:root {
  --ink: #101010;
  --paper: #f8f6ef;
  --accent-yellow: #ffe75e;
  --accent-blue: #41b0ff;
  --accent-green: #51e596;
  --accent-red: #ff7969;
  --panel: #fff;
  --shadow: 7px 7px 0 var(--ink);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.45;
  min-height: 100vh;
  position: relative;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(16, 16, 16, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 16, 16, 0.08) 1px, transparent 1px),
    radial-gradient(circle at 12% 14%, #fff3a8 0%, transparent 40%),
    radial-gradient(circle at 88% 16%, #9ed4ff 0%, transparent 37%),
    radial-gradient(circle at 40% 85%, #a8ffd0 0%, transparent 36%),
    var(--paper);
  background-size: 30px 30px, 30px 30px, auto, auto, auto, auto;
}

.shell {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.hero {
  padding: 3rem 0 1.75rem;
}

.badge {
  display: inline-block;
  padding: 0.45rem 0.8rem;
  border: 3px solid var(--ink);
  border-radius: 999px;
  background: var(--accent-yellow);
  font-weight: 700;
}

h1 {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(2rem, 6vw, 5rem);
  margin: 0.75rem 0 0.1rem;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

.subhead {
  max-width: 750px;
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  margin: 0 0 1.25rem;
}

.stats {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}

.stat {
  border: 3px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--panel);
  padding: 0.7rem 0.85rem;
}

.stat strong {
  display: block;
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.3rem;
}

.stat span {
  font-size: 0.9rem;
}

.panel {
  border: 3px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--panel);
}

.controls {
  padding: 1rem;
  display: grid;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.control-block span {
  display: block;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

#searchInput {
  width: 100%;
  border: 3px solid var(--ink);
  background: #fff;
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
  font: inherit;
  outline: none;
}

#searchInput:focus {
  background: #fffeea;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  font: inherit;
  font-weight: 700;
  border: 3px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  padding: 0.35rem 0.8rem;
  cursor: pointer;
  transition: transform 0.12s ease;
}

.chip:hover {
  transform: translate(-1px, -1px);
}

.chip.active {
  background: var(--accent-blue);
}

.results-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.8rem;
}

.results-head h2 {
  margin: 0;
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(1.3rem, 3vw, 1.9rem);
}

.results-head p {
  margin: 0;
  font-weight: 700;
}

.resource-grid {
  display: grid;
  gap: 0.95rem;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  margin-top: 0.85rem;
  padding-bottom: 2rem;
}

.card {
  border: 3px solid var(--ink);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  animation: card-in 280ms ease both;
}

.card:nth-child(4n + 1) {
  background: #fff8c8;
}

.card:nth-child(4n + 2) {
  background: #dbf1ff;
}

.card:nth-child(4n + 3) {
  background: #ddffe9;
}

.card:nth-child(4n + 4) {
  background: #ffe2dd;
}

.meta {
  margin: 0;
  font-weight: 700;
  font-size: 0.84rem;
}

h3 {
  margin: 0.25rem 0 0;
  font-size: 1.06rem;
  line-height: 1.3;
}

.tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tags li {
  border: 2px solid var(--ink);
  border-radius: 999px;
  padding: 0.15rem 0.45rem;
  font-size: 0.78rem;
  font-weight: 700;
  background: #fff;
}

.visit {
  margin-top: auto;
  display: inline-block;
  width: fit-content;
  text-decoration: none;
  color: var(--ink);
  border: 3px solid var(--ink);
  border-radius: 9px;
  background: var(--accent-yellow);
  font-weight: 700;
  padding: 0.45rem 0.65rem;
}

.visit:hover {
  background: var(--accent-green);
}

.empty {
  margin-bottom: 2rem;
  padding: 1rem;
}

.empty h3,
.empty p {
  margin: 0;
}

.hidden {
  display: none;
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 2rem;
  }

  .results-head {
    flex-direction: column;
    align-items: flex-start;
  }
}