h1.main-heading {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    height: 80px;
    width: 100%;
    text-transform: uppercase;
    font-size: 38px;
    font-weight: 400;
    letter-spacing: 2px;
    background: -webkit-gradient(linear, left top, right top, from(#ffdd00), to(#f36f22));
    background: -webkit-linear-gradient(left, #ffdd00, #f36f22);
    background: -o-linear-gradient(left, #ffdd00, #f36f22);
    background: linear-gradient(to right, #ffdd00, #f36f22);
    color: #fff;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px 24px;
}


.progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: #93c5fd;
    width: 0%;
    z-index: 1000;
}

.section {
    border-left: 6px solid #dbe2f0;
    background: var(--card);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.6s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section h2 {
    font-size: 30px;
    margin-bottom: 20px;
}

.section p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--muted);
}

ul {
    padding-left: 20px;
    margin-top: 16px;
}

li {
    margin-bottom: 10px;
    color: var(--muted);
}

.tech-tags {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tags span {
    background: #f1f5f9;
    color: #334155;
    font-size: 12px;
    padding: 6px 20px;
    border-radius: 999px;
}

.right-section-title {
    margin-bottom: 40px;
    padding: 0px 5px;
}

.right-section-title h2 {
    margin-bottom: 0px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.meta {
    background: #f1f5f9;
    padding: 20px;
    border-radius: 14px;
    font-size: 14px;
    color: #334155;
}

.page {
    max-width: 100%;
    margin: 0 auto;
    padding: 30px;
}

.layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    //gap: 32px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.sidebar {
    border-right: 1px solid #e5e7eb;
    background: #f8fafc;
}

.link-item {
    padding: 18px 20px;
    cursor: pointer;
    border-bottom: 1px solid #e5e7eb;
    transition: background 0.2s;
}

.link-item:hover {
    background: #eef2ff;
}

.link-item.active {
    background: #e0e7ff;
    font-weight: 600;
}

.link-title {
    font-size: 15px;
}

.industry {
    font-size: 12px;
    color: #6b7280;
    margin-top: 4px;
}

.content {
    padding: 0px 0px;
}

.content h2 {
    font-size: 28px;
    margin-bottom: 12px;
}

.meta {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
    color: #6b7280;
    font-size: 14px;
}

.content p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 16px;
}

.pill {
    display: inline-block;
    background: #eef2ff;
    color: #4338ca;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 12px;
    margin-right: 8px;
}

@media (max-width: 900px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        border-right: none;
        border-bottom: 1px solid #e5e7eb;
    }
}