:root{--ink: #16202b;--muted: #5d6b7a;--line: #e3e8ee;--bg: #fff;--raised: #f7f9fb;--navy: #1c3a5e;--warn: #8a5a00;--warn-bg: #fdf3e0;--bad: #8c2f2f;--bad-bg: #fbeded;--ok: #1f6b45;--ok-bg: #e9f5ee}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font:15px/1.45 system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}.wrap{max-width:1040px;margin:0 auto;padding:0 16px}.app{min-height:100vh;display:flex;flex-direction:column}.top{border-bottom:1px solid var(--line);background:var(--bg);position:sticky;top:0;z-index:10}.top-inner{display:flex;align-items:center;gap:12px;height:56px;padding:0 18px}.brand{font-weight:650;color:var(--navy);letter-spacing:-.01em}.brand-logo{height:26px;width:auto;display:block}.top-group{color:var(--muted);font-size:13.5px;border-left:1px solid 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6px;text-align:right}.pill.ok{background:#e3f3e8;color:#1f6b3a}@media(prefers-color-scheme:dark){.pill.ok{background:#1a2e22;color:#8fd4a6}}@media(max-width:860px){.campaigns{grid-template-columns:minmax(0,1fr)}}.stale{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;padding:8px 16px;background:var(--warn-bg);color:var(--warn);font-size:13.5px}.stale button{padding:4px 12px;font-size:13px}.preview-as a.link.small{font-size:12.5px;white-space:nowrap;color:var(--navy);text-decoration:none}.preview-as a.link.small:hover{text-decoration:underline}.build-panel{border:1px solid var(--line);border-radius:9px;padding:14px;margin:0 0 16px;display:flex;flex-direction:column;gap:12px}.build-panel-title{font-size:15px;font-weight:700;margin:0}.build-panel .group-note{margin:-6px 0 0}.build-advanced summary{cursor:pointer;font-size:12.5px;color:var(--muted)}.build-advanced[open] summary{margin-bottom:10px}.build-row{display:flex;flex-wrap:wrap;gap:14px}.build-row .field{flex:1 1 220px;min-width:0}.segment-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px;margin-top:6px}.segment-card{position:relative;display:flex;flex-direction:column;gap:3px;border:1px solid var(--line);border-radius:9px;padding:10px 12px;cursor:pointer}.segment-card input{position:absolute;opacity:0;pointer-events:none}.segment-card.on{border-color:var(--navy);background:var(--raised)}.segment-card-label{font-weight:600;font-size:13.5px}.segment-card-hint{font-size:12px;color:var(--muted)}