/* Shared by every page: reset, document, header, footer, and the reusable pieces.
   Page-specific rules live in landing.css, leaderboard.css, tire.css, methodology.css. */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--ground);
  background-image: var(--grain);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  flex: 1;
}

h1,
h2,
h3,
p,
ol,
ul,
dl,
dd,
figure {
  margin: 0;
  padding: 0;
}

ol,
ul {
  list-style: none;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

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

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -4rem;
  z-index: 10;
  padding: 0.5rem 0.75rem;
  background: var(--ink);
  color: var(--ground);
  font-family: var(--font-data);
  font-size: 0.8125rem;
}
.skip-link:focus {
  top: 0.5rem;
}

/* --- reusable pieces --------------------------------------------------- */

/* Metallic gradient text: wordmarks and large numerals only. */
.metal,
.metal-diagonal {
  color: var(--metal-3); /* fallback when background-clip is unsupported */
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.metal {
  background-image: var(--metal-vertical);
  filter: var(--metal-shadow);
  letter-spacing: -0.05em;
}
.metal-diagonal {
  background-image: var(--metal-diagonal);
}

/* JetBrains Mono for labels and data. */
.data {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
}
.label {
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* Confidence chip, shown on every leaderboard row and on the tire page. */
.band {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border: 1px solid currentColor;
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}
.band--high {
  background: var(--band-high-bg);
  color: var(--band-high-fg);
  border-color: var(--band-high-bg);
}
.band--medium {
  color: var(--band-medium);
}
.band--low,
.band--none {
  color: var(--band-low);
  border-style: dashed;
}

/* Switches made of links (no JavaScript): unit, sort, low-confidence. */
.switch {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.switch__label {
  color: var(--ink-soft);
}
.switch__option {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem; /* 44 px tap target */
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--line-strong);
  text-decoration: none;
}
.switch__option[aria-current="true"] {
  background: var(--ink);
  color: var(--ground);
}
.switch__option:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.switch__option[aria-current="true"]:hover {
  color: var(--ground);
  background: var(--accent);
}

/* --- chrome ------------------------------------------------------------ */

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding: 1rem var(--gutter);
  border-bottom: 1px solid var(--line);
}

.site-header__wordmark {
  font-weight: 900;
  font-size: 1.125rem;
  letter-spacing: -0.03em;
  text-decoration: none;
  color: var(--metal-3);
}
.site-header__wordmark span {
  font-weight: 800;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.site-nav__link {
  padding: 0.25rem 0;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}
.site-nav__link:hover {
  color: var(--accent);
}
.site-nav__link[aria-current="page"] {
  border-bottom-color: var(--accent);
}

/* The PitBox mark, top right (rendered only when the mark and the App Store address exist). */
.site-header:has(.site-header__pitbox) {
  align-items: center;
}
.site-header:has(.site-header__pitbox) .site-nav {
  margin-left: auto;
}
.site-header__pitbox {
  display: inline-flex;
  flex: none;
}
.site-header__pitbox picture {
  display: contents;
}
.site-header__pitbox img {
  display: block;
  width: 1.75rem;
  height: 1.75rem;
}
/* Narrow screens: the mark stays top right, next to the wordmark; the navigation wraps below both. */
@media (max-width: 40rem) {
  .site-header__pitbox {
    order: 1;
    margin-left: auto;
  }
  .site-header:has(.site-header__pitbox) .site-nav {
    order: 2;
    flex-basis: 100%;
    margin-left: 0;
  }
}

.seed-notice {
  padding: 0.5rem var(--gutter);
  background: var(--accent-wash);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}
.seed-notice strong {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.25rem 1.5rem;
  padding: 1.25rem var(--gutter);
  border-top: 1px solid var(--line);
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.not-found {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 4rem var(--gutter);
}
.not-found h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.not-found p {
  margin-bottom: 0.75rem;
}

@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;
  }
}

/* "No data yet": a page that has nothing to list (src/pages/no-data.ts). */
.no-data {
  display: grid;
  justify-items: start;
  gap: 0.75rem;
  max-width: var(--measure);
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--line-strong);
}
.no-data__title {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}
.no-data__text {
  max-width: 40rem;
  color: var(--ink-soft);
}
.no-data__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.no-data__submit {
  padding: 0.625rem 1rem;
  background: var(--ink);
  color: var(--on-ink);
  text-decoration: none;
}
.no-data__submit:hover {
  background: var(--accent);
}