*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #6366f1;--primary-dark: #4f46e5;--secondary: #10b981;--danger: #ef4444;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-500: #6b7280;--gray-700: #374151;--gray-900: #111827;--white: #ffffff;--shadow: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--radius: 8px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;line-height:1.6;color:var(--gray-900);background:var(--gray-50)}.container{max-width:1200px;margin:0 auto;padding:0 20px}.app{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--white);box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center;padding:16px 20px}.logo{font-size:1.5rem;font-weight:700;color:var(--primary);text-decoration:none}.nav{display:flex;align-items:center;gap:24px}.nav a{color:var(--gray-700);text-decoration:none;font-weight:500;transition:color .2s}.nav a:hover{color:var(--primary)}.cart-link{position:relative}.cart-badge{position:absolute;top:-8px;right:-12px;background:var(--danger);color:var(--white);font-size:12px;padding:2px 6px;border-radius:10px;font-weight:600}.user-name{color:var(--gray-500);font-size:14px}.main{flex:1;padding:40px 0}.footer{background:var(--gray-900);color:var(--gray-300);padding:24px 0;text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:var(--radius);font-weight:600;font-size:14px;cursor:pointer;transition:all .2s;border:none;text-decoration:none}.btn-primary{background:var(--primary);color:var(--white)}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:var(--secondary);color:var(--white)}.btn-outline{background:transparent;border:1px solid var(--gray-300);color:var(--gray-700)}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}.btn-danger{background:var(--danger);color:var(--white)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-lg{padding:14px 28px;font-size:16px}.btn-sm{padding:6px 12px;font-size:13px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:6px;font-weight:500;color:var(--gray-700)}.form-group input,.form-group select{width:100%;padding:12px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:16px;transition:border-color .2s}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary)}.card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.hero{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:var(--white);padding:80px 0;text-align:center}.hero h1{font-size:3rem;margin-bottom:16px}.hero p{font-size:1.25rem;opacity:.9;margin-bottom:32px}.events-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}.event-card{transition:transform .2s,box-shadow .2s}.event-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.event-card img{width:100%;height:200px;object-fit:cover}.event-card-content{padding:20px}.event-card h3{font-size:1.25rem;margin-bottom:8px;color:var(--gray-900)}.event-card .category{display:inline-block;background:var(--gray-100);color:var(--gray-700);padding:4px 10px;border-radius:4px;font-size:12px;font-weight:500;margin-bottom:12px}.event-card .meta{color:var(--gray-500);font-size:14px;margin-bottom:12px}.event-card .price{font-size:1.5rem;font-weight:700;color:var(--primary)}.page-title{font-size:2rem;margin-bottom:32px;color:var(--gray-900)}.auth-page{max-width:400px;margin:0 auto}.auth-card{padding:40px}.auth-card h1{text-align:center;margin-bottom:32px}.auth-card .switch-link{text-align:center;margin-top:24px;color:var(--gray-500)}.auth-card .switch-link a{color:var(--primary)}.error-message{background:#fef2f2;color:var(--danger);padding:12px;border-radius:var(--radius);margin-bottom:20px;font-size:14px}.event-detail{display:grid;grid-template-columns:1fr 400px;gap:40px}.event-detail-image{width:100%;border-radius:var(--radius)}.event-detail-info h1{font-size:2rem;margin-bottom:16px}.event-detail-meta{color:var(--gray-500);margin-bottom:24px}.event-detail-meta p{margin-bottom:8px}.event-detail-description{color:var(--gray-700);margin-bottom:32px;line-height:1.8}.event-detail-sidebar{position:sticky;top:100px}.price-card{padding:24px}.price-card .price{font-size:2rem;font-weight:700;color:var(--primary);margin-bottom:8px}.price-card .availability{color:var(--gray-500);margin-bottom:24px}.quantity-selector{display:flex;align-items:center;gap:16px;margin-bottom:24px}.quantity-selector button{width:36px;height:36px;border-radius:50%;border:1px solid var(--gray-300);background:var(--white);font-size:18px;cursor:pointer}.quantity-selector span{font-size:18px;font-weight:600;min-width:40px;text-align:center}.cart-page{display:grid;grid-template-columns:1fr 350px;gap:40px}.cart-items{display:flex;flex-direction:column;gap:16px}.cart-item{display:flex;gap:20px;padding:20px}.cart-item img{width:120px;height:80px;object-fit:cover;border-radius:var(--radius)}.cart-item-info{flex:1}.cart-item-info h3{margin-bottom:8px}.cart-item-info .meta{color:var(--gray-500);font-size:14px;margin-bottom:12px}.cart-item-actions{display:flex;align-items:center;gap:16px}.cart-item-price{font-size:1.25rem;font-weight:700;color:var(--primary)}.cart-summary{padding:24px;height:fit-content;position:sticky;top:100px}.cart-summary h2{margin-bottom:24px}.cart-summary .row{display:flex;justify-content:space-between;margin-bottom:12px}.cart-summary .total{font-size:1.5rem;font-weight:700;border-top:1px solid var(--gray-200);padding-top:16px;margin-top:16px}.checkout-page{display:grid;grid-template-columns:1fr 350px;gap:40px}.checkout-form{padding:32px}.checkout-form h2{margin-bottom:24px}.checkout-section{margin-bottom:32px}.checkout-section h3{margin-bottom:16px;color:var(--gray-700)}.payment-methods{display:flex;gap:12px;margin-bottom:24px}.payment-method{flex:1;padding:16px;border:2px solid var(--gray-200);border-radius:var(--radius);text-align:center;cursor:pointer;transition:all .2s}.payment-method.active{border-color:var(--primary);background:var(--gray-50)}.orders-list{display:flex;flex-direction:column;gap:16px}.order-card{padding:24px}.order-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--gray-200)}.order-status{padding:4px 12px;border-radius:4px;font-size:14px;font-weight:500}.order-status.confirmed{background:#dcfce7;color:#166534}.order-items{margin-bottom:16px}.order-item{display:flex;justify-content:space-between;padding:8px 0}.confirmation-page{max-width:600px;margin:0 auto;text-align:center}.confirmation-icon{width:80px;height:80px;background:var(--secondary);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:40px;margin:0 auto 24px}.loading{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--gray-500)}.empty-state{text-align:center;padding:60px 20px;color:var(--gray-500)}.empty-state h2{color:var(--gray-700);margin-bottom:12px}.filters{display:flex;gap:16px;margin-bottom:32px;flex-wrap:wrap}.filters input,.filters select{padding:10px 16px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:14px}.filters input{min-width:250px}@media (max-width: 768px){.event-detail,.cart-page,.checkout-page{grid-template-columns:1fr}.hero h1{font-size:2rem}.nav{gap:12px;font-size:14px}.events-grid{grid-template-columns:1fr}}