/* ===== Blast Club — vanilla CSS, system fonts, mobile-first ===== */
/* Palette Raymond Loewy : écru / sable / beige, vert bouteille anglais + cobalt */
:root {
  --bg: #14351f;               /* vert bouteille anglais */
  --surface: #1c4429;          /* vert bouteille, légèrement plus clair (cartes) */
  --text: #f6f0e2;             /* écru */
  --muted: #cbb98c;            /* beige / sable */
  --accent: #ddc9a0;           /* sable — marque, CTA */
  --accent-ink: #14351f;
  --accent-2: #6fa0e6;         /* cobalt éclairci — liens, hover, focus */
  --line: #2b4a37;             /* vert bouteille, bordures */
  --radius: 14px;
  --maxw: 68rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: ui-rounded, "SF Pro Rounded", var(--font);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(60rem 40rem at 85% -10%, color-mix(in srgb, var(--accent-2) 20%, transparent), transparent 60%),
    radial-gradient(50rem 36rem at -10% 20%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Composants d'ambiance ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em;
  color: var(--accent-2); margin: 0 0 .75rem;
}
.eyebrow::before {
  content: ""; width: .4rem; height: .4rem; border-radius: 50%;
  background: var(--accent-2); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent-2) 25%, transparent);
}
.badge-pill {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .5rem 1rem; border-radius: 999px;
  background: color-mix(in srgb, var(--accent-2) 14%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent-2) 35%, var(--line));
  font-size: .85rem; color: var(--text); margin-bottom: 1.5rem;
}
.badge-pill .dot {
  width: .5rem; height: .5rem; border-radius: 50%; background: var(--accent-2);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent-2) 25%, transparent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .45; } }
.panel {
  background: linear-gradient(165deg, color-mix(in srgb, var(--surface) 92%, var(--accent-2) 8%), var(--surface));
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: clamp(1.75rem, 4vw, 3.5rem);
  box-shadow: 0 30px 60px -30px rgba(0,0,0,.55);
}

.container { max-width: var(--maxw); margin-inline: auto; padding-inline: 1.25rem; }
.section { padding-block: 4rem; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* ---------- Typographie ---------- */
h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; text-wrap: balance; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); margin-block: 0 1.5rem; }
h3 { font-size: 1.15rem; margin: 0 0 .5rem; }
p  { text-wrap: pretty; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 46ch; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header::after {
  content: ""; display: block; height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 50%, var(--accent) 100%);
  opacity: .85;
}
.nav { display: flex; align-items: center; gap: 1rem; min-height: 4rem; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--font-display); font-weight: 800; font-size: 1.25rem; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
.brand-mark {
  display: inline-grid; place-items: center; width: 2.2rem; height: 2.2rem;
  border-radius: 10px; font-size: 1.1rem;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
}
.nav-menu { display: flex; align-items: center; gap: 1.5rem; list-style: none; margin: 0 0 0 auto; padding: 0; }
.nav-menu a:not(.btn) { color: var(--text); text-decoration: none; font-weight: 500; }
.nav-menu a:not(.btn):hover { color: var(--accent-2); }
.nav-menu a.btn { text-decoration: none; }
.lang-switch a { border: 1px solid var(--line); border-radius: 999px; padding: .2rem .7rem; font-size: .85rem; }
.nav-toggle { display: none; background: none; border: 0; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-block; padding: .75rem 1.5rem;
  border-radius: 999px; text-decoration: none;
  font-weight: 700; transition: transform .15s ease, opacity .15s ease;
}
.btn:hover { transform: translateY(-3px); }
.btn-accent {
  background: linear-gradient(180deg, color-mix(in srgb, white 15%, var(--accent)), var(--accent));
  color: var(--accent-ink);
  box-shadow: 0 12px 28px -10px color-mix(in srgb, var(--accent) 65%, transparent);
}
.btn-accent:hover { box-shadow: 0 18px 34px -10px color-mix(in srgb, var(--accent) 75%, transparent); }
.btn-ghost { border: 1px solid var(--line); color: var(--text); background: color-mix(in srgb, var(--surface) 60%, transparent); }
.btn-ghost:hover { border-color: var(--accent-2); }

/* ---------- Hero ---------- */
.hero {
  padding-block: 4rem 3rem;
  display: grid; gap: 3rem;
  text-align: center;
}
.hero .lead { margin-inline: auto; }
.hero-cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-block: 2rem; }
.hero-visual { position: relative; display: flex; justify-content: center; }
.hero-visual::before {
  content: "";
  position: absolute; inset: -10%;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--accent-2) 30%, transparent), transparent 70%);
  filter: blur(20px);
  z-index: -1;
}
.hero-visual svg { width: 100%; max-width: 26rem; height: auto; filter: drop-shadow(0 20px 40px rgba(0,0,0,.35)); }
@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1.1fr .9fr;
    align-items: center;
    text-align: left;
    padding-block: 5rem 4rem;
  }
  .hero .lead { margin-inline: 0; }
  .hero-cta { justify-content: flex-start; }
  .hero-visual { order: 2; justify-content: flex-end; }
  .hero-visual svg { max-width: 30rem; }
}
/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding-block: 2rem 3rem; text-align: center; }
.stat {
  position: relative; overflow: hidden;
  background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 1.75rem 1rem;
  box-shadow: 0 20px 40px -24px rgba(0,0,0,.6);
  transition: transform .2s ease, box-shadow .2s ease;
}
.stat::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.stat:hover { transform: translateY(-4px); box-shadow: 0 26px 46px -22px rgba(0,0,0,.65); }
.stat-value { font-family: var(--font-display); font-size: clamp(1.5rem, 4vw, 2.5rem); font-weight: 800; color: var(--accent); margin: 0; }
.stat-label { margin: .25rem 0 0; color: var(--muted); font-size: .9rem; }

/* ---------- Grilles & cartes ---------- */
.grid-2, .grid-3 { display: grid; gap: 1.25rem; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.75rem;
  box-shadow: 0 20px 40px -28px rgba(0,0,0,.6);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent-2) 45%, var(--line)); box-shadow: 0 26px 46px -24px rgba(0,0,0,.65); }
.profile-meta { display: flex; gap: 1.5rem; margin: 0 0 1rem; padding: 0; }
.profile-meta dt { font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.profile-meta dd { margin: 0; font-weight: 700; color: var(--accent); }
.link-arrow { color: var(--accent-2); text-decoration: none; font-weight: 600; }
.link-arrow:hover { text-decoration: underline; }

/* ---------- Steps ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; counter-reset: step; }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step-num {
  display: inline-grid; place-items: center;
  width: 2.25rem; height: 2.25rem; border-radius: 50%;
  background: linear-gradient(180deg, color-mix(in srgb, white 15%, var(--accent)), var(--accent));
  color: var(--accent-ink);
  font-weight: 800; margin-bottom: .75rem;
  box-shadow: 0 10px 22px -8px color-mix(in srgb, var(--accent) 70%, transparent);
}

/* ---------- FAQ : <details> natif ---------- */
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; margin-bottom: .75rem; transition: border-color .2s ease; }
.faq-item:hover { border-color: color-mix(in srgb, var(--accent-2) 40%, var(--line)); }
.faq-item summary { cursor: pointer; padding: 1.1rem 1.4rem; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary h3 { display: inline; font-size: 1.05rem; }
.faq-item summary::after { content: "+"; float: right; font-weight: 700; color: var(--accent-2); }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { padding: 0 1.4rem 1.1rem; margin: 0; color: var(--muted); }

/* ---------- CTA + form ---------- */
.cta-band {
  background: linear-gradient(165deg, color-mix(in srgb, var(--surface) 90%, var(--accent-2) 10%), var(--surface));
  border-block: 1px solid var(--line); padding-block: 4rem; text-align: center;
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--accent) 20%, transparent);
}
.waitlist-form { display: flex; gap: .5rem; max-width: 26rem; margin: 1.5rem auto 0; }
.waitlist-form input {
  flex: 1; padding: .75rem 1rem;
  border-radius: 999px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); font: inherit;
}
.waitlist-form input:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }

.contact-form {
  display: grid; gap: .75rem; max-width: 28rem; margin: 1.5rem auto 0; text-align: left;
}
.contact-form input, .contact-form textarea {
  padding: .75rem 1rem; border-radius: 12px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); font: inherit; resize: vertical;
}
.contact-form input:focus-visible, .contact-form textarea:focus-visible {
  outline: 2px solid var(--accent-2); outline-offset: 2px;
}
.contact-form .btn { justify-self: start; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding-block: 3rem 2rem; color: var(--muted); }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); }
.site-footer h3 { font-size: .9rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--accent-2); }
.legal { margin-top: 2.5rem; font-size: .8rem; }
.legal-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); margin-bottom: 1.5rem; }
.legal-item {
  margin: 0; padding: 1rem 1.25rem; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--line);
  font-size: .8rem; line-height: 1.6; color: var(--muted);
}
.legal-item strong { color: var(--text); font-weight: 700; }
.legal-item abbr { text-decoration: underline dotted; text-decoration-color: var(--accent-2); cursor: help; }
.copyright { color: var(--muted); opacity: .7; }
.disclaimer { font-size: .8rem; color: var(--muted); opacity: .8; }

/* ---------- Manifeste (citation de positionnement) ---------- */
#offres { padding-bottom: 1.5rem; }
.manifesto {
  position: relative; overflow: hidden;
  max-width: 42rem; margin: calc(2rem + 20px) auto 0;
  padding: 2rem 2.25rem 2rem 3rem;
  font-family: var(--font-display); font-size: 1.15rem; font-style: italic;
  line-height: 1.65; color: var(--text);
  background: linear-gradient(160deg, color-mix(in srgb, var(--surface) 90%, var(--accent-2) 10%), var(--surface));
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 24px 50px -30px rgba(0,0,0,.6);
}
.manifesto::after {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 4px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
}
.manifesto::before {
  content: "“";
  position: absolute; top: -1.2rem; left: .75rem;
  font-family: var(--font-display); font-size: 6rem; font-style: normal;
  color: color-mix(in srgb, var(--accent) 35%, transparent);
  line-height: 1;
}
.manifesto strong { color: var(--accent); font-style: normal; font-weight: 700; }
.manifesto abbr { text-decoration: underline dotted; text-decoration-color: var(--accent-2); cursor: help; }

/* ---------- Menu mobile ---------- */
@media (max-width: 760px) {
  .nav-toggle { display: block; margin-left: auto; }
  .nav-menu {
    display: none; position: absolute; inset: 4rem 0 auto 0;
    flex-direction: column; align-items: flex-start;
    background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 1.25rem; gap: 1rem;
  }
  .nav-menu.open { display: flex; }
}

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

/* ---------- Portrait (page "lettre") ---------- */
.portrait-hero { position: relative; height: min(60vh, 32rem); overflow: hidden; }
.portrait-hero img {
  width: 100%; height: 100%; object-fit: cover; object-position: top;
  filter: grayscale(.25) sepia(.15);
}
.portrait-hero-overlay {
  position: absolute; inset: auto 0 0 0; padding-block: 3rem 2.5rem;
  background: linear-gradient(0deg, var(--bg) 15%, color-mix(in srgb, var(--bg) 70%, transparent) 70%, transparent);
}
.portrait-hero-overlay h1 { margin: 0; }
.portrait-quote { font-style: italic; color: var(--accent); font-size: 1.3rem; margin-top: .75rem; }

.letter-body {
  font-family: ui-serif, Georgia, "Times New Roman", serif;
  font-size: 1.15rem; line-height: 1.8; max-width: 42rem; margin-inline: auto;
}
.letter-body h2 {
  font-family: var(--font-display); font-size: .8rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--accent-2); font-weight: 700;
  margin: 0 0 1.5rem;
}
.letter-body p { margin: 0 0 1.75rem; text-align: justify; text-indent: 2rem; }
.letter-body p:first-of-type { text-indent: 0; }
.letter-body p:first-of-type::first-letter {
  float: left; font-size: 4.5rem; line-height: .8; padding: .1rem .8rem 0 0;
  font-family: var(--font-display); color: var(--accent); font-weight: 700;
}
.letter-body a { color: var(--accent-2); }
.separator { display: flex; align-items: center; text-align: center; margin: 2.5rem 0; }
.separator::before, .separator::after { content: ""; flex: 1; border-bottom: 1px solid var(--line); }
.separator span { padding: 0 1.25rem; color: var(--accent); font-size: 1.4rem; }
.letter-signature {
  text-align: right; font-family: var(--font-display); font-style: italic;
  font-size: 1.6rem; color: var(--accent); margin-top: 3rem !important; text-indent: 0 !important;
}
.letter-title { text-align: right; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); text-indent: 0 !important; }
.archives { margin-top: 3.5rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.archives ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .85rem; font-size: .95rem; }
.archives a { color: var(--accent-2); }

/* ---------- Guide (cocon pilier + articles) ---------- */
.breadcrumb {
  display: flex; gap: .5rem; flex-wrap: wrap; align-items: center;
  padding-block: 1.5rem 0; font-size: .85rem; color: var(--muted);
}
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent-2); }
.breadcrumb span[aria-hidden] { opacity: .5; }
.guide-list .card h3 a { color: var(--text); text-decoration: none; }
.guide-list .card h3 a:hover { color: var(--accent-2); }
.guide-author { font-size: .8rem; color: var(--muted); margin: .5rem 0 1rem; }
.article-author {
  display: flex; flex-wrap: wrap; align-items: center; gap: .5rem;
  font-family: var(--font); font-style: normal; font-size: .9rem;
  color: var(--muted); margin: 0 0 2.5rem; text-indent: 0;
  padding-bottom: 1.5rem; border-bottom: 1px solid var(--line);
}
.article-author strong { color: var(--text); }