/* Modern Form Styles */
.modern-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 0;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
    font-size: 1rem;
}

.required {
    color: #e74c3c;
    font-weight: bold;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    box-sizing: border-box;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-input:hover,
.form-textarea:hover {
    border-color: #bdc3c7;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.5;
}

.form-textarea::placeholder {
    color: #95a5a6;
}

/* Invalid state styles */
.form-input:invalid,
.form-textarea:invalid {
    border-color: #e74c3c;
}

.form-input:invalid:focus,
.form-textarea:invalid:focus {
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

/* Submit button container */
.form-submit {
    text-align: center;
    margin-top: 2rem;
}

/* Enhanced button styles */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn:hover {
    background: linear-gradient(135deg, #2980b9, #1f4e79);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(52, 152, 219, 0.3);
}

/* Responsive design */
@media (max-width: 768px) {
    .modern-form {
        max-width: 100%;
        padding: 0 1rem;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
    
    .form-label {
        font-size: 0.9rem;
    }
    
    .form-input,
    .form-textarea {
        padding: 0.65rem 0.85rem;
        font-size: 0.95rem;
    }
    
    .btn {
        padding: 0.65rem 1.5rem;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .form-group {
        margin-bottom: 1rem;
    }
    
    .form-input,
    .form-textarea {
        padding: 0.6rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .btn {
        width: 100%;
        padding: 0.75rem;
        font-size: 1rem;
    }
}

/* Loading state for button */
.btn.loading {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn.loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-left: 10px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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