/* The landing page and the 404 page, in the storm test's visual language: its fonts, its
   storm-blue header, its rounded cards. The fonts are the shared ones in assets/fonts/. */

@font-face {
  font-family: Inter;
  src: url("/assets/fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

@font-face {
  font-family: "Space Grotesk";
  src: url("/assets/fonts/SpaceGrotesk-Variable.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --storm: #13202E;
  --storm-ink: #F3F5F8;
  --sun: #FFC94D;
  --page: #EEF1F4;
  --ink: #13202E;
  --muted: #3B4858;
  --card: #FFFFFF;
  --line: #D5DCE3;
  --link: #2F5BD3;
  --focus: #2F5BD3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0D1620;
    --ink: #F3F5F8;
    --muted: #CBD3DC;
    --card: #1B2938;
    --line: #3B4858;
    --link: #BFD6FF;
    --focus: #FFC94D;
  }
}

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--page);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

/* The storm test's page width: 1100px, with at least 16px either side. */
.wrap {
  box-sizing: border-box;
  padding-left: max(16px, calc((100% - 1100px) / 2));
  padding-right: max(16px, calc((100% - 1100px) / 2));
}

/* The storm: the page's dark sky, with still rain streaks. */
.hero {
  background-color: var(--storm);
  background-image: repeating-linear-gradient(
    105deg,
    rgba(243, 245, 248, 0) 0 22px,
    rgba(243, 245, 248, 0.07) 22px 23px,
    rgba(243, 245, 248, 0) 23px 61px
  );
  color: var(--storm-ink);
  padding-top: max(40px, env(safe-area-inset-top, 0px));
  padding-bottom: 40px;
}

h1 {
  margin: 0;
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(40px, 9vw, 64px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.byline {
  margin: 8px 0 0;
  font-size: 18px;
  opacity: 0.9;
}

.hero a {
  color: var(--sun);
  font-weight: 700;
  text-underline-offset: 3px;
}

.hero a:hover {
  color: #FFFFFF;
}

main {
  padding-top: 32px;
  padding-bottom: 48px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* The whole card is one link target: the title's link stretches over it (.card h2 a::after),
   so the link's name is just the title, and the image keeps its own alt text. */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 1px 2px rgba(19, 32, 46, 0.08);
  transition: transform 0.15s, box-shadow 0.15s;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(19, 32, 46, 0.18);
}

.card:focus-within {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 640 / 427;
  object-fit: cover;
  background: var(--storm);
}

.card-body {
  padding: 16px 18px 20px;
}

.card h2 {
  margin: 0;
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
}

.card h2 a {
  color: var(--ink);
  text-decoration: none;
}

.card h2 a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.card h2 a:focus {
  outline: none;
}

.card:hover h2 a {
  color: var(--link);
}

.card p {
  margin: 8px 0 0;
  color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  .card {
    transition: none;
  }

  .card:hover {
    transform: none;
  }
}