:root{--bg:#f4f7fb;--surface:#fff;--text:#111827;--muted:#6b7280;--line:#0f172a1a;--accent:#2563eb;--accent-hover:#1d4ed8;--nav:#0f172a;--danger:#dc2626;--shadow:0 10px 30px #0f172a0f}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}h1{margin:0 0 15px;font-size:24px;line-height:1.2}h2{margin:0 0 13px;font-size:19px}h3{margin:7px 0;font-size:16px}.top{border-bottom:1px solid var(--line);z-index:20;background:#fff;justify-content:space-between;align-items:center;height:66px;padding:0 25px;display:flex;position:sticky;top:0}.brand{letter-spacing:-.5px;font-size:20px;font-weight:850}.brand span{color:var(--accent)}.top-actions,.between,.actions{align-items:center;gap:10px;display:flex}.between{justify-content:space-between}.grid{grid-template-columns:232px minmax(0,1fr);gap:24px;width:min(1480px,100%);min-height:calc(100vh - 66px);margin:auto;padding:24px;display:grid}.nav{color:#e2e8f0;height:fit-content;box-shadow:var(--shadow);background:linear-gradient(#0f172a,#111827 53%,#172554);border-radius:18px;padding:22px 12px;position:sticky;top:90px}.nav-label{letter-spacing:1.5px;color:#94a3b8;margin:2px 0 15px;padding:0 12px;font-size:11px}.nav a{border-radius:12px;align-items:center;gap:12px;margin-bottom:5px;padding:11px 13px;font-weight:600;display:flex}.nav a span{text-align:center;width:23px;font-size:18px;line-height:1}.nav a:hover,.nav a.selected{color:#fff;background:#ffffff21}.workspace{min-width:0}.card{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:18px;padding:22px}.card+.card{margin-top:14px}.btn{border:1px solid var(--line);color:var(--text);cursor:pointer;background:#fff;border-radius:10px;padding:10px 14px;font-weight:650;transition:background 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solid var(--line);padding:18px 0}.creative{background:#fff;border:1px solid #e2e8f0;border-radius:15px;margin-top:12px;padding:18px}.creative-author{margin:12px 0 5px;font-weight:750}.creative-body{white-space:pre-wrap;overflow-wrap:anywhere;margin:10px 0 15px}.creative-gallery{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;display:grid}.image-tile{cursor:zoom-in;aspect-ratio:4/3;background:#f8fafc;border:0;border-radius:9px;padding:0;overflow:hidden}.image-tile img{object-fit:cover;width:100%;height:100%}.campaign-json{white-space:pre-wrap;overflow-wrap:anywhere;background:#f8fafc;border-radius:8px;max-height:270px;padding:13px;overflow:auto}.lightbox{z-index:100;cursor:zoom-out;background:#020617ed;justify-content:center;align-items:center;padding:30px;display:flex;position:fixed;inset:0}.lightbox img{object-fit:contain;max-width:95vw;max-height:85vh}.lightbox-close{z-index:2;position:absolute;top:20px;right:25px}.choices{flex-wrap:wrap;gap:10px;display:flex}.choice{border:1px solid var(--line);cursor:pointer;background:#f8fafc;border-radius:11px;align-items:center;gap:7px;padding:10px;display:flex}.choice:has(input:checked){background:#eff6ff;border-color:#93c5fd}.two-cols{grid-template-columns:minmax(0,1.3fr) minmax(250px,1fr);gap:16px;display:grid}.preview-card{background:#f8fbff;border:1px solid #dbeafe;border-radius:16px;padding:20px}.preview-card p{white-space:pre-wrap;overflow-wrap:anywhere}.media-select{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px;display:grid}.media-select label{gap:5px;display:grid}.media-select img{object-fit:cover;border-radius:8px;width:100%;height:90px}.section-block{margin-bottom:20px}.muted-box{background:#f8fafc;border-radius:10px;padding:12px}@media (max-width:900px){.grid{padding:13px;display:block}.nav{border-radius:13px;gap:3px;margin-bottom:16px;padding:9px;display:flex;position:static;overflow-x:auto}.nav a{white-space:nowrap}.nav-label{display:none}.stats{grid-template-columns:repeat(2,1fr)}.two-cols,.rowedit{grid-template-columns:1fr}.top{padding:0 12px}.top-actions .muted{display:none}}@media (max-width:520px){.form-grid{grid-template-columns:1fr}.card{padding:15px}h1{font-size:21px}.top{height:60px}.grid{padding:10px}}