body {
  font-family: 'Sarabun', sans-serif;
  background: linear-gradient(to bottom, #d4af37, #f5e7c1, #fff8e7);
  background-attachment: fixed;
}
button {
  transition: all 0.3s ease;
}
button:hover {
  transform: scale(1.05);
}

.thai-pattern-overlay {
            background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M50 25C37.5 25 37.5 37.5 25 37.5C12.5 37.5 12.5 25 12.5 25C12.5 12.5 25 12.5 25 12.5C25 12.5 37.5 12.5 37.5 25C37.5 37.5 50 37.5 50 37.5C62.5 37.5 62.5 25 75 25C87.5 25 87.5 37.5 87.5 37.5C87.5 37.5 87.5 50 75 50C62.5 50 62.5 62.5 50 62.5C37.5 62.5 37.5 50 25 50C12.5 50 12.5 62.5 12.5 62.5C12.5 62.5 12.5 75 25 75C37.5 75 37.5 87.5 50 87.5C62.5 87.5 62.5 75 75 75C87.5 75 87.5 87.5 87.5 87.5' stroke='%23d4af37' stroke-width='1' fill='none' opacity='0.15'/%3E%3C/svg%3E");
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            pointer-events: none;
        }

        .royal-container {
            background-color: rgba(255, 255, 255, 0.85);
            border: 2px solid #d4af37;
            box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
            border-radius: 12px;
        }
        
        .royal-button {
            background: linear-gradient(to bottom, #d4af37, #b8860b);
            color: #fff;
            font-weight: 600;
            border: 1px solid #a67c00;
            box-shadow: 0 2px 8px rgba(166, 124, 0, 0.3);
            transition: all 0.3s ease;
        }
        
        .royal-button:hover {
            background: linear-gradient(to bottom, #e5c158, #d4af37);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(166, 124, 0, 0.4);
        }
        
        .royal-input {
            border: 1px solid #d4af37;
            background-color: rgba(255, 255, 255, 0.9);
        }
        
        .royal-input:focus {
            border-color: #b8860b;
            box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
            outline: none;
        }
        
        .signature-box {
            min-height: 150px;
            background-color: rgba(255, 255, 255, 0.9);
            border: 1px solid #d4af37;
        }
        
        .royal-header {
            background: linear-gradient(to bottom, rgba(212, 175, 55, 0.2), rgba(255, 255, 255, 0.9));
            border-bottom: 2px solid #d4af37;
            padding-bottom: 1.5rem;
        }
        
        .royal-emblem {
            max-height: 140px;
            filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
        }
        
        .signature-item {
            border-bottom: 1px solid rgba(212, 175, 55, 0.3);
            background-color: rgba(255, 255, 255, 0.7);
        }
        
        .signature-item:last-child {
            border-bottom: none;
        }