body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-family: 'Segoe UI', sans-serif;

    background: url('../images/tbn-bg2.jpg') no-repeat center center fixed;
    background-size: cover;
}

/* Overlay tanpa blur */
body::before {
    content: "";
    position: fixed;
    width: 100%;
    height: 100%;
    background: rgba(5, 15, 20, 0.6);
    z-index: 0;
}

/* Canvas */
#network-canvas {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Content */
.content-box {
    position: relative;
    z-index: 2;
    transform: translateY(-13%);
}

/* Logo */
.logo {
    width: 150px;
    max-width: 90%;

    display: block;
    margin-left: auto;
    margin-right: auto;

   
    animation: float 7s ease-in-out infinite;
}

@media (max-width: 576px) {
    .logo {
        width: 260px;
        transform: translateY(30%); /* 🔻 turunkan logo saja */
    }

    .content-box {
        transform: translateY(-10%);
    }
}

/* Floating */
@keyframes float {
    0%   { transform: translateY(20%); }
    50%  { transform: translateY(calc(20% + 30px)); }
    100% { transform: translateY(20%); }
}

/* Text glow */
h1 {
    text-shadow: 0 0 10px rgba(0,255,200,0.5);
}

p {
    text-shadow: 0 0 5px rgba(0,200,255,0.4);
}

/* CONTACT BUTTON */
.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;

    margin: 8px;
    padding: 10px 20px;

    background: rgba(0, 255, 200, 0.08);
    border: 1px solid rgba(0, 255, 200, 0.4);
    border-radius: 12px;

    color: #00ffc3;
    text-decoration: none;
    font-weight: 500;

    transition: all 0.3s ease;
}

.contact-link:hover {
    background: rgba(0, 255, 200, 0.2);
    color: #ffffff;
    border-color: #00ffc3;
    box-shadow: 0 0 10px rgba(0,255,200,0.5);
}

/* Icon */
.contact-link i {
    font-size: 1.2rem;
}

/* Contact layout */
.contact-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Landscape */
@media (orientation: landscape) {
    .contact-container {
        flex-direction: row;
        justify-content: center;
    }
}