:root{color-scheme:light dark;--bg:#f4f6fb;--panel:#fff;--ink:#152033;--muted:#65728a;--line:#dce3ef;--accent:#3156c8;--accent-dark:#203d9b;--good:#18794e;--bad:#b3263e;--soft:#eef3ff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}a{color:var(--accent)}button,input,select,textarea{font:inherit}button{cursor:pointer}body.auth-page{min-height:100vh;background:radial-gradient(circle at top left,#e8efff,transparent 45%),var(--bg)}.shell{width:min(1180px,calc(100% - 36px));margin:auto}.app-header{background:#101a33;color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand,.auth-brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:inherit}.brand img{width:36px;height:36px}.brand span{display:flex;flex-direction:column;line-height:1.15}.brand small{color:#aab8d9;font-size:11px;margin-top:4px}.main-nav{display:flex;align-items:center;gap:17px;flex-wrap:wrap}.main-nav a,.nav-button{color:#eaf0ff;text-decoration:none;background:none;border:0;padding:5px 0}.main-nav a:hover,.nav-button:hover{text-decoration:underline}.page-space{padding:34px 0 64px}.page-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:24px}.page-heading h1{margin:.15rem 0 .35rem;font-size:clamp(25px,4vw,36px);letter-spacing:-.02em}.page-heading p{margin:0;color:var(--muted)}.eyebrow{color:var(--accent)!important;font-size:12px!important;font-weight:750;letter-spacing:.12em;text-transform:uppercase}.page-state{display:flex;flex-direction:column;align-items:flex-end;gap:7px;color:var(--muted)}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 315px;gap:24px;align-items:start}.editor-column,.sidebar-column{min-width:0}.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 10px 30px rgba(28,48,86,.06)}.form-card{margin-bottom:18px}.section-heading{display:flex;gap:13px;align-items:flex-start;padding-bottom:10px;border-bottom:1px solid var(--line);margin-bottom:13px}.section-heading>span{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--soft);color:var(--accent);font-weight:800;font-size:12px}.section-heading h2,.panel h2{font-size:18px;margin:0}.section-heading p{color:var(--muted);font-size:13px;margin:2px 0 0}.form-grid{display:grid;gap:14px}.form-grid.two{grid-template-columns:180px 1fr}.format-grid{grid-template-columns:minmax(170px,.5fr) minmax(0,1fr)}label{display:block;font-weight:700;margin:13px 0 6px}input[type=text],input[type=date],input[type=password],input[type=search],select,textarea{width:100%;border:1px solid var(--line);border-radius:9px;background:var(--panel);color:var(--ink);padding:10px 12px;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(49,86,200,.13)}select{min-height:44px}textarea{min-height:430px;font:14px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;resize:vertical}.help{display:block;font-size:12px;color:var(--muted);margin-top:5px}.challenge-search{display:grid;grid-template-columns:1fr;gap:8px;margin-top:10px;padding:12px;background:#f7f9fe;border:1px solid var(--line);border-radius:10px}.challenge-search select{min-height:140px}.token-list{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}.token{display:inline-flex;gap:6px;align-items:center;background:var(--soft);border:1px solid #cbd8ff;border-radius:99px;padding:4px 9px;color:#29479f;font-size:12px}.token button{border:0;background:none;color:inherit;padding:0;font-size:16px;line-height:1}.inline-warning{color:#8c5010;background:#fff6dd;border-radius:8px;padding:8px 10px;font-size:13px}.editor-toolbar{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}.editor-toolbar button{background:#f0f3f9;border:1px solid var(--line);border-radius:7px;padding:6px 9px;color:var(--ink);font-size:12px}.editor-toolbar button:hover{border-color:var(--accent);color:var(--accent)}input[type=file]{width:100%;padding:8px 0}.file-drop{display:flex;flex-direction:column;gap:3px;padding:20px;border:1px dashed #9aabd1;border-radius:12px;background:#f7f9fe;color:var(--accent);cursor:pointer}.file-drop span{font-size:12px;font-weight:400;color:var(--muted)}.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.sticky-actions{position:sticky;bottom:16px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px 17px;margin-top:2px;background:rgba(16,26,51,.96);color:#fff;border-radius:14px;box-shadow:0 14px 32px rgba(16,26,51,.22)}.sticky-actions strong,.sticky-actions small{display:block}.sticky-actions small{color:#b8c4e0;font-size:12px}.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.sticky-actions .actions{margin:0}.button{border:0;border-radius:9px;padding:10px 15px;font-weight:750;text-decoration:none;display:inline-flex;justify-content:center;align-items:center}.button:disabled{opacity:.5;cursor:not-allowed}.primary{background:var(--accent);color:#fff}.primary:hover{background:var(--accent-dark);color:#fff}.secondary{background:#e8edf6;color:#253452}.danger{background:var(--bad);color:#fff}.full{width:100%}.notice{border-left:4px solid var(--good);padding:10px 13px;background:rgba(24,121,78,.1);margin-bottom:18px;border-radius:0 8px 8px 0}.notice.error{border-color:var(--bad);background:rgba(179,38,62,.1)}.entries{list-style:none;padding:0;margin:4px 0 0}.entries li{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:11px 0;border-bottom:1px solid var(--line)}.entries li a{min-width:0;text-decoration:none}.entries li a span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.entries li small,.muted{display:block;color:var(--muted);font-size:12px}.badge{display:inline-flex;white-space:nowrap;font-size:11px;padding:3px 8px;border-radius:99px;background:#e8edf6;color:#42516c}.badge.live{background:#d9f3e5;color:#17683f}.panel-title{display:flex;align-items:center;justify-content:space-between;gap:8px}.panel-title a{font-size:12px}.status{white-space:pre-wrap;max-height:240px;overflow:auto;background:#101a33;color:#eef3ff;padding:12px;border-radius:8px;font:12px/1.5 ui-monospace,monospace}.danger-zone{margin-top:17px;border-top:1px solid var(--line);padding-top:12px}.danger-zone summary{color:var(--bad);cursor:pointer;font-weight:700}.quick-help dl{margin:8px 0 0}.quick-help dt{font-weight:750;margin-top:10px}.quick-help dd{color:var(--muted);margin:2px 0}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:28px 18px}.auth-card{width:min(440px,100%);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:0 20px 60px rgba(28,48,86,.12)}.auth-brand{color:var(--ink);font-weight:800;font-size:18px;margin-bottom:30px}.auth-brand img{width:42px;height:42px}.auth-heading h1{font-size:30px;margin:4px 0}.auth-heading p:not(.eyebrow){color:var(--muted);margin:0 0 22px}.auth-form label{margin-top:16px}.auth-form .button{margin-top:22px}.auth-footnote{color:var(--muted);font-size:12px;margin:18px 0 0}.narrow-grid{display:grid;grid-template-columns:minmax(0,620px) minmax(240px,1fr);gap:24px}.stack-form{max-width:560px}.account-note li{margin:8px 0;color:var(--muted)}@media(max-width:900px){.workspace{grid-template-columns:1fr}.sidebar-column{display:grid;grid-template-columns:1fr 1fr;gap:18px}.sidebar-column .panel{margin:0}.quick-help{grid-column:1/-1}}@media(max-width:650px){.shell{width:min(100% - 24px,1180px)}.header-inner{padding:13px 0;align-items:flex-start}.main-nav{gap:9px;font-size:13px}.page-space{padding-top:24px}.page-heading{flex-direction:column}.page-state{align-items:flex-start}.form-grid.two,.format-grid,.narrow-grid,.sidebar-column{grid-template-columns:1fr}.panel{padding:17px}.sticky-actions{position:static;align-items:stretch;flex-direction:column}.sticky-actions .actions>*{flex:1}.auth-card{padding:25px 21px}}

/* AI-assisted check-in workflow */
.source-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.ai-panel{border-color:#cbd9f6;background:linear-gradient(180deg,rgba(240,246,255,.72),var(--panel) 38%)}
.analysis-actions{display:flex;flex-wrap:wrap;gap:10px;margin:4px 0 14px}
.json-editor{min-height:250px;font:13px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace;background:#101a33;color:#edf3ff;border-color:#293858;tab-size:2}
.analysis-status{margin-top:10px;padding:10px 12px;border-radius:9px;background:#eef2f8;color:var(--muted);font-size:13px}
.analysis-status.success{background:#dff5e9;color:#17683f}
.analysis-status.error{background:#fee9e9;color:#a92b2b}
.analysis-status.working{background:#fff4d8;color:#75540b}
.schema-help{margin-top:12px;color:var(--muted);font-size:13px}
.schema-help summary{cursor:pointer;font-weight:750;color:var(--ink)}
.token.static{padding-right:10px}
.spinner{display:inline-block;width:12px;height:12px;margin-right:8px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;vertical-align:-2px;animation:publisher-spin .8s linear infinite}
@keyframes publisher-spin{to{transform:rotate(360deg)}}
@media(max-width:900px){.source-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.source-grid{grid-template-columns:1fr}.analysis-actions .button{width:100%}}

.button.ghost{background:transparent;color:var(--muted);border-color:transparent}
.analysis-mode [data-editor]{opacity:.45;pointer-events:none}
.analysis-mode .json-editor{border-color:#5b80d6}