/* RESET & FONTS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #000;
    color: #fff;
    font-family: 'Rajdhani', sans-serif;
    overflow: hidden; /* Giữ trang không bị cuộn linh tinh */
}

.video-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

#bg-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, transparent 20%, #000000 100%);
    z-index: 1;
}


.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 60px;
    position: relative;
    z-index: 10;
    backdrop-filter: blur(5px);
    border-bottom: 1px solid srgba(255, 255, 255, 0.1);
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: #ff4500;
    letter-spacing: 4px;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li { margin: 0 25px; }

.nav-links a {
    text-decoration: none;
    color: #ccc;
    font-weight: 600;
    transition: 0.3s;
    letter-spacing: 1px;
}

.nav-links a:hover { color: #ff4500; text-shadow: 0 0 10px #ff4500; }

.hero {
    height: 80vh;
    display: flex;
    align-items: center;
    padding-left: 10%;
}

.content-box {
    max-width: 600px;
    z-index: 5;
}

.top-label {
    color: #ff4500;
    letter-spacing: 5px;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 5rem;
    margin-bottom: 20px;
}

.description {
    line-height: 1.6;
    color: #aaa;
    margin-bottom: 30px;
}

/* HIỆU ỨNG NÚT BẤM */
.btn-group { display: flex; gap: 20px; }

button {
    padding: 15px 40px;
    font-family: 'Orbitron', sans-serif;
    font-weight: bold;
    cursor: pointer;
    transition: 0.4s;
    border: none;
}

.btn-primary {
    background: #ff4500;
    color: #fff;
    clip-path: polygon(10% 0, 100% 0, 90% 100%, 0 100%); /* Cắt góc kiểu hầm hố */
}

.btn-primary:hover {
    background: #fff;
    color: #000;
    box-shadow: 0 0 20px #fff;
}

.btn-secondary {
    background: transparent;
    border: 1px solid #fff;
    color: #fff;
}

/* FOOTER */
.footer {
    position: fixed;
    bottom: 20px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 60px;
    font-size: 0.8rem;
    color: #555;
}

.online { color: #00ff00; text-shadow: 0 0 5px #00ff00; }


.glitch {
    position: relative;
    color: white;
}

.glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    opacity: 0.8;
}

.glitch::before {
    color: #ff00ff;
    z-index: -1;
    animation: glitch 0.3s cubic-bezier(.25, .46, .45, .94) both infinite;
}

.glitch::after {
    color: #00ffff;
    z-index: -2;
    animation: glitch 0.3s cubic-bezier(.25, .46, .45, .94) reverse both infinite;
}

@keyframes glitch {
    0% { transform: translate(0); }
    20% { transform: translate(-3px, 3px); }
    40% { transform: translate(-3px, -3px); }
    60% { transform: translate(3px, 3px); }
    80% { transform: translate(3px, -3px); }
    100% { transform: translate(0); }
}
.glitch1 {
    position: relative;
    color: rgb(255, 255, 255);
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    margin-bottom: 20px;
    line-height: 1.6;
    color: #aaa;
    margin-bottom: 10px;
    
}
.hero1 {
    height: 6vh;
    display: flex;
    align-items: center;
    padding-left: 49%;
    height: 179vh;
}
.hero2 {
    height: 6vh;
    display: flex;
    align-items: center;
    padding-left: 50%;
    height: 179vh;
}