/* ===================================
   TRAVEL DESIGNER - CSS VARIABLES
   Definição de variáveis para temas
   =================================== */

:root {
  /* === CORES PRIMÁRIAS === */
  --primary-color: #1e40af;
  --primary-hover: #1e3a8a;
  --primary-light: #3b82f6;
  --primary-lighter: #60a5fa;

  --secondary-color: #10b981;
  --secondary-hover: #059669;
  --secondary-light: #34d399;

  --danger-color: #ef4444;
  --danger-hover: #dc2626;
  --danger-light: #f87171;

  --warning-color: #f59e0b;
  --warning-hover: #d97706;
  --warning-light: #fbbf24;

  --success-color: #10b981;
  --success-hover: #059669;

  --neutral-color: #6b7280;
  --neutral-hover: #4b5563;
  --neutral-light: #9ca3af;

  /* === CORES DE FUNDO === */
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #e5e7eb;
  --bg-hover: #f3f4f6;
  --bg-active: #e5e7eb;
  --bg-overlay: rgba(0, 0, 0, 0.5);

  /* === CORES DE TEXTO === */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --text-inverse: #ffffff;
  --text-success: #059669;
  --text-danger: #dc2626;

  /* === CORES DE BORDA === */
  --border-color: #e5e7eb;
  --border-color-hover: #d1d5db;
  --border-color-focus: #3b82f6;
  --border-color-error: #ef4444;

  /* === SOMBRAS === */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

  /* === RAIO DE BORDA === */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* === ESPAÇAMENTOS === */
  --spacing-0: 0;
  --spacing-1: 0.25rem;   /* 4px */
  --spacing-2: 0.5rem;    /* 8px */
  --spacing-3: 0.75rem;   /* 12px */
  --spacing-4: 1rem;      /* 16px */
  --spacing-5: 1.25rem;   /* 20px */
  --spacing-6: 1.5rem;    /* 24px */
  --spacing-8: 2rem;      /* 32px */
  --spacing-10: 2.5rem;   /* 40px */
  --spacing-12: 3rem;     /* 48px */
  --spacing-16: 4rem;     /* 64px */
  --spacing-20: 5rem;     /* 80px */

  /* === TIPOGRAFIA === */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Roboto Mono', 'Courier New', monospace;

  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* === TRANSIÇÕES === */
  --transition-fast: 0.15s;
  --transition-base: 0.2s;
  --transition-slow: 0.3s;
  --transition-slower: 0.5s;

  /* === Z-INDEX === */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-tooltip: 1070;
}

/* ===================================
   DARK MODE
   =================================== */

[data-theme="dark"] {
  /* === CORES PRIMÁRIAS (ajustadas para dark) === */
  --primary-color: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: #2563eb;

  --secondary-color: #34d399;
  --secondary-hover: #6ee7b7;

  --danger-color: #f87171;
  --danger-hover: #fca5a5;

  --warning-color: #fbbf24;
  --warning-hover: #fcd34d;

  /* === CORES DE FUNDO === */
  --bg-primary: #1f2937;
  --bg-secondary: #111827;
  --bg-tertiary: #374151;
  --bg-hover: #374151;
  --bg-active: #4b5563;
  --bg-overlay: rgba(0, 0, 0, 0.7);

  /* === CORES DE TEXTO === */
  --text-primary: #f9fafb;
  --text-secondary: #d1d5db;
  --text-tertiary: #9ca3af;
  --text-inverse: #1f2937;
  --text-success: #34d399;
  --text-danger: #f87171;

  /* === CORES DE BORDA === */
  --border-color: #374151;
  --border-color-hover: #4b5563;
  --border-color-focus: #3b82f6;
  --border-color-error: #f87171;

  /* === SOMBRAS (mais escuras) === */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
}

/* ===================================
   SMOOTH THEME TRANSITION
   =================================== */

* {
  transition: background-color var(--transition-base) ease,
              color var(--transition-base) ease,
              border-color var(--transition-base) ease;
}

/* Não aplicar transição em elementos que precisam de resposta imediata */
input, button, select, textarea {
  transition: background-color var(--transition-base) ease,
              color var(--transition-base) ease,
              border-color var(--transition-base) ease,
              box-shadow var(--transition-base) ease;
}