/**
 * FAST Design System v2 — Global base & layout utilities
 * Scope: .fast-site
 */

.fast-site *,
.fast-site *::before,
.fast-site *::after {
  box-sizing: border-box;
}

.fast-site {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--color-bg-base);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.fast-site.is-menu-open {
  overflow: hidden;
}

.fast-site img,
.fast-site svg {
  display: block;
  max-width: 100%;
}

.fast-site a {
  color: inherit;
  text-decoration: none;
}

.fast-site ul,
.fast-site ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.fast-site h1,
.fast-site h2,
.fast-site h3,
.fast-site h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text-primary);
}

.fast-site p {
  margin: 0;
}

.fast-site button,
.fast-site input,
.fast-site select,
.fast-site textarea {
  font: inherit;
  color: inherit;
}

/* Typography utilities */
.fast-display-xl {
  font-size: var(--text-display-xl);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
}

.fast-display-lg {
  font-size: var(--text-display-lg);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.fast-display-md {
  font-size: var(--text-display-md);
  line-height: 1.12;
  letter-spacing: var(--tracking-heading);
}

.fast-heading {
  font-size: var(--text-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.fast-body-lg {
  font-size: var(--text-body-lg);
  line-height: 1.7;
}

.fast-body-sm {
  font-size: var(--text-body-sm);
  line-height: var(--leading-body-sm);
}

.fast-caption {
  font-size: var(--text-caption);
  font-weight: 500;
  line-height: var(--leading-caption);
  color: var(--color-text-muted);
}

.fast-overline {
  font-size: var(--text-overline);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: var(--tracking-overline);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.fast-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* Layout */
.fast-container {
  width: min(var(--grid-max), calc(100% - var(--grid-gutter) * 2));
  margin-inline: auto;
}

.fast-section {
  padding-block: var(--section-padding-y);
}

.fast-section--raised {
  background: var(--color-bg-raised);
}

.fast-section--hero {
  padding-top: calc(var(--nav-height) + var(--space-10));
  background: var(--color-bg-base);
  background-image: var(--gradient-hero-ambient);
  background-repeat: no-repeat;
}

.fast-section--cta {
  background: var(--color-bg-base);
  background-image: var(--gradient-cta-glow);
  background-repeat: no-repeat;
  background-position: center bottom;
}

.fast-section-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 640px;
}

.fast-section-header--center {
  margin-inline: auto;
  text-align: center;
  align-items: center;
}

.fast-stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap-default);
}

.fast-stack--loose {
  gap: var(--stack-gap-loose);
}

.fast-stack--tight {
  gap: var(--stack-gap-tight);
}

.fast-grid {
  display: grid;
  gap: var(--space-6);
}

.fast-grid--12 {
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

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

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

.fast-col-5 {
  grid-column: span 5;
}

.fast-col-7 {
  grid-column: span 7;
}

.fast-col-4 {
  grid-column: span 4;
}

.fast-col-12 {
  grid-column: span 12;
}

@media (max-width: 1023px) {
  .fast-grid--12 > [class*="fast-col-"] {
    grid-column: span 12;
  }

  .fast-grid--3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .fast-grid--2 {
    grid-template-columns: 1fr;
  }
}

/* Reveal animation */
.fast-reveal {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.fast-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fast-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .fast-site *,
  .fast-site *::before,
  .fast-site *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}