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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --text-dark: #1f2937;
    --text-medium: #4b5563;
    --text-light: #6b7280;
    --border-color: #e5e7eb;
    --bg-light: #f9fafb;
    --success-color: #10b981;
    --error-color: #ef4444;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h2 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 40px;
    opacity: 0.95;
}

.seminar-details {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.detail-item .label {
    font-size: 0.875rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-item .value {
    font-size: 1.125rem;
    font-weight: 600;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 18px 48px;
    border-radius: 8px;
    font-size: 1.125rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Content Sections */
.content-section {
    padding: 80px 20px;
}

.content-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
    color: var(--text-dark);
}

.intro-text {
    font-size: 1.25rem;
    text-align: center;
    color: var(--text-medium);
    max-width: 800px;
    margin: 0 auto 60px;
    line-height: 1.8;
}

.gray-bg {
    background-color: var(--bg-light);
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.benefit-item {
    text-align: center;
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.benefit-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.benefit-item p {
    color: var(--text-medium);
    line-height: 1.7;
}

.callout-box {
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    padding: 30px;
    border-radius: 8px;
    max-width: 800px;
    margin: 0 auto;
}

.callout-box p {
    font-size: 1.125rem;
    color: var(--text-medium);
    margin: 0;
}

/* Two Column Layout */
.two-column {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 60px;
    margin-top: 40px;
}

.column h3 {
    font-size: 1.375rem;
    margin-bottom: 24px;
    font-weight: 600;
}

.column h3.for-you {
    color: var(--success-color);
}

.column h3.not-for-you {
    color: var(--text-medium);
}

.checklist {
    list-style: none;
    padding: 0;
}

.checklist li {
    padding: 12px 0;
    padding-left: 32px;
    position: relative;
    color: var(--text-medium);
    line-height: 1.7;
}

.checklist li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.25rem;
}

.checklist.negative li:before {
    content: "✗";
    color: var(--text-medium);
}

/* About Section */
.about-section {
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 40px;
    align-items: start;
}

.about-text {
    font-size: 1.125rem;
    color: var(--text-medium);
}

.about-text .greeting {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.about-text p {
    margin-bottom: 20px;
}

.about-text ul {
    margin: 20px 0;
    padding-left: 24px;
}

.about-text ul li {
    margin-bottom: 12px;
    line-height: 1.7;
}

.about-text .credentials {
    font-size: 1rem;
    color: var(--text-light);
    font-style: italic;
}

.about-text .sign-off {
    margin-top: 32px;
    margin-bottom: 8px;
}

.about-text .signature {
    font-weight: 600;
    color: var(--text-dark);
}

.about-image-placeholder {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.about-photo {
    width: 100%;
    max-width: 400px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.stats-box {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 12px;
    display: grid;
    gap: 30px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-medium);
}

/* Registration Section */
.registration-section {
    background: var(--bg-light);
}

.form-container {
    max-width: 700px;
    margin: 0 auto;
}

.registration-form {
    background: white;
    padding: 48px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.checkbox-group {
    margin-bottom: 32px;
}

.checkbox-label {
    display: flex;
    align-items: start;
    cursor: pointer;
    font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
    margin-right: 12px;
    margin-top: 4px;
    width: auto;
}

.seminar-note {
    background: #eff6ff;
    border-left: 4px solid var(--primary-color);
    padding: 16px;
    border-radius: 6px;
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-medium);
}

.seminar-note strong {
    color: var(--primary-color);
}

.submit-button {
    width: 100%;
    background: var(--primary-color);
    color: white;
    padding: 16px 32px;
    border: none;
    border-radius: 8px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    position: relative;
}

.submit-button:hover {
    background: var(--primary-dark);
}

.submit-button:disabled {
    background: var(--text-light);
    cursor: not-allowed;
}

.loader {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-left: 10px;
}

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

.form-message {
    margin-top: 20px;
    padding: 16px;
    border-radius: 6px;
    text-align: center;
    display: none;
}

.form-message.success {
    background: #d1fae5;
    color: #065f46;
    display: block;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
    display: block;
}

.confirmation-message {
    background: white;
    padding: 60px 48px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--success-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin: 0 auto 30px;
}

.confirmation-message h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.confirmation-message p {
    font-size: 1.125rem;
    color: var(--text-medium);
    margin-bottom: 16px;
    line-height: 1.7;
}

.confirmation-footer {
    margin-top: 40px;
    font-style: italic;
}

/* FAQ Section */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.faq-item h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.faq-item p {
    color: var(--text-medium);
    line-height: 1.7;
}

/* Final CTA */
.final-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.final-cta h2 {
    color: white;
    margin-bottom: 20px;
}

.final-cta p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 20px 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
}

.footer-info h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.footer-info p {
    line-height: 1.8;
    opacity: 0.9;
}

.footer-disclaimer {
    display: flex;
    align-items: center;
}

.footer-disclaimer p {
    font-size: 0.875rem;
    opacity: 0.7;
    line-height: 1.7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero h2 {
        font-size: 1.125rem;
    }
    
    .seminar-details {
        gap: 20px;
    }
    
    .content-section {
        padding: 60px 20px;
    }
    
    .content-section h2 {
        font-size: 2rem;
    }
    
    .intro-text {
        font-size: 1.125rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .two-column {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .registration-form {
        padding: 32px 24px;
    }
    
    .confirmation-message {
        padding: 40px 24px;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 20px;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .cta-button {
        padding: 16px 32px;
        font-size: 1rem;
    }
    
    .seminar-details {
        flex-direction: column;
        gap: 15px;
    }
}