:root{--topicbell-carbon: #14161a;--topicbell-porcelain: #f6f8f9;--topicbell-panel: #ffffff;--topicbell-muted-graphite: #667085;--topicbell-mist-line: #d8dee5;--topicbell-relay-teal: #00a88f;--topicbell-relay-teal-ink: #005c50;--topicbell-pulse-lime: #b7f34a;--topicbell-incident-red: #e04f3a;--topicbell-delivery-blue: #3b82f6;--topicbell-queue-amber: #f2a93b;--topicbell-font-display: Avenir Next, Avenir, Segoe UI, sans-serif;--topicbell-font-body: Avenir Next, Avenir, Segoe UI, sans-serif;--topicbell-font-mono: SFMono-Regular, Consolas, monospace;--topicbell-radius-control: 6px;--topicbell-radius-panel: 8px;--topicbell-radius-mark: 18px}:root{color-scheme:light;font-family:var(--topicbell-font-body, Avenir Next, Avenir, "Segoe UI", sans-serif);--paper: var(--topicbell-porcelain);--ink: var(--topicbell-carbon);--muted: var(--topicbell-muted-graphite);--line: var(--topicbell-mist-line);--panel: var(--topicbell-panel);--green: var(--topicbell-relay-teal);--green-ink: var(--topicbell-relay-teal-ink);--lime: var(--topicbell-pulse-lime);--amber: var(--topicbell-queue-amber);--red: var(--topicbell-incident-red);--blue: var(--topicbell-delivery-blue);--mono: var(--topicbell-font-mono, "SFMono-Regular", Consolas, monospace);--shadow: 0 24px 70px rgb(20 22 26 / 10%);--shadow-sm: 0 1px 2px rgb(20 22 26 / 6%), 0 1px 3px rgb(20 22 26 / 7%);--shadow-md: 0 6px 16px rgb(20 22 26 / 8%), 0 2px 6px rgb(20 22 26 / 6%);--ring: 0 0 0 3px rgb(0 168 143 / 20%);--ease: cubic-bezier(.2, .6, .2, 1);--field: #ffffff;--panel-soft: rgb(246 248 249 / 72%);--panel-strong: rgb(255 253 250 / 94%);--grid-line: rgb(20 22 26 / 5%);--green-wash: rgb(0 168 143 / 9%);--lime-wash: rgb(183 243 74 / 18%);--command-bg: #14161a;--command-fg: #f6f8f9}:root[data-theme=dark]{color-scheme:dark;--paper: #0d1114;--ink: #f4f7f8;--muted: #9aa7b4;--line: #2b353d;--panel: #151b20;--green: #00c5a9;--green-ink: #7fe9d9;--lime: #c4ff55;--amber: #f6bd55;--red: #ff705c;--blue: #6aa2ff;--shadow: 0 24px 70px rgb(0 0 0 / 34%);--shadow-sm: 0 1px 2px rgb(0 0 0 / 40%);--shadow-md: 0 8px 22px rgb(0 0 0 / 42%);--ring: 0 0 0 3px rgb(0 197 169 / 26%);--field: #10161a;--panel-soft: rgb(21 27 32 / 78%);--panel-strong: rgb(21 27 32 / 96%);--grid-line: rgb(255 255 255 / 6%);--green-wash: rgb(0 197 169 / 13%);--lime-wash: rgb(196 255 85 / 14%);--command-bg: #070b0d;--command-fg: #f4f7f8}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;color:var(--ink);background:radial-gradient(120% 80% at 100% 0%,var(--green-wash),transparent 55%),linear-gradient(180deg,var(--panel-strong),transparent 240px),var(--paper);background-attachment:fixed;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,select,textarea{font:inherit}button{min-height:40px;border:1px solid var(--ink);border-radius:6px;padding:0 16px;color:var(--panel);background:var(--ink);font-weight:600;cursor:pointer;box-shadow:var(--shadow-sm);transition:background .16s var(--ease),box-shadow .16s 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var(--ink);border-bottom:0;border-radius:16px 16px 4px 4px;background:var(--green)}.bell-shell:before{position:absolute;left:-6px;right:-6px;bottom:-9px;height:3px;border-radius:999px;background:var(--ink);content:""}.bell-shell:after{position:absolute;left:9px;bottom:-18px;width:10px;height:6px;border:3px solid var(--ink);border-top:0;border-radius:0 0 999px 999px;content:""}.bell-node{width:9px;height:9px;border:2px solid var(--ink);border-radius:50%;background:var(--lime)}.node-left{left:9px;top:24px}.node-top{left:22px;top:10px}.node-right{right:9px;top:24px}.connection-pill{display:inline-flex;align-items:center;gap:8px;min-height:36px;border:1px solid var(--line);border-radius:999px;padding:0 14px;color:var(--muted);background:var(--panel);box-shadow:var(--shadow-sm);font-size:.82rem;font-weight:600}.connection-pill span{width:8px;height:8px;border-radius:50%;background:var(--muted)}.connection-pill.is-live{color:var(--green-ink);border-color:#00a88f61;background:var(--green-wash)}.connection-pill.is-live span{background:var(--green);animation:pulse-dot 2s var(--ease) infinite}@keyframes pulse-dot{0%{box-shadow:0 0 #00a88f57}70%{box-shadow:0 0 0 7px #00a88f00}to{box-shadow:0 0 #00a88f00}}.workspace{display:grid;grid-template-columns:minmax(280px,360px) 1fr;gap:18px;align-items:start}.control-panel,.stream-panel{border:1px solid var(--line);border-radius:8px;background:var(--panel-strong);box-shadow:var(--shadow-md)}.control-panel{position:sticky;top:18px;display:grid;gap:18px;padding:18px}.topic-card,.schema-panel{border:1px solid var(--line);border-radius:8px;padding:14px;background:var(--panel-soft)}.topic-card{display:grid;gap:10px}.topic-card p,.schema-panel p,.form-note,.message-header p{margin:0;color:var(--muted);line-height:1.45}.topic-card-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.topic-card-head span{border:1px solid rgb(0 168 143 / 32%);border-radius:999px;padding:4px 8px;color:var(--green-ink);background:#00a88f17;font-size:.78rem}.topic-card dl{display:grid;gap:8px;margin:0}.topic-card dl div{display:grid;gap:3px}.topic-card dt{color:var(--muted);font-size:.75rem;font-weight:700;text-transform:uppercase}.topic-card dd{margin:0;overflow-wrap:anywhere;font-family:SFMono-Regular,Consolas,monospace;font-size:.82rem}.stack,.composer{display:grid;gap:14px}.compact{gap:10px}.panel-title,.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.account-panel{display:grid;gap:12px;border:1px solid var(--line);border-radius:8px;padding:14px;background:var(--panel-soft)}.account-panel p,.account-panel 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code{display:block;padding:16px;color:var(--command-fg);font-family:SFMono-Regular,Consolas,monospace;font-size:.92rem;line-height:1.65;overflow-wrap:anywhere;white-space:pre-wrap}.landing-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}.landing-strip article,.landing-flow li,.management-cards article{display:grid;gap:8px;border:1px solid var(--line);border-radius:8px;padding:16px;background:var(--panel-strong)}.landing-strip span,.landing-flow span,.landing-management p,.management-cards a{color:var(--muted);line-height:1.5}.landing-management,.landing-flow,.management-overview{margin-top:18px;border:1px solid var(--ink);border-radius:8px;padding:22px;background:var(--panel-strong);box-shadow:var(--shadow)}.landing-management{display:grid;grid-template-columns:minmax(0,.88fr) minmax(320px,1fr);gap:24px;align-items:center}.landing-management h2,.landing-flow h2{margin:4px 0 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