/* ====================== GLOBAL VARIABLES ====================== */
:root {
  /* Cores base (aplicam-se a ambos os temas) */
  --primary-color: #6a11cb;
  --secondary-color: #2575fc;
  --accent-color: #00c6ff;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --master-color: #FFD700;
  --user-color: #00ff00;
  --bot-color: #8B5CF6;

  /* Tema claro (padrão) */
  --bg-primary: #f8fafc;
  --bg-secondary: #e2e8f0;
  --bg-tertiary: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-border: rgba(0, 0, 0, 0.1);
  --input-bg: rgba(0, 0, 0, 0.05);
  --input-border: rgba(0, 0, 0, 0.1);
  --header-bg: rgba(248, 250, 252, 0.8);
  --footer-bg: rgba(248, 250, 252, 0.8);
  --modal-bg: #f8fafc;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.8);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
  --hover-lightness: 0.95;
  --theme: 'light';

  /* Transitions */
  --transition-slow: 0.5s ease;
  --transition-normal: 0.3s ease;
  --transition-fast: 0.2s ease;
}

[data-theme="dark"] {
  /* Tema escuro - sobrescreve as variáveis de cor */
  --bg-primary: #121826;
  --bg-secondary: #0a0f18;
  --bg-tertiary: #1e293b;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --card-bg: rgba(30, 41, 59, 0.6);
  --card-border: rgba(255, 255, 255, 0.05);
  --input-bg: rgba(255, 255, 255, 0.05);
  --input-border: rgba(255, 255, 255, 0.1);
  --header-bg: rgba(10, 15, 24, 0.8);
  --footer-bg: rgba(10, 15, 24, 0.8);
  --modal-bg: #121826;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.15);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.36);
  --hover-lightness: 1.15;
  --theme: 'dark';
}

/* Transição suave para temas */
* {
  transition: background-color var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal);
}

/* ====================== AUTO THEME (follows system preference) ====================== */
@media (prefers-color-scheme: light) {
  [data-theme="auto"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #e2e8f0;
    --bg-tertiary: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --card-bg: rgba(255, 255, 255, 0.8);
    --card-border: rgba(0, 0, 0, 0.1);
    --input-bg: rgba(0, 0, 0, 0.05);
    --input-border: rgba(0, 0, 0, 0.1);
    --header-bg: rgba(248, 250, 252, 0.8);
    --footer-bg: rgba(248, 250, 252, 0.8);
    --modal-bg: #f8fafc;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
    --hover-lightness: 0.95;
    --theme: 'auto-light';
  }
}

@media (prefers-color-scheme: dark) {
  [data-theme="auto"] {
    --bg-primary: #121826;
    --bg-secondary: #0a0f18;
    --bg-tertiary: #1e293b;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --card-bg: rgba(30, 41, 59, 0.6);
    --card-border: rgba(255, 255, 255, 0.05);
    --input-bg: rgba(255, 255, 255, 0.05);
    --input-border: rgba(255, 255, 255, 0.1);
    --header-bg: rgba(10, 15, 24, 0.8);
    --footer-bg: rgba(10, 15, 24, 0.8);
    --modal-bg: #121826;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.36);
    --hover-lightness: 1.15;
    --theme: 'auto-dark';
  }
}