/* ==========================================================================
   BASE: reset, typography, layout primitives, utilities
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 64px);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

body.is-locked {
  overflow: hidden;
}

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

img {
  height: auto;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
  margin: 0;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 400; /* display face carries its own weight */
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
}

h4 {
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: 0;
  padding: 0;
}

:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

::selection {
  background: var(--accent);
  color: var(--on-accent);
}

/* ---- Layout primitives ------------------------------------------------- */

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.section--tight-top {
  padding-top: 0;
}

/* ---- Text helpers ------------------------------------------------------ */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--primary);
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.mono {
  font-family: var(--font-mono);
  font-feature-settings: "zero" 1;
  direction: ltr;
  unicode-bidi: isolate;
}

/* ---- Utilities --------------------------------------------------------- */

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  inset-inline-start: var(--space-4);
  top: -100px;
  z-index: 1000;
  padding: var(--space-3) var(--space-5);
  background: var(--secondary);
  color: var(--on-secondary);
  border-radius: var(--radius);
  font-weight: var(--fw-semibold);
}

.skip-link:focus {
  top: var(--space-4);
}

.icon {
  width: 1.25em;
  height: 1.25em;
  flex-shrink: 0;
}

/* Tints: data-tint="blue|amber|green|red|teal|violet" sets --tint / --tint-soft
   for any child that uses them (icon chips, fact tiles, card accents). */
[data-tint="blue"] { --tint: var(--tint-blue); --tint-soft: var(--tint-blue-soft); }
[data-tint="amber"] { --tint: var(--tint-amber); --tint-soft: var(--tint-amber-soft); }
[data-tint="green"] { --tint: var(--tint-green); --tint-soft: var(--tint-green-soft); }
[data-tint="red"] { --tint: var(--tint-red); --tint-soft: var(--tint-red-soft); }
[data-tint="teal"] { --tint: var(--tint-teal); --tint-soft: var(--tint-teal-soft); }
[data-tint="violet"] { --tint: var(--tint-violet); --tint-soft: var(--tint-violet-soft); }

.tint-chip {
  display: inline-grid;
  place-items: center;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--tint-soft, var(--primary-soft));
  color: var(--tint, var(--primary));
}

.tint-chip .icon {
  width: 24px;
  height: 24px;
}

/* Product photos are cut-outs on white; multiply lets them sit on steel tiles. */
.blend-photo {
  mix-blend-mode: multiply;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}