body, html {
    height: 100%;
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
}

.landing-container {
    position: relative;
    height: 100vh;
    background: url('image/posyandu.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
}

.overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}
.content {
    position: relative;
    z-index: 2;
    color: #fff;
    text-align: center;
    max-width: 90vw;
}
.content h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5em;
    letter-spacing: 2px;
    text-shadow: 0 4px 16px rgba(0,0,0,0.7);
}
.content p {
    font-size: 1.2rem;
    margin-bottom: 2em;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.login-btn {
    display: inline-block;
    padding: 0.75em 2em;
    background: #00b894;
    color: #fff;
    border-radius: 30px;
    font-size: 1.1rem;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    transition: background 0.3s, transform 0.2s;
}
.login-btn:hover {
    background: #098c6c;
    transform: scale(1.05);
}
@media (max-width: 600px) {
    .content h1 { font-size: 1.5rem; }
    .content p { font-size: 1rem; }
    .login-btn { font-size: 1rem; padding: 0.6em 1.5em; }
}