:root {
  color-scheme: light;
  --bg: #f4f7f6;
  --ink: #1d2528;
  --muted: #627174;
  --line: #d5dddc;
  --panel: #ffffff;
  --accent: #0f766e;
  --accent-dark: #0b5f59;
  --warn: #9a3412;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1;
  letter-spacing: 0;
}

p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.privacy-badge {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  background: #e6f4f1;
  color: var(--accent-dark);
  font-weight: 700;
}

.workspace {
  display: grid;
  gap: 18px;
}

.upload-panel,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 40px rgba(29, 37, 40, 0.08);
}

.upload-panel {
  padding: 18px;
}

.drop-zone {
  display: grid;
  place-items: center;
  min-height: 190px;
  border: 2px dashed #9db2af;
  border-radius: 8px;
  background: #f9fbfb;
  cursor: pointer;
  text-align: center;
  padding: 24px;
  transition: border-color 160ms ease, background 160ms ease;
}

.drop-zone.dragging {
  border-color: var(--accent);
  background: #eaf7f5;
}

.drop-zone.busy {
  cursor: progress;
  opacity: 0.82;
}

.drop-zone input {
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  position: absolute;
}

.drop-title {
  display: block;
  color: var(--ink);
  font-size: 1.3rem;
  font-weight: 800;
}

.drop-detail {
  display: block;
  max-width: 640px;
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.45;
}

.status-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.92rem;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.summary-card {
  min-height: 96px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.summary-card-wide {
  grid-column: span 2;
}

.time-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.summary-label {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.summary-value {
  margin-top: 8px;
  font-size: 1.25rem;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab-button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  font-weight: 800;
  min-height: 42px;
  padding: 0 14px;
}

.tab-button.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.panel {
  padding: 18px;
  overflow: hidden;
}

.details-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
  margin: 0;
}

.details-list div {
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
}

dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

dd {
  margin: 6px 0 0;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.table-wrap {
  overflow-x: auto;
}

.sample-chart {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(86px, 1fr));
  align-items: end;
  gap: 12px;
  min-height: 190px;
  margin-bottom: 18px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfb;
}

.sample-bar-item {
  display: grid;
  grid-template-rows: 132px auto auto;
  gap: 6px;
  min-width: 0;
}

.sample-bar-track {
  display: flex;
  align-items: end;
  min-height: 132px;
  border-radius: 6px;
  background: #e5eeec;
  overflow: hidden;
}

.sample-bar {
  width: 100%;
  background: var(--accent);
}

.sample-bar-label,
.sample-bar-value {
  overflow-wrap: anywhere;
  text-align: center;
}

.sample-bar-label {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.sample-bar-value {
  font-size: 0.86rem;
  font-weight: 800;
}

.table-wrap + pre {
  margin-top: 16px;
}

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

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 12px;
  text-align: left;
}

th {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

pre {
  max-height: 560px;
  margin: 0;
  overflow: auto;
  border-radius: 8px;
  background: #172123;
  color: #e9f2f1;
  padding: 16px;
  font-size: 0.86rem;
  line-height: 1.45;
}

ul {
  margin: 0;
  padding-left: 22px;
}

li {
  margin: 8px 0;
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 18px;
  }

  .topbar,
  .status-row {
    display: grid;
  }

  .summary-grid,
  .details-list {
    grid-template-columns: 1fr;
  }

  .summary-card-wide {
    grid-column: auto;
  }

  .time-pair {
    grid-template-columns: 1fr;
  }

  .privacy-badge {
    width: max-content;
  }
}