* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
}

body {
    background: #f5f7fb;
    color: #1f2937;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

.topbar {
    background: linear-gradient(90deg, #1e3a8a, #2563eb);
    color: white;
    padding: 14px 0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    font-size: 20px;
}

nav a {
    color: white;
    margin: 0 12px;
    text-decoration: none;
    font-weight: 500;
}

.hero {
    background: linear-gradient(120deg, #2563eb, #60a5fa);
    color: white;
    padding: 60px 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero img {
    width: 40%;
    max-width: 420px;
}

.section {
    margin: 50px auto;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 20px;
}

.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: 0.2s;
}

.card:hover {
    transform: translateY(-4px);
}

.card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.card-content {
    padding: 16px;
}

.btn {
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    background: #e5e7eb;
    cursor: pointer;
    font-weight: 500;
}

.btn.primary {
    background: #2563eb;
    color: white;
}

.highlight-section {
    background: #eef2ff;
    padding: 40px 0;
}

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.highlight {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.highlight img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.highlight div {
    padding: 16px;
}

.videos {
    padding: 50px 0;
    background: linear-gradient(90deg, #1e3a8a, #2563eb);
    color: white;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.video-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
}

.video-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    opacity: 0.85;
}

.video-card span {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 40px;
}

.newsletter {
    padding: 40px 0;
    background: #1e40af;
    color: white;
    text-align: center;
}

.newsletter input {
    padding: 10px;
    border-radius: 6px;
    border: none;
    width: 220px;
    margin-right: 10px;
}

footer {
    background: #111827;
    color: #9ca3af;
    padding: 20px 0;
    font-size: 14px;
}

.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}