:root {
  color-scheme: light;
  --paper: oklch(96.5% 0.012 98);
  --surface: oklch(99% 0.007 98);
  --surface-soft: oklch(93.5% 0.018 96);
  --ink: oklch(25% 0.035 153);
  --muted: oklch(52% 0.025 145);
  --line: oklch(87% 0.018 102);
  --forest: oklch(35% 0.075 153);
  --forest-deep: oklch(26% 0.065 153);
  --moss: oklch(75% 0.09 119);
  --amber: oklch(74% 0.12 76);
  --danger: oklch(48% 0.15 25);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --gutter: clamp(1.1rem, 0.65rem + 2.1vw, 2rem);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  overflow-wrap: break-word;
  background: var(--paper);
  color: var(--ink);
}
*, *::before, *::after { box-sizing: border-box; min-width: 0; }
html { scrollbar-gutter: stable; scroll-padding-block-start: 1rem; }
body { margin: 0; min-height: 100svh; padding-block-end: calc(6.5rem + env(safe-area-inset-bottom, 0px)); }
button, input, select { font: inherit; }
input, select { font-size: max(16px, 1rem); }
button, a, [role="button"] { touch-action: manipulation; }
button { user-select: none; -webkit-user-select: none; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
[hidden] { display: none !important; }
.sr-only { position: absolute; inline-size: 1px; block-size: 1px; padding: 0; margin: -1px; overflow: clip; clip-path: inset(50%); white-space: nowrap; border: 0; }
.auth-screen { display: grid; min-block-size: 100svh; place-items: center; padding: 1rem; background: linear-gradient(145deg, var(--paper), color-mix(in oklch, var(--moss) 18%, var(--paper))); }
.auth-card { inline-size: min(100%, 27rem); padding: clamp(1.4rem, 1rem + 2vw, 2.2rem); border: 1px solid color-mix(in oklch, var(--forest) 16%, var(--line)); border-radius: 1.5rem; background: var(--surface); box-shadow: 0 1.5rem 4rem color-mix(in oklch, var(--forest-deep) 14%, transparent); }
.auth-brand { display: flex; align-items: center; gap: 0.55rem; margin-block-end: 2rem; font-size: 0.94rem; font-weight: 730; letter-spacing: -0.04em; }
.auth-card h1 { margin-block-start: 0.35rem; }
.auth-copy { margin-block-start: 0.65rem; color: var(--muted); font-size: 0.82rem; line-height: 1.55; }
.auth-form { display: grid; gap: 0.7rem; margin-block-start: 1.2rem; }
.auth-form label { display: grid; gap: 0.35rem; color: var(--muted); font-size: 0.72rem; font-weight: 650; }
.auth-form input { min-block-size: 2.9rem; padding: 0.6rem 0.75rem; border: 1px solid var(--line); border-radius: 0.7rem; background: var(--paper); color: var(--ink); }
.auth-submit { min-block-size: 2.9rem; margin-block-start: 0.25rem; }
.auth-divider { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 0.65rem; margin-block: 0.9rem; color: var(--muted); font-size: 0.68rem; }
.auth-divider::before, .auth-divider::after { content: ""; block-size: 1px; background: var(--line); }
.passkey-button { display: flex; align-items: center; justify-content: center; gap: 0.45rem; inline-size: 100%; min-block-size: 2.9rem; border: 1px solid var(--forest); border-radius: 0.7rem; background: transparent; color: var(--forest); font-size: 0.8rem; font-weight: 680; cursor: pointer; }
.auth-error { min-block-size: 1.2em; margin-block-start: 0.75rem; color: var(--danger); font-size: 0.75rem; line-height: 1.4; }
.auth-footnote { margin-block-start: 0.6rem; color: var(--muted); font-size: 0.67rem; line-height: 1.45; text-align: center; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-block-size: 4.4rem; padding-inline: var(--gutter); border-block-end: 1px solid var(--line); background: color-mix(in oklch, var(--paper) 92%, white); }
.brand { display: inline-flex; align-items: center; gap: 0.55rem; text-decoration: none; font-size: 0.94rem; font-weight: 730; letter-spacing: -0.04em; white-space: nowrap; }
.brand-mark { display: grid; place-items: center; inline-size: 1.9rem; aspect-ratio: 1; border-radius: 0.68rem 0.68rem 0.68rem 0.22rem; background: var(--forest); color: var(--moss); font-family: Georgia, serif; font-size: 1.25rem; font-style: italic; }
.connection { display: flex; align-items: center; gap: 0.55rem; color: var(--muted); font-size: 0.74rem; }
.connection-label { max-inline-size: 10rem; overflow: clip; text-overflow: ellipsis; white-space: nowrap; }
.connection-dot { flex: none; inline-size: 0.48rem; aspect-ratio: 1; border-radius: 50%; background: var(--muted); }
.connection-dot.is-connected { background: var(--forest); box-shadow: 0 0 0 0.22rem color-mix(in oklch, var(--forest) 14%, transparent); }
.connect-button { min-block-size: 2.25rem; padding-inline: 0.8rem; border: 1px solid color-mix(in oklch, var(--forest) 28%, var(--line)); border-radius: 999px; background: transparent; color: var(--forest); font-size: 0.76rem; font-weight: 680; cursor: pointer; }
.connect-button:disabled, .export-button:disabled { opacity: 0.55; cursor: wait; }
.page { inline-size: min(100%, 68rem); margin-inline: auto; padding-inline: var(--gutter); }
.view { padding-block-start: clamp(1.25rem, 1rem + 1.5vw, 2.25rem); }
.welcome-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-block-end: 0.8rem; }
.eyebrow { color: var(--forest); font-size: 0.66rem; font-weight: 760; letter-spacing: 0.13em; line-height: 1.4; text-transform: uppercase; }
h1 { margin-block-start: 0.25rem; font-size: clamp(1.85rem, 1.5rem + 1.55vw, 2.65rem); font-weight: 590; letter-spacing: -0.065em; line-height: 1.04; }
h1 em { color: var(--forest); font-family: Georgia, "Times New Roman", serif; font-weight: 400; }
.today-mark { display: grid; flex: none; place-items: center; inline-size: 2.65rem; aspect-ratio: 1; border: 1px solid var(--line); border-radius: 50%; color: var(--forest); font-size: 1.4rem; }
.status-line { display: flex; align-items: center; gap: 0.55rem; min-block-size: 2rem; margin-block-end: 0.65rem; color: var(--muted); font-size: 0.75rem; line-height: 1.4; }
.status-symbol { display: grid; flex: none; place-items: center; inline-size: 1.2rem; aspect-ratio: 1; border-radius: 50%; background: var(--surface-soft); color: var(--forest); font-size: 1.1rem; line-height: 1; }
.status-connected .status-symbol { background: color-mix(in oklch, var(--forest) 12%, var(--surface)); }
.status-error { color: var(--danger); }
.status-error .status-symbol { background: color-mix(in oklch, var(--danger) 10%, var(--surface)); color: var(--danger); }
.weight-card { overflow: clip; padding: clamp(1.25rem, 1rem + 1vw, 1.8rem); border-radius: 1.3rem; background: var(--forest-deep); color: var(--surface); box-shadow: 0 0.8rem 2rem color-mix(in oklch, var(--forest-deep) 12%, transparent); }
.weight-topline { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.eyebrow-light { color: color-mix(in oklch, var(--moss) 84%, white); }
.weight-orbit { display: grid; place-items: center; inline-size: 2.15rem; aspect-ratio: 1; border: 1px solid color-mix(in oklch, white 26%, transparent); border-radius: 50%; color: var(--moss); }
.weight-line { display: flex; align-items: baseline; gap: 0.5rem; margin-block-start: 0.4rem; }
.weight-value { font-size: clamp(3.7rem, 3rem + 4vw, 5.4rem); font-weight: 540; letter-spacing: -0.09em; line-height: 0.98; font-variant-numeric: tabular-nums; }
.weight-unit { color: color-mix(in oklch, white 72%, var(--forest)); font-size: 1rem; }
.latest-date { margin-block-start: 0.55rem; color: color-mix(in oklch, white 68%, var(--forest)); font-size: 0.78rem; }
.capture-state { display: inline-flex; margin-block-start: 0.9rem; padding: 0.38rem 0.65rem; border: 1px solid color-mix(in oklch, white 20%, transparent); border-radius: 999px; color: color-mix(in oklch, white 87%, var(--forest)); font-size: 0.7rem; line-height: 1.3; }
.insight-card { display: grid; grid-template-columns: auto 1fr; align-items: start; gap: 0.9rem; margin-block-start: 0.75rem; padding: 1rem; border: 1px solid color-mix(in oklch, var(--amber) 35%, var(--line)); border-radius: 1rem; background: color-mix(in oklch, var(--amber) 10%, var(--surface)); }
.insight-icon { display: grid; place-items: center; inline-size: 2rem; aspect-ratio: 1; border-radius: 0.65rem; background: color-mix(in oklch, var(--amber) 24%, var(--surface)); color: var(--forest-deep); }
.insight-card .eyebrow { font-size: 0.59rem; }
.insight-card h2 { margin-block-start: 0.15rem; font-size: 1rem; font-weight: 630; letter-spacing: -0.025em; }
.insight-card p:last-child { margin-block-start: 0.25rem; color: var(--muted); font-size: 0.76rem; line-height: 1.5; }
.home-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); gap: 0.65rem; margin-block-start: 0.7rem; }
.shortcut-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 0.8rem; min-block-size: 4.3rem; padding: 0.8rem 0.9rem; border: 1px solid var(--line); border-radius: 0.95rem; background: var(--surface); color: var(--ink); text-align: start; cursor: pointer; }
.shortcut-icon { display: grid; place-items: center; inline-size: 2rem; aspect-ratio: 1; border-radius: 0.65rem; background: var(--surface-soft); color: var(--forest); font-size: 1.2rem; }
.shortcut-card > span:nth-child(2) { display: grid; gap: 0.16rem; }
.shortcut-card strong { font-size: 0.8rem; font-weight: 680; }
.shortcut-card small { color: var(--muted); font-size: 0.69rem; }
.shortcut-arrow { color: var(--forest); font-size: 1rem; }
.profile-card { margin-block-start: 0.7rem; padding-inline: 0.9rem; border: 1px solid var(--line); border-radius: 0.95rem; background: color-mix(in oklch, var(--surface) 70%, var(--paper)); }
.profile-card summary { display: flex; align-items: center; gap: 0.7rem; min-block-size: 3.7rem; cursor: pointer; list-style: none; }
.profile-card summary::-webkit-details-marker { display: none; }
.profile-symbol { display: grid; place-items: center; inline-size: 1.8rem; aspect-ratio: 1; border-radius: 50%; background: var(--surface-soft); color: var(--forest); }
.profile-title { display: grid; flex: 1; gap: 0.08rem; }
.profile-title small { color: var(--muted); font-size: 0.64rem; }
.profile-title strong { font-size: 0.8rem; font-weight: 680; }
.summary-action { color: var(--forest); font-size: 0.72rem; font-weight: 680; }
.profile-card form { padding-block: 0.4rem 1rem; }
.profile-fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr)); gap: 0.75rem; }
.profile-fields > label, .chart-controls label { display: grid; align-content: start; gap: 0.35rem; color: var(--muted); font-size: 0.7rem; font-weight: 650; }
.profile-fields input, .profile-fields select, .chart-controls select { inline-size: 100%; min-block-size: 2.65rem; padding: 0.45rem 0.65rem; border: 1px solid var(--line); border-radius: 0.65rem; background: var(--surface); color: var(--ink); font-size: 0.84rem; }
.input-with-unit { position: relative; display: flex; align-items: center; }
.input-with-unit input { padding-inline-end: 2.7rem; }
.input-with-unit span { position: absolute; inset-inline-end: 0.75rem; color: var(--muted); font-size: 0.78rem; pointer-events: none; }
.profile-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.8rem; margin-block-start: 0.8rem; }
.profile-footer p { max-inline-size: 28rem; color: var(--muted); font-size: 0.7rem; line-height: 1.5; }
.account-panel { display: grid; gap: 0.75rem; padding-block: 1rem; border-block-start: 1px solid var(--line); }
.account-panel > div:first-child { display: grid; gap: 0.18rem; }
.account-label { color: var(--muted); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.1em; }
.account-panel strong { font-size: 0.78rem; font-weight: 650; overflow-wrap: anywhere; }
.account-actions { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.account-button { min-block-size: 2.45rem; padding-inline: 0.8rem; border: 1px solid color-mix(in oklch, var(--forest) 30%, var(--line)); border-radius: 999px; background: transparent; color: var(--forest); font-size: 0.72rem; font-weight: 680; cursor: pointer; }
.account-button-quiet { border-color: var(--line); color: var(--muted); }
.account-status { min-block-size: 1em; color: var(--muted); font-size: 0.7rem; }
.primary-button { min-block-size: 2.7rem; padding-inline: 1rem; border: 0; border-radius: 999px; background: var(--forest); color: white; font-size: 0.78rem; font-weight: 680; cursor: pointer; }
.closing-note { padding-block: 1.3rem 0.3rem; color: var(--muted); font-family: Georgia, "Times New Roman", serif; font-size: 0.88rem; font-style: italic; text-align: center; }
.view-heading { margin-block-end: 1.2rem; }
.view-heading h1 { margin-block-start: 0.35rem; }
.view-description { max-inline-size: 36rem; margin-block-start: 0.55rem; color: var(--muted); font-size: 0.82rem; line-height: 1.55; }
.metrics-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.55rem; margin-block-end: 0.65rem; color: var(--muted); font-size: 0.7rem; }
.meta-dot { inline-size: 0.22rem; aspect-ratio: 1; border-radius: 50%; background: var(--amber); }
.metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); gap: 0.62rem; }
.metric-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; column-gap: 0.7rem; row-gap: 0.1rem; padding: 0.85rem 0.9rem 0.7rem; border: 1px solid var(--line); border-radius: 0.9rem; background: var(--surface); }
.metric-name { grid-column: 1; color: var(--muted); font-size: 0.71rem; font-weight: 620; line-height: 1.35; }
.metric-value { grid-column: 1; margin-block-start: 0.12rem; font-size: clamp(1.35rem, 1.15rem + 0.5vw, 1.7rem); font-weight: 590; letter-spacing: -0.055em; font-variant-numeric: tabular-nums; }
.range-badge { grid-column: 2; grid-row: 1 / span 2; justify-self: end; max-inline-size: 10rem; padding: 0.36rem 0.55rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 0.62rem; line-height: 1.25; text-align: center; }
.range-badge.has-range { border-color: color-mix(in oklch, var(--forest) 26%, var(--line)); background: color-mix(in oklch, var(--forest) 7%, var(--surface)); color: var(--forest); }
.range-badge.no-range { background: var(--paper); }
.evidence-details { grid-column: 1 / -1; margin-block-start: 0.5rem; border-block-start: 1px solid color-mix(in oklch, var(--line) 70%, transparent); }
.evidence-toggle { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; min-block-size: 2rem; color: var(--forest); font-size: 0.68rem; font-weight: 680; cursor: pointer; list-style: none; }
.evidence-toggle::-webkit-details-marker { display: none; }
.evidence-toggle::after { content: "+"; font-size: 1rem; font-weight: 450; }
.evidence-details[open] .evidence-toggle::after { content: "−"; }
.evidence-content { display: grid; gap: 0.35rem; padding-block-end: 0.35rem; color: var(--muted); font-size: 0.68rem; line-height: 1.45; }
.range-detail { color: var(--ink); }
.source-link { justify-self: start; color: var(--forest); font-weight: 680; text-underline-offset: 0.2em; }
.science-note { display: grid; grid-template-columns: auto 1fr; gap: 0.75rem; margin-block-start: 0.8rem; padding: 0.9rem; border: 1px solid var(--line); border-radius: 0.9rem; background: var(--surface-soft); }
.science-mark { display: grid; place-items: center; inline-size: 1.45rem; aspect-ratio: 1; border: 1px solid color-mix(in oklch, var(--forest) 40%, var(--line)); border-radius: 50%; color: var(--forest); font-family: Georgia, serif; font-size: 0.85rem; font-style: italic; }
.science-note strong { font-size: 0.75rem; font-weight: 700; }
.science-note p { margin-block-start: 0.2rem; color: var(--muted); font-size: 0.7rem; line-height: 1.5; }
.history-heading { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 0.8rem; }
.export-button { display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem; min-block-size: 2.65rem; padding-inline: 0.9rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--forest); font-size: 0.75rem; font-weight: 680; cursor: pointer; }
.export-button > span { font-size: 1.05rem; }
.trend-card { padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--surface); }
.trend-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.trend-top h2, .list-heading h2 { margin-block-start: 0.2rem; font-size: 1.1rem; font-weight: 620; letter-spacing: -0.045em; }
.trend-glyph { color: var(--forest); font-size: 1.5rem; }
.chart-controls { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-block-start: 0.8rem; }
.chart-controls label { flex: 1 1 9rem; }
.chart-summary { min-block-size: 1.2rem; margin-block-start: 0.65rem; color: var(--muted); font-size: 0.68rem; }
.chart-wrap { overflow-x: auto; }
.chart-wrap svg { display: block; inline-size: 100%; min-inline-size: 19rem; block-size: auto; overflow: visible; }
.chart-grid { stroke: var(--line); stroke-width: 1; }
.chart-axis { fill: var(--muted); font: 10px ui-sans-serif, system-ui, sans-serif; }
.chart-line { fill: none; stroke: var(--forest); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.chart-point { fill: var(--amber); stroke: var(--forest); stroke-width: 2; }
.chart-empty { display: grid; min-block-size: 8rem; place-content: center; color: var(--muted); font-size: 0.76rem; text-align: center; }
.history-block { margin-block-start: 1.4rem; }
.list-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-block-end: 0.6rem; }
.history-count { color: var(--muted); font-size: 0.7rem; }
.history-list { display: grid; gap: 0.55rem; }
.history-item { padding: 0.85rem; border: 1px solid var(--line); border-radius: 0.9rem; background: var(--surface); }
.history-main { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.35rem 0.7rem; }
.history-date { font-size: 0.75rem; font-weight: 680; }
.history-kind { color: var(--muted); font-size: 0.65rem; }
.history-values { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.75rem 1rem; margin-block-start: 0.6rem; }
.history-weight { margin-inline-end: auto; font-size: 1.25rem; font-weight: 600; letter-spacing: -0.05em; font-variant-numeric: tabular-nums; }
.weight-unit-small { color: var(--muted); font-size: 0.68rem; font-weight: 500; letter-spacing: 0; }
.history-metric { display: grid; gap: 0.08rem; color: var(--muted); font-size: 0.62rem; }
.history-metric strong { color: var(--ink); font-size: 0.7rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.empty-state { padding: 2rem 1rem; border: 1px dashed var(--line); border-radius: 0.9rem; color: var(--muted); font-size: 0.78rem; line-height: 1.6; text-align: center; }
.bottom-nav { position: fixed; z-index: 5; inset-inline-start: 50%; inset-block-end: calc(0.7rem + env(safe-area-inset-bottom, 0px)); display: grid; grid-template-columns: repeat(3, 1fr); inline-size: min(calc(100% - 1.5rem), 27rem); padding: 0.35rem; border: 1px solid color-mix(in oklch, var(--line) 84%, white); border-radius: 1.2rem; background: color-mix(in oklch, var(--surface) 94%, transparent); box-shadow: 0 0.45rem 1.6rem color-mix(in oklch, var(--forest-deep) 13%, transparent); transform: translateX(-50%); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.nav-tab { display: grid; justify-items: center; align-content: center; gap: 0.1rem; min-block-size: 3.35rem; padding-block: 0.3rem; border: 0; border-radius: 0.9rem; background: transparent; color: var(--muted); font-size: 0.64rem; font-weight: 640; cursor: pointer; }
.nav-icon { font-size: 1.15rem; line-height: 1.1; }
.nav-tab.is-active { background: var(--forest); color: white; }
:focus-visible { outline: max(2px, 0.08em) solid var(--forest); outline-offset: 3px; }
.primary-button:focus-visible { outline-color: var(--amber); }
button:active { transform: scale(0.98); }
summary:active { color: var(--forest); }
@media (hover: hover) and (pointer: fine) {
  .connect-button:hover, .export-button:hover { background: color-mix(in oklch, var(--forest) 7%, var(--surface)); }
  .primary-button:hover { background: var(--forest-deep); }
  .shortcut-card:hover, .metric-card:hover, .history-item:hover { border-color: color-mix(in oklch, var(--forest) 28%, var(--line)); }
  .source-link:hover { color: var(--forest-deep); }
}
@media (prefers-reduced-motion: no-preference) {
  button { transition: transform 130ms var(--ease-out), background-color 160ms var(--ease-out), border-color 160ms var(--ease-out), color 160ms var(--ease-out); }
  .metric-card, .history-item { transition: border-color 160ms var(--ease-out); }
}