fil du texte : le reset ci-dessus le rendrait invisible.
   Souligné en plus de la couleur, pour rester lisible sans distinguer les teintes. */
.link-inline {
  color: var(--larch-deep); text-decoration: underline;
  text-underline-offset: 0.18em; text-decoration-thickness: 1px;
  transition: color 0.3s var(--ease);
}
.link-inline:hover, .link-inline:focus-visible { color: var(--larch); }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }
::selection { background: color-mix(in oklab, var(--larch) 28%, transparent); }

/* ---------- Texture grain (fixe, pointer-events-none) ---------- */
body::after {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 60;
  opacity: 0.04; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Typographie ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.005em;
  color: var(--espresso);
}
.display { font-size: clamp(3.4rem, 9.5vw, 8.5rem); font-weight: 500; line-height: 0.98; letter-spacing: -0.01em; }
h1 { font-size: clamp(3rem, 6.4vw, 5.8rem); }
h2 { font-size: clamp(2.2rem, 4.6vw, 4.1rem); }
h3 { font-size: clamp(1.5rem, 2.4vw, 2.2rem); font-weight: 500; }
p  { color: var(--espresso-2); }
.lead { font-size: clamp(1.1rem, 1.5vw, 1.38rem); color: var(--espresso-2); line-height: 1.65; font-weight: 400; }
.serif-italic { font-family: var(--font-display); font-style: italic; font-weight: 400; }

/* Eyebrow — signature manuscrite (façon Ours Blanc) */
.eyebrow {
  font-family: var(--font-script);
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  font-weight: 400; letter-spacing: 0; text-transform: none;
  color: var(--larch);
  display: inline-block; line-height: 1; padding: 0;
  background: none; box-shadow: none;
}
.eyebrow::before { display: none; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(5rem, 11vw, 10rem); position: relative; }
[id] { scroll-margin-top: calc(var(--nav-h) + 2rem); }
.section--cream { background: var(--cream); }
.section--pine  { background: var(--pine); color: #E9E2D5; }
.section--pine h1, .section--pine h2, .section--pine h3 { color: var(--paper); }
.section--pine p { color: rgba(233, 226, 213, 0.82); }
.section--pine .eyebrow { color: var(--larch-glow); background: none; box-shadow: none; }

.grid { display: grid; gap: clamp(1.5rem, 3vw, 3rem); }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; } }

/* Motif topographique (lignes de niveau, discret) */
.topo {
  background-image:
    repeating-radial-gradient(circle at 18% 12%, transparent 0 52px, var(--line) 52px 53px),
    repeating-radial-gradient(circle at 90% 88%, transparent 0 66px, var(--line) 66px 67px);
}
.topo-faint { background-image: repeating-radial-gradient(circle at 82% 8%, transparent 0 58px, rgba(255,255,255,0.05) 58px 59px); }

/* ---------- Navigation — île flottante en verre ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: center;
  padding: clamp(0.7rem, 1.6vw, 1.25rem) var(--gutter);
  pointer-events: none;
}
.nav__inner {
  pointer-events: auto;
  width: 100%; max-width: calc(var(--maxw) - 2rem);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
  height: var(--nav-h); padding: 0 0.65rem 0 1.4rem;
  border-radius: 100px;
  background: color-mix(in oklab, var(--paper-2) 78%, transparent);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  box-shadow: var(--shadow-sm), inset 0 0 0 1px color-mix(in oklab, var(--snow) 50%, transparent), inset 0 0 0 1.5px var(--line);
  transition: box-shadow 0.5s var(--ease), background 0.5s var(--ease), transform 0.5s var(--ease);
}
.nav.scrolled .nav__inner { box-shadow: var(--shadow-md), inset 0 0 0 1px color-mix(in oklab, var(--snow) 55%, transparent); background: color-mix(in oklab, var(--paper-2) 88%, transparent); }
.brand { display: flex; align-items: center; gap: 0.7rem; }
.brand__mark { width: 32px; height: 32px; flex: none; display: grid; place-items: center; }
.brand__name { font-family: var(--font-display); font-weight: 600; font-size: 1.12rem; letter-spacing: 0.01em; line-height: 1; }
.brand__name small { display: block; font-family: var(--font-body); font-size: 0.56rem; letter-spacing: 0.36em; font-weight: 600; color: var(--larch-deep); margin-top: 4px; text-transform: uppercase; }
.nav__links { display: flex; align-items: center; gap: 0.4rem; }
.nav__link {
  font-size: 0.86rem; font-weight: 500; letter-spacing: 0.005em; color: var(--espresso-2);
  position: relative; padding: 0.55rem 0.9rem; border-radius: 100px;
  transition: color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav__link:hover { color: var(--espresso); background: color-mix(in oklab, var(--espresso) 5%, transparent); }
.nav__link.active { color: var(--espresso); }
.nav__link.active::after { content: ""; position: absolute; left: 50%; bottom: 0.28rem; width: 4px; height: 4px; border-radius: 50%; background: var(--larch); transform: translateX(-50%); }

.nav__toggle { display: none; width: 42px; height: 42px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; border-radius: 50%; }
.nav__toggle span { height: 1.5px; width: 19px; background: var(--espresso); border-radius: 2px; transition: transform 0.4s var(--ease-spring), opacity 0.3s var(--ease); }
.nav__toggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 940px) {
  /* La pilule perd son backdrop-filter sur mobile : sinon elle "piège" le menu en
     position fixed (devient son cadre de référence) et il ne couvre plus l'écran. */
  .nav__inner { backdrop-filter: none; -webkit-backdrop-filter: none; background: color-mix(in oklab, var(--paper-2) 95%, transparent); }
  .brand, .nav__toggle { position: relative; z-index: 2; }
  .nav__links {
    position: fixed; inset: 0; z-index: 1;
    flex-direction: column; align-items: center; justify-content: center; gap: 0.4rem;
    background: color-mix(in oklab, var(--paper) 92%, transparent);
    backdrop-filter: blur(28px) saturate(140%); -webkit-backdrop-filter: blur(28px) saturate(140%);
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity 0.45s var(--ease), visibility 0.45s var(--ease);
  }
  .nav__links.open { opacity: 1; visibility: visible; pointer-events: auto; }
  .nav__link { font-size: 1.8rem; font-family: var(--font-display); padding: 0.5rem 1.2rem; opacity: 0; transform: translateY(18px); }
  .nav__links.open .nav__link { animation: navIn 0.6s var(--ease) forwards; }
  .nav__links.open .nav__link:nth-child(1){ animation-delay: 0.08s; }
  .nav__links.open .nav__link:nth-child(2){ animation-delay: 0.14s; }
  .nav__links.open .nav__link:nth-child(3){ animation-delay: 0.20s; }
  .nav__links.open .nav__link:nth-child(4){ animation-delay: 0.26s; }
  .nav__links.open .nav__link:nth-child(5){ animation-delay: 0.32s; }
  .nav__links.open .nav__link:nth-child(6){ animation-delay: 0.38s; }
  .nav__links.open .nav__link:nth-child(7){ animation-delay: 0.43s; }
  .nav__links.open .nav__cta { animation: navIn 0.6s var(--ease) 0.49s forwards; }
  @keyframes navIn { to { opacity: 1; transform: none; } }
  .nav__toggle { display: flex; }
  .nav__cta { display: none; }
  .nav__links.open .nav__cta { display: inline-flex; margin-top: 1rem; }
}

/* ---------- Boutons — pill + ressort + bouton-dans-bouton ---------- */
.btn {
  --btn-bg: var(--espresso); --btn-fg: var(--paper);
  display: inline-flex; align-items: center; gap: 0.5em;
  font-family: var(--font-body); font-weight: 600; font-size: 0.92rem; letter-spacing: 0.005em;
  padding: 0.85em 0.95em 0.85em 1.5em; border-radius: 100px;
  background: var(--btn-bg); color: var(--btn-fg);
  box-shadow: var(--shadow-sm), var(--inset-hi);
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s var(--ease), background 0.4s var(--ease), filter 0.4s var(--ease);
  will-change: transform;
}
.btn:has(> .btn__ico) { padding-right: 0.45em; }
.btn:not(:has(.btn__ico)) { padding-inline: 1.5em; }
.btn__ico {
  width: 1.9em; height: 1.9em; border-radius: 50%; flex: none;
  display: grid; place-items: center;
  background: color-mix(in oklab, var(--btn-fg) 16%, transparent);
  transition: transform 0.45s var(--ease-spring), background 0.4s var(--ease);
}
.btn__ico svg { width: 0.95em; height: 0.95em; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md), var(--inset-hi); }
.btn:hover .btn__ico { transform: translate(2px, -1px); background: color-mix(in oklab, var(--btn-fg) 26%, transparent); }
.btn:active { transform: translateY(0) scale(0.975); }
.btn svg { width: 1.05em; height: 1.05em; }
.btn--primary { --btn-bg: var(--espresso); --btn-fg: var(--paper); }
.btn--primary:hover { filter: brightness(1.12); }
.btn--larch { --btn-bg: var(--larch); --btn-fg: var(--snow); }
.btn--larch:hover { filter: brightness(1.06) saturate(1.05); }
.btn--light { --btn-bg: var(--paper-2); --btn-fg: var(--espresso); }
.btn--ghost { background: transparent; color: var(--espresso); box-shadow: inset 0 0 0 1.5px var(--line-2); }
.btn--ghost:hover { box-shadow: inset 0 0 0 1.5px var(--espresso); transform: translateY(-2px); }
.btn--ghost .btn__ico { background: color-mix(in oklab, var(--espresso) 9%, transparent); }
.btn--lg { font-size: 1rem; padding-block: 1em; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 0.5em; font-weight: 600; color: var(--larch-deep);
  transition: gap 0.4s var(--ease-spring);
}
.link-arrow:hover { gap: 0.85em; }
.link-arrow svg { width: 1.1em; height: 1.1em; }

/* ---------- Reveal au scroll — fade-up + blur, staggered ---------- */
[data-reveal] { opacity: 0; transform: translateY(28px); filter: blur(8px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease), filter 0.9s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; filter: blur(0); }
[data-reveal][data-delay="1"] { transition-delay: 0.09s; }
[data-reveal][data-delay="2"] { transition-delay: 0.18s; }
[data-reveal][data-delay="3"] { transition-delay: 0.27s; }
[data-reveal][data-delay="4"] { transition-delay: 0.36s; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1 !important; transform: none !important; filter: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- Cartes — double-bezel (coque + cœur) ---------- */
.card {
  position: relative;
  background: color-mix(in oklab, var(--espresso) 4%, var(--paper-2));
  border-radius: var(--r-lg);
  padding: 6px;
  box-shadow: var(--shadow-sm), inset 0 0 0 1px var(--line);
  transition: transform 0.5s var(--ease-spring), box-shadow 0.5s var(--ease);
}
.card > * { position: relative; }
.card::before {
  content: ""; position: absolute; inset: 6px; border-radius: calc(var(--r-lg) - 6px);
  background: var(--paper-2); box-shadow: var(--inset-hi), inset 0 0 0 1px var(--line);
  z-index: 0;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md), inset 0 0 0 1px var(--line); }
.card:focus-within { transform: translateY(-4px); box-shadow: var(--shadow-md); }

/* Photo cadrée (gère la basse résolution avec fond flou) */
.framed { position: relative; overflow: hidden; background: var(--cream-deep); }
.framed img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease); }
.framed--blurfill::before { content: ""; position: absolute; inset: -10%; background-image: var(--bg); background-size: cover; background-position: center; filter: blur(36px) saturate(120%); transform: scale(1.2); opacity: 0.55; }
.framed--blurfill img { position: relative; }

/* ---------- Footer ---------- */
.footer { background: var(--pine); color: rgba(233,226,213,0.72); padding-block: clamp(4rem,8vw,6rem) 2.5rem; position: relative; }
.footer a { color: rgba(233,226,213,0.72); transition: color 0.3s var(--ease); }
.footer a:hover { color: var(--larch-glow); }
.footer p, .footer li, .footer__brand p { color: rgba(237,230,221,0.7); }
.footer h4 { color: var(--paper); font-size: 0.78rem; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 1.1rem; font-family: var(--font-body); font-weight: 600; }
.footer__top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 3.5rem; border-bottom: 1px solid rgba(233,226,213,0.14); }
.footer__brand .brand__name { color: var(--paper); font-size: 1.6rem; }
.footer__bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 2rem; font-size: 0.84rem; color: rgba(233,226,213,0.5); }
@media (max-width: 800px) { .footer__top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer__top { grid-template-columns: 1fr; } }

/* ---------- Utilitaires ---------- */
.center { text-align: center; }
.center .eyebrow { } /* le parent gère l'alignement via inline-flex */
.mx-auto { margin-inline: auto; }
.measure { max-width: 56ch; } .measure-sm { max-width: 44ch; }
.mt-1{margin-top:var(--space-1)} .mt-2{margin-top:var(--space-2)} .mt-3{margin-top:var(--space-3)} .mt-4{margin-top:var(--space-4)} .mt-5{margin-top:var(--space-5)}
.stack > * + * { margin-top: 1.2rem; }
.pill {
  display: inline-flex; align-items: center; gap: 0.5em; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.01em;
  padding: 0.5em 1em; border-radius: 100px;
  background: var(--paper-2); color: var(--espresso-2);
  box-shadow: inset 0 0 0 1px var(--line), var(--shadow-xs);
}
.pill svg { width: 1em; height: 1em; color: var(--larch-deep); }
.divider-star { display: flex; align-items: center; justify-content: center; gap: 1rem; color: var(--larch); }
.divider-star::before, .divider-star::after { content: ""; height: 1px; width: 60px; background: var(--line-2); }

/* ---------- Focus visible (a11y / clavier) ---------- */
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in oklab, var(--larch) 40%, transparent), var(--shadow-sm); }
.nav__link:focus-visible, .link-arrow:focus-visible, .nav__toggle:focus-visible { outline: 2px solid var(--larch); outline-offset: 3px; border-radius: 100px; }