/**
 * Base Styles - Reset, Typography, Utilities
 */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(216, 67, 21, 0.08), transparent 40%),
    radial-gradient(circle at 80% 0%, rgba(205, 220, 57, 0.08), transparent 45%),
    linear-gradient(120deg, rgba(216, 67, 21, 0.04), transparent 50%);
  pointer-events: none;
  z-index: -1;
  filter: blur(0);
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.6;
  pointer-events: none;
  z-index: -2;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  letter-spacing: 0.5px;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.25rem); }
h2 { font-size: clamp(2rem, 3.75vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h4 { font-size: clamp(1.375rem, 2.5vw, 1.75rem); }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-lg);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

/* Container */
.container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

.container-sm {
  max-width: 800px;
}

.container-lg {
  max-width: 1400px;
}

/* Layout */
.page {
  min-height: 100vh;
  padding-top: 100px;
}
.page-header {
  margin-bottom: var(--space-2xl);
}

.page-title {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
}

.page-subtitle {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

/* Flex utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* Spacing utilities */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

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

.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-normal { font-weight: 400; }
.font-light { font-weight: 300; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.text-warning { color: var(--color-warning); }

/* Display utilities */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }

/* Responsive */
@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.5rem; }

  .page-title { font-size: 2rem; }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 var(--space-lg);
  }
}

@media (max-width: 640px) {
  h1 { font-size: clamp(2.125rem, 8vw, 2.75rem); }
  h2 { font-size: clamp(1.75rem, 6vw, 2.25rem); }
  h3 { font-size: clamp(1.375rem, 5vw, 1.875rem); }

  .page-title { font-size: 2rem; }

  .container {
    padding: 0 var(--space-md);
  }
}

/* Animations */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes rankChange {
  0%, 100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(-10px);
    background: var(--color-accent);
  }
}

.animate-slideUp {
  animation: slideUp 0.4s ease-out backwards;
}

.animate-fadeIn {
  animation: fadeIn 0.3s ease-out;
}

/* Stagger children */
.stagger > * {
  animation: slideUp 0.4s ease-out backwards;
}

.stagger > *:nth-child(1) { animation-delay: 0.05s; }
.stagger > *:nth-child(2) { animation-delay: 0.1s; }
.stagger > *:nth-child(3) { animation-delay: 0.15s; }
.stagger > *:nth-child(4) { animation-delay: 0.2s; }
.stagger > *:nth-child(5) { animation-delay: 0.25s; }
.stagger > *:nth-child(6) { animation-delay: 0.3s; }