:root {
  --bg: #f7f6f1;
  --fg: #1f2a22;
  --muted: #6b746c;
  --card: #ffffff;
  --line: #dfe3dc;
  --accent: #2f6b3a;
  --accent-fg: #ffffff;
  --danger: #b3261e;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141814;
    --fg: #e6ebe4;
    --muted: #9aa59b;
    --card: #1d221d;
    --line: #2f362f;
    --accent: #6fbf7c;
    --accent-fg: #0d1a10;
    --danger: #f2b8b5;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
}
a { color: var(--accent); }
img { max-width: 100%; display: block; }
code { font-family: ui-monospace, Menlo, monospace; letter-spacing: 0.05em; }
h1 { font-size: 1.5rem; margin: 0.5rem 0; line-height: 1.3; }
h2 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; }
.muted { color: var(--muted); }
.error { color: var(--danger); }

header.site {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.75rem 16px; border-bottom: 1px solid var(--line); background: var(--card);
}
header.site .brand { font-weight: 700; text-decoration: none; color: var(--fg); }
header.site nav { display: flex; gap: 1rem; align-items: center; }
main { max-width: 960px; margin: 0 auto; padding: 16px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 0 0 16px; }
.card.narrow { max-width: 480px; margin-inline: auto; }
.notice { border-color: var(--accent); }
.hero { padding: 2rem 0; }
.hero h1 { font-size: 1.8rem; }

button, .button {
  font: inherit; display: inline-block; padding: 0.55rem 1rem; border-radius: 8px;
  border: 1px solid var(--line); background: var(--card); color: var(--fg);
  text-decoration: none; cursor: pointer;
}
button.primary, .button.primary, .stack button, .row > button, .open-id button {
  background: var(--accent); color: var(--accent-fg); border-color: var(--accent);
}
button.link { border: 0; background: none; padding: 0; color: var(--accent); text-decoration: underline; }
button.link.danger { color: var(--danger); }
input, select {
  font: inherit; padding: 0.5rem 0.6rem; border-radius: 8px; border: 1px solid var(--line);
  background: var(--bg); color: var(--fg); max-width: 100%;
}
form.inline { display: inline; }
.stack { display: grid; gap: 0.9rem; }
.stack label { display: grid; gap: 0.25rem; }
.stack label.check, label.check { display: flex; gap: 0.5rem; align-items: center; }
.row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }

.open-id { display: flex; gap: 0.5rem; margin: 1rem 0; }
.open-id input { flex: 1; min-width: 0; text-transform: uppercase; }

.plant-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.plant-grid a { display: grid; gap: 2px; text-decoration: none; color: var(--fg); background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; padding-bottom: 8px; }
.plant-grid a > :not(img):not(.noimg) { padding: 0 8px; }
.plant-grid img, .plant-grid .noimg { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.plant-grid .noimg { display: grid; place-items: center; background: var(--line); color: var(--muted); font-size: 0.85rem; }
.plant-grid em, .sci { font-style: italic; color: var(--muted); font-size: 0.9rem; }
.plant-grid small { color: var(--muted); font-size: 0.8rem; }

.plant-head .sci { margin: 0; font-size: 1rem; }
.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.compare-pick { display: flex; gap: 0.5rem; align-items: center; margin-bottom: 0.5rem; }
.compare-pick select { flex: 1; min-width: 0; }
.compare { position: relative; max-width: 480px; aspect-ratio: 3 / 4; border-radius: 10px; overflow: hidden; background: #000; touch-action: pan-y; }
.compare img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.compare-top { position: absolute; inset: 0; }
.compare-line { position: absolute; top: 0; bottom: 0; width: 2px; margin-left: -1px; background: #fff; box-shadow: 0 0 4px rgba(0,0,0,.5); pointer-events: none; }
.compare input[type=range] { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }

.timeline { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.timeline li { background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.timeline img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.timeline .meta { padding: 6px 8px 8px; display: flex; flex-wrap: wrap; gap: 0.25rem 0.5rem; align-items: baseline; font-size: 0.9rem; }
.timeline .meta p { margin: 0; width: 100%; }
.label { background: var(--accent); color: var(--accent-fg); border-radius: 999px; padding: 0 0.5rem; font-size: 0.8rem; }

.tag-preview img { height: 280px; width: auto; background: #fff; border-radius: 6px; padding: 4px; }
table.tags { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table.tags th, table.tags td { text-align: left; padding: 6px 4px; border-bottom: 1px solid var(--line); }
.card { overflow-x: auto; }
.users { padding-left: 1.2rem; }

/* ---- 撮影画面 ---- */
body.bare { background: #000; color: #fff; overflow: hidden; }
body.bare main { padding: 0; max-width: none; }
.camera { position: fixed; inset: 0; display: flex; flex-direction: column; justify-content: center; align-items: center; }
.viewfinder { position: relative; width: min(100vw, calc(100dvh * 3 / 4)); aspect-ratio: 3 / 4; overflow: hidden; background: #111; }
.viewfinder video, .viewfinder img, .viewfinder canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.viewfinder img { pointer-events: none; }
.grid-lines {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(to right, transparent calc(33.33% - 0.5px), rgba(255,255,255,.35) calc(33.33% - 0.5px), rgba(255,255,255,.35) calc(33.33% + 0.5px), transparent calc(33.33% + 0.5px), transparent calc(66.66% - 0.5px), rgba(255,255,255,.35) calc(66.66% - 0.5px), rgba(255,255,255,.35) calc(66.66% + 0.5px), transparent calc(66.66% + 0.5px)),
    linear-gradient(to bottom, transparent calc(33.33% - 0.5px), rgba(255,255,255,.35) calc(33.33% - 0.5px), rgba(255,255,255,.35) calc(33.33% + 0.5px), transparent calc(33.33% + 0.5px), transparent calc(66.66% - 0.5px), rgba(255,255,255,.35) calc(66.66% - 0.5px), rgba(255,255,255,.35) calc(66.66% + 0.5px), transparent calc(66.66% + 0.5px));
}
.cam-top { position: absolute; top: 0; left: 0; right: 0; display: flex; gap: 0.75rem; align-items: center; padding: calc(env(safe-area-inset-top) + 8px) 16px 8px; background: linear-gradient(rgba(0,0,0,.6), transparent); }
.cam-close { color: #fff; text-decoration: none; font-size: 1.8rem; line-height: 1; }
.cam-msg { position: absolute; top: 30%; left: 16px; right: 16px; text-align: center; background: rgba(0,0,0,.7); padding: 0.75rem; border-radius: 8px; }
.cam-controls { position: absolute; left: 0; right: 0; bottom: 0; padding: 12px 16px calc(env(safe-area-inset-bottom) + 16px); background: linear-gradient(transparent, rgba(0,0,0,.75)); display: grid; gap: 12px; }
.cam-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.ghost-ctl { display: flex; gap: 0.75rem; align-items: center; font-size: 0.9rem; }
.ghost-ctl input { flex: 1; }
.shutter { flex: none; width: 72px; height: 72px; border-radius: 50%; border: 4px solid #fff; background: rgba(255,255,255,.25); padding: 0; }
.shutter:active { background: #fff; }
.cam-file, .cam-flip { color: #fff; background: rgba(0,0,0,.4); border: 1px solid rgba(255,255,255,.4); border-radius: 8px; padding: 0.5rem 0.75rem; font-size: 0.9rem; cursor: pointer; min-width: 84px; text-align: center; }
.cam-labels { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; font-size: 0.95rem; }
.cam-controls input[name=note] { width: 100%; background: rgba(0,0,0,.5); color: #fff; border-color: rgba(255,255,255,.4); }
#save-controls .cam-row button { flex: 1; }