/* ═══════════════════════════════════════════════════════════
   AUPTIMA — Thème IA-LIGHT
   Pastels gradient (bleu → rose → lavande) + accent corail/rose
   Mobile-first, esthétique iOS-like
   ═══════════════════════════════════════════════════════════ */

:root {
  /* Palette — pastel soft */
  --bg:        #F4EFF8;
  --bg-2:      #EDE6F4;
  --bg-card:   #FFFFFF;
  --accent:    #E94B7C;
  --accent-lt: #FF8A9B;
  --accent-dk: #B83560;
  --text:      #1A1A2E;
  --text-2: #4E4B6A;
  --text-3: #5A5770;
  --text-muted: #5D5A7A;   /* alias historique (utilisé par les pages) */
  --text-1:    #1A1A2E;    /* alias historique */
  --accent-dark: #B83560;  /* alias historique */
  --border:    rgba(70, 50, 100, 0.08);
  --border-a:  rgba(233, 75, 124, 0.28);
  --radius:    20px;
  --radius-sm: 12px;
  --shadow:    0 8px 32px rgba(120, 90, 160, 0.10), 0 2px 6px rgba(120, 90, 160, 0.05);
  --shadow-g:  0 12px 48px rgba(233, 75, 124, 0.22);
  --trans:     0.3s ease;
  --font:      'Inter', 'Inter Fallback', system-ui, -apple-system, sans-serif;

  /* Navbar — verre dépoli pastel */
  --navbar-bg:            rgba(244, 239, 248, 0.55);
  --navbar-bg-scroll:     rgba(244, 239, 248, 0.96);
  --navbar-blur-scroll:   blur(24px);
  --navbar-border-scroll: rgba(70, 50, 100, 0.07);
  --navbar-shadow-scroll: 0 4px 24px rgba(120, 90, 160, 0.08);
  --nav-overlay-bg:       rgba(244, 239, 248, 0.99);

  /* Hero — blob multicolore IA, ancré en rem (stable au chargement de la police) */
  --hero-pattern:        none;
  --hero-pattern-size:   0 0;
  --hero-glow-top:       2rem;
  --hero-glow-left:      50%;
  --hero-glow-right:     auto;
  --hero-glow-transform: translateX(-50%);
  --hero-glow-w:         min(45rem, 140vw);
  --hero-glow-h:         38.75rem;
  --hero-glow-bg:
    radial-gradient(circle at 40% 35%, rgba(255, 180, 100, 0.55) 0%, transparent 38%),
    radial-gradient(circle at 65% 45%, rgba(233, 75, 124, 0.45) 0%, transparent 42%),
    radial-gradient(circle at 50% 65%, rgba(140, 110, 220, 0.40) 0%, transparent 45%),
    radial-gradient(circle at 30% 70%, rgba(110, 160, 230, 0.35) 0%, transparent 40%);
  --hero-scroll-grad:    linear-gradient(to bottom, rgba(70, 50, 100, 0.20), transparent);

  /* Boutons */
  --btn-primary-color: #FFFFFF;

  /* Accent shadows / tints sémantiques */
  --accent-shadow:    rgba(233, 75, 124, 0.32);
  --accent-shadow-lg: rgba(233, 75, 124, 0.45);
  --accent-tint:      rgba(233, 75, 124, 0.08);
  --accent-tint-md:   rgba(233, 75, 124, 0.18);

  /* États sémantiques transverses au thème */
  --state-connecting: #FF8A9B;
  --state-warn-text:  #B83560;
  --state-warn-bg:    rgba(233, 75, 124, 0.08);
  --state-warn-bord:  rgba(233, 75, 124, 0.40);
  --state-elite-bg:   linear-gradient(135deg, #1F2937, #374151);
  --state-elite-fg:   #FBBF24;
}

/* Gradient pastel global du body (scroll : pas de repaint plein écran au défilement) */
body {
  background:
    linear-gradient(180deg,
      #E8EFFF 0%,
      #F4E4F0 35%,
      #FBE2E8 60%,
      #ECE0F5 100%);
  background-attachment: scroll;
}

/* Footer reprend le pastel clair, pas un bloc plat */
.footer { background: transparent; border-top-color: var(--border); }

/* Cards & surfaces — arrondis, ombre douce IA (sans flou coûteux) */
.problems,
.reassurance { background: rgba(255, 255, 255, 0.35); }

.problem-card,
.pillar {
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.92);
}
.problem-card:hover,
.pillar:hover { background: rgba(255, 255, 255, 0.98); }

/* Boutons — gradient corail→rose, texte blanc */
.btn-primary {
  background: linear-gradient(135deg, var(--accent-lt) 0%, var(--accent) 60%, #C0438A 100%);
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(233, 75, 124, 0.38);
}
.btn-primary:hover { box-shadow: 0 12px 36px rgba(233, 75, 124, 0.55); }
.btn-secondary {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(70, 50, 100, 0.12);
  color: var(--text);
}
.btn-secondary:hover { background: #FFFFFF; border-color: var(--accent); color: var(--accent-dk); }

/* Badge — pastel rose, texte foncé */
.badge {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--border-a);
  color: var(--accent-dk);
}

/* Logo : gradient assorti */
.logo-icon {
  background: linear-gradient(135deg, var(--accent-lt) 0%, var(--accent) 70%);
  color: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(233, 75, 124, 0.32);
}

/* Hero — couleur d'accent sur titres */
.hero-content h1 span {
  background: linear-gradient(135deg, var(--accent) 0%, #8B6BD9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* CTA final — overlay rose+lavande */
.cta-final::before {
  background:
    radial-gradient(ellipse at 50% 110%, rgba(233, 75, 124, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 90%, rgba(140, 110, 220, 0.14) 0%, transparent 70%);
}

/* Pillar "featured" — fond rose ultra léger */
.pillar.featured {
  background: linear-gradient(135deg, rgba(233, 75, 124, 0.07) 0%, rgba(255, 255, 255, 0.92) 100%);
}
.pillar.featured::before { background: linear-gradient(135deg, var(--accent-lt), var(--accent)); }

/* Reassurance check — pastel rose */
.reassurance-check { background: rgba(233, 75, 124, 0.10); }

/* Divider gradient */
.divider { background: linear-gradient(90deg, var(--accent), var(--accent-lt), transparent); }

/* Desktop : rayons un peu plus larges, flou sur la navbar seulement */
@media (min-width: 1024px) {
  :root { --radius: 22px; --radius-sm: 14px; }
  .btn-primary { box-shadow: 0 8px 28px rgba(233, 75, 124, 0.42); }
  .btn-secondary, .badge { backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
}

/* Préfère les surfaces sans flou si l'utilisateur a demandé peu de transparence */
@media (prefers-reduced-transparency) {
  .btn-secondary, .badge, .navbar {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.96);
  }
}