/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Open Sans', Arial, sans-serif;
    font-size: 14px;
    color: #666;
    line-height: 1.7em;
    font-weight: 500;
    -webkit-font-smoothing: antialiased;
    background-color: #3a3a3a;
    background-image: repeating-linear-gradient(
        90deg,
        #3a3a3a,
        #3a3a3a 3px,
        #404040 3px,
        #404040 6px
    );
}

a {
    color: #253356;
    text-decoration: none;
}

a:hover {
    opacity: 0.7;
}

/* Page Layout - Boxed */
.page-wrapper {
    max-width: 1080px;
    width: 90%;
    margin: 0 auto;
    background-color: #fff;
    box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.2);
}

/* Header */
.site-header {
    background-color: #253356;
    padding: 16px 30px;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.header-logo {
    height: 47px;
    width: auto;
}

/* Banner */
.banner {
    line-height: 0;
}

.banner img {
    width: 100%;
    height: auto;
    display: block;
}

/* Content Area */
.content-area {
    padding: 54px 0;
}

.content-grid {
    display: flex;
    width: 80%;
    max-width: 1080px;
    margin: 0 auto;
    gap: 5.5%;
}

/* Sidebar */
.sidebar {
    flex: 0 0 20.875%;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 0.5em;
}

.sidebar-nav a {
    display: block;
    font-size: 14px;
    line-height: 2em;
    color: rgba(0, 0, 0, 0.6);
    transition: opacity 0.2s ease-in-out;
}

.sidebar-nav a:hover {
    opacity: 0.7;
}

/* Main Content */
.main-content {
    flex: 1;
}

.main-content h1 {
    font-size: 26px;
    color: #333;
    font-weight: 500;
    line-height: 1em;
    padding-bottom: 10px;
    margin-bottom: 10px;
}

.main-content p {
    padding-bottom: 1em;
    line-height: 1.7em;
}

.main-content p:last-child {
    padding-bottom: 0;
}

.main-content a {
    color: #253356;
}

.main-content a:hover {
    opacity: 0.7;
}

/* Footer */
.site-footer {
    background-color: #253356;
    color: rgba(255, 255, 255, 0.8);
    padding: 30px;
    font-size: 14px;
    line-height: 1.7em;
}

/* Responsive */
@media (max-width: 980px) {
    .content-grid {
        flex-direction: column;
        width: 90%;
    }

    .sidebar {
        flex: none;
        width: 100%;
        margin-bottom: 20px;
    }

    .sidebar-nav ul {
        display: flex;
        gap: 20px;
    }

    .content-area {
        padding: 30px 0;
    }
}

@media (max-width: 479px) {
    .page-wrapper {
        width: 100%;
    }

    .content-grid {
        width: 92%;
    }
}