:root {
  color-scheme: light dark;

  --bg: light-dark(#f7f8fa, #16181d);
  --surface: light-dark(#ffffff, #1f232b);
  --surface-2: light-dark(#eef0f4, #262b34);
  --text: light-dark(#1a1d23, #e7e9ee);
  --text-dim: light-dark(#5b6270, #9aa3b2);
  --border: light-dark(#dfe3ea, #333a45);
  --accent: light-dark(#1a73e8, #6aa8ff);

  --baseline-widely: light-dark(#1e8e3e, #5bd07e);
  --baseline-newly: light-dark(#1a73e8, #6aa8ff);
  --baseline-limited: light-dark(#9aa0a6, #8b94a3);

  --radius: 10px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.06), 0 4px 16px rgb(0 0 0 / 0.06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: 1100px;
  margin-inline: auto;
  padding: clamp(1rem, 3vw, 2.5rem);
}

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

/* --- Header / search --------------------------------------------------- */
header {
  margin-block: clamp(1rem, 4vw, 3rem) clamp(1.5rem, 3vw, 2.5rem);
}

header h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 0.25rem;
}

header p {
  color: var(--text-dim);
  margin: 0;
  max-width: 60ch;
}

.search {
  margin-top: 1.25rem;
}

.search input {
  width: 100%;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  padding: 0.7em 0.9em;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
}

.search input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* --- Result hero ------------------------------------------------------- */
.hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1.25rem, 3vw, 2rem);
  margin-bottom: 2rem;
}

.requires {
  margin: 0 0 1rem;
  color: var(--text-dim);
  font-size: 0.95rem;
}

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

.headline {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
}

.headline .pct {
  font-size: clamp(2.5rem, 9vw, 5rem);
  font-weight: 800;
  line-height: 1;
}

.headline .pct-label {
  color: var(--text-dim);
  max-width: 32ch;
}

.headline .pct-label strong {
  color: var(--text);
}

.unusable {
  margin: 0.75rem 0 1.25rem;
  color: var(--text-dim);
}

/* --- Baseline chips ---------------------------------------------------- */
.baseline {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.3em 0.7em;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--surface-2);
  white-space: nowrap;
}

.baseline::before {
  content: "";
  width: 0.7em;
  height: 0.7em;
  border-radius: 50%;
  background: var(--baseline-limited);
}

.baseline.widely::before { background: var(--baseline-widely); }
.baseline.newly::before { background: var(--baseline-newly); }
.baseline.limited::before { background: var(--baseline-limited); }

.baseline-big {
  font-size: 1rem;
  padding: 0.45em 0.9em;
  white-space: normal;
}

.baseline .date {
  font-weight: 400;
  color: var(--text-dim);
}

/* --- Charts / tables --------------------------------------------------- */
.charts {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
  container-type: inline-size;
}

@container (min-width: 640px) {
  .charts {
    grid-template-columns: 1fr 1fr;
  }
}

.charts h2 {
  font-size: 1.15rem;
  margin: 0 0 0.25rem;
}

.charts p {
  margin: 0 0 0.75rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th,
td {
  text-align: left;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--border);
}

th {
  text-transform: capitalize;
  color: var(--text-dim);
  font-weight: 600;
}

td.num,
th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

section {
  margin-bottom: 2.5rem;
}

section > h2 {
  font-size: 1.4rem;
}

/* --- Feature grid ------------------------------------------------------ */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0 1.25rem;
}

.filters button {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.35em 0.8em;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.filters button[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.feature-grid li {
  margin: 0;
}

.feature-grid input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.feature-grid label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  height: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--chip, var(--surface));
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.feature-grid label:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.feature-grid input:checked + label {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  font-weight: 600;
}

.feature-grid input:focus-visible + label {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.feature-grid .dot {
  flex: none;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--baseline-limited);
}

.feature-grid .dot.widely { background: var(--baseline-widely); }
.feature-grid .dot.newly { background: var(--baseline-newly); }
.feature-grid .dot.limited { background: var(--baseline-limited); }

.feature-grid .name {
  flex: 1;
  min-width: 0;
}

.feature-grid .pct {
  flex: none;
  font-size: 0.8rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

/* Used-feature chips in the hero */
.requires .chip,
.free-list .chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.requires button.chip {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.3em 0.7em;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--accent);
  color: white;
  cursor: pointer;
}

.requires button.chip::after {
  content: "✕";
  font-size: 0.75em;
  opacity: 0.8;
}

.free-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.4rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.free-list li {
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.muted {
  color: var(--text-dim);
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.9rem;
}