/* Base Layout */
.row {
    display: flex;
    flex-wrap: wrap;
    max-width: 1330px;
    margin: 0 auto;
}
.col-inner { 
    padding: 10px; 
}

/* Content Section */
.col.large-9 {
    flex: 1;
    padding-right: 20px;
}
.content-section {
    text-align: left;
}
.content-section h1, 
.content-section h2, 
.content-section h3, 
.content-section h4 {
    color: #2fb925;
    font-size: 20px;
    margin-bottom: 15px;
}
.content-section h1 {
    font-size: 32px;
}
.content-section p {
    color: #FFFFFF;
    margin-bottom: 15px;
}
.content-section ul {
    list-style-type: disc;
    color: #FFFFFF;
}
.content-section ul li {
    margin-bottom: 10px;
}
.scrollable-content {
    max-height: 890px;
    overflow-y: auto;
    color: #FFFFFF;
    text-align: left;
    padding: 10px;
}
.scrollable-content::-webkit-scrollbar {
    width: 8px;
}
.scrollable-content::-webkit-scrollbar-track {
    background: #333;
}
.scrollable-content::-webkit-scrollbar-thumb {
    background: #00FF00;
    border-radius: 4px;
}
.scrollable-content::-webkit-scrollbar-thumb:hover {
    background: #00CC00;
}

/* Table of Contents */
.col.large-3 {
    width: 400px;
    padding-left: 20px;
}
.intro-section {
    position: sticky;
    top: 20px;
    max-height: 890px;
    overflow-y: auto;
}
.intro-title {
    color: #fff;
    background: linear-gradient(142deg, #BB5014 0%, #8B0000 100%);
    padding: 10px;
    text-align: center;
    font-weight: bold;
    border-radius: 6px;
    text-transform: uppercase;
    max-width: calc(100% - 20px);
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 10px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font: 24px;
}
.intro-title i {
    display: none;
    transition: transform 0.3s ease;
}
.intro-section h3 {
    color: #00FF00;
    font-size: 20px;
    margin-bottom: 15px;
}
.intro-section ul {
    list-style-type: none;
    padding: 0;
}
.intro-section ul li {
    margin-bottom: 10px;
}
.intro-section ul li a {
    color: #FFFFFF;
    text-decoration: none;
    font-size: 16px;
}
.intro-section ul li a:hover {
    color: #00FF00;
}
.intro-section::-webkit-scrollbar {
    width: 8px;
}
.intro-section::-webkit-scrollbar-track {
    background: #333;
}
.intro-section::-webkit-scrollbar-thumb {
    background: #00FF00;
    border-radius: 4px;
}
.intro-section::-webkit-scrollbar-thumb:hover {
    background: #00CC00;
}
.intro-section.active .intro-title i {
    transform: rotate(180deg);
}

/* Responsive Design */
@media (max-width: 768px) {
    .row {
        flex-direction: column;
    }
    .col.large-9, 
    .col.large-3 {
        width: 100%;
        padding: 0;
    }
    .intro-section {
        position: static;
        max-height: none;
        margin-bottom: 20px;
    }
    .intro-title {
        margin-bottom: 10px;
    }
    .intro-title i {
        display: inline-block;
    }
    .intro-section ul {
        display: none;
        padding: 10px;
    }
    .intro-section.active ul {
        display: block;
    }
    .content-section {
        padding-left: 0;
    }
    .scrollable-content {
        max-height: none;
        overflow-y: visible;
    }
}
.intro-section ol ol,.intro-section ol ul,.intro-section ul ol,.intro-section ul ul {
    margin: 0 !important;
}
.intro-section ol li{
    margin-left: 0.5em !important;
}