:root {
  --bg: #f3f0e8;
  --panel: rgba(255, 252, 246, 0.88);
  --panel-strong: #fffdf8;
  --ink: #17211d;
  --muted: #5b645f;
  --line: rgba(23, 33, 29, 0.12);
  --accent: #b34f22;
  --accent-soft: rgba(179, 79, 34, 0.12);
  --green: #1e6b4f;
  --green-soft: rgba(30, 107, 79, 0.12);
  --warning: #8f5a0a;
  --warning-soft: rgba(143, 90, 10, 0.12);
  --shadow: 0 24px 60px rgba(63, 39, 19, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(179, 79, 34, 0.12), transparent 26rem),
    radial-gradient(circle at top right, rgba(30, 107, 79, 0.1), transparent 22rem),
    var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
}

.shell {
  width: min(1200px, calc(100vw - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
  padding: 1.75rem;
  margin-bottom: 1rem;
}

.eyebrow {
  margin: 0 0 0.6rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.05;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  max-width: 13ch;
}

h2 {
  font-size: 1.25rem;
}

.hero-copy,
.upload-note,
.rules-note,
.validation-note,
.insight-note,
.mix-note,
.hero-chip,
.source-note {
  color: var(--muted);
}

.hero-copy {
  max-width: 64ch;
  line-height: 1.6;
}

.hero-actions {
  display: grid;
  align-content: start;
  gap: 0.75rem;
}

.hero-chip,
.metric-card,
.source-card,
.validation-item,
.insight-item,
.upload-card,
.rule-item {
  border-radius: 18px;
}

.hero-chip {
  padding: 0.85rem 1rem;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  font-size: 0.95rem;
}

.hero-chip.muted {
  background: transparent;
}

.grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 1rem;
}

.panel-head span {
  color: var(--muted);
  font-size: 0.92rem;
}

.panel > * {
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.panel > .panel-head,
.panel > .upload-stack,
.panel > .source-grid,
.panel > .rules-list,
.panel > .table-wrap,
.panel > .mix-list,
.panel > .validation-list,
.panel > .insight-list {
  padding-bottom: 1.25rem;
}

.upload-stack,
.source-grid,
.rules-list,
.validation-list,
.insight-list,
.mix-list {
  display: grid;
  gap: 0.85rem;
}

.upload-card {
  display: grid;
  gap: 0.35rem;
  padding: 1rem;
  background: var(--panel-strong);
  border: 1px dashed rgba(23, 33, 29, 0.18);
}

.upload-label {
  font-weight: 700;
}

.upload-card input {
  margin-top: 0.4rem;
}

.source-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.source-card,
.rule-item,
.validation-item,
.insight-item {
  padding: 0.95rem 1rem;
  background: var(--panel-strong);
  border: 1px solid var(--line);
}

.source-title,
.rule-title,
.validation-title,
.insight-title {
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.metric-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1rem;
}

.metric-card {
  padding: 1.2rem;
  background: linear-gradient(180deg, rgba(255, 253, 248, 0.98), rgba(255, 248, 238, 0.9));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.metric-label {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.metric-value {
  margin: 0;
  font-size: clamp(1.45rem, 2.8vw, 2.25rem);
  font-weight: 700;
  font-family: "Space Grotesk", sans-serif;
}

.metric-delta {
  margin: 0.6rem 0 0;
  font-size: 0.92rem;
}

.positive {
  color: var(--green);
}

.warning {
  color: var(--warning);
}

.negative {
  color: var(--accent);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 0.8rem 0.35rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

th {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mix-row {
  display: grid;
  gap: 0.45rem;
}

.mix-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.92rem;
}

.mix-bar {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: rgba(23, 33, 29, 0.08);
  overflow: hidden;
}

.mix-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), #d88d2d);
}

.empty-state {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.56);
  border: 1px dashed rgba(23, 33, 29, 0.18);
  color: var(--muted);
}

@media (max-width: 960px) {
  .hero,
  .two-up,
  .metric-grid,
  .source-grid {
    grid-template-columns: 1fr;
  }
}