:root {
  --bg: #eef2ee; --card: #ffffff; --fg: #17221b; --muted: #5a695f; --line: #cdd7cf;
  --brand: #1f4d33; --brand-fg: #f1f7f2; --water: #1668a8; --water-fg: #ffffff;
  --due: #c2410c; --watch: #a37c00; --ok: #2f7d4a; --unknown: #7a867e;
  --sans: system-ui, -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0d1310; --card: #151d18; --fg: #e3ebe5; --muted: #93a399; --line: #2a3830;
  --brand: #12301e; --brand-fg: #dcebe0; --water: #3d93d6; --water-fg: #06121c;
  --due: #fb8c4b; --watch: #e0b43c; --ok: #5fc181; --unknown: #8a978f;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--fg); font: 16px/1.55 var(--sans); -webkit-text-size-adjust: 100%; }
button, input, textarea { font: inherit; color: inherit; }
a { color: inherit; }

.bar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top));
  background: var(--brand); color: var(--brand-fg); border-bottom: 3px solid var(--water); }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 700; font-size: 19px; letter-spacing: .04em; min-height: 44px; }
.brand svg { width: 22px; height: 22px; fill: var(--water); }
.theme { min-width: 44px; min-height: 44px; border: 1px solid color-mix(in srgb, var(--brand-fg) 45%, transparent);
  background: transparent; color: var(--brand-fg); border-radius: 2px; cursor: pointer; }

main { max-width: 640px; margin: 0 auto; padding: 16px 16px 96px; }
h1 { font-size: 26px; line-height: 1.3; margin: 8px 0 4px; }
h2 { font-size: 15px; margin: 28px 0 10px; color: var(--muted); letter-spacing: .06em; }
h1::after, h2::after { content: ""; display: block; width: 28px; height: 3px; background: var(--water); margin-top: 6px; }
.sub { color: var(--muted); margin: 0 0 12px; font-size: 14px; }
.num, time, .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

.hint { display: flex; align-items: center; gap: 10px; padding: 12px 14px; margin: 14px 0; background: var(--card);
  border: 1px solid var(--line); border-left: 6px solid var(--unknown); }
.hint[data-level="due"] { border-left-color: var(--due); }
.hint[data-level="watch"] { border-left-color: var(--watch); }
.hint[data-level="ok"] { border-left-color: var(--ok); }
.hint strong { font-size: 17px; }

.since { display: flex; align-items: baseline; gap: 8px; margin-top: 4px; }
.since .big { font-size: 40px; font-weight: 700; line-height: 1; }
.since .meta { color: var(--muted); font-size: 14px; }

.gauge { position: relative; height: 14px; margin: 18px 0 30px; background: var(--card); border: 1px solid var(--line); }
.gauge .fill { position: absolute; inset: 0 auto 0 0; background: var(--ok); }
.gauge[data-level="watch"] .fill { background: var(--watch); }
.gauge[data-level="due"] .fill { background: var(--due); }
.gauge .tick { position: absolute; top: -5px; bottom: -5px; width: 2px; background: var(--fg); }
.gauge .tick span { position: absolute; top: 22px; left: 50%; transform: translateX(-50%); white-space: nowrap; font-size: 12px; color: var(--muted); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 16px;
  border: 1px solid var(--line); background: var(--card); border-radius: 2px; cursor: pointer; text-decoration: none; }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary { width: 100%; min-height: 64px; font-size: 21px; font-weight: 700; background: var(--water); color: var(--water-fg); border-color: var(--water); }
.btn.primary svg { width: 22px; height: 22px; fill: currentColor; }
.btn.danger { color: var(--due); }
.btn.small { min-height: 44px; padding: 0 12px; font-size: 14px; }
.row { display: flex; gap: 8px; }
.row > * { flex: 1; }
.weigh { margin-top: 10px; }
.weigh .label { flex: 0 0 auto; align-self: center; color: var(--muted); font-size: 14px; }
.weigh .btn { font-size: 17px; }

.confirm { margin-top: 10px; padding: 12px; border: 1px solid var(--watch); background: var(--card); }
.confirm p { margin: 0 0 10px; }

.list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.list > li { border-bottom: 1px solid var(--line); }
.plant-row { display: grid; grid-template-columns: 8px 1fr auto; gap: 12px; align-items: center; padding: 14px 4px; text-decoration: none; min-height: 64px; }
.plant-row .dot { width: 8px; align-self: stretch; background: var(--unknown); }
.plant-row[data-level="due"] .dot { background: var(--due); }
.plant-row[data-level="watch"] .dot { background: var(--watch); }
.plant-row[data-level="ok"] .dot { background: var(--ok); }
.plant-row .name { font-size: 18px; font-weight: 600; }
.plant-row .info { color: var(--muted); font-size: 13px; }
.plant-row .when { text-align: right; font-size: 14px; }
.plant-row .when small { display: block; color: var(--muted); font-size: 12px; }

.ev { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; padding: 10px 2px; }
.ev .what { font-weight: 600; }
.ev .what .w-light { color: var(--due); }
.ev .what .w-heavy { color: var(--ok); }
.ev time, .ev .by { color: var(--muted); font-size: 13px; }
.ev .note { grid-column: 1 / -1; white-space: pre-wrap; overflow-wrap: anywhere; }
.ev .del { grid-row: 1 / 3; grid-column: 2; }

form, .stack { display: grid; gap: 12px; }
label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); }
input[type="text"], textarea { width: 100%; min-height: 48px; padding: 10px 12px; border: 1px solid var(--line); background: var(--card); border-radius: 2px; font-size: 16px; }
textarea { min-height: 80px; resize: vertical; }
details { margin-top: 28px; border-top: 1px solid var(--line); padding-top: 8px; }
summary { min-height: 44px; display: flex; align-items: center; gap: 8px; cursor: pointer; color: var(--muted); list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::before { content: "＋"; font-family: var(--mono); color: var(--water); }
details[open] > summary::before { content: "－"; }
.since { flex-wrap: wrap; }

.url { padding: 10px 12px; background: var(--card); border: 1px dashed var(--line); font-family: var(--mono); font-size: 13px; overflow-wrap: anywhere; }
.qr { display: flex; justify-content: center; padding: 16px; background: #fff; border: 1px solid var(--line); }
.qr svg { width: 220px; height: 220px; }
.steps { padding-left: 20px; margin: 0; }
.steps li { margin: 4px 0; }
.warn { font-size: 13px; color: var(--muted); border-left: 3px solid var(--watch); padding-left: 10px; }
.empty { padding: 32px 0; color: var(--muted); }
.who { margin-top: 32px; display: flex; gap: 8px; align-items: end; }
.who label { flex: 1; }

.toast { position: fixed; left: 16px; right: 16px; bottom: max(16px, env(safe-area-inset-bottom)); z-index: 10; max-width: 608px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 8px 8px 14px;
  background: var(--fg); color: var(--bg); border-radius: 2px; }
.toast[hidden] { display: none; }
.toast button { min-height: 44px; padding: 0 14px; background: transparent; color: var(--bg); border: 1px solid currentColor; border-radius: 2px; cursor: pointer; }

@media (min-width: 900px) {
  main { padding-top: 32px; }
  h1 { font-size: 32px; }
}