/* ==========================================================================
   base.css — reset, body, and foundational element styles
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition:
    background var(--transition-slow),
    color var(--transition-slow);
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

/* --- Grain overlay (fixed, pointer-events none) --- */
.grain {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  opacity: var(--grain-opacity);
  transition: opacity var(--transition-slow);
}

/* --- Ambient glow (top-right) --- */
.glow {
  position: fixed;
  width: 500px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(196, 114, 74, var(--glow-opacity)) 0%,
    transparent 70%
  );
  top: -120px;
  right: -100px;
  pointer-events: none;
  z-index: 0;
  transition: opacity var(--transition-slow);
}

/* --- Layout container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  position: relative;
  z-index: 2;
}

/* --- Divider --- */
.divider {
  height: 1px;
  background: var(--color-divider);
  margin: 0 var(--container-pad);
  position: relative;
  z-index: 2;
}

/* --- Section label (eyebrow text) --- */
.section-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

/* --- Screen-reader only --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Accessibility — keyboard focus & reduced motion
   ========================================================================== */

/* Visible focus ring for keyboard users only (not on mouse click). */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Respect users who prefer reduced motion (WCAG 2.3.3 / vestibular safety). */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}