/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 40px;
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo i {
    font-size: 2.5rem;
    color: #667eea;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin: 0;
}

.subtitle {
    font-size: 1.1rem;
    color: #666;
    font-weight: 400;
}

/* Main Content */
.main-content {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

/* Form Sections */
.form-section {
    padding: 30px;
    border-bottom: 1px solid #e1e5e9;
}

.form-section:last-child {
    border-bottom: none;
}

.form-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #667eea;
}

.form-section h2 i {
    color: #667eea;
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

/* Form Groups */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Checkbox Styles */
.checkbox-group {
    margin-top: 20px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
    transform: scale(1.2);
}

/* Terms Container */
.terms-container {
    background: #f8f9fa;
    border: 1px solid #e1e5e9;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    max-height: 400px;
    overflow-y: auto;
}

.terms-content h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.terms-content p {
    margin-bottom: 15px;
    color: #555;
}

.terms-content ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.terms-content li {
    margin-bottom: 5px;
    color: #555;
}

/* Signature Container */
.signature-container {
    background: #f8f9fa;
    border: 1px solid #e1e5e9;
    border-radius: 8px;
    padding: 20px;
}

/* Submit Section */
.submit-container {
    text-align: center;
}

.submit-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.submit-note {
    margin-top: 15px;
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: #fff;
    margin: 10% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: modalSlideIn 0.3s ease-out;
}

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

.modal-header {
    text-align: center;
    padding: 30px 30px 20px;
    border-bottom: 1px solid #e1e5e9;
}

.success-icon {
    font-size: 3rem;
    color: #28a745;
    margin-bottom: 15px;
}

.modal-header h3 {
    color: #333;
    font-size: 1.5rem;
    margin: 0;
}

.modal-body {
    padding: 20px 30px;
    text-align: center;
}

.modal-body p {
    margin-bottom: 10px;
    color: #555;
}

.modal-footer {
    padding: 20px 30px 30px;
    text-align: center;
}

.modal-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.modal-btn:hover {
    background: #5a6fd8;
}

/* Loading Spinner */
.loading-spinner {
    display: none;
    position: fixed;
    z-index: 1001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

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

.loading-spinner p {
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header {
        padding: 20px;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
    
    .form-section {
        padding: 20px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 20% auto;
        width: 95%;
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .logo {
        flex-direction: column;
        gap: 10px;
    }
    
    .logo h1 {
        font-size: 1.8rem;
    }
    
    .form-section h2 {
        font-size: 1.3rem;
    }
    
    .submit-btn {
        padding: 12px 20px;
        font-size: 1rem;
    }
}

/* Form Validation Styles */
.form-group input:invalid,
.form-group select:invalid,
.form-group textarea:invalid {
    border-color: #dc3545;
}

.form-group input:valid,
.form-group select:valid,
.form-group textarea:valid {
    border-color: #28a745;
}

/* Required Field Indicator */
.form-group label[for*="required"]::after,
.form-group label:has(+ input[required])::after,
.form-group label:has(+ select[required])::after,
.form-group label:has(+ textarea[required])::after {
    content: " *";
    color: #dc3545;
    font-weight: bold;
}