:root {
  /* Fonds */
  --horizon-bg:           #05091F;
  --horizon-bg-overlay:   #090e26;
  --horizon-bg-card:      #0d1229;
  --horizon-bg-card-lift: #131a38;
  --horizon-bg-hover:     #161c3a;

  /* Accent — Electric Blue */
  --horizon-accent:       #03A1EF;
  --horizon-accent-bright:#38b8f3;
  --horizon-accent-dim:   #0477b0;
  --horizon-accent-glow:  rgba(3, 161, 239, 0.22);

  /* Signal — Coral */
  --horizon-warm:         #E46F71;
  --horizon-warm-dim:     #b7545e;
  --horizon-warm-glow:    rgba(228, 111, 113, 0.2);

  /* Tertiaire — Soft blue-grey */
  --horizon-soft:         #7488B0;
  --horizon-soft-dim:     #52648c;

  /* Utilitaires */
  --horizon-success:      #86EFAC;
  --horizon-border:       #1f2747;
  --horizon-border-strong:#2a3457;
  --horizon-text:         #d4d4d4;
  --horizon-text-bright:  #fafafa;
  --horizon-text-dim:     #666c84;
  --horizon-text-whisper: #3a4566;

  /* Typographie */
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Monaco, Consolas, monospace;

  /* Rayons */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --radius-xl: 28px;

  /* Ombres */
  --shadow-card: 0 24px 60px -22px rgba(0,0,0,0.6), 0 2px 8px rgba(0,0,0,0.4);
  --shadow-lift: 0 42px 80px -28px rgba(0,0,0,0.75), 0 2px 12px rgba(0,0,0,0.5);
  --glow-accent:  0 0 32px rgba(3,161,239,0.32);
  --glow-warm:    0 0 32px rgba(228,111,113,0.28);

  /* Couleurs labels (palette kanban) */
  --label-blue:   #03A1EF;
  --label-coral:  #E46F71;
  --label-green:  #86EFAC;
  --label-soft:   #7488B0;
  --label-yellow: #F5C842;
  --label-purple: #A78BFA;
}