/* Data & Airtime Purchase Forms - Responsive Styles */
.data-airtime-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.data-airtime-container h2 {
    color: #2c3e50;
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
    text-align: center;
    font-weight: 600;
}

.notice.notice-info {
    background-color: #e7f5ff;
    color: #1864ab;
    padding: 1rem;
    border-left: 4px solid #228be6;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #495057;
}

.form-group select,
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group input[type="text"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.form-group select:focus,
.form-group input[type="tel"]:focus,
.form-group input[type="number"]:focus,
.form-group input[type="text"]:focus {
    border-color: #228be6;
    outline: none;
    box-shadow: 0 0 0 3px rgba(34, 139, 230, 0.15);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: #868e96;
}

.button.button-primary {
    background-color: #228be6;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: 100%;
    font-weight: 500;
}

.button.button-primary:hover {
    background-color: #1c7ed6;
}

.response-message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 4px;
    display: none;
}

.response-message.success {
    background-color: #ebfbee;
    color: #2b8a3e;
    border-left: 4px solid #40c057;
    display: block;
}

.response-message.error {
    background-color: #fff5f5;
    color: #c92a2a;
    border-left: 4px solid #fa5252;
    display: block;
}

/* Loading state */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .data-airtime-container {
        padding: 1.5rem;
    }
    
    .data-airtime-container h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .data-airtime-container {
        padding: 1rem;
        border-radius: 0;
        box-shadow: none;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
    
    .form-group select,
    .form-group input[type="tel"],
    .form-group input[type="number"],
    .form-group input[type="text"] {
        padding: 0.625rem;
    }
    
    .button.button-primary {
        padding: 0.625rem;
    }
}

/* Accessibility improvements */
select:focus,
input:focus,
button:focus {
    outline: 2px solid #228be6;
    outline-offset: 2px;
}

/* Disabled state styling */
select:disabled,
input:disabled {
    background-color: #f1f3f5;
    cursor: not-allowed;
}