:root {
  --bg: #f7f7f5; --surface: #fff; --text: #1d1f1e; --muted: #67706c; --border: #dfe2df;
  --accent: #1f6f5c; --accent-text: #fff; --code: #f0f1ee;
  --active: #2f6fdb; --waiting: #c27c0e; --completed: #2e8540; --abandoned: #7d8582;
  --add: #e3f4e5; --del: #fbe6e4;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141716; --surface: #1c201f; --text: #e6e9e7; --muted: #9aa39f; --border: #313735;
    --accent: #4fb39a; --accent-text: #0d1211; --code: #262b29;
    --active: #6d9df0; --waiting: #e3a33a; --completed: #5cb86c; --abandoned: #8d9693;
    --add: #1f3a26; --del: #43231f;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.6 system-ui, -apple-system, "Segoe UI", "Hiragino Sans", sans-serif; }
a { color: var(--accent); }
header.top { display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--surface); }
header.top .brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--text); text-decoration: none; }
header.top .brand img { width: 24px; height: 24px; }
header.top nav { margin-left: auto; display: flex; gap: 14px; align-items: center; }
header.top nav form { margin: 0; }
main { max-width: 920px; margin: 0 auto; padding: 20px 16px 64px; }
h1 { font-size: 1.5rem; margin: 0 0 4px; line-height: 1.3; }
h2 { font-size: 1.15rem; margin: 28px 0 10px; }
.muted { color: var(--muted); font-size: 0.9em; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; margin: 12px 0; }
.badge { display: inline-block; padding: 1px 9px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; color: #fff; vertical-align: middle; }
.badge.active { background: var(--active); } .badge.waiting { background: var(--waiting); }
.badge.completed { background: var(--completed); } .badge.abandoned { background: var(--abandoned); }
.state-list { list-style: none; padding: 0; margin: 0; }
.state-list li a { display: block; padding: 12px 16px; text-decoration: none; color: inherit; }
.state-list li { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; margin: 8px 0; }
.state-list li.waiting { border-left: 4px solid var(--waiting); }
.state-list .title { font-weight: 600; }
.state-list .note { color: var(--muted); font-size: 0.9em; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.status-box { border-left: 4px solid var(--border); }
.status-box.waiting { border-left-color: var(--waiting); } .status-box.completed { border-left-color: var(--completed); }
.status-box.active { border-left-color: var(--active); } .status-box.abandoned { border-left-color: var(--abandoned); }
.tabs { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 1px solid var(--border); margin-top: 24px; }
.tabs a { padding: 6px 14px; border: 1px solid transparent; border-bottom: none; border-radius: 8px 8px 0 0; text-decoration: none; color: var(--muted); }
.tabs a.current { background: var(--surface); border-color: var(--border); color: var(--text); font-weight: 600; margin-bottom: -1px; }
.section-body { background: var(--surface); border: 1px solid var(--border); border-top: none; border-radius: 0 0 10px 10px; padding: 6px 18px 14px; }
.section-meta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--border); }
.markdown pre { background: var(--code); padding: 10px 12px; border-radius: 8px; overflow-x: auto; }
.markdown code { background: var(--code); padding: 1px 4px; border-radius: 4px; font-size: 0.92em; }
.markdown pre code { background: none; padding: 0; }
.markdown table { border-collapse: collapse; } .markdown td, .markdown th { border: 1px solid var(--border); padding: 4px 8px; }
.markdown img { max-width: 100%; }
.markdown li:has(> input[type=checkbox]) { list-style: none; margin-left: -1.2em; }
.markdown blockquote { margin-left: 0; padding-left: 12px; border-left: 3px solid var(--border); color: var(--muted); }
.journal { list-style: none; padding: 0; margin: 0; }
.journal li { border-left: 2px solid var(--border); padding: 0 0 8px 16px; position: relative; }
.journal li::before { content: ""; position: absolute; left: -6px; top: 6px; width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.journal li.report::before { background: var(--active); } .journal li.decision::before { background: var(--accent); }
.journal li.status::before { background: var(--waiting); }
.journal .entry-head { font-size: 0.85rem; color: var(--muted); }
.journal .kind { font-weight: 600; color: var(--text); }
form.stack { display: grid; gap: 10px; }
label { font-weight: 600; font-size: 0.9rem; }
input[type=text], input[type=url], input[type=password], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font: inherit;
}
textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 14px; min-height: 50vh; resize: vertical; }
textarea.short { min-height: 6em; }
button, .button { display: inline-block; padding: 7px 14px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-text); font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
button.secondary, .button.secondary { background: transparent; color: var(--accent); }
button.link { background: none; border: none; color: var(--accent); padding: 0; font-weight: normal; text-decoration: underline; }
button.danger { background: transparent; border-color: #c4473a; color: #c4473a; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 720px) { .grid2 { grid-template-columns: 1fr; } }
.flash { padding: 10px 14px; border-radius: 8px; margin: 12px 0; border: 1px solid var(--border); background: var(--surface); }
.flash.error { border-color: #c4473a; } .flash.ok { border-color: var(--completed); }
.secret { font-family: ui-monospace, monospace; word-break: break-all; background: var(--code); padding: 8px; border-radius: 6px; }
.diff { font-family: ui-monospace, monospace; font-size: 13px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow-x: auto; }
.diff div { white-space: pre-wrap; padding: 0 10px; min-height: 1.4em; }
.diff .add { background: var(--add); } .diff .del { background: var(--del); } .diff .gap { color: var(--muted); font-style: italic; }
.diff .add::before { content: "+ "; } .diff .del::before { content: "- "; } .diff .same::before { content: "  "; }
table.list { width: 100%; border-collapse: collapse; } table.list td, table.list th { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
details summary { cursor: pointer; }