*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #222;
    background: #f5f7fa;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: #0d5ea6;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 18px;
}

/* HEADER */
.site-header {
    background: #0f2940;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 999;
}

.topbar {
    width: 100%;
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 72px;
}

.logo {
    color: #fff;
    font-size: 1.4rem;
    font-weight: bold;
    white-space: nowrap;
}

.logo:hover {
    text-decoration: none;
    color: #fff;
}

.site-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.site-nav ul li a {
    display: block;
    color: #fff;
    padding: 10px 14px;
    border-radius: 6px;
    transition: background 0.2s ease;
}

.site-nav ul li a:hover,
.site-nav ul li a.active {
    background: #1d476d;
    text-decoration: none;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: 0;
    padding: 6px;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background: #fff;
    margin: 5px 0;
    border-radius: 2px;
}

/* PAGE HERO */
.page-hero {
    background: linear-gradient(135deg, #17456b, #0d5ea6);
    color: #fff;
    padding: 20px 0;
}

.page-hero h1 {
    margin: 0 0 10px;
    font-size: 2rem;
    line-height: 1.2;
}

.page-hero p {
    margin: 0;
    max-width: 750px;
    font-size: 1.05rem;
}

/* MAIN LAYOUT */
.page-wrap {
    padding: 30px 0 40px;
}

.content-layout {
    display: flex;
    align-items: flex-start;
    gap: 30px;
}

.main-content {
    flex: 1 1 0;
    min-width: 0;
}

.sidebar {
    width: 320px;
    flex: 0 0 320px;
}

.content-card,
.sidebar-box {
    background: #fff;
    border: 1px solid #d9e1e8;
    border-radius: 10px;
    padding: 22px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    margin-bottom: 24px;
}

.content-card h2,
.sidebar-box h3 {
    margin-top: 0;
    color: #0f2940;
}

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

.sidebar-links li {
    margin-bottom: 10px;
}

.sidebar-links li:last-child {
    margin-bottom: 0;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.btn {
    display: inline-block;
    background: #0d5ea6;
    color: #fff;
    padding: 12px 18px;
    border-radius: 6px;
    font-weight: bold;
    transition: background 0.2s ease;
}

.btn:hover {
    background: #0a4c85;
    color: #fff;
    text-decoration: none;
}

.feature-list {
    margin: 0;
    padding-left: 20px;
}

.feature-list li {
    margin-bottom: 10px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.service-box {
    background: #fff;
    border: 1px solid #d9e1e8;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.service-box h3 {
    margin-top: 0;
    color: #0f2940;
}

/* FOOTER */
.site-footer {
    background: #0f2940;
    color: #fff;
    margin-top: 30px;
}

.footer-inner {
    padding: 20px 18px;
    text-align: center;
}

.footer-inner p {
    margin: 0;
}

/* MOBILE */
@media (max-width: 992px) {
    .content-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        flex: 1 1 auto;
    }

    .service-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .topbar-inner {
        flex-wrap: wrap;
        min-height: auto;
        padding: 12px 0;
    }

    .nav-toggle {
        display: block;
    }

    .site-nav {
        width: 100%;
        display: none;
    }

    .site-nav.open {
        display: block;
    }

    .site-nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        margin-top: 10px;
        background: #123552;
        border-radius: 8px;
        overflow: hidden;
    }

    .site-nav ul li a {
        border-bottom: 1px solid rgba(255,255,255,0.08);
        border-radius: 0;
        padding: 14px 16px;
    }

    .site-nav ul li:last-child a {
        border-bottom: 0;
    }

    .page-hero {
        padding: 5px 0;
    }

    .page-hero h1 {
        font-size: 1.7rem;
    }

    .content-card,
    .sidebar-box,
    .service-box {
        padding: 18px;
    }
}