section {
    padding: 5rem 0;
    position: relative;
}

.hero-section {
    padding: 8rem 0 6rem;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,245,255,0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 8s ease-in-out infinite;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,0,110,0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 8s ease-in-out infinite 2s;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.hero-section .container {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero-section h1 {
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 20px rgba(0,245,255,0.3);
}

.hero-section p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-section .cta-button {
    padding: 18px 48px;
    font-size: 1.1rem;
}

.table-of-contents {
    background: var(--dark-surface);
    padding: 3rem 0;
}

.toc-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.toc-list li {
    margin: 0;
}

.toc-list a {
    display: block;
    padding: 1.25rem 1.5rem;
    background: var(--dark-bg);
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.05);
    color: var(--text-secondary);
    transition: all 0.3s ease;
    font-weight: 500;
}

.toc-list a:hover {
    background: var(--dark-surface-light);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateX(8px);
}

.cards-grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-blocks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-block {
    background: var(--dark-surface);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: all 0.3s ease;
}

.feature-block:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,245,255,0.15);
}

.feature-block h5 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.highlight-boxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.highlight-box {
    background: var(--dark-surface);
    padding: 2rem;
    border-radius: 16px;
    border-left: 4px solid var(--primary);
    position: relative;
    overflow: hidden;
}

.highlight-box::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(0,245,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.highlight-box h4 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.accordion-item {
    background: var(--dark-surface);
    border-radius: 12px;
    margin-bottom: 1rem;
    border: 1px solid rgba(255,255,255,0.05);
    overflow: hidden;
    transition: all 0.3s ease;
}

.accordion-item:hover {
    border-color: var(--primary);
}

.accordion-header {
    padding: 1.5rem 2rem;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
    font-size: 1.25rem;
    margin: 0;
}

.accordion-header::after {
    content: '+';
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--primary);
    transition: transform 0.3s ease;
}

.accordion-item.active .accordion-header::after {
    transform: translateY(-50%) rotate(45deg);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.3s ease;
    padding: 0 2rem;
}

.accordion-item.active .accordion-body {
    max-height: 1000px;
    padding: 0 2rem 1.5rem;
}

.cta-section {
    background: var(--gradient-hero);
    text-align: center;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0,245,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-section .cta-button {
    padding: 18px 48px;
    font-size: 1.1rem;
}

@media (max-width: 767px) {
    section {
        padding: 3rem 0;
    }

    .hero-section {
        padding: 5rem 0 3rem;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .hero-section p {
        font-size: 1rem;
    }

    .hero-section .cta-button {
        padding: 14px 32px;
        font-size: 1rem;
        width: 100%;
    }

    .toc-list {
        grid-template-columns: 1fr;
    }

    .cards-grid-3,
    .feature-blocks,
    .highlight-boxes {
        grid-template-columns: 1fr;
    }

    .accordion-header {
        padding: 1.25rem 1.5rem;
        font-size: 1.1rem;
    }

    .accordion-header::after {
        right: 1.5rem;
    }

    .accordion-body {
        padding: 0 1.5rem;
    }

    .accordion-item.active .accordion-body {
        padding: 0 1.5rem 1.25rem;
    }

    .cta-section {
        padding: 4rem 0;
    }

    .cta-section .cta-button {
        width: 100%;
    }

    table {
        font-size: 0.85rem;
    }

    th, td {
        padding: 0.75rem 0.5rem;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .hero-section {
        padding: 6rem 0 4rem;
    }

    .cards-grid-3,
    .feature-blocks {
        grid-template-columns: repeat(2, 1fr);
    }
}