.ad-section{margin:2rem 0}.ad-placeholder{background:linear-gradient(135deg,#f8fafc,#f1f5f9);border:2px dashed var(--border-color);border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0 auto;transition:all .3s ease;padding:1rem}.ad-placeholder:hover{border-color:var(--primary-color);background:linear-gradient(135deg,#dbeafe,#e0e7ff)}.ad-banner{max-width:100%;height:120px}.ad-square{width:100%;max-width:300px;height:300px}.ad-sidebar{width:100%;height:250px}.ad-text{font-size:.875rem;color:var(--text-muted);font-weight:500;margin-bottom:.25rem;text-align:center}.ad-subtext{opacity:.8}.ad-subtext,.ad-title{font-size:.75rem;color:var(--text-muted);text-align:center}.ad-title{margin-top:.5rem;margin-bottom:0}@media (max-width:768px){.ad-placeholder{margin:0}.ad-banner{height:100px}.ad-sidebar{height:200px}.ad-square{height:250px}}@media (max-width:480px){.ad-section{margin:1.5rem 0}.ad-banner{height:80px}.ad-sidebar{height:180px}.ad-square{height:200px}.ad-text{font-size:.8125rem}}