/* Base & Reset Styles */

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

[data-mode="light"] html {
  color-scheme: light;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-ink);
  color: var(--color-fg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-fg);
}

.font-display {
  font-family: var(--font-display);
}

.font-mono {
  font-family: var(--font-mono);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  background: none;
  border: none;
  font-family: inherit;
  cursor: pointer;
  color: inherit;
}

ul, ol {
  list-style: none;
}

/* Containers */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

/* Subtle Background Patterns */
.bg-grid {
  background-image: 
    linear-gradient(to right, var(--color-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-line-soft) 1px, transparent 1px);
  background-size: var(--grid) var(--grid);
}

.bg-dots {
  background-image: radial-gradient(var(--color-line) 1px, transparent 1px);
  background-size: 24px 24px;
}

.bg-mesh {
  background: 
    radial-gradient(65% 55% at 15% 0%, rgba(124, 140, 255, 0.14), transparent 70%),
    radial-gradient(55% 45% at 85% 10%, rgba(0, 229, 199, 0.12), transparent 70%);
}

[data-mode="light"] .bg-mesh {
  background: 
    radial-gradient(65% 55% at 15% 0%, rgba(99, 102, 241, 0.08), transparent 70%),
    radial-gradient(55% 45% at 85% 10%, rgba(14, 165, 233, 0.08), transparent 70%);
}

/* Gradient Text Accent */
.grad-text {
  background: linear-gradient(100deg, var(--color-teal), var(--color-peri) 65%, var(--color-rose));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Rules / Separators */
.rule {
  background: linear-gradient(90deg, transparent, var(--color-line), transparent);
  height: 1px;
  width: 100%;
}

.tabnum {
  font-variant-numeric: tabular-nums;
}