body {
    background: #f0f2f5;
    color: #1f2937;
    padding: 0;
    max-width: 1920px;
    margin: 0 auto;
    min-height: 100vh;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.1);
}

.hub-header {
    background: white;
    color: #1a202c;
    padding: 0.4rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
}

.hub-logo {
    cursor: pointer;
    display: flex;
    align-items: center;
}

.hub-logo img {
    height: 65px;
    width: auto;
    display: block;
}

.hub-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.hub-nav a {
    color: #4a5568;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.hub-nav a:hover {
    background: #f7fafc;
    color: #3182ce;
    transform: translateY(-1px);
}

.lang-toggle {
    background: white;
    color: #333;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid #e2e8f0;
}

.hub-banner {
    text-align: center;
    padding: 3rem 1rem;
    background: #edf2f7;
    border-bottom: 1px solid #e2e8f0;
}

.hub-banner h2 {
    font-size: 1.0rem;
    font-weight: 500;
    color: #2d3748;
    margin-bottom: 0;
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
    word-break: keep-all;
}

.hub-footer {
    background: white;
    color: #718096;
    padding: 2rem;
    text-align: center;
    border-top: 1px solid #e2e8f0;
    margin-top: 3rem;
}

.hub-footer a {
    color: #3182ce;
    text-decoration: none;
    font-weight: 600;
}

.hub-footer a:hover {
    text-decoration: underline;
}

.copyright {
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.hub-footer img {
    height: 40px;
    margin-bottom: 1rem;
}

.partner-msg {
    color: #4a5568;
    font-size: 0.95rem;
    margin-bottom: 1rem;
    word-break: keep-all;
}

.pin-box {
    background: white;
    max-width: 900px;
    margin: -2rem auto 3rem;
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    border: 1px solid #e2e8f0;
}

.pin-input {
    border: 1px solid #e2e8f0;
    padding: 0.6rem 1rem;
    border-radius: 2rem;
    width: 150px;
    text-align: center;
    font-size: 1.1rem;
}

.go-btn {
    background: #82b54d;
    color: white;
    border: none;
    padding: 0.6rem 2rem;
    border-radius: 2rem;
    font-weight: 700;
    cursor: pointer;
}

.hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 5rem;
    padding: 0 1.5rem;
}

.cat-card {
    background: white;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
}

.cat-header {
    padding: 2rem 1.5rem;
    text-align: center;
    border-bottom: 1px solid #edf2f7;
}

.cat-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    border: 4px solid #f7fafc;
}

.cat-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: #1a202c;
}

.module-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.module-item {
    border-bottom: 1px solid #edf2f7;
    transition: background 0.2s;
}

.module-item:last-child {
    border-bottom: none;
}

.module-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    text-decoration: none;
    color: #4a5568;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
}

.module-item:hover {
    background: #f8fafc;
}

.module-item.active {
    background: #ebf4ff;
    border-left: 4px solid #3182ce;
}

.module-item:not(.active) .module-link {
    color: #cbd5e0 !important;
    cursor: default;
}

.module-icon {
    color: #cbd5e0;
    font-size: 1.2rem;
}

.status-text {
    text-align: center;
    color: #718096;
    font-size: 0.9rem;
    margin-top: 1rem;
}

.status-text a {
    color: #3182ce;
    text-decoration: underline;
}