/*
 * BASE.CSS - Fortune Casino
 * Reset CSS, variáveis globais, cores e tipografia base
 * Mobile-first approach
 */

/* ===== CSS RESET ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #ffffff;
  background-color: #111827;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Remove default button styles */
button {
  border: none;
  outline: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* Remove default link styles */
a {
  color: inherit;
  text-decoration: none;
}

/* Remove default list styles */
ul,
ol {
  list-style: none;
}

/* Improve media defaults */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Remove built-in form typography */
input,
button,
textarea,
select {
  font: inherit;
}

/* ===== CSS VARIABLES ===== */
:root {
  /* Colors - Fortune Casino Theme */
  --color-primary: #f59e0b;        /* Yellow-500 */
  --color-primary-hover: #d97706;  /* Yellow-600 */
  --color-secondary: #ea580c;      /* Orange-600 */
  --color-secondary-hover: #c2410c; /* Orange-700 */
  
  /* Grays */
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  /* Semantic Colors */
  --color-success: #10b981;        /* Emerald-500 */
  --color-warning: #f59e0b;        /* Yellow-500 */
  --color-error: #ef4444;          /* Red-500 */
  --color-info: #3b82f6;           /* Blue-500 */
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  --gradient-dark: linear-gradient(135deg, var(--color-gray-900), var(--color-gray-800));
  
  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  
  /* Font weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  
  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;
}

/* ===== UTILITY CLASSES ===== */

/* Text utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Font weights */
.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }
.font-extrabold { font-weight: var(--font-weight-extrabold); }

/* Colors */
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-white { color: var(--color-white); }
.text-gray-300 { color: var(--color-gray-300); }
.text-gray-400 { color: var(--color-gray-400); }

.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-gray-800 { background-color: var(--color-gray-800); }
.bg-gray-900 { background-color: var(--color-gray-900); }

/* Gradients */
.bg-gradient-primary { background: var(--gradient-primary); }
.bg-gradient-dark { background: var(--gradient-dark); }

/* Display utilities */
.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

/* Flex utilities */
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

/* Spacing */
.p-2 { padding: var(--space-sm); }
.p-4 { padding: var(--space-md); }
.p-6 { padding: var(--space-lg); }

.m-2 { margin: var(--space-sm); }
.m-4 { margin: var(--space-md); }
.m-6 { margin: var(--space-lg); }

.mt-2 { margin-top: var(--space-sm); }
.mt-4 { margin-top: var(--space-md); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-4 { margin-bottom: var(--space-md); }

/* Border radius */
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Transitions */
.transition-all { transition: all 0.2s ease-in-out; }
.transition-colors { transition: color 0.2s ease-in-out, background-color 0.2s ease-in-out; }

/* Button base styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-medium);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  min-height: 44px; /* Acessibilidade: área de toque mínima */
  min-width: 44px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-black);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: var(--color-gray-700);
  color: var(--color-white);
  border: 1px solid var(--color-gray-600);
}

.btn-secondary:hover {
  background-color: var(--color-gray-600);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Form elements */
.form-input {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--color-gray-700);
  border: 1px solid var(--color-gray-600);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: 16px; /* iOS zoom prevention */
  min-height: 44px;
}

.form-input::placeholder {
  color: var(--color-gray-400);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

/* Card component */
.card {
  background-color: var(--color-gray-800);
  border: 1px solid var(--color-gray-700);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all 0.2s ease-in-out;
}

.card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===== ACCESSIBILITY ===== */

/* Skip link for screen readers */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--color-primary);
  color: var(--color-black);
  padding: 8px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-bold);
  z-index: var(--z-toast);
}

.skip-link:focus {
  top: 6px;
}

/* Focus visible for keyboard navigation */
.btn:focus-visible,
.form-input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #ffb800;
    --color-secondary: #ff6600;
  }
}