* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f8fafc;
    background-image: radial-gradient(at 0% 0%, rgba(30, 64, 175, 0.05) 0, transparent 50%), 
                      radial-gradient(at 50% 0%, rgba(139, 92, 246, 0.05) 0, transparent 50%);
    min-height: 100vh;
    color: #1e293b;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(7, 50, 96, 0.95) 0%, rgba(30, 75, 138, 0.95) 100%);
    padding: 4rem 2rem;
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeIn 1s ease;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.35rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 300;
    line-height: 1.6;
}

/* How to Choose Section */
.how-to-choose {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem 3rem;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    animation: fadeInUp 0.6s ease;
}

.choose-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.choose-title {
    font-size: 2rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1rem;
}

.choose-text {
    font-size: 1.1rem;
    color: #4a5568;
    line-height: 1.8;
}

/* Benefits Overview Section */
.benefits-overview {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 3rem;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    animation: fadeInUp 0.8s ease;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-card {
    background: linear-gradient(135deg, #f6f8fb 0%, #e9ecef 100%);
    border-radius: 20px;
    padding: 2rem;
    position: relative;
    transition: all 0.3s ease;
    border-left: 5px solid #667eea;
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.basic-benefit {
    border-left-color: #667eea;
}

.pro-benefit {
    border-left-color: #f093fb;
    background: linear-gradient(135deg, #fef5f9 0%, #f6f8fb 100%);
}

.enterprise-benefit {
    border-left-color: #4facfe;
}

.benefit-popular {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(240, 147, 251, 0.4);
}

.benefit-plan-name {
    font-size: 1.75rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.benefit-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 1.5rem;
}

.pro-benefit .benefit-price {
    color: #f093fb;
}

.enterprise-benefit .benefit-price {
    color: #4facfe;
}

.benefit-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.benefit-list li {
    padding: 0.5rem 0;
    color: #4a5568;
    font-size: 0.95rem;
    line-height: 1.6;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.benefit-list li:last-child {
    border-bottom: none;
}

.benefit-ideal {
    font-size: 0.9rem;
    color: #718096;
    font-style: italic;
    line-height: 1.6;
    padding-top: 1rem;
    border-top: 2px solid rgba(102, 126, 234, 0.2);
}

/* Price Justification */
.price-justification {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 10px;
    border-left: 3px solid #667eea;
}

.price-justification p {
    font-size: 0.85rem;
    color: #4a5568;
    line-height: 1.6;
    margin: 0;
}

.price-justification strong {
    color: #667eea;
    font-weight: 600;
}

.pro .price-justification {
    background: rgba(240, 147, 251, 0.05);
    border-left-color: #f093fb;
}

.pro .price-justification strong {
    color: #f093fb;
}

.enterprise .price-justification {
    background: rgba(79, 172, 254, 0.05);
    border-left-color: #4facfe;
}

.enterprise .price-justification strong {
    color: #4facfe;
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
    padding: 2rem 0;
}

/* Pricing Cards */
.pricing-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, #073260 0%, #408ad9 100%);
}

.pricing-card.basic::before {
    background: linear-gradient(90deg, #073260 0%, #408ad9 100%);
}

.pricing-card.pro::before {
    background: linear-gradient(90deg, #f093fb 0%, #f5576c 100%);
}

.pricing-card.enterprise::before {
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 100%);
}

.pricing-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.25);
}

.pricing-card.featured {
    border: 3px solid #f093fb;
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: translateY(-15px) scale(1.07);
}

/* Popular Badge */
.popular-badge {
    position: absolute;
    top: 20px;
    right: -35px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 0.5rem 3rem;
    font-size: 0.85rem;
    font-weight: 700;
    transform: rotate(45deg);
    box-shadow: 0 4px 15px rgba(240, 147, 251, 0.5);
    letter-spacing: 0.5px;
}

/* Card Header */
.card-header {
    text-align: center;
    margin-bottom: 2rem;
}

.plan-name {
    font-size: 2rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.plan-description {
    font-size: 1rem;
    color: #718096;
    font-weight: 400;
}

/* Price Section */
.price-section {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 1.5rem;
    background: linear-gradient(135deg, #f6f8fb 0%, #e9ecef 100%);
    border-radius: 16px;
}

.price {
    margin-bottom: 0.75rem;
}

.currency {
    font-size: 1.75rem;
    font-weight: 600;
    color: #073260;
    vertical-align: super;
}

.amount {
    font-size: 3.5rem;
    font-weight: 800;
    color: #2d3748;
    margin: 0 0.25rem;
}

.period {
    font-size: 1.1rem;
    color: #718096;
    font-weight: 400;
}

.price.custom .amount {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.students-limit {
    font-size: 1rem;
    color: #a0aec0;
    font-weight: 500;
}

/* Features List */
.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.feature-item:hover {
    background: rgba(102, 126, 234, 0.05);
    transform: translateX(5px);
}

.feature-item.highlight {
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.1) 0%, rgba(245, 87, 108, 0.1) 100%);
    padding: 0.75rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
}

.feature-item.limited {
    color: #e67e22;
}

.check-icon {
    width: 22px;
    height: 22px;
    min-width: 22px;
    color: #48bb78;
    margin-right: 0.75rem;
    margin-top: 2px;
}

.feature-item span {
    color: #4a5568;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* CTA Buttons */
.cta-button {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 700;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.basic-btn {
    background: linear-gradient(135deg, #073260 0%, #408ad9 100%);
    color: white;
}

.basic-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.pro-btn {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.pro-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(240, 147, 251, 0.5);
}

.enterprise-btn {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
}

.enterprise-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.5);
}

/* Comparison Section */
.comparison-section {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 3rem;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    animation: fadeInUp 1s ease;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.table-container {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.comparison-table thead {
    background: linear-gradient(135deg, #f6f8fb 0%, #e9ecef 100%);
}

.comparison-table th {
    padding: 1.25rem;
    text-align: center;
    font-weight: 700;
    color: #2d3748;
    border-bottom: 3px solid #e2e8f0;
}

.feature-column {
    text-align: left !important;
    min-width: 250px;
}

.comparison-table td {
    padding: 1rem 1.25rem;
    text-align: center;
    border-bottom: 1px solid #e2e8f0;
    color: #4a5568;
}

.feature-name {
    font-weight: 600;
    text-align: left !important;
    color: #2d3748;
}

.comparison-table tbody tr:hover {
    background: rgba(102, 126, 234, 0.03);
}

.check {
    color: #48bb78;
    font-size: 1.5rem;
    font-weight: 700;
}

.cross {
    color: #cbd5e0;
    font-size: 1.5rem;
    font-weight: 700;
}

/* Business Model Section */
.business-model {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 3rem;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    animation: fadeInUp 1.2s ease;
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.model-card {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #f6f8fb 0%, #e9ecef 100%);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.model-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.model-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.model-icon svg {
    width: 100%;
    height: 100%;
    color: white;
}

.model-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.75rem;
}

.model-card p {
    color: #718096;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* FAQ Section */
.faq-section {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 3rem;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    animation: fadeInUp 1.4s ease;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.faq-item {
    padding: 1.5rem;
    background: linear-gradient(135deg, #f6f8fb 0%, #e9ecef 100%);
    border-radius: 12px;
    border-left: 4px solid #667eea;
    transition: all 0.3s ease;
}

.faq-item:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.faq-question {
    font-size: 1.1rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.75rem;
}

.faq-answer {
    color: #718096;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Final CTA Section */
.final-cta {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.95) 100%);
    border-radius: 24px;
    padding: 4rem 2rem;
    text-align: center;
    margin-bottom: 3rem;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1.6s ease;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button.primary {
    background: white;
    color: #073260;
    width: auto;
    padding: 1.25rem 3rem;
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

.cta-button.secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
    width: auto;
    padding: 1.25rem 3rem;
}

.cta-button.secondary:hover {
    background: white;
    color: #667eea;
    transform: translateY(-3px);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: white;
    font-size: 0.9rem;
    animation: fadeIn 2s ease;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .pricing-card.featured:hover {
        transform: translateY(-15px) scale(1.02);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .amount {
        font-size: 2.5rem;
    }

    .comparison-section,
    .business-model,
    .faq-section,
    .benefits-overview,
    .how-to-choose {
        padding: 2rem 1.5rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .model-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .cta-content h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-button.primary,
    .cta-button.secondary {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 3rem 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .pricing-card {
        padding: 1.5rem;
    }

    .plan-name {
        font-size: 1.75rem;
    }

    .amount {
        font-size: 2rem;
    }

    .comparison-table {
        font-size: 0.85rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem 0.5rem;
    }
}