/* ==========================================================================
   Provence PVC Armé — Design tokens
   Palette : #0B2B3C marine / #123945 carte foncée / #E8E2D4 sable
             #1C8C94 lagon (accent) / #C9A876 or Provence (accent 2) / #F5F3ED blanc chaud
   Type : Manrope (titres, accent éditorial en italique, données techniques —
          les 3 rôles distingués par poids/casse/tracking plutôt que par police)
          Inter (corps de texte)
   ========================================================================== */

:root {
  --marine: #0B2B3C;
  --marine-card: #123945;
  --marine-card-2: #16404D;
  --sand: #E8E2D4;
  --sand-deep: #DCD4C0;
  --lagon: #1C8C94;
  --lagon-light: #3BAAB2;
  --lagon-deep: #0F6169;
  --gold: #C9A876;
  --gold-light: #E0C99A;
  --paper: #F5F3ED;
  --ink: #1A2B2F;
  --ink-soft: #4A5A5C;

  /* semantic aliases — layered on top of the primitives above for future use.
     Nothing existing was renamed or removed; components can keep referencing
     --marine/--lagon/etc. directly, or adopt these by-purpose names instead. */
  --color-primary: var(--marine);
  --color-accent: var(--lagon);
  --color-accent-2: var(--gold);
  --color-surface: var(--paper);
  --color-surface-alt: var(--sand);
  --color-text: var(--ink);
  --color-text-muted: var(--ink-soft);

  /* all three roles below resolve to the same family (Manrope) — kept as
     separate tokens since they're distinct semantic roles, differentiated
     via weight/case/tracking (see .serif-accent and the font-mono users) */
  --font-display: 'Manrope', sans-serif;
  --font-serif: 'Manrope', sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'Manrope', sans-serif;

  --container: 1180px;
  --container-wide: 1320px;

  --radius-s: 6px;
  --radius-m: 14px;
  --radius-l: 24px;
  --radius-xl: 32px;

  /* spacing scale — deliberately uneven rhythm from section to section */
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --space-9: 128px;
  --space-10: 160px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-snap: cubic-bezier(0.22, 1, 0.36, 1);

  --shadow-sm: 0 2px 10px -6px color-mix(in srgb, var(--marine) 25%, transparent);
  --shadow-md: 0 16px 32px -16px color-mix(in srgb, var(--marine) 28%, transparent);
  --shadow-lg: 0 32px 56px -24px color-mix(in srgb, var(--marine) 38%, transparent);
  --shadow-xl: 0 48px 90px -32px color-mix(in srgb, var(--marine) 45%, transparent);
  --glow-lagon: 0 0 0 1px color-mix(in srgb, var(--lagon) 30%, transparent), 0 24px 48px -20px color-mix(in srgb, var(--lagon) 50%, transparent);
  --glow-gold: 0 0 0 1px color-mix(in srgb, var(--gold) 35%, transparent), 0 24px 48px -20px color-mix(in srgb, var(--gold) 40%, transparent);

  --nav-height: 76px;

  /* subtle fractal-noise grain, used on dark sections for tactile depth */
  --grain: 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='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
/* Lenis drives scroll itself once active — native smooth-scroll would double up on it */
html.lenis { scroll-behavior: auto !important; }
html.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3 { font-family: var(--font-display); margin: 0; font-weight: 700; letter-spacing: -0.02em; }

.serif-accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

:focus-visible {
  outline: 2px solid var(--lagon);
  outline-offset: 3px;
}

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

/* every anchor target clears the sticky nav on jump / keyboard focus */
section[id] { scroll-margin-top: var(--nav-height); }

/* skip-to-content — off-screen until keyboard focus reveals it above the sticky nav */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-3);
  z-index: 1000;
  background: var(--marine);
  color: var(--paper);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-s);
  font-weight: 600;
  font-size: 14px;
  transition: top 0.2s var(--ease);
}
.skip-link:focus {
  top: var(--space-3);
}

/* ---------- seam progress (signature element) ---------- */
.seam-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--lagon), var(--gold));
  z-index: 999;
  transition: width 0.1s linear;
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(245, 243, 237, 0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(11, 43, 60, 0.06);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--marine) 2%, transparent);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.nav.nav--scrolled {
  background: rgba(245, 243, 237, 0.92);
  border-bottom-color: rgba(11, 43, 60, 0.09);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: var(--container-wide);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-logo-mark {
  color: var(--lagon);
  font-size: 22px;
  transform: rotate(90deg);
  display: inline-block;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--marine);
  font-weight: 600;
}
.nav-logo-text em { font-style: normal; color: var(--lagon); }

/* image-based header logo (index/methode/realisations/contact) — word
   stacked above the wave, ~37px total so it never crowds the nav row.
   .nav-logo-mark/.nav-logo-text above are left untouched: mentions-legales
   and confidentialite still use the original text+mark logo. */
.nav-logo--image {
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 3px;
}
.nav-logo-word { height: 22px; width: auto; display: block; }
.nav-logo-wave { height: 12px; width: auto; display: block; }

.nav-links {
  display: flex;
  gap: 26px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
}
.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: relative;
  transition: color 0.2s var(--ease);
}
.nav-links a svg { color: var(--lagon); flex-shrink: 0; transition: transform 0.2s var(--ease); }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -4px;
  height: 2px;
  background: var(--lagon);
  border-radius: 2px;
  transition: right 0.25s var(--ease);
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--marine); }
.nav-links a:hover::after, .nav-links a:focus-visible::after { right: 0; }
.nav-links a:hover svg, .nav-links a:focus-visible svg { transform: scale(1.1); }

/* current-page indicator — persistent underline + weight, reuses the hover language */
.nav-links a[aria-current="page"] { color: var(--marine); font-weight: 600; }
.nav-links a[aria-current="page"]::after { right: 0; }

.nav-cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

.btn-call {
  display: flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--marine);
  padding: var(--space-2) var(--space-3); border-radius: 100px;
  border: 1px solid color-mix(in srgb, var(--marine) 15%, transparent);
  min-height: 44px;
}
.btn-call:hover { border-color: var(--lagon); color: var(--lagon); }
/* discreet reminder pulse — brief, and only once every 10s so it never reads as nagging */
.btn-call { animation: call-pulse 10s ease-in-out infinite; }
/* WCAG 2.2.2 (Pause, Stop, Hide) — an infinite loop must be pausable on interaction */
.btn-call:hover, .btn-call:focus-visible { animation-play-state: paused; }
@keyframes call-pulse {
  0%, 8%, 100% { transform: scale(1); }
  4% { transform: scale(1.04); }
}
@media (prefers-reduced-motion: reduce) {
  .btn-call { animation: none; }
}

.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  /* darkened from the original lagon-light start (contrast ~2.5:1 with paper text,
     fails WCAG AA) — every stop here keeps --paper text at 4.5:1+ */
  background: linear-gradient(135deg, var(--lagon-deep), #147078 55%, #0D5A61);
  color: var(--paper);
  font-weight: 600; font-size: 14px;
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
  box-shadow: 0 4px 14px -4px color-mix(in srgb, var(--lagon) 55%, transparent);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -6px color-mix(in srgb, var(--lagon) 60%, transparent); }

.btn-lg { padding: var(--space-3) var(--space-5); font-size: 15px; }
.btn-full { width: 100%; padding: 16px; font-size: 16px; }

/* generic water-drop ripple, usable on any button via JS */
.ripple-btn {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  outline: 2px solid transparent;
  outline-offset: 0px;
  transition: outline-color 0.3s var(--ease), outline-offset 0.3s var(--ease);
}
.ripple-btn:hover {
  outline-color: var(--gold);
  outline-offset: 4px;
}
.ripple-btn:focus-visible {
  outline-color: var(--lagon);
  outline-offset: 3px;
}
.ripple-btn:active {
  transform: scale(0.97);
}
.btn-ripple {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--paper) 55%, transparent) 0%, color-mix(in srgb, var(--paper) 18%, transparent) 45%, transparent 70%);
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
  z-index: 0;
  animation: ripple-drop 0.6s var(--ease) forwards;
}
.btn-outline .btn-ripple, .btn-call .btn-ripple, .btn-secondary-nav .btn-ripple {
  background: radial-gradient(circle, color-mix(in srgb, var(--lagon) 35%, transparent) 0%, color-mix(in srgb, var(--lagon) 10%, transparent) 45%, transparent 70%);
}

.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: transparent;
  color: var(--marine);
  font-weight: 600; font-size: 14.5px;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid color-mix(in srgb, var(--marine) 25%, transparent);
  border-radius: 100px;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}
.btn-outline:hover { border-color: var(--lagon); background: color-mix(in srgb, var(--lagon) 6%, transparent); transform: translateY(-1px); }
.btn-outline--light { color: var(--paper); border-color: color-mix(in srgb, var(--paper) 30%, transparent); }
.btn-outline--light:hover { border-color: var(--lagon-light); background: color-mix(in srgb, var(--paper) 6%, transparent); }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 14px; color: var(--marine);
  padding: var(--space-1);
}
.btn-ghost svg { transition: transform 0.2s var(--ease); }
.btn-ghost:hover svg { transform: translateX(3px); }
.btn-ghost:active svg { transform: translateX(5px); }
.btn-ghost--light { color: var(--paper); }
.btn-ghost--light svg { color: var(--paper); }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none; border: none; cursor: pointer;
  padding: 15px;
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
}
.nav-burger span { width: 20px; height: 2px; background: var(--marine); border-radius: 2px; }

.mobile-cta-bar {
  display: none;
  transition: transform 0.15s var(--ease), background 0.2s var(--ease);
}
.mobile-cta-bar:active { transform: scale(0.98); background: #0D5A61; }

/* ---------- hero (video background) ---------- */
.hero--video {
  position: relative;
  height: 100vh; /* fallback for browsers without dvh support */
  height: 100dvh;
  min-height: 620px;
  max-height: 960px;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 100px 24px 60px;
  background: var(--marine);
}
.hero-video {
  position: absolute;
  top: -6%;
  left: 0;
  width: 100%;
  height: 112%;
  object-fit: cover;
  object-position: center 55%;
  z-index: 0;
  display: block;
  will-change: transform;
}
.hero-video-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 50% 55% at 24% 46%, color-mix(in srgb, var(--lagon) 16%, transparent), transparent 60%),
    radial-gradient(ellipse 60% 70% at 28% 55%, color-mix(in srgb, var(--marine) 70%, transparent), transparent 65%),
    linear-gradient(180deg, color-mix(in srgb, var(--marine) 35%, transparent) 0%, color-mix(in srgb, var(--marine) 30%, transparent) 35%, color-mix(in srgb, var(--marine) 82%, transparent) 100%);
}
.hero-video-overlay::after {
  content: "";
  position: absolute; inset: 0;
  background-image: var(--grain);
  opacity: 0.05;
  mix-blend-mode: overlay;
}
.hero-inner--video {
  position: relative;
  z-index: 2;
  max-width: var(--container-wide);
  margin: 0 auto;
  width: 100%;
}

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lagon-deep);
  margin: 0 0 18px;
}
.eyebrow--light { color: var(--lagon-light); }

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(52px, 8.4vw, 132px);
  line-height: 0.94;
  color: var(--paper);
  letter-spacing: -0.045em;
  text-transform: uppercase;
  max-width: 15ch;
}
.hero-title-accent { color: var(--lagon-light); }
.hero-title .serif-accent {
  /* homepage hero only — pre-reduction Instrument Serif accent restored here,
     scoped to this selector so methode.html's "lé après lé" (same .serif-accent
     class, but outside .hero-title) stays on Manrope italic as decided */
  font-family: 'Instrument Serif', serif;
  color: var(--gold-light);
  text-transform: none;
  font-size: 0.86em;
  letter-spacing: -0.01em;
}

.hero-sub {
  margin: 28px 0 36px;
  font-size: 18px;
  line-height: 1.6;
  color: color-mix(in srgb, var(--paper) 88%, transparent);
  max-width: 46ch;
}

.hero-actions { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; margin-bottom: 24px; }

/* staggered entrance animation, plays once on load */
.reveal { opacity: 0; transform: translateY(22px); animation: reveal-in 0.8s var(--ease) forwards; }
.reveal-1 { animation-delay: 0.15s; }
.reveal-2 { animation-delay: 0.32s; }
.reveal-3 { animation-delay: 0.5s; }
.reveal-4 { animation-delay: 0.68s; }
@keyframes reveal-in {
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; animation: none; }
}

.hero-scroll-cue {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 36px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: color-mix(in srgb, var(--paper) 65%, transparent);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0;
  animation: reveal-in 0.8s var(--ease) forwards;
  animation-delay: 1s;
  transition: color 0.2s var(--ease);
}
.hero-scroll-cue:hover, .hero-scroll-cue:focus-visible { color: var(--paper); }
.hero-scroll-cue-line {
  width: 1px;
  height: 34px;
  background: linear-gradient(180deg, currentColor, transparent);
  position: relative;
  overflow: hidden;
}
.hero-scroll-cue-line::after {
  content: "";
  position: absolute;
  left: 0; top: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(180deg, transparent, var(--lagon-light) 60%, transparent);
  animation: scroll-cue-drip 2.2s var(--ease) infinite;
}
@keyframes scroll-cue-drip {
  0% { top: -100%; }
  70%, 100% { top: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-scroll-cue-line::after { animation: none; display: none; }
}

@media (max-width: 780px) {
  .hero--video { height: 92vh; height: 92dvh; min-height: 520px; max-height: none; align-items: flex-end; padding: 90px 20px 64px; }
  .hero-scroll-cue { display: none; }
}

/* ---------- sections ---------- */
/* Simple gold separator between every section, top-anchored so each
   boundary gets exactly one line (never doubled). Same rule for every
   section regardless of light/dark variant — no per-page or per-junction
   variation. .footer gets the matching border-top below for the one
   boundary (last section -> footer) that .section itself doesn't cover. */
.section { padding: var(--space-8) 24px; border-top: 1px solid color-mix(in srgb, var(--gold) 35%, transparent); }
.section--roomy { padding-block: var(--space-10); }
.section--tight { padding-block: var(--space-7); }
.section--tint { background: var(--sand); }
.section--dark {
  background:
    radial-gradient(circle at 15% 20%, color-mix(in srgb, var(--lagon) 18%, transparent), transparent 45%),
    radial-gradient(circle at 85% 80%, color-mix(in srgb, var(--gold) 12%, transparent), transparent 45%),
    var(--marine);
  position: relative;
}
.section--dark::after {
  content: "";
  position: absolute; inset: 0;
  background-image: var(--grain);
  opacity: 0.04;
  mix-blend-mode: overlay;
  pointer-events: none;
}

/* Three.js water-ripple shader — discreet, sits behind the content, above the base gradient */
.water-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  opacity: 0.7;
}

.section-inner { position: relative; z-index: 1; max-width: var(--container); margin: 0 auto; }
.section-inner--wide { max-width: var(--container-wide); }
.section-inner--narrow { max-width: 720px; }

/* ---------- vertical seam rail (signature element) ----------
   A single continuous line, fixed to the left edge of the viewport, with
   dashes flowing top-to-bottom. It fills in as the person scrolls down the
   page — the seam keeps stitching the page together, never restarting. */
.seam-rail {
  position: fixed;
  top: 0; bottom: 0;
  left: 14px;
  width: 3px;
  z-index: 45;
  pointer-events: none;
}
.seam-rail-track {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    color-mix(in srgb, var(--gold) 16%, transparent) 0px, color-mix(in srgb, var(--gold) 16%, transparent) 5px,
    transparent 5px, transparent 14px
  );
  background-size: 3px 28px;
  animation: seam-flow 1.1s linear infinite;
  border-radius: 2px;
}
.seam-rail-fill {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 0%;
  background: repeating-linear-gradient(
    to bottom,
    var(--gold) 0px, var(--gold) 5px,
    transparent 5px, transparent 14px
  );
  background-size: 3px 28px;
  animation: seam-flow 1.1s linear infinite;
  border-radius: 2px;
  box-shadow: 0 0 10px color-mix(in srgb, var(--gold) 50%, transparent);
  transition: height 0.05s linear;
}
@keyframes seam-flow {
  from { background-position: 0 0; }
  to { background-position: 0 28px; }
}
@media (max-width: 780px) {
  .seam-rail { display: none; }
}

.section-title {
  font-size: clamp(32px, 4.4vw, 58px);
  color: var(--marine);
  max-width: 16ch;
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}
.section-title--light { color: var(--paper); }
.section-title .serif-accent { color: var(--gold); }
.section-title--light .serif-accent { color: var(--gold-light); }

/* ---------- section title reveal ("curtain lifts" per line, JS-driven) ---------- */
.split-line { display: block; overflow: hidden; }
.split-line-inner { display: block; }
.split-word { display: inline-block; }

.section-lede {
  font-size: 17.5px;
  color: var(--ink-soft);
  max-width: 58ch;
  line-height: 1.65;
  margin-bottom: var(--space-6);
}
.section-lede--light { color: color-mix(in srgb, var(--paper) 75%, transparent); }

/* ---------- key facts — bento stat grid, split into labeled groups ---------- */
.stat-groups {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}
.stat-group-title {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 14px;
}
.stat-grid {
  display: grid;
  gap: var(--space-4);
}
.stat-grid--material { grid-template-columns: 1.5fr 1fr; }
.stat-grid--practical { grid-template-columns: 1fr 1fr; }
.tab-chip {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  gap: 6px;
  min-height: 172px;
  padding: var(--space-5) var(--space-4);
  border-radius: var(--radius-l);
  border: 1px solid color-mix(in srgb, var(--marine) 10%, transparent);
  background: var(--paper);
  cursor: pointer;
  font-family: var(--font-body);
  text-align: left;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.tab-chip:focus-visible { outline-offset: -3px; }

.tab-chip--hero {
  grid-row: span 1;
  min-height: 224px;
  background: linear-gradient(155deg, var(--marine) 0%, #123c4d 55%, var(--marine-card-2) 100%);
  border-color: rgba(255,255,255,0.08);
}
.tab-chip--hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image: var(--grain);
  opacity: 0.05;
  mix-blend-mode: overlay;
  pointer-events: none;
}
.tab-chip--hero .tab-chip-label { color: color-mix(in srgb, var(--paper) 60%, transparent); }

.tab-chip-value {
  font-family: var(--font-display);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 2.6vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--marine);
  transition: color 0.3s var(--ease);
}
.tab-chip--hero .tab-chip-value { font-size: clamp(52px, 5.6vw, 84px); color: var(--lagon-light); letter-spacing: -0.03em; }
.stat-unit { font-size: 0.5em; font-weight: 500; opacity: 0.75; margin-left: 2px; }

.tab-chip-label {
  font-size: 12.5px;
  color: var(--ink-soft);
  transition: color 0.3s var(--ease);
}
.tab-chip.is-active:not(.tab-chip--hero) {
  border-color: var(--lagon);
  background: linear-gradient(160deg, color-mix(in srgb, var(--lagon) 10%, transparent), color-mix(in srgb, var(--gold) 6%, transparent));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--lagon) 25%, transparent), 0 14px 28px -16px color-mix(in srgb, var(--lagon) 45%, transparent);
}
.tab-chip.is-active:not(.tab-chip--hero) .tab-chip-value { color: var(--lagon); }
.tab-chip.is-active:not(.tab-chip--hero) .tab-chip-label { color: var(--ink); }
.tab-chip--hero.is-active { box-shadow: var(--glow-lagon); }

.tab-panels { position: relative; min-height: 88px; }
.tab-panel {
  display: none;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 62ch;
  animation: panel-fade 0.4s var(--ease);
}
.tab-panel strong { color: var(--marine); }
.tab-panel.is-active { display: block; }
@keyframes panel-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 560px) {
  .stat-grid--material,
  .stat-grid--practical { grid-template-columns: 1fr; }
}

/* ---------- methode / process — editorial ghost numerals ---------- */
.process {
  list-style: none;
  margin: 0; padding: 0;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6) var(--space-5);
}
.process-step {
  counter-increment: step;
  position: relative;
  padding-top: var(--space-4);
  border-top: 1px solid color-mix(in srgb, var(--paper) 14%, transparent);
}
.process-step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: -0.1em;
  right: 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 3.6vw, 56px);
  font-weight: 700;
  color: color-mix(in srgb, var(--paper) 7%, transparent);
  line-height: 1;
  z-index: 0;
  pointer-events: none;
}
.process-step > * { position: relative; z-index: 1; }
.process-index {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gold);
  display: block;
  margin-bottom: 14px;
}
.process-step h3 { color: var(--paper); font-size: 21px; margin-bottom: 10px; letter-spacing: -0.01em; }
.process-step p { color: color-mix(in srgb, var(--paper) 65%, transparent); font-size: 14.5px; line-height: 1.6; margin: 0; }

/* ---------- process step photos ---------- */
.process-img {
  aspect-ratio: 4/3;
  border-radius: var(--radius-m);
  overflow: hidden;
  margin-bottom: 18px;
  box-shadow: 0 16px 32px -16px rgba(0,0,0,0.5);
  transition: transform 0.4s var(--ease);
}
.process-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.5s var(--ease); }
.process-step:hover .process-img img { transform: scale(1.05); }

/* ---------- before/after gallery (single photo, click to reveal) ---------- */
.ba-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5) var(--space-4);
}
.ba-pair { margin: 0; }
.ba-toggle {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: none;
  padding: 0;
  cursor: pointer;
  background: var(--marine);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.ba-toggle:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.ba-toggle:active { transform: translateY(-4px) scale(0.98); }
.ba-toggle:focus-visible { outline-offset: -3px; }
.ba-toggle img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.5s var(--ease), transform 0.6s var(--ease);
}
.ba-toggle .ba-img-before { opacity: 1; z-index: 1; }
.ba-toggle .ba-img-after { opacity: 0; z-index: 2; transform: scale(1.04); }
.ba-toggle.is-after .ba-img-before { opacity: 0; }
.ba-toggle.is-after .ba-img-after { opacity: 1; transform: scale(1); }

.ba-tag {
  position: absolute;
  top: 12px; left: 12px;
  z-index: 3;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 5px 10px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--marine) 70%, transparent);
  color: var(--paper);
  backdrop-filter: blur(4px);
  transition: background 0.3s var(--ease);
}
.ba-toggle.is-after .ba-tag { background: color-mix(in srgb, var(--lagon) 80%, transparent); }

.ba-hint {
  position: absolute;
  bottom: 12px; right: 12px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  color: var(--marine);
}
.ba-hint svg { transition: transform 0.3s var(--ease); }
.ba-toggle.is-after .ba-hint svg { transform: rotate(180deg); }

.ba-pair figcaption { margin-top: 14px; font-size: 13.5px; color: var(--ink-soft); letter-spacing: 0.01em; }

@media (max-width: 780px) {
  .ba-grid { grid-template-columns: 1fr; }
}

/* ---------- coulisses du chantier — mosaic gallery ---------- */
.coulisses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 140px;
  grid-auto-flow: dense;
  gap: var(--space-3);
}
.coulisses-item {
  margin: 0;
  position: relative;
  border-radius: var(--radius-m);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.coulisses-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease);
}
@media (hover: hover) and (pointer: fine) {
  .coulisses-item:hover img { transform: scale(1.06); }
}
.coulisses-item--lg { grid-column: span 2; grid-row: span 2; }
.coulisses-item--wide { grid-column: span 2; }
.coulisses-item--tall { grid-row: span 2; }

@media (max-width: 780px) {
  .coulisses-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 160px; }
}
@media (max-width: 480px) {
  .coulisses-grid { grid-template-columns: 1fr; grid-auto-rows: 220px; }
  .coulisses-item--lg, .coulisses-item--wide, .coulisses-item--tall { grid-column: span 1; grid-row: span 1; }
}

/* ---------- membrane 3D cross-section (Three.js, exploded view on scroll) ---------- */
.membrane-scene {
  position: relative;
  height: clamp(420px, 52vw, 620px);
  margin-bottom: var(--space-7);
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, var(--paper) 0%, var(--sand) 100%);
  border: 1px solid color-mix(in srgb, var(--marine) 8%, transparent);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.membrane-scene canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: pan-y;
}
.membrane-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}
.membrane-label {
  position: absolute;
  top: 0; left: 0;
  transform: translate(-9999px, -9999px);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 10px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(4px);
  border: 1px solid color-mix(in srgb, var(--marine) 10%, transparent);
  box-shadow: var(--shadow-sm);
  color: var(--marine);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  opacity: 0;
  will-change: transform, opacity;
}
.membrane-label::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--lagon);
  flex-shrink: 0;
}
.membrane-label[data-layer="core"]::before { background: var(--gold); }
.membrane-label em { font-style: normal; color: var(--ink-soft); }
.membrane-scene-hint {
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  margin: 0;
  padding: 6px 14px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--marine) 55%, transparent);
  backdrop-filter: blur(4px);
  color: var(--paper);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  z-index: 2;
  pointer-events: none;
  transition: opacity 0.4s var(--ease);
}
.membrane-scene.is-explored .membrane-scene-hint { opacity: 0; }
@media (max-width: 640px) {
  .membrane-scene { height: 380px; }
  .membrane-label { font-size: 11px; padding: 6px 12px 6px 9px; }
}

/* ---------- compare grid (icon badges, no plain +/- text) ---------- */
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.compare-card {
  padding: var(--space-6) var(--space-5);
  border-radius: var(--radius-xl);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.compare-card--dim { background: var(--sand); border: 1px solid var(--sand-deep); }
.compare-card--lit {
  background: linear-gradient(160deg, var(--marine) 0%, var(--marine-card-2) 100%);
  color: var(--paper);
  box-shadow: var(--glow-lagon);
  border: 1px solid rgba(255,255,255,0.06);
}
.compare-card:hover { transform: translateY(-4px); }
.compare-card--dim:hover { box-shadow: var(--shadow-md); }
.compare-card--lit:hover { box-shadow: var(--glow-lagon), var(--shadow-xl); }
.compare-label { font-family: var(--font-mono); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft); margin: 0 0 22px; }
.compare-label--accent { color: var(--lagon-light); }
.compare-card ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 16px; }
.compare-card li { padding-left: 32px; position: relative; font-size: 15px; line-height: 1.5; }
.compare-card li::before {
  content: "–";
  position: absolute; left: 0; top: 0;
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; line-height: 1;
  background: color-mix(in srgb, var(--marine) 8%, transparent);
  color: var(--ink-soft);
}
.compare-card--lit li::before {
  content: "✓";
  background: color-mix(in srgb, var(--lagon) 28%, transparent);
  color: var(--lagon-light);
}

/* ---------- finitions — sample folders, fan-out on click ---------- */
.finish-folders {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.finish-folder {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  font-family: var(--font-body);
  text-align: center;
}

.finish-stage {
  position: relative;
  width: 100%;
  height: 260px;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.finish-chip {
  position: absolute;
  bottom: 6px;
  width: 120px;
  height: 166px;
  border-radius: var(--radius-s);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.finish-chip img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* rest position (no JS / before scroll) — a small tilted pile, like cards in
   a folder. The scroll-scrubbed fan-out (js/script.js) overrides these via
   inline transform once GSAP/ScrollTrigger takes over. */
.finish-chip--0 { transform: translate(8px, 6px) rotate(-6deg); z-index: 10; }
.finish-chip--1 { transform: translate(0, 0) rotate(0deg); z-index: 12; }
.finish-chip--2 { transform: translate(-8px, 6px) rotate(6deg); z-index: 10; }

.finish-folder-name { font-family: var(--font-display); font-weight: 600; font-size: 17px; color: var(--marine); margin: 0 0 4px; letter-spacing: -0.01em; }
.finish-folder-sub { font-family: var(--font-mono); font-weight: 600; font-variant-numeric: tabular-nums; font-size: 12px; color: var(--ink-soft); margin: 0; letter-spacing: 0.02em; }
.finish-note { margin-top: var(--space-5); font-size: 13px; color: var(--ink-soft); font-style: italic; }

@media (max-width: 900px) {
  .finish-stage { height: 220px; }
  .finish-chip { width: 102px; height: 142px; }
}
@media (max-width: 640px) {
  .finish-folders { grid-template-columns: 1fr; }
}

/* ---------- faq ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--paper);
  border: 1px solid color-mix(in srgb, var(--marine) 10%, transparent);
  border-radius: var(--radius-m);
  padding: 6px 24px;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.faq-item summary {
  padding: 18px 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--marine);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--lagon);
  transition: transform 0.2s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--lagon); }
.faq-item summary:focus-visible { outline-offset: 3px; border-radius: var(--radius-s); }
.faq-item[open] { border-color: color-mix(in srgb, var(--lagon) 30%, transparent); box-shadow: 0 12px 28px -20px color-mix(in srgb, var(--marine) 25%, transparent); }
.faq-item p { margin: 0 0 20px; color: var(--ink-soft); font-size: 15px; line-height: 1.6; }

/* ---------- zones ---------- */
.zones-list { display: flex; flex-wrap: wrap; gap: 12px; }
.zones-list span {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  padding: 10px 18px;
  border-radius: 100px;
  border: 1px solid color-mix(in srgb, var(--marine) 15%, transparent);
  color: var(--marine);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}
.zones-list span:hover { border-color: var(--lagon); color: var(--lagon-deep); background: color-mix(in srgb, var(--lagon) 6%, transparent); }

/* ---------- devis form — glass panel on dark ---------- */
.devis-form {
  display: flex; flex-direction: column; gap: 20px;
  margin-top: var(--space-6);
  padding: var(--space-6);
  background: color-mix(in srgb, var(--paper) 4%, transparent);
  border: 1px solid color-mix(in srgb, var(--paper) 10%, transparent);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(8px);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.devis-form label { display: flex; flex-direction: column; gap: 8px; }
.devis-form label span { font-size: 12.5px; font-weight: 600; letter-spacing: 0.03em; color: color-mix(in srgb, var(--paper) 70%, transparent); font-family: var(--font-mono); }
.devis-form input, .devis-form select, .devis-form textarea {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 13px 14px;
  border-radius: var(--radius-s);
  border: 1px solid color-mix(in srgb, var(--paper) 20%, transparent);
  background: color-mix(in srgb, var(--paper) 6%, transparent);
  color: var(--paper);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.devis-form input::placeholder, .devis-form textarea::placeholder { color: color-mix(in srgb, var(--paper) 40%, transparent); }
.devis-form input:focus, .devis-form select:focus, .devis-form textarea:focus {
  outline: 2px solid var(--lagon-light);
  outline-offset: 1px;
  background: color-mix(in srgb, var(--paper) 10%, transparent);
  border-color: color-mix(in srgb, var(--lagon-light) 50%, transparent);
}
.form-full { grid-column: 1 / -1; }
.form-file input { padding: 10px; }
.form-actions { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }
@media (min-width: 640px) { .form-actions { flex-direction: row; } }
.form-note { font-size: 12.5px; color: color-mix(in srgb, var(--paper) 60%, transparent); text-align: center; margin: 4px 0 0; }

/* ---------- footer ---------- */
.footer { background: var(--marine-card); color: color-mix(in srgb, var(--paper) 70%, transparent); padding: var(--space-7) 24px var(--space-4); border-top: 1px solid color-mix(in srgb, var(--gold) 35%, transparent); }
/* index/methode/realisations: footer sits directly under the dark
   cta-band — marine into marine-card, no real colour change, so no
   separator there. contact.html/legal pages keep the default .footer
   border-top since their footer follows a light section. */
.footer--seamless { border-top: none; }
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: var(--space-5);
  border-bottom: 1px solid color-mix(in srgb, var(--paper) 10%, transparent);
}
.footer-brand { display: flex; flex-direction: column; gap: 12px; }
.footer-brand .nav-logo-text { color: var(--paper); }
/* image-based footer logo (index/methode/realisations/contact) — more
   generous than the header mark, dark-bg SVG already matches the footer */
.footer-logo { height: 72px; width: auto; display: block; }
.footer-brand p { font-size: 13.5px; line-height: 1.6; max-width: 34ch; margin: 8px 0 0; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col h3 { font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: color-mix(in srgb, var(--paper) 65%, transparent); margin: 0 0 4px; font-weight: 500; }
.footer-col a, .footer-col span { font-size: 14px; }
.footer-col a:hover { color: var(--lagon-light); }
.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding-top: 24px;
  font-size: 12.5px;
  color: color-mix(in srgb, var(--paper) 65%, transparent);
}

/* ---------- legal-content (mentions légales / confidentialité) — plain article layout, no reveal/animation ---------- */
.legal-content { padding-block: var(--space-2) var(--space-8); }
.legal-content h2 { font-size: 22px; color: var(--marine); margin: var(--space-6) 0 var(--space-3); }
.legal-content h2:first-child { margin-top: 0; }
.legal-content p { margin: 0 0 var(--space-3); font-size: 15.5px; line-height: 1.7; color: var(--ink); }
.legal-content ul { margin: 0 0 var(--space-3); padding-left: 22px; }
.legal-content li { font-size: 15.5px; line-height: 1.7; color: var(--ink); margin-bottom: 6px; }
.legal-content a { color: var(--lagon-deep); text-decoration: underline; text-underline-offset: 2px; }
.legal-content a:hover { color: var(--lagon); }

/* ---------- breadcrumb (sub-pages) ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--lagon-deep); transition: color 0.2s var(--ease); }
.breadcrumb a:hover { color: var(--lagon); }
.breadcrumb--light { color: color-mix(in srgb, var(--paper) 50%, transparent); }
.breadcrumb--light a { color: var(--lagon-light); }

/* ---------- section--mesh: subtle tinted gradient, used behind "pourquoi nous" ---------- */
.section--mesh {
  position: relative;
  background:
    radial-gradient(ellipse 60% 50% at 12% 15%, color-mix(in srgb, var(--lagon) 7%, transparent), transparent 60%),
    radial-gradient(ellipse 55% 60% at 88% 10%, color-mix(in srgb, var(--gold) 9%, transparent), transparent 55%),
    radial-gradient(ellipse 70% 55% at 50% 105%, color-mix(in srgb, var(--sand-deep) 50%, transparent), transparent 65%),
    var(--paper);
}
.section--mesh::after {
  content: "";
  position: absolute; inset: 0;
  background-image: var(--grain);
  opacity: 0.025;
  mix-blend-mode: multiply;
  pointer-events: none;
}

/* ---------- differentiation cards (homepage "pourquoi nous") ---------- */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  counter-reset: diffnum;
}
.diff-card {
  position: relative;
  overflow: hidden;
  padding: var(--space-6) var(--space-5);
  border-radius: var(--radius-xl);
  background: var(--paper);
  border: 1px solid color-mix(in srgb, var(--marine) 8%, transparent);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.diff-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.diff-card::before {
  content: counter(diffnum, decimal-leading-zero);
  counter-increment: diffnum;
  position: absolute;
  top: 6px; right: 20px;
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 700;
  color: color-mix(in srgb, var(--marine) 5%, transparent);
  line-height: 1;
  pointer-events: none;
  z-index: 0;
}
.diff-card > * { position: relative; z-index: 1; }
.diff-icon-wrap { position: relative; width: 56px; height: 56px; margin-bottom: 20px; }
.diff-icon-ring { position: absolute; inset: 0; width: 56px; height: 56px; }
.diff-icon-ring circle {
  fill: none;
  stroke: var(--lagon);
  stroke-width: 1.5;
  stroke-dasharray: 163.4;
  stroke-dashoffset: 0;
}
.diff-icon {
  position: absolute;
  top: 6px; left: 6px;
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--lagon) 10%, transparent);
  color: var(--lagon);
}
.diff-card h3 { font-size: 19px; color: var(--marine); margin-bottom: 10px; letter-spacing: -0.01em; }
.diff-card p { font-size: 14.5px; color: var(--ink-soft); line-height: 1.6; margin: 0; }

/* ---------- teaser grids (homepage réalisations preview) ---------- */
.teaser-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}
.teaser-grid figure { margin: 0; }
.teaser-grid img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease);
}
.teaser-grid img:hover { transform: translateY(-4px); }
.teaser-grid figcaption { margin-top: 10px; font-size: 12.5px; color: var(--ink-soft); }
.teaser-cta { margin-top: var(--space-5); }

/* ---------- callout (reassurance line: délai chantier, garantie, etc.) ---------- */
.callout {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 22px;
  border-radius: var(--radius-l);
  background: color-mix(in srgb, var(--lagon) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--lagon) 18%, transparent);
  margin-top: var(--space-5);
}
.callout svg { color: var(--lagon); flex-shrink: 0; margin-top: 2px; }
.callout p { margin: 0; font-size: 14.5px; color: var(--ink); line-height: 1.55; }
.callout strong { color: var(--marine); }
.callout--light { background: color-mix(in srgb, var(--paper) 6%, transparent); border-color: color-mix(in srgb, var(--paper) 15%, transparent); }
.callout--light svg { color: var(--lagon-light); }
.callout--light p { color: color-mix(in srgb, var(--paper) 85%, transparent); }
.callout--light strong { color: var(--paper); }

/* ---------- phone CTA banner (contact page) ---------- */
.phone-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, color-mix(in srgb, var(--lagon) 16%, transparent), color-mix(in srgb, var(--gold) 8%, transparent));
  border: 1px solid color-mix(in srgb, var(--lagon) 28%, transparent);
  margin-bottom: var(--space-6);
}
.phone-cta-text { max-width: 46ch; }
.phone-cta-text p { margin: 6px 0 0; color: color-mix(in srgb, var(--paper) 80%, transparent); font-size: 15px; line-height: 1.55; }
.phone-cta-text strong { color: var(--gold-light); }

/* ---------- CTA band (final section, centered) ---------- */
.cta-band { text-align: center; }
.cta-band .section-inner { display: flex; flex-direction: column; align-items: center; }
.cta-band .section-title,
.cta-band .section-lede { margin-left: auto; margin-right: auto; }
.cta-band-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: var(--space-2); }

@media (max-width: 780px) {
  .diff-grid { grid-template-columns: 1fr; }
  .teaser-grid { grid-template-columns: 1fr 1fr; }
  .phone-cta { flex-direction: column; align-items: flex-start; }
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  /* the "Devis gratuit" pill is dropped from the header row below this breakpoint:
     combined with the call button and burger it overflowed the viewport on phones
     (header ~474px wide at a 390px viewport, pushing the burger off-screen). The
     equivalent CTA already exists as the persistent .mobile-cta-bar at the bottom
     of the screen, so nothing is lost — only .btn-call stays in the nav row. */
  .nav-cta .btn-primary { display: none; }
  .nav-links { display: none; }
  .nav-links.nav-links--open {
    display: flex;
    flex-direction: column;
    gap: 2px;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 12px 24px 20px;
    background: var(--paper);
    border-bottom: 1px solid color-mix(in srgb, var(--marine) 8%, transparent);
    box-shadow: 0 20px 34px -22px color-mix(in srgb, var(--marine) 35%, transparent);
    animation: nav-drop-in 0.25s var(--ease);
  }
  .nav-links--open a {
    padding: 12px 4px;
    font-size: 15.5px;
    border-radius: var(--radius-s);
  }
  .nav-links--open a:hover, .nav-links--open a:focus-visible { background: color-mix(in srgb, var(--lagon) 8%, transparent); padding-left: 10px; }
  @keyframes nav-drop-in {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .nav-burger { display: flex; }
  .nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .nav-burger span { transition: transform 0.25s var(--ease), opacity 0.25s var(--ease); }
  .compare-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .mobile-cta-bar {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 90;
    /* var(--lagon) with white text was ~3.62:1 — fails WCAG AA 4.5:1 for 15px text */
    background: var(--lagon-deep);
    color: var(--paper);
    padding: 16px 24px;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    font-size: 15px;
  }
  body { padding-bottom: 62px; }
}

@media (max-width: 640px) {
  .section { padding: var(--space-6) 20px; }
  .section--roomy { padding-block: var(--space-8); }
  .process { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .nav-cta .btn-call span { display: none; }
}