/* ===== Couleurs du site (charte "wagon de marchandises") ===== */
:root {
  --bg: #17110f;          /* fond de page */
  --card: #241a16;        /* cartes et sections */
  --border: #3a2a23;      /* bordures fines */
  --rust: #7d2a1c;        /* rouille wagon */
  --rust-dark: #5e1f14;   /* planches plus foncées */
  --rust-bright: #c0462a; /* liens, titres de sections, icônes */
  --cream: #f3ead8;       /* titres et texte principal */
  --text-2: #b9a998;      /* texte secondaire */
  --brass: #e8a317;       /* petits détails, numéros d'étapes */

  --font-stencil: "Big Shoulders Stencil Display", "Oswald", sans-serif;
  --font-label: "Oswald", sans-serif;
  --font-text: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--cream);
  font-family: var(--font-text);
  line-height: 1.6;
}

a { color: var(--rust-bright); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; border-radius: 10px; }

.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* ===== Logo rond (fichier logo-final/icone-transparent-pour-fond-sombre.svg posé sur un disque rouille) ===== */
.logo-mark {
  flex-shrink: 0; display: block;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--rust);
}
.logo-mark img { width: 100%; height: 100%; border-radius: 0; }

/* ===== Header ===== */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(23, 17, 15, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 12px; color: var(--cream); }
.logo:hover { text-decoration: none; }
.logo-text { font-family: var(--font-stencil); font-weight: 900; font-size: 1.45rem; letter-spacing: 1px; }
.nav { display: flex; gap: 22px; align-items: center; }
.nav a { color: var(--text-2); font-family: var(--font-label); font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; font-size: 0.85rem; }
.nav a:hover { color: var(--cream); text-decoration: none; }

/* ===== Boutons ===== */
.btn {
  display: inline-block;
  font-family: var(--font-label); font-weight: 700; text-transform: uppercase; letter-spacing: 2px;
  border-radius: 6px;
  padding: 12px 28px;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
/* Bouton principal : fond crème, texte rouille */
.btn-primary { background: var(--cream); color: var(--rust); border: 2px solid var(--cream); }
.btn-primary:hover { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35); }
/* Boutons secondaires : contour crème, fond transparent */
.btn-secondary { background: transparent; color: var(--cream); border: 2px solid var(--cream); }
.btn-secondary:hover { background: rgba(243, 234, 216, 0.08); }
.btn-big { font-size: 1.15rem; padding: 16px 48px; }

/* ===== Accueil : fond rouille + planches verticales de wagon ===== */
.hero {
  padding: 80px 0 72px;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.05), rgba(0,0,0,0.25)),
    repeating-linear-gradient(90deg, var(--rust) 0 62px, var(--rust-dark) 62px 64px);
  border-bottom: 4px solid var(--rust-dark);
}
.hero-inner { max-width: 920px; display: flex; flex-direction: column; align-items: center; }
.hero-title { width: 100%; max-width: 620px; margin-bottom: 26px; }
.logo-long { width: 100%; height: auto; border-radius: 0; }
.tagline { font-size: 1.25rem; font-weight: 600; color: var(--cream); margin-bottom: 10px; }
.lead { color: var(--cream); opacity: 0.85; font-size: 1.05rem; margin-bottom: 32px; max-width: 730px; }
.version { margin-top: 20px; font-weight: 600; color: var(--cream); }
.version span { display: block; font-weight: 400; color: var(--brass); font-size: 0.85rem; }
.small-note { color: var(--cream); opacity: 0.75; font-size: 0.85rem; margin-top: 16px; }

/* ===== Logo carré animé ===== */
.mrr-wrap { position: relative; width: 130px; height: 130px; margin-bottom: 32px; }
.mrr-anim {
  width: 100%; height: 100%; display: block; overflow: visible;
  filter: drop-shadow(0 0 14px rgba(0, 0, 0, 0.55)) drop-shadow(0 6px 10px rgba(0, 0, 0, 0.65));
  animation: mrr-appear 1s ease-out backwards, mrr-sway 6s ease-in-out 1s infinite;
}

/* Les anneaux se dessinent */
.mrr-ring { stroke-dasharray: 100; stroke-dashoffset: 100; transform-origin: 512px 512px; transform: rotate(-90deg); }
.mrr-ring-1 { animation: mrr-draw 1s ease-out 0.5s forwards; }
.mrr-ring-2 { animation: mrr-draw 1s ease-out 0.75s forwards; }
/* Le cadre se dessine, puis la barre laiton s'allonge */
.cfr-frame { stroke-dasharray: 100; stroke-dashoffset: 100; animation: mrr-draw 1.1s ease-out 0.4s forwards; }
.cfr-bar { transform-box: fill-box; transform-origin: left center; transform: scaleX(0); animation: cfr-bar 0.6s ease-out 1.7s forwards; }
@keyframes cfr-bar { to { transform: scaleX(1); } }
/* Les lettres apparaissent */
.mrr-letters { opacity: 0; animation: mrr-letters 0.6s ease-out 1.3s forwards; }
/* Reflet de lumière */
.mrr-shine { transform-origin: 512px 512px; transform: rotate(20deg); animation: mrr-shine 5s ease-in-out 2s infinite; }

@keyframes mrr-appear {
  from { opacity: 0; transform: scale(0.94); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes mrr-draw { to { stroke-dashoffset: 0; } }
@keyframes mrr-letters {
  from { opacity: 0; }
  to   { opacity: 1; }
}
/* Le logo, à plat, se soulève lentement de la page : il grossit un peu et son ombre s'éloigne */
@keyframes mrr-sway {
  0%, 100% { scale: 1;    filter: drop-shadow(0 0 14px rgba(0, 0, 0, 0.55)) drop-shadow(0 6px 10px rgba(0, 0, 0, 0.65)); }
  50%      { scale: 1.05; filter: drop-shadow(0 0 20px rgba(0, 0, 0, 0.5)) drop-shadow(0 24px 28px rgba(0, 0, 0, 0.55)); }
}
@keyframes mrr-shine {
  0%, 60% { transform: rotate(20deg) translateX(0); }
  100%    { transform: rotate(20deg) translateX(1900px); }
}

/* Visiteurs qui ont désactivé les animations dans Windows : logo fixe */
@media (prefers-reduced-motion: reduce) {
  .mrr-anim, .mrr-ring, .mrr-letters, .mrr-shine, .cfr-frame, .cfr-bar { animation: none !important; }
  .cfr-frame { stroke-dashoffset: 0; }
  .cfr-bar { transform: none; }
  .mrr-ring { stroke-dashoffset: 0; }
  .mrr-letters { opacity: 1; }
  .mrr-shine { display: none; }
}

/* ===== Les 2 versions à télécharger ===== */
.downloads { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; width: 100%; max-width: 900px; margin: 0 auto; }
.dl-card {
  background: rgba(23, 17, 15, 0.82); border: 1px solid var(--border); border-top: 3px solid var(--brass);
  border-radius: 10px; padding: 22px 20px 24px; text-align: center;
  display: flex; flex-direction: column; align-items: center;
}
.dl-name { font-family: var(--font-label); font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; font-size: 1.2rem; color: var(--cream); margin-bottom: 6px; }
.dl-card p { color: var(--text-2); font-size: 0.92rem; margin-bottom: 18px; flex-grow: 1; }
.dl-card .btn { width: 100%; padding: 13px 16px; letter-spacing: 1.5px; white-space: nowrap; }
.cta .downloads { margin-bottom: 0; max-width: 900px; }
.cta .free-box { max-width: 900px; }
.cta .dl-card .dl-name { font-family: var(--font-label); font-weight: 700; font-size: 1.2rem; letter-spacing: 1.5px; margin-bottom: 6px; }
.dl-badge { font-family: var(--font-label); font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; font-size: 0.72rem; color: var(--bg); background: var(--brass); border-radius: 4px; padding: 2px 10px; margin-bottom: 10px; }
.dl-badge-opt { color: var(--brass); background: transparent; border: 1px solid var(--brass); }
.tag { display: inline-block; font-family: var(--font-label); text-transform: uppercase; letter-spacing: 1.2px; font-size: 0.78rem; color: var(--brass); border: 1px solid var(--brass); border-radius: 4px; padding: 1px 8px; margin-right: 8px; }

/* ===== Sections ===== */
.section { padding: 76px 0; }
.section h2 {
  font-family: var(--font-label); font-weight: 700; text-transform: uppercase; letter-spacing: 2px;
  font-size: clamp(1.5rem, 4vw, 2.1rem); line-height: 1.2; margin-bottom: 12px;
  color: var(--rust-bright);
}
.section-lead { color: var(--text-2); margin-bottom: 32px; max-width: 660px; }
.section-alt { background: var(--card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-alt .card, .section-alt .panel, .section-alt .info-box, .section-alt .img-placeholder { background: var(--bg); }
.note { color: var(--text-2); font-size: 0.9rem; margin-top: 18px; }

/* ===== Fonctions ===== */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 24px; }
.card-icon {
  display: grid; place-items: center;
  width: 38px; height: 38px; border-radius: 50%;
  border: 2px solid var(--rust-bright); color: var(--rust-bright);
  font-family: var(--font-label); font-weight: 700; margin-bottom: 14px;
}
.card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--cream); }
.card p { color: var(--text-2); font-size: 0.95rem; }

/* ===== "And much more" ===== */
.more { margin-top: 28px; background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 24px 28px; }
.more-title { font-family: var(--font-label); font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--brass); font-size: 1rem; margin-bottom: 16px; }
.more-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 32px; }
.more-list li { color: var(--text-2); font-size: 0.93rem; padding-left: 16px; border-left: 2px solid var(--border); }
.more-list strong { display: block; color: var(--cream); margin-bottom: 2px; }
.panel-lead { color: var(--cream); margin-bottom: 14px; }
.info-box + .info-box { margin-top: 12px; }
.btn-mail { text-transform: none; letter-spacing: 0.5px; }
.panel .info-box { background: var(--card); }

/* ===== Captures ===== */
.gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.img-placeholder {
  display: grid; place-items: center;
  aspect-ratio: 16 / 9;
  background: var(--card);
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--text-2); font-size: 0.9rem; text-align: center; padding: 16px;
}

/* ===== Installation ===== */
#install .section-lead { margin-bottom: 12px; }
.files { list-style: none; display: grid; gap: 10px; margin-bottom: 28px; }
.files li { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 10px; color: var(--text-2); }
.files strong { color: var(--cream); }
.files .dl-badge { margin-bottom: 0; min-width: 84px; text-align: center; }
.steps { list-style: none; counter-reset: step; display: grid; gap: 12px; }
.steps li {
  counter-increment: step; position: relative;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px 20px 16px 64px;
}
.steps li::before {
  content: counter(step);
  position: absolute; left: 18px; top: 14px;
  display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%;
  border: 2px solid var(--brass); color: var(--brass);
  font-family: var(--font-label); font-weight: 700; font-size: 0.95rem;
}
code { background: rgba(192, 70, 42, 0.12); color: #e9a08c; padding: 1px 6px; border-radius: 4px; font-size: 0.88em; word-break: break-word; }

.info-box { background: var(--card); border: 1px solid var(--border); border-left: 3px solid var(--brass); border-radius: 10px; padding: 16px 20px; margin-top: 20px; }
.info-box strong { color: var(--cream); }
.info-box p { color: var(--text-2); margin-top: 4px; }

/* ===== Prérequis + limites ===== */
.two-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.panel { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 28px; }
.panel h2 { font-size: 1.4rem; margin-bottom: 16px; }
.checklist, .warnlist { list-style: none; display: grid; gap: 10px; }
.checklist li, .warnlist li { position: relative; padding-left: 28px; color: var(--text-2); }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--rust-bright); font-weight: 800; }
.warnlist li::before { content: "!"; position: absolute; left: 4px; color: var(--brass); font-weight: 800; }

/* ===== News ===== */
.news-list { display: grid; gap: 16px; margin-top: 24px; }
.news-item { background: var(--card); border: 1px solid var(--border); border-left: 3px solid var(--rust-bright); border-radius: 10px; padding: 20px 24px; }
.news-item time { color: var(--brass); font-size: 0.85rem; font-weight: 600; }
.news-item h3 { font-size: 1.15rem; margin: 4px 0 6px; }
.news-item p { color: var(--text-2); }

/* ===== Support + histoire ===== */
.narrow > p { color: var(--text-2); margin-bottom: 14px; }
.narrow .btn { margin-top: 22px; }
.story p { color: var(--text-2); margin-bottom: 14px; font-size: 1.05rem; }
.story .signature { color: var(--brass); font-weight: 600; font-style: italic; }

/* ===== Call to action ===== */
.cta {
  text-align: center;
  background: repeating-linear-gradient(90deg, var(--rust) 0 62px, var(--rust-dark) 62px 64px);
  border-top: 4px solid var(--rust-dark); border-bottom: 4px solid var(--rust-dark);
}
.cta h2 { font-family: "Russo One", sans-serif; font-weight: 400; text-transform: uppercase; color: var(--cream); font-size: clamp(2.2rem, 7vw, 3.4rem); letter-spacing: 1px; margin-bottom: 8px; transform: skewX(-12deg); }
.cta-inner > p { color: var(--cream); opacity: 0.85; margin-bottom: 28px; }
.free-box { max-width: 620px; margin: 36px auto 0; background: rgba(23, 17, 15, 0.82); border: 1px solid var(--border); border-top: 3px solid var(--brass); border-radius: 10px; padding: 20px 24px; }
.free-box strong { color: var(--cream); font-family: var(--font-label); text-transform: uppercase; letter-spacing: 1.5px; }
.free-box p { color: var(--text-2); margin-top: 6px; }

/* ===== Footer ===== */
.footer { background: var(--card); color: var(--text-2); font-size: 0.92rem; }
.footer-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 56px; padding-top: 56px; padding-bottom: 36px; }
.footer-logo { width: 220px; max-width: 100%; height: auto; border-radius: 0; margin-bottom: 14px; }
.footer-brand > p { color: var(--cream); font-weight: 600; margin-bottom: 18px; }
.footer-brand > .footer-team { color: var(--text-2); font-weight: 400; font-size: 0.85rem; margin: -4px 0 14px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer-nav a { color: var(--text-2); font-family: var(--font-label); font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; font-size: 0.8rem; }
.footer-nav a:hover { color: var(--cream); text-decoration: none; }
.footer-col h3 {
  font-family: var(--font-label); font-weight: 700; text-transform: uppercase; letter-spacing: 2px;
  color: var(--brass); font-size: 0.85rem; margin-bottom: 12px;
  padding-bottom: 10px; border-bottom: 1px solid var(--border);
}
.footer-author { color: var(--cream); font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.footer-col p { line-height: 1.65; }
.footer-credits p + p { margin-top: 12px; }
.footer-notes { padding-bottom: 28px; }
.footer-notes p { font-size: 0.8rem; opacity: 0.8; padding-top: 20px; border-top: 1px solid var(--border); }
.footer-bottom { background: var(--bg); border-top: 1px solid var(--border); }
.footer-bottom-inner { display: flex; align-items: center; gap: 14px; padding-top: 18px; padding-bottom: 18px; }
.footer-bottom-inner p { font-size: 0.82rem; }
.logo-mark-small { width: 30px; height: 30px; }

/* ===== Téléphone et tablette ===== */
@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .two-cols { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 600px) {
  .logo-text { font-size: 1.1rem; white-space: nowrap; }
  .nav a { font-size: 0.75rem; letter-spacing: 1px; }
  .nav { gap: 12px; }
  .hero { padding: 56px 0 52px; }
  .mrr-wrap { width: 104px; height: 104px; }
  .section { padding: 56px 0; }
  .cards, .gallery { grid-template-columns: 1fr; }
  .steps li { padding-left: 58px; }
  .panel { padding: 20px; }
  .btn-big { padding: 15px 36px; }
  .downloads { grid-template-columns: 1fr; }
  .more-list { grid-template-columns: 1fr; }
  .more { padding: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding-top: 44px; }
}