:root {
  --bg: #f3f3f4;
  --panel: #ffffff;
  --panel2: #fafafa;
  --line: #d6d6d9;
  --line-strong: #c4c4c8;
  --text: #232327;
  --muted: #74747b;
  --accent: #e25b2a;
  --accent-dark: #bf4318;
  --good: #1f8f4e;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: #efefef;
}

.nav-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: #5a5a60;
  font-size: 0.88rem;
  padding: 6px 8px;
  border-bottom: 2px solid transparent;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.stack-button {
  text-decoration: none;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  background: var(--accent);
  border-radius: 6px;
  padding: 10px 14px;
}

.status-strip {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 22px;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
  background: #f7f7f8;
}

.status-strip span {
  color: var(--muted);
}

.site-shell {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px 22px 26px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  background: var(--panel);
  box-shadow: 0 1px 0 #fff inset;
}

.landing-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.landing-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

h1 {
  margin: 4px 0 6px;
  font-size: 2rem;
  line-height: 1.1;
}

.subtitle {
  color: var(--muted);
  margin: 0;
}

.cta-button {
  display: inline-block;
  border-radius: 6px;
  padding: 10px 14px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  background: var(--accent);
}

.rank-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 10px;
}

.rank-metrics article {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: var(--panel2);
}

.rank-metrics span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.rank-metrics strong {
  font-size: 1.45rem;
}

.leaderboard-shell {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  overflow: auto;
  max-height: 430px;
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
}

.leaderboard-table th,
.leaderboard-table td {
  text-align: left;
  padding: 10px 10px;
  border-bottom: 1px solid #ececee;
  font-size: 0.9rem;
}

.leaderboard-table th {
  color: #66666c;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: #f7f7f8;
  position: sticky;
  top: 0;
  z-index: 1;
}

.table-empty {
  text-align: center;
  color: var(--muted);
  padding: 14px;
}

.lb-toolbar {
  display: grid;
  grid-template-columns: minmax(180px, 1.2fr) minmax(130px, 1fr) repeat(2, minmax(110px, 0.8fr)) auto;
  gap: 8px;
}

.lb-toolbar input,
.lb-toolbar select {
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--text);
  padding: 7px 8px;
  font-size: 0.85rem;
}

.lb-toolbar button {
  padding: 8px 10px;
  font-size: 0.82rem;
}

.category-avg-grid,
.run-category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 8px;
}

.category-avg-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  background: #fafafa;
}

.category-avg-item span {
  display: block;
  color: var(--muted);
  font-size: 0.74rem;
}

.category-avg-item strong {
  font-size: 1rem;
}

.benchmark-panel {
  padding: 0;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) 320px;
  gap: 14px;
}

.left-panel h2 {
  margin: 0 0 8px;
}

.left-panel > .card,
.viz-panel {
  margin-bottom: 10px;
}

.disabled {
  opacity: 0.56;
  pointer-events: none;
}

label {
  display: block;
  margin-bottom: 10px;
  font-size: 0.9rem;
}

input {
  width: 100%;
  margin-top: 6px;
  border-radius: 7px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--text);
  padding: 8px 9px;
}

button {
  border: 0;
  border-radius: 6px;
  padding: 10px 13px;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  cursor: pointer;
}

button:hover,
.cta-button:hover,
.stack-button:hover {
  background: var(--accent-dark);
}

.help,
.legend,
.status {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.35;
}

.log-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  max-height: 210px;
  overflow: auto;
}

.log-list li {
  border-left: 2px solid #d0d0d4;
  margin: 6px 0;
  padding: 6px 8px;
  background: #fafafa;
  border-radius: 6px;
  color: #4a4a51;
}

.viz-panel {
  position: sticky;
  top: 10px;
  align-self: start;
}

#graph {
  width: 100%;
  height: 210px;
  border-radius: 8px;
  background: #f8f8f9;
  border: 1px solid var(--line);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(80px, 1fr));
  gap: 7px;
  margin-top: 8px;
}

.metric-grid div {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 7px;
  background: #fafafa;
}

.metric-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.metric-grid strong {
  font-size: 0.96rem;
  color: var(--good);
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .viz-panel {
    position: static;
  }

  #graph {
    height: 190px;
  }

  .lb-toolbar {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 740px) {
  .top-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .rank-metrics,
  .category-avg-grid,
  .run-category-grid {
    grid-template-columns: 1fr;
  }
}