:root {
  --bg: #f6f7f9; --card: #ffffff; --line: #e3e6ea; --text: #1b2430; --dim: #64707f;
  --accent: #2563eb; --accent-soft: #eaf1fe; --good: #147d54; --good-soft: #e6f6ef;
  --warn: #9a6700; --warn-soft: #fff5df; --bad: #b42318; --bad-soft: #fdecea;
  --radius: 12px; --shadow: 0 1px 3px rgba(16, 24, 40, .08);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
main { max-width: 1040px; margin: 0 auto; padding: 20px 16px 80px; }
.loading { display: flex; gap: 10px; align-items: center; color: var(--dim); padding: 48px 0; justify-content: center; }
.spinner { width: 15px; height: 15px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; display: inline-block; animation: spin .8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }

h1 { font-size: 22px; margin: 0; }
h2 { font-size: 18px; margin: 0 0 8px; }
h3 { font-size: 15px; margin: 0 0 8px; }
.eyebrow { text-transform: uppercase; letter-spacing: .06em; font-size: 11px; color: var(--dim); margin: 0 0 2px; }
.hint { color: var(--dim); font-size: 13px; margin: 6px 0; }

button { font: inherit; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--text); padding: 8px 14px; cursor: pointer; }
button:hover { border-color: #c8cdd4; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.primary:hover { background: #1d4fd7; }
button.secondary { background: var(--card); }
button.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
button.linkish { border: none; background: none; color: var(--accent); padding: 4px 6px; }
button:disabled { opacity: .55; cursor: default; }
input, textarea, select { font: inherit; width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px; background: #fff; color: var(--text); }
textarea { resize: vertical; }
label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: 14px; }
label input, label textarea, label select { margin-top: 6px; font-weight: 400; }

.topbar { display: flex; align-items: center; gap: 14px; padding: 6px 0 18px; flex-wrap: wrap; }
.topbar .brand-name { font-weight: 700; font-size: 17px; }
.topbar nav { display: flex; gap: 4px; }
.topbar nav button { border: none; background: none; padding: 8px 14px; border-radius: 8px; color: var(--dim); font-weight: 600; }
.topbar nav button.active { background: var(--accent-soft); color: var(--accent); }
.topbar .spacer { flex: 1; }
.tray { position: relative; }
.tray-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--dim); }
.tray-badge .spinner { width: 12px; height: 12px; }
.tray-pop { position: absolute; right: 0; top: 110%; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); min-width: 320px; padding: 10px 14px; z-index: 30; }
.tray-pop div { padding: 6px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.tray-pop div:last-child { border-bottom: none; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; margin-bottom: 16px; }
.login-card { max-width: 400px; margin: 60px auto; }

.wizard-steps { display: flex; gap: 8px; margin-bottom: 18px; }
.wizard-steps span { flex: 1; text-align: center; font-size: 13px; padding: 8px; border-radius: 8px; background: var(--card); border: 1px solid var(--line); color: var(--dim); }
.wizard-steps span.active { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.wizard-steps span.done { color: var(--good); border-color: var(--good); }

.tabs { display: flex; gap: 4px; margin-bottom: 14px; }
.tabs button { border: none; background: none; padding: 8px 12px; color: var(--dim); font-weight: 600; border-radius: 8px; }
.tabs button.active { background: var(--card); color: var(--text); box-shadow: var(--shadow); }

table.kw { width: 100%; border-collapse: collapse; }
table.kw th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--dim); padding: 8px 10px; border-bottom: 1px solid var(--line); }
table.kw td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.kw tr:last-child td { border-bottom: none; }
.kw-query { font-weight: 600; }
.kw-meta { color: var(--dim); font-size: 13px; }
.kw-actions { display: flex; gap: 6px; justify-content: flex-end; flex-wrap: wrap; }
.pager { display: flex; align-items: center; gap: 12px; justify-content: center; padding: 12px 0 0; color: var(--dim); font-size: 13px; }

.pill { display: inline-block; font-size: 12px; padding: 2px 10px; border-radius: 999px; font-weight: 600; }
.pill.run { background: var(--warn-soft); color: var(--warn); }
.pill.good { background: var(--good-soft); color: var(--good); }
.pill.bad { background: var(--bad-soft); color: var(--bad); }
.pill.dim { background: var(--bg); color: var(--dim); }
.pill.blue { background: var(--accent-soft); color: var(--accent); }

.blog-card { display: flex; gap: 14px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.blog-card .info { flex: 1; min-width: 260px; }
.blog-card .info p { margin: 4px 0 0; color: var(--dim); font-size: 14px; }

dialog { border: none; border-radius: var(--radius); box-shadow: 0 10px 40px rgba(16,24,40,.2); padding: 22px; width: min(680px, 92vw); }
dialog::backdrop { background: rgba(16,24,40,.4); }
#studio-dialog { width: min(1100px, 96vw); max-height: 92vh; }
.dialog-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 10px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.icon-button { border: none; background: none; font-size: 22px; line-height: 1; color: var(--dim); padding: 2px 8px; }

.studio-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 20px; }
@media (max-width: 860px) { .studio-grid { grid-template-columns: 1fr; } }
.article-preview { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px; max-height: 62vh; overflow: auto; background: #fff; }
.article-preview h1 { font-size: 24px; margin-top: 0; }
.article-preview h2 { font-size: 19px; margin: 22px 0 8px; }
.article-preview h3 { font-size: 16px; }
.article-preview img { max-width: 100%; border-radius: 8px; margin: 8px 0; }
.article-preview table { border-collapse: collapse; width: 100%; font-size: 13.5px; margin: 10px 0; }
.article-preview th, .article-preview td { border: 1px solid var(--line); padding: 6px 8px; text-align: left; }
.article-preview blockquote { border-left: 3px solid var(--accent); margin: 10px 0; padding: 4px 14px; color: var(--dim); }
.article-preview a { color: var(--accent); }
.studio-side { display: flex; flex-direction: column; gap: 12px; max-height: 62vh; overflow: auto; }
.chat-log { display: flex; flex-direction: column; gap: 8px; }
.chat-log .msg { padding: 8px 12px; border-radius: 10px; font-size: 13.5px; max-width: 95%; }
.chat-log .msg.owner { background: var(--accent-soft); align-self: flex-end; }
.chat-log .msg.engine { background: var(--bg); color: var(--dim); align-self: flex-start; }
.studio-accept { border-top: 1px solid var(--line); padding-top: 12px; }
#studio-notices .notice { background: var(--warn-soft); color: var(--warn); border-radius: 8px; padding: 8px 12px; font-size: 13px; margin-bottom: 8px; }

.question-block { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin: 10px 0; }
.question-block .why { color: var(--dim); font-size: 12.5px; margin: 4px 0 8px; }
.question-block .na { display: flex; gap: 8px; align-items: center; font-size: 13px; color: var(--dim); font-weight: 400; margin-top: 6px; }
.question-block .na input { width: auto; }

.export-steps { color: var(--dim); font-size: 14px; padding-left: 20px; }
#export-html { font-family: ui-monospace, monospace; font-size: 12px; }

.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: #1b2430; color: #fff; border-radius: 10px; padding: 10px 18px; font-size: 14px; z-index: 60; box-shadow: var(--shadow); }
.empty { text-align: center; color: var(--dim); padding: 36px 0; }
.refresh-box { margin-top: 14px; }
.refresh-box textarea { margin: 8px 0; }
.progress-list div { display: flex; gap: 10px; align-items: center; padding: 6px 0; font-size: 14px; }