/* ========================================
   Base Tokens & Reset
   ======================================== */
:root {
  color-scheme: light;
  --c-bg: #ffffff;
  --c-fg: #000000;
  --c-accent: #000000;
  --border: 2px;
  --gutter: 12px;
  --maxw: 1200px;
  --rail-width: 180px;
  --font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --transition-speed: 220ms;
  --pattern-rotation: 0deg;
}

html.theme--inverted {
  --c-bg: #000000;
  --c-fg: #ffffff;
  --c-accent: #ffffff;
}

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

html, body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.9rem + 0.2vw, 1.125rem);
  line-height: 1.4;
  background-color: var(--c-bg);
  color: var(--c-fg);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

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

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 0.12em;
  text-decoration-color: currentColor;
  text-underline-offset: 0.18em;
}

a:hover,
a:focus-visible {
  text-decoration-style: double;
}

button {
  font: inherit;
  color: inherit;
  background: transparent;
  border: var(--border) solid currentColor;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
}

button:focus-visible,
a:focus-visible {
  outline: var(--border) solid var(--c-accent);
  outline-offset: 2px;
}

:where(h1, h2, h3, h4, h5, h6) {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0;
}

h1 {
  font-size: clamp(3rem, 8vw, 8rem);
  line-height: 0.9;
}

p {
  margin: 0;
}

ul[class] {
  list-style: none;
  margin: 0;
  padding: 0;
}

.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  transform: translateY(-150%);
  background-color: var(--c-fg);
  color: var(--c-bg);
  padding: 0.6rem 1rem;
  border: var(--border) solid var(--c-bg);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: transform 140ms ease;
  z-index: 1000;
}

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

.page-shell {
  display: flex;
  min-height: calc((var(--vh, 1vh) * 100) - 72px);
}

.footer {
  border-top: var(--border) solid var(--c-fg);
  background-color: var(--c-bg);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem var(--gutter);
  max-width: calc(var(--maxw) + var(--rail-width));
  margin: 0 auto;
  font-size: 0.9rem;
}

.footer__list {
  display: flex;
  gap: 1.5rem;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer__copy {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

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

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark light;
  }
}

html.theme--inverted body {
  color-scheme: dark;
}