.aboutcss-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.aboutcss-main-layout-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 20px;
    align-items: start;
    margin-top: 20px;
    margin-bottom: 20px;
}

.aboutcss-sidebar-nav {
    background-color: var(--card-bg-color, #FFFFFF);
    border: 1px solid var(--border-color, #DDE1E3);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 20px;
    position: sticky;
    top: 20px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
}

.aboutcss-sidebar-title {
    font-size: 1.2em;
    color: var(--text-primary, #0076a3);
    margin-top: 0;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color, #DDE1E3);
    font-weight: 600;
}

.aboutcss-nav-list {
    list-style-type: none;
    padding-left: 0;
    margin: 0;
}

.aboutcss-nav-item {
    margin-bottom: 8px;
}

.aboutcss-nav-link {
    text-decoration: none;
    color: var(--link-color, #0076a3);
    font-weight: 500;
    display: block;
    padding: 10px 15px;
    border-radius: 8px;
    transition: background-color 0.2s ease, color 0.2s ease;
    font-size: 0.95em;
}

.aboutcss-nav-link:hover {
    background-color: var(--menu-hover-bg, #E6F0FA);
    color: var(--hover-link-color, #005F83);
}

.aboutcss-nav-link.active {
    background-color: var(--menu-active-bg, #0076a3);
    color: var(--menu-active-text, #FFFFFF) !important;
    font-weight: 600;
}

.aboutcss-nav-link.active i {
    color: var(--menu-active-text, #FFFFFF) !important;
}

.aboutcss-nav-link i {
    margin-right: 10px;
    width: 18px;
    text-align: center;
    color: var(--text-primary, #0076a3);
    transition: color 0.2s ease;
}

.aboutcss-nav-link:hover i {
    color: var(--hover-link-color, #005F83);
}

.aboutcss-content-area {
    background-color: var(--card-bg-color, #FFFFFF);
    border: 1px solid var(--border-color, #DDE1E3);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 0;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.aboutcss-header {
    text-align: center;
    padding: 25px 20px;
    border-bottom: 1px solid var(--border-color, #DDE1E3);
}

.aboutcss-main-title {
    color: var(--text-primary, #0076a3);
    font-size: 2em;
    margin: 0;
    font-weight: 600;
}

.aboutcss-main-title i {
    margin-right: 10px;
}

.aboutcss-section {
    position: relative;
}

.aboutcss-section:not(:last-child) {
    border-bottom: 1px dashed var(--border-color, #DDE1E3);
}

.aboutcss-section-title-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    min-width: 0;
}

.aboutcss-section-title-wrapper:hover {
    background-color: var(--menu-hover-bg, #E6F0FA);
}

.aboutcss-section-title {
    color: var(--accent-blue, #0076a3);
    font-size: 1.5em;
    margin: 0;
    font-weight: 600;
    flex-grow: 1;
    min-width: 0;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.aboutcss-toggle-icon {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    margin-left: 15px;
    font-size: 0.9em;
    transition: transform 0.3s ease;
}

.aboutcss-section-title-wrapper.active .aboutcss-toggle-icon {
    transform: rotate(45deg);
}

.aboutcss-section-content {
    padding: 0px 25px 20px 25px;
    display: none;
    animation: slideInFromLeft 0.5s ease forwards;
    max-width: 100%;
    box-sizing: border-box;
}

.aboutcss-section-content.active {
    display: block;
}

@keyframes slideInFromLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

.aboutcss-text {
    color: var(--text-secondary, #5A6F7A);
    margin-bottom: 15px;
    font-size: 1em;
    line-height: 1.6;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-all;
    max-width: 100%;
}

.aboutcss-text p {
    margin-bottom: 1em;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-all;
}

.aboutcss-text p:last-child {
    margin-bottom: 0;
}

.aboutcss-section-content img,
.aboutcss-section-content video,
.aboutcss-section-content iframe {
    max-width: 100%;
    height: auto;
    display: block;
    margin-top: 10px;
    margin-bottom: 10px;
}

.aboutcss-list {
    list-style-type: none;
    padding-left: 0;
    color: var(--text-secondary, #5A6F7A);
    margin-top: 10px;
}

.aboutcss-list-item {
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative;
    font-size: 0.95em;
    line-height: 1.5;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-all;
}

.aboutcss-list-item::before {
    content: "\f054";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 3px;
    color: var(--accent-blue, #0076a3);
    font-size: 0.9em;
}

.aboutcss-nested-list {
    margin-top: 8px;
    padding-left: 25px;
    list-style-type: disc;
    font-size: 0.95em;
}

.aboutcss-nested-list li {
    margin-bottom: 5px;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-all;
}

.aboutcss-link {
    color: var(--link-color, #0076a3);
    text-decoration: none;
    font-weight: 600;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-all;
}

.aboutcss-link:hover {
    color: var(--hover-link-color, #005F83);
    text-decoration: underline;
}

.aboutcss-subsection-title {
    font-size: 1.3em;
    color: var(--text-primary, #0076a3);
    margin-top: 25px;
    margin-bottom: 12px;
    font-weight: 600;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-all;
}

.aboutcss-btc-address {
    font-weight: normal;
    margin-top: 10px;
    display: block;
}

.aboutcss-btc-address .aboutcss-address-placeholder {
    font-family: 'Cascadia Code', monospace;
    background-color: var(--bg-color, #f2f2f2);
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 600;
    border: 1px solid var(--border-color, #DDE1E3);
    word-break: break-all;
}

.aboutcss-btc-address .fa-bitcoin {
    color: #f7931a;
    margin-right: 8px;
    font-size: 1.2em;
}

.aboutcss-contact-buttons-container {}

.aboutcss-contact-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-blue, #0076a3);
    color: var(--menu-active-text, #FFFFFF) !important;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.2s ease;
    font-size: 0.95em;
    font-family: 'Cascadia Code', monospace;
    line-height: 1.5;
    border: none;
}

.aboutcss-contact-link:hover {
    background-color: var(--accent-blue-darker, #005F83);
    text-decoration: none;
}

.aboutcss-contact-link i {
    margin-right: 8px;
}

#signatoolsAnnButton {
    background-color: var(--secondary-button-bg, #6c757d);
    color: var(--secondary-button-text, #ffffff);
}