:root {
  --paper: #efeee8;
  --ink: #080808;
  --blue: #2437ed;
  --muted: #66665e;
  --line: #adada4;
}

* { box-sizing: border-box; }

html { color-scheme: light; }

body {
  min-height: 100vh;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  display: flex;
  flex-direction: column;
  border-top: 4px solid var(--ink);
}

a { color: inherit; }

.site-header {
  min-height: 72px;
  padding: 16px clamp(22px, 5vw, 72px);
  border-top: 4px solid var(--ink);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font: 700 15px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-decoration: none;
}

.wordmark-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--blue);
  color: white;
  font-size: 17px;
}

.deck-count,
.eyebrow,
.deck-meta,
.deck-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.deck-count {
  color: var(--muted);
  font-size: 13px;
}

main {
  width: min(1180px, calc(100% - 44px));
  margin: 0 auto;
  flex: 1;
}

.intro {
  min-height: 430px;
  padding: clamp(62px, 8vw, 100px) 0 54px;
  border-bottom: 2px solid var(--ink);
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  gap: clamp(42px, 8vw, 110px);
  align-items: end;
}

.eyebrow {
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  margin: 0 0 16px;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(52px, 7vw, 86px);
  line-height: .96;
  letter-spacing: -.06em;
}

.positioning-list {
  list-style: none;
  margin: 0 0 5px;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.positioning-list li {
  position: relative;
  padding: 13px 0 13px 27px;
  border-bottom: 1px solid var(--line);
  font-size: 18px;
  font-weight: 650;
  line-height: 1.3;
}

.positioning-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--blue);
}

.catalog { padding: 34px 0 80px; }

.catalog-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
}

.catalog-heading h2 {
  margin: 0;
  font-size: clamp(27px, 4vw, 42px);
  line-height: 1;
  letter-spacing: -.04em;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 34px;
}

.deck-card {
  display: block;
  min-width: 0;
  border: 1px solid var(--ink);
  background: #f8f7f2;
  box-shadow: 8px 8px 0 var(--ink);
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.deck-card:hover,
.deck-card:focus-visible {
  transform: translate(-3px, -3px);
  box-shadow: 11px 11px 0 var(--blue);
}

.deck-card:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 5px;
}

.deck-cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 1px solid var(--ink);
  background: #deddd6;
}

.deck-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 220ms ease;
}

.deck-card:hover .deck-cover img { transform: scale(1.015); }

.deck-copy { padding: 22px 24px 25px; }

.deck-id {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  overflow-wrap: anywhere;
}

.deck-title {
  margin: 0;
  font-size: clamp(24px, 3vw, 35px);
  line-height: 1.06;
  letter-spacing: -.035em;
}

.deck-description {
  min-height: 3em;
  margin: 14px 0 22px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.deck-meta {
  padding-top: 15px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 12px;
  color: var(--muted);
}

.deck-open { color: var(--ink); font-weight: 700; }

footer {
  min-height: 70px;
  padding: 20px clamp(22px, 5vw, 72px);
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

footer a { text-underline-offset: 4px; }

@media (max-width: 760px) {
  main { width: min(100% - 28px, 1180px); }
  .intro {
    min-height: 0;
    padding: 54px 0 38px;
    grid-template-columns: 1fr;
    gap: 38px;
  }
  .positioning-list { margin-bottom: 0; }
  .catalog-heading .deck-count { display: none; }
  .catalog-grid { grid-template-columns: 1fr; }
  .deck-copy { padding: 19px 18px 22px; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}