/* OTP Modal Styles */
.otp-modal {
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.otp-modal-content {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    max-width: 450px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.otp-modal-header {
    padding: 20px 25px 15px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.otp-modal-header h3 {
    margin: 0;
    color: #333;
    font-size: 20px;
    font-weight: 600;
}

.otp-close {
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s ease;
}

.otp-close:hover {
    color: #000;
}

.otp-modal-body {
    padding: 25px;
    text-align: center;
}

.otp-modal-body p {
    margin: 0 0 25px;
    color: #666;
    font-size: 16px;
    line-height: 1.5;
}

.otp-input-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 25px;
}

.otp-input {
    width: 40px;
    height: 40px;
    border: 2px solid #ddd;
    border-radius: 6px;
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    transition: all 0.3s ease;
    outline: none;
}

.otp-input:focus {
    border-color: #007cba;
    box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

.otp-input.filled {
    border-color: #28a745;
    background-color: #f8fff9;
}

.otp-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 20px;
}

.otp-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 120px;
}

.otp-btn-primary {
    background-color: #007cba;
    color: white;
}

.otp-btn-primary:hover {
    background-color: #005a87;
    transform: translateY(-1px);
}

.otp-btn-primary:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    transform: none;
}

.otp-btn-secondary {
    background-color: #f8f9fa;
    color: #6c757d;
    border: 1px solid #dee2e6;
}

.otp-btn-secondary:hover {
    background-color: #e9ecef;
    color: #495057;
}

.otp-message {
    font-size: 14px;
    font-weight: 500;
    padding: 10px;
    border-radius: 4px;
    margin-top: 15px;
    min-height: 20px;
}

.otp-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.otp-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Responsive Design */
@media (max-width: 480px) {
    .otp-modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .otp-modal-header,
    .otp-modal-body {
        padding: 20px;
    }
    
    .otp-input {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }
    
    .otp-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    .otp-btn {
        width: 100%;
    }
}

/* Animation for modal appearance */
.otp-modal {
    animation: fadeIn 0.3s ease;
}

.otp-modal-content {
    animation: slideIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading state for buttons */
.otp-btn.loading {
    position: relative;
    color: transparent;
}

.otp-btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}