:root{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;font-weight:400;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-favorite: #ef4444;--color-text: #1f2937;--color-text-light: #6b7280;--color-border: #e5e7eb;--color-bg: #f9fafb;--color-card: #ffffff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;background-color:var(--color-bg);color:var(--color-text);min-height:100vh}#app{width:100%}.container{max-width:1200px;margin:0 auto;padding:24px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;padding-bottom:24px;border-bottom:2px solid var(--color-border);flex-wrap:wrap;gap:16px}h1{font-size:32px;font-weight:700;color:var(--color-text);line-height:1.2}.toggle-btn{padding:12px 24px;background-color:var(--color-primary);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:500;cursor:pointer;transition:all .2s ease}.toggle-btn:hover{background-color:var(--color-primary-hover);transform:translateY(-1px);box-shadow:0 4px 6px #2563eb33}.toggle-btn:active{transform:translateY(0)}.properties-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}.property-card{background-color:var(--color-card);border-radius:12px;overflow:hidden;box-shadow:0 2px 8px #0000001a;transition:all .3s ease;position:relative}.property-card:hover{box-shadow:0 8px 16px #00000026;transform:translateY(-4px)}.property-image{width:100%;height:220px;object-fit:cover}.property-details{padding:16px}.property-price{font-size:24px;font-weight:700;color:var(--color-text);margin-bottom:8px}.property-address{font-size:16px;color:var(--color-text);margin-bottom:12px;line-height:1.5}.property-specs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--color-text-light)}.separator{color:var(--color-border)}.favorite-btn{position:absolute;top:12px;right:12px;width:44px;height:44px;background-color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #00000026;transition:all .2s ease;z-index:10}.favorite-btn:hover{transform:scale(1.1);box-shadow:0 4px 12px #0003}.favorite-btn:active{transform:scale(.95)}.heart-icon{width:24px;height:24px;fill:var(--color-border);transition:fill .2s ease}.favorite-btn.active .heart-icon{fill:var(--color-favorite);animation:heartBeat .3s ease}@keyframes heartBeat{0%,to{transform:scale(1)}50%{transform:scale(1.2)}}.no-properties{text-align:center;padding:64px 24px;font-size:18px;color:var(--color-text-light)}@media (max-width: 768px){.container{padding:16px}header{flex-direction:column;align-items:stretch}h1{font-size:24px;text-align:center}.toggle-btn{width:100%}.properties-grid{grid-template-columns:1fr}}