/* =========================================================
   POLARIS — Le froid, réinventé
   Design : luxe minimaliste, monochrome + accent bleu glacé
   ========================================================= */

:root {
  --bg-light:      #f1f0ec;
  --bg-dark:       #101211;
  --bg-panel:      #faf9f6;
  --text-on-light: #16171a;
  --text-mute:     #5c5e60;
  --text-on-dark:  #f2f1ec;
  --accent:        #4d7d8c;
  --accent-soft:   #9db8c0;
  --line:          rgba(20, 22, 26, 0.12);
  --fr-blue:       #23368c;
  --fr-red:        #e1122f;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Hanken Grotesk', system-ui, sans-serif;

  --promo-h: 42px;
  --header-h: 68px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; scroll-behavior: auto; }
body {
  font-family: var(--font-body);
  background: var(--bg-light);
  color: var(--text-on-light);
  overflow-x: hidden;
}
::selection { background: var(--accent); color: #fff; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* Petit drapeau français */
.fr-flag {
  display: inline-block;
  width: 18px; height: 12px;
  border-radius: 2px;
  vertical-align: middle;
  background: linear-gradient(90deg, var(--fr-blue) 0 33.3%, #fff 33.3% 66.6%, var(--fr-red) 66.6% 100%);
  box-shadow: 0 0 0 1px var(--line);
}
.fr-flag.sm { width: 15px; height: 10px; }

/* ================= 1. BARRE PROMO + COMPTE À REBOURS ================= */
.promo-bar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--promo-h);
  background: #0a0b0a;
  color: var(--text-on-dark);
  z-index: 10000;
  display: flex; align-items: center; justify-content: center;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.promo-inner {
  display: flex; align-items: center; gap: 14px;
  font-size: 0.74rem; letter-spacing: 0.04em; padding: 0 16px; white-space: nowrap;
}
.promo-tag { text-transform: uppercase; letter-spacing: 0.22em; font-weight: 600; font-size: 0.66rem; color: var(--accent-soft); }
.promo-sep { opacity: 0.35; }
.promo-text { color: rgba(242,241,236,0.72); }
.countdown { display: flex; align-items: center; gap: 8px; }
.cd-block { display: flex; flex-direction: column; align-items: center; min-width: 34px; }
.cd-num { font-variant-numeric: tabular-nums; font-weight: 700; font-size: 0.98rem; line-height: 1; letter-spacing: 0.02em; }
.cd-lbl { font-size: 0.5rem; text-transform: uppercase; letter-spacing: 0.16em; color: rgba(242,241,236,0.5); margin-top: 3px; }
.cd-colon { font-weight: 700; opacity: 0.5; transform: translateY(-4px); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0.15; } }
.promo-cta { color: #fff; font-weight: 600; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 1px; transition: border-color .25s; }
.promo-cta:hover { border-color: #fff; }

/* ================= 2. LOADER ================= */
#loader {
  position: fixed; inset: 0; z-index: 20000;
  background: var(--bg-light);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 26px;
  transition: opacity .8s ease, visibility .8s ease;
}
#loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-brand { font-family: var(--font-display); font-weight: 300; font-size: clamp(2.4rem, 7vw, 4.2rem); letter-spacing: 0.34em; padding-left: 0.34em; }
#loader-track { width: min(240px, 60vw); height: 1px; background: var(--line); overflow: hidden; }
#loader-bar { width: 0%; height: 100%; background: var(--text-on-light); transition: width .2s ease; }
#loader-percent { font-size: 0.7rem; letter-spacing: 0.3em; color: var(--text-mute); font-variant-numeric: tabular-nums; }

/* ================= 3. HEADER ================= */
.site-header {
  position: fixed; top: var(--promo-h); left: 0; right: 0; height: var(--header-h);
  z-index: 9000; display: flex; align-items: center;
  transition: background .4s ease, backdrop-filter .4s ease, border-color .4s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled { background: rgba(241,240,236,0.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.site-header nav { width: 100%; padding: 0 clamp(20px, 5vw, 54px); display: flex; align-items: center; justify-content: space-between; }
.logo { font-family: var(--font-display); font-weight: 400; font-size: 1.35rem; letter-spacing: 0.3em; padding-left: 0.3em; }
.nav-links { display: flex; align-items: center; gap: clamp(16px, 2.6vw, 36px); }
.nav-links a { font-size: 0.82rem; letter-spacing: 0.06em; color: var(--text-mute); transition: color .25s; }
.nav-links a:hover { color: var(--text-on-light); }
.nav-cta { color: var(--text-on-light) !important; border: 1px solid var(--text-on-light); padding: 8px 20px; border-radius: 100px; font-weight: 500; transition: background .3s, color .3s !important; }
.nav-cta:hover { background: var(--text-on-light); color: var(--bg-light) !important; }

/* ================= Boutons ================= */
.btn-primary {
  display: inline-block; background: var(--text-on-light); color: var(--bg-light);
  padding: 15px 32px; border-radius: 100px; font-size: 0.9rem; font-weight: 600; letter-spacing: 0.02em;
  transition: transform .3s cubic-bezier(.2,.8,.2,1), background .3s;
}
.btn-primary:hover { transform: translateY(-3px); background: var(--accent); }
.btn-ghost { display: inline-block; padding: 15px 26px; font-weight: 600; font-size: 0.9rem; color: var(--text-on-light); border-bottom: 1px solid var(--line); transition: border-color .25s; }
.btn-ghost:hover { border-color: var(--text-on-light); }

/* ================= 4. HERO ================= */
.hero {
  position: relative; min-height: 100vh;
  display: flex; flex-direction: column; align-items: flex-start; justify-content: center;
  padding: calc(var(--promo-h) + var(--header-h)) clamp(24px, 8vw, 130px) 0;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(1100px 700px at 78% 18%, rgba(77,125,140,0.16), transparent 60%),
    radial-gradient(900px 600px at 12% 88%, rgba(157,184,192,0.18), transparent 62%),
    var(--bg-light);
}
.hero-inner { position: relative; z-index: 1; max-width: 1100px; }
.hero-flag { display: inline-flex; align-items: center; gap: 9px; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.22em; color: var(--text-mute); margin-bottom: 1.8rem; }
.hero-heading { font-family: var(--font-display); font-weight: 300; font-size: clamp(3.4rem, 12vw, 11rem); line-height: 0.92; letter-spacing: -0.02em; }
.hero-heading .italic { font-style: italic; font-weight: 400; }
.hero-heading span { display: inline-block; }
.hero-tagline { margin-top: 1.8rem; font-size: clamp(1rem, 1.5vw, 1.28rem); font-weight: 300; color: var(--text-mute); max-width: 42ch; line-height: 1.55; }
.hero-actions { margin-top: 2.6rem; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.scroll-indicator { position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%); z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 12px; font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.3em; color: var(--text-mute); }
.scroll-indicator .arrow { width: 1px; height: 46px; background: linear-gradient(var(--text-mute), transparent); animation: scrollpulse 2s ease-in-out infinite; }
@keyframes scrollpulse { 0%,100% { opacity:.3; transform: scaleY(.6); } 50% { opacity:1; transform: scaleY(1); } }

/* labels */
.section-label { display: inline-block; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.24em; color: var(--accent); margin-bottom: 1.2rem; }
.section-label.center { color: var(--accent); }

/* ================= 5. PRODUIT VEDETTE (carré animé + infos) ================= */
.product-feature { position: relative; padding: clamp(60px, 10vh, 120px) clamp(20px, 6vw, 90px); border-top: 1px solid var(--line); }
.product-feature.alt { background: var(--bg-panel); }
.pf-grid { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: clamp(30px, 5vw, 90px); align-items: start; max-width: 1400px; margin: 0 auto; }
/* Variante inversée : carré à droite, infos à gauche */
.product-feature.rev .pf-media { order: 2; }
.product-feature.rev .pf-info  { order: 1; }

/* Le CARRÉ collant qui contient l'animation */
.pf-media { position: sticky; top: calc(var(--promo-h) + var(--header-h) + 24px); align-self: start; }
.pf-box {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-height: calc(100vh - var(--promo-h) - var(--header-h) - 60px);
  margin-inline: auto;
  background: radial-gradient(120% 120% at 50% 35%, #ffffff 0%, #f3f2ee 78%, #eceae4 100%);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 40px 80px -50px rgba(20,22,26,0.35);
}
#canvas { display: block; width: 100%; height: 100%; }
.pf-badge {
  position: absolute; left: 16px; bottom: 16px;
  font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.16em; color: var(--text-mute);
  background: rgba(255,255,255,0.7); backdrop-filter: blur(6px);
  padding: 6px 12px; border-radius: 100px; border: 1px solid var(--line);
}

/* Colonne infos droite */
.pf-info { padding-top: clamp(10px, 4vh, 40px); }
.pf-block { padding: 5vh 0; }
.pf-buybox { padding-top: 0; }
.pf-name { font-family: var(--font-display); font-weight: 300; font-size: clamp(2.2rem, 4.2vw, 3.6rem); line-height: 1.0; letter-spacing: -0.015em; }
.price-row { display: flex; align-items: baseline; gap: 14px; margin: 1.2rem 0 1.4rem; }
.price-now { font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 400; }
.price-old { color: var(--text-mute); text-decoration: line-through; font-size: 1.1rem; }
.price-save { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; color: #fff; background: var(--fr-red); padding: 4px 10px; border-radius: 100px; }
.pf-desc { font-size: 1.05rem; line-height: 1.6; color: var(--text-mute); max-width: 46ch; }
.pf-features { list-style: none; margin: 1.6rem 0 2rem; display: flex; flex-direction: column; gap: 10px; }
.pf-features.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; }
.pf-features li { position: relative; padding-left: 24px; font-size: 0.95rem; color: var(--text-on-light); }
.pf-features li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.btn-buy { margin-top: 4px; }
.pf-trust { margin-top: 1.2rem; font-size: 0.8rem; color: var(--text-mute); display: flex; align-items: center; gap: 8px; }

.pf-stats { display: flex; gap: clamp(20px, 4vw, 54px); padding: 3vh 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.pf-stats .stat { display: flex; align-items: baseline; gap: 6px; }
.stat-number { font-family: var(--font-display); font-weight: 300; font-size: clamp(2rem, 3.6vw, 3rem); line-height: 1; font-variant-numeric: tabular-nums; }
.stat-suffix { font-family: var(--font-display); font-style: italic; color: var(--accent); font-size: 1.05rem; }

.feat-idx { font-family: var(--font-display); font-style: italic; color: var(--accent-soft); font-size: 1.1rem; }
.feat-title { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin: 0.4rem 0 0.8rem; }
.feat-body { font-size: 1rem; line-height: 1.6; color: var(--text-mute); max-width: 44ch; }

/* ================= 6. PRODUIT MURAL ================= */
.product-wall { background: var(--bg-panel); border-top: 1px solid var(--line); padding: clamp(64px, 11vh, 140px) clamp(20px, 6vw, 90px); }
.pw-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(30px, 5vw, 80px); align-items: center; max-width: 1360px; margin: 0 auto; }
.pw-media { position: relative; }
.pw-media img { width: 100%; height: auto; filter: drop-shadow(0 50px 60px rgba(20,22,26,0.18)); }
.pw-badge { position: absolute; top: 10px; left: 10px; display: inline-flex; align-items: center; gap: 8px; font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.16em; font-weight: 600; color: var(--text-on-light); background: #fff; border: 1px solid var(--line); padding: 7px 14px; border-radius: 100px; }
.pw-info { }
@media (min-width: 901px) { .product-wall .pw-grid .pw-media { order: 2; } .product-wall .pw-grid .pw-info { order: 1; } }

/* ================= 7. NOS GAMMES : 2 CATÉGORIES ================= */
.ranges { padding: clamp(70px, 11vh, 150px) clamp(20px, 6vw, 90px); }
.ranges-head { text-align: center; max-width: 700px; margin: 0 auto clamp(40px, 6vh, 76px); }
.ranges-title { font-family: var(--font-display); font-weight: 300; font-size: clamp(2.2rem, 5vw, 4rem); line-height: 1.02; letter-spacing: -0.02em; }
.range-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(18px, 2.4vw, 34px); max-width: 1300px; margin: 0 auto; }
.range-card {
  display: flex; flex-direction: column;
  background: var(--bg-panel); border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
  transition: transform .45s cubic-bezier(.2,.8,.2,1), box-shadow .45s, border-color .45s;
}
.range-card:hover { transform: translateY(-6px); box-shadow: 0 40px 70px -40px rgba(20,22,26,0.3); border-color: rgba(20,22,26,0.2); }
.range-media { aspect-ratio: 16 / 10; background-size: cover; background-position: center; }
.range-media--mobile { background: radial-gradient(120% 120% at 50% 30%, #fff, #eceae4); background-image: url("../products/clim-nova.png"); background-size: 62%; background-repeat: no-repeat; background-position: center 58%; background-color: #f4f3ef; }
.range-media--mural { background: #f4f3ef url("../products/polaris-mural.png") no-repeat center; background-size: 84%; }
.range-body { padding: 26px 28px 30px; }
.range-kicker { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.18em; color: var(--accent); }
.range-name { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin: 0.5rem 0 0.6rem; }
.range-desc { color: var(--text-mute); font-size: 0.96rem; line-height: 1.55; }
.range-link { display: inline-block; margin-top: 1.2rem; font-size: 0.86rem; font-weight: 600; color: var(--text-on-light); border-bottom: 1px solid var(--line); padding-bottom: 2px; transition: border-color .25s; }
.range-card:hover .range-link { border-color: var(--text-on-light); }

/* ================= 8. FOOTER ================= */
.site-footer { background: var(--bg-dark); color: var(--text-on-dark); text-align: center; padding: clamp(64px, 9vh, 110px) 24px clamp(40px, 6vh, 70px); }
.footer-brand { font-family: var(--font-display); font-weight: 300; font-size: clamp(2.4rem, 8vw, 5rem); letter-spacing: 0.3em; padding-left: 0.3em; }
.footer-tag { margin-top: 0.8rem; color: rgba(242,241,236,0.55); font-style: italic; font-family: var(--font-display); font-size: 1.1rem; }
.footer-links { margin-top: 2.6rem; display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; }
.footer-links a { font-size: 0.82rem; letter-spacing: 0.05em; color: rgba(242,241,236,0.7); transition: color .25s; }
.footer-links a:hover { color: #fff; }
.footer-copy { margin-top: 2.6rem; font-size: 0.72rem; letter-spacing: 0.08em; color: rgba(242,241,236,0.35); }

/* ================= REVEAL (JS ajoute .in) ================= */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .9s cubic-bezier(.2,.8,.2,1), transform .9s cubic-bezier(.2,.8,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* ================= RESPONSIVE ================= */
@media (max-width: 900px) {
  .pf-grid { grid-template-columns: 1fr; gap: 10px; }
  .product-feature.rev .pf-media, .product-feature.rev .pf-info { order: 0; }
  .pf-media { position: relative; top: 0; margin-bottom: 20px; }
  .pf-box { max-height: none; aspect-ratio: 4 / 3; max-width: 560px; }
  .pf-info { padding-top: 6px; }
  .pf-block { padding: 3.4vh 0; }
  .pw-grid { grid-template-columns: 1fr; gap: 28px; }
  .product-wall .pw-grid .pw-media { order: 1; } .product-wall .pw-grid .pw-info { order: 2; }
  .range-grid { grid-template-columns: 1fr; }
  .pf-features.two-col { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  :root { --promo-h: 58px; }
  .promo-inner { flex-wrap: wrap; justify-content: center; gap: 6px 10px; font-size: 0.66rem; }
  .promo-hide-sm { display: none; }
  .cd-block { min-width: 28px; } .cd-num { font-size: 0.86rem; }
  .nav-links a:not(.nav-cta) { display: none; }
  .hero-actions { gap: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .cd-colon, .scroll-indicator .arrow { animation: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
}