:root {
  --color-bg: #0b0d12;
  --color-bg-elevated: #161a22;
  --color-bg-elevated-2: #1d2230;
  --color-text: #eef0f4;
  --color-text-muted: #9aa3b5;
  --color-primary: #6366f1;
  --color-primary-dark: #4338ca;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-border: #262b38;
  --radius: 14px;
  --radius-sm: 8px;
  --spacing: 8px;
  --gradient-primary: linear-gradient(135deg, #6366f1, #8b5cf6);
  --shadow-card: 0 1px 2px rgba(0,0,0,0.4);
}

[data-theme="light"] {
  --color-bg: #f4f5f8;
  --color-bg-elevated: #ffffff;
  --color-bg-elevated-2: #eef0f4;
  --color-text: #14161c;
  --color-text-muted: #5c6270;
  --color-border: #e2e4ea;
  --shadow-card: 0 1px 2px rgba(20,22,28,0.06);
}

/* Colores por estado de actividad, referenciados desde JS/calendario */
.estado-pendiente { color: var(--color-text-muted); }
.estado-en_progreso { color: var(--color-primary); }
.estado-completada { color: var(--color-success); }
.estado-atrasada { color: var(--color-danger); }
.estado-cancelada { color: var(--color-text-muted); text-decoration: line-through; }