:root {
  --bg: #f4f5f7; --card: #ffffff; --text: #16181d; --muted: #6b7280; --border: #e3e5e9;
  --accent: #1f6fd1; --accent-bg: #e6f0fb; --warn: #b4540a; --danger: #c0392b; --ok: #2e7d32;
  --s1: #cfe3f8; --s2: #a9cdf2; --s3: #7fb3ea; --s4: #4f94de; --s5: #2f76c8; --s6: #1d5aa3; --s7: #123d73;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14161a; --card: #1d2026; --text: #eceef2; --muted: #9aa1ad; --border: #2c3038;
    --accent: #4fa3ff; --accent-bg: #1b2b40; --warn: #f0a05a; --danger: #ef6b5b; --ok: #6ccf74;
    --s1: #1e3550; --s2: #234a73; --s3: #2a5f96; --s4: #3576b9; --s5: #4b8fd6; --s6: #74abe6; --s7: #a8cdf3;
    color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  padding-bottom: env(safe-area-inset-bottom); }
main { max-width: 720px; margin: 0 auto; padding: 12px 16px 40px; }
h2, h3 { margin: 0 0 6px; font-weight: 600; } h3 { font-size: 16px; }
.top { position: sticky; top: 0; z-index: 5; background: var(--bg); border-bottom: 1px solid var(--border); padding-top: env(safe-area-inset-top); }
.tabs { display: flex; max-width: 720px; margin: 0 auto; padding: 0 16px; }
.tab { flex: 1; background: none; border: 0; border-bottom: 2px solid transparent; padding: 12px 0; color: var(--muted); font-size: 15px; cursor: pointer; }
.tab[data-view="settings"] { flex: 0 0 48px; }
.tab.active { color: var(--text); border-color: var(--accent); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; margin: 12px 0; }
.center { text-align: center; }
.big { font-size: 44px; font-weight: 600; margin: 0; font-variant-numeric: tabular-nums; }
.small { font-size: 13px; } .muted { color: var(--muted); } .warn { color: var(--warn); } .okc { color: var(--ok); }
p { margin: 0; } .hidden { display: none !important; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; } .between { justify-content: space-between; } .baseline { align-items: baseline; }
.bar { height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; margin: 6px 0; }
.bar > div { height: 100%; background: var(--accent); width: 0; transition: width .3s; }
.bar > div.over { background: var(--danger); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.chip { border: 1px solid var(--border); background: transparent; color: var(--text); border-radius: 10px; padding: 8px 12px; font-size: 15px; cursor: pointer; min-width: 42px; }
.chip.active { border-color: var(--accent); background: var(--accent-bg); color: var(--accent); font-weight: 600; }
#strengths .chip { flex: 1; min-width: 0; padding: 10px 0; }
.chip.over { border-style: dashed; color: var(--warn); }
.logbtn { display: block; width: 100%; margin-top: 16px; padding: 22px; font-size: 22px; font-weight: 600; border: 0; border-radius: 14px;
  background: var(--accent); color: #fff; cursor: pointer; }
.logbtn:active { transform: scale(.98); }
button.primary, button.secondary, button.danger, .btnlink { border-radius: 10px; padding: 9px 14px; font-size: 15px; cursor: pointer; text-decoration: none; display: inline-block; }
button.primary { background: var(--accent); color: #fff; border: 0; }
button.secondary, .btnlink { background: transparent; color: var(--text); border: 1px solid var(--border); }
button.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
input { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 8px 10px; }
label { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 8px 0; font-size: 14px; }
label input { width: 55%; }
.backdate { margin-top: 12px; } .backdate .row { margin-top: 8px; }
.list { list-style: none; padding: 0; margin: 6px 0 0; }
.list li { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-top: 1px solid var(--border); font-size: 15px; }
.list li:first-child { border-top: 0; }
.list .gap { color: var(--muted); font-size: 13px; }
.list button { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 13px; }
.pill { display: inline-block; min-width: 24px; text-align: center; border-radius: 6px; padding: 0 6px; font-size: 13px; font-weight: 600; margin-right: 6px; }
.seg { display: flex; gap: 6px; margin-top: 4px; }
.seg button { flex: 1; border: 1px solid var(--border); background: transparent; color: var(--text); border-radius: 10px; padding: 8px; cursor: pointer; }
.seg button.active { border-color: var(--accent); color: var(--accent); background: var(--accent-bg); }
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; margin-top: 12px; }
.metric { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; }
.metric .l { font-size: 12px; color: var(--muted); } .metric .v { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }
.metric .d { font-size: 12px; }
svg text { fill: var(--muted); font-size: 11px; }
.hbar { display: grid; grid-template-columns: 88px 1fr 40px; gap: 8px; align-items: center; font-size: 13px; margin: 4px 0; }
.hbar .t { height: 12px; border-radius: 3px; background: var(--accent); }
.hbar .n { text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }
.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; font-variant-numeric: tabular-nums; }
th, td { text-align: right; padding: 6px 4px; border-top: 1px solid var(--border); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; } th { color: var(--muted); font-weight: 500; border-top: 0; }
td.bad { color: var(--warn); }
dialog { border: 1px solid var(--border); border-radius: 14px; background: var(--card); color: var(--text); width: min(420px, 92vw); }
dialog::backdrop { background: rgba(0,0,0,.45); }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-size: 14px; z-index: 10; }
.toast button { background: none; border: 0; color: var(--accent); font-weight: 600; margin-left: 10px; cursor: pointer; }
.login { max-width: 340px; padding-top: 18vh; } .login input { width: 100%; text-align: center; font-size: 20px; letter-spacing: 4px; margin-top: 8px; }