:root {
    --primary: #0f2c59;
    --secondary: #176b87;
    --accent: #e85d04;
    --accent-hover: #dc2f02;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --border: #dee2e6;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: var(--dark);
    background-color: #fff;
    line-height: 1.6;
}

/* Header & Navigation */
header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-bar {
    background: var(--primary);
    color: #fff;
    padding: 8px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.top-bar a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    max-width: 1300px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    flex-direction: column;
}

.logo span {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    transition: color 0.2s;
    font-size: 0.95rem;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent);
}

.cta-btn {
    background-color: var(--accent);
    color: #fff !important;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.2s;
    display: inline-block;
}

.cta-btn:hover {
    background-color: var(--accent-hover);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(15, 44, 89, 0.85), rgba(23, 107, 135, 0.85)), url('https://images.unsplash.com/photo-1542013936-69f9eedc6ac2?auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
    color: #fff;
    padding: 90px 5%;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    font-weight: 800;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #e9ecef;
}

/* Containers & Layouts */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.section-title p {
    color: var(--gray);
    font-size: 1.1rem;
}

/* Grid Layouts */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
}

.card h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.card p {
    color: var(--gray);
    margin-bottom: 20px;
}

.card a.read-more {
    color: var(--secondary);
    font-weight: 600;
    text-decoration: none;
}

.card a.read-more:hover {
    color: var(--accent);
}

/* Content Page Layout */
.content-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

@media (max-width: 900px) {
    .content-layout {
        grid-template-columns: 1fr;
    }
    .nav-links {
        display: none; /* simple responsive fallback */
    }
}

.main-article h2 {
    color: var(--primary);
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 1.8rem;
}

.main-article h3 {
    color: var(--secondary);
    margin-top: 25px;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.main-article p {
    margin-bottom: 15px;
    color: var(--dark);
    font-size: 1.05rem;
}

.main-article ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.main-article li {
    margin-bottom: 8px;
    color: var(--dark);
}

/* Sidebar */
.sidebar {
    background: var(--light);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border);
    height: fit-content;
}

.sidebar h3 {
    color: var(--primary);
    margin-bottom: 20px;
    font-size: 1.2rem;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 8px;
}

.sidebar ul {
    list-style: none;
    margin-bottom: 30px;
}

.sidebar ul li {
    margin-bottom: 12px;
}

.sidebar ul li a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    transition: color 0.2s;
}

.sidebar ul li a:hover {
    color: var(--accent);
}

.sidebar-cta {
    background: var(--primary);
    color: #fff;
    padding: 25px;
    text-align: center;
    border-radius: 6px;
}

.sidebar-cta h4 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.sidebar-cta p {
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.sidebar-cta a {
    background: var(--accent);
    color: #fff;
    padding: 10px 15px;
    display: block;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 700;
}

/* Footer */
footer {
    background: var(--dark);
    color: #fff;
    padding: 50px 5% 20px 5%;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto 40px auto;
}

.footer-col h4 {
    color: #fff;
    margin-bottom: 20px;
    font-size: 1.2rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 8px;
}

.footer-col p, .footer-col ul {
    color: #adb5bd;
    font-size: 0.95rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: #adb5bd;
    text-decoration: none;
}

.footer-col ul li a:hover {
    color: #fff;
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    color: #6c757d;
    font-size: 0.9rem;
}