:root {
  color-scheme: dark;
  --bg: #0c1712;
  --bg-deep: #08110d;
  --panel: #13231b;
  --panel-raised: #172b21;
  --line: #2b4437;
  --line-strong: #456453;
  --text: #f5f0de;
  --muted: #aebdaf;
  --lime: #c7f36b;
  --mint: #74d8a3;
  --amber: #ffc766;
  --red: #ff837a;
  --blue: #8dc8ff;
  --shadow: 0 18px 44px rgba(0, 0, 0, 0.24);
  --radius: 18px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 75% -10%, rgba(199, 243, 107, 0.09), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

button,
input {
  font: inherit;
}

button:focus-visible,
input:focus-visible,
summary:focus-visible,
a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  transform: translateY(-180%);
  border-radius: 10px;
  background: var(--text);
  color: var(--bg-deep);
  padding: 0.75rem 1rem;
}

.skip-link:focus {
  transform: translateY(0);
}

.app-header {
  width: min(100% - 2rem, var(--max-width));
  min-height: 76px;
  margin: 0 auto;
  padding: 1rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.app-header h1,
.app-header p {
  margin: 0;
}

.app-header h1 {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  letter-spacing: -0.035em;
}

.eyebrow {
  margin: 0 0 0.25rem;
  color: var(--mint);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.header-actions,
.modal-actions,
.status-bar {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.button {
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 0.62rem 0.9rem;
  cursor: pointer;
  font-weight: 720;
  transition: background-color 140ms ease, border-color 140ms ease, transform 140ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button-primary {
  background: var(--lime);
  color: #102012;
}

.button-secondary {
  border-color: var(--line);
  background: rgba(19, 35, 27, 0.86);
  color: var(--text);
}

.button-secondary:hover {
  border-color: var(--line-strong);
  background: var(--panel-raised);
}

.button-small {
  min-height: 36px;
  padding: 0.35rem 0.75rem;
  background: var(--text);
  color: var(--bg-deep);
}

.status-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto 0.75rem;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(23, 43, 33, 0.96);
  padding: 0.65rem 0.8rem;
  color: var(--muted);
  box-shadow: var(--shadow);
  font-size: 0.9rem;
}

.status-bar.error {
  border-color: rgba(255, 131, 122, 0.65);
  color: var(--text);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  overflow-y: auto;
  background: rgba(4, 10, 7, 0.83);
  padding: 1rem;
  backdrop-filter: blur(8px);
}

.modal[hidden],
.status-bar[hidden] {
  display: none;
}

.modal-content {
  width: min(100%, 500px);
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  background: var(--panel);
  padding: clamp(1.25rem, 4vw, 2rem);
  box-shadow: var(--shadow);
}

.modal-content h2 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
}

.modal-content > p:not(.eyebrow),
.form-help {
  color: var(--muted);
}

.modal-content label {
  display: block;
  margin-top: 1rem;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
}

.modal-content input {
  width: 100%;
  min-height: 48px;
  margin-top: 0.35rem;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--bg-deep);
  color: var(--text);
  padding: 0.7rem 0.8rem;
}

.form-help {
  margin: 0.9rem 0 0;
  font-size: 0.8rem;
}

.modal-actions {
  margin-top: 1.25rem;
}

.modal-actions .button {
  flex: 1;
}

main {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding-bottom: 2rem;
  display: grid;
  gap: 1rem;
}

.decision-card,
.panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(19, 35, 27, 0.94);
  padding: clamp(1rem, 3vw, 1.55rem);
  box-shadow: var(--shadow);
}

.decision-card {
  position: relative;
  overflow: hidden;
  border-top-width: 5px;
  border-top-color: var(--muted);
  background:
    linear-gradient(125deg, rgba(255,255,255,0.035), transparent 45%),
    var(--panel);
}

.decision-card::after {
  content: "";
  position: absolute;
  width: 16rem;
  height: 16rem;
  right: -8rem;
  top: -10rem;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.055;
  pointer-events: none;
}

.decision-card.state-leave { border-top-color: var(--lime); color: var(--lime); }
.decision-card.state-check { border-top-color: var(--amber); color: var(--amber); }
.decision-card.state-action { border-top-color: var(--red); color: var(--red); }
.decision-card.state-monitoring { border-top-color: var(--blue); color: var(--blue); }
.decision-card.state-loading { border-top-color: var(--muted); color: var(--muted); }

.decision-card > * {
  position: relative;
  z-index: 1;
}

.decision-topline,
.section-heading,
.reading-title,
.health-card-head,
.trend-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.decision-state {
  margin: 0;
  color: currentColor;
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 850;
  letter-spacing: 0.12em;
}

.status-chip,
.validity-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--text);
  padding: 0.25rem 0.62rem;
  font-size: 0.76rem;
  font-weight: 720;
  white-space: nowrap;
}

.decision-card h2 {
  max-width: 780px;
  margin: 0.9rem 0 0.25rem;
  color: var(--text);
  font-size: clamp(1.85rem, 6vw, 3.8rem);
  line-height: 1.02;
  letter-spacing: -0.055em;
}

.decision-condition,
.decision-reason {
  max-width: 800px;
  color: var(--muted);
}

.decision-condition {
  margin: 0.6rem 0 1rem;
  font-size: clamp(1rem, 2vw, 1.15rem);
}

.action-block {
  max-width: 820px;
  border-left: 4px solid currentColor;
  border-radius: 0 12px 12px 0;
  background: rgba(255,255,255,0.045);
  padding: 0.8rem 1rem;
}

.action-label {
  margin: 0;
  color: currentColor;
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.decision-action {
  margin: 0.2rem 0 0;
  color: var(--text);
  font-size: clamp(1.15rem, 3vw, 1.55rem);
  font-weight: 800;
}

.decision-reason {
  margin: 0.9rem 0;
}

.decision-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.25rem;
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 650;
}

.evidence-details {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--text);
}

.evidence-details summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  width: fit-content;
  cursor: pointer;
  color: var(--text);
  font-weight: 750;
}

.uncertainty {
  border: 1px solid rgba(255, 199, 102, 0.35);
  border-radius: 12px;
  background: rgba(255, 199, 102, 0.08);
  color: var(--text);
  padding: 0.75rem;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.evidence-group,
.health-card,
.day-card,
.trend-card,
.reading-tile {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-deep);
}

.evidence-group {
  padding: 0.8rem;
}

.evidence-group h3,
.source-block h3 {
  margin: 0 0 0.5rem;
  color: var(--mint);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.evidence-group ul,
.source-block ul {
  margin: 0;
  padding-left: 1.1rem;
}

.evidence-group li,
.source-block li {
  margin-top: 0.35rem;
  overflow-wrap: anywhere;
}

.source-block {
  margin-top: 0.9rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.section-heading {
  margin-bottom: 1rem;
}

.section-heading h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  letter-spacing: -0.025em;
}

.section-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: right;
}

.readings-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.7rem;
}

.reading-tile {
  padding: 0.8rem;
}

.reading-title {
  align-items: center;
}

.reading-label {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 680;
}

.reading-value {
  margin-top: 0.65rem;
  color: var(--text);
  font-size: clamp(1.2rem, 2.7vw, 1.65rem);
  font-weight: 780;
  letter-spacing: -0.03em;
}

.reading-note {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.72rem;
}

.reading-tile.invalid {
  border-color: rgba(255, 131, 122, 0.6);
}

.validity-badge.valid {
  border-color: rgba(116, 216, 163, 0.5);
  color: var(--mint);
}

.validity-badge.invalid {
  border-color: rgba(255, 131, 122, 0.55);
  color: var(--red);
}

.validity-badge.limited {
  border-color: rgba(255, 199, 102, 0.55);
  color: var(--amber);
}

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

.trend-card {
  padding: 0.8rem;
}

.trend-heading h3 {
  margin: 0;
  color: var(--text);
  font-size: 0.92rem;
}

.trend-summary {
  color: var(--muted);
  font-size: 0.76rem;
  text-align: right;
}

svg.line-chart {
  display: block;
  width: 100%;
  height: 144px;
  margin-top: 0.55rem;
  overflow: visible;
}

.chart-grid-line {
  stroke: var(--line);
  stroke-width: 1;
}

.chart-line {
  fill: none;
  stroke: var(--lime);
  stroke-linejoin: round;
  stroke-linecap: round;
  stroke-width: 2.5;
}

.chart-label {
  fill: var(--muted);
  font-size: 10px;
}

.empty-note {
  margin: 0;
  color: var(--muted);
  font-style: italic;
}

.day-list {
  display: grid;
  gap: 0.75rem;
}

.day-card {
  padding: 0.9rem;
}

.day-card h3 {
  margin: 0 0 0.75rem;
  color: var(--text);
  font-size: 1rem;
}

.day-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
}

.day-metric {
  min-width: 0;
}

.day-metric dt {
  color: var(--muted);
  font-size: 0.72rem;
}

.day-metric dd {
  margin: 0.15rem 0 0;
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.session-banner {
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: var(--panel-raised);
  padding: 0.75rem 0.9rem;
  color: var(--text);
}

.session-banner strong {
  color: var(--mint);
}

.health-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  margin-top: 0.75rem;
}

.health-card {
  padding: 0.8rem;
}

.health-card h3 {
  margin: 0;
  color: var(--text);
  font-size: 0.9rem;
}

.health-status {
  color: var(--muted);
  font-size: 0.76rem;
}

.metric-list {
  display: grid;
  gap: 0.45rem;
  margin: 0.7rem 0 0;
}

.metric-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.65rem;
  border-top: 1px solid var(--line);
  padding-top: 0.45rem;
  font-size: 0.78rem;
}

.metric-row dt {
  color: var(--muted);
}

.metric-row dd {
  margin: 0;
  color: var(--text);
  text-align: right;
  overflow-wrap: anywhere;
}

.app-footer {
  padding: 0.5rem 0 1.5rem;
  color: var(--muted);
  text-align: center;
  font-size: 0.8rem;
}

.noscript {
  margin: 1rem;
  border: 1px solid var(--red);
  padding: 1rem;
}

@media (max-width: 900px) {
  .readings-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .health-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .app-header,
  main,
  .status-bar {
    width: min(100% - 1rem, var(--max-width));
  }

  .app-header {
    min-height: 68px;
  }

  .header-actions {
    gap: 0.35rem;
  }

  .header-actions .button {
    padding-inline: 0.65rem;
  }

  main {
    gap: 0.75rem;
  }

  .decision-card,
  .panel {
    border-radius: 16px;
  }

  .decision-card h2 {
    margin-top: 0.7rem;
  }

  .decision-condition {
    margin-bottom: 0.8rem;
  }

  .evidence-grid,
  .trend-grid,
  .health-grid {
    grid-template-columns: 1fr;
  }

  .readings-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .day-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-heading {
    align-items: flex-start;
  }
}

@media (max-width: 420px) {
  .app-header .eyebrow {
    display: none;
  }

  .app-header h1 {
    font-size: 1.25rem;
  }

  .button {
    border-radius: 10px;
  }

  .decision-topline {
    align-items: center;
  }

  .decision-state {
    max-width: 58%;
    line-height: 1.25;
  }

  .decision-meta,
  .section-heading {
    display: grid;
  }

  .section-meta {
    text-align: left;
  }

  .reading-value {
    font-size: 1.2rem;
  }

  .reading-title {
    display: block;
  }

  .validity-badge {
    min-height: 26px;
    margin-top: 0.35rem;
    white-space: normal;
  }

  .day-metrics {
    grid-template-columns: 1fr;
  }

  .modal-actions {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}