/* ==========================================================================
   PTP — Perrot Travaux Publics
   Feuille de style unique. Organisation par couches (cascade layers) :
   reset → tokens → base → layout → components → pages → utilities
   ========================================================================== */

@layer reset, tokens, base, layout, components, pages, utilities;

/* --------------------------------------------------------------------------
   Fonts (auto-hébergées, variables)
   -------------------------------------------------------------------------- */
@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-latin-wdth-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-latin-wdth-italic.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Manrope";
  src: url("../fonts/manrope-latin-wght-normal.woff2") format("woff2");
  font-weight: 200 800;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   Reset
   -------------------------------------------------------------------------- */
@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; }
  html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
  body { min-height: 100svh; }
  img, svg, picture { display: block; max-width: 100%; }
  input, button, select, textarea { font: inherit; color: inherit; }
  button { cursor: pointer; background: none; border: 0; }
  a { color: inherit; text-decoration: none; }
  ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
  h1, h2, h3, h4 { text-wrap: balance; }
  p { text-wrap: pretty; }
}

/* --------------------------------------------------------------------------
   Tokens
   -------------------------------------------------------------------------- */
@layer tokens {
  :root {
    color-scheme: dark;

    /* Couleurs — bitume, papier, godet */
    --bg: #0b0b0a;
    --bg-2: #11110f;
    --surface: #171714;
    --surface-2: #1e1d1a;
    --line: rgb(243 239 230 / 0.09);
    --line-strong: rgb(243 239 230 / 0.18);
    --text: #f3efe6;
    --muted: #a8a397;
    --faint: #6f6b62;
    --accent: #f7a928;
    --accent-hot: #ef8a1b;
    --accent-pale: #ffcf5c;
    --accent-soft: rgb(247 169 40 / 0.12);
    --gradient: linear-gradient(100deg, var(--accent-hot) 0%, var(--accent) 45%, var(--accent-pale) 100%);

    /* Typo */
    --font-display: "Archivo", "Arial Black", system-ui, sans-serif;
    --font-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

    --step--1: clamp(0.8rem, 0.78rem + 0.1vw, 0.86rem);
    --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.1rem);
    --step-1: clamp(1.2rem, 1.1rem + 0.45vw, 1.45rem);
    --step-2: clamp(1.5rem, 1.3rem + 0.9vw, 2.05rem);
    --step-3: clamp(1.95rem, 1.5rem + 2vw, 3.2rem);
    --step-4: clamp(2.35rem, 1.5rem + 3.9vw, 4.9rem);

    /* Espacements */
    --space-2xs: 0.375rem;
    --space-xs: 0.625rem;
    --space-s: 1rem;
    --space-m: 1.5rem;
    --space-l: 2.5rem;
    --space-xl: clamp(3rem, 2rem + 4vw, 5.5rem);
    --space-2xl: clamp(4.5rem, 3rem + 7vw, 9rem);

    --gutter: clamp(1rem, 0.5rem + 2.5vw, 2.5rem);
    --container: 78rem;
    --radius: 4px;
    --radius-l: 10px;
    --header-h: 4.25rem;

    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --dur: 0.7s;
  }
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */
@layer base {
  html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 1rem);
    background: var(--bg);
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
  }

  body {
    font-family: var(--font-body);
    font-size: var(--step-0);
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: clip;
  }

  /* Grille millimétrée + grain, fixes derrière tout le contenu */
  body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 96px 96px;
    mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 85%);
    opacity: 0.55;
  }

  h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 800;
    font-stretch: 108%;
    line-height: 1.02;
    letter-spacing: -0.025em;
  }
  h1 { font-size: var(--step-4); }
  h2 { font-size: var(--step-3); }
  h3 { font-size: var(--step-2); letter-spacing: -0.015em; }

  h1 em, h2 em {
    font-style: italic;
    font-stretch: 100%;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    padding-inline-end: 0.06em;
  }

  ::selection { background: var(--accent); color: var(--bg); }

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

  strong { font-weight: 700; color: var(--text); }
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
@layer layout {
  .container {
    width: min(100% - 2 * var(--gutter), var(--container));
    margin-inline: auto;
  }

  .section {
    padding-block: var(--space-2xl);
    position: relative;
  }
  .section + .section { border-top: 1px solid var(--line); }

  .section-head {
    display: grid;
    gap: var(--space-m);
    margin-bottom: var(--space-xl);
    max-width: 48rem;
  }
  .section-head p:not(.micro) { color: var(--muted); font-size: var(--step-1); max-width: 40rem; }

  .split {
    display: grid;
    gap: var(--space-xl);
  }
  @media (min-width: 60rem) {
    .split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
  }
}

/* --------------------------------------------------------------------------
   Components
   -------------------------------------------------------------------------- */
@layer components {

  /* Micro-libellés façon plan / HUD */
  .micro {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    line-height: 1.4;
  }
  .micro--accent { color: var(--accent); }
  .micro .sep { color: var(--faint); margin-inline: 0.5em; }

  .index {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
  }
  .index::after {
    content: "";
    width: 3rem;
    height: 1px;
    background: currentColor;
    opacity: 0.5;
  }

  /* Ligne de cote (trait de mesure) */
  .dim {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--faint);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
  }
  .dim::before, .dim::after {
    content: "";
    flex: 1;
    height: 1px;
    background:
      linear-gradient(currentColor, currentColor) left / 1px 9px no-repeat,
      linear-gradient(currentColor, currentColor) center / 100% 1px no-repeat;
    transform-origin: left;
  }
  .dim::after {
    background:
      linear-gradient(currentColor, currentColor) right / 1px 9px no-repeat,
      linear-gradient(currentColor, currentColor) center / 100% 1px no-repeat;
    transform-origin: right;
  }

  /* Boutons */
  .btn {
    --_bg: transparent;
    --_fg: var(--text);
    --_bd: var(--line-strong);
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    min-height: 3.25rem;
    padding: 0.5rem 0.5rem 0.5rem 1.25rem;
    border: 1px solid var(--_bd);
    border-radius: var(--radius);
    background: var(--_bg);
    color: var(--_fg);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: background-color 0.25s, border-color 0.25s, color 0.25s, transform 0.25s var(--ease-out);
  }
  .btn__icon {
    display: grid;
    place-items: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 2px;
    background: rgb(243 239 230 / 0.08);
    transition: transform 0.35s var(--ease-out), background-color 0.25s;
  }
  .btn__icon svg { width: 1rem; height: 1rem; }
  .btn:hover { --_bd: var(--accent); }
  .btn:hover .btn__icon { transform: translate(2px, -2px); }

  .btn--primary {
    --_bg: var(--accent);
    --_fg: #14110b;
    --_bd: var(--accent);
  }
  .btn--primary .btn__icon { background: rgb(0 0 0 / 0.12); }
  .btn--primary:hover { --_bg: var(--accent-pale); --_bd: var(--accent-pale); }

  .link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
    transition: border-color 0.25s;
  }
  .link-arrow:hover { border-color: currentColor; }

  /* ---------------- Header ---------------- */
  .skip-link {
    position: absolute;
    left: var(--gutter);
    top: -4rem;
    z-index: 100;
    padding: 0.75rem 1rem;
    background: var(--accent);
    color: var(--bg);
    font-weight: 700;
  }
  .skip-link:focus { top: 0.75rem; }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    height: var(--header-h);
    border-bottom: 1px solid transparent;
    transition: background-color 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  }
  .site-header[data-scrolled="true"] {
    background: rgb(11 11 10 / 0.78);
    backdrop-filter: blur(14px) saturate(1.3);
    -webkit-backdrop-filter: blur(14px) saturate(1.3);
    border-color: var(--line);
  }
  .site-header__inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-m);
  }
  .brand { display: flex; align-items: center; gap: 0.9rem; }
  .brand img { width: 4.6rem; height: auto; }
  .brand__status { display: none; }
  @media (min-width: 72rem) {
    .brand__status {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding-left: 0.9rem;
      border-left: 1px solid var(--line-strong);
    }
  }

  .pulse {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 0 rgb(247 169 40 / 0.6);
    animation: pulse 2.4s infinite;
    flex: none;
  }
  @keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgb(247 169 40 / 0.55); }
    70%, 100% { box-shadow: 0 0 0 9px rgb(247 169 40 / 0); }
  }

  .nav { display: flex; align-items: center; gap: var(--space-m); }
  .nav__list {
    display: flex;
    gap: 1.75rem;
    list-style: none;
    padding: 0;
  }
  .nav__list a {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    transition: color 0.2s;
  }
  .nav__list a:hover, .nav__list a[aria-current="page"] { color: var(--text); }
  .nav__list a[aria-current="page"]::before { content: "◆ "; color: var(--accent); font-size: 0.6em; vertical-align: 0.2em; }
  .nav__phone { min-height: 2.75rem; padding-block: 0.3rem; }
  .nav__phone .btn__icon { width: 1.9rem; height: 1.9rem; }

  .nav-toggle { display: none; }

  @media (max-width: 56rem) {
    .nav-toggle {
      display: grid;
      place-items: center;
      width: 2.75rem;
      height: 2.75rem;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius);
    }
    .nav-toggle span,
    .nav-toggle span::before {
      display: block;
      width: 1.1rem;
      height: 1.5px;
      background: var(--text);
      transition: transform 0.3s var(--ease-out);
    }
    .nav-toggle span { position: relative; transform: translateY(-3px); }
    .nav-toggle span::before { content: ""; position: absolute; top: 6px; }
    .nav-toggle[aria-expanded="true"] span { transform: rotate(45deg); }
    .nav-toggle[aria-expanded="true"] span::before { transform: translateY(-6px) rotate(-90deg); }

    .nav__panel {
      position: fixed;
      inset: var(--header-h) 0 auto 0;
      padding: var(--space-l) var(--gutter) var(--space-xl);
      background: var(--bg);
      border-bottom: 1px solid var(--line);
      display: grid;
      gap: var(--space-l);
      translate: 0 -0.75rem;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.3s, translate 0.35s var(--ease-out), visibility 0.3s;
    }
    .nav__panel[data-open="true"] { opacity: 1; translate: 0 0; visibility: visible; }
    .nav__list { flex-direction: column; gap: 0; }
    .nav__list li { border-bottom: 1px solid var(--line); }
    .nav__list a {
      display: block;
      padding-block: 1rem;
      font-family: var(--font-display);
      font-size: var(--step-2);
      font-weight: 700;
      letter-spacing: -0.01em;
      text-transform: none;
      color: var(--text);
    }
  }
  @media (min-width: 56.01rem) {
    .nav__panel { display: flex; align-items: center; gap: 2rem; }
  }

  /* ---------------- Hero ---------------- */
  .hero {
    position: relative;
    padding-block: clamp(2.5rem, 1rem + 6vw, 6rem) var(--space-xl);
    isolation: isolate;
  }
  .hero__grid {
    display: grid;
    gap: var(--space-xl);
    align-items: center;
  }
  @media (min-width: 64rem) {
    .hero__grid { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); }
  }
  .hero__content { display: grid; gap: var(--space-m); }
  .hero__lead { color: var(--muted); font-size: var(--step-1); max-width: 36rem; line-height: 1.55; }
  .hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: var(--space-2xs); }

  .hero__glow {
    position: absolute;
    z-index: -1;
    width: 46rem;
    aspect-ratio: 1;
    right: -14rem;
    top: -10rem;
    border-radius: 50%;
    background: radial-gradient(closest-side, rgb(239 138 27 / 0.2), transparent);
    filter: blur(20px);
    pointer-events: none;
  }

  .hero__visual {
    position: relative;
    aspect-ratio: 1;
    width: min(100%, 34rem);
    justify-self: center;
  }
  .topo { position: absolute; inset: 0; width: 100%; height: 100%; }
  .hero__logo {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 58%;
    translate: -50% -50%;
    filter: drop-shadow(0 20px 50px rgb(0 0 0 / 0.6));
  }
  .hero__crosshair {
    position: absolute;
    inset: 0;
    pointer-events: none;
  }
  .hero__crosshair::before, .hero__crosshair::after {
    content: "";
    position: absolute;
    background: var(--line-strong);
  }
  .hero__crosshair::before { left: 0; right: 0; top: 50%; height: 1px; mask-image: linear-gradient(90deg, #000 0 12%, transparent 12% 88%, #000 88%); }
  .hero__crosshair::after { top: 0; bottom: 0; left: 50%; width: 1px; mask-image: linear-gradient(#000 0 12%, transparent 12% 88%, #000 88%); }

  .tag {
    position: absolute;
    display: grid;
    gap: 0.15rem;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: rgb(17 17 15 / 0.82);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }
  .tag b { font-family: var(--font-mono); font-size: 0.82rem; font-weight: 600; letter-spacing: 0.04em; }
  .tag--tl { left: 0; top: 8%; }
  .tag--br { right: 0; bottom: 10%; }
  @media (max-width: 30rem) { .tag { display: none; } }

  .hero__data {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: var(--space-xl);
    border-top: 1px solid var(--line);
  }
  @media (min-width: 48rem) { .hero__data { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
  .hero__data div {
    padding: var(--space-m) var(--space-s) 0 0;
    display: grid;
    gap: 0.35rem;
  }
  .hero__data dd {
    font-family: var(--font-display);
    font-size: var(--step-2);
    font-weight: 800;
    font-stretch: 110%;
    letter-spacing: -0.02em;
    line-height: 1;
  }
  .hero__data dd span { color: var(--accent); }

  /* ---------------- Marquee ---------------- */
  .marquee {
    border-block: 1px solid var(--line);
    background: var(--bg-2);
    overflow: hidden;
    padding-block: 1.1rem;
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  }
  .marquee__track {
    display: flex;
    width: max-content;
    animation: marquee 38s linear infinite;
  }
  .marquee__track ul {
    display: flex;
    gap: 2.5rem;
    padding-right: 2.5rem;
    list-style: none;
    padding-left: 0;
  }
  .marquee li {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    font-family: var(--font-display);
    font-size: var(--step-1);
    font-weight: 700;
    font-stretch: 115%;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    white-space: nowrap;
  }
  .marquee li::after { content: "◆"; color: var(--accent); font-size: 0.55em; }
  .marquee li:nth-child(even) { color: transparent; -webkit-text-stroke: 1px var(--muted); }
  @keyframes marquee { to { transform: translateX(-50%); } }

  /* ---------------- Coupe de terrain (métiers) ---------------- */
  .strata {
    display: grid;
    gap: var(--space-xl);
  }
  @media (min-width: 60rem) {
    .strata { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-2xl); }
    .strata__visual { position: sticky; top: calc(var(--header-h) + 2rem); align-self: start; }
  }

  .strata__visual {
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    background: var(--bg-2);
    padding: var(--space-m);
    display: grid;
    gap: var(--space-s);
  }
  .strata__head { display: flex; justify-content: space-between; gap: 1rem; }
  .strata__svg { width: 100%; height: auto; }
  @media (max-width: 59.99rem) {
    .strata__visual { display: none; }
  }

  /* états des couches */
  .strata__svg .layer-fill { transition: fill-opacity 0.6s, opacity 0.6s; fill-opacity: 0.35; }
  .strata__svg .layer-label { transition: fill 0.4s; fill: var(--faint); }
  .strata__svg .layer-hatch { transition: opacity 0.6s; opacity: 0.25; }
  .strata__svg .layer-detail { transition: opacity 0.6s, stroke 0.4s; opacity: 0.35; }
  [data-active="1"] .strata__svg .l1 .layer-hatch,
  [data-active="2"] .strata__svg .l2 .layer-hatch,
  [data-active="3"] .strata__svg .l3 .layer-hatch { opacity: 1; }
  [data-active="1"] .strata__svg .l1 .layer-fill,
  [data-active="2"] .strata__svg .l2 .layer-fill,
  [data-active="3"] .strata__svg .l3 .layer-fill { fill-opacity: 1; }
  [data-active="1"] .strata__svg .l1 .layer-label,
  [data-active="2"] .strata__svg .l2 .layer-label,
  [data-active="3"] .strata__svg .l3 .layer-label { fill: var(--accent); }
  [data-active="1"] .strata__svg .l1 .layer-detail,
  [data-active="2"] .strata__svg .l2 .layer-detail,
  [data-active="3"] .strata__svg .l3 .layer-detail { opacity: 1; }

  .strata__cursor { transition: transform 0.7s var(--ease-out); }
  [data-active="2"] .strata__cursor { transform: translateY(130px); }
  [data-active="3"] .strata__cursor { transform: translateY(325px); }

  .strata__depth {
    font-family: var(--font-mono);
    font-size: var(--step-2);
    font-weight: 600;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
  }

  .strata__steps { display: grid; gap: var(--space-l); }
  @media (min-width: 60rem) {
    .strata__steps { gap: 0; }
    .strata__step { min-height: 72vh; display: flex; flex-direction: column; justify-content: center; }
    .strata__step:last-child { min-height: 60vh; }
  }

  .strata__step { transition: opacity 0.5s; }
  @media (min-width: 60rem) {
    [data-active] .strata__step:not([data-current]) { opacity: 0.35; }
  }

  .service-card {
    display: grid;
    gap: var(--space-s);
    padding-block: var(--space-m);
  }
  .service-card__band {
    height: 10px;
    border-radius: 2px;
    margin-bottom: var(--space-2xs);
  }
  @media (min-width: 60rem) { .service-card__band { display: none; } }
  .band--1 { background: repeating-linear-gradient(90deg, var(--accent) 0 3px, transparent 3px 7px), #2a2519; }
  .band--2 { background: repeating-linear-gradient(135deg, var(--accent) 0 1.5px, transparent 1.5px 7px), #231c14; }
  .band--3 { background: repeating-linear-gradient(45deg, var(--accent) 0 1.5px, transparent 1.5px 5px), #1b1712; }

  .service-card h3 { font-size: var(--step-3); }
  .service-card p { color: var(--muted); max-width: 34rem; }
  .ticks {
    list-style: none;
    padding: 0;
    display: grid;
    gap: 0;
    border-top: 1px solid var(--line);
    margin-block: var(--space-2xs) var(--space-xs);
  }
  .ticks li {
    display: flex;
    gap: 0.9rem;
    align-items: baseline;
    padding-block: 0.7rem;
    border-bottom: 1px solid var(--line);
    font-size: 0.97rem;
  }
  .ticks li::before {
    content: "";
    flex: none;
    width: 7px;
    height: 7px;
    background: var(--accent);
    translate: 0 -1px;
    rotate: 45deg;
  }

  /* ---------------- Parcours ---------------- */
  .timeline {
    list-style: none;
    padding: 0;
    display: grid;
    gap: 0;
    counter-reset: step;
  }
  @media (min-width: 48rem) { .timeline { grid-template-columns: repeat(2, 1fr); } }
  @media (min-width: 72rem) { .timeline { grid-template-columns: repeat(4, 1fr); } }
  .timeline li {
    position: relative;
    padding: var(--space-m) var(--space-m) var(--space-l) 0;
    border-top: 1px solid var(--line-strong);
    display: grid;
    gap: 0.6rem;
    align-content: start;
  }
  .timeline li::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 0;
    width: 9px;
    height: 9px;
    background: var(--bg);
    border: 1.5px solid var(--accent);
    rotate: 45deg;
  }
  .timeline li:last-child::before { background: var(--accent); }
  .timeline h3 { font-size: var(--step-1); font-stretch: 105%; letter-spacing: -0.01em; line-height: 1.2; }
  .timeline p { color: var(--muted); font-size: 0.95rem; }

  .pillars {
    display: grid;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    overflow: hidden;
    margin-top: var(--space-xl);
  }
  @media (min-width: 48rem) { .pillars { grid-template-columns: repeat(3, 1fr); } }
  .pillar {
    background: var(--bg);
    padding: var(--space-l) var(--space-m);
    display: grid;
    gap: 0.75rem;
    align-content: start;
    transition: background-color 0.3s;
  }
  .pillar:hover { background: var(--bg-2); }
  .pillar svg { width: 2rem; height: 2rem; color: var(--accent); }
  .pillar h3 { font-size: var(--step-1); font-stretch: 105%; letter-spacing: -0.01em; }
  .pillar p { color: var(--muted); font-size: 0.95rem; }

  /* ---------------- Réalisations ---------------- */
  .works {
    display: grid;
    gap: var(--space-m);
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr));
  }
  .work {
    container-type: inline-size;
    display: grid;
    gap: 0.9rem;
  }
  .work__media {
    position: relative;
    aspect-ratio: 4 / 5;
    border-radius: var(--radius-l);
    overflow: hidden;
    border: 1px solid var(--line);
    background:
      repeating-linear-gradient(135deg, rgb(243 239 230 / 0.035) 0 1px, transparent 1px 12px),
      var(--surface);
    display: grid;
    place-items: center;
  }
  .work__media img { width: 100%; height: 100%; object-fit: cover; transition: scale 0.8s var(--ease-out); }
  .work:hover .work__media img { scale: 1.04; }
  .work__placeholder { display: grid; justify-items: center; gap: 0.6rem; color: var(--faint); text-align: center; padding: 1rem; }
  .work__placeholder svg { width: 2.25rem; height: 2.25rem; }
  .work__media::after {
    content: "";
    position: absolute;
    inset: 0.75rem;
    border: 1px solid transparent;
    border-image: linear-gradient(var(--accent), var(--accent)) 1;
    mask:
      linear-gradient(#000, #000) top left / 14px 14px no-repeat,
      linear-gradient(#000, #000) top right / 14px 14px no-repeat,
      linear-gradient(#000, #000) bottom left / 14px 14px no-repeat,
      linear-gradient(#000, #000) bottom right / 14px 14px no-repeat;
    opacity: 0.7;
    pointer-events: none;
  }
  .work__meta { display: flex; justify-content: space-between; gap: 1rem; }
  .work h3 { font-size: var(--step-1); font-stretch: 105%; letter-spacing: -0.01em; }

  .note {
    margin-top: var(--space-l);
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
    color: var(--muted);
  }

  /* ---------------- Zone ---------------- */
  .zone { display: grid; gap: var(--space-xl); }
  @media (min-width: 60rem) { .zone { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); align-items: center; } }

  .map {
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    background:
      radial-gradient(circle at 50% 50%, rgb(247 169 40 / 0.08), transparent 60%),
      var(--bg-2);
    overflow: hidden;
  }
  .map svg { width: 100%; height: auto; }
  .map .ring { fill: none; stroke: var(--line-strong); stroke-dasharray: 3 6; }
  .map .ring--main { stroke: var(--accent); stroke-opacity: 0.55; stroke-dasharray: 2 5; }
  .map .sweep { fill: url(#sweep); transform-origin: 0 0; animation: sweep 7s linear infinite; }
  @keyframes sweep { to { rotate: 360deg; } }
  .map .town circle { fill: var(--text); transition: fill 0.2s, r 0.2s; }
  .map .town text {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    fill: var(--muted);
    transition: fill 0.2s;
  }
  .map .town:hover circle, .map .town.is-hi circle { fill: var(--accent); r: 5; }
  .map .town:hover text, .map .town.is-hi text { fill: var(--text); }
  .map .home circle:first-child { fill: var(--accent); }
  .map .home .halo { fill: none; stroke: var(--accent); transform-box: fill-box; transform-origin: center; animation: halo 2.6s var(--ease-out) infinite; }
  @keyframes halo { from { scale: 1; opacity: 0.9; } to { scale: 5; opacity: 0; } }
  .map .home text { fill: var(--accent); font-weight: 700; font-size: 12px; }
  .map .axis { stroke: var(--line); }
  .map .axis-label { font-family: var(--font-mono); font-size: 10px; fill: var(--faint); letter-spacing: 0.1em; }
  .map__legend {
    position: absolute;
    left: 1rem;
    bottom: 1rem;
    display: flex;
    gap: 1rem;
  }

  .towns {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--space-m);
  }
  .towns li {
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    font-size: 0.88rem;
    color: var(--muted);
    cursor: default;
    transition: border-color 0.2s, color 0.2s, background-color 0.2s;
  }
  .towns li:hover, .towns li.is-hi { border-color: var(--accent); color: var(--text); background: var(--accent-soft); }
  .towns li.is-home { border-color: var(--accent); color: var(--accent); }

  /* ---------------- FAQ ---------------- */
  .faq { display: grid; border-top: 1px solid var(--line); }
  .faq details { border-bottom: 1px solid var(--line); }
  .faq summary {
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-m);
    padding-block: 1.35rem;
    cursor: pointer;
    font-family: var(--font-display);
    font-size: var(--step-1);
    font-weight: 700;
    font-stretch: 104%;
    letter-spacing: -0.01em;
    line-height: 1.25;
  }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary::after {
    content: "+";
    flex: none;
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--line-strong);
    border-radius: 2px;
    font-family: var(--font-mono);
    font-weight: 400;
    color: var(--accent);
    transition: rotate 0.3s var(--ease-out);
  }
  .faq details[open] summary::after { rotate: 45deg; }
  .faq summary:hover { color: var(--accent-pale); }
  .faq .faq__answer { padding: 0 0 1.5rem; color: var(--muted); max-width: 46rem; display: grid; gap: 0.75rem; }

  /* ---------------- Contact ---------------- */
  .contact {
    display: grid;
    gap: var(--space-xl);
  }
  @media (min-width: 60rem) { .contact { grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); } }

  .contact__phone {
    display: inline-block;
    font-family: var(--font-display);
    font-size: clamp(2rem, 1.2rem + 3.5vw, 3.6rem);
    font-weight: 800;
    font-stretch: 112%;
    letter-spacing: -0.02em;
    line-height: 1;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-variant-numeric: tabular-nums;
  }
  .contact__list { list-style: none; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--line); margin-top: var(--space-l); }
  .contact__list li { display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; padding-block: 0.95rem; border-bottom: 1px solid var(--line); }
  .contact__list a { border-bottom: 1px solid var(--line-strong); transition: border-color 0.2s; }
  .contact__list a:hover { border-color: var(--accent); }

  .form {
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    background: var(--bg-2);
    padding: clamp(1.25rem, 0.75rem + 2vw, 2.25rem);
    display: grid;
    gap: 1.1rem;
  }
  .form__row { display: grid; gap: 1.1rem; }
  @media (min-width: 36rem) { .form__row { grid-template-columns: 1fr 1fr; } }
  .field { display: grid; gap: 0.45rem; }
  .field label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
  .field label span { color: var(--accent); }
  .field input, .field select, .field textarea {
    width: 100%;
    padding: 0.85rem 0.95rem;
    background: var(--bg);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
  }
  .field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--accent) 50%), linear-gradient(135deg, var(--accent) 50%, transparent 50%); background-position: calc(100% - 20px) 55%, calc(100% - 15px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2.5rem; }
  .field textarea { min-height: 8.5rem; resize: vertical; }
  .field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
  .field input:user-invalid, .field textarea:user-invalid, .field select:user-invalid { border-color: #e5624a; }

  .chips { display: flex; flex-wrap: wrap; gap: 0.5rem; border: 0; padding: 0; }
  .chips legend { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.45rem; }
  .chips label {
    position: relative;
    padding: 0.55rem 0.9rem;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s, color 0.2s;
  }
  .chips input { position: absolute; opacity: 0; pointer-events: none; }
  .chips label:has(input:checked) { background: var(--accent); border-color: var(--accent); color: #14110b; font-weight: 600; }
  .chips label:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
  .chips label:hover { border-color: var(--accent); }

  .form__foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 0.25rem; }
  .form__foot p { font-size: 0.82rem; color: var(--faint); max-width: 22rem; }

  /* ---------------- CTA band ---------------- */
  .cta-band {
    position: relative;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-l);
    padding: clamp(2rem, 1rem + 4vw, 4rem);
    overflow: hidden;
    display: grid;
    gap: var(--space-m);
    background:
      radial-gradient(ellipse 60% 90% at 100% 0%, rgb(247 169 40 / 0.16), transparent 70%),
      var(--bg-2);
  }
  @media (min-width: 60rem) { .cta-band { grid-template-columns: 1fr auto; align-items: end; } }
  .cta-band h2 { font-size: var(--step-3); max-width: 36rem; }
  .cta-band .hero__actions { margin: 0; }

  /* ---------------- Footer ---------------- */
  .site-footer {
    border-top: 1px solid var(--line);
    padding-block: var(--space-xl) calc(var(--space-l) + 4.5rem);
    background: var(--bg-2);
  }
  @media (min-width: 56rem) { .site-footer { padding-bottom: var(--space-l); } }
  .footer__grid { display: grid; gap: var(--space-l); }
  @media (min-width: 56rem) { .footer__grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; } }
  .footer__grid img { width: 7rem; height: auto; margin-bottom: var(--space-s); }
  .footer__grid p { color: var(--muted); font-size: 0.92rem; }
  .footer__grid h2 { font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); margin-bottom: var(--space-s); }
  .footer__grid ul { list-style: none; padding: 0; display: grid; gap: 0.55rem; font-size: 0.95rem; }
  .footer__grid a { color: var(--muted); transition: color 0.2s; }
  .footer__grid a:hover { color: var(--accent); }
  .footer__bottom {
    margin-top: var(--space-xl);
    padding-top: var(--space-m);
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem 2rem;
  }
  .footer__bottom a:hover { color: var(--accent); }

  /* ---------------- Barre d'appel mobile ---------------- */
  .callbar {
    position: fixed;
    inset: auto 0.75rem max(0.75rem, env(safe-area-inset-bottom)) 0.75rem;
    z-index: 60;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.5rem;
    padding: 0.5rem;
    border: 1px solid var(--line-strong);
    border-radius: 12px;
    background: rgb(17 17 15 / 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 12px 40px rgb(0 0 0 / 0.5);
    translate: 0 160%;
    transition: translate 0.45s var(--ease-out);
  }
  .callbar[data-visible="true"] { translate: 0 0; }
  .callbar .btn { justify-content: center; min-height: 3rem; padding-right: 1.25rem; }
  .callbar .btn--primary { gap: 0.6rem; }
  .callbar .btn--primary svg { width: 1.05rem; height: 1.05rem; }
  @media (min-width: 56rem) { .callbar { display: none; } }

  /* ---------------- Pages intérieures ---------------- */
  .page-hero { padding-block: clamp(2rem, 1rem + 5vw, 5rem) var(--space-xl); position: relative; isolation: isolate; }
  .page-hero__grid { display: grid; gap: var(--space-l); }
  @media (min-width: 64rem) { .page-hero__grid { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); align-items: end; } }
  .page-hero h1 { font-size: clamp(2.2rem, 1.4rem + 3.4vw, 4.4rem); }

  .breadcrumb ol { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem 0.5rem; }
  .breadcrumb li + li::before { content: "/"; color: var(--faint); margin-right: 0.5rem; }
  .breadcrumb a { color: var(--muted); }
  .breadcrumb a:hover { color: var(--accent); }
  .breadcrumb [aria-current] { color: var(--accent); }

  .spec {
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    background: var(--bg-2);
    padding: var(--space-m);
    display: grid;
    gap: 0;
  }
  .spec div { display: flex; justify-content: space-between; gap: 1rem; padding-block: 0.7rem; border-bottom: 1px solid var(--line); }
  .spec div:last-child { border-bottom: 0; }
  .spec dd { font-family: var(--font-mono); font-size: 0.85rem; text-align: right; }

  .grid-cards {
    display: grid;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    overflow: hidden;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
  }
  .card {
    background: var(--bg);
    padding: var(--space-l) var(--space-m);
    display: grid;
    gap: 0.7rem;
    align-content: start;
    transition: background-color 0.3s;
  }
  .card:hover { background: var(--bg-2); }
  .card h3 { font-size: var(--step-1); font-stretch: 105%; letter-spacing: -0.01em; line-height: 1.2; }
  .card p { color: var(--muted); font-size: 0.97rem; }

  .steps { list-style: none; padding: 0; display: grid; gap: 0; counter-reset: s; }
  .steps li {
    counter-increment: s;
    display: grid;
    grid-template-columns: 4.5rem 1fr;
    gap: var(--space-m);
    padding-block: var(--space-m);
    border-top: 1px solid var(--line);
  }
  .steps li::before {
    content: counter(s, decimal-leading-zero);
    font-family: var(--font-mono);
    font-size: var(--step-2);
    font-weight: 500;
    color: var(--accent);
    line-height: 1;
  }
  .steps h3 { font-size: var(--step-1); font-stretch: 105%; letter-spacing: -0.01em; margin-bottom: 0.4rem; }
  .steps p { color: var(--muted); }

  .prose { display: grid; gap: var(--space-s); color: var(--muted); max-width: 44rem; }
  .prose h2 { color: var(--text); font-size: var(--step-2); margin-top: var(--space-l); }
  .prose h2:first-child { margin-top: 0; }
  .prose a { color: var(--accent); border-bottom: 1px solid currentColor; }

  .related { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }
  .related a {
    display: grid;
    gap: 0.5rem;
    padding: var(--space-m);
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    background: var(--bg-2);
    transition: border-color 0.25s, translate 0.35s var(--ease-out);
  }
  .related a:hover { border-color: var(--accent); translate: 0 -3px; }
  .related strong { font-family: var(--font-display); font-size: var(--step-2); font-stretch: 108%; letter-spacing: -0.02em; line-height: 1.1; }
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
@layer utilities {
  .visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0);
    white-space: nowrap; border: 0;
  }
  .accent { color: var(--accent); }
  .muted { color: var(--muted); }
  .mt-l { margin-top: var(--space-l); }
  .mt-xl { margin-top: var(--space-xl); }

  /* Apparition au scroll — n'est active que si le JS a chargé (html.js) */
  .js [data-reveal] {
    opacity: 0;
    translate: 0 24px;
    transition: opacity var(--dur) var(--ease-out), translate var(--dur) var(--ease-out);
    transition-delay: var(--delay, 0s);
  }
  .js [data-reveal].is-in { opacity: 1; translate: 0 0; }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
    .js [data-reveal] { opacity: 1; translate: none; }
  }
}

@layer components {
  .map .town--minor text { opacity: 0; transition: opacity 0.2s; }
  .map .town--minor:hover text, .map .town--minor.is-hi text { opacity: 1; }
  .map .town { cursor: default; }
}

@layer pages {
  .hero h1 { font-size: clamp(2.2rem, 1.2rem + 3.3vw, 4.25rem); font-stretch: 100%; }
  @media (min-width: 64rem) { .hero__grid { grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); } }
  .strata__svg { max-height: calc(100svh - var(--header-h) - 9rem); }
  .brand img { width: 5.2rem; }
}

@layer pages {
  /* Entrée du haut de page : CSS pur, indépendant du JS (pas de retard sur le LCP) */
  @keyframes rise { from { opacity: 0; translate: 0 18px; } }
  .hero__content > *, .page-hero .spec, .hero__data > div {
    animation: rise 0.8s var(--ease-out) both;
  }
  .hero__content > :nth-child(2) { animation-delay: 0.06s; }
  .hero__content > :nth-child(3) { animation-delay: 0.12s; }
  .hero__content > :nth-child(4), .page-hero .spec { animation-delay: 0.18s; }
  .hero__data > div { animation-delay: 0.3s; }
  .hero__visual { animation: rise 1.2s var(--ease-out) 0.1s both; }
}

@layer pages {
  html { overflow-x: clip; }
  .hero, .page-hero { overflow-x: clip; }
  .zone > *, .contact > *, .split > *, .strata > * { min-width: 0; }
  .section-head h2 { overflow-wrap: break-word; hyphens: auto; }
}

@layer pages {
  .contact__list li { grid-template-columns: 5.5rem minmax(0, 1fr); }
  .contact__list li > span:last-child { overflow-wrap: anywhere; }
}

@layer pages {
  .prose h3 {
    color: var(--text);
    font-size: var(--step-1);
    font-stretch: 105%;
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin-top: var(--space-m);
    padding-top: var(--space-m);
    border-top: 1px solid var(--line);
  }
  .prose h3:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
}

@layer pages {
  .prose h3 + p, .prose h3 + ul { margin-top: -0.25rem; }
  .prose ul { display: grid; gap: 0.5rem; padding-left: 1.2rem; }
  .prose li::marker { color: var(--accent); }
  .hero__data dd { overflow-wrap: anywhere; }
}