:root {
  color-scheme: dark;
  --ink: #0b0f0e;
  --panel: rgba(17, 23, 22, 0.94);
  --panel-2: rgba(238, 246, 225, 0.07);
  --line: rgba(238, 246, 225, 0.16);
  --paper: #eff6df;
  --paper-2: #cbd5c6;
  --muted: #8d978f;
  --lime: #b7ff52;
  --cyan: #58dccd;
  --coral: #ff7c66;
  --amber: #ffc75d;
  --violet: #a99cff;
  --shadow: rgba(0, 0, 0, 0.42);
  --font-display: "IBM Plex Sans", "Avenir Next", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(120deg, rgba(88, 220, 205, 0.08), transparent 36%),
    linear-gradient(0deg, rgba(255, 124, 102, 0.08), transparent 34%),
    var(--ink);
  color: var(--paper);
  font-family: var(--font-display);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
select,
input {
  font: inherit;
}

.life-roi-shell {
  min-height: 100vh;
  padding: 18px clamp(12px, 2.5vw, 34px) 44px;
}

.lab-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 0 16px;
  border-bottom: 1px solid var(--line);
}

.brand-link {
  color: var(--paper);
  font-size: 1.02rem;
  font-weight: 950;
}

.lab-topbar nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.lab-topbar a:not(.brand-link),
.source-grid a {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--paper-2);
  font-size: 0.78rem;
  font-weight: 850;
}

.lab-focus-strip,
.hero-proof,
.control-grid,
.branch-panel,
.ranking-panel,
.packet-panel,
.source-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(140deg, rgba(239, 245, 224, 0.055), rgba(88, 220, 205, 0.035)),
    var(--panel);
  box-shadow: 0 24px 90px var(--shadow);
}

.lab-focus-strip {
  display: grid;
  grid-template-columns: 120px minmax(240px, 1fr) minmax(260px, 0.86fr);
  gap: 16px;
  align-items: center;
  margin: 14px 0;
  padding: 14px 16px;
}

.lab-focus-strip span,
.panel-heading span,
.packet-card span,
.receipt-grid span,
.dataset-card span,
.branch-card span,
.eyebrow {
  color: var(--lime);
  font-size: 0.72rem;
  font-weight: 950;
  text-transform: uppercase;
}

.lab-focus-strip strong {
  font-size: 0.98rem;
}

.lab-focus-strip p,
.hero-copy p,
.dataset-card p,
.dataset-card li,
.branch-card em,
.packet-card p,
.receipt-grid p,
.source-grid span {
  color: var(--paper-2);
  line-height: 1.48;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(300px, 1.12fr) minmax(280px, 0.72fr);
  gap: 14px;
  align-items: stretch;
}

.hero-copy {
  display: grid;
  align-content: center;
  min-height: 245px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 12px;
  max-width: 860px;
  font-size: clamp(2.25rem, 4.8vw, 4.9rem);
  line-height: 0.96;
}

.hero-copy p {
  max-width: 860px;
  margin-bottom: 0;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
}

.hero-proof {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.hero-proof div {
  display: grid;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
  background: rgba(9, 13, 12, 0.58);
}

.hero-proof span {
  color: var(--cyan);
  font-size: 0.7rem;
  font-weight: 950;
  text-transform: uppercase;
}

.hero-proof strong {
  overflow-wrap: anywhere;
  font-size: 1.08rem;
}

.control-grid {
  display: grid;
  grid-template-columns: minmax(190px, 0.8fr) repeat(4, minmax(150px, 1fr));
  gap: 10px;
  margin: 14px 0;
  padding: 12px;
}

.control-grid label {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.control-grid span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

select {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(8, 12, 11, 0.82);
  color: var(--paper);
  padding: 0 10px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--cyan);
}

.workbench-grid {
  display: grid;
  grid-template-columns: minmax(250px, 0.64fr) minmax(480px, 1.36fr) minmax(310px, 0.74fr);
  gap: 14px;
  align-items: start;
}

.branch-panel,
.ranking-panel,
.packet-panel,
.source-section {
  min-width: 0;
  padding: 14px;
}

.branch-panel {
  position: sticky;
  top: 14px;
}

.panel-heading {
  display: grid;
  gap: 4px;
  margin-bottom: 12px;
}

.panel-heading strong {
  font-size: 1rem;
}

.branch-list,
.dataset-list,
.source-grid,
.receipt-grid {
  display: grid;
  gap: 10px;
}

.branch-card {
  display: grid;
  width: 100%;
  gap: 7px;
  min-height: 120px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(8, 12, 11, 0.58);
  color: var(--paper);
  padding: 12px;
  text-align: left;
  cursor: pointer;
}

.branch-card strong,
.branch-card em {
  font-style: normal;
}

.branch-card.is-active {
  border-color: rgba(183, 255, 82, 0.72);
  background: rgba(183, 255, 82, 0.1);
}

#roi-map {
  display: block;
  width: 100%;
  height: auto;
  min-height: 260px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0c1110;
}

.dataset-list {
  margin-top: 12px;
}

.dataset-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 92px;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(8, 12, 11, 0.58);
  padding: 12px;
}

.dataset-card.is-winner {
  border-color: rgba(88, 220, 205, 0.75);
  background: linear-gradient(135deg, rgba(88, 220, 205, 0.12), rgba(8, 12, 11, 0.64));
}

.dataset-card strong {
  display: block;
  margin: 4px 0 6px;
  font-size: 1.05rem;
}

.dataset-card p {
  margin-bottom: 0;
}

.dataset-card ul {
  grid-column: 1 / -1;
  margin: 0;
  padding-left: 18px;
}

.dataset-score {
  align-self: start;
  border: 1px solid rgba(88, 220, 205, 0.42);
  border-radius: 8px;
  padding: 10px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 950;
  text-align: center;
}

.packet-card {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 10px;
  background: rgba(8, 12, 11, 0.58);
  padding: 12px;
}

pre,
code {
  max-width: 100%;
  color: var(--cyan);
  font-family: var(--font-mono);
  overflow-wrap: anywhere;
}

pre {
  overflow-x: auto;
  margin: 0;
  white-space: pre-wrap;
}

.source-section {
  margin-top: 14px;
}

.source-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.source-grid a {
  display: grid;
  gap: 6px;
  min-height: 112px;
  background: rgba(8, 12, 11, 0.42);
}

.source-grid strong {
  color: var(--paper);
}

.receipt-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 10px;
}

.receipt-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(8, 12, 11, 0.44);
  padding: 12px;
}

@media (max-width: 1100px) {
  .control-grid,
  .workbench-grid,
  .source-grid,
  .receipt-grid {
    grid-template-columns: 1fr 1fr;
  }

  .packet-panel {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .life-roi-shell {
    padding: 12px 10px 28px;
  }

  .lab-focus-strip,
  .hero-grid,
  .control-grid,
  .workbench-grid,
  .source-grid,
  .receipt-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    min-height: auto;
    padding: 26px 0 8px;
  }

  h1 {
    font-size: clamp(2rem, 13vw, 3.2rem);
  }

  .branch-panel {
    position: static;
  }

  .dataset-card {
    grid-template-columns: 1fr;
  }
}