/* ============================================================================
   space.css — Thème "Espace" (couche additive, chargée après main.css)
   Fond : nébuleuse procédurale violette plein écran. Accent violet conservé.
   Hero centré : grand titre blanc + dropzone épurée. Zéro dépendance externe.
   ========================================================================== */

/* ── Fontes self-hébergées (SIL OFL, servies depuis le VPS) ───────────────── */
@font-face { font-family:'Space Grotesk'; src:url('/fonts/space-grotesk-500.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'Space Grotesk'; src:url('/fonts/space-grotesk-700.woff2') format('woff2'); font-weight:700; font-display:swap; }
@font-face { font-family:'Inter var';     src:url('/fonts/inter-400.woff2') format('woff2'); font-weight:400; font-display:swap; }
@font-face { font-family:'Inter var';     src:url('/fonts/inter-500.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'Inter var';     src:url('/fonts/inter-600.woff2') format('woff2'); font-weight:600; font-display:swap; }

/* ── Palette : violet conservé, fond bleu-nuit spatial ────────────────────── */
:root {
  --bg:           #05060f;
  --bg2:          #0c1024;
  --bg3:          #141a36;
  --border:       #262e54;
  --accent:       #6c63ff;
  --accent-hover: #7d75ff;
  --accent-dim:   rgba(108, 99, 255, 0.15);
  --text:         #eef0fb;
  --text-muted:   #969cc4;
  --success:      #4ade80;
  --error:        #f87171;
  --on-accent:    #ffffff;
  --surface:      #0c1024;   /* alias attendu par pages.css (legal/admin/contact) */
  --muted:        #969cc4;   /* alias attendu par pages.css */
  --font:         'Inter var', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', var(--font);
}

/* couleur de base sur html ; body transparent pour que la nébuleuse fixe transparaisse */
html { background: #05060f; }
body { background: transparent; font-family: var(--font); letter-spacing: -0.006em; }
.page { position: relative; z-index: 0; }   /* le contenu passe au-dessus du décor */

/* ── Décor spatial plein écran (fixe, derrière tout) ──────────────────────── */
/* Nébuleuse en pur CSS (légère) — remplace le SVG feTurbulence qui gelait les pages. */
.space-bg {
  position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
  background:
    radial-gradient(130% 85% at 50% 6%, #18244e 0%, #0b1228 42%, #060912 76%),
    #060912;
}
/* Volutes colorées : 2 couches animées en sens opposés (parallaxe visible, GPU) */
.space-bg::before, .space-bg::after {
  content: '';
  position: absolute;
  inset: -55%;
  z-index: 0;
  pointer-events: none;
  will-change: transform;
}
.space-bg::before {
  background:
    radial-gradient(40% 36% at 68% 20%, rgba(124, 99, 255, 0.46), transparent 60%),
    radial-gradient(34% 30% at 52% 78%, rgba(99, 102, 241, 0.26), transparent 62%);
  animation: nebula-a 20s ease-in-out infinite;
}
.space-bg::after {
  background:
    radial-gradient(42% 36% at 24% 48%, rgba(168, 85, 247, 0.38), transparent 60%);
  animation: nebula-b 26s ease-in-out infinite;
}
@keyframes nebula-a {
  0%, 100% { transform: translate3d(-14%, -6%, 0) scale(1.00) rotate(0deg); }
  50%      { transform: translate3d(14%, 9%, 0)   scale(1.24) rotate(12deg); }
}
@keyframes nebula-b {
  0%, 100% { transform: translate3d(13%, 8%, 0)   scale(1.20) rotate(0deg); }
  50%      { transform: translate3d(-13%, -10%, 0) scale(1.00) rotate(-11deg); }
}
/* On neutralise le SVG coûteux (gardé dans le HTML mais non rendu) */
.space-nebula { display: none !important; }

/* champ d'étoiles par-dessus la nébuleuse (deux densités + scintillement) */
.space-stars,
.space-stars::before {
  content: ''; position: absolute; inset: -50%; background-repeat: repeat;
}
.space-stars {
  z-index: 1;
  background-image:
    radial-gradient(1.2px 1.2px at 40px 60px,  rgba(255,255,255,.95), transparent),
    radial-gradient(1px   1px   at 130px 200px, rgba(214,224,255,.7),  transparent),
    radial-gradient(1.5px 1.5px at 300px 120px, rgba(255,255,255,.9),  transparent),
    radial-gradient(1px   1px   at 220px 350px, rgba(226,224,255,.65), transparent),
    radial-gradient(1.3px 1.3px at 380px 280px, rgba(208,200,255,.8),  transparent);
  background-size: 420px 420px;
  animation: space-twinkle 7s ease-in-out infinite alternate, star-drift-a 90s linear infinite;
}
.space-stars::before {
  background-image:
    radial-gradient(1.8px 1.8px at 90px 110px,  rgba(255,255,255,.95), transparent),
    radial-gradient(1px   1px   at 250px 60px,  rgba(190,200,255,.6),  transparent),
    radial-gradient(2.2px 2.2px at 160px 320px, rgba(199,184,255,.9),  transparent),
    radial-gradient(1px   1px   at 360px 190px, rgba(255,255,255,.6),  transparent);
  background-size: 660px 660px;
  animation: space-twinkle 11s ease-in-out infinite alternate, star-drift-b 140s linear infinite;
}
@keyframes space-twinkle { from { opacity:.45; } to { opacity:1; } }
@keyframes star-drift-a { from { background-position: 0 0; } to { background-position: -420px -420px; } }
@keyframes star-drift-b { from { background-position: 0 0; } to { background-position: 660px -660px; } }

/* étoiles qui pulsent individuellement (bien visibles) */
.space-twinkles { position: absolute; inset: 0; z-index: 1; }
.space-twinkles i {
  position: absolute; width: 3px; height: 3px; border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 7px 1px rgba(199,184,255,.85), 0 0 2px 0 #fff;
  opacity: .2;
  animation: star-pulse 3.4s ease-in-out infinite;
}
@keyframes star-pulse {
  0%, 100% { opacity: .15; transform: scale(.55); }
  50%      { opacity: 1;   transform: scale(1.25); }
}
.space-twinkles i:nth-child(2n)   { animation-duration: 4.7s; }
.space-twinkles i:nth-child(3n)   { animation-duration: 2.6s; width: 2px; height: 2px; }
.space-twinkles i:nth-child(2n+1) { animation-delay: -1.3s; }
.space-twinkles i:nth-child(3n+1) { animation-delay: -2.4s; }
.space-twinkles i:nth-child(5n)   { animation-delay: -3.2s; width: 4px; height: 4px; }

/* vignette pour concentrer le regard, douce en haut */
.space-vignette {
  position: absolute; inset: 0; z-index: 2;
  background: radial-gradient(140% 105% at 50% 42%, transparent 48%, rgba(5,6,15,.42) 80%, rgba(5,6,15,.9) 100%);
}

/* ── Navigation ───────────────────────────────────────────────────────────── */
.nav { margin-bottom: 0; }
.nav-logo, .auth-logo { font-family: var(--font-display); font-weight: 700; }
.nav-logo span { color: var(--accent); }
.nav-btn { color: #fff !important; }

/* ── Menu burger (mobile) — 100% CSS, aucune dépendance JS ────────────────── */
.nav-toggle, .nav-burger { display: none; }
@media (max-width: 640px) {
  .nav { position: relative; flex-wrap: wrap; }
  .nav-burger {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; border-radius: 10px;
    color: var(--text); border: 1px solid var(--border);
    background: rgba(12, 16, 36, 0.6); cursor: pointer;
  }
  .nav-burger:active { background: var(--accent-dim); border-color: var(--accent); }
  /* panneau déroulant */
  .nav-links {
    display: none; position: absolute; top: calc(100% + 10px);
    left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 4px;
    padding: 10px; background: rgba(10, 14, 32, 0.98);
    border: 1px solid var(--border); border-radius: 14px;
    box-shadow: 0 24px 50px -20px rgba(0, 0, 0, 0.85); z-index: 50;
  }
  .nav-toggle:checked ~ .nav-links { display: flex; }
  /* ré-afficher les liens que main.css masque sur mobile, en pleine largeur */
  .nav-links a:not(.nav-btn) {
    display: block !important; padding: 11px 14px; border-radius: 9px;
    color: var(--text); font-size: 15px; font-weight: 500;
  }
  .nav-links a:not(.nav-btn):active { background: var(--bg3); }
  .nav-links .nav-btn { text-align: center; margin-top: 4px; padding: 12px 14px; }
}

/* ── Hero centré ──────────────────────────────────────────────────────────── */
.hero {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: clamp(8px, 2.5vh, 28px) 24px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.hero-head { margin-bottom: 52px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.18em;
  color: #c2bcff;
  padding: 5px 14px; margin-bottom: 22px;
  border: 1px solid rgba(108,99,255,.35);
  border-radius: 100px;
  background: rgba(108,99,255,.10);
  backdrop-filter: blur(4px);
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 6.4vw, 5.2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #ffffff;
  max-width: 32ch;
  margin: 0 auto;
  text-shadow: 0 2px 40px rgba(108,99,255,.35);
}
.hero-sub {
  margin: 24px auto 0;
  max-width: 66ch;
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
  line-height: 1.7;
  color: var(--text-muted);
}

/* ── Carte d'envoi épurée, centrée, en "verre" sur la nébuleuse ───────────── */
.home-upload { width: 100%; max-width: 680px; margin: 0 auto; }
.home-upload .card {
  max-width: none;
  background: rgba(10, 14, 32, 0.72);
  backdrop-filter: blur(18px) saturate(125%);
  border: 1px solid rgba(140, 150, 210, 0.18);
  border-radius: 18px;
  box-shadow:
    0 30px 80px -30px rgba(0,0,0,.8),
    0 0 0 1px rgba(108,99,255,.05),
    inset 0 1px 0 rgba(255,255,255,.05);
}

/* dropzone : grande, aérée, minimale */
.dropzone {
  border: 1.5px dashed rgba(140,150,210,.32);
  border-radius: 14px;
  padding: 56px 24px;
  background: rgba(8, 11, 26, 0.35);
  transition: border-color .2s, background .2s, transform .2s;
}
.dropzone:hover { border-color: rgba(108,99,255,.6); background: rgba(108,99,255,.06); }
.dropzone.drag-over { border-color: var(--accent); background: var(--accent-dim); transform: translateY(-2px); }
.dz-icon { margin-bottom: 14px; }
.dz-icon svg { width: 44px; height: 44px; color: var(--accent); filter: drop-shadow(0 4px 14px rgba(108,99,255,.45)); }
/* Décor de la dropzone transparent aux clics → tout clic atteint l'input fichier */
.dropzone .dz-icon, .dropzone .dz-title, .dropzone .dz-sub { pointer-events: none; }
.dz-title { font-family: var(--font-display); font-size: 18px; font-weight: 700; }

/* boutons primaires : violet, texte blanc, halo */
.btn {
  background: linear-gradient(180deg, var(--accent-hover), var(--accent));
  color: #fff;
  border-radius: 12px;
  box-shadow: 0 10px 30px -12px rgba(108,99,255,.8);
}
.btn:hover:not(:disabled) { background: var(--accent-hover); }

.paid-option-price, .price-summary strong { color: var(--accent); }
.paid-option:hover, .paid-option:has(input:checked) { border-color: var(--accent); background: var(--accent-dim); }

/* ── Section preuve (sous le hero) ────────────────────────────────────────── */
.proof-section { margin-top: 96px; }
.proof-section-eyebrow { color: #c2bcff; }
.proof-section-title { font-family: var(--font-display); font-size: 1.9rem; letter-spacing: -0.02em; }
.proof-steps { border-color: rgba(140,150,210,.16); background: rgba(140,150,210,.14); }
.proof-step { background: rgba(10,14,32,.74); backdrop-filter: blur(6px); }
.proof-step--highlight { background: rgba(20,26,54,.82); box-shadow: inset 0 0 0 1px rgba(108,99,255,.20); }
.proof-step-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--accent-dim); border: 1px solid rgba(108,99,255,.24); color: var(--accent);
}
.proof-step-icon svg { width: 20px; height: 20px; }
.proof-step-name { font-family: var(--font-display); }
.proof-step-tag--paid { background: rgba(108,99,255,.12); color: var(--accent); border: 1px solid rgba(108,99,255,.28); }

/* ── Pages internes : harmonisation des éléments encore en couleurs claires ── */
.btn-send { background: var(--accent); }
.btn-send:hover { background: var(--accent-hover); }
.btn-send:disabled { background: var(--bg3); color: var(--text-muted); }
/* cartes/sidebars qui utilisaient var(--surface) désormais défini → glass léger */
.admin-sidebar, .stat-box, .pow-widget { backdrop-filter: blur(4px); }

/* ── Footer plus discret sur fond spatial ─────────────────────────────────── */
.footer { color: var(--text-muted); }

/* ── Accessibilité ────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .space-stars, .space-stars::before, .space-twinkles i, .space-bg::before, .space-bg::after { animation: none; }
  .space-twinkles i { opacity: .7; }
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
/* Tablette */
@media (max-width: 768px) {
  .hero-head { margin-bottom: 36px; }
  .proof-section { margin-top: 64px; }
}

/* Mobile */
@media (max-width: 640px) {
  .page { padding-top: 22px; }
  .hero { padding: 20px 16px 0; }
  .hero-eyebrow { margin-bottom: 16px; }
  .hero-title { font-size: clamp(2rem, 8.5vw, 2.8rem); max-width: 16ch; line-height: 1.08; }
  .hero-sub { font-size: 1rem; margin-top: 16px; max-width: 42ch; }
  .dropzone { padding: 40px 16px; }
  .proof-section { margin-top: 48px; }

  /* Perf mobile : on retire les flous (coûteux en GPU) et on opacifie pour rester lisible */
  .home-upload .card { background: rgba(10, 14, 32, 0.94); backdrop-filter: none; }
  .proof-step { background: rgba(10, 14, 32, 0.92); backdrop-filter: none; }
  .hero-eyebrow, .pitch-trust-badge,
  .admin-sidebar, .stat-box, .pow-widget { backdrop-filter: none; }
  /* étoiles : on allège un peu sur petit écran */
  .space-twinkles i:nth-child(n+11) { display: none; }
}

/* Petits mobiles */
@media (max-width: 380px) {
  .hero-title { font-size: 1.85rem; }
  .dz-title { font-size: 16px; }
}

/* ── Wizard d'envoi (préprod) : 3 étapes en flip 3D ───────────────────────── */
.wizard {
  position: relative;
  perspective: 1600px;
  transition: height .3s ease;
}
.wizard-step {
  display: none;
  transform-origin: center center;
  backface-visibility: hidden;
  transition: transform .28s cubic-bezier(.4,.1,.2,1), opacity .28s ease;
}
.wizard-step.is-active { display: block; }

.wizard-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 18px;
}
.wz-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: background .3s ease, transform .3s ease;
}
.wz-dot.is-on {
  background: var(--accent);
  transform: scale(1.25);
}

.wizard-nav { margin-top: 18px; }
.wizard-back {
  display: inline-block;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  padding: 0 0 14px;
}
.wizard-back:hover { color: var(--accent); }

/* feedback "champ requis" sur l'étape destinataires */
@keyframes wzShake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-5px)} 75%{transform:translateX(5px)} }
.wz-shake { animation: wzShake .25s ease 2; border-color: #dc2626 !important; }

/* Léger espace en haut quand on "focalise" la carte d'envoi (scrollIntoView) */
.card { scroll-margin-top: 16px; }