:root {
  --bg: #f4f1ec; --surface: rgba(255,255,255,.72); --surface-solid: #fbfaf7;
  --ink: #292724; --muted: #89837b; --line: rgba(67,61,54,.11);
  --sage: #708c7c; --sage-soft: #dce7df; --rose: #b8737e; --rose-soft: #f2dfe2;
  --blue: #6e8da2; --ochre: #bd9256; --shadow: 0 22px 70px rgba(61,52,42,.09);
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", sans-serif;
  --serif: "Songti SC", "Noto Serif SC", "STSong", Georgia, serif;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #181a19; --surface: rgba(37,39,37,.78); --surface-solid: #222522;
  --ink: #e9e5dd; --muted: #99968f; --line: rgba(255,255,255,.09);
  --sage: #93b2a0; --sage-soft: #2f4036; --rose: #d6919c; --rose-soft: #4b3035;
  --blue: #8eafc3; --ochre: #d4ac72; --shadow: 0 22px 70px rgba(0,0,0,.28); color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; min-height: 100%; }
body {
  background: radial-gradient(circle at 12% 8%, color-mix(in srgb, var(--sage) 13%, transparent), transparent 29%),
    radial-gradient(circle at 92% 82%, color-mix(in srgb, var(--rose) 10%, transparent), transparent 31%), var(--bg);
  color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
.health-shell { width: min(1180px, calc(100% - 34px)); margin: 0 auto; padding: 38px 0 80px; }
.health-header { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 30px; }
.back-home { display: inline-block; color: var(--muted); text-decoration: none; font-size: 13px; margin-bottom: 26px; }
.eyebrow, .section-kicker { display: block; color: var(--sage); font-size: 10px; font-weight: 800; letter-spacing: .17em; }
.health-header h1 { font: 500 clamp(38px, 6vw, 64px)/1.1 var(--serif); letter-spacing: .05em; margin: 7px 0 8px; }
.health-header p { margin: 0; color: var(--muted); font-family: var(--serif); }
.header-actions { display: flex; align-items: center; gap: 9px; }
.round-button, .period-nav button, .month-switch button {
  border: 1px solid var(--line); background: var(--surface); border-radius: 999px; width: 42px; height: 42px;
}
.primary-button { border: 0; border-radius: 999px; padding: 12px 19px; background: var(--sage); color: #fff; font-weight: 650; }
.login-card {
  width: min(100%, 560px); margin: 80px auto; padding: 32px; display: grid; grid-template-columns: auto 1fr;
  gap: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: 28px; box-shadow: var(--shadow); backdrop-filter: blur(18px);
}
.login-mark { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 19px; background: var(--sage-soft); color: var(--sage); font: 600 25px var(--serif); }
.login-card h2 { font: 600 23px var(--serif); margin: 2px 0 8px; }
.login-card p { color: var(--muted); font-size: 13px; line-height: 1.7; margin: 0; }
.login-card form { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.login-card input { min-width: 0; border: 1px solid var(--line); background: var(--surface-solid); border-radius: 999px; padding: 12px 16px; outline: none; }
.login-card input:focus { border-color: var(--sage); }
.login-card .status { grid-column: 1 / -1; color: var(--rose); min-height: 20px; }
.period-nav { display: grid; grid-template-columns: 42px minmax(170px, auto) 42px; justify-content: center; align-items: center; gap: 10px; margin: 0 0 18px; }
.period-title { width: auto !important; padding: 0 18px; color: var(--ink); font-weight: 650; }
.summary-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 12px; }
.summary-card { min-width: 0; padding: 17px; border: 1px solid var(--line); border-radius: 19px; background: var(--surface); }
.summary-label { color: var(--muted); font-size: 11px; margin-bottom: 11px; }
.summary-value { font: 500 24px/1 var(--serif); white-space: nowrap; }
.summary-value small { color: var(--muted); font: 11px var(--sans); margin-left: 3px; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 24px; backdrop-filter: blur(16px); }
.sleep-panel { padding: 24px; margin-bottom: 12px; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 21px; }
.panel-heading h2 { font: 600 19px var(--serif); margin: 5px 0 0; }
.panel-note { color: var(--muted); font-size: 11px; }
.sleep-chart { display: grid; grid-template-columns: repeat(7, minmax(42px,1fr)); gap: 12px; align-items: end; min-height: 214px; }
.sleep-day { display: grid; grid-template-rows: 18px 150px auto; gap: 8px; text-align: center; color: var(--muted); font-size: 10px; cursor: pointer; border: 0; padding: 0; background: transparent; }
.sleep-value { color: var(--ink); font-size: 11px; }
.sleep-track { position: relative; align-self: stretch; border-radius: 13px; overflow: hidden; background: color-mix(in srgb, var(--sage) 7%, transparent); }
.sleep-track::after { content: ""; position: absolute; left: 0; right: 0; bottom: 80%; border-top: 1px dashed color-mix(in srgb, var(--sage) 42%, transparent); }
.sleep-bar { position: absolute; bottom: 0; left: 20%; right: 20%; min-height: 2px; border-radius: 10px 10px 5px 5px; background: linear-gradient(180deg, var(--sage), color-mix(in srgb, var(--sage) 65%, var(--blue))); }
.sleep-day.today .sleep-label { color: var(--sage); font-weight: 800; }
.trend-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 12px; }
.mini-trend { padding: 19px 20px 14px; overflow: hidden; }
.metric-label { color: var(--muted); font-size: 11px; }
.metric-label span { opacity: .72; }
.metric-value { font: 500 27px var(--serif); margin: 8px 0 5px; }
.mini-trend svg { display: block; width: 100%; height: 72px; overflow: visible; }
.trend-line { fill: none; stroke: var(--sage); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.trend-area { fill: color-mix(in srgb, var(--sage) 12%, transparent); }
.trend-dot { fill: var(--surface-solid); stroke: var(--sage); stroke-width: 2; }
[data-metric="resting_hr"] .trend-line, [data-metric="resting_hr"] .trend-dot { stroke: var(--rose); }
[data-metric="resting_hr"] .trend-area { fill: color-mix(in srgb, var(--rose) 11%, transparent); }
[data-metric="weight"] .trend-line, [data-metric="weight"] .trend-dot { stroke: var(--blue); }
[data-metric="weight"] .trend-area { fill: color-mix(in srgb, var(--blue) 11%, transparent); }
.empty-chart { fill: var(--muted); font: 11px var(--sans); }
.two-column { display: grid; grid-template-columns: .92fr 1.08fr; gap: 12px; margin-bottom: 12px; }
.activity-panel, .cycle-panel, .week-records { padding: 22px; }
.activity-rows { display: grid; gap: 14px; }
.activity-row { display: grid; grid-template-columns: 28px 1fr 72px; align-items: center; gap: 10px; color: var(--muted); font-size: 11px; }
.activity-track { height: 8px; border-radius: 99px; background: color-mix(in srgb, var(--ochre) 11%, transparent); overflow: hidden; }
.activity-track span { display: block; height: 100%; border-radius: inherit; background: var(--ochre); }
.activity-number { text-align: right; color: var(--ink); }
.month-switch { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; }
.month-switch button { width: 30px; height: 30px; background: transparent; }
.calendar-weekdays, .cycle-calendar { display: grid; grid-template-columns: repeat(7,1fr); gap: 5px; }
.calendar-weekdays { color: var(--muted); text-align: center; font-size: 10px; margin-bottom: 7px; }
.calendar-day { position: relative; aspect-ratio: 1; display: grid; place-items: center; border: 0; border-radius: 12px; background: transparent; font-size: 11px; }
.calendar-day:hover { background: var(--rose-soft); }
.calendar-day.outside { color: var(--muted); opacity: .36; }
.calendar-day.period { background: var(--rose-soft); color: var(--rose); font-weight: 800; }
.calendar-day.period::after { content: ""; position: absolute; bottom: 6px; width: 4px; height: 4px; border-radius: 50%; background: var(--rose); }
.calendar-day.today { outline: 1px solid var(--sage); outline-offset: -2px; }
.record-list { display: grid; gap: 8px; }
.record-row { display: grid; grid-template-columns: 90px repeat(4,1fr) auto; gap: 12px; align-items: center; padding: 12px 13px; border-radius: 14px; border: 1px solid var(--line); background: color-mix(in srgb, var(--surface-solid) 52%, transparent); cursor: pointer; }
.record-row:hover { border-color: var(--sage); }
.record-date { font-weight: 650; }
.record-cell { color: var(--muted); font-size: 11px; }
.record-cell strong { display: block; color: var(--ink); font-size: 12px; margin-bottom: 2px; }
.period-pill { justify-self: end; color: var(--rose); background: var(--rose-soft); border-radius: 999px; padding: 5px 9px; font-size: 10px; }
.empty-state { color: var(--muted); text-align: center; font-size: 12px; padding: 30px 10px; }
.health-footer { display: flex; justify-content: space-between; gap: 18px; align-items: center; color: var(--muted); font-size: 11px; padding: 26px 4px 0; }
.health-footer button { color: var(--muted); border: 0; background: transparent; text-decoration: underline; }
.modal-backdrop { position: fixed; inset: 0; z-index: 40; background: rgba(21,22,20,.3); opacity: 0; pointer-events: none; transition: .2s; }
.modal-backdrop.visible { opacity: 1; pointer-events: auto; }
.record-sheet { position: fixed; z-index: 50; left: 50%; bottom: 0; width: min(100%, 720px); max-height: 88dvh; overflow: auto; transform: translate(-50%, 105%); transition: transform .24s ease; padding: 25px 25px max(28px, env(safe-area-inset-bottom)); background: var(--surface-solid); border: 1px solid var(--line); border-radius: 27px 27px 0 0; box-shadow: var(--shadow); }
.record-sheet.visible { transform: translate(-50%, 0); }
.sheet-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 21px; }
.sheet-head h2 { font: 600 22px var(--serif); margin: 5px 0 0; }
.sheet-head > button { border: 0; background: transparent; color: var(--muted); font-size: 26px; }
#recordForm { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
#recordForm label { display: grid; gap: 6px; color: var(--muted); font-size: 11px; }
#recordForm label span { opacity: .75; }
#recordForm input, #recordForm select, #recordForm textarea { width: 100%; min-width: 0; color: var(--ink); border: 1px solid var(--line); border-radius: 11px; padding: 10px 11px; background: var(--surface); outline: none; }
#recordForm input:focus, #recordForm select:focus, #recordForm textarea:focus { border-color: var(--sage); }
.full-field { grid-column: 1 / -1; }
.form-section { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; border: 1px solid var(--line); border-radius: 15px; padding: 13px; margin: 0; }
.form-section legend { color: var(--ink); font-size: 12px; padding: 0 5px; }
.check-label { display: flex !important; flex-direction: row; align-items: center; gap: 8px !important; color: var(--ink) !important; }
.check-label input { width: auto !important; }
.status { min-height: 18px; margin: 0; color: var(--rose); font-size: 11px; }
.form-buttons { display: flex; justify-content: flex-end; gap: 10px; }
.danger-button { margin-right: auto; border: 0; color: var(--rose); background: transparent; }

@media (max-width: 860px) {
  .summary-grid { grid-template-columns: repeat(3,1fr); }
  .two-column { grid-template-columns: 1fr; }
  .record-row { grid-template-columns: 80px repeat(2,1fr) auto; }
  .record-cell.optional { display: none; }
}
@media (max-width: 620px) {
  .health-shell { width: min(100% - 22px, 1180px); padding-top: 24px; }
  .health-header { align-items: flex-start; flex-direction: column; }
  .back-home { margin-bottom: 18px; }
  .header-actions { width: 100%; justify-content: space-between; }
  .login-card { grid-template-columns: 1fr; margin: 44px auto; padding: 24px; }
  .login-mark { width: 50px; height: 50px; }
  .login-card form { grid-column: auto; grid-template-columns: 1fr; }
  .login-card .status { grid-column: auto; }
  .summary-grid { grid-template-columns: repeat(2,1fr); }
  .sleep-panel { padding: 19px 13px; }
  .sleep-chart { gap: 5px; }
  .sleep-day { grid-template-rows: 17px 132px auto; }
  .trend-grid { grid-template-columns: 1fr; }
  .record-row { grid-template-columns: 72px 1fr auto; }
  .record-cell.mobile-hide { display: none; }
  .health-footer { align-items: flex-start; flex-direction: column; }
  #recordForm { grid-template-columns: 1fr; }
  #recordForm > label, .full-field, .form-section { grid-column: 1; }
  .form-section { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { transition-duration: .01ms !important; } }