.topbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    z-index: 20;
}

.logo {
    font-size: 22px;
    color: #e0e1dd;
    font-weight: bold;
}

.nav a {
    color: #e0e1dd;
    text-decoration: none;
    margin-left: 20px;
    font-size: 16px;
    transition: 0.2s;
}

.nav a:hover {
    color: #ffffff;
    text-shadow: 0 0 6px #ffffff;
}
.login-box {
    width: 350px;
    margin: 150px auto;
    padding: 30px;
    background: rgba(0,0,0,0.65);
    border-radius: 10px;
    text-align: center;
    color: #e0e1dd;
    z-index: 10;
    position: relative;
}

.login-box input {
    width: 90%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 6px;
    border: none;
    font-size: 16px;
}

.error {
    color: #ff6b6b;
    margin-bottom: 10px;
}





#bg-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.55);
    z-index: -1;
}

body {
    margin: 0;
    padding: 0;
    background: #0d1b2a;
    font-family: Arial, sans-serif;
    color: #e0e1dd;
    text-align: center;
}

.container {
    margin-top: 120px;
}

h1 {
    font-size: 42px;
    margin-bottom: 10px;
    color: #e0e1dd;
}

.subtitle {
    font-size: 18px;
    margin-bottom: 40px;
    color: #778da9;
}

.btn {
    display: inline-block;
    padding: 15px 35px;
    background: #1b263b;
    color: #e0e1dd;
    text-decoration: none;
    font-size: 20px;
    border-radius: 8px;
    transition: 0.2s;
}

.btn:hover {
    background: #415a77;
}

.footer {
    margin-top: 80px;
    font-size: 14px;
    color: #778da9;
}
.container, .footer, h1, .subtitle, .btn {
    position: relative;
    z-index: 10;
}