:root {
  --text: hsl(0, 0%, 99%);
  --textDim: hsl(0, 0%, 60%);
  --background: hsl(0, 0%, 7%);
  --surface: hsl(0, 0%, 11%);
  --border: hsl(0, 0%, 18%);
  --primary: hsl(155, 100%, 65%);
  --primaryFg: hsl(155, 100%, 85%);
  --primaryHi: hsla(155, 100%, 75%, 25%);
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: var(--primary);
}

.site-header {
  padding: 1.25rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--border);
  background: hsl(0, 0%, 9%);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--textDim);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.back-link:hover {
  color: var(--primary);
}

.site-header h1 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-header .lead {
  margin: 0.35rem 0 0;
  color: var(--textDim);
  font-size: 0.95rem;
}

.controls {
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.search-wrap {
  max-width: 28rem;
}

.search-wrap input {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.search-wrap input::placeholder {
  color: var(--textDim);
}

.search-wrap input:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

.tabs button {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--textDim);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.tabs button:hover {
  color: var(--text);
  border-color: var(--textDim);
}

.tabs button[aria-selected="true"] {
  background: var(--primaryHi);
  border-color: var(--primary);
  color: var(--primaryFg);
}

.meta-bar {
  padding: 0  clamp(1rem, 4vw, 2.5rem) 0.5rem;
  font-size: 0.85rem;
  color: var(--textDim);
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  padding: 0 clamp(1rem, 4vw, 2.5rem) 2rem;
}

.card {
  display: flex;
  flex-direction: column;
  padding: 1.1rem 1.15rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
  min-height: 10rem;
}

.card:hover {
  border-color: hsla(155, 100%, 65%, 0.45);
  transform: translateY(-2px);
}

.card:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
}

.card p,
.card .card-desc {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--textDim);
  flex: 1;
}

.card .card-url {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--primary);
  word-break: break-all;
  opacity: 0.85;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 1rem;
  color: var(--textDim);
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0 clamp(1rem, 4vw, 2.5rem) 3rem;
}

.pagination button {
  font: inherit;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.pagination button:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primaryFg);
}

.pagination button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.pagination button[aria-current="page"] {
  background: var(--primaryHi);
  border-color: var(--primary);
  color: var(--primaryFg);
}

.pagination .ellipsis {
  padding: 0 0.25rem;
  color: var(--textDim);
  user-select: none;
}

.site-footer {
  padding: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--textDim);
  border-top: 1px solid var(--border);
}