* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

ul {
    list-style: none;
}

/* Breadcrumb */
.breadcrumb-wrapper {
    background: #fff;
    padding: 25px 0;
}

.breadcrumb {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.breadcrumb ul {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb li:not(:last-child)::after {
    content: '';
    width: 8px;
    height: 12px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 12'%3E%3Cpath fill='%23999' d='M2 0L0 2l4 4-4 4 2 2 6-6z'/%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
}

.breadcrumb a {
    color: #666;
    font-size: 14px;
    text-decoration: underline;
}

.breadcrumb a:hover {
    color: #303360;
}

/* Main Content Area */
.content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 60px;
    display: flex;
    gap: 80px;
}

/* Sidebar */
.sidebar {
    width: 260px;
    flex-shrink: 0;
    padding-top: 10px;
}

.sidebar-title {
    color: #303360;
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 20px;
}

.sidebar-nav li {
    border-bottom: 1px solid #e5e5e5;
}

.sidebar-nav li:first-child {
    border-top: 1px solid #e5e5e5;
}

.sidebar-nav a {
    display: flex;
    align-items: flex-start;
    padding: 14px 0;
    color: #666;
    font-size: 14px;
    line-height: 1.5;
    transition: color 0.3s;
}

.sidebar-nav a::before {
    content: '•';
    color: #303360;
    font-size: 20px;
    margin-right: 10px;
    line-height: 1;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    color: #303360;
}

/* Main Content */
.main-section {
    flex: 1;
    min-width: 0;
    padding-top: 10px;
}

.main-section p {
    margin-bottom: 20px;
    color: #444;
    line-height: 1.7;
}

.main-section>ul {
    margin-bottom: 30px;
    padding-left: 0;
}

.main-section>ul>li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 8px;
    color: #444;
    line-height: 1.6;
}

.main-section>ul>li::before {
    content: '•';
    position: absolute;
    left: 8px;
    color: #303360;
    font-size: 18px;
}

.main-section strong {
    font-weight: 600;
}

/* Mobile Sub Nav (hidden on desktop) */
.mobile-sub-nav {
    display: none;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #e5e5e5;
}

.mobile-sub-nav h4 {
    color: #333;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
}

.mobile-sub-nav p {
    margin-bottom: 8px !important;
}

.mobile-sub-nav a {
    color: #555;
    font-size: 14px;
    transition: color 0.3s;
}

.mobile-sub-nav a:hover {
    color: #303360;
}

.mobile-sub-nav p.selected a {
    color: #303360;
}

/* Publisher Section */
.publisher {
    background: #f5f5f5;
    padding: 50px 20px;
    text-align: center;
}

.publisher-container {
    max-width: 1000px;
    margin: 0 auto;
}

.publisher h2 {
    font-size: 16px;
    font-weight: 400;
    color: #333;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
}

.publisher h2 span {
    background: #f5f5f5;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.publisher h2::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -100px;
    right: -100px;
    height: 1px;
    background: #ccc;
}

.publisher-logo {
    margin-bottom: 35px;
}

.publisher-logo img {
    height: 55px;
    width: auto;
}

.subpublishers {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 35px;
    flex-wrap: wrap;
}

.subpublishers img {
    height: 35px;
    width: auto;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.subpublishers a:hover img {
    opacity: 1;
}

/* Footer */
.subfooter {
    background: #3a3a3a;
    color: #aaa;
    padding: 35px 20px;
    text-align: center;
    font-size: 13px;
    line-height: 1.9;
}

.subfooter p:first-child {
    color: #fff;
    font-weight: 600;
    margin-bottom: 3px;
    font-size: 14px;
}

.subfooter a {
    color: #303360;
    transition: color 0.3s;
}

.subfooter a:hover {
    color: #fff;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    display: block;
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    z-index: 2000;
    overflow-y: auto;
    padding: 20px;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 24px;
    height: 24px;
    cursor: pointer;
}

.mobile-nav-list {
    margin-top: 60px;
}

.mobile-nav-list>li {
    border-bottom: 1px solid #eee;
}

.mobile-nav-list>li>a {
    display: block;
    padding: 15px 0;
    font-weight: 600;
    font-size: 16px;
    color: #333;
}

.mobile-nav-list .sub-menu {
    padding-left: 20px;
    padding-bottom: 15px;
}

.mobile-nav-list .sub-menu a {
    display: block;
    padding: 8px 0;
    font-size: 14px;
    color: #666;
}

/* Responsive */
@media (max-width: 1024px) {
    .content-wrapper {
        flex-direction: column;
        gap: 40px;
    }

    .sidebar {
        width: 100%;
        display: none;
    }

    .mobile-sub-nav {
        display: block;
    }

    .submission-btn-nav {
        display: none;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 15px 20px;
    }

    .nav-wrapper {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .header-center {
        display: none;
    }

    .jumbo {
        padding: 50px 20px;
    }

    .jumbo h1 {
        font-size: 28px;
    }

    .logo-text {
        font-size: 18px;
    }

    .logo-icon span {
        width: 6px;
        height: 32px;
    }

    .content-wrapper {
        padding: 30px 15px 40px;
    }

    .publisher h2::before {
        left: -50px;
        right: -50px;
    }

    .subpublishers {
        gap: 20px;
    }

    .subpublishers img {
        height: 28px;
    }
}