:root{--navy:#061d52;--blue:#0b6fe8;--blue2:#2c8cff;--pale:#eef6ff;--line:#d8e4f2;--muted:#6c7890;--bg:#f5f8fc;--ok:#167647;--warn:#a35c00;--danger:#b52f38;--shadow:0 10px 28px rgba(22,50,91,.08)}
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solid}.flash.success{background:#ecfaf2;border-color:#bfe6ce;color:#23683f}.flash.error{background:#fff1f2;border-color:#efc0c4;color:#8b2930}.flash.warning{background:#fff7e9;border-color:#f0d59f;color:#835308}.flash.info{background:#edf6ff;border-color:#c8dff6;color:#235782}.section-title{margin:0 0 14px;color:var(--navy);font-size:17px}.muted{color:var(--muted)}.preview-shell{background:#f1f4f8;border:1px solid #dce4ef;border-radius:14px;padding:18px;overflow:auto}.preview-shell iframe{width:900px;max-width:100%;height:320px;background:#fff;border:0;border-radius:8px}.two-col{display:grid;grid-template-columns:minmax(0,2fr) minmax(300px,1fr);gap:20px}.campaign-thumb{width:180px;max-height:64px;object-fit:contain;background:#f7f9fc;border-radius:6px}.color-row{display:flex;gap:10px}.color-row input[type=color]{width:48px;height:38px;padding:2px;border:1px solid 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13px;border-radius:7px;color:#3d5270}@media(max-width:1100px){.grid.cards{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr}}@media(max-width:760px){.sidebar{position:static;width:100%;min-height:auto}.app{display:block}.main{margin-left:0;width:100%}.topbar{position:static;padding:0 16px}.content{padding:18px 16px}.grid.cards,.form-grid{grid-template-columns:1fr}.brand{padding-bottom:12px}.nav{display:grid;grid-template-columns:1fr 1fr}.nav .sep{display:none}}