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768px){.checkout-modal{margin:10px;max-width:none}.nfe-buttons,.action-buttons{flex-direction:column}.expense-item{flex-direction:column;align-items:flex-start;gap:5px}}.room-account-container{padding:20px;max-width:1200px;margin:0 auto}.account-header{display:flex;align-items:center;gap:20px;margin-bottom:30px}.btn-back{background:#6c757d;color:#fff;border:none;padding:10px 20px;border-radius:4px;cursor:pointer;font-size:14px;transition:background .3s}.btn-back:hover{background:#5a6268}.account-header h1{margin:0;color:#333;font-size:2rem}.room-info-card{background:white;border-radius:8px;padding:25px;box-shadow:0 2px 10px #0000001a;margin-bottom:25px}.room-details h2{margin:0 0 20px;color:#333;font-size:1.4rem;border-bottom:2px solid #007bff;padding-bottom:10px}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px}.info-item{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid #e9ecef}.info-item 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#007bff;padding-top:20px;margin-bottom:25px}.total-line{display:flex;justify-content:space-between;align-items:center;font-size:1.3rem;font-weight:700}.total-value{color:#007bff;font-size:1.5rem}.action-buttons{display:flex;gap:15px;justify-content:flex-end}.btn-add-item{background:#28a745;color:#fff;border:none;padding:12px 24px;border-radius:4px;cursor:pointer;font-size:14px;font-weight:600;transition:background .3s}.btn-add-item:hover{background:#218838}.btn-checkout{background:#007bff;color:#fff;border:none;padding:12px 24px;border-radius:4px;cursor:pointer;font-size:14px;font-weight:600;transition:background .3s}.btn-checkout:hover{background:#0056b3}.loading,.error{text-align:center;padding:40px;font-size:1.1rem;color:#666}.error{color:#dc3545}@media (max-width: 768px){.room-account-container{padding:15px}.account-header{flex-direction:column;align-items:flex-start;gap:15px}.account-header h1{font-size:1.5rem}.info-grid{grid-template-columns:1fr}.summary-header,.account-item{flex-direction:column;align-items:flex-start;gap:10px}.item-price{align-self:flex-end}.action-buttons{flex-direction:column}.btn-add-item,.btn-checkout{width:100%}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}.container{max-width:1200px;margin:0 auto;padding:20px}.card{background:white;border-radius:8px;box-shadow:0 2px 4px #0000001a;padding:20px;margin-bottom:20px}.btn{padding:10px 20px;border:none;border-radius:5px;cursor:pointer;font-size:14px;transition:background-color .3s}.btn-primary{background-color:#007bff;color:#fff}.btn-primary:hover{background-color:#0056b3}.btn-secondary{background-color:#6c757d;color:#fff}.btn-secondary:hover{background-color:#545b62}.form-group{margin-bottom:15px}.form-label{display:block;margin-bottom:5px;font-weight:500}.form-input{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;font-size:14px}.form-input:focus{outline:none;border-color:#007bff;box-shadow:0 0 0 2px #007bff40}.header{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:20px 0;margin-bottom:30px}.header h1{text-align:center;font-size:2.5rem;margin-bottom:10px}.header p{text-align:center;font-size:1.1rem;opacity:.9}.nav{background:white;padding:15px 0;box-shadow:0 2px 4px #0000001a;margin-bottom:30px}.nav-list{display:flex;justify-content:center;list-style:none;gap:30px}.nav-link{text-decoration:none;color:#333;font-weight:500;padding:10px 15px;border-radius:5px;transition:background-color 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