/* ═══════════════════════════════════════════════════════════
   Studio ESEO — Page Demande de prestation
   Thème sombre de l'accueil (fond noir, accent rouge, menu et pied
   de page identiques). Feuille autonome : n'a pas besoin de accueil.css.
   Les tailles et graisses viennent de typo.css.
═══════════════════════════════════════════════════════════ */

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

:root {
  --noir:   #0d0d0f;
  --blanc:  #f5f3ee;
  --accent: #2dd4bf;
  --gris:   #2a2a30;
  --muted:  #9a9aaa;
  /* Image de fond et voile par-dessus. Pour changer d'image : modifier --presta-image.
     (le voile sombre devient un voile clair en mode clair : voir base.css) */
  --presta-image: url("1dx50mm.jpg");
  --presta-voile: linear-gradient(to bottom, rgba(13,13,15,0.55), rgba(13,13,15,0.92));
}

html { scroll-behavior: smooth; }

body {
  background: var(--noir);
  color: var(--blanc);
  font-family: var(--font);
  font-size: var(--fs-base);
  font-weight: var(--fw-body);
  line-height: var(--lh-body);
  overflow-x: hidden;
}

/* ── NAV (identique à l'accueil) ─────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 48px;
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(to bottom, rgba(13,13,15,0.95), transparent);
}

.nav-logo {
  font-size: var(--fs-logo);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-logo);
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
}

.nav-links { display: flex; gap: 32px; list-style: none; }

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-nav);
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--accent); }

/* ── Image de fond fixe ──────────────────────── */
.presta-bg {
  position: fixed; inset: 0;
  z-index: 0;
  background:
    var(--presta-voile),
    var(--presta-image) center / cover no-repeat;
}

/* ── Contenu ─────────────────────────────────── */
.presta {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
  padding: 150px 24px 72px;
}

.presta-head { text-align: center; margin-bottom: 40px; }

.presta-label {
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.2s;
}

.presta-title {
  font-size: var(--fs-hero);
  font-weight: var(--fw-bold);
  line-height: var(--lh-hero);
  letter-spacing: var(--ls-title);
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.4s;
}

.presta-desc {
  font-size: var(--fs-lead);
  color: #b0b0c0;
  line-height: 1.8;
  max-width: 480px;
  margin: 0 auto;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.6s;
}

/* ── Formulaire ──────────────────────────────── */
.presta-form {
  background: rgba(13,13,15,0.72);
  border: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(6px);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.field { display: flex; flex-direction: column; gap: 8px; }

.field label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--muted);
}
.req { color: var(--accent); }

.field input,
.field textarea {
  background: var(--noir);
  color: var(--blanc);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 13px 14px;
  font-family: var(--font);
  font-size: var(--fs-ui);
  font-weight: var(--fw-body);
  transition: border-color 0.2s;
}
.field textarea { resize: vertical; min-height: 110px; line-height: 1.6; }
.field input[type="date"] { color-scheme: dark; }
.field input::placeholder,
.field textarea::placeholder { color: #5c5c6a; }
.field input:focus,
.field textarea:focus { outline: none; border-color: var(--accent); }

/* Champ anti-spam caché */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

.form-actions { display: flex; flex-direction: column; align-items: center; gap: 14px; margin-top: 6px; }

.btn-send {
  background: var(--accent);
  color: var(--blanc);
  border: 0;
  padding: 16px 48px;
  font-family: var(--font);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-label);
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
}
.btn-send:hover { opacity: 0.9; transform: translateY(-2px); }
.btn-send:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.form-status { font-size: var(--fs-ui); min-height: 1.4em; text-align: center; }
.form-status.error   { color: #ff6b6b; }
.form-status.success { color: #4ade80; }
.form-status.loading { color: var(--muted); }

/* ── Liens sous le formulaire ────────────────── */
.presta-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  margin-top: 48px;
}

.btn-ghost {
  background: var(--gris);
  color: var(--blanc);
  text-decoration: none;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: var(--fs-ui);
  font-weight: var(--fw-semibold);
  transition: background 0.2s;
}
.btn-ghost:hover { background: #3a3a42; }

.back-top {
  color: var(--muted);
  text-decoration: none;
  font-size: var(--fs-ui);
  transition: color 0.2s;
}
.back-top:hover { color: var(--blanc); }

/* ── Footer ──────────────────────────────────── */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 48px 24px 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  background: rgba(13,13,15,0.85);
}

.socials { display: flex; gap: 24px; list-style: none; margin-bottom: 12px; }
.socials a {
  color: var(--muted);
  text-decoration: none;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  transition: color 0.2s;
}
.socials a:hover { color: var(--accent); }

.footer-logo {
  font-size: var(--fs-logo);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-logo);
  text-transform: uppercase;
  color: var(--accent);
}
.footer-copy { font-size: var(--fs-xs); color: var(--muted); letter-spacing: 1px; }
.footer-legal { font-size: var(--fs-xs); color: var(--muted); max-width: 620px; line-height: 1.8; margin-top: 8px; }
.footer-legal a { color: var(--blanc); }

/* ── Animations ──────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ──────────────────────────────── */
@media (max-width: 900px) {
  nav { padding: 20px 24px; }
  .presta { padding: 120px 16px 56px; }
  .presta-form { padding: 28px 18px; }
}