:root{--primary-color:#7a6988;--secondary-color:#e8e4eb;--text-color:#333;--background-color:#f9f9f9;--white:#fff;--gray-light:#f4f4f4;--gray-dark:#666;--border-radius:8px;--spacing-unit:1rem}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-color);background-color:var(--background-color);font-family:Helvetica Neue,Arial,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}.container{max-width:800px;padding:0 var(--spacing-unit);margin:0 auto}.admin-container{max-width:1400px;padding:0 var(--spacing-unit);margin:0 auto}.btn{background-color:var(--primary-color);color:var(--white);border-radius:var(--border-radius);cursor:pointer;text-align:center;white-space:nowrap;border:none;padding:.8rem 1.5rem;font-size:1rem;transition:background-color .3s;display:inline-block}.btn:hover{background-color:#c49363}@media (max-width:480px){.btn{padding:.6rem .8rem;font-size:.85rem}}.card{background:var(--white);border-radius:var(--border-radius);margin-bottom:1rem;padding:1.5rem;box-shadow:0 2px 5px #0000000d}header{background:var(--white);margin-bottom:2rem;padding:1rem 0;box-shadow:0 1px 3px #0000001a}header .logo{color:var(--primary-color);font-size:1.5rem;font-weight:700}h1,h2,h3{margin-bottom:1rem}ul{list-style:none}.calendar-wrapper{width:100%}.calendar-grid{background:var(--white);border:1px solid #ddd;border-right:none;grid-template-columns:60px repeat(7,1fr);display:grid}.calendar-row{display:contents}.calendar-header-cell{text-align:center;background-color:var(--gray-light);border-bottom:1px solid #ddd;border-right:1px solid #ddd;padding:.5rem;font-size:.9rem;font-weight:700}.calendar-grid>.calendar-header-cell:nth-child(8){border-right:none}.calendar-time-label{text-align:right;color:var(--gray-dark);border-bottom:1px solid #eee;border-right:1px solid #ddd;justify-content:flex-end;align-items:center;padding:.2rem .5rem;font-size:.8rem;display:flex}.calendar-cell{cursor:pointer;height:40px;color:var(--primary-color);border-bottom:1px solid #eee;border-right:1px solid #eee;justify-content:center;align-items:center;font-size:1.2rem;transition:background-color .2s;display:flex}.calendar-cell:last-child{border-right:none}.calendar-cell:hover{background-color:var(--secondary-color)}.calendar-cell.selected{background-color:var(--primary-color);color:var(--white)}.calendar-cell.unavailable{color:#ccc;cursor:not-allowed;background-color:#f0f0f0}.week-nav{justify-content:space-between;align-items:center;margin-bottom:1rem;display:flex}@media (max-width:600px){.week-nav{grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;display:grid}.week-nav button{white-space:nowrap;width:100%;padding:.5rem .2rem;font-size:.8rem}.week-nav span{white-space:nowrap;text-align:center;font-size:.85rem}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}