/* Erdac — everything that is not a token.
   Behaviour hooks are data-erdac-* attributes; classes are free to change. */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--canvas);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--text-md);
  line-height: var(--leading);
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}
a { color: var(--accent-ink); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--accent); }
input, button, select { font: inherit; color: inherit; }
input::placeholder { color: var(--muted); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--font-sans); margin: 0; font-weight: 600; text-wrap: pretty; }
p { margin: 0; text-wrap: pretty; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- shared ---------- */
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-sans); font-weight: 700; }
.brand::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 40px; padding: 0 16px; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--bg); font-family: var(--font-sans); font-weight: 600; cursor: pointer; text-decoration: none; color: var(--text);
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-lg { min-height: var(--hit); padding: 0 20px; }
.btn-sm { min-height: 32px; padding: 0 10px; font-size: var(--text-sm); }
.btn:disabled { background: var(--surface-2); border-color: var(--surface-2); color: var(--muted); cursor: default; filter: none; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 12px; color: var(--muted); }
.input {
  width: 100%; min-height: var(--hit); padding: 11px 12px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
}
.input[aria-invalid="true"] { border-color: var(--danger); }
.input:disabled { background: var(--surface-2); color: var(--muted); }
.check { width: 16px; height: 16px; accent-color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: var(--text-sm); }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); flex: none; }
.dot-off { background: var(--muted); }
.dot-err { background: var(--danger); }
.theme-toggle {
  background: none; border: 1px solid var(--border); color: var(--muted); border-radius: var(--radius);
  min-width: 32px; min-height: 32px; padding: 6px; cursor: pointer; line-height: 1; font-size: 15px;
}
.theme-toggle:hover { background: var(--surface); color: var(--text); }
.theme-toggle .moon { display: none; }
[data-theme="dark"] .theme-toggle .sun { display: none; }
[data-theme="dark"] .theme-toggle .moon { display: inline; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun { display: none; }
  :root:not([data-theme="light"]) .theme-toggle .moon { display: inline; }
}
.pill { font-size: var(--text-xs); padding: 2px 8px; border-radius: var(--radius-pill); }
.pill-changed { background: var(--warn-soft); color: var(--warn); }
.pill-new { background: var(--ok-soft); color: var(--ok); }
.pill-removed { background: var(--danger-soft); color: var(--danger); }

/* ---------- landing ---------- */
.landing { min-height: 100dvh; background: var(--bg); display: flex; flex-direction: column; }
.landing-header, .landing-footer {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 22px clamp(20px, 4vw, 40px); border-bottom: 1px solid var(--border);
}
.landing-header .brand { font-size: 18px; }
.landing-header nav { display: flex; align-items: center; gap: 12px; font-size: 12px; }
.landing-main {
  flex: 1; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 56px;
  padding: clamp(40px, 6vw, 64px) clamp(20px, 4vw, 40px) 56px; align-items: start; max-width: 1100px; width: 100%; margin: 0 auto;
}
.landing-intro { display: flex; flex-direction: column; gap: 20px; }
.landing-intro h1 { font-size: var(--text-display); line-height: 1.08; font-weight: 700; letter-spacing: -.01em; }
.landing-intro p { font-size: 15px; max-width: 46ch; }
.landing-links { display: flex; flex-direction: column; gap: 14px; padding-top: 6px; }
.entry {
  display: flex; flex-direction: column; gap: 6px; padding: 22px 24px;
  border: 1px solid var(--border); border-radius: var(--radius); text-decoration: none; color: var(--text);
}
.entry:first-child { background: var(--surface); }
.entry:hover { border-color: var(--accent); color: var(--text); }
.entry-title { display: flex; justify-content: space-between; font-family: var(--font-sans); font-weight: 600; font-size: 18px; }
.entry-title span:last-child { color: var(--accent-ink); }
.landing-footer { border-bottom: 0; border-top: 1px solid var(--border); font-size: 12px; color: var(--muted); }
@media (max-width: 720px) { .landing-main { grid-template-columns: 1fr; gap: 32px; } }

/* ---------- chat widget ---------- */
.chat-page { min-height: 100dvh; background: var(--bg); }
.launcher {
  position: fixed; right: var(--widget-inset); bottom: var(--widget-inset); z-index: 20;
  height: var(--launcher); padding: 0 20px 0 16px; border-radius: var(--radius-pill); border: 0;
  background: var(--accent); color: var(--on-accent); font-family: var(--font-sans); font-weight: 600;
  box-shadow: var(--shadow); cursor: pointer; display: inline-flex; align-items: center; gap: 10px;
}
.launcher::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.chat-dock {
  position: fixed; right: var(--widget-inset); bottom: var(--widget-inset); z-index: 20;
  display: flex; flex-direction: column; align-items: flex-end; gap: 12px;
}
.chat {
  width: var(--widget-w); height: var(--widget-h); max-height: calc(100dvh - 2 * var(--widget-inset) - var(--launcher) - 12px);
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow);
  display: flex; flex-direction: column; overflow: hidden;
}
.chat-close-fab {
  width: var(--launcher); height: var(--launcher); border-radius: 50%; border: 0;
  background: var(--accent); color: var(--on-accent); font-size: 22px; box-shadow: var(--shadow); cursor: pointer;
}
.chat-header {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
}
.chat-title { display: flex; align-items: center; gap: 10px; }
.chat-title .brand { font-size: 15px; line-height: 1.2; }
.chat-title .brand::before { content: none; }
.chat-title-text { display: flex; flex-direction: column; }
.chat-subtitle { font-size: var(--text-xs); color: var(--muted); }
.chat-header .icon-btn {
  background: none; border: 0; color: var(--muted); font-size: 18px; line-height: 1; padding: 6px;
  min-width: 32px; min-height: 32px; border-radius: 4px; cursor: pointer;
}
.chat-header .icon-btn:hover { background: var(--surface); }
.chat-messages {
  flex: 1; overflow-y: auto; padding: 20px 16px; display: flex; flex-direction: column; gap: 14px; overscroll-behavior: contain;
}
.msg { display: flex; flex-direction: column; gap: 6px; }
.msg[data-role="assistant"] .msg-who { font-size: var(--text-xs); color: var(--muted); }
.msg[data-role="user"] {
  align-self: flex-end; max-width: 85%; padding: 10px 14px;
  background: var(--accent-soft); border-radius: 12px 12px 4px 12px;
}
.msg-sources { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.msg-sources a {
  font-size: var(--text-xs); padding: 3px 8px; border: 1px solid var(--border); border-radius: var(--radius-pill);
  text-decoration: none; color: var(--muted); max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.suggestions { display: flex; flex-direction: column; gap: 8px; margin-top: 6px; }
.suggestion {
  text-align: left; padding: 10px 12px; min-height: var(--hit); border: 1px solid var(--border);
  background: var(--surface); border-radius: var(--radius); cursor: pointer; font-size: 13px;
}
.suggestion:hover { border-color: var(--accent); }
.thinking { display: flex; align-items: center; gap: 10px; }
.thinking-dots { display: inline-flex; gap: 4px; padding: 8px 10px; background: var(--surface); border-radius: var(--radius-pill); }
.thinking-dots i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: erdac-dot 1.2s infinite ease-in-out; }
.thinking-dots i:nth-child(2) { animation-delay: .16s; }
.thinking-dots i:nth-child(3) { animation-delay: .32s; }
.thinking-label { font-size: 12px; color: var(--muted); }
.caret { display: inline-block; width: 2px; height: 1em; background: var(--accent); vertical-align: text-bottom; margin-left: 2px; animation: erdac-caret 1s steps(2) infinite; }
.follow-btn {
  align-self: center; font-size: var(--text-xs); padding: 6px 10px; margin-bottom: 8px;
  border: 1px solid var(--border); background: var(--bg); border-radius: var(--radius-pill); color: var(--muted); cursor: pointer; box-shadow: var(--shadow);
}
.notice { padding: 14px; border-radius: var(--radius); display: flex; flex-direction: column; gap: 10px; }
.notice-declined { background: var(--info-bg); border: 1px solid var(--info-border); }
.notice-declined a { font-family: var(--font-sans); font-weight: 600; text-decoration: none; }
.notice-error { background: var(--danger-soft); border: 1px solid var(--danger); }
.notice-error .row { display: flex; gap: 10px; align-items: center; }
.notice-error .btn { border-color: var(--danger); color: var(--danger); }
.notice-error .btn:hover { background: var(--danger); color: #fff; }
.notice-halted {
  margin: 0 16px 12px; padding: 12px 14px; background: var(--surface); border: 1px dashed var(--border);
  flex-direction: row; align-items: flex-start; font-size: 13px;
}
.notice-halted .dot { margin-top: 6px; }
.notice-restarted {
  align-self: center; font-size: var(--text-xs); color: var(--muted); padding: 4px 10px;
  border: 1px solid var(--border); border-radius: var(--radius-pill);
}
.chat-form { display: flex; gap: 8px; padding: 12px 16px 14px; border-top: 1px solid var(--border); margin: 0; }
.chat-form .input { flex: 1; min-width: 0; }
.chat-form .btn-primary { min-height: var(--hit); border: 0; }

/* state machine: body[data-erdac-state] shows/hides regions */
[data-erdac-suggestion], [data-erdac-notice], .thinking, .caret, .follow-btn { display: none; }
[data-erdac-state="empty"] .suggestions, [data-erdac-state="restarted"] .suggestions { display: flex; }
[data-erdac-state="empty"] [data-erdac-suggestion], [data-erdac-state="restarted"] [data-erdac-suggestion] { display: block; }
[data-erdac-state="thinking"] .thinking { display: flex; }
[data-erdac-state="streaming"] .caret { display: inline-block; }
[data-erdac-state="streaming"] .follow-btn.is-visible { display: inline-block; }
[data-erdac-state="declined"] .notice-declined { display: flex; }
[data-erdac-state="error"] .notice-error { display: flex; }
[data-erdac-state="halted"] .notice-halted { display: flex; }
[data-erdac-state="restarted"] .notice-restarted { display: inline-block; }
[data-erdac-state="halted"] .msg { opacity: .6; }
[data-erdac-state="halted"] .chat-title .dot { background: var(--muted); }
[data-erdac-state="error"] .chat-title .dot { background: var(--danger); }

/* phone: card fills the viewport */
@media (max-width: 640px) {
  .chat-dock { inset: 0; align-items: stretch; gap: 0; }
  .chat { width: 100%; height: 100dvh; max-height: none; border: 0; border-radius: 0; }
  .chat-close-fab { display: none; }
  .chat-header .icon-btn { min-width: var(--hit); min-height: var(--hit); font-size: 20px; }
  .chat-form { padding-bottom: max(14px, env(safe-area-inset-bottom)); }
}

/* ---------- admin ---------- */
.admin { min-height: 100dvh; background: var(--bg); display: flex; flex-direction: column; }
.admin-header {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 16px clamp(16px, 3vw, 32px); border-bottom: 1px solid var(--border);
}
.admin-header .brand { font-size: 16px; }
.admin-header-right { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.admin-main { padding: clamp(20px, 3vw, 32px); display: flex; flex-direction: column; gap: 36px; max-width: 1100px; width: 100%; margin: 0 auto; }
.section { display: flex; flex-direction: column; gap: 14px; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.section-head h2 { font-size: var(--text-lg); }
.section-head .sub { font-size: 12px; color: var(--muted); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.stat { padding: 16px 18px; border: 1px solid var(--border); border-radius: var(--radius); display: flex; flex-direction: column; gap: 4px; }
.stat-label { font-size: 12px; color: var(--muted); }
.stat-value { font-family: var(--font-sans); font-size: var(--text-xl); font-weight: 600; line-height: 1; }
.stat-value.ok { color: var(--ok); }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 560px; }
thead tr { background: var(--surface); text-align: left; font-size: 11.5px; color: var(--muted); }
th { padding: 10px 14px; font-weight: 500; }
td { padding: 12px 14px; border-top: 1px solid var(--border); }
td.when { color: var(--muted); white-space: nowrap; }
.empty-box {
  padding: 48px 32px; border: 1px dashed var(--border); border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center;
}
.empty-box p { max-width: 44ch; }
.good-box {
  padding: 32px; border-radius: var(--radius); background: var(--ok-soft);
  display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center;
}
.good-box .tick { width: 28px; height: 28px; border-radius: 50%; background: var(--ok); color: #fff; display: grid; place-items: center; font-family: var(--font-sans); font-weight: 700; }
.good-box p { font-family: var(--font-sans); font-weight: 600; color: var(--ok); }

/* login */
.login { margin: auto; width: min(480px, calc(100% - 32px)); background: var(--bg); border: 1px solid var(--border); border-radius: 8px; box-shadow: var(--shadow); padding: 44px 40px; display: flex; flex-direction: column; gap: 22px; }
.login-head { display: flex; align-items: center; justify-content: space-between; }
.login form { display: flex; flex-direction: column; gap: 8px; }
.login .btn { margin-top: 8px; }
.field-error { font-size: var(--text-sm); color: var(--danger); display: none; }
[data-erdac-admin-state="login-invalid"] .field-error { display: block; }

/* progress */
.progress-box { display: flex; flex-direction: column; gap: 18px; padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); }
.progress-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.bar { height: 6px; background: var(--surface-2); border-radius: var(--radius-pill); overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--accent); border-radius: var(--radius-pill); width: var(--value, 0%); transition: width .3s; }
.bar.indeterminate > i { width: 40%; animation: erdac-bar 1.6s infinite ease-in-out; }
.fetch-log { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 6px; font-size: var(--text-sm); }
.fetch-log li { display: flex; gap: 10px; color: var(--muted); }
.fetch-log li > span:first-child { width: 8ch; flex: none; }
.fetch-log li.active { color: var(--text); }
.fetch-log li.active > span:first-child { color: var(--accent-ink); }
.progress-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }

/* review (grouped, option 1b) */
.review { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 28px; align-items: start; }
.review-list { display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.group { display: flex; flex-direction: column; gap: 10px; }
.group-title { font-size: 11.5px; font-family: var(--font-sans); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.group-changed .group-title { color: var(--warn); }
.group-new .group-title { color: var(--ok); }
.group-removed .group-title { color: var(--danger); }
.url-row { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 14px; padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius); }
.url-row .check { margin-top: 3px; }
.url-row:has([data-erdac-url-include]:not(:checked)) { background: var(--surface); }
.url-row:has([data-erdac-url-include]:not(:checked)) .url-title { color: var(--muted); }
.url-body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.url-title { font-family: var(--font-sans); font-weight: 600; font-size: 13.5px; }
.url-title.gone { text-decoration: line-through; color: var(--muted); }
.url-path { color: var(--muted); font-size: 11.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.diff { display: flex; flex-direction: column; gap: 2px; font-size: 12px; margin-top: 4px; }
.diff .minus { color: var(--muted); }
.diff .plus { color: var(--ok); }
.diff b { display: inline-block; width: 2ch; font-weight: 400; }
.unchanged { border-top: 1px solid var(--border); padding-top: 14px; }
.unchanged summary { cursor: pointer; font-size: var(--text-sm); color: var(--muted); }
.publish-panel { position: sticky; top: 16px; display: flex; flex-direction: column; gap: 14px; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.publish-panel h3 { font-size: var(--text-md); }
.publish-panel dl { margin: 0; display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; font-size: var(--text-sm); }
.publish-panel dt { color: var(--muted); }
.publish-panel dd { margin: 0; text-align: right; }
.publish-panel .hint { font-size: 11.5px; color: var(--muted); }
@media (max-width: 760px) { .review { grid-template-columns: 1fr; } .publish-panel { position: static; } }

/* halt switch */
.halt { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius); }
.halt-status { display: flex; align-items: center; gap: 10px; font-family: var(--font-sans); font-weight: 600; }
.halt-since { font-size: 11.5px; color: var(--muted); padding-left: 18px; font-family: var(--font-mono); font-weight: 400; }
.halt-confirm { display: flex; flex-direction: column; gap: 12px; padding: 14px; border: 1px solid var(--warn); background: var(--warn-soft); border-radius: var(--radius); }
.halt-confirm .row { display: flex; gap: 8px; }
.halt-confirm label { display: flex; gap: 8px; align-items: center; font-size: var(--text-sm); }
.halt.is-halted { background: var(--surface); }
.halt .halt-inline { display: flex; align-items: center; gap: 10px; font-size: var(--text-sm); }

/* admin view switching: body[data-erdac-admin-state] */
[data-erdac-admin-view] { display: none; }
.admin-view { flex-direction: column; flex: 1; }
[data-erdac-admin-state^="login"] [data-erdac-admin-view="login"] { display: flex; }
[data-erdac-admin-state="dashboard"] [data-erdac-admin-view="dashboard"],
[data-erdac-admin-state="empty"] [data-erdac-admin-view="dashboard"],
[data-erdac-admin-state="downloading"] [data-erdac-admin-view="dashboard"],
[data-erdac-admin-state="publishing"] [data-erdac-admin-view="dashboard"] { display: flex; }
[data-erdac-admin-state="review"] [data-erdac-admin-view="review"] { display: flex; }
[data-erdac-kb] { display: none; }
[data-erdac-admin-state="dashboard"] [data-erdac-kb="ready"] { display: flex; }
[data-erdac-admin-state="empty"] [data-erdac-kb="empty"] { display: flex; }
[data-erdac-admin-state="downloading"] [data-erdac-kb="downloading"] { display: flex; }
[data-erdac-admin-state="publishing"] [data-erdac-kb="publishing"] { display: flex; }
[data-erdac-declined-view] { display: none; }
[data-erdac-declined="some"] [data-erdac-declined-view="some"] { display: block; }
[data-erdac-declined="none"] [data-erdac-declined-view="none"] { display: flex; }
[data-erdac-halt-view] { display: none; }
[data-erdac-halt="running"] [data-erdac-halt-view="running"],
[data-erdac-halt="confirm"] [data-erdac-halt-view="confirm"],
[data-erdac-halt="halted"] [data-erdac-halt-view="halted"] { display: flex; }

@keyframes erdac-dot { 0%, 80%, 100% { opacity: .25; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-3px); } }
@keyframes erdac-caret { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes erdac-bar { 0% { transform: translateX(-100%); } 100% { transform: translateX(250%); } }
@media (prefers-reduced-motion: reduce) { .thinking-dots i, .caret, .bar.indeterminate > i { animation: none; } }