:root {
  --ink: #111315;
  --muted: #5b636b;
  --paper: #f7f7f4;
  --panel: #ffffff;
  --panel-muted: #eeeeea;
  --line: #c9cbc7;
  --line-strong: #7d858c;
  --accent: #1f4f6f;
  --success: #245b43;
  --warning: #7a5200;
  --danger: #8a2f2b;
  --shadow: 0 1px 0 rgba(17, 19, 21, 0.08);
  --mono-stack: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--mono-stack);
  font-size: 15px;
  line-height: 1.45;
  background: var(--paper);
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0.9rem clamp(1rem, 3vw, 1.5rem);
  border-bottom: 1px solid var(--line);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-mark::before {
  content: "//";
  color: var(--accent);
  font-weight: 900;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.site-header nav a,
.nav-button {
  color: var(--muted);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.nav-button {
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.page-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 1.5rem);
}

.flash {
  margin: 0 0 1rem;
  border: 1px solid var(--line-strong);
  border-left-width: 0.35rem;
  padding: 0.7rem 0.85rem;
  color: var(--ink);
  background: var(--panel);
}

.hero-card,
.auth-card,
.warm-card {
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: clamp(1rem, 3vw, 1.5rem);
}

.eyebrow,
.card-kicker {
  margin: 0 0 0.55rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 24ch;
  font-size: clamp(2rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.25rem, 3vw, 2rem);
}

h3 {
  font-size: 1rem;
}

.hero-copy,
.warm-card p,
.auth-card p {
  max-width: 56rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.hero-actions,
.card-grid {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.3rem;
  padding: 0.55rem 0.8rem;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.button-primary {
  color: var(--paper);
  background: var(--ink);
}

.button-secondary {
  color: var(--ink);
  background: var(--panel-muted);
}

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

.warm-card,
.auth-card {
  padding: 1rem;
}

.accent-card {
  background: var(--panel-muted);
}

.auth-shell {
  display: grid;
  min-height: 66vh;
  place-items: center;
}

.auth-card {
  width: min(100%, 34rem);
}

.sign-in-form {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}

.sign-in-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sign-in-form input,
.sign-in-form select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 0.25rem;
  padding: 0.65rem 0.7rem;
  color: var(--ink);
  font: inherit;
  background: var(--panel);
}

.checkbox-label {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.sign-in-form button:disabled,
.sign-in-form input[type="submit"]:disabled {
  cursor: not-allowed;
  opacity: 0.72;
}

.integration-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.integration-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: start;
}

.integration-card h2 {
  max-width: 28ch;
}

.status-pill {
  border: 1px solid var(--line-strong);
  border-radius: 0.25rem;
  padding: 0.3rem 0.55rem;
  color: var(--paper);
  background: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-connected .status-pill {
  background: var(--success);
}

.status-syncing .status-pill {
  background: var(--warning);
}

.status-error .status-pill {
  background: var(--danger);
}

.status-detail {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--danger);
  font-weight: 800;
}

.sync-history {
  grid-column: 1 / -1;
  border-top: 1px solid var(--line);
  padding-top: 0.75rem;
}

.sync-history h3 {
  margin: 0 0 0.4rem;
}

.sync-history ul {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sync-history li {
  display: grid;
  grid-template-columns: minmax(7rem, auto) minmax(6rem, auto) 1fr;
  gap: 0.75rem;
  color: var(--muted);
}

.sync-history strong {
  color: var(--ink);
}

.goal-cockpit-card,
.empty-state,
.body-metrics-card,
.trend-card,
.insights-card {
  margin-top: 1rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
  margin: 0.85rem 0;
}

.metric-grid div,
.signal-panel {
  border: 1px solid var(--line);
  border-radius: 0.3rem;
  padding: 0.75rem;
  background: var(--panel-muted);
}

.metric-grid dt,
.signal-label {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.metric-grid dd,
.signal-value {
  margin: 0.25rem 0 0;
  font-size: 1.25rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.notice-panel {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  border: 1px solid var(--line-strong);
  border-radius: 0.3rem;
  padding: 0.75rem;
  background: var(--panel-muted);
  color: var(--muted);
}

.notice-panel strong {
  color: var(--ink);
}

.metric-trend-graph {
  width: 100%;
  max-width: 36rem;
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 0.3rem;
  padding: 0.5rem;
  background: var(--panel);
}

.sr-fallback {
  color: var(--muted);
}

.insight-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.insight-item {
  border: 1px solid var(--line);
  border-radius: 0.3rem;
  padding: 0.75rem;
  background: var(--panel-muted);
}

.insight-item p {
  color: var(--muted);
}

.insight-item small {
  color: var(--muted);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 760px) {
  .card-grid,
  .cockpit-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .site-header,
  .integration-card,
  .sync-history li {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }

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