body {
    background-color: #000;
    color: #fff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.header {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #111;
    text-align: center;
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 999;
    box-sizing: border-box;
    padding: 2rem;
    transition: padding 0.2s ease-out;
}

.header.scrolled {
    padding: 0.4rem;
}

.logo {
    font-weight: bold;
    text-transform: uppercase;
    
    display: flex;
    align-items: center;
    gap: 15px; 
}

.logo .wbn {
    font-size: 2.5rem;
    letter-spacing: 0.1em;
    line-height: 1;
}

.logo .space {
    font-size: 1.5rem;
    font-weight: normal;
}



.content {
    padding: 2rem;
    text-align: center;
    min-height: calc(100vh - 150px);
}

.hamburger-icon {
    position: fixed;
    left: 25px;
    z-index: 1001;
    cursor: pointer;
    top: 35px;
    transition: top 0.2s ease-out;
}

.hamburger-icon.scrolled {
    top: 20px;
}

.hamburger-icon span {
    display: block;
    width: 30px;
    height: 3px;
    margin-bottom: 6px;
    background-color: #fff;
    border-radius: 3px;
    transition: all 0.3s ease-in-out;
    transform-origin: center;
}

.hamburger-icon.open span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}
.hamburger-icon.open span:nth-child(2) {
    opacity: 0;
}
.hamburger-icon.open span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.nav-menu {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    background-color: #111;
    overflow-x: hidden;
    transition: width 0.3s ease-in-out;
    padding-top: 80px;
}

.nav-menu ul {
    list-style: none;
    padding: 0;
}

.nav-menu a {
    padding: 0 20px;
    text-decoration: none;
    font-size: 22px;
    color: #818181;
    transition: color 0.2s;
    opacity: 0;
    display: flex;
    align-items: center;
    min-height: 70px;
}

.nav-menu a:hover {
    color: #f1f1f1;
}

.nav-menu a.unavailable-link:hover {
    color: #555;
    cursor: not-allowed;
}

.nav-menu.open {
    width: 400px;
}

.nav-menu.open a {
    opacity: 1;
    transition: opacity 0.2s ease-in-out;
    transition-delay: 0.3s;
}

.footer {
    background-color: #111;
    color: #888;
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
}



.features-section {
    margin-top: 4rem;
    display: flex;
    justify-content: center;
    padding: 0 2rem;
}

.feature-card {
    position: relative;
    display: block;
    width: 100%;
    max-width: 800px;
    aspect-ratio: 16 / 9;
    border-radius: 15px;
    overflow: hidden;
    text-decoration: none;
    color: #fff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease-out, box-shadow 0.3s ease-out;

    background-image: url('images/kkjs.png');
    background-size: cover;
    background-position: center;
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    transition: background-color 0.3s ease;
}

.feature-card:hover .card-overlay {
    background-color: rgba(0, 0, 0, 0.3);
}

.card-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    text-align: center;
    width: 100%;
}

.card-text p {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
}

.card-text h3 {
    font-size: 2.5rem;
    font-weight: bold;
    margin: 0.5rem 0 0 0;
    text-shadow: 0 2px 10px rgba(0,0,0,0.8);
}