/* Shared color tokens cover the login screen, workbench and modal content. */
:root {
 color-scheme:light;
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
 font-synthesis:none;
 color:var(--text); background:var(--page);
 --page:#f5f6f3; --surface:#ffffff; --surface-hover:#f0f5f0; --surface-muted:#edf0ec;
 --text:#253831; --text-secondary:#556b60; --heading:#244c3e; --muted:#617164;
 --brand:#286a55; --brand-hover:#205642; --on-brand:#ffffff; --brand-soft:#e7f0e9;
 --border:#e0e6df; --border-hover:#8aaa98; --input-border:#d6ded5; --divider:#edf0eb;
 --focus:#4a8b6b; --focus-soft:#4a8b6b1a; --topbar:#ffffffeb; --table-head:#f6f8f4;
 --notice-bg:#edf5ef; --notice-border:#d3e6d6; --success-bg:#eaf3eb; --success-text:#376b47;
 --warning-bg:#fff4dd; --warning-text:#8d681c; --danger-bg:#fcece8; --danger:#a34b41;
 --empty-icon:#b3c7b8; --bubble-bg:#f1f5ef; --bubble-user:#e4eee5; --code-bg:#f1f5ef;
 --shadow-dialog:#17362222; --backdrop:#152f2466; --toast-bg:#244c3b; --toast-text:#ffffff;
 --login-hero:#e9eee6; --login-title:#294c3c; --scene-grid:#7b967817;
 --scene-shadow:#8da58c24; --scene-floor-a:#e3dfcd; --scene-floor-b:#d4d6bd;
 --scene-wall-left:#faf9f0; --scene-wall-right:#e2e8d8; --scene-outline:#bbcab6;
 --scene-window-frame:#b3c5b5; --scene-glass:#d8e7d9; --scene-window-line:#fafbf2;
 --scene-rug:#f2eee0; --scene-sofa-top:#658a70; --scene-sofa-back:#4f735c; --scene-sofa-seat:#9db69b;
 --scene-sofa-front:#81a184; --scene-cushion:#b8c9aa; --scene-table:#f7f3e4; --scene-table-leg:#9eaf96;
 --scene-book:#8da68a; --scene-pot:#d1be9c; --scene-pot-rim:#e8d6b6; --scene-stem:#758f65; --scene-leaf:#6a8f68; --scene-lamp:#f6ecd3;
}
:root[data-theme="dark"] {
 color-scheme:dark;
 --page:#111a18; --surface:#192520; --surface-hover:#23332b; --surface-muted:#25362e;
 --text:#e2eae4; --text-secondary:#b1c1b6; --heading:#d2e4d6; --muted:#93a69a;
 --brand:#91c5a5; --brand-hover:#b1d6bc; --on-brand:#163526; --brand-soft:#284332;
 --border:#304238; --border-hover:#678a73; --input-border:#3a4d41; --divider:#2b3c32;
 --focus:#91c5a5; --focus-soft:#91c5a51c; --topbar:#192520ef; --table-head:#203027;
 --notice-bg:#213d2b; --notice-border:#3d6248; --success-bg:#284233; --success-text:#badcbe;
 --warning-bg:#443a23; --warning-text:#eed397; --danger-bg:#482c29; --danger:#f0ada3;
 --empty-icon:#65856d; --bubble-bg:#24362b; --bubble-user:#2b4733; --code-bg:#111e16;
 --shadow-dialog:#00000066; --backdrop:#070e0bcc; --toast-bg:#bddbc4; --toast-text:#173624;
 --login-hero:#17271e; --login-title:#dfebdd; --scene-grid:#91b39114;
 --scene-shadow:#030b064f; --scene-floor-a:#38553f; --scene-floor-b:#2b4330;
 --scene-wall-left:#5a7560; --scene-wall-right:#415e49; --scene-outline:#6b866e;
 --scene-window-frame:#2e4834; --scene-glass:#9ab69a; --scene-window-line:#cfddbf;
 --scene-rug:#7c8d68; --scene-sofa-top:#83a383; --scene-sofa-back:#517358; --scene-sofa-seat:#acc0a0;
 --scene-sofa-front:#7a9a7b; --scene-cushion:#d0d7b0; --scene-table:#c6c4a6; --scene-table-leg:#9daa89;
 --scene-book:#6b865c; --scene-pot:#958461; --scene-pot-rim:#b4a47b; --scene-stem:#9cb182; --scene-leaf:#91b380; --scene-lamp:#e7d8b1;
}
*{box-sizing:border-box}
body{margin:0}
button,input,select,textarea{font:inherit}
button,a{touch-action:manipulation}
button{cursor:pointer;border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:9px 14px;color:var(--text-secondary)}
button:hover{border-color:var(--border-hover);background:var(--surface-hover)}
button:disabled{opacity:.5;cursor:default}
.primary{background:var(--brand);color:var(--on-brand);border-color:var(--brand)}
.primary:hover{background:var(--brand-hover);color:var(--on-brand)}
.danger{color:var(--danger)}
.quiet{background:transparent;border-color:transparent}
.small{font-size:12px}
.muted{color:var(--muted)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,p{margin-top:0}
h1{font-size:24px;letter-spacing:.5px;margin-bottom:8px}
h2{font-size:17px}
h3{font-size:15px}
p{line-height:1.7}
.shell{min-height:100vh;display:grid;grid-template-columns:224px minmax(0,1fr)}
.sidebar{background:var(--surface);border-right:1px solid var(--border);padding:30px 18px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}
.brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:650;padding:0 10px 28px}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);color:var(--on-brand);display:grid;place-items:center;font-size:23px}
.brand-sub{font-size:10px;letter-spacing:2.5px;font-weight:400;color:var(--muted);margin-top:5px}
.nav-group{font-size:10px;color:var(--muted);letter-spacing:2px;padding:22px 13px 8px}
.nav-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:8px;margin:3px 0;color:var(--text-secondary);font-size:14px}
.nav-item:hover{text-decoration:none;background:var(--surface-hover)}
.nav-item.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.nav-icon{font-size:14px;width:19px;text-align:center}
.sidebar-foot{margin-top:auto;border-top:1px solid var(--border);padding:20px 10px 0;font-size:11px;color:var(--muted)}
.main{min-width:0}
.topbar{height:72px;border-bottom:1px solid var(--border);background:var(--topbar);display:flex;justify-content:space-between;align-items:center;padding:0 36px;font-size:12px}
.topbar-label{display:flex;align-items:center;gap:9px}
.dot{height:6px;width:6px;border-radius:50%;background:var(--brand)}
.content{padding:32px 36px 64px;max-width:1600px;margin:auto}
.page-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:26px}
.page-head p{font-size:13px;margin:0;color:var(--muted)}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:20px;min-width:0}
.panel-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:20px}
.panel-heading h2{margin:0}
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:24px}
.metric{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px}
.metric-label{font-size:12px;color:var(--muted)}
.metric-value{font-size:34px;line-height:1.6;font-weight:600;color:var(--heading)}
.metric-note{font-size:11px;color:var(--muted)}
.banner{padding:17px 20px;border:1px solid var(--notice-border);background:var(--notice-bg);border-radius:10px;display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px;font-size:13px}
.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:20px}
.toolbar input{min-width:220px;flex:1}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;min-width:0}
.field label{font-size:12px;color:var(--text-secondary)}
.field small{color:var(--muted);font-size:11px;line-height:1.6}
input,select,textarea{width:100%;background:var(--surface);border:1px solid var(--input-border);border-radius:8px;padding:11px 12px;color:var(--text);outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--focus);box-shadow:0 0 0 3px var(--focus-soft)}
textarea{resize:vertical;line-height:1.65;min-height:120px}
input[type=checkbox]{width:auto;accent-color:var(--brand)}
.check{display:flex;align-items:center;gap:8px;font-size:13px;margin:15px 0}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}
.form-actions{display:flex;justify-content:flex-end;gap:10px;border-top:1px solid var(--border);padding-top:20px;margin-top:20px}
.table-wrap{width:100%;overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:12px;white-space:nowrap}
th{text-align:left;padding:13px 12px;background:var(--table-head);color:var(--muted);font-weight:500;border-bottom:1px solid var(--border)}
td{padding:17px 12px;border-bottom:1px solid var(--divider);max-width:340px;overflow:hidden;text-overflow:ellipsis}
tbody tr:last-child td{border-bottom:none}
.table-name{font-weight:550;color:var(--heading)}
.table-sub{font-size:10px;color:var(--muted);margin-top:6px}
.badge{display:inline-block;border-radius:5px;padding:4px 7px;background:var(--success-bg);color:var(--success-text);font-size:10px;white-space:nowrap}
.badge.warn{background:var(--warning-bg);color:var(--warning-text)}
.badge.bad{background:var(--danger-bg);color:var(--danger)}
.badge.neutral{background:var(--surface-muted);color:var(--muted)}
.empty{text-align:center;padding:58px 20px;color:var(--muted);font-size:13px}
.empty-icon{font-size:32px;color:var(--empty-icon);margin-bottom:16px}
.empty p{max-width:420px;margin:8px auto}
.empty h3{color:var(--text-secondary);font-weight:500}
.split{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:20px}
.key-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.key-value{min-width:0}
.key-value dt{font-size:11px;color:var(--muted);margin-bottom:7px}
.key-value dd{margin:0;font-size:13px;line-height:1.7;word-break:break-word}
.timeline-item{border-left:2px solid var(--border);padding:0 0 22px 18px;margin-left:5px;font-size:12px}
.timeline-item time{font-size:10px;color:var(--muted)}
.timeline-item p{margin:7px 0}
.conversation{max-height:600px;overflow:auto}
.bubble{padding:14px 16px;border-radius:9px;background:var(--bubble-bg);margin:12px 0;font-size:12px;line-height:1.8;white-space:pre-wrap;word-break:break-word}
.bubble.user{background:var(--bubble-user);margin-left:32px}
.bubble-label{font-size:10px;color:var(--muted);margin-bottom:5px}
.code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11px;line-height:1.7;white-space:pre-wrap;word-break:break-word;background:var(--code-bg);padding:16px;border-radius:8px;max-height:450px;overflow:auto}
.config-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.config-card{background:var(--surface);border:1px solid var(--border);padding:22px;border-radius:12px}
.config-card h3{margin:0 0 8px}
.config-card p{font-size:12px;color:var(--muted);word-break:break-all}
.config-card footer{display:flex;gap:8px;margin-top:20px}
.tabs{display:flex;gap:6px;margin-bottom:24px;flex-wrap:wrap}
.tabs button.active{color:var(--on-brand);background:var(--brand);border-color:var(--brand)}
.error{font-size:12px;color:var(--danger);line-height:1.7;white-space:pre-wrap}
.boot{padding:80px;text-align:center;color:var(--muted)}
dialog{border:1px solid var(--border);border-radius:14px;padding:28px;max-width:720px;width:calc(100% - 40px);max-height:90vh;overflow:auto;box-shadow:0 25px 80px var(--shadow-dialog)}
dialog::backdrop{background:var(--backdrop);backdrop-filter:blur(2px)}
#toast{position:fixed;left:50%;bottom:32px;transform:translateX(-50%);background:var(--toast-bg);color:var(--toast-text);padding:12px 22px;border-radius:8px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .15s;z-index:1000}
#toast.visible{opacity:1}
.scheme-preview{width:100%;max-height:260px;object-fit:cover;border-radius:8px;margin-bottom:20px}
.pager{display:flex;gap:8px;justify-content:flex-end;margin-top:18px}
.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
details>summary{cursor:pointer;color:var(--brand);font-size:12px;margin:16px 0}
.section-space{margin-top:28px}
@media(min-width:1500px){.metrics{grid-template-columns:repeat(6,minmax(0,1fr))}
}
@media(max-width:1050px){.shell{grid-template-columns:180px minmax(0,1fr)}
.sidebar{padding:26px 10px}
.content{padding:26px 22px}
.topbar{padding:0 22px}
.split{grid-template-columns:1fr}
.config-list{grid-template-columns:1fr}
.brand{font-size:15px;gap:7px}
.nav-item{padding:11px;font-size:13px}
}
@media(max-width:680px){.shell{grid-template-columns:1fr}
.sidebar{position:static;height:auto;border-right:0;padding:18px}
.sidebar .brand{padding-bottom:16px}
.sidebar nav{display:flex;overflow:auto;gap:6px}
.nav-group,.sidebar-foot{display:none}
.nav-item{white-space:nowrap}
.topbar{height:54px}
.content{padding:22px 16px}
.metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.metric{padding:18px}
.metric-value{font-size:28px}
.panel{padding:18px}
.form-grid,.key-grid{grid-template-columns:1fr}
.login{grid-template-columns:1fr}
.login-story{padding:30px;min-height:200px}
.login-story .brand{padding-bottom:24px}
.login-story h1{font-size:24px;margin:0}
.login-story p{display:none}
.login-form{padding:32px}
.toolbar input{min-width:150px}
.page-head{flex-wrap:wrap}
}


.tool-actions{display:flex;gap:6px;flex-wrap:wrap;min-width:190px;max-width:300px}
.tool-actions button{font-size:11px;padding:6px 8px}
.rule-summary{margin:14px 0;padding:15px;background:var(--surface-hover);border-radius:8px;font-size:12px;line-height:1.8}
.ranking-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.tool-actions+.code{max-width:100%}
@media(max-width:680px){.ranking-fields{grid-template-columns:1fr}
}


/* Preferences do not rebuild the page, so unsaved work and dialog inputs remain. */
body { transition:background-color .18s,color .18s; }
button:focus-visible,a:focus-visible,summary:focus-visible { outline:3px solid var(--focus); outline-offset:3px; }
input::placeholder,textarea::placeholder { color:var(--muted); opacity:1; }
button { transition:background-color .15s,border-color .15s; }
.sidebar { padding:26px 16px 18px; height:100dvh; }
.sidebar nav { min-height:0; flex:1; overflow-y:auto; scrollbar-width:thin; }
.sidebar-foot { flex-shrink:0; }
.topbar-actions { display:flex; align-items:center; gap:18px; }
.topbar-label { min-width:0; }
.topbar-label span:last-child { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.theme-control { display:inline-flex; flex-shrink:0; gap:3px; padding:4px; border:1px solid var(--border); border-radius:12px; background:var(--surface-muted); }
.theme-control button { display:flex; align-items:center; justify-content:center; gap:6px; min-height:32px; padding:6px 11px; border:0; border-radius:8px; color:var(--muted); background:transparent; font-size:11px; line-height:1.4; }
.theme-control button svg { width:15px; height:15px; flex-shrink:0; }
.theme-control button[aria-pressed="true"] { color:var(--heading); background:var(--surface); box-shadow:0 1px 4px var(--shadow-dialog); }
.theme-control button:hover { color:var(--heading); }
.panel,.metric,.config-card { box-shadow:0 2px 5px #00000002; }
tbody tr:hover td { background:var(--surface-hover); }
.error { color:var(--danger); }
dialog { background:var(--surface); color:var(--text); }
.login { min-height:100vh; min-height:100dvh; display:grid; grid-template-columns:1.12fr 1fr; position:relative; background:var(--surface); }
.login-header { position:absolute; z-index:2; top:32px; left:44px; right:44px; display:flex; align-items:center; justify-content:space-between; gap:20px; }
.login-header .brand { padding:0; font-size:18px; gap:12px; }
.login-header .brand-mark { width:38px; height:38px; border-radius:13px; font-size:26px; font-style:italic; }
.login-header .brand-sub { margin-top:3px; font-size:9px; letter-spacing:2px; }
.login-story { position:relative; overflow:hidden; display:flex; flex-direction:column; align-items:flex-start; justify-content:center; padding:124px clamp(42px,6vw,108px) 50px; background:var(--login-hero); }
.login-story:before { content:""; position:absolute; inset:0; background-image:linear-gradient(var(--scene-grid) 1px,transparent 1px),linear-gradient(90deg,var(--scene-grid) 1px,transparent 1px); background-size:48px 48px; mask-image:linear-gradient(transparent 15%,black); pointer-events:none; }
.login-story>* { position:relative; z-index:1; }
.login-kicker { font-size:11px; letter-spacing:4px; color:var(--text-secondary); margin-bottom:23px; }
.login-story h1 { font-size:clamp(36px,3.8vw,62px); line-height:1.35; letter-spacing:1px; font-weight:540; color:var(--login-title); white-space:pre-line; margin:0 0 22px; }
.login-intro { font-size:13px; line-height:1.9; color:var(--text-secondary); white-space:pre-line; margin:0; }
.login-visual { align-self:center; width:min(100%,500px); margin:22px -16px 8px; }
.login-visual svg { display:block; width:100%; height:auto; }
.login-story-foot { align-self:center; color:var(--text-secondary); font-size:10px; letter-spacing:2px; padding-top:8px; }
.login-form { display:flex; flex-direction:column; align-items:center; justify-content:center; padding:132px clamp(36px,6.5vw,112px) 70px; border-left:1px solid var(--border); min-width:0; }
.login-card { width:100%; max-width:390px; }
.login-card-kicker { color:var(--brand); font-size:11px; letter-spacing:1px; margin-bottom:16px; }
.login-card h2 { font-size:32px; font-weight:600; margin:0 0 13px; letter-spacing:.5px; }
.login-description { font-size:12px; color:var(--muted); margin-bottom:34px; }
.login-card .field { gap:10px; margin-bottom:22px; }
.login-card .field label { font-size:12px; color:var(--text-secondary); }
.login-input-shell { display:flex; align-items:center; gap:12px; border:1px solid var(--input-border); border-radius:12px; padding:0 15px; min-height:52px; background:var(--surface); transition:border-color .15s,box-shadow .15s; }
.login-input-shell:focus-within { border-color:var(--focus); box-shadow:0 0 0 3px var(--focus-soft); }
.login-input-shell>svg { flex-shrink:0; width:18px; height:18px; color:var(--muted); }
.login-input-shell input { min-width:0; border:0; box-shadow:none; padding:15px 0; font-size:13px; border-radius:0; background:transparent; }
.login-input-shell input:focus { box-shadow:none; }
.login-card .password-reveal { display:flex; align-items:center; justify-content:center; flex:0 0 36px; min-height:40px; padding:0; margin-right:-8px; border:0; background:transparent; color:var(--muted); border-radius:8px; }
.password-reveal svg { width:18px; height:18px; }
.login-card .password-reveal:hover { color:var(--brand); background:var(--surface-hover); }
.login-card .error { min-height:22px; margin:-4px 0 12px; font-size:12px; }
.login-card .login-submit { display:flex; align-items:center; justify-content:center; gap:12px; min-height:50px; width:100%; border-radius:12px; font-size:14px; font-weight:550; box-shadow:0 5px 15px var(--focus-soft); }
.login-submit svg { width:18px; height:18px; }
.login-footer { color:var(--muted); font-size:10px; text-align:center; margin:28px 0 0; line-height:1.8; }
.scene-shadow { fill:var(--scene-shadow); }
.scene-floor-top { stop-color:var(--scene-floor-a); }
.scene-floor-bottom { stop-color:var(--scene-floor-b); }
.scene-wall-left { fill:var(--scene-wall-left); }
.scene-wall-right { fill:var(--scene-wall-right); }
.scene-outline { stroke:var(--scene-outline); stroke-width:1.2; stroke-linejoin:round; }
.scene-window-frame { fill:var(--scene-window-frame); }
.scene-glass { fill:var(--scene-glass); }
.scene-window-line { stroke:var(--scene-window-line); stroke-width:3; }
.scene-rug { fill:var(--scene-rug); }
.scene-sofa-top { fill:var(--scene-sofa-top); }
.scene-sofa-back { fill:var(--scene-sofa-back); }
.scene-sofa-seat { fill:var(--scene-sofa-seat); }
.scene-sofa-front { fill:var(--scene-sofa-front); }
.scene-sofa-cushion { fill:var(--scene-cushion); }
.scene-table { fill:var(--scene-table); }
.scene-table-leg { stroke:var(--scene-table-leg); stroke-width:5; stroke-linecap:round; }
.scene-book { fill:var(--scene-book); }
.scene-pot { fill:var(--scene-pot); }
.scene-pot-rim { fill:var(--scene-pot-rim); }
.scene-stem { stroke:var(--scene-stem); stroke-width:2.5; stroke-linecap:round; }
.scene-leaf { fill:var(--scene-leaf); }
.scene-lamp { fill:var(--scene-lamp); }
.scene-lamp-line { stroke:var(--scene-table-leg); stroke-width:2; stroke-linecap:round; }
@media(min-width:1800px) { .login-story { padding-left:max(80px,calc((100vw - 1500px)/2)); } .login-form { padding-right:max(80px,calc((100vw - 1500px)/2)); } }
@media(max-width:1050px) { .login-header { left:32px; right:32px; } .login-story { padding-left:36px; padding-right:36px; } .login-form { padding-left:40px; padding-right:40px; } .login-story h1 { font-size:40px; } }
@media(max-width:760px) {
 .login { grid-template-columns:1fr; grid-template-rows:auto auto 1fr; }
 .login-header { position:relative; top:auto; left:auto; right:auto; padding:22px 24px; background:var(--login-hero); }
 .login-header .brand { font-size:15px; gap:9px; }
 .login-header .brand-sub { font-size:8px; }
 .login-header .brand-mark { width:34px; height:34px; }
 .login-story { padding:20px 28px 28px; min-height:0; }
 .login-story h1 { font-size:31px; line-height:1.35; margin:0; }
 .login-kicker,.login-intro,.login-visual,.login-story-foot { display:none; }
 .login-form { border-left:0; justify-content:flex-start; padding:32px 28px 28px; }
 .login-card { max-width:440px; }
 .login-card h2 { font-size:26px; }
 .login-description { margin-bottom:26px; }
 .login-card-kicker { display:none; }
 .login-footer { margin-top:24px; }
 .login-input-shell { min-height:50px; }
 .login-header .theme-control button { min-height:32px; padding:6px 8px; }
}
@media(max-width:680px) {
 .sidebar { position:static; height:auto; padding:18px; }
 .sidebar nav { flex:none; overflow-x:auto; }
 .topbar { padding:0 16px; gap:10px; }
 .topbar-actions { gap:5px; flex-shrink:0; }
 .topbar .theme-label { display:none; }
 .topbar .theme-control button { width:30px; padding:5px; min-height:28px; }
 .topbar .quiet { padding:9px 7px; white-space:nowrap; }
 .banner { flex-wrap:wrap; }
}
@media(prefers-reduced-motion:reduce) { *,*::before,*::after { transition:none !important; } }