a {
text-decoration: none;
}
.input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}
.input-footer-left {
    display: flex;
    gap: 8px;
    align-items: center;
}
#visionUploadContainer {
    display: inline-flex;
}
.vision-upload-btn {
    white-space: nowrap;
}
.vision-upload-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    text-align: center;
}

.features-section h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-color);
}

.features-section .subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 30px;
    transition: all 0.3s;
    text-align: left;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--primary-color);
    font-size: 24px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-color);
}

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Large Feature Card */
.feature-card-large {
    grid-column: span 2;
}

@media (max-width: 900px) {
    .feature-card-large {
        grid-column: span 1;
    }
}

/* Demo Section */
.demo-section {
    padding: 80px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.demo-section h2 {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--text-color);
}

.demo-section .subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.demo-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.demo-tab {
    padding: 10px 24px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.demo-tab.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.demo-preview {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
    min-height: 500px;
}

.demo-content {
    display: none;
}

.demo-content.active {
    display: block;
}

.demo-preview img {
    width: 100%;
    display: block;
}

.demo-placeholder {
    padding: 100px;
    text-align: center;
    color: var(--text-secondary);
}

.demo-placeholder i {
    font-size: 64px;
    margin-bottom: 20px;
    display: block;
}


/* Use Cases Section */
.use-cases-section {
    padding: 80px 0;
}

.use-cases-section h2 {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--text-color);
}

.use-cases-section .subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 60px;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.use-case-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s;
}

.use-case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.use-case-icon {
    width: 70px;
    height: 70px;
    background: var(--bg-tertiary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--primary-color);
    font-size: 28px;
}

.use-case-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-color);
}

.use-case-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Pricing Section */
.pricing-section {
    padding: 80px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.pricing-section h2 {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--text-color);
}

.pricing-section .subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 60px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 30px;
    position: relative;
    transition: all 0.3s;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.pricing-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-color);
    text-align: center;
}

.pricing-card .plan-desc {
    font-size: 14px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 24px;
}

.pricing-card .price {
    text-align: center;
    margin-bottom: 30px;
}

.pricing-card .price .amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-color);
}

.pricing-card .price .period {
    font-size: 16px;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--text-color);
}

.pricing-features li i {
    font-size: 16px;
    width: 20px;
}

.pricing-features li.included i {
    color: var(--success-color);
}

.pricing-features li.not-included {
    color: var(--text-secondary);
}

.pricing-features li.not-included i {
    color: var(--danger-color);
}

.pricing-card .btn-primary {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
}

.pricing-card.featured .btn-primary {
    background: white;
    color: var(--primary-color);
}

.pricing-card.featured .btn-primary:hover {
    background: var(--bg-tertiary);
}

/* Project Types Section */
.project-types-section {
    padding: 80px 0;
}

.project-types-section h2 {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--text-color);
}

.project-types-section .subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 60px;
}

.project-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.project-type-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 24px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.project-type-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.project-type-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-color);
    font-size: 24px;
}

.project-type-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    margin: 80px 0 0;
}

.cta-section h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
}

.cta-section p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .btn-primary {
    background: white;
    color: var(--primary-color);
    font-size: 18px;
    padding: 16px 40px;
}

.cta-section .btn-primary:hover {
    background: var(--bg-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .features-section h2,
    .demo-section h2,
    .use-cases-section h2,
    .pricing-section h2,
    .project-types-section h2,
    .cta-section h2 {
        font-size: 32px;
    }

    .features-section .subtitle,
    .demo-section .subtitle,
    .use-cases-section .subtitle,
    .pricing-section .subtitle,
    .project-types-section .subtitle {
        font-size: 16px;
    }

    .cta-section p {
        font-size: 16px;
    }

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

    .demo-tabs {
        flex-wrap: wrap;
    }

    .project-types-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}