:root {
  color-scheme: light dark;
  --bg: #f4f4f5;
  --surface: #ffffff;
  --text: #18181b;
  --muted: #52525b;
  --border: #d4d4d8;
  --accent: #4338ca;
  --accent-hover: #3730a3;
  --ok: #15803d;
  --warn: #a16207;
  --bad: #b91c1c;
  --focus: #6366f1;
  --tile-ok-bg: #ecfdf5;
  --tile-warn-bg: #fefce8;
  --tile-bad-bg: #fef2f2;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #09090b;
    --surface: #18181b;
    --text: #fafafa;
    --muted: #a1a1aa;
    --border: #3f3f46;
    --accent: #818cf8;
    --accent-hover: #a5b4fc;
    --ok: #4ade80;
    --warn: #facc15;
    --bad: #f87171;
    --tile-ok-bg: #052e16;
    --tile-warn-bg: #422006;
    --tile-bad-bg: #450a0a;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--surface);
  padding: 0.5rem 1rem;
  border: 2px solid var(--focus);
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.375rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--muted);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
}
.nav-link:hover {
  color: var(--text);
  background: var(--bg);
}
.nav-link-active {
  color: var(--accent);
  font-weight: 600;
}
.nav-logout {
  margin: 0;
}

.site-main {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.25rem;
}

.site-footer {
  max-width: 72rem;
  margin: 2rem auto 1rem;
  padding: 0 1.25rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.page-head h1 {
  margin: 0 0 0.25rem;
  font-size: 1.75rem;
}
.page-intro {
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem;
}
.tile-ok {
  background: var(--tile-ok-bg);
}
.tile-warn {
  background: var(--tile-warn-bg);
}
.tile-bad {
  background: var(--tile-bad-bg);
}
.tile-title {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
  font-weight: 500;
}
.tile-value {
  margin: 0.35rem 0;
  font-size: 1.5rem;
  font-weight: 600;
}
.tile-hint {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--muted);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}
.panel h2 {
  margin-top: 0;
  font-size: 1.125rem;
}

.positive {
  color: var(--ok);
  font-weight: 500;
}

.urgent-list {
  margin: 0;
  padding-left: 1.25rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}
.data-table th,
.data-table td {
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0.65rem;
  text-align: left;
  vertical-align: top;
}
.data-table th {
  color: var(--muted);
  font-weight: 600;
}

@media (max-width: 860px) {
  .data-table thead {
    display: none;
  }
  .data-table tr {
    display: block;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    padding: 0.5rem;
  }
  .data-table td {
    display: block;
    border: none;
    padding: 0.25rem 0;
  }
  .data-table td[data-label]::before {
    content: attr(data-label);
    display: block;
    font-size: 0.75rem;
    color: var(--muted);
  }
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.card-row {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem;
}
.card-row h2 {
  margin: 0 0 0.75rem;
  font-size: 1.125rem;
}
.card-dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.5rem 1rem;
  margin: 0;
}
.card-dl dt {
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0;
}
.card-dl dd {
  margin: 0;
}

.badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  border: 1px solid var(--border);
}
.badge-ok {
  color: var(--ok);
  border-color: var(--ok);
}
.badge-warn {
  color: var(--warn);
  border-color: var(--warn);
}
.badge-bad {
  color: var(--bad);
  border-color: var(--bad);
}

.btn {
  font: inherit;
  cursor: pointer;
  border-radius: 0.375rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
}
.btn-ghost {
  background: transparent;
}

.form .field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}
.form input,
.filter-form select,
.filter-form input {
  font: inherit;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  background: var(--surface);
  color: var(--text);
}
.form input:focus-visible,
.filter-form select:focus-visible,
.filter-form input:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}

.login-card {
  max-width: 24rem;
  margin: 2rem auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.5rem;
}

.form-error {
  color: var(--bad);
}

.form-notice {
  color: var(--muted);
}

.form-footer {
  margin-top: 1rem;
  font-size: 0.9375rem;
}

.filter-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: flex-end;
  margin-bottom: 1rem;
}

.hint {
  color: var(--muted);
  font-size: 0.875rem;
}

.empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
}

.chart {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1rem 0;
}
.chart-axis {
  stroke: var(--border);
  stroke-width: 1;
}
.chart-bar {
  fill: var(--accent);
}
.chart-bar-gap {
  fill: var(--muted);
  opacity: 0.5;
}
.chart-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
}
.chart-dot {
  fill: var(--accent);
}
.chart-label {
  fill: var(--muted);
  font-size: 10px;
}

.sub-row td {
  font-size: 0.8125rem;
  color: var(--muted);
}

code {
  font-family: ui-monospace, monospace;
  font-size: 0.875em;
}

.day-table summary {
  cursor: pointer;
  color: var(--muted);
  padding: 0.5rem 0;
}