@import url("https://fonts.googleapis.com/css2?family=Asimovian&family=Josefin+Sans:wght@300;400;600;700&display=swap");

:root {
  --paper: #f6f5ef;
  --ink: #050505;
  --muted: #65645f;
  --line: rgba(5, 5, 5, .24);
  --soft: #e8e4d7;
  --lime: #c7ff5c;
  --sky: #9edfff;
  --pink: #ff9abc;
  --clay: #ffb36a;
  --violet: #c9b6ff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(5,5,5,.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(5,5,5,.045) 1px, transparent 1px),
    var(--paper);
  background-size: 72px 72px;
  color: var(--ink);
  font-family: "Josefin Sans", Arial, sans-serif;
}

a { color: inherit; }

.topbar {
  min-height: 72px;
  border-bottom: 1px solid var(--ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(246, 245, 239, .94);
  backdrop-filter: blur(16px);
}

.brand,
h1,
h2,
h3 {
  font-family: "Asimovian", Impact, sans-serif;
  letter-spacing: 0;
}

.brand {
  font-size: 22px;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

nav a,
.eyebrow,
.button,
.chip,
.meta,
.open-link,
.shortlist-button {
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
}

nav a { text-decoration: none; }

main { padding: 28px; }

.hero {
  min-height: calc(100vh - 118px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  gap: 28px;
  align-items: end;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 28px;
}

h1 {
  font-size: clamp(58px, 13vw, 176px);
  line-height: .8;
  margin: 0 0 20px;
  max-width: 1180px;
}

.intro {
  max-width: 860px;
  font-size: clamp(18px, 2vw, 25px);
  line-height: 1.35;
  color: #2a2a27;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button,
.open-link,
.shortlist-button {
  min-height: 44px;
  border: 1px solid var(--ink);
  background: transparent;
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  cursor: pointer;
  font-family: inherit;
}

.button.primary,
.open-link:hover,
.shortlist-button:hover,
.chip.active {
  background: var(--ink);
  color: var(--paper);
}

.signal-panel {
  border: 1px solid var(--ink);
  min-height: 520px;
  display: grid;
  grid-template-rows: 1fr auto;
  background:
    radial-gradient(circle at 50% 42%, transparent 0 16%, var(--line) 16.2% 16.6%, transparent 16.8% 31%, var(--line) 31.2% 31.6%, transparent 31.8% 48%, var(--line) 48.2% 48.6%, transparent 48.8%),
    linear-gradient(120deg, rgba(199,255,92,.36), transparent 52%),
    linear-gradient(300deg, rgba(158,223,255,.35), transparent 48%),
    rgba(255,255,255,.16);
  overflow: hidden;
  position: relative;
}

.signal-panel::before {
  content: "";
  position: absolute;
  width: 86%;
  aspect-ratio: 1;
  top: 7%;
  left: 7%;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(5,5,5,.18), transparent 24%, transparent);
  animation: sweep 9s linear infinite;
}

@keyframes sweep { to { transform: rotate(360deg); } }

.signal-ring {
  position: relative;
  z-index: 1;
  place-self: center;
  width: min(68%, 300px);
  aspect-ratio: 1;
  border: 1px solid var(--ink);
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  background: rgba(246,245,239,.8);
}

.signal-ring span {
  display: block;
  font-family: "Asimovian", Impact, sans-serif;
  font-size: 96px;
  line-height: .9;
}

.signal-ring small {
  display: block;
  text-transform: uppercase;
  font-weight: 700;
  font-size: 12px;
}

.signal-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
  background: rgba(246,245,239,.86);
}

.signal-stats p {
  margin: 0;
  padding: 14px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.control-band {
  margin-top: 28px;
  border: 1px solid var(--ink);
  background: rgba(246,245,239,.94);
  display: grid;
  grid-template-columns: minmax(260px, .9fr) repeat(3, minmax(0, 1fr));
}

.search-box,
.filter-group {
  padding: 18px;
  border-right: 1px solid var(--ink);
}

.search-box span,
.filter-group > span {
  display: block;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 10px;
}

input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  padding: 0 12px;
  font: inherit;
}

.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  min-height: 34px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--paper);
  padding: 0 10px;
  cursor: pointer;
  font-family: inherit;
}

.matrix-section,
.all-section,
.shortlist-section {
  padding-top: 54px;
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading.row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

h2 {
  font-size: clamp(42px, 7vw, 104px);
  line-height: .86;
  margin: 0;
}

.section-note,
.result-count {
  color: var(--muted);
  line-height: 1.45;
}

.matrix {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}

.matrix-card {
  min-height: 260px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 18px;
  background: rgba(255,255,255,.14);
}

.matrix-card h3 {
  font-size: 34px;
  line-height: .92;
  margin: 10px 0;
}

.matrix-card p {
  line-height: 1.42;
}

.prototype-grid,
.shortlist-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}

.prototype-card {
  min-height: 500px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 22px;
  background: rgba(255,255,255,.17);
  display: grid;
  gap: 18px;
  align-content: space-between;
  position: relative;
  overflow: hidden;
}

.prototype-card::before {
  content: attr(data-icon);
  position: absolute;
  right: 16px;
  top: 12px;
  font-family: "Asimovian", Impact, sans-serif;
  font-size: 90px;
  line-height: 1;
  color: rgba(5,5,5,.08);
}

.prototype-card[data-color="lime"] { background: linear-gradient(145deg, rgba(199,255,92,.24), rgba(255,255,255,.1)); }
.prototype-card[data-color="sky"] { background: linear-gradient(145deg, rgba(158,223,255,.28), rgba(255,255,255,.1)); }
.prototype-card[data-color="pink"] { background: linear-gradient(145deg, rgba(255,154,188,.24), rgba(255,255,255,.1)); }
.prototype-card[data-color="clay"] { background: linear-gradient(145deg, rgba(255,179,106,.28), rgba(255,255,255,.1)); }
.prototype-card[data-color="violet"] { background: linear-gradient(145deg, rgba(201,182,255,.27), rgba(255,255,255,.1)); }

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.pill {
  border: 1px solid var(--ink);
  border-radius: 999px;
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  background: rgba(246,245,239,.72);
}

.prototype-card h3 {
  font-size: clamp(34px, 4vw, 58px);
  line-height: .88;
  margin: 18px 0 12px;
  position: relative;
  z-index: 1;
}

.prototype-card p,
.prototype-card li {
  line-height: 1.42;
}

.prototype-card ul {
  padding-left: 18px;
}

.card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.shortlist-grid.empty {
  display: block;
  border: 1px solid var(--ink);
  padding: 22px;
  background: var(--soft);
}

@media (max-width: 1180px) {
  .hero,
  .control-band,
  .matrix,
  .prototype-grid,
  .shortlist-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .search-box {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 18px;
  }
  main { padding: 18px; }
  .hero,
  .control-band,
  .matrix,
  .prototype-grid,
  .shortlist-grid,
  .signal-stats {
    grid-template-columns: 1fr;
  }
  .signal-panel { min-height: 380px; }
  .section-heading.row {
    align-items: flex-start;
    flex-direction: column;
  }
}