:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-strong: #f1f5f9;
  --text: #172033;
  --muted: #61708a;
  --border: #d9e0ea;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --warning: #b45309;
  --danger: #b91c1c;
  --ok: #166534;
  --shadow: 0 18px 60px rgba(34, 42, 58, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

button,
input {
  font: inherit;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: 24px;
  align-items: stretch;
  min-height: 300px;
}

.hero-copy,
.import-panel,
.metric,
.queue-area,
.side-panel,
.requirements {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: clamp(28px, 5vw, 54px);
}

.product-label {
  margin: 0 0 18px;
  color: var(--accent-strong);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(2.2rem, 4vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 8px;
  font-size: 1rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.lede {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
}

.import-panel {
  display: grid;
  align-content: center;
  gap: 12px;
  padding: 24px;
}

.file-control {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.file-control input {
  width: 100%;
  padding: 12px;
  border: 1px dashed var(--border);
  border-radius: 8px;
  background: var(--surface-strong);
  color: var(--text);
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
}

button:hover {
  background: var(--accent-strong);
}

button:disabled {
  cursor: not-allowed;
  background: #9aa7b8;
}

.status-text {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 20px 0;
}

.metric {
  padding: 20px;
}

.metric-label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1;
  letter-spacing: 0;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 20px;
}

.queue-area,
.side-panel,
.requirements {
  padding: 20px;
  min-width: 0;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 16px;
}

.section-heading p {
  max-width: 540px;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
}

th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
  font-size: 0.9rem;
}

th {
  background: var(--surface-strong);
  color: #334155;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.empty {
  color: var(--muted);
  text-align: center;
}

.state {
  display: inline-flex;
  min-width: 82px;
  justify-content: center;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
}

.state.ok {
  background: #dcfce7;
  color: var(--ok);
}

.state.watch {
  background: #fef3c7;
  color: var(--warning);
}

.state.due {
  background: #fee2e2;
  color: var(--danger);
}

.state.clean {
  background: #e0f2fe;
  color: #075985;
}

.muted {
  color: var(--muted);
  font-size: 0.78rem;
}

.side-panel {
  display: grid;
  gap: 18px;
  align-content: start;
}

.check-list,
.requirement-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.check-list li,
.requirement-list li {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-strong);
  color: #334155;
  font-size: 0.9rem;
  line-height: 1.4;
}

.boundary {
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.boundary p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.requirements {
  margin-top: 20px;
}

.requirement-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 920px) {
  .hero,
  .workspace {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 620px) {
  .shell {
    width: min(100% - 20px, 1180px);
    padding-top: 16px;
  }

  .hero-copy,
  .import-panel,
  .queue-area,
  .side-panel,
  .requirements,
  .metric {
    padding: 16px;
  }

  .metrics-grid,
  .requirement-list {
    grid-template-columns: 1fr;
  }

  .section-heading {
    display: block;
  }

  h1 {
    font-size: 2.1rem;
  }
}