:root {
  color-scheme: dark;
  --navy: #10182b;
  --panel: #18233a;
  --ink: #f7f1df;
  --muted: #c9bea3;
  --gold: #f4c542;
  --gold-ink: #2a1d08;
  --pop: #e23d3d;
  --line: #31405f;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 12% 0%, #2a3d22 0%, transparent 28%),
    linear-gradient(180deg, #0c1220 0%, var(--navy) 100%);
  color: var(--ink);
  font: 16px/1.45 "Trebuchet MS", "Avenir Next", sans-serif;
}

.app {
  width: min(1100px, calc(100vw - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 6rem;
}

.top {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr auto;
  align-items: start;
}

.eyebrow {
  margin: 0 0 0.4rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  font-size: 0.75rem;
}

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  letter-spacing: -0.03em;
}

.lede {
  margin: 0.7rem 0 0;
  max-width: 38rem;
  color: var(--muted);
}

.status {
  border: 2px solid var(--line);
  background: var(--panel);
  border-radius: 1rem;
  padding: 0.85rem 1rem;
  max-width: 18rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.tabs {
  display: flex;
  gap: 0.6rem;
  margin: 1.4rem 0 1rem;
}

.tab,
.lab-actions button,
.mod-card button,
.detail button {
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.tab {
  background: transparent;
  color: var(--muted);
  padding: 0.45rem 0.85rem;
  border-bottom: 3px solid transparent;
}

.tab.is-on {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.panel {
  display: none;
}

.panel.is-on {
  display: block;
}

#browse.panel.is-on {
  display: grid;
  grid-template-columns: minmax(16rem, 22rem) 1fr;
  gap: 1rem;
}

.catalog,
.detail,
.lab-shell {
  background: color-mix(in srgb, var(--panel) 92%, black);
  border: 2px solid var(--line);
  border-radius: 1.1rem;
}

.catalog {
  display: grid;
  align-content: start;
  gap: 0.7rem;
  padding: 0.8rem;
}

.mod-card {
  text-align: left;
  background: #121b30;
  color: inherit;
  border-radius: 0.9rem;
  padding: 0.8rem;
  border: 2px solid transparent;
}

.mod-card.is-selected {
  border-color: var(--gold);
}

.mod-card h2 {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
}

.mod-card p,
.detail p,
.hint,
.empty {
  margin: 0;
  color: var(--muted);
}

.tag {
  display: inline-block;
  margin-top: 0.45rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: #2b2230;
  color: var(--gold);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.detail {
  padding: 1.2rem 1.3rem;
}

.detail h2 {
  margin: 0 0 0.4rem;
}

.detail button,
.lab-actions button {
  margin-top: 1rem;
  background: var(--gold);
  color: var(--gold-ink);
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
}

.detail button.is-off,
.lab-actions button.is-off {
  background: #3b2a2a;
  color: #f2c9c9;
}

.lab-shell {
  padding: 0.8rem;
}

.lab-hud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 0.6rem;
  font-weight: 800;
}

.radar {
  color: var(--gold);
}

#track {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 0.8rem;
  background: #1b3a24;
}

.lab-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.hint {
  margin-top: 0.75rem;
  font-size: 0.92rem;
}

.mods-fab {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  width: 7.4rem;
  height: 3.2rem;
  border: 0;
  border-radius: 1rem;
  background: var(--gold);
  color: var(--gold-ink);
  font: 800 1.2rem/1 "Trebuchet MS", sans-serif;
  letter-spacing: 0.08em;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
  cursor: pointer;
}

@media (max-width: 800px) {
  .top,
  #browse.panel.is-on {
    grid-template-columns: 1fr;
  }
}