:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f8f8fb;
  --surface-3: #eff0f5;
  --ink: #20232c;
  --muted: #737988;
  --line: #e4e6ed;
  --line-strong: #d5d8e2;
  --brand: #796cf2;
  --brand-2: #31b99b;
  --brand-soft: #efedff;
  --accent: #ffad52;
  --danger: #e35463;
  --success: #1ca47f;
  --warning: #e79328;
  --topbar: #11131b;
  --topbar-2: #191c27;
  --shadow-sm: 0 1px 2px rgba(24, 26, 34, .05), 0 5px 18px rgba(24, 26, 34, .05);
  --shadow-md: 0 18px 50px rgba(26, 29, 43, .12);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --topbar-height: 62px;
  --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--bg); }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); font-size: 14px; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
img { display: block; max-width: 100%; }
svg.icon { flex: none; }
::selection { background: rgba(121, 108, 242, .22); }

.boot-screen { min-height: 100vh; display: grid; place-content: center; justify-items: center; gap: 12px; color: var(--muted); }
.boot-screen img { filter: drop-shadow(0 12px 22px rgba(105, 92, 230, .25)); }
.boot-screen strong { color: var(--ink); font-size: 18px; }

.app-shell { min-height: 100vh; }
.app-shell-full { height: 100vh; overflow: hidden; }
.topbar { height: var(--topbar-height); background: var(--topbar); color: #f6f7fb; display: flex; align-items: center; padding: 0 24px; gap: 28px; position: sticky; top: 0; z-index: 100; border-bottom: 1px solid rgba(255,255,255,.06); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 760; letter-spacing: -.02em; white-space: nowrap; }
.brand img { width: 34px; height: 34px; }
.brand span { font-size: 16px; }
.topnav { display: flex; align-items: stretch; height: 100%; flex: 1; min-width: 0; }
.topnav a { display: inline-flex; align-items: center; gap: 6px; height: 100%; padding: 0 13px; color: #9fa5b4; position: relative; white-space: nowrap; transition: .18s ease; }
.topnav a:hover { color: #fff; background: rgba(255,255,255,.035); }
.topnav a.active { color: #fff; }
.topnav a.active::after { content: ""; position: absolute; height: 2px; border-radius: 3px; left: 13px; right: 13px; bottom: 0; background: linear-gradient(90deg, var(--brand), var(--brand-2)); }
.topnav em { font-style: normal; font-size: 8px; color: #10121a; background: #73e2c9; padding: 2px 4px; border-radius: 4px; font-weight: 800; transform: translateY(-8px); }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.runtime-chip { display: inline-flex; align-items: center; gap: 8px; padding: 7px 11px; color: #d9dce6; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.08); border-radius: 999px; font-size: 11px; white-space: nowrap; }
.runtime-chip .status-dot { width: 7px; height: 7px; }
.avatar-button { width: 34px; height: 34px; border: 0; border-radius: 50%; cursor: pointer; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-2)); font-weight: 800; }
.contextbar { height: 52px; background: var(--surface); border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; padding: 0 18px; position: relative; z-index: 50; }
.contextbar h1 { margin: 0; font-size: 14px; }
.contextbar-tools { display: flex; align-items: center; gap: 8px; }
.main-content { min-height: calc(100vh - var(--topbar-height)); }
.main-full { height: calc(100vh - var(--topbar-height)); min-height: 0; overflow: hidden; }

.button { min-height: 38px; border: 1px solid transparent; border-radius: 10px; padding: 0 14px; display: inline-flex; align-items: center; justify-content: center; gap: 7px; cursor: pointer; font-weight: 650; transition: .18s ease; white-space: nowrap; }
.button:hover { transform: translateY(-1px); }
.button:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.button-primary { color: #fff; background: linear-gradient(135deg, var(--brand), #6c5ce5); box-shadow: 0 8px 20px rgba(112, 96, 230, .23); }
.button-primary:hover { box-shadow: 0 10px 24px rgba(112, 96, 230, .32); }
.button-secondary { background: #fff; border-color: var(--line); color: var(--ink); }
.button-secondary:hover { border-color: #cfd2dc; background: var(--surface-2); }
.button-dark { background: var(--topbar); color: white; }
.button-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.button-ghost:hover { background: var(--surface-3); color: var(--ink); }
.button-danger { background: #fff1f2; color: var(--danger); border-color: #ffd8dd; }
.button-small { min-height: 32px; padding: 0 10px; font-size: 12px; border-radius: 8px; }
.icon-button { width: 36px; height: 36px; display: inline-grid; place-items: center; border: 1px solid var(--line); background: var(--surface); border-radius: 10px; cursor: pointer; color: var(--muted); transition: .18s ease; }
.icon-button:hover { color: var(--ink); border-color: var(--line-strong); background: var(--surface-2); }

.input, .select, .textarea { width: 100%; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); outline: none; transition: .16s ease; }
.input, .select { min-height: 40px; padding: 0 12px; }
.textarea { padding: 11px 12px; resize: vertical; min-height: 110px; line-height: 1.6; }
.input:focus, .select:focus, .textarea:focus { border-color: rgba(121,108,242,.8); box-shadow: 0 0 0 3px rgba(121,108,242,.1); }
.input-group { position: relative; }
.input-group > svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: #9aa0ad; }
.input-group .input { padding-left: 38px; }
.field { display: grid; gap: 7px; }
.field > label { font-size: 12px; font-weight: 700; color: #555c69; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-stack { display: grid; gap: 14px; }
.help-text { color: var(--muted); font-size: 12px; line-height: 1.55; }
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 4px 8px; border-radius: 999px; font-size: 11px; font-weight: 750; background: var(--surface-3); color: #5d6471; }
.badge-brand { background: var(--brand-soft); color: #6758d9; }
.badge-success { background: #e5f7f1; color: #16896d; }
.badge-warning { background: #fff2df; color: #b16a13; }
.badge-danger { background: #fff0f1; color: #c94352; }

.hero { position: relative; overflow: hidden; min-height: 640px; color: #fff; background: radial-gradient(circle at 70% 10%, rgba(121,108,242,.35), transparent 32%), radial-gradient(circle at 20% 75%, rgba(49,185,155,.18), transparent 30%), linear-gradient(145deg, #11131b, #171a26 55%, #10121a); padding: 76px max(24px, calc((100vw - 1180px)/2)); display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 68px; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 38px 38px; mask-image: linear-gradient(to bottom, #000, transparent 85%); pointer-events: none; }
.hero-copy, .hero-visual { position: relative; z-index: 1; }
.hero-kicker { display: inline-flex; align-items: center; gap: 9px; color: #b9becb; border: 1px solid rgba(255,255,255,.1); background: rgba(255,255,255,.05); padding: 7px 12px; border-radius: 999px; font-size: 12px; }
.hero-kicker i { width: 8px; height: 8px; background: var(--brand-2); border-radius: 50%; box-shadow: 0 0 0 5px rgba(49,185,155,.1); }
.hero h1 { font-size: clamp(42px, 5vw, 68px); line-height: 1.06; letter-spacing: -.045em; margin: 24px 0 20px; max-width: 760px; }
.hero h1 span { background: linear-gradient(100deg, #a89fff, #7ce6cd 70%); -webkit-background-clip: text; color: transparent; }
.hero p { color: #aeb4c2; font-size: 17px; line-height: 1.8; max-width: 650px; margin: 0; }
.hero-actions { display: flex; gap: 12px; margin-top: 30px; }
.hero .button { min-height: 46px; padding: 0 19px; }
.hero .button-secondary { color: #fff; background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.12); }
.hero-meta { display: flex; align-items: center; gap: 24px; margin-top: 34px; color: #858c9b; font-size: 12px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-stack { position: relative; height: 455px; }
.hero-panel { position: absolute; border: 1px solid rgba(255,255,255,.12); background: rgba(29,32,45,.78); backdrop-filter: blur(14px); box-shadow: 0 28px 90px rgba(0,0,0,.35); border-radius: 22px; overflow: hidden; }
.hero-panel-main { width: 86%; left: 6%; top: 52px; transform: rotate(-1.5deg); }
.hero-panel-main img { width: 100%; }
.hero-panel-top { width: 48%; right: -4%; top: 0; padding: 14px; transform: rotate(4deg); }
.hero-panel-bottom { width: 48%; left: -6%; bottom: 2px; padding: 14px; transform: rotate(-4deg); }
.mini-panel-head { display: flex; align-items: center; gap: 7px; color: #d7dae3; font-size: 12px; margin-bottom: 11px; }
.mini-panel-head i { width: 8px; height: 8px; border-radius: 50%; background: var(--brand-2); }
.mini-node { background: #fff; color: #292c35; border-radius: 10px; padding: 10px; display: flex; justify-content: space-between; align-items: center; font-size: 11px; }
.mini-meter { height: 6px; background: rgba(255,255,255,.08); border-radius: 99px; overflow: hidden; margin-top: 10px; }
.mini-meter span { display: block; height: 100%; width: 82%; background: linear-gradient(90deg,var(--brand),var(--brand-2)); }

.section { padding: 88px max(24px, calc((100vw - 1180px)/2)); }
.section-alt { background: #fff; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 30px; }
.eyebrow { display: block; font-size: 11px; font-weight: 850; letter-spacing: .14em; color: var(--brand); margin-bottom: 9px; }
.section-heading h2 { font-size: 34px; letter-spacing: -.035em; margin: 0; }
.section-heading p { color: var(--muted); line-height: 1.7; max-width: 580px; margin: 10px 0 0; }
.feature-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.feature-card { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 24px; min-height: 220px; box-shadow: var(--shadow-sm); transition: .22s ease; position: relative; overflow: hidden; }
.feature-card:hover { transform: translateY(-4px); border-color: #d5d1fa; box-shadow: var(--shadow-md); }
.feature-card::after { content: ""; position: absolute; width: 130px; height: 130px; border-radius: 50%; background: var(--brand-soft); top: -75px; right: -75px; }
.feature-icon { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; color: var(--brand); background: var(--brand-soft); }
.feature-card h3 { margin: 22px 0 10px; font-size: 18px; }
.feature-card p { color: var(--muted); line-height: 1.75; margin: 0; }
.feature-card a { display: inline-flex; align-items: center; gap: 6px; color: var(--brand); font-weight: 750; margin-top: 18px; }
.demo-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 20px; }
.demo-large, .demo-small { background: #fff; border: 1px solid var(--line); border-radius: 22px; overflow: hidden; box-shadow: var(--shadow-sm); }
.demo-large img, .demo-small img { width: 100%; }
.demo-caption { padding: 18px 20px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.demo-caption h3 { margin: 0 0 6px; }
.demo-caption p { margin: 0; color: var(--muted); }
.demo-side { display: grid; gap: 20px; }
.quick-grid { display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); gap: 12px; }
.quick-card { min-height: 130px; border: 1px solid var(--line); border-radius: 18px; background: #fff; padding: 17px; cursor: pointer; transition: .18s ease; }
.quick-card:hover { transform: translateY(-3px); border-color: #cfcaf7; box-shadow: var(--shadow-sm); }
.quick-card .quick-icon { width: 39px; height: 39px; border-radius: 12px; display: grid; place-items: center; background: var(--surface-3); color: var(--brand); margin-bottom: 16px; }
.quick-card strong { display: block; font-size: 13px; }
.quick-card small { display: block; color: var(--muted); line-height: 1.45; margin-top: 5px; }
.cta-section { margin: 0 max(24px, calc((100vw - 1180px)/2)) 80px; border-radius: 28px; overflow: hidden; position: relative; padding: 62px; color: white; background: radial-gradient(circle at 85% 30%, rgba(67,211,179,.35), transparent 27%), linear-gradient(120deg, #222037, #151823); }
.cta-section h2 { font-size: 34px; margin: 0 0 13px; }
.cta-section p { color: #b8bdc9; max-width: 660px; line-height: 1.7; }
.footer { background: #0d0f16; color: #9399a8; padding: 50px max(24px, calc((100vw - 1180px)/2)); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3,1fr); gap: 40px; }
.footer-brand { color: #fff; font-weight: 800; display: flex; align-items: center; gap: 10px; }
.footer-brand img { width: 34px; }
.footer p { line-height: 1.7; }
.footer h4 { color: #e8eaf0; margin: 0 0 16px; }
.footer a { display: block; margin: 9px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.07); margin-top: 38px; padding-top: 20px; display: flex; justify-content: space-between; font-size: 12px; }

.workspace-layout { min-height: calc(100vh - var(--topbar-height)); display: grid; grid-template-columns: 224px minmax(0,1fr); }
.workspace-sidebar { background: #fff; border-right: 1px solid var(--line); padding: 24px 14px; position: sticky; top: var(--topbar-height); height: calc(100vh - var(--topbar-height)); display: flex; flex-direction: column; }
.sidebar-heading { padding: 0 10px 10px; color: #a0a5b1; text-transform: uppercase; letter-spacing: .12em; font-size: 10px; font-weight: 800; }
.sidebar-link { display: flex; align-items: center; gap: 11px; padding: 11px 12px; border-radius: 10px; margin: 2px 0; color: #626875; font-weight: 600; }
.sidebar-link:hover { color: var(--ink); background: var(--surface-2); }
.sidebar-link.active { color: #6253d9; background: var(--brand-soft); }
.sidebar-separator { height: 1px; background: var(--line); margin: 14px 8px; }
.provider-card { margin-top: auto; border: 1px solid var(--line); background: var(--surface-2); border-radius: 12px; padding: 11px; display: flex; align-items: center; gap: 9px; min-width: 0; }
.provider-card div { min-width: 0; }
.provider-card strong, .provider-card small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.provider-card strong { font-size: 12px; }
.provider-card small { color: var(--muted); font-size: 10px; margin-top: 3px; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.status-dot.online { background: var(--success); box-shadow: 0 0 0 4px rgba(28,164,127,.1); }
.status-dot.mock { background: var(--warning); box-shadow: 0 0 0 4px rgba(231,147,40,.1); }
.workspace-main { padding: 32px clamp(20px,3vw,42px) 60px; min-width: 0; }
.page-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 26px; }
.page-heading h1 { margin: 0; font-size: 28px; letter-spacing: -.035em; }
.page-actions { display: flex; gap: 9px; }
.toolbar-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
.toolbar-row .input-group { width: min(340px,100%); }
.toolbar-filters { display: flex; gap: 8px; align-items: center; }
.segmented { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.segmented button { border: 0; background: transparent; padding: 7px 11px; border-radius: 7px; cursor: pointer; color: var(--muted); }
.segmented button.active { background: var(--surface-3); color: var(--ink); font-weight: 700; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(250px,1fr)); gap: 16px; }
.project-card { border: 1px solid var(--line); background: #fff; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-sm); transition: .18s ease; min-width: 0; }
.project-card:hover { transform: translateY(-2px); border-color: #d5d1fa; box-shadow: 0 14px 36px rgba(33,35,48,.1); }
.project-thumb { height: 158px; background: var(--surface-2); position: relative; overflow: hidden; display: grid; place-items: center; }
.project-thumb img { width: 100%; height: 100%; object-fit: cover; }
.project-kind { position: absolute; top: 10px; left: 10px; }
.project-menu { position: absolute; top: 8px; right: 8px; }
.project-body { padding: 15px; }
.project-body h3 { margin: 0 0 7px; font-size: 14px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.project-body p { color: var(--muted); margin: 0; font-size: 11px; }
.new-project-card { min-height: 242px; border: 1.5px dashed #d6d8e1; background: rgba(255,255,255,.55); border-radius: 16px; display: grid; place-items: center; cursor: pointer; color: var(--muted); transition: .18s; }
.new-project-card:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }
.new-project-card div { text-align: center; }
.new-project-card i { width: 52px; height: 52px; border-radius: 16px; background: #fff; display: grid; place-items: center; margin: 0 auto 12px; box-shadow: var(--shadow-sm); }
.skeleton-card { height: 244px; border-radius: 16px; border: 1px solid var(--line); background: #fff; overflow: hidden; padding: 16px; }
.skeleton-card i, .skeleton-card b, .skeleton-card span { display: block; background: linear-gradient(90deg,#f1f2f5,#e7e8ed,#f1f2f5); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: 8px; }
.skeleton-card i { height: 144px; margin: -16px -16px 15px; border-radius: 0; }
.skeleton-card b { height: 15px; width: 72%; }
.skeleton-card span { height: 10px; width: 44%; margin-top: 10px; }
@keyframes shimmer { to { background-position: -200% 0; } }
.empty-state { min-height: 330px; border: 1px dashed var(--line-strong); border-radius: 18px; display: grid; place-content: center; justify-items: center; padding: 30px; text-align: center; background: rgba(255,255,255,.55); }
.empty-icon { width: 58px; height: 58px; border-radius: 18px; display: grid; place-items: center; color: var(--brand); background: var(--brand-soft); }
.empty-state h3 { margin: 16px 0 7px; }
.empty-state p { color: var(--muted); margin: 0 0 18px; max-width: 440px; line-height: 1.65; }

.asset-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(180px,1fr)); gap: 14px; }
.asset-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; position: relative; }
.asset-preview { aspect-ratio: 1/1; background: var(--surface-2); display: grid; place-items: center; overflow: hidden; }
.asset-preview img, .asset-preview video { width: 100%; height: 100%; object-fit: cover; }
.asset-file-icon { width: 60px; height: 60px; border-radius: 18px; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); }
.asset-info { padding: 11px; }
.asset-info strong { display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 12px; }
.asset-info span { display: block; color: var(--muted); font-size: 10px; margin-top: 5px; }
.asset-delete { position: absolute; top: 8px; right: 8px; opacity: 0; transition: .18s; }
.asset-card:hover .asset-delete { opacity: 1; }
.dropzone { border: 1.5px dashed var(--line-strong); min-height: 150px; border-radius: 16px; background: #fff; display: grid; place-content: center; justify-items: center; gap: 7px; color: var(--muted); cursor: pointer; transition: .18s; margin-bottom: 18px; }
.dropzone:hover, .dropzone.dragover { border-color: var(--brand); background: var(--brand-soft); color: var(--brand); }
.dropzone strong { color: var(--ink); }

.canvas-app { height: 100%; display: grid; grid-template-columns: 246px minmax(0,1fr) 296px; background: #eef0f5; }
.canvas-sidebar, .canvas-inspector { background: #fff; min-width: 0; overflow: auto; }
.canvas-sidebar { border-right: 1px solid var(--line); }
.canvas-inspector { border-left: 1px solid var(--line); }
.canvas-pane-title { position: sticky; top: 0; z-index: 4; background: rgba(255,255,255,.94); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); padding: 14px 15px; display: flex; align-items: center; justify-content: space-between; }
.canvas-pane-title h3 { font-size: 13px; margin: 0; }
.node-search { padding: 12px; }
.node-group { padding: 0 12px 14px; }
.node-group-title { font-size: 10px; color: #9aa0ac; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; margin: 10px 2px 8px; }
.node-palette-item { width: 100%; border: 1px solid transparent; background: transparent; border-radius: 10px; padding: 9px; display: flex; align-items: center; gap: 9px; cursor: grab; text-align: left; color: #525966; }
.node-palette-item:hover { background: var(--surface-2); border-color: var(--line); color: var(--ink); }
.node-palette-icon { width: 31px; height: 31px; border-radius: 9px; display: grid; place-items: center; background: var(--surface-3); color: var(--brand); }
.node-palette-item span { min-width: 0; }
.node-palette-item strong, .node-palette-item small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node-palette-item strong { font-size: 11px; }
.node-palette-item small { color: var(--muted); font-size: 9px; margin-top: 2px; }
.canvas-center { min-width: 0; min-height: 0; position: relative; overflow: hidden; }
.canvas-toolbar { position: absolute; top: 12px; left: 50%; z-index: 12; transform: translateX(-50%); border: 1px solid var(--line); background: rgba(255,255,255,.93); backdrop-filter: blur(10px); box-shadow: var(--shadow-sm); border-radius: 12px; padding: 5px; display: flex; gap: 4px; }
.canvas-toolbar .icon-button { width: 34px; height: 34px; border: 0; background: transparent; }
.canvas-toolbar .icon-button:hover { background: var(--surface-3); }
.canvas-status { position: absolute; left: 14px; bottom: 14px; z-index: 12; border: 1px solid var(--line); background: rgba(255,255,255,.94); border-radius: 10px; padding: 8px 11px; display: flex; gap: 12px; color: var(--muted); font-size: 10px; }
.canvas-viewport { position: absolute; inset: 0; overflow: hidden; cursor: default; background-color: #f7f8fb; background-image: radial-gradient(#cfd2dc 1.2px, transparent 1.2px); background-size: 24px 24px; }
.canvas-world { position: absolute; width: 2600px; height: 1800px; transform-origin: 0 0; }
.edge-layer { position: absolute; inset: 0; width: 2600px; height: 1800px; overflow: visible; pointer-events: none; }
.edge-path { fill: none; stroke: #a7aabd; stroke-width: 2.2; }
.edge-path.image { stroke: #7a6bf1; }
.edge-path.text { stroke: #2fb99b; }
.edge-path.video { stroke: #ed9d42; }
.edge-path.audio { stroke: #dc6087; }
.canvas-node { position: absolute; width: 232px; border: 1px solid #dadce5; background: #fff; border-radius: 14px; box-shadow: 0 9px 25px rgba(42,45,60,.11); user-select: none; transition: box-shadow .15s, border-color .15s; }
.canvas-node:hover { box-shadow: 0 14px 34px rgba(42,45,60,.16); }
.canvas-node.selected { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(121,108,242,.12), 0 14px 34px rgba(42,45,60,.16); }
.canvas-node.running { border-color: var(--warning); }
.canvas-node.succeeded { border-color: var(--success); }
.canvas-node.failed { border-color: var(--danger); }
.node-header { height: 42px; padding: 0 11px; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--line); cursor: move; border-radius: 14px 14px 0 0; background: #fbfbfd; }
.node-header .node-color { width: 9px; height: 9px; border-radius: 50%; background: var(--brand); }
.node-header strong { font-size: 11px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node-body { min-height: 84px; padding: 11px; color: var(--muted); font-size: 10px; line-height: 1.5; }
.node-body textarea { min-height: 64px; width: 100%; font-size: 10px; border: 1px solid var(--line); border-radius: 8px; padding: 8px; resize: none; outline: none; }
.node-summary { background: var(--surface-2); border-radius: 8px; padding: 8px; min-height: 50px; }
.node-result-thumb { margin-top: 8px; border-radius: 8px; overflow: hidden; aspect-ratio: 4/3; background: var(--surface-3); }
.node-result-thumb img { width: 100%; height: 100%; object-fit: cover; }
.node-port { position: absolute; width: 13px; height: 13px; border: 2px solid #fff; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 1px #a9adc0; cursor: crosshair; z-index: 3; }
.node-port.input { left: -7px; top: 70px; }
.node-port.output { right: -7px; top: 70px; }
.node-port.text { background: #2fb99b; }
.node-port.image { background: #7a6bf1; }
.node-port.video { background: #ed9d42; }
.node-port.audio { background: #dc6087; }
.inspector-empty { padding: 40px 20px; text-align: center; color: var(--muted); }
.inspector-section { padding: 15px; border-bottom: 1px solid var(--line); display: grid; gap: 12px; }
.inspector-section h4 { margin: 0; font-size: 11px; }
.inspector-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.job-progress { position: absolute; right: 14px; bottom: 14px; z-index: 15; width: 300px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-md); padding: 14px; }
.progress-line { height: 7px; border-radius: 99px; background: var(--surface-3); overflow: hidden; margin: 10px 0; }
.progress-line span { display: block; height: 100%; background: linear-gradient(90deg,var(--brand),var(--brand-2)); transition: width .3s; }
.chat-drawer { position: absolute; right: 0; top: 0; bottom: 0; width: 360px; z-index: 20; background: #fff; box-shadow: -18px 0 50px rgba(35,38,50,.12); border-left: 1px solid var(--line); display: grid; grid-template-rows: auto 1fr auto; transform: translateX(100%); transition: .22s ease; }
.chat-drawer.open { transform: translateX(0); }
.chat-header { padding: 14px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.chat-messages { overflow: auto; padding: 14px; display: grid; align-content: start; gap: 12px; }
.chat-message { max-width: 88%; border-radius: 13px; padding: 10px 12px; line-height: 1.6; font-size: 12px; }
.chat-message.user { justify-self: end; background: var(--brand); color: #fff; border-bottom-right-radius: 4px; }
.chat-message.assistant { justify-self: start; background: var(--surface-2); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.chat-message p { margin: 0 0 8px; }
.chat-message p:last-child { margin-bottom: 0; }
.chat-message ol { padding-left: 18px; }
.chat-composer { padding: 12px; border-top: 1px solid var(--line); }
.chat-composer textarea { min-height: 78px; }
.chat-composer-actions { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; }

.tool-page { padding: 34px max(22px,calc((100vw - 1180px)/2)) 70px; }
.tool-page-head { margin-bottom: 26px; }
.tool-page-head h1 { font-size: 32px; letter-spacing: -.04em; margin: 0 0 10px; }
.tool-page-head p { color: var(--muted); line-height: 1.7; margin: 0; }
.tool-tabs { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 20px; }
.tool-tab { border: 1px solid var(--line); background: #fff; padding: 8px 13px; border-radius: 999px; cursor: pointer; color: var(--muted); }
.tool-tab.active { border-color: var(--brand); background: var(--brand-soft); color: var(--brand); font-weight: 700; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(230px,1fr)); gap: 15px; }
.tool-card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 18px; cursor: pointer; transition: .18s ease; min-height: 164px; }
.tool-card:hover { transform: translateY(-3px); border-color: #d4cffb; box-shadow: var(--shadow-md); }
.tool-card-head { display: flex; align-items: center; justify-content: space-between; }
.tool-card-icon { width: 44px; height: 44px; border-radius: 13px; background: var(--brand-soft); color: var(--brand); display: grid; place-items: center; }
.tool-card h3 { margin: 16px 0 7px; font-size: 15px; }
.tool-card p { color: var(--muted); line-height: 1.55; margin: 0; font-size: 12px; }
.tool-workspace { display: grid; grid-template-columns: 360px minmax(0,1fr); gap: 18px; }
.tool-panel, .result-panel { background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.panel-heading { padding: 15px 17px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.panel-heading h3 { margin: 0; font-size: 14px; }
.panel-body { padding: 17px; }
.result-stage { min-height: 570px; display: grid; place-items: center; background-color: #f7f7fa; background-image: linear-gradient(45deg,#eee 25%,transparent 25%),linear-gradient(-45deg,#eee 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#eee 75%),linear-gradient(-45deg,transparent 75%,#eee 75%); background-size: 22px 22px; background-position: 0 0,0 11px,11px -11px,-11px 0; }
.result-stage img { max-width: 90%; max-height: 520px; object-fit: contain; box-shadow: var(--shadow-md); }
.result-placeholder { max-width: 380px; text-align: center; padding: 30px; color: var(--muted); }
.result-placeholder i { width: 64px; height: 64px; border-radius: 20px; display: grid; place-items: center; margin: 0 auto 14px; color: var(--brand); background: var(--brand-soft); }
.local-editor { display: grid; grid-template-columns: 300px 1fr; gap: 16px; }
.local-editor-controls { display: grid; align-content: start; gap: 14px; }
.editor-canvas-wrap { min-height: 540px; border-radius: 14px; background: #ededf2; display: grid; place-items: center; overflow: auto; }
.editor-canvas-wrap canvas { max-width: 100%; max-height: 520px; background: #fff; box-shadow: var(--shadow-sm); }
.range-row { display: grid; grid-template-columns: 1fr 48px; gap: 8px; align-items: center; }
.range-row input[type="range"] { width: 100%; accent-color: var(--brand); }

.poster-app { height: 100%; display: grid; grid-template-columns: 250px minmax(0,1fr) 300px; background: #e9ebf1; }
.poster-toolbar, .poster-properties { background: #fff; overflow: auto; }
.poster-toolbar { border-right: 1px solid var(--line); }
.poster-properties { border-left: 1px solid var(--line); }
.poster-center {
  position: relative; min-width: 0; overflow: auto; padding: 46px; display: grid; place-items: start center; }
.poster-stage { width: 600px; height: 800px; background: #fff; position: relative; box-shadow: 0 20px 50px rgba(25,28,38,.18); overflow: hidden; transform-origin: top center; }
.poster-stage::before { content: ""; position: absolute; inset: 0; background: linear-gradient(145deg,#f4f0ff,#dff8f1 55%,#fff0dd); }
.poster-layer { position: absolute; cursor: move; user-select: none; border: 1px solid transparent; min-width: 30px; min-height: 20px; }
.poster-layer.selected { border-color: var(--brand); outline: 2px solid rgba(121,108,242,.16); }
.poster-layer.text { white-space: pre-wrap; }
.poster-layer.shape { border: 0; }
.poster-layer img { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.poster-add-list { padding: 12px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.poster-add-button { min-height: 78px; border: 1px solid var(--line); background: #fff; border-radius: 12px; cursor: pointer; display: grid; place-content: center; justify-items: center; gap: 7px; color: var(--muted); }
.poster-add-button:hover { background: var(--surface-2); color: var(--brand); border-color: #d3cff7; }
.layer-list { padding: 10px; display: grid; gap: 5px; }
.layer-row { display: flex; align-items: center; gap: 8px; border-radius: 9px; padding: 8px; cursor: pointer; color: var(--muted); }
.layer-row:hover, .layer-row.active { background: var(--surface-2); color: var(--ink); }
.layer-row span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }

.agent-page { height: calc(100vh - var(--topbar-height)); display: grid; grid-template-columns: 250px minmax(0,1fr); background: #fff; }
.agent-sidebar { border-right: 1px solid var(--line); background: var(--surface-2); display: flex; flex-direction: column; min-height: 0; }
.agent-modes { padding: 14px; display: grid; gap: 5px; }
.agent-mode { border: 0; background: transparent; padding: 10px; border-radius: 10px; display: flex; gap: 9px; align-items: center; cursor: pointer; color: var(--muted); text-align: left; }
.agent-mode:hover, .agent-mode.active { background: #fff; color: var(--ink); box-shadow: var(--shadow-sm); }
.agent-history { border-top: 1px solid var(--line); padding: 14px; overflow: auto; flex: 1; }
.agent-history h4 { margin: 0 0 10px; font-size: 11px; color: var(--muted); }
.history-item { padding: 9px; border-radius: 9px; cursor: pointer; font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-item:hover { background: #fff; }
.agent-main { min-width: 0; min-height: 0; display: grid; grid-template-rows: auto 1fr auto; }
.agent-header { border-bottom: 1px solid var(--line); padding: 13px 20px; display: flex; justify-content: space-between; align-items: center; }
.agent-header h1 { margin: 0; font-size: 15px; }
.agent-thread { overflow: auto; padding: 30px max(22px,calc((100% - 800px)/2)); display: grid; align-content: start; gap: 18px; }
.agent-welcome { text-align: center; max-width: 720px; justify-self: center; padding: 50px 0 20px; }
.agent-orb { width: 74px; height: 74px; border-radius: 24px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg,var(--brand),var(--brand-2)); box-shadow: 0 18px 45px rgba(94,83,210,.26); margin: 0 auto 20px; }
.agent-welcome h2 { font-size: 26px; margin: 0 0 10px; }
.agent-welcome p { color: var(--muted); line-height: 1.7; }
.suggestion-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; margin-top: 24px; }
.suggestion { border: 1px solid var(--line); background: #fff; border-radius: 12px; padding: 12px; cursor: pointer; text-align: left; color: #555b68; }
.suggestion:hover { border-color: var(--brand); background: var(--brand-soft); }
.agent-message { display: flex; gap: 12px; max-width: 760px; width: 100%; justify-self: center; }
.agent-message.user { flex-direction: row-reverse; }
.message-avatar { width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; background: var(--surface-3); color: var(--brand); flex: none; }
.agent-message.user .message-avatar { color: #fff; background: var(--brand); }
.message-bubble { border: 1px solid var(--line); background: var(--surface-2); border-radius: 14px; padding: 13px 15px; line-height: 1.7; min-width: 0; }
.agent-message.user .message-bubble { color: #fff; background: var(--brand); border-color: var(--brand); }
.message-bubble p { margin: 0 0 8px; }
.message-bubble p:last-child { margin-bottom: 0; }
.message-bubble ol { padding-left: 20px; }
.tool-call-list { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.tool-call-chip { font-size: 10px; border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 5px 8px; color: var(--muted); }
.agent-composer-wrap { padding: 15px max(22px,calc((100% - 820px)/2)) 20px; background: linear-gradient(transparent,#fff 25%); }
.agent-composer { border: 1px solid var(--line-strong); border-radius: 16px; background: #fff; box-shadow: 0 12px 30px rgba(32,35,44,.1); padding: 10px; }
.agent-composer textarea { width: 100%; min-height: 70px; border: 0; resize: none; outline: none; padding: 7px; }
.agent-composer-footer { display: flex; justify-content: space-between; align-items: center; }

.prompt-grid { columns: 3 290px; column-gap: 16px; }
.prompt-card { break-inside: avoid; background: #fff; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; margin-bottom: 16px; box-shadow: var(--shadow-sm); }
.prompt-visual { height: 135px; background: radial-gradient(circle at 80% 20%,rgba(255,255,255,.55),transparent 25%), linear-gradient(145deg,#e8e3ff,#dff7f1); display: grid; place-items: center; color: rgba(70,66,100,.7); }
.prompt-visual.variant-1 { background: linear-gradient(145deg,#ffe8d0,#e9e4ff); }
.prompt-visual.variant-2 { background: linear-gradient(145deg,#d9f7ee,#e4eeff); }
.prompt-visual.variant-3 { background: linear-gradient(145deg,#f5e3ee,#e4f3ee); }
.prompt-content { padding: 15px; }
.prompt-content h3 { font-size: 14px; margin: 0 0 7px; }
.prompt-content p { color: var(--muted); font-size: 11px; line-height: 1.65; margin: 0; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.prompt-tags { display: flex; gap: 5px; flex-wrap: wrap; margin: 12px 0; }
.prompt-footer { display: flex; justify-content: space-between; align-items: center; }




.learning-intro { margin-bottom: 18px; padding: 24px; border-radius: 20px; color: #fff; background: radial-gradient(circle at 85% 20%,rgba(126,230,206,.22),transparent 28%), linear-gradient(135deg,#171a26,#282b3c); display: flex; align-items: center; justify-content: space-between; gap: 26px; overflow: hidden; }
.learning-intro h2 { margin: 8px 0 10px; font-size: clamp(24px,3vw,36px); letter-spacing: -.035em; }
.learning-intro p { margin: 0; max-width: 750px; color: #b8bdca; line-height: 1.75; }
.learning-intro .eyebrow { color: #8ce5d0; }
.learning-flow { min-width: 270px; display: flex; align-items: center; justify-content: center; gap: 7px; flex-wrap: wrap; }
.learning-flow span { padding: 7px 10px; border: 1px solid rgba(255,255,255,.1); background: rgba(255,255,255,.07); border-radius: 999px; font-size: 10px; color: #e7e9ef; }
.learning-flow svg { color: #737b91; }
.learning-stats { grid-template-columns: repeat(4,minmax(0,1fr)); }
.knowledge-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(290px,1fr)); gap: 15px; }
.knowledge-card { min-width: 0; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 17px; box-shadow: var(--shadow-sm); transition: .18s ease; }
.knowledge-card:hover { transform: translateY(-2px); border-color: #d9d5fb; box-shadow: var(--shadow-md); }
.knowledge-card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.knowledge-type { display: inline-flex; align-items: center; gap: 7px; min-height: 30px; padding: 0 10px; border-radius: 9px; font-size: 11px; font-weight: 800; background: #f0efff; color: #6658d7; }
.knowledge-type-product { color: #8c5a17; background: #fff2df; }
.knowledge-type-brand { color: #426596; background: #eaf2ff; }
.knowledge-type-skill { color: #6758d9; background: #efedff; }
.knowledge-type-failure { color: #be4453; background: #fff0f1; }
.knowledge-type-review { color: #18856b; background: #e4f7f0; }
.knowledge-card h3 { margin: 16px 0 8px; font-size: 16px; letter-spacing: -.015em; }
.knowledge-card > p { height: 66px; margin: 0; color: var(--muted); line-height: 1.65; font-size: 12px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; }
.knowledge-tags { display: flex; flex-wrap: wrap; gap: 5px; min-height: 25px; margin: 13px 0 10px; }
.knowledge-meta { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; padding-top: 10px; border-top: 1px solid var(--line); color: #979ca7; font-size: 10px; }
.knowledge-meta span:not(:last-child)::after { content: "·"; margin-left: 7px; }
.knowledge-actions { display: flex; gap: 7px; margin-top: 13px; align-items: center; }
.knowledge-actions .icon-button { margin-left: auto; width: 32px; height: 32px; }
.knowledge-editor { min-height: 230px; font-family: ui-monospace,SFMono-Regular,Consolas,monospace; font-size: 12px; }
.knowledge-detail-meta { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; }
.knowledge-summary { color: var(--muted); line-height: 1.7; }
.knowledge-detail pre { white-space: pre-wrap; word-break: break-word; padding: 16px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface-2); color: #404652; font: 12px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace; max-height: 420px; overflow: auto; }
.learning-test-result { margin-top: 14px; border: 1px solid var(--line); border-radius: 14px; padding: 15px; background: var(--surface-2); }
.learning-test-result > div { display: flex; align-items: end; gap: 10px; }
.learning-test-result strong { font-size: 28px; }
.learning-test-result span { font-weight: 800; padding-bottom: 4px; }
.learning-test-result.passed strong, .learning-test-result.passed span { color: var(--success); }
.learning-test-result.failed strong, .learning-test-result.failed span { color: var(--warning); }
.learning-test-result ul { margin: 12px 0 0; padding-left: 19px; color: var(--muted); line-height: 1.8; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(135px,1fr)); gap: 12px; margin-bottom: 18px; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.stat-card span { display: block; color: var(--muted); font-size: 11px; }
.stat-card strong { display: block; margin-top: 9px; font-size: 26px; letter-spacing: -.04em; }
.data-panel { background: #fff; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; margin-bottom: 16px; }
.data-panel-head { padding: 14px 16px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; }
.data-panel-head h3 { margin: 0; font-size: 13px; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 11px 14px; border-bottom: 1px solid var(--line); text-align: left; font-size: 11px; }
.data-table th { color: var(--muted); background: var(--surface-2); font-weight: 700; }
.data-table tr:last-child td { border-bottom: 0; }

.docs-layout { display: grid; grid-template-columns: 240px minmax(0,1fr); max-width: 1140px; margin: 0 auto; padding: 34px 24px 80px; gap: 34px; }
.docs-nav { position: sticky; top: calc(var(--topbar-height) + 24px); align-self: start; display: grid; gap: 4px; }
.docs-nav a { padding: 8px 10px; border-radius: 8px; color: var(--muted); }
.docs-nav a:hover { background: #fff; color: var(--ink); }
.docs-article { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: clamp(24px,4vw,54px); line-height: 1.8; }
.docs-article h1 { margin-top: 0; font-size: 32px; }
.docs-article h2 { margin-top: 38px; border-bottom: 1px solid var(--line); padding-bottom: 9px; }
.docs-article pre { background: #141720; color: #dce0ea; border-radius: 12px; padding: 16px; overflow: auto; }
.docs-article code { font-family: ui-monospace,SFMono-Regular,Consolas,monospace; }
.docs-note { padding: 14px; border-left: 3px solid var(--brand); background: var(--brand-soft); border-radius: 0 10px 10px 0; }

.modal-overlay { position: fixed; inset: 0; background: rgba(15,17,24,.5); backdrop-filter: blur(3px); z-index: 1000; display: grid; place-items: center; padding: 20px; opacity: 0; transition: .18s; }
.modal-overlay.show { opacity: 1; }
.modal-card { width: min(var(--modal-width,560px),100%); max-height: min(780px,calc(100vh - 40px)); background: #fff; border-radius: 18px; box-shadow: 0 32px 90px rgba(0,0,0,.28); display: grid; grid-template-rows: auto minmax(0,1fr) auto; overflow: hidden; transform: translateY(12px) scale(.98); transition: .18s; }
.modal-overlay.show .modal-card { transform: none; }
.modal-header { padding: 17px 19px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; }
.modal-header h3 { margin: 0; font-size: 16px; }
.modal-header .icon-button { border: 0; }
.modal-body { padding: 19px; overflow: auto; }
.modal-actions { padding: 13px 19px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 8px; }
.toast-root { position: fixed; right: 18px; top: 76px; z-index: 1200; display: grid; gap: 9px; pointer-events: none; }
.toast { min-width: 250px; max-width: 390px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 11px 13px; box-shadow: var(--shadow-md); display: flex; align-items: center; gap: 9px; opacity: 0; transform: translateX(16px); transition: .2s; }
.toast.show { opacity: 1; transform: none; }
.toast-success { color: var(--success); }
.toast-error { color: var(--danger); }
.toast span { color: var(--ink); }

@media (max-width: 1120px) {
  .topnav a { padding: 0 9px; }
  .topnav a span { display: none; }
  .quick-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .feature-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .canvas-app { grid-template-columns: 215px minmax(0,1fr); }
  .canvas-inspector { display: none; }
  .poster-app { grid-template-columns: 210px minmax(0,1fr); }
  .poster-properties { display: none; }
  .stats-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .learning-intro { align-items: flex-start; flex-direction: column; }
  .learning-flow { justify-content: flex-start; min-width: 0; }
}

@media (max-width: 820px) {
  .topbar { padding: 0 14px; gap: 12px; }
  .brand span { display: none; }
  .runtime-chip { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 56px; }
  .hero-visual { display: none; }
  .feature-grid, .demo-grid { grid-template-columns: 1fr; }
  .quick-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .workspace-layout { grid-template-columns: 1fr; }
  .workspace-sidebar { display: none; }
  .workspace-main { padding: 24px 16px 50px; }
  .tool-workspace, .local-editor { grid-template-columns: 1fr; }
  .agent-page { grid-template-columns: 1fr; }
  .agent-sidebar { display: none; }
  .prompt-grid { columns: 2 250px; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { position: static; display: flex; overflow: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .canvas-app { grid-template-columns: 1fr; }
  .canvas-sidebar { display: none; }
  .poster-app { grid-template-columns: 1fr; }
  .poster-toolbar { display: none; }
}

@media (max-width: 560px) {
  .topnav a:nth-child(n+5) { display: none; }
  .hero { min-height: 540px; padding-left: 18px; padding-right: 18px; }
  .hero h1 { font-size: 39px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .section { padding: 60px 18px; }
  .section-heading { align-items: start; flex-direction: column; }
  .section-heading h2 { font-size: 28px; }
  .feature-grid, .quick-grid { grid-template-columns: 1fr; }
  .cta-section { margin-left: 14px; margin-right: 14px; padding: 36px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .page-heading, .toolbar-row { align-items: stretch; flex-direction: column; }
  .page-actions { flex-wrap: wrap; }
  .prompt-grid { columns: 1; }
  .suggestion-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .knowledge-actions { flex-wrap: wrap; }
  .knowledge-actions .icon-button { margin-left: 0; }
  .form-grid { grid-template-columns: 1fr; }
}

/* R2 account and administration surfaces. */
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at 12% 8%, rgba(121,108,242,.18), transparent 28%), radial-gradient(circle at 88% 92%, rgba(49,185,155,.16), transparent 30%), #11131b; }
.auth-card { width: min(100%, 460px); display: grid; gap: 24px; padding: clamp(24px,5vw,42px); color: #eef0f8; background: rgba(27,30,42,.96); border: 1px solid rgba(255,255,255,.1); border-radius: 22px; box-shadow: 0 28px 80px rgba(0,0,0,.35); }
.auth-card header h1 { margin: 5px 0 9px; font-size: 30px; letter-spacing: -.04em; }
.auth-card header p, .auth-card footer p { margin: 0; color: #b5bac8; line-height: 1.65; }
.auth-card footer { border-top: 1px solid rgba(255,255,255,.1); padding-top: 18px; text-align: center; font-size: 13px; }
.auth-card footer a { color: #aba3ff; font-weight: 750; }
.auth-kicker { color: #8ee5d3 !important; font-size: 11px; font-weight: 850; letter-spacing: .13em; text-transform: uppercase; }
.auth-card .field > span { color: #dfe2eb; font-size: 12px; font-weight: 750; }
.auth-card .input { background: rgba(255,255,255,.97); }
.auth-card .help-text { color: #aeb4c2; }
.auth-card .button { width: 100%; min-height: 44px; }
.auth-error { margin: 0; padding: 10px 12px; border-radius: 10px; color: #ffd7dc; background: rgba(227,84,99,.16); border: 1px solid rgba(255,159,170,.28); font-size: 12px; line-height: 1.5; }

.admin-page { min-height: 100vh; background: var(--bg); }
.admin-header { min-height: 62px; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 10px clamp(16px,3vw,36px); color: #eff1f7; background: var(--topbar); }
.admin-brand { font-weight: 800; white-space: nowrap; }
.admin-nav { display: flex; align-items: center; gap: 4px; min-width: 0; overflow: auto; }
.admin-nav a { padding: 9px 10px; border-radius: 8px; color: #b7bdca; font-size: 12px; white-space: nowrap; }
.admin-nav a.active, .admin-nav a:hover { color: #fff; background: rgba(255,255,255,.1); }
.admin-header > a { color: #ddd9ff; font-size: 12px; font-weight: 750; white-space: nowrap; }
.admin-main { width: min(1200px, 100%); margin: 0 auto; padding: clamp(20px,4vw,44px) clamp(16px,3vw,32px) 72px; }
.admin-heading { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.admin-heading h1 { margin: 0; font-size: clamp(24px,4vw,34px); letter-spacing: -.04em; }
.admin-heading p { margin: 8px 0 0; color: var(--muted); line-height: 1.65; }
.admin-callout { margin-bottom: 16px; padding: 13px 15px; border: 1px solid #dedafa; background: #f5f3ff; color: #564d9c; border-radius: 12px; font-size: 12px; line-height: 1.6; }
.admin-table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow-sm); }
.admin-table-wrap .data-table { min-width: 650px; }
.admin-empty { padding: 40px 22px; text-align: center; color: var(--muted); }
.admin-detail { display: grid; gap: 12px; min-width: 0; }
.admin-detail h3 { margin: 0; font-size: 14px; }
.admin-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.admin-field-value { color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }

@media (max-width: 560px) {
  .auth-page { align-items: start; padding: 16px; }
  .auth-card { margin-top: 30px; padding: 24px 20px; border-radius: 18px; }
  .admin-header { align-items: flex-start; flex-wrap: wrap; }
  .admin-header > a { margin-left: auto; }
  .admin-nav { order: 3; width: 100%; }
  .admin-main { padding-bottom: 48px; }
  .admin-heading { align-items: flex-start; flex-direction: column; }
}