:root{--color-primary: #4caf50;--color-primary-hover: #43a047;--color-secondary: #795548;--color-success: #66bb6a;--color-warning: #ffa726;--color-danger: #ef5350;--color-info: #42a5f5;--color-bg-body: #f0f2f5;--color-bg-card: #ffffff;--color-bg-subtle: #fafafa;--color-text-main: #212121;--color-text-secondary: #757575;--color-border: #e0e0e0;--header-height: 60px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .12);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--color-bg-body);color:var(--color-text-main);line-height:1.5;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button{cursor:pointer;border:none;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.card{background:var(--color-bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:var(--spacing-md);border:1px solid var(--color-border)}.flex-center{display:flex;align-items:center;justify-content:center}.text-primary{color:var(--color-primary)}.text-secondary{color:var(--color-text-secondary)}.room-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-md)}@keyframes pulse{0%{opacity:1}50%{opacity:.6}to{opacity:1}}@keyframes pulse-custom{0%{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.05)}to{opacity:1;transform:scale(1)}}