/* ClinBolt Stats -- shared theme, layout, header and footer.
   Dashboard-specific rules belong in each dashboard's own style.css. */

/* ---------------------------------------------------------------- tokens */
:root {
  color-scheme: light dark;

  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-alt: #f0f2f5;
  --border: #d8dce3;
  --border-strong: #b9c0cb;
  --text: #16191f;
  --text-muted: #5b6472;
  --text-faint: #838c9a;
  --accent: #0072b2;
  --accent-contrast: #ffffff;
  --focus: #0072b2;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.1);

  /* Okabe-Ito derived, colour-blind safe.  Estimated vs Actual is additionally
     distinguished by a hatched fill and explicit legend wording, so colour is
     never the only channel. */
  --seg-active-estimated: #56b4e9;
  --seg-active-actual: #0072b2;
  --seg-closed-estimated: #e69f00;
  --seg-closed-actual: #d55e00;
  --seg-unknown-estimated: #cc79a7;
  --seg-unknown-actual: #882e72;

  --radius: 10px;
  --radius-sm: 6px;
  --maxw: 1180px;
  --gap: 1.25rem;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --surface: #1c2128;
    --surface-alt: #232932;
    --border: #2f3641;
    --border-strong: #414a57;
    --text: #e8eaed;
    --text-muted: #a3adba;
    --text-faint: #7d8794;
    --accent: #58a6ff;
    --accent-contrast: #0d1117;
    --focus: #58a6ff;
    --shadow: none;

    --seg-active-estimated: #7cc7f0;
    --seg-active-actual: #3d9ae0;
    --seg-closed-estimated: #f0b43c;
    --seg-closed-actual: #f07030;
    --seg-unknown-estimated: #dd9bc0;
    --seg-unknown-actual: #b06bb0;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin: 0 0 0.5rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.6rem, 4vw, 2.1rem);
}

h2 {
  font-size: clamp(1.2rem, 3vw, 1.45rem);
}

h3 {
  font-size: 1.02rem;
}

p {
  margin: 0 0 0.85rem;
}

a {
  color: var(--accent);
}

a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--surface-alt);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

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

.small {
  font-size: 0.875rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------------------------------------------------------------- header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  min-height: 60px;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand span {
  color: var(--accent);
}

.site-nav {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-left: auto;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.site-nav a:hover {
  background: var(--surface-alt);
  color: var(--text);
}

.site-nav a[aria-current="page"] {
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
}

/* ---------------------------------------------------------------- layout */
main {
  flex: 1 0 auto;
  padding: 1.75rem 0 3rem;
}

.page-intro {
  max-width: 68ch;
  margin-bottom: 1.5rem;
}

.page-intro p {
  color: var(--text-muted);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem 1.3rem;
  margin-bottom: var(--gap);
  box-shadow: var(--shadow);
}

.panel > h2 {
  margin-bottom: 0.15rem;
}

.panel-note {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0 0 1rem;
  max-width: 78ch;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------------------------------------------------------------- cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: var(--gap);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

a.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card h3 {
  margin: 0;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  flex: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-faint);
}

.card.is-coming-soon {
  opacity: 0.6;
  cursor: default;
  border-style: dashed;
}

.tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--surface-alt);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.tag-live {
  background: rgba(0, 158, 115, 0.14);
  color: #007a59;
  border-color: rgba(0, 158, 115, 0.35);
}

@media (prefers-color-scheme: dark) {
  .tag-live {
    color: #4ed0a8;
  }
}

/* ---------------------------------------------------------------- KPIs */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.85rem;
}

.kpi {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.8rem 0.9rem;
  border-left: 4px solid var(--border-strong);
}

.kpi-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  font-weight: 600;
  display: block;
  margin-bottom: 0.2rem;
}

.kpi-value {
  font-size: 1.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  display: block;
}

.kpi-sub {
  font-size: 0.78rem;
  color: var(--text-faint);
}

/* ---------------------------------------------------------------- controls */
.controls {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 170px;
}

.control label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

select {
  font: inherit;
  font-size: 0.92rem;
  padding: 0.45rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  width: 100%;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  padding-bottom: 0.45rem;
}

.checkbox input {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--accent);
}

.toggle-group {
  display: inline-flex;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.toggle-group button {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.35rem 0.8rem;
  background: var(--surface);
  color: var(--text-muted);
  border: 0;
  cursor: pointer;
}

.toggle-group button + button {
  border-left: 1px solid var(--border-strong);
}

.toggle-group button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
}

.link-button {
  font-size: 0.85rem;
  text-decoration: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.75rem;
  color: var(--accent);
  white-space: nowrap;
}

.link-button:hover {
  border-color: var(--accent);
}

/* ---------------------------------------------------------------- charts */
.chart {
  width: 100%;
  height: 420px;
}

.chart-sm {
  width: 100%;
  height: 260px;
}

.small-multiples {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.sm-cell {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  background: var(--surface-alt);
}

.sm-title {
  font-size: 0.82rem;
  font-weight: 650;
  color: var(--text-muted);
  margin: 0 0 0.25rem;
  padding-left: 0.25rem;
}

/* ---------------------------------------------------------------- tables */
.table-scroll {
  overflow-x: auto;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}

table.data th,
table.data td {
  text-align: right;
  padding: 0.5rem 0.7rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

table.data th:first-child,
table.data td:first-child {
  text-align: left;
}

table.data thead th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border-strong);
}

table.data tbody tr:hover {
  background: var(--surface-alt);
}

table.data tfoot td {
  font-weight: 650;
  border-top: 2px solid var(--border-strong);
}

/* ---------------------------------------------------------------- states */
.state {
  padding: 2.5rem 1.25rem;
  text-align: center;
  color: var(--text-muted);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
}

.state-error {
  border-color: #d55e00;
  color: var(--text);
}

.state-error strong {
  display: block;
  margin-bottom: 0.4rem;
  color: #d55e00;
}

.spinner {
  width: 26px;
  height: 26px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto 0.75rem;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation: none;
  }
  a.card:hover {
    transform: none;
  }
}

/* ---------------------------------------------------------------- footer */
.site-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 1.5rem 0;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.site-footer p {
  margin: 0 0 0.4rem;
  max-width: 80ch;
}

.site-footer .disclaimer {
  color: var(--text-faint);
}

/* ---------------------------------------------------------------- mobile */
@media (max-width: 720px) {
  .site-header .wrap {
    gap: 0.5rem;
  }

  .site-nav {
    margin-left: 0;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .chart {
    height: 360px;
  }

  .small-multiples {
    grid-template-columns: minmax(0, 1fr);
  }

  .control {
    min-width: 100%;
  }

  .kpi-value {
    font-size: 1.3rem;
  }
}