* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: var(--line-height-tight);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
}

p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.grid {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.flex {
  display: flex;
}

.flex-between {
  justify-content: space-between;
  align-items: center;
}

.flex-center {
  justify-content: center;
  align-items: center;
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

header {
  padding: var(--spacing-lg) 0;
  margin-bottom: var(--spacing-xl);
}

footer {
  padding: var(--spacing-xl);
  text-align: center;
}