@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --bg-base:#0E0F11;
  --bg-surface:#17181B;
  --bg-elevated:#1E2023;
  --border:#2A2B2F;
  --text-primary:#ECEDF0;
  --text-secondary:#9A9BA2;
  --text-muted:#62646B;
  --accent:#70757F;
  --accent-hover:#878C96;
  --accent-text:#FFFFFF;
  --success:#4ADE80;
  --warning:#FBBF24;
  --danger:#F87171;
  --radius-sm:8px;
  --radius-md:10px;
  --radius-lg:12px;
  --header-h:56px;
  --sidebar-w:232px;
  --content-max:1160px;
}

[data-theme="light"]{
  --bg-base:#F7F7F8;
  --bg-surface:#FFFFFF;
  --bg-elevated:#F1F1F3;
  --border:#E4E4E7;
  --text-primary:#1A1B1E;
  --text-secondary:#5F6066;
  --text-muted:#98999F;
  --accent:#52555D;
  --accent-hover:#3C3F45;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:Inter,system-ui,-apple-system,sans-serif;
  background:var(--bg-base);
  color:var(--text-primary);
  line-height:1.5;
  font-size:14px;
  -webkit-font-smoothing:antialiased;
}
button,input,select,textarea{font-family:inherit}
a{color:inherit;text-decoration:none}
.mono{font-family:'JetBrains Mono',monospace}
.col-gap{display:flex;flex-direction:column;gap:12px}
.col-gap-sm{display:flex;flex-direction:column;gap:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

.app{display:flex;min-height:100vh}

.sidebar{
  width:var(--sidebar-w);
  background:var(--bg-surface);
  border-right:1px solid var(--border);
  position:fixed;
  inset:0 auto 0 0;
  z-index:40;
  display:flex;
  flex-direction:column;
}
.sidebar-head{
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 18px;
  border-bottom:1px solid var(--border);
}
.brand-mark{
  width:28px;height:28px;
  border-radius:var(--radius-sm);
  object-fit:cover;
  border:1px solid var(--border);
  flex-shrink:0;
}
.brand-text{font-weight:600;font-size:15px;letter-spacing:-0.01em}
.nav{padding:12px 10px;display:flex;flex-direction:column;gap:2px;flex:1}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  background:transparent;
  color:var(--text-secondary);
  font-weight:500;font-size:13.5px;
  cursor:pointer;width:100%;text-align:left;
  transition:background 160ms ease,color 160ms ease,border-color 160ms ease;
}
.nav-item:hover{background:var(--bg-elevated);color:var(--text-primary)}
.nav-item.active{background:var(--bg-elevated);color:var(--text-primary);border-color:var(--border)}
.nav-item i,.nav-item svg{width:17px;height:17px;flex-shrink:0;opacity:0.85}
.sidebar-foot{
  padding:14px 16px;
  border-top:1px solid var(--border);
  display:flex;flex-direction:column;gap:10px;
}

.status-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:500;color:var(--text-muted);
  white-space:nowrap;
}
.status-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--text-muted);flex-shrink:0;
  box-shadow:0 0 0 3px rgba(120,122,130,0.15);
}
.status-badge.connected .status-dot{background:var(--success);box-shadow:0 0 0 3px rgba(74,222,128,0.16)}
.status-badge.checking .status-dot{background:var(--warning);box-shadow:0 0 0 3px rgba(251,191,36,0.16);animation:pulseDot 1s ease-in-out infinite}
.status-badge.disconnected .status-dot{background:var(--danger);box-shadow:0 0 0 3px rgba(248,113,113,0.14)}
@keyframes pulseDot{50%{opacity:0.4}}

.main-wrapper{
  flex:1;
  margin-left:var(--sidebar-w);
  min-width:0;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

.header{
  height:var(--header-h);
  background:var(--bg-surface);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;
  position:sticky;top:0;z-index:30;gap:16px;
}
.header-left{display:flex;align-items:center;gap:11px;min-width:0}
.header-mark{
  width:22px;height:22px;border-radius:6px;
  border:1px solid var(--border);object-fit:cover;
}
.header-right{display:flex;align-items:center;gap:8px;flex-shrink:0}
.header-gh{color:var(--text-secondary)}
.header-title{font-weight:600;font-size:13.5px;white-space:nowrap}
.header-subtitle{
  font-size:11.5px;color:var(--text-muted);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:340px;
}
.icon-btn{
  width:34px;height:34px;border-radius:var(--radius-sm);
  border:1px solid var(--border);
  background:transparent;color:var(--text-secondary);
  display:grid;place-items:center;cursor:pointer;
  transition:color 150ms ease,border-color 150ms ease,background 150ms ease;
}
.icon-btn:hover{color:var(--text-primary);border-color:var(--accent-hover);background:var(--bg-elevated)}
.icon-btn i,.icon-btn svg{width:16px;height:16px}
.icon-btn.sq{width:38px;height:38px;flex-shrink:0}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 15px;border-radius:var(--radius-sm);
  font-weight:500;font-size:13.5px;line-height:1;
  border:1px solid transparent;cursor:pointer;
  user-select:none;white-space:nowrap;
  transition:background 160ms ease,border-color 160ms ease,color 160ms ease,transform 160ms ease;
}
.btn:active{transform:translateY(1px)}
.btn i,.btn svg{width:15px;height:15px}
.btn-primary{background:var(--accent);color:var(--accent-text);border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
.btn-secondary{background:var(--bg-surface);color:var(--text-primary);border-color:var(--border)}
.btn-secondary:hover{background:var(--bg-elevated);border-color:var(--accent-hover)}
.btn-ghost{background:transparent;color:var(--text-secondary)}
.btn-ghost:hover{background:var(--bg-elevated);color:var(--text-primary)}
.btn-danger{background:var(--danger);color:#141414;border-color:var(--danger)}
.btn-danger:hover{filter:brightness(1.05)}
.btn-sm{padding:7px 11px;font-size:12.5px}
.btn-lg{padding:12px 20px;font-size:14px}
.btn:disabled{opacity:0.5;cursor:not-allowed}
.btn kbd{
  font-family:'JetBrains Mono',monospace;font-size:10.5px;
  padding:3px 6px;border-radius:5px;
  background:rgba(255,255,255,0.14);
  opacity:0.85;
}
.spin{animation:spinAnim 0.9s linear infinite;display:inline-block}
@keyframes spinAnim{to{transform:rotate(360deg)}}

.main{
  flex:1;
  padding:24px 28px;
  max-width:var(--content-max);
  width:100%;
  margin:0 auto;
}
.page{display:none;animation:pageIn 180ms ease-out}
.page.active{display:block}
#page-home.active{display:flex;flex-direction:column}
@keyframes pageIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

.hero{
  flex:1;
  display:grid;
  grid-template-columns:1.02fr 0.98fr;
  gap:48px;
  align-items:center;
  padding:12px 0;
}
.hero-copy,.hero-visual{min-width:0}
.hero-eyebrow{
  font-size:11.5px;font-weight:500;color:var(--text-muted);
  letter-spacing:0.08em;text-transform:uppercase;
}
.hero h1{
  font-size:32px;line-height:1.16;letter-spacing:-0.03em;font-weight:600;
  margin:16px 0 14px;
}
.hero h1 span{color:var(--text-secondary)}
.hero-desc{
  color:var(--text-secondary);
  font-size:14.5px;line-height:1.65;max-width:520px;
}
.txt-short{display:none}
.hero-actions{display:flex;gap:10px;margin-top:24px;flex-wrap:wrap}
.hero-meta{margin-top:20px;font-size:11.5px;color:var(--text-muted)}

.term{
  background:var(--bg-surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:0 12px 32px rgba(0,0,0,0.18);
}
.term-bar{
  display:flex;align-items:center;gap:6px;
  padding:10px 14px;
  border-bottom:1px solid var(--border);
}
.term-dot{width:10px;height:10px;border-radius:50%;background:var(--bg-elevated);border:1px solid var(--border)}
.term-name{margin-left:auto;font-size:11px;color:var(--text-muted)}
.term-body{
  padding:16px 18px;
  font-family:'JetBrains Mono',monospace;
  font-size:12.5px;line-height:1.75;
  overflow-x:auto;white-space:pre;
  color:var(--text-primary);
  max-width:100%;
}
.t-dim{color:var(--text-muted)}
.t-tag{color:var(--text-secondary)}
.t-url{color:var(--text-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--text-muted)}

.section{margin-top:36px}
.section-head{
  display:flex;align-items:end;justify-content:space-between;
  gap:12px;margin-bottom:16px;flex-wrap:wrap;
}
.section-head h2{font-size:19px;font-weight:600;letter-spacing:-0.02em}
.section-head p{font-size:13px;color:var(--text-secondary)}

.card{
  background:var(--bg-surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.card-pad{padding:18px}
.card-head{
  padding:14px 18px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.card-title{font-weight:600;font-size:13.5px}
.count-hint{font-size:11px;color:var(--text-muted)}

.connect-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  align-items:start;
}
.flow-title{font-size:15px;font-weight:600;letter-spacing:-0.01em}
.flow-sub{font-size:13px;color:var(--text-secondary);margin-top:6px}
.flow-pad > .flow-title{margin-top:0}
.flow-pad > .code-block{margin-top:14px}
.steps-list{
  list-style:none;
  margin-top:16px;
  display:flex;flex-direction:column;gap:12px;
}
.steps-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:13px;line-height:1.55;color:var(--text-secondary);
}
.steps-num{
  width:22px;height:22px;flex-shrink:0;margin-top:1px;
  border:1px solid var(--border);
  border-radius:50%;
  display:grid;place-items:center;
  font-size:11px;font-weight:600;color:var(--text-primary);
  font-family:'JetBrains Mono',monospace;
}
.steps-list a,.doc-body a{color:var(--text-primary);text-decoration:underline;text-underline-offset:2px}

.code-block{
  position:relative;
  background:var(--bg-elevated);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
}
.code-label{
  padding:7px 14px;
  font-size:11px;color:var(--text-muted);
  border-bottom:1px solid var(--border);
  letter-spacing:0.04em;
}
.code-block pre{
  padding:12px 44px 12px 14px;
  overflow-x:auto;
  font-family:'JetBrains Mono',monospace;
  font-size:11.5px;line-height:1.6;
  color:var(--text-primary);
  white-space:pre-wrap;
  word-break:break-all;
}
.code-block:not(.sm) pre{white-space:pre;word-break:normal}
.code-block button{
  position:absolute;
  right:8px;bottom:8px;
  padding:6px 9px;border-radius:7px;
  background:var(--bg-surface);
  border:1px solid var(--border);
  color:var(--text-secondary);cursor:pointer;
  display:inline-flex;align-items:center;gap:5px;
  font-size:11px;font-weight:500;
  transition:color 150ms ease,border-color 150ms ease;
}
.code-block:not(.sm) button{bottom:auto;top:32px}
.code-block button:hover{color:var(--text-primary);border-color:var(--accent-hover)}
.code-block button i,.code-block button svg{width:13px;height:13px}

.form-group{display:flex;flex-direction:column;gap:6px}
.form-label{font-size:12px;font-weight:500;color:var(--text-secondary)}
.form-input,.form-textarea,.form-select{
  width:100%;
  padding:10px 12px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
  background:var(--bg-base);
  color:var(--text-primary);
  font-size:13.5px;outline:none;
  transition:border-color 160ms ease,box-shadow 160ms ease;
}
.form-textarea{resize:vertical;min-height:84px;line-height:1.6}
.form-select{appearance:none;background-image:linear-gradient(45deg,transparent 49%,var(--text-muted) 50%),linear-gradient(-45deg,transparent 49%,var(--text-muted) 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-right:32px}
.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(135,140,150,0.14)}
.form-hint{font-size:11.5px;color:var(--text-muted)}
.form-error{font-size:12px;color:var(--danger);display:none}
.form-error.show{display:block}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.range-row{display:flex;align-items:center;gap:10px}
.range-row input[type="range"]{flex:1;accent-color:var(--accent)}
.range-val{
  min-width:42px;text-align:center;
  padding:5px 7px;
  background:var(--bg-elevated);
  border:1px solid var(--border);
  border-radius:7px;
  font-family:'JetBrains Mono',monospace;font-size:12px;
}

.connect-actions{display:flex;gap:8px;margin-top:14px}
.status-panel{
  margin-top:12px;
  padding:11px 13px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
  background:var(--bg-base);
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-secondary);
}
.status-panel.success{border-color:rgba(74,222,128,0.35);background:rgba(74,222,128,0.07);color:var(--text-primary)}
.status-panel.error{border-color:rgba(248,113,113,0.35);background:rgba(248,113,113,0.07);color:var(--text-primary)}
.status-panel i,.status-panel svg{width:16px;height:16px;flex-shrink:0}
.troubleshoot{
  margin-top:10px;padding:12px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  font-size:12.5px;color:var(--text-secondary);
  line-height:1.55;display:none;
}
.troubleshoot.show{display:block}
.troubleshoot ul{margin-left:16px;margin-top:6px}

.workspace-layout{
  display:grid;
  grid-template-columns:minmax(300px,340px) 1fr;
  gap:20px;
  align-items:start;
}
.workspace-panel{display:flex;flex-direction:column;gap:14px}
.gen-hint{font-size:11.5px;color:var(--text-muted);text-align:center}
.collapsible{
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  background:var(--bg-surface);
  overflow:hidden;
}
.collapsible-head{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;
  background:transparent;border:0;cursor:pointer;
  color:var(--text-primary);font-weight:500;font-size:13px;
}
.collapsible-head i,.collapsible-head svg{width:15px;height:15px;color:var(--text-muted);transition:transform 170ms ease}
.collapsible.open .collapsible-head svg:last-child{transform:rotate(180deg)}
.collapsible-body{display:none;padding:2px 14px 14px;flex-direction:column;gap:12px}
.collapsible.open .collapsible-body{display:flex}

.workspace-canvas{min-width:0;display:flex;flex-direction:column;gap:14px}
.canvas-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.canvas-title{font-weight:600;font-size:13.5px}
.canvas-meta{font-size:11.5px;color:var(--text-muted);margin-top:2px}
.progress-track{
  height:3px;border-radius:999px;
  background:var(--bg-elevated);
  border:1px solid var(--border);
  overflow:hidden;display:none;
}
.progress-track.show{display:block}
.progress-fill{height:100%;width:0%;background:var(--accent-hover);transition:width 160ms linear}

.empty-state{
  padding:24px;
  background:var(--bg-surface);
  border:1px dashed var(--border);
  border-radius:var(--radius-md);
  display:none;flex-direction:column;align-items:flex-start;gap:8px;
  color:var(--text-secondary);
}
.empty-state.show{display:flex}
.empty-state i,.empty-state svg{width:24px;height:24px;color:var(--text-muted)}
.empty-state h3{font-size:13.5px;font-weight:600;color:var(--text-primary)}
.empty-state p{font-size:12.5px;max-width:400px}

.image-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(210px,1fr));
  gap:14px;
}
.image-grid.history{grid-template-columns:repeat(4,1fr)}
.image-card{
  background:var(--bg-surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:border-color 160ms ease;
}
.image-card:hover{border-color:var(--accent-hover)}
.image-thumb{
  position:relative;aspect-ratio:1;
  background:var(--bg-elevated);
  overflow:hidden;cursor:pointer;
}
.image-thumb img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform 180ms ease;
}
.image-card:hover .image-thumb img{transform:scale(1.02)}
.image-overlay{
  position:absolute;inset:auto 8px 8px 8px;
  display:flex;gap:6px;
  opacity:0;transform:translateY(4px);
  transition:opacity 160ms ease,transform 160ms ease;
}
.image-card:hover .image-overlay{opacity:1;transform:none}
.overlay-btn{
  flex:1;padding:6px 8px;border-radius:7px;
  background:rgba(14,15,17,0.82);
  backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,0.12);
  color:#ECEDF0;
  font-size:11px;font-weight:500;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:5px;
}
.overlay-btn i,.overlay-btn svg{width:13px;height:13px}
.image-meta{padding:10px 12px;display:flex;flex-direction:column;gap:6px}
.image-prompt{
  font-size:12.5px;line-height:1.45;color:var(--text-primary);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.image-sub{font-size:10.5px;color:var(--text-muted);display:flex;gap:8px;flex-wrap:wrap}
.image-sub span{display:inline-flex;align-items:center;gap:4px}

.skeleton{
  background:linear-gradient(90deg,var(--bg-elevated) 25%,var(--bg-surface) 37%,var(--bg-elevated) 63%);
  background-size:400% 100%;
  animation:shimmer 1.3s ease-in-out infinite;
  border-radius:var(--radius-sm);
}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:-100% 0}}
.sk-line{height:9px;margin:7px 12px;border-radius:5px;width:auto}
.sk-line.short{width:55%}

.banner{
  display:none;
  align-items:center;justify-content:space-between;
  gap:12px;
  padding:10px 14px;
  background:var(--bg-surface);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text-secondary);
  font-size:13px;
}
.banner.show{display:flex;margin-bottom:16px}
.banner i,.banner svg{width:16px;height:16px;color:var(--text-muted)}

.history-toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.search-wrap{position:relative;flex:1;min-width:180px}
.search-wrap i,.search-wrap svg{
  position:absolute;left:10px;top:50%;transform:translateY(-50%);
  width:15px;height:15px;color:var(--text-muted);pointer-events:none;
}
.search-wrap input{padding-left:33px}
.filter-select{min-width:132px}

.doc-layout{
  display:grid;
  grid-template-columns:196px 1fr;
  gap:18px;
  align-items:start;
}
.doc-toc{
  position:sticky;
  top:calc(var(--header-h) + 16px);
  background:var(--bg-surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:10px;
  display:flex;flex-direction:column;gap:2px;
}
.doc-toc-title{
  font-size:10.5px;font-weight:500;color:var(--text-muted);
  text-transform:uppercase;letter-spacing:0.06em;
  padding:4px 8px 8px;
}
.doc-toc a{
  padding:7px 9px;border-radius:7px;
  font-size:12.5px;color:var(--text-secondary);
  transition:background 150ms ease,color 150ms ease;
}
.doc-toc a:hover{background:var(--bg-elevated);color:var(--text-primary)}
.doc-toc a.active{background:var(--bg-elevated);color:var(--text-primary)}
.doc-content{display:flex;flex-direction:column;gap:16px;min-width:0}
.doc-section{
  background:var(--bg-surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.doc-section-head{padding:16px 18px 14px;border-bottom:1px solid var(--border)}
.doc-section-head h3{font-size:14.5px;font-weight:600;letter-spacing:-0.01em}
.doc-section-head p{font-size:12.5px;color:var(--text-secondary);margin-top:3px}
.doc-body{padding:16px 18px;display:flex;flex-direction:column;gap:12px;font-size:13.5px;line-height:1.65;color:var(--text-secondary)}
.doc-body ol,.doc-body ul{margin-left:18px;display:flex;flex-direction:column;gap:6px}
.accordion{border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;background:var(--bg-surface)}
.accordion-item{border-bottom:1px solid var(--border)}
.accordion-item:last-child{border-bottom:0}
.accordion-trigger{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-weight:500;font-size:13px;color:var(--text-primary);
  transition:background 150ms ease;
}
.accordion-trigger:hover{background:var(--bg-elevated)}
.accordion-trigger i,.accordion-trigger svg{width:15px;height:15px;color:var(--text-muted);transition:transform 170ms ease;flex-shrink:0}
.accordion-item.open .accordion-trigger svg{transform:rotate(180deg)}
.accordion-panel{display:none;padding:0 14px 14px;font-size:13px;line-height:1.6;color:var(--text-secondary)}
.accordion-item.open .accordion-panel{display:block}

.toast-container{
  position:fixed;
  right:14px;bottom:14px;
  z-index:60;
  display:flex;flex-direction:column-reverse;gap:8px;
  pointer-events:none;
}
.toast{
  min-width:270px;max-width:360px;
  padding:11px 13px;
  border-radius:var(--radius-md);
  background:var(--bg-surface);
  border:1px solid var(--border);
  color:var(--text-primary);
  display:flex;gap:10px;align-items:flex-start;
  box-shadow:0 10px 28px rgba(0,0,0,0.22);
  pointer-events:auto;
  animation:toastIn 180ms ease-out;
}
@keyframes toastIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.toast.out{opacity:0;transform:translateY(4px);transition:opacity 180ms ease,transform 180ms ease}
.toast i,.toast svg{width:16px;height:16px;flex-shrink:0;margin-top:2px}
.toast.success i,.toast.success svg{color:var(--success)}
.toast.error i,.toast.error svg{color:var(--danger)}
.toast.warning i,.toast.warning svg{color:var(--warning)}
.toast-msg{flex:1;min-width:0}
.toast-title{font-weight:600;font-size:12.5px}
.toast-desc{font-size:12px;color:var(--text-secondary);margin-top:2px;line-height:1.45}
.toast-close{
  background:transparent;border:0;color:var(--text-muted);
  cursor:pointer;padding:2px;display:grid;place-items:center;
}
.toast-close:hover{color:var(--text-primary)}
.toast-close i,.toast-close svg{width:14px;height:14px}

.modal{
  position:fixed;inset:0;z-index:50;
  display:none;align-items:center;justify-content:center;
  padding:18px;
}
.modal.show{display:flex}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,0.55);backdrop-filter:blur(3px)}
.modal-card{
  position:relative;width:100%;max-width:700px;max-height:90vh;
  background:var(--bg-surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  display:flex;flex-direction:column;
  animation:pageIn 160ms ease-out;
}
.modal-card.sm{max-width:400px}
.modal-head{
  padding:13px 16px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.modal-title{font-weight:600;font-size:13.5px}
.modal-body{padding:16px;overflow:auto}
.modal-foot{
  padding:12px 16px;border-top:1px solid var(--border);
  display:flex;justify-content:flex-end;gap:8px;
}
.lightbox-img{
  width:100%;max-height:58vh;object-fit:contain;
  background:var(--bg-elevated);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
}
.lb-prompt{font-size:13px;line-height:1.55;color:var(--text-secondary)}
.confirm-desc{font-size:13px;line-height:1.55;color:var(--text-secondary)}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.detail-item{background:var(--bg-base);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px}
.detail-label{font-size:10.5px;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-muted);font-weight:600}
.detail-value{font-size:12.5px;color:var(--text-primary);margin-top:4px;word-break:break-word}
.detail-value.mono{font-family:'JetBrains Mono',monospace;font-size:11.5px}

.mobile-nav{display:none}

.foot{
  padding:16px 24px;
  border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:11.5px;color:var(--text-muted);
}
.foot-links{display:flex;gap:14px}
.foot-links a{text-decoration:underline;text-underline-offset:2px}
.foot-links a:hover{color:var(--text-secondary)}

@media (min-width:1025px){
  :root{--foot-h:52px}
  .main{padding-top:20px;padding-bottom:20px}
  .hero{
    min-height:calc(100dvh - var(--header-h) - var(--foot-h) - 40px);
    align-items:center;
  }
}

@media (max-width:1100px){
  .workspace-layout{grid-template-columns:minmax(280px,310px) 1fr}
}

@media (max-width:900px){
  .sidebar{display:none}
  .main-wrapper{margin-left:0}
  .mobile-nav{
    display:grid;
    grid-template-columns:repeat(5,1fr);
    gap:2px;
    position:fixed;inset:auto 0 0 0;
    background:var(--bg-surface);
    border-top:1px solid var(--border);
    z-index:35;
    padding:6px 8px calc(6px + env(safe-area-inset-bottom));
  }
  .mobile-nav-item{
    display:flex;flex-direction:column;align-items:center;gap:3px;
    padding:7px 4px;border-radius:var(--radius-sm);
    border:1px solid transparent;
    background:transparent;color:var(--text-secondary);
    font-size:10px;font-weight:500;cursor:pointer;
    transition:background 150ms ease,color 150ms ease;
  }
  .mobile-nav-item.active{background:var(--bg-elevated);color:var(--text-primary);border-color:var(--border)}
  .mobile-nav-item i,.mobile-nav-item svg{width:18px;height:18px}

  .header{padding:0 16px}
  .header-gh{display:none}
  .header-subtitle{display:none}
  .main{padding:16px 16px calc(88px + env(safe-area-inset-bottom))}

  .hero{
    grid-template-columns:1fr;gap:28px;align-items:start;
    padding:8px 0 0;
  }
  .hero h1{font-size:25px}
  .txt-long{display:none}
  .txt-short{display:inline}
  .hero-actions .btn{flex:1;min-width:140px}
  .term-body{font-size:11.5px;padding:13px 15px}

  .connect-layout,
  .workspace-layout,
  .form-row,
  .detail-grid{grid-template-columns:1fr}
  .image-grid.history{grid-template-columns:repeat(2,1fr)}
  .section-head{flex-direction:column;align-items:flex-start}
  .btn kbd{display:none}
  .history-toolbar{width:100%}
  .search-wrap{width:100%}
  .toast-container{left:10px;right:10px;bottom:calc(76px + env(safe-area-inset-bottom))}
  .toast{min-width:0;max-width:none;width:100%}

  .doc-layout{grid-template-columns:1fr;gap:14px}
  .doc-toc{
    position:static;flex-direction:row;flex-wrap:nowrap;
    overflow-x:auto;-webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .doc-toc::-webkit-scrollbar{display:none}
  .doc-toc-title{display:none}
  .doc-toc a{flex-shrink:0;font-size:12px}
  .foot{padding:14px 16px calc(84px + env(safe-area-inset-bottom))}
  .modal{padding:12px}
}