/* Front Row : styles partagés des pages secondaires (palette A) */
:root {
  --bg: #0a0b0d;
  --panel: #131519;
  --dark: #101317;
  --dark-2: #1a1e24;
  --ink: #f5f6f8;
  --ink-2: #c9ced6;
  --ink-3: #8a919d;
  --ink-4: #767d89;
  --green: #00ff80;
  --border: rgba(245,246,248,0.14);
  --border-subtle: rgba(245,246,248,0.08);
  --radius: 16px;
  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-inout: cubic-bezier(0.76, 0, 0.24, 1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--ink-2); font-family: 'Instrument Sans', system-ui, -apple-system, sans-serif; font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; }
::selection { background: rgba(0,255,128,0.25); color: var(--ink); }
a { color: inherit; text-decoration: none; }
img { display: block; }
.wrap { max-width: 1220px; margin: 0 auto; padding: 0 28px; width: 100%; }

/* Nav glass */
nav { position: sticky; top: 0; z-index: 50; background: rgba(24,27,32,0.55); backdrop-filter: blur(20px) saturate(180%) brightness(105%); -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(105%); border-bottom: 1px solid rgba(0,255,128,0.25); box-shadow: 0 8px 32px rgba(0,0,0,0.4), 0 2px 8px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.14); }
nav::before { content: ''; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(ellipse 80% 40% at 30% 0%, rgba(255,255,255,0.14) 0%, transparent 70%); }
.nav-inner { max-width: 1220px; margin: 0 auto; padding: 0 28px; height: 72px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { height: 32px; width: auto; display: block; filter: drop-shadow(0 0 7px rgba(0,255,128,0.5)); }
.brand-name { font-weight: 700; font-size: 18px; color: var(--ink); letter-spacing: -0.2px; }
.nav-links { display: flex; align-items: center; gap: 34px; font-size: 15px; font-weight: 600; }
.nav-links a:not(.btn) { color: var(--ink-2); transition: color .15s; }
.nav-links a:not(.btn):hover { color: #fff; }

/* Boutons capsules */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 9999px; font-size: 15px; font-weight: 600; cursor: pointer; font-family: inherit; transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.18s ease, border-color 0.18s ease; }
.btn:active { transform: scale(0.96); }
.btn-primary { position: relative; overflow: hidden; background: rgba(0,255,128,0.55); backdrop-filter: blur(16px) saturate(200%); -webkit-backdrop-filter: blur(16px) saturate(200%); border: 1px solid rgba(140,255,200,0.4); color: #04140d; font-weight: 700; box-shadow: 0 4px 16px rgba(0,255,128,0.28), inset 0 1px 0 rgba(255,255,255,0.4); }
.btn-primary::before { content: ''; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: radial-gradient(ellipse 70% 45% at 50% -10%, rgba(255,255,255,0.45) 0%, transparent 65%); }
.btn-primary:hover { transform: scale(1.03); box-shadow: 0 6px 24px rgba(0,255,128,0.38), inset 0 1px 0 rgba(255,255,255,0.5); }
.btn-ghost { background: rgba(255,255,255,0.08); backdrop-filter: blur(12px) saturate(150%); -webkit-backdrop-filter: blur(12px) saturate(150%); border: 1px solid rgba(255,255,255,0.22); color: var(--ink); box-shadow: inset 0 1px 0 rgba(255,255,255,0.12); }
.btn-ghost:hover { background: rgba(255,255,255,0.14); transform: scale(1.03); }
@media (prefers-reduced-transparency: reduce) {
  nav { background: rgba(16,19,23,0.97); backdrop-filter: none; -webkit-backdrop-filter: none; }
  .btn-primary { background: #00e97f; backdrop-filter: none; -webkit-backdrop-filter: none; }
  .btn-ghost { background: rgba(255,255,255,0.14); backdrop-filter: none; -webkit-backdrop-filter: none; }
}

/* Page header */
.page-head { padding: 70px 0 30px; }
.kicker { font-size: 14px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--green); margin-bottom: 18px; }
h1.page-title { font-size: clamp(38px, 5vw, 64px); font-weight: 700; line-height: 1.03; letter-spacing: -0.03em; color: var(--ink); max-width: 20ch; }
.page-lede { margin-top: 20px; font-size: clamp(17px, 1.8vw, 20px); color: var(--ink-2); max-width: 56ch; }

/* Footer */
footer { border-top: 1px solid var(--border-subtle); padding: 40px 0; margin-top: auto; }
.foot-inner { max-width: 1220px; margin: 0 auto; padding: 0 28px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; font-size: 14px; color: var(--ink-4); }
.foot-logo { height: 28px; width: auto; opacity: 0.9; }
.foot-inner a { color: var(--ink-3); }
.foot-inner a:hover { color: var(--ink); }

/* Formulaire */
.form-card {
  background: var(--panel); border: 1px solid var(--border-subtle);
  border-radius: 22px; padding: 48px 44px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.07);
  max-width: 720px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: span 2; }
.form-field label { font-size: 13px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; color: var(--ink-3); }
.form-field label .req { color: var(--green); }
.form-field input, .form-field select, .form-field textarea {
  background: var(--bg); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px; font-family: inherit; font-size: 16px; color: var(--ink);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(0,255,128,0.15);
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-field .hint { font-size: 13px; color: var(--ink-4); }
.form-field .error-msg { display: none; font-size: 13px; color: #ff7a7a; }
.form-field.invalid input, .form-field.invalid select, .form-field.invalid textarea { border-color: #ff7a7a; }
.form-field.invalid .error-msg { display: block; }
.form-actions { margin-top: 28px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.form-status { display: none; padding: 14px 18px; border-radius: 12px; font-size: 15px; margin-top: 20px; }
.form-status.error { display: block; background: rgba(255,122,122,0.1); border: 1px solid rgba(255,122,122,0.35); color: #ff9f9f; }
.form-status.loading { display: block; background: rgba(0,255,128,0.08); border: 1px solid rgba(0,255,128,0.25); color: var(--green); }
.btn.loading { opacity: 0.6; pointer-events: none; }
.choice-pills { display: flex; gap: 10px; flex-wrap: wrap; }
.choice-pills input { position: absolute; opacity: 0; pointer-events: none; }
.choice-pills label {
  display: inline-flex; padding: 9px 18px; border-radius: 9999px; cursor: pointer;
  border: 1px solid var(--border); font-size: 14px; font-weight: 600; color: var(--ink-2);
  transition: all .15s ease;
}
.choice-pills input:checked + label { background: rgba(0,255,128,0.12); border-color: var(--green); color: var(--green); }
.choice-pills input:focus-visible + label { outline: 2px solid rgba(0,255,128,0.7); outline-offset: 3px; }
@media (max-width: 700px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-field.full { grid-column: span 1; }
  .form-card { padding: 32px 24px; }
}
:focus-visible { outline: 2px solid rgba(0,255,128,0.7); outline-offset: 3px; border-radius: 4px; }