/* Resets and base typography shared by every page. */

/* The [hidden] attribute must always win over a class that sets its own
   display (e.g. a `.card.is-flex-when-shown { display:flex }` pattern) —
   several converted pages hit this bug independently before this rule
   existed. Keep it here instead of repeating it per page. */
[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

/* Browsers' default placeholder gray falls under WCAG AA against our dark
   input backgrounds; --muted is tuned to clear 4.5:1 there. */
::placeholder {
  color: var(--muted);
  opacity: 1;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  transform: translateY(-120%);
  padding: 12px 20px;
  background: var(--ink);
  color: var(--bg);
  font: 600 14px var(--font-text);
  text-decoration: none;
  border-radius: 0 0 10px 0;
  transition: transform 0.15s ease;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-text);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: clip;
  transition: background 0.4s, color 0.4s;
}

/*Ambient background*/
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(42vw 42vw at 12% 8%, color-mix(in srgb, var(--brand) 9%, transparent), transparent 60%),
    radial-gradient(38vw 38vw at 88% 28%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%),
    radial-gradient(46vw 46vw at 30% 92%, color-mix(in srgb, var(--brand) 7%, transparent), transparent 60%);
  mix-blend-mode: multiply;
  animation: ambient-drift 32s ease-in-out infinite alternate;
}

:root[data-theme='dark'] body::before {
  background:
    radial-gradient(42vw 42vw at 12% 8%, color-mix(in srgb, var(--brand) 16%, transparent), transparent 60%),
    radial-gradient(38vw 38vw at 88% 28%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    radial-gradient(46vw 46vw at 30% 92%, color-mix(in srgb, var(--brand) 10%, transparent), transparent 60%);
  mix-blend-mode: normal;
}

@keyframes ambient-drift {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-1.5%, 2%, 0) scale(1.06); }
  100% { transform: translate3d(2%, -1.5%, 0) scale(1.02); }
}

html.is-reduced-motion body::before {
  animation: none;
}

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

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

a:hover {
  color: var(--brand);
}

::selection {
  background: #C8F169;
  color: #0D1F1B;
}

summary::-webkit-details-marker {
  display: none;
}

:focus-visible {
  outline: 2px solid #43C4A2;
  outline-offset: 3px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

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

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

.wrap {
  max-width: 1320px;
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 48px);
  padding-right: clamp(16px, 4vw, 48px);
}

/* Scroll-reveal: see shared/js/reveal.js. Visible by default so content never
   depends on script timing to be readable; reveal.js opts specific
   below-the-fold elements INTO the hidden state via .reveal-pending, then
   clears it when they scroll into view. Respects reduced-motion. */
[data-reveal] {
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-reveal].reveal-pending {
  opacity: 0;
  transform: translateY(24px);
}

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

html.is-reduced-motion [data-reveal] {
  opacity: 1;
  transform: none;
  transition: none;
}