:root {
  color-scheme: light dark;
  --ink: #171a1f;
  --ink-soft: #5b6472;
  --ink-faint: #8b94a3;
  --ground: #f4f5f7;
  --card: #ffffff;
  --rule: #e0e3e9;
  --accent: #2f5d8c;
  --deep: #24406b;
  --light: #5b8bbd;
  --rem: #7f6bb0;
  --awake: #cfd5de;
  --steps: #3f7f6b;
  --danger: #9a3033;
  --scored: #2f6f52;
  --calibrating: #6a5aa8;
  --unscorable: #8a6a20;
  --absent: #8b94a3;
  --bar-track: #e7eaf0;
  --shadow: 0 1px 2px rgba(20, 26, 38, 0.06), 0 6px 18px rgba(20, 26, 38, 0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8eaee;
    --ink-soft: #9aa3b2;
    --ink-faint: #6c7688;
    --ground: #15181d;
    --card: #1d2128;
    --rule: #2c313a;
    --accent: #7fb0e0;
    --deep: #4d78b5;
    --light: #7fa9d6;
    --rem: #a08fd2;
    --awake: #3a4048;
    --steps: #63b295;
    --danger: #e08a8c;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0;
  background: var(--ground);
  color: var(--ink);
  font: 15px/1.5 "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 18px 24px;
  border-bottom: 1px solid var(--rule);
  background: var(--card);
}

.masthead-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.mark {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2.5px solid var(--accent);
  align-self: center;
}

.masthead h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.subtitle {
  color: var(--ink-faint);
  font-size: 12.5px;
}

.masthead-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.signed-in {
  color: var(--ink-soft);
  font-size: 13px;
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 20px 8px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.panel h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.caption {
  color: var(--ink-faint);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

.sign-in {
  max-width: 380px;
  margin: 40px auto;
}

.sign-in h2 {
  text-transform: none;
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 4px;
}

.lede {
  color: var(--ink-soft);
  font-size: 13.5px;
  margin: 0 0 18px;
}

form label {
  display: block;
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-bottom: 5px;
}

form input {
  display: block;
  width: 100%;
  padding: 9px 11px;
  margin-bottom: 14px;
  border: 1px solid var(--rule);
  border-radius: 7px;
  background: var(--ground);
  color: var(--ink);
  font: inherit;
}

form input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

button {
  font: inherit;
  cursor: pointer;
  border-radius: 7px;
  border: 1px solid transparent;
  padding: 9px 16px;
  background: var(--accent);
  color: #fff;
  font-weight: 500;
}

button:disabled {
  opacity: 0.55;
  cursor: default;
}

button.ghost {
  background: transparent;
  color: var(--ink-soft);
  border-color: var(--rule);
  padding: 6px 12px;
}

button.ghost:hover:not(:disabled) {
  color: var(--ink);
  border-color: var(--ink-faint);
}

.daybar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding: 0 2px;
}

.daybar-label {
  text-align: center;
  line-height: 1.3;
}

#day-label {
  display: block;
  font-size: 16px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.day-relative {
  display: block;
  color: var(--ink-faint);
  font-size: 12px;
}

.chart svg {
  display: block;
  width: 100%;
  height: auto;
}

.chart text {
  font-family: inherit;
  fill: var(--ink-faint);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

.chart .axis-rule {
  stroke: var(--rule);
  stroke-width: 1;
}

.chart .grid {
  stroke: var(--rule);
  stroke-width: 1;
  stroke-dasharray: 2 4;
}

.chart .hr-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.75;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.chart .stage-deep { fill: var(--deep); }
.chart .stage-light { fill: var(--light); }
.chart .stage-rem { fill: var(--rem); }
.chart .stage-awake { fill: var(--awake); }
.chart .step-bar { fill: var(--steps); }
.chart .step-bar-current { fill: var(--accent); }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
  font-size: 12px;
  color: var(--ink-soft);
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend i {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

.measures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 14px 18px;
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.measures div { margin: 0; }

.measures dt {
  font-size: 11.5px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  margin-bottom: 2px;
}

.measures dd {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.measures dd small {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--ink-faint);
  margin-left: 2px;
}

.empty {
  margin: 0;
  padding: 22px 0;
  text-align: center;
  color: var(--ink-faint);
  font-size: 13.5px;
}

.error {
  margin: 14px 0 0;
  padding: 10px 12px;
  border-radius: 7px;
  border: 1px solid var(--danger);
  color: var(--danger);
  font-size: 13px;
  background: transparent;
}

footer {
  max-width: 880px;
  margin: 0 auto;
  padding: 14px 20px 34px;
  color: var(--ink-faint);
  font-size: 12px;
  line-height: 1.6;
}

footer code {
  font-size: 11.5px;
  color: var(--ink-soft);
}

@media (max-width: 520px) {
  main { padding: 18px 14px 8px; }
  .panel { padding: 16px 14px; }
}

.scores {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.score-card {
  border: 1px solid var(--rule);
  border-radius: 9px;
  padding: 14px 15px 12px;
  background: var(--ground);
}

.score-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.score-family {
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
}

.state-pill {
  font-size: 10.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 2.5px 7px;
  border-radius: 999px;
  border: 1px solid currentColor;
  white-space: nowrap;
}

.state-scored { color: var(--scored); }
.state-calibrating { color: var(--calibrating); }
.state-unscorable { color: var(--unscorable); }
.state-pending { color: var(--ink-faint); }

.score-figure {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 10px 0 2px;
}

.score-value {
  font-size: 34px;
  font-weight: 650;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.score-value.is-absent {
  font-size: 22px;
  font-weight: 600;
  color: var(--ink-faint);
}

.score-of {
  font-size: 12px;
  color: var(--ink-faint);
}

.score-why {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-soft);
}

.score-why strong {
  font-weight: 600;
  color: var(--ink);
}

.score-meta {
  margin: 10px 0 0;
  font-size: 11.5px;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.score-card details {
  margin-top: 11px;
  border-top: 1px solid var(--rule);
  padding-top: 9px;
}

.score-card summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--ink-soft);
  list-style: none;
}

.score-card summary::-webkit-details-marker { display: none; }

.score-card summary::before {
  content: "\25B8";
  display: inline-block;
  margin-right: 6px;
  color: var(--ink-faint);
  transition: transform 120ms ease;
}

.score-card details[open] summary::before { transform: rotate(90deg); }

.score-card summary:hover { color: var(--ink); }

.contributors {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.contributor-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
}

.contributor-name {
  color: var(--ink);
}

.contributor-sub {
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
  white-space: nowrap;
}

.contributor-bar {
  height: 5px;
  border-radius: 3px;
  background: var(--bar-track);
  margin-top: 4px;
  overflow: hidden;
}

.contributor-bar i {
  display: block;
  height: 100%;
  background: var(--scored);
  border-radius: 3px;
}

.contributor-note {
  margin-top: 3px;
  font-size: 11px;
  color: var(--ink-faint);
  line-height: 1.4;
}

.contributor-unavailable .contributor-name,
.contributor-unavailable .contributor-sub {
  color: var(--ink-faint);
}

.contributor-unavailable .contributor-bar {
  background: repeating-linear-gradient(
    135deg, var(--bar-track), var(--bar-track) 3px, transparent 3px, transparent 6px);
}

.contributor-flag {
  display: inline-block;
  margin-left: 6px;
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--unscorable);
  white-space: nowrap;
}

.absent-block {
  margin-top: 11px;
  border-top: 1px dashed var(--rule);
  padding-top: 9px;
}

.absent-title {
  font-size: 11px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--absent);
  font-weight: 600;
  margin: 0 0 6px;
}

.absent-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 5px;
}

.absent-list li {
  font-size: 11.5px;
  color: var(--ink-faint);
  line-height: 1.4;
}

.absent-list b {
  color: var(--ink-soft);
  font-weight: 600;
  text-decoration: line-through;
  text-decoration-color: var(--absent);
}

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

.insights li {
  border: 1px solid var(--rule);
  border-left: 3px solid var(--calibrating);
  border-radius: 7px;
  padding: 10px 12px;
  background: var(--ground);
}

.insights li.severity-notice { border-left-color: var(--unscorable); }

.insight-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.insight-code {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
}

.insight-key {
  font-size: 11px;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.insight-params {
  margin: 6px 0 0;
  font-size: 11.5px;
  color: var(--ink-soft);
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}

.consent-document {
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 12px;
  background: var(--card);
}

.consent-document h3 {
  margin: 0 0 8px;
  font-size: 14px;
  letter-spacing: 0.01em;
}

.consent-body {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
}

.consent-provenance {
  margin: 0;
  font-size: 11.5px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.consent-confirm {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 16px 0 14px;
  font-size: 13px;
  line-height: 1.5;
}

.consent-confirm input {
  margin-top: 2px;
}