:root {
  --bg: #f4f4f1;
  --surface: #ffffff;
  --surface-2: #f8f8f6;
  --border: #e3e3dd;
  --border-strong: #cdcdc5;
  --ink: #17181c;
  --ink-2: #52535c;
  --ink-3: #8a8a93;
  --accent: #2f6f5e;
  --accent-soft: #e6f1ed;
  --mkt: #b54708;
  --mkt-soft: #fdf1e7;
  --epr: #3451b2;
  --epr-soft: #eef1fd;
  --ppwr: #7a3fb0;
  --ppwr-soft: #f4edfb;
  --circ: #2f6f5e;
  --circ-soft: #e6f1ed;
  --warn: #a15c07;
  --warn-soft: #fff6e5;
  --bad: #b42318;
  --bad-soft: #fdecea;
  --shadow: 0 1px 2px rgba(20, 20, 26, .06), 0 4px 16px rgba(20, 20, 26, .06);
  --shadow-2: 0 8px 40px rgba(20, 20, 26, .18);
  --radius: 10px;
  --sans: ui-sans-serif, -apple-system, "Segoe UI", Inter, Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; font: 14px/1.5 var(--sans); color: var(--ink); background: var(--bg); }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: .9em; background: var(--surface-2); border: 1px solid var(--border); border-radius: 4px; padding: 0 4px; }
[hidden] { display: none !important; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 20px;
  padding: 10px 20px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 230px; }
.logo { width: 26px; height: 26px; border-radius: 50%; border: 5px solid var(--accent); }
.brand-title { font-weight: 650; letter-spacing: -.2px; }
.brand-sub { font-size: 12px; color: var(--ink-3); }
.search { flex: 1; max-width: 560px; }
.search input {
  width: 100%; padding: 8px 12px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--surface-2);
}
.search input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); background: var(--surface); }
.top-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.user-chip {
  border: 1px solid var(--border); background: var(--surface-2); border-radius: 999px; padding: 5px 12px 5px 8px; cursor: pointer;
  display: flex; align-items: center; gap: 6px;
}
.avatar {
  width: 22px; height: 22px; border-radius: 50%; display: inline-grid; place-items: center;
  font-size: 11px; font-weight: 700; color: #fff; background: var(--accent); flex: none;
}

.menu { position: relative; }
.menu-items {
  position: absolute; right: 0; top: calc(100% + 6px); min-width: 220px; z-index: 30;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-2); padding: 6px;
}
.menu-items a { display: block; padding: 8px 10px; border-radius: 6px; color: var(--ink); text-decoration: none; font-weight: 550; }
.menu-items a small { display: block; font-weight: 400; color: var(--ink-3); }
.menu-items a:hover { background: var(--surface-2); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--border-strong); background: var(--surface); font-weight: 550; white-space: nowrap;
}
a.btn { color: var(--ink); text-decoration: none; }
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--surface-2); }
.btn.danger { color: var(--bad); border-color: #f0c4bf; }
.btn.danger:hover { background: var(--bad-soft); }
.btn.small { padding: 3px 9px; font-size: 13px; }
.icon-btn {
  border: 1px solid transparent; background: transparent; border-radius: 7px; padding: 4px 8px; cursor: pointer;
  color: var(--ink-2); display: inline-flex; align-items: center; gap: 4px; font-size: 13px; white-space: nowrap;
}
.icon-btn:hover { background: var(--surface-2); border-color: var(--border); color: var(--ink); }
.icon-btn.ask { color: var(--ppwr); }
.icon-btn .n { font-weight: 650; }

/* ---------- layout ---------- */
.layout { display: grid; grid-template-columns: 260px minmax(0, 1fr) auto; height: calc(100vh - 57px); }
.sidebar { overflow-y: auto; border-right: 1px solid var(--border); background: var(--surface); padding: 14px 10px 40px; }
.main { overflow-y: auto; padding: 24px 32px 80px; outline: none; container-type: inline-size; }
.drawer {
  width: min(520px, 46vw); overflow-y: auto; border-left: 1px solid var(--border); background: var(--surface);
  display: flex; flex-direction: column;
}

/* ---------- sidebar ---------- */
.nav-group { margin-bottom: 18px; }
.nav-group h3 {
  margin: 0 8px 6px; font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: var(--ink-3); font-weight: 650;
  display: flex; justify-content: space-between; align-items: center;
}
.nav-group h3 small { text-transform: none; letter-spacing: 0; font-weight: 400; }
.nav-item {
  display: flex; align-items: center; gap: 6px; width: 100%; padding: 6px 8px; border: 0; background: transparent;
  border-radius: 7px; cursor: pointer; text-align: left;
}
.nav-item:hover { background: var(--surface-2); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav-item .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-item .count { color: var(--ink-3); font-size: 12px; }
.badge {
  display: inline-flex; align-items: center; gap: 3px; font-size: 11.5px; font-weight: 600;
  border-radius: 999px; padding: 0 7px; line-height: 18px; white-space: nowrap;
}
.badge.comments { background: #e8f0fe; color: #1a56c4; }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.req { background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--border); }
.badge.storage { background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--border); }
.nav-new { margin: 4px 8px; }
.badge.approved-count { background: #e7f6ec; color: #15803d; }
.approved-mark { color: #15803d; font-family: var(--sans); font-weight: 700; }
.icon-btn.approve { color: var(--ink-3); font-weight: 700; border: 1px solid var(--border); border-radius: 999px; }
.icon-btn.approve:hover { color: #15803d; }
.icon-btn.approve.on { color: #fff; background: #16a34a; border-color: #16a34a; border-radius: 999px; }
.btn.approve.on { background: #16a34a; border-color: #16a34a; color: #fff; }

/* ---------- main ---------- */
.def-header {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px 22px; margin-bottom: 18px;
}
.def-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.def-title h1 { margin: 0; font-size: 24px; letter-spacing: -.4px; }
.def-actions { margin-left: auto; display: flex; gap: 4px; }
.lead { font-size: 15px; margin: 8px 0 4px; }
.why { color: var(--ink-2); margin: 0 0 10px; }
.meta-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; margin-top: 8px; }
.meta-row .label { font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--ink-3); font-weight: 650; display: block; margin-bottom: 3px; }
.used-in { margin-top: 12px; font-size: 13px; color: var(--ink-2); }
.used-in a { cursor: pointer; }

.pill {
  display: inline-flex; align-items: center; font-size: 12px; font-weight: 600; border-radius: 6px; padding: 1px 7px; margin: 0 4px 3px 0;
  border: 1px solid transparent; white-space: nowrap;
}
.pill.marketplace { background: var(--mkt-soft); color: var(--mkt); }
.pill.epr { background: var(--epr-soft); color: var(--epr); }
.pill.ppwr { background: var(--ppwr-soft); color: var(--ppwr); }
.pill.circulate { background: var(--circ-soft); color: var(--circ); }
.pill.muted { background: var(--surface-2); color: var(--ink-3); border-color: var(--border); }

.toolbar { display: flex; align-items: center; gap: 8px; margin: 0 0 10px; flex-wrap: wrap; }
.toolbar h2 { margin: 0 auto 0 0; font-size: 16px; }
.chip {
  border: 1px solid var(--border-strong); background: var(--surface); border-radius: 999px; padding: 3px 11px; cursor: pointer; font-size: 13px;
}
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }

.fields { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.field-row {
  display: grid; grid-template-columns: minmax(170px, 1.1fr) minmax(220px, 2fr) minmax(130px, .9fr) auto; gap: 16px;
  padding: 12px 16px; border-top: 1px solid var(--border); align-items: start; cursor: pointer;
}
.field-row:first-child { border-top: 0; }
.field-row:hover { background: var(--surface-2); }
.field-row.selected { background: var(--accent-soft); box-shadow: inset 3px 0 0 var(--accent); }
.field-name { font-family: var(--mono); font-weight: 600; font-size: 13.5px; word-break: break-word; }
.field-type { font-size: 12.5px; color: var(--ink-2); margin-top: 2px; }
.field-type a { cursor: pointer; }
.field-desc { color: var(--ink); }
.field-why { color: var(--ink-3); font-size: 13px; margin-top: 2px; }
.field-actions { display: flex; gap: 2px; align-items: center; }
.field-flags { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 4px; }
.reorder { display: flex; flex-direction: column; gap: 2px; }
.empty { padding: 40px; text-align: center; color: var(--ink-3); }
.search-group { margin-bottom: 18px; }
.search-group h3 { margin: 0 0 6px; font-size: 14px; }
.search-group h3 a { cursor: pointer; }

/* ---------- drawer ---------- */
.drawer-head { padding: 16px 18px 0; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--surface); z-index: 2; }
.crumbs { font-size: 12px; color: var(--ink-3); display: flex; justify-content: space-between; align-items: center; }
.drawer-head h2 { margin: 2px 0 2px; font-size: 19px; font-family: var(--mono); word-break: break-word; }
.drawer-head .type { color: var(--ink-2); font-size: 13px; }
.tabs { display: flex; gap: 2px; margin-top: 12px; }
.tab {
  border: 0; background: transparent; padding: 8px 12px; cursor: pointer; border-bottom: 2px solid transparent; color: var(--ink-2); font-weight: 550;
}
.tab.on { color: var(--ink); border-bottom-color: var(--accent); }
.tab .n { font-size: 11.5px; background: var(--surface-2); border-radius: 999px; padding: 0 6px; margin-left: 3px; }
.drawer-body { padding: 16px 18px 40px; flex: 1; }

.section { margin-bottom: 18px; }
.section > .label {
  font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--ink-3); font-weight: 650; margin-bottom: 4px; display: block;
}
.section p { margin: 0; }
.source-card { border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; margin-bottom: 6px; background: var(--surface-2); }
.source-card blockquote { margin: 6px 0 0; padding-left: 10px; border-left: 3px solid var(--ppwr); color: var(--ink-2); font-style: italic; }
.warnings { background: var(--warn-soft); border: 1px solid #f3d9a8; color: #6b3d05; border-radius: 8px; padding: 10px 12px; margin-bottom: 16px; }
.warnings ul { margin: 4px 0 0; padding-left: 18px; }
.audit { font-size: 12px; color: var(--ink-3); }
details.tech summary { cursor: pointer; color: var(--ink-2); font-size: 13px; }
pre.json {
  font-family: var(--mono); font-size: 12px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px; overflow: auto; max-height: 360px; white-space: pre-wrap; word-break: break-word;
}

/* ---------- forms ---------- */
.form .row { margin-bottom: 14px; }
.form label.title { display: block; font-weight: 600; margin-bottom: 3px; }
.form .hint { font-size: 12.5px; color: var(--ink-3); margin: -1px 0 5px; }
.form input[type=text], .form input[type=number], .form select, .form textarea {
  width: 100%; padding: 7px 10px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--surface);
}
.form textarea { resize: vertical; min-height: 64px; }
.form textarea.code { font-family: var(--mono); font-size: 12px; min-height: 260px; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.checks { display: flex; flex-direction: column; gap: 6px; }
.check { display: flex; gap: 8px; align-items: flex-start; cursor: pointer; }
.check input { margin-top: 3px; }
.check small { display: block; color: var(--ink-3); }
.inline { display: flex; gap: 8px; }
.inline > * { flex: 1; }
.source-edit { border: 1px solid var(--border); border-radius: 8px; padding: 10px; margin-bottom: 8px; background: var(--surface-2); }
.source-edit .head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; font-weight: 600; font-size: 13px; }
.form-actions {
  position: sticky; bottom: 0; background: var(--surface); border-top: 1px solid var(--border); padding: 12px 0; margin-top: 10px;
  display: flex; gap: 8px; align-items: center;
}
.form-actions .spacer { flex: 1; }
.fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 12px; margin-bottom: 14px; }
.fieldset > legend { font-weight: 650; padding: 0 4px; }
.error-text { color: var(--bad); font-size: 13px; margin-top: 4px; }

/* ---------- comments & questions ---------- */
.thread-item { display: flex; gap: 10px; padding: 10px 0; border-top: 1px solid var(--border); }
.thread-item:first-child { border-top: 0; }
.thread-item .body { flex: 1; min-width: 0; }
.thread-item .who { font-weight: 600; }
.thread-item .when { color: var(--ink-3); font-size: 12px; margin-left: 6px; }
.thread-item .text { white-space: pre-wrap; word-break: break-word; margin-top: 2px; }
.thread-item.resolved { opacity: .6; }
.thread-item .tools { display: flex; gap: 4px; margin-top: 4px; }
.composer { border: 1px solid var(--border-strong); border-radius: 10px; padding: 8px; margin-top: 12px; background: var(--surface); }
.composer textarea { width: 100%; border: 0; resize: vertical; min-height: 60px; outline: none; }
.composer .bar { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.composer .bar small { color: var(--ink-3); }
.suggestions { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 2px; }
.qa { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 12px; overflow: hidden; }
.qa .q { background: var(--surface-2); padding: 10px 12px; }
.qa .q .text { white-space: pre-wrap; font-weight: 550; }
.qa .a { padding: 10px 12px; }
.qa .a.pending { color: var(--ink-2); display: flex; gap: 8px; align-items: center; }
.qa .a.error { color: var(--bad); }
.qa .a p { margin: 0 0 8px; }
.qa .a ul, .qa .a ol { margin: 0 0 8px; padding-left: 20px; }
.qa .a h4 { margin: 10px 0 4px; }
.qa .a blockquote { margin: 0 0 8px; padding-left: 10px; border-left: 3px solid var(--border-strong); color: var(--ink-2); }
.qa .a pre { background: var(--surface-2); padding: 8px; border-radius: 6px; overflow: auto; }
.qa .thinking-wrap { min-width: 0; }
.qa .thinking { font-size: 12.5px; font-style: italic; color: var(--ink-3); margin-top: 4px; white-space: pre-wrap; word-break: break-word; }
.qa .a .error { color: var(--bad); margin-top: 6px; }
.caret { display: inline-block; width: 7px; height: 1em; vertical-align: text-bottom; background: var(--ppwr); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.qa .model { font-size: 11.5px; color: var(--ink-3); margin-top: 6px; }
.ai-note { font-size: 12.5px; color: var(--ink-3); margin-bottom: 10px; }
.spinner { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--border-strong); border-top-color: var(--ppwr); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.history-item { padding: 10px 0; border-top: 1px solid var(--border); }
.history-item:first-child { border-top: 0; }
.history-item .note { color: var(--ink-2); font-style: italic; margin-top: 2px; }
.diff { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 6px; }
.diff pre { margin: 0; max-height: 240px; }
.diff .h { font-size: 11px; color: var(--ink-3); text-transform: uppercase; }

/* ---------- modal & toasts ---------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(20, 20, 26, .35); display: grid; place-items: center; z-index: 50; }
.modal {
  background: var(--surface); border-radius: 14px; box-shadow: var(--shadow-2); width: min(520px, 92vw); max-height: 86vh; overflow: auto; padding: 22px;
}
.modal.wide { width: min(760px, 94vw); }
.modal h2 { margin: 0 0 6px; font-size: 19px; }
.modal p.sub { margin: 0 0 16px; color: var(--ink-2); }
.modal .actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.people { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.person {
  display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 16px 8px; cursor: pointer; font-weight: 600;
  border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--surface);
}
.person:hover { background: var(--surface-2); border-color: var(--accent); }
.person.on { background: var(--accent-soft); border-color: var(--accent); }
.person .avatar { width: 40px; height: 40px; font-size: 15px; }
.change-row { display: flex; gap: 10px; padding: 9px 0; border-top: 1px solid var(--border); }
.change-row:first-child { border-top: 0; }
.change-row a { cursor: pointer; font-family: var(--mono); font-size: 13px; }
.toasts { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: 8px; z-index: 60; }
.toast { background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow-2); max-width: 560px; }
.toast.error { background: var(--bad); }

/* Narrow main column (e.g. drawer open): sources move under the description. */
@container (max-width: 860px) {
  .field-row { grid-template-columns: minmax(130px, 1fr) minmax(0, 2fr) auto; gap: 6px 14px; }
  .field-row > :nth-child(3) { grid-column: 2; grid-row: 2; }
  .field-row > :nth-child(4) { grid-column: 3; grid-row: 1 / span 2; }
  .def-actions { margin-left: 0; width: 100%; }
}

@media (max-width: 1100px) {
  .layout { grid-template-columns: 210px minmax(0, 1fr); }
  .drawer { position: fixed; right: 0; top: 57px; bottom: 0; width: min(520px, 100vw); box-shadow: var(--shadow-2); z-index: 25; }
}