:root {
  --bg: #0c1118;
  --bg2: #141c28;
  --line: #243044;
  --text: #e7edf6;
  --mute: #8b9bb0;
  --blue: #2f6fed;
  --blue2: #1a4fbf;
  --ok: #3dba7a;
  --warn: #e0b44e;
  --bad: #e25c5c;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
}

a {
  color: #9ec0ff;
}

.bar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 28px;
  border-bottom: 1px solid var(--line);
  background: #0a0f16;
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.brand strong {
  display: block;
  font-size: 15px;
}

.brand span {
  display: block;
  color: var(--mute);
  font-size: 12px;
}

nav {
  display: flex;
  gap: 16px;
  font-size: 13px;
}

nav a {
  color: var(--mute);
  text-decoration: none;
}

nav a:hover {
  color: var(--text);
}

.pill {
  margin-left: auto;
  font-size: 12px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  color: var(--mute);
}

.pill.ok {
  border-color: var(--ok);
  color: var(--ok);
}

.pill.warn {
  border-color: var(--warn);
  color: var(--warn);
}

.pill.bad {
  border-color: var(--bad);
  color: var(--bad);
}

.hero {
  padding: 48px 28px 28px;
  max-width: 920px;
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 11px;
  color: var(--blue);
  font-weight: 600;
}

h1 {
  font-size: 34px;
  line-height: 1.2;
  font-weight: 600;
  margin: 8px 0 14px;
}

.lead {
  color: var(--mute);
  font-size: 16px;
  max-width: 68ch;
}

.hero-meta {
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 12px;
  color: #b9c6d6;
  background: var(--bg2);
  border: 1px solid var(--line);
  padding: 10px 12px;
  display: inline-block;
}

.hops {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 0 28px 36px;
}

.hops article {
  background: var(--bg2);
  border: 1px solid var(--line);
  padding: 16px;
  min-height: 150px;
}

.hops span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--blue);
}

.hops h2 {
  font-size: 16px;
  margin: 8px 0;
}

.hops p {
  margin: 0;
  color: var(--mute);
  font-size: 13px;
}

.panel {
  margin: 0 28px 28px;
  padding: 22px;
  border: 1px solid var(--line);
  background: #101722;
}

.panel h2 {
  margin: 0 0 8px;
  font-size: 20px;
}

.panel-head p,
.panel > p {
  color: var(--mute);
  margin-top: 0;
}

.code {
  background: #0a1018;
  border: 1px solid var(--line);
  padding: 14px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  color: #d5e2f2;
  white-space: pre-wrap;
}

.code.small {
  font-size: 11px;
}

.fine {
  font-size: 13px;
}

.scenarios {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 8px;
}

.scenarios button {
  height: auto;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  background: #0a1018;
  color: var(--text);
  border: 1px solid var(--line);
}

.scenarios button:hover,
.scenarios button.active {
  border-color: var(--blue);
  background: #152238;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--mute);
}

.grow {
  flex: 1;
  min-width: 240px;
}

input,
select,
button {
  font: 14px var(--sans);
  background: #0a1018;
  color: var(--text);
  border: 1px solid var(--line);
  padding: 8px 10px;
}

button {
  background: var(--blue);
  border-color: var(--blue);
  font-weight: 600;
  cursor: pointer;
  height: 38px;
}

button.ghost {
  background: transparent;
  color: var(--text);
}

button:disabled {
  opacity: 0.5;
  cursor: wait;
}

.status {
  min-height: 1.4em;
  font-size: 13px;
  color: var(--mute);
}

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.compare article {
  border: 1px solid var(--line);
  padding: 14px;
  background: #0c141f;
}

.compare h3 {
  margin: 0 0 10px;
  font-size: 14px;
}

.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
  margin: 0 0 12px;
}

.metrics dt {
  font-size: 11px;
  color: var(--mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.metrics dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 18px;
}

.metrics.empty dd {
  color: var(--mute);
  font-size: 14px;
}

.answer {
  min-height: 72px;
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  white-space: pre-wrap;
  color: #c5d4e6;
}

.grid {
  width: 100%;
  border-collapse: collapse;
  margin-top: 18px;
  font-size: 12px;
  font-family: var(--mono);
}

.grid th,
.grid td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--line);
}

.grid th {
  color: var(--mute);
  font-weight: 500;
}

.clock-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.clock-grid article {
  background: #0c141f;
  border: 1px solid var(--line);
  padding: 14px;
}

.clock-grid h3 {
  margin: 0 0 8px;
}

.clock-grid p {
  color: var(--mute);
  font-size: 13px;
}

footer {
  padding: 20px 28px 40px;
  color: var(--mute);
  font-size: 13px;
}

@media (max-width: 900px) {
  .hops,
  .compare,
  .clock-grid {
    grid-template-columns: 1fr;
  }
  nav {
    display: none;
  }
}