:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #1d2733;
  --muted: #667585;
  --line: #dde4eb;
  --accent: #0f8b8d;
  --accent-strong: #0b686b;
  --warning: #a45212;
  --shadow: 0 12px 30px rgba(20, 32, 45, 0.08);
}

body.dark {
  color-scheme: dark;
  --bg: #161a1d;
  --panel: #20262b;
  --text: #edf2f4;
  --muted: #aab5bd;
  --line: #39434b;
  --accent: #42b7b9;
  --accent-strong: #74d2d4;
  --warning: #f0a35d;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 0;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

.container {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}

.page-stack {
  display: grid;
  gap: 22px;
  padding: 24px 0 48px;
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
}

.navline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  gap: 16px;
}

.back-link,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  border-radius: 8px;
  padding: 0 12px;
  background: var(--accent);
  color: white;
  font-weight: 700;
  white-space: nowrap;
}

.source-name {
  min-width: 0;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  min-height: 180px;
  padding: 36px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, transparent), transparent 46%),
    var(--panel);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-strong);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1,
h2 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2rem, 4vw, 4.3rem);
  max-width: 900px;
}

h2 {
  font-size: 1.05rem;
}

img,
svg,
canvas {
  max-width: 100%;
}

.muted {
  color: var(--muted);
  margin: 12px 0 0;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.metric-card,
.panel,
.chart-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.metric-card {
  display: grid;
  gap: 10px;
  min-height: 106px;
  padding: 18px;
}

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

.metric-card strong {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

.panel {
  padding: 20px;
}

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

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

.map {
  width: 100%;
  min-height: 480px;
  border-radius: 8px;
  border: 1px solid var(--line);
  overflow: hidden;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 180px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
}

.hidden {
  display: none !important;
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.period-layout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.period-list {
  display: grid;
  gap: 10px;
}

.compact-period-list {
  max-height: 390px;
  overflow: auto;
  padding-right: 4px;
}

.period-item {
  display: grid;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
  color: var(--text);
  transition: border-color 160ms ease, transform 160ms ease;
}

.period-item:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.period-item span {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.breakdown-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.breakdown-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
}

.chart-card {
  min-width: 0;
  padding: 18px;
}

.chart-card h2 {
  margin-bottom: 12px;
}

.chart {
  width: 100%;
  min-height: 320px;
}

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

.details-grid div {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

dt {
  color: var(--muted);
  font-size: 0.86rem;
}

dd {
  margin: 4px 0 0;
  overflow-wrap: anywhere;
  font-weight: 700;
}

.device-info {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.device-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 11px;
  color: var(--muted);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.activity-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 940px;
}

.activity-table th,
.activity-table td {
  border-bottom: 1px solid var(--line);
  padding: 13px 12px;
  text-align: left;
  vertical-align: middle;
}

.activity-table th {
  color: var(--muted);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.activity-table td {
  overflow-wrap: anywhere;
}

.warning-panel {
  border-color: color-mix(in srgb, var(--warning) 40%, var(--line));
}

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

.failure-list li {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.failure-list span {
  color: var(--warning);
}

@media (max-width: 900px) {
  .summary-grid,
  .charts-grid,
  .details-grid,
  .period-layout,
  .breakdown-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .wide-panel {
    grid-column: auto;
  }
}

@media (max-width: 620px) {
  body {
    line-height: 1.45;
  }

  .container {
    width: min(100% - 16px, 1200px);
  }

  .page-stack {
    gap: 16px;
    padding: 16px 0 32px;
  }

  .hero {
    align-items: flex-start;
    min-height: 0;
    padding: 20px;
  }

  h1 {
    font-size: clamp(1.7rem, 10vw, 2.4rem);
  }

  .metric-card,
  .panel,
  .chart-card {
    box-shadow: 0 8px 22px rgba(20, 32, 45, 0.07);
  }

  .metric-card,
  .panel,
  .chart-card {
    padding: 16px;
  }

  .metric-card {
    min-height: 86px;
  }

  .summary-grid,
  .charts-grid,
  .details-grid,
  .period-layout,
  .breakdown-list {
    grid-template-columns: 1fr;
  }

  .map {
    min-height: 360px;
  }

  .navline {
    min-height: 52px;
    gap: 10px;
    padding: 8px 0;
  }

  .source-name {
    font-size: 0.9rem;
  }

  .back-link,
  .button-link {
    min-height: 40px;
    padding: 0 14px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
  }

  .compact-period-list {
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

  .chart {
    min-height: 260px;
  }

  .table-wrap {
    overflow: visible;
  }

  .activity-table {
    display: block;
    min-width: 0;
  }

  .activity-table thead {
    display: none;
  }

  .activity-table tbody {
    display: grid;
    gap: 12px;
  }

  .activity-table tr {
    display: grid;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: color-mix(in srgb, var(--panel) 96%, var(--bg));
    overflow: hidden;
  }

  .activity-table td {
    display: grid;
    grid-template-columns: minmax(92px, 40%) minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    min-height: 42px;
    padding: 10px 12px;
    text-align: right;
  }

  .activity-table td::before {
    content: attr(data-label);
    color: var(--muted);
    font-weight: 600;
    text-align: left;
  }

  .activity-table td:last-child {
    border-bottom: 0;
  }

  .activity-table td .button-link {
    justify-self: end;
  }
}

@media (max-width: 380px) {
  .activity-table td {
    grid-template-columns: 1fr;
    gap: 3px;
    text-align: left;
  }

  .activity-table td .button-link {
    justify-self: stretch;
  }
}