.logo-sec {
    padding: 1rem 0;
    margin-bottom: 0.8rem;
    width: 200px;
}

.logo-sec a {
    display: flex;
    align-items: center;
    padding-left: 1.5rem;
}

.logo-sec img {
    height: 45px;
    width: auto;
    object-fit: contain;
}

.subheader {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    width: 100%;
    position: relative;
    z-index: 100;
}

.subheader-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    position: relative;
}

.toggle-btn {
    background: none;
    border: none;
    color: var(--text-main);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    padding: 8px 0;
    font-family: inherit;
}

.arrow-icon {
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    transform: rotate(45deg);
    transition: transform var(--transition-speed) ease;
    margin-top: -4px;
}

.subheader.active .arrow-icon {
    transform: rotate(-135deg);
    margin-top: 4px;
}

.menu-content {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.subheader.active .menu-content {
    max-height: 500px;
    opacity: 1;
    visibility: visible;
    padding: 1rem 1.5rem;
}

.menu-content ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.menu-content ul li a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 1rem;
    display: block;
    padding: 10px 15px;
    border-radius: 6px;
    transition: all var(--transition-speed);
}

.menu-content ul li a:hover {
    background-color: var(--bg-main);
    color: var(--primary-color);
    padding-left: 25px;
}

main section {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    border-radius: 12px;
}

main section p {
    text-align: left;
    max-width: 80ch;
    margin-bottom: 0;
}

main section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

main section a:hover {
    text-decoration: underline;
}