:root {
  --bg: #faf8f5; --fg: #2b2a28; --muted: #6f6b66; --card: #ffffff; --line: #e5e0d8;
  --accent: #3d6f6a; --accent-fg: #ffffff; --soft: #eef4f3; --alert: #fff5e6; --error: #9b2c2c;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1b1a; --fg: #ece9e4; --muted: #a39e97; --card: #262523; --line: #3a3835;
    --accent: #7fb3ad; --accent-fg: #1c1b1a; --soft: #24302e; --alert: #3a3022; --error: #f0a0a0;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); line-height: 1.5; font-size: 17px; }
main { max-width: 40rem; margin: 0 auto; padding: 1rem; }
h1 { font-size: 1.5rem; margin: .5rem 0 1rem; }
h2 { font-size: 1.1rem; margin: 1.5rem 0 .5rem; color: var(--muted); font-weight: 600; }
a { color: var(--accent); }
.top { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center; justify-content: space-between;
  padding: .75rem 1rem; border-bottom: 1px solid var(--line); background: var(--card); }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); }
nav { display: flex; gap: 1rem; align-items: center; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1rem; margin: .75rem 0; }
.summary { margin: 0 0 .5rem; font-weight: 600; }
.result { margin: 0; color: var(--accent); }
.muted { color: var(--muted); font-size: .95rem; }
.buttons { display: flex; flex-wrap: wrap; gap: .5rem; }
.buttons form, form.inline { display: inline; margin: 0; }
button, a.button { font: inherit; padding: .55rem 1rem; border-radius: 999px; border: 1px solid var(--line);
  background: var(--soft); color: var(--fg); cursor: pointer; min-height: 44px; }
button.primary, a.button.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
button.quiet { background: transparent; }
a.button { display: inline-block; text-decoration: none; }
button.link { border: none; background: none; color: var(--accent); padding: 0; min-height: auto; }
.flash { background: var(--soft); border-radius: 8px; padding: .6rem .9rem; }
.alert { background: var(--alert); border-radius: 8px; padding: .6rem .9rem; margin: .5rem 0; }
.error { color: var(--error); }
.activity { list-style: none; padding: 0; margin: 0; }
.activity li { padding: .4rem 0; border-bottom: 1px solid var(--line); }
.when { color: var(--muted); font-size: .9rem; margin-right: .4rem; }
fieldset { border: none; padding: 0; margin: 0 0 1.25rem; }
legend { font-weight: 600; margin-bottom: .25rem; }
label { display: block; margin: .4rem 0; }
label.check { display: flex; gap: .5rem; align-items: flex-start; }
input[type=time], input[type=number], select { font: inherit; padding: .4rem; border-radius: 8px;
  border: 1px solid var(--line); background: var(--bg); color: var(--fg); }
input[type=number] { width: 5rem; }
select { max-width: 100%; }
.flash { white-space: pre-line; }
textarea, input:not([type=checkbox]):not([type=hidden]) { font: inherit; padding: .4rem; border-radius: 8px;
  border: 1px solid var(--line); background: var(--bg); color: var(--fg); width: 100%; max-width: 100%; }
input[type=number] { width: 6rem; }
details { margin: .5rem 0; }
summary { cursor: pointer; color: var(--accent); }
.slot { border-left: 3px solid var(--line); padding-left: .75rem; margin: .5rem 0; }
nav { flex-wrap: wrap; }
form.row { display: flex; gap: .75rem; align-items: center; justify-content: space-between;
  padding: .4rem 0; border-bottom: 1px solid var(--line); }
.list-item { display: flex; gap: .75rem; align-items: center; justify-content: space-between;
  padding: .25rem 0; border-bottom: 1px solid var(--line); }
.list-item button.link { color: var(--fg); text-align: left; min-height: 44px; }
.list-item button.ticked { text-decoration: line-through; color: var(--muted); }
.list-item form.store { display: flex; gap: .25rem; align-items: center; margin-left: auto; }
.list-item form.store input { width: 9rem; }