/* ==========================================================================
   AltaSoft — feuille de styles unique
   Palette sombre dérivée des couleurs du Jeu du Moulin :
   émeraude (points actifs) + sable (plateau) sur un noir légèrement vert.
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Polices, hébergées sur le site (aucun appel à un service tiers)
   Polices variables, sous-ensemble latin : couvre tout le français.
   Licence SIL Open Font License 1.1 — voir assets/fonts/README.md.
   -------------------------------------------------------------------------- */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("../fonts/inter-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
  src: url("../fonts/space-grotesk-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* --------------------------------------------------------------------------
   1. Jetons de design
   -------------------------------------------------------------------------- */
:root {
  /* Fonds */
  --bg: #090d0c;
  --bg-soft: #0d1211;
  --surface: #121917;
  --surface-2: #18211e;
  --surface-3: #1e2825;

  /* Traits */
  --line: #202b28;
  --line-strong: #2c3936;

  /* Texte */
  --text: #eef3f1;
  --text-2: #adbbb6;
  --text-3: #75847f;

  /* Accents */
  --accent: #3ddc97;
  --accent-deep: #1c9a68;
  --accent-soft: rgba(61, 220, 151, 0.12);
  --accent-line: rgba(61, 220, 151, 0.28);
  --sand: #e6d4b3;
  --sand-soft: rgba(230, 212, 179, 0.12);

  /* Typographie */
  --font-display: "Space Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Rythme */
  --shell: 1180px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-y: clamp(4.5rem, 10vw, 8.5rem);

  /* Formes */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;

  /* Ombres */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 18px 40px -22px rgba(0, 0, 0, 0.9);
  --shadow-lg: 0 44px 90px -40px rgba(0, 0, 0, 1);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* --------------------------------------------------------------------------
   2. Réinitialisation
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

button, input, textarea { font: inherit; color: inherit; }

ul, ol { list-style: none; padding: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--accent); color: #04120c; }

/* --------------------------------------------------------------------------
   3. Typographie
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.032em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.4rem, 6.2vw, 4.15rem); }
h2 { font-size: clamp(1.85rem, 4.2vw, 2.9rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.35rem); letter-spacing: -0.02em; }

p { text-wrap: pretty; }

.lede {
  font-size: clamp(1.05rem, 1.9vw, 1.2rem);
  color: var(--text-2);
  line-height: 1.7;
  max-width: 56ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent-line);
}

.section-head { max-width: 62ch; margin-bottom: clamp(2.5rem, 5vw, 3.75rem); }
.section-head .eyebrow { margin-bottom: 1.1rem; }
.section-head h2 + p { margin-top: 1.15rem; }

/* --------------------------------------------------------------------------
   4. Structure
   -------------------------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); position: relative; }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.section--soft { background: var(--bg-soft); }

.rule { height: 1px; background: var(--line); border: 0; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 999;
  background: var(--accent);
  color: #04120c;
  padding: 0.7rem 1.15rem;
  border-radius: var(--r-sm);
  font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* --------------------------------------------------------------------------
   5. En-tête et navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.site-header.is-stuck {
  background: rgba(9, 13, 12, 0.78);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom-color: var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.68rem;
  font-family: var(--font-display);
  font-size: 1.075rem;
  font-weight: 600;
  letter-spacing: -0.028em;
  flex-shrink: 0;
}

.brand__mark { width: 26px; height: 26px; flex-shrink: 0; }
.brand__name { color: var(--text); }

.nav { display: flex; align-items: center; gap: 0.35rem; }

.nav__link {
  position: relative;
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--r-sm);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav__link:hover { color: var(--text); background: var(--surface-2); }
.nav__link[aria-current="page"] { color: var(--text); }

.header__actions { display: flex; align-items: center; gap: 0.75rem; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  align-items: center;
  justify-content: center;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle__bars { position: relative; width: 17px; height: 11px; }
.nav-toggle__bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.28s var(--ease), opacity 0.2s linear;
}
.nav-toggle__bars span:nth-child(1) { top: 0; }
.nav-toggle__bars span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle__bars span:nth-child(3) { bottom: 0; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { bottom: 50%; transform: translateY(50%) rotate(-45deg); }

/* --------------------------------------------------------------------------
   6. Boutons et pastilles
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.8rem 1.4rem;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: -0.012em;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease),
              border-color 0.2s var(--ease), color 0.2s var(--ease), box-shadow 0.3s var(--ease);
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--accent);
  color: #04140d;
  box-shadow: 0 10px 30px -14px rgba(61, 220, 151, 0.85);
}
.btn--primary:hover { background: #4fe8a6; box-shadow: 0 16px 38px -14px rgba(61, 220, 151, 0.95); }

.btn--ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--accent-line); background: var(--accent-soft); color: var(--accent); }

.btn--sm { padding: 0.6rem 1.1rem; font-size: 0.85rem; }

.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-row { display: flex; flex-wrap: wrap; gap: 0.85rem; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.36rem 0.85rem;
  font-size: 0.775rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--text-2);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.pill--accent { color: var(--accent); background: var(--accent-soft); border-color: var(--accent-line); }

.pill__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.pill--accent .pill__dot { box-shadow: 0 0 0 4px var(--accent-soft); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
}
.link-arrow svg { transition: transform 0.25s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* --------------------------------------------------------------------------
   7. Héros
   -------------------------------------------------------------------------- */
.hero { position: relative; padding-block: clamp(3.5rem, 8vw, 6.5rem) clamp(4rem, 9vw, 7rem); overflow: hidden; }

.hero::before {
  content: "";
  position: absolute;
  top: -30%;
  left: 50%;
  width: min(1100px, 130vw);
  aspect-ratio: 1;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(61, 220, 151, 0.11) 0%, rgba(61, 220, 151, 0.04) 38%, transparent 66%);
  pointer-events: none;
  z-index: 0;
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2.5rem, 6vw, 4.5rem);
  align-items: center;
}

.hero__copy > * + * { margin-top: 1.5rem; }
.hero__copy .lede { margin-top: 1.6rem; }
.hero h1 .accent {
  background: linear-gradient(100deg, var(--accent) 0%, var(--sand) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 2.75rem;
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--text-3);
}
.hero__meta strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.02em;
}

.hero__visual { display: flex; flex-direction: column; align-items: center; }

/* --------------------------------------------------------------------------
   8. Maquette téléphone + plateau (reproduction de l'écran de jeu)
   -------------------------------------------------------------------------- */
.device {
  position: relative;
  width: min(330px, 100%);
  padding: 11px;
  background: linear-gradient(160deg, #2a3532 0%, #131a18 46%, #232d2a 100%);
  border-radius: 46px;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.055) inset;
}

.device::after {
  content: "";
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 82px;
  height: 22px;
  background: #0a0e0d;
  border-radius: 999px;
  z-index: 3;
}

.device__screen {
  position: relative;
  border-radius: 36px;
  overflow: hidden;
  background: #f8f4ec;
  color: #14201b;
  font-family: var(--font-body);
  padding: 2.35rem 0.9rem 1.1rem;
  display: grid;
  gap: 0.7rem;
}

/* Barre de titre du jeu */
.gm-top { display: flex; align-items: center; gap: 0.7rem; padding: 0.15rem 0.25rem 0.1rem; }
.gm-top__back { width: 20px; height: 20px; flex-shrink: 0; color: #1d2f27; }
.gm-top__titles { flex: 1; min-width: 0; }
.gm-top__title { font-family: var(--font-display); font-size: 1.02rem; font-weight: 600; letter-spacing: -0.025em; line-height: 1.2; color: #14201b; }
.gm-top__sub { font-size: 0.66rem; color: #6d7d76; line-height: 1.4; }
.gm-top__btn {
  width: 34px; height: 34px; flex-shrink: 0;
  display: grid; place-items: center;
  background: #d9ece1; color: #1c8a5e;
  border-radius: 50%;
}
.gm-top__btn svg { width: 16px; height: 16px; }

/* Carte d'état de la partie */
.gm-card {
  background: #fdfaf4;
  border: 1px solid #ece4d6;
  border-radius: 16px;
  padding: 0.6rem;
  display: grid;
  gap: 0.55rem;
}

.gm-status { display: flex; align-items: center; gap: 0.65rem; background: #eeece6; border-radius: 12px; padding: 0.6rem 0.7rem; }
.gm-status__icon { width: 34px; height: 34px; flex-shrink: 0; display: grid; place-items: center; background: #d7e7dd; color: #26775a; border-radius: 50%; }
.gm-status__icon svg { width: 17px; height: 17px; }
.gm-status__label { font-size: 0.58rem; font-weight: 600; letter-spacing: 0.11em; text-transform: uppercase; color: #7d8a83; }
.gm-status__title { font-family: var(--font-display); font-size: 0.86rem; font-weight: 600; letter-spacing: -0.02em; color: #16241e; }
.gm-status__hint { font-size: 0.65rem; color: #7d8a83; line-height: 1.35; }

.gm-players { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }

.gm-player { border: 1px solid #e6ded0; border-radius: 12px; padding: 0.55rem 0.6rem; background: #fffdf9; }
.gm-player--active { border-color: #2e9c6d; background: #eaf6f0; }
.gm-player__head { display: flex; align-items: center; gap: 0.4rem; margin-bottom: 0.3rem; }
.gm-player__disc { width: 17px; height: 17px; border-radius: 50%; flex-shrink: 0; }
.gm-player__disc--w { background: linear-gradient(150deg, #ffffff, #eae2d3); border: 1px solid #cfc6b5; }
.gm-player__disc--b { background: linear-gradient(150deg, #3d423f, #141816); border: 1px solid #0c0f0e; }
.gm-player__name { font-size: 0.76rem; font-weight: 600; color: #16241e; letter-spacing: -0.01em; }
.gm-player__tag { margin-left: auto; font-size: 0.55rem; font-weight: 600; letter-spacing: 0.05em; color: #5d7a6d; background: #dbeae2; padding: 0.08rem 0.34rem; border-radius: 999px; }
.gm-player__stat { font-size: 0.65rem; color: #78857e; line-height: 1.5; }

/* Plateau */
.gm-board { background: linear-gradient(150deg, #efdcb8 0%, #e5cda3 55%, #edd9b4 100%); border-radius: 16px; padding: 0.5rem; }
.gm-board svg { width: 100%; height: auto; }

.board-line { stroke: #2f5f4c; stroke-width: 3.4; stroke-linecap: round; fill: none; }
.board-node { fill: #244f3f; }
.board-node-ring { fill: none; stroke: #3ddc97; stroke-width: 2.6; opacity: 0.55; }
.piece-w { fill: url(#pieceWhite); stroke: #c7bda9; stroke-width: 1.1; }
.piece-b { fill: url(#pieceBlack); stroke: #0b0e0d; stroke-width: 1.1; }
.piece-shadow { fill: rgba(60, 40, 15, 0.22); }
.mill-line { stroke: #22b478; stroke-width: 7; stroke-linecap: round; opacity: 0.85; }
.move-arrow { stroke: #1d8a5f; stroke-width: 5.5; stroke-linecap: round; stroke-dasharray: 0 14; fill: none; }
.move-head { fill: #1d8a5f; }

/* Légende sous la maquette */
.device-caption {
  margin-top: 1.35rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-3);
  max-width: 34ch;
}

/* --------------------------------------------------------------------------
   9. Grilles de cartes
   -------------------------------------------------------------------------- */
.grid { display: grid; gap: 1.15rem; }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(1.4rem, 2.6vw, 1.9rem);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}

.card:hover { border-color: var(--line-strong); background: var(--surface-2); }

.card__icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: var(--r-md);
  color: var(--accent);
  margin-bottom: 1.35rem;
}
.card__icon svg { width: 20px; height: 20px; }

.card h3 { margin-bottom: 0.6rem; }
.card p { color: var(--text-2); font-size: 0.925rem; }

/* Liste de savoir-faire */
.capability-list { border-top: 1px solid var(--line); }
.capability {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 15rem) minmax(0, 1fr);
  gap: 1rem 2rem;
  align-items: start;
  padding-block: 1.6rem;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease);
}
.capability:hover { background: var(--surface); }
.capability__index { font-family: var(--font-display); font-size: 0.82rem; color: var(--accent); padding-top: 0.28rem; letter-spacing: 0.08em; }
.capability__title { font-family: var(--font-display); font-size: 1.12rem; font-weight: 500; letter-spacing: -0.022em; }
.capability__desc { color: var(--text-2); font-size: 0.93rem; }

/* --------------------------------------------------------------------------
   10. Carte projet mise en avant
   -------------------------------------------------------------------------- */
.showcase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  background: linear-gradient(150deg, var(--surface) 0%, var(--bg-soft) 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: clamp(1.75rem, 4.5vw, 3.5rem);
  position: relative;
  overflow: hidden;
}

.showcase::before {
  content: "";
  position: absolute;
  inset: auto -20% -60% auto;
  width: 520px;
  aspect-ratio: 1;
  background: radial-gradient(circle, var(--sand-soft) 0%, transparent 68%);
  pointer-events: none;
}

.showcase__body { position: relative; z-index: 1; }
.showcase__body > * + * { margin-top: 1.25rem; }
.showcase__title { font-size: clamp(1.75rem, 3.4vw, 2.35rem); }
.showcase__visual { position: relative; z-index: 1; display: flex; justify-content: center; }

.tag-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.spec-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem 1.5rem; }
.spec-list dt { font-size: 0.72rem; letter-spacing: 0.11em; text-transform: uppercase; color: var(--text-3); margin-bottom: 0.2rem; }
.spec-list dd { margin: 0; font-family: var(--font-display); font-size: 0.98rem; font-weight: 500; letter-spacing: -0.018em; }

/* Emplacement « projet à venir » */
.upcoming {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 0.85rem;
  min-height: 190px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-lg);
  padding: clamp(1.4rem, 3vw, 2.25rem);
  background: transparent;
}
.upcoming h3 { color: var(--text-2); }
.upcoming p { color: var(--text-3); font-size: 0.9rem; max-width: 52ch; }

/* --------------------------------------------------------------------------
   11. Règles du jeu (page dédiée)
   -------------------------------------------------------------------------- */
.phases { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.15rem; }

.phase {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent-line);
  border-radius: var(--r-md);
  padding: 1.6rem 1.5rem;
}
.phase__step { font-family: var(--font-display); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.phase h3 { margin: 0.75rem 0 0.6rem; }
.phase p { color: var(--text-2); font-size: 0.92rem; }

.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.25rem; }
.gallery figure {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.5rem 1.25rem;
  display: grid;
  gap: 1.1rem;
  justify-items: center;
  align-content: start;
}
.gallery figcaption { font-size: 0.85rem; color: var(--text-3); text-align: center; }
.gallery .gm-board { width: 100%; max-width: 250px; }

.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.4rem 0;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  width: 11px; height: 11px;
  border-right: 1.5px solid var(--accent);
  border-bottom: 1.5px solid var(--accent);
  transform: rotate(45deg) translate(-2px, -2px);
  flex-shrink: 0;
  transition: transform 0.25s var(--ease);
}
.faq details[open] summary::after { transform: rotate(-135deg) translate(-3px, -3px); }
.faq details p { color: var(--text-2); font-size: 0.94rem; padding-bottom: 1.4rem; max-width: 72ch; }

/* --------------------------------------------------------------------------
   12. Contact
   -------------------------------------------------------------------------- */
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background:
    radial-gradient(120% 130% at 88% 10%, var(--accent-soft) 0%, transparent 58%),
    var(--surface);
  padding: clamp(2rem, 5vw, 3.5rem);
}
.contact__body > * + * { margin-top: 1.25rem; }

.contact__channels { display: grid; gap: 0.9rem; }
.contact__channel {
  display: flex;
  align-items: center;
  gap: 0.95rem;
  padding: 1.05rem 1.25rem;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.contact__channel:hover { border-color: var(--accent-line); transform: translateX(4px); }
.contact__channel > svg { width: 19px; height: 19px; color: var(--accent); flex-shrink: 0; }
.contact__channel span { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); display: block; }
.contact__channel strong { font-family: var(--font-display); font-weight: 500; font-size: 0.98rem; letter-spacing: -0.018em; }

/* --------------------------------------------------------------------------
   13. Pied de page
   -------------------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-soft); padding-block: clamp(3rem, 6vw, 4.5rem) 2rem; }

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: 2.5rem;
  padding-bottom: 2.75rem;
}
.footer__brand p { color: var(--text-3); font-size: 0.88rem; max-width: 34ch; margin-top: 1rem; }
.footer__col h4 { font-family: var(--font-display); font-size: 0.74rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--text-3); font-weight: 500; margin-bottom: 1rem; }
.footer__col li + li { margin-top: 0.6rem; }
.footer__col a { font-size: 0.9rem; color: var(--text-2); transition: color 0.2s var(--ease); }
.footer__col a:hover { color: var(--accent); }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--text-3);
}

/* --------------------------------------------------------------------------
   14. Pages de contenu (mentions légales, confidentialité)
   -------------------------------------------------------------------------- */
.prose { max-width: 74ch; }
.prose > * + * { margin-top: 1.15rem; }
.prose h2 { font-size: clamp(1.4rem, 2.6vw, 1.75rem); margin-top: 3rem; }
.prose h3 { margin-top: 2rem; }
.prose p, .prose li { color: var(--text-2); font-size: 0.96rem; }
.prose ul { list-style: disc; padding-left: 1.3rem; display: grid; gap: 0.5rem; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.prose .todo {
  background: var(--accent-soft);
  border: 1px dashed var(--accent-line);
  border-radius: var(--r-sm);
  padding: 0.1rem 0.45rem;
  color: var(--accent);
  font-size: 0.85em;
  font-weight: 500;
  white-space: nowrap;
}

.page-hero { padding-block: clamp(3rem, 7vw, 5rem) clamp(2rem, 4vw, 3rem); border-bottom: 1px solid var(--line); }
.page-hero .eyebrow { margin-bottom: 1rem; }
.page-hero .lede { margin-top: 1.25rem; }

.breadcrumb { display: flex; align-items: center; gap: 0.5rem; font-size: 0.83rem; color: var(--text-3); margin-bottom: 1.5rem; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--line-strong); }

/* --------------------------------------------------------------------------
   15. Animations d'apparition
   Le masquage initial est conditionné à la classe « js » posée par un script
   en ligne : sans JavaScript, le contenu reste visible et lisible.
   -------------------------------------------------------------------------- */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   16. Adaptatif
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  /* Le titre reste en premier : la maquette illustre, elle n'introduit pas. */
  .hero__grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero__visual { margin-top: 0.5rem; }
  .showcase, .contact { grid-template-columns: 1fr; }
  .showcase__visual { order: -1; }
  .grid--3, .phases { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .capability { grid-template-columns: 3rem minmax(0, 1fr); }
  .capability__desc { grid-column: 2; }
}

@media (max-width: 720px) {
  .nav {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: var(--gutter);
    left: var(--gutter);
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    padding: 0.6rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), visibility 0.22s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav__link { padding: 0.75rem 0.9rem; }
  .nav-toggle { display: inline-flex; }
  .header__actions .btn { display: none; }
  .grid--3, .grid--2, .phases { grid-template-columns: 1fr; }
  .spec-list { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero__meta { gap: 1.25rem 2rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}