body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, 
        #2c2c2c 0%,
        #2c2c2c 25%,
        #d4af37 35%,
        #ffd700 50%,
        #d4af37 65%,
        #2c2c2c 75%,
        #2c2c2c 100%
    );
    background-size: 600% 600%;
    animation: gradientBG 12s ease infinite;
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.login-container {
    background: linear-gradient(145deg, rgba(108, 108, 108, 0.6), rgba(255, 255, 255, 0.6));
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(30px);
    opacity: 0;
    transform: translateY(-100px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    position: relative;
    z-index: 2;
    width: 400px;
}

.login-container.show {
    opacity: 0.85;
    transform: translateY(0);
}

h2 {
    margin-bottom: 30px;
    font-size: 28px;
    text-align: center;
    color: #333;
}

input[type="text"], input[type="password"] {
    background-color: rgba(255, 255, 255, 0.8);
    width: 100%;
    padding: 12px;
    margin: 12px 0;
    border: 1px solid rgba(204, 204, 204, 0.5);
    border-radius: 5px;
    font-size: 16px;
}

.checkbox-container {
    display: flex;
    justify-content: space-between;
    margin: 10px 0;
}

button {
    background-color: rgba(76, 175, 80, 0.9);
    width: 100%;
    padding: 12px;
    margin-top: 20px;
    font-size: 16px;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: rgba(69, 160, 73, 0.9);
}

.title {
    position: absolute;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
    font-size: 60px;
    font-weight: bold;
    text-transform: uppercase;
    background: linear-gradient(90deg,
        #2c2c2c 0%,
        #d4af37 25%,
        #ffd700 50%,
        #d4af37 75%,
        #2c2c2c 100%
    );
    background-size: 200% auto;
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    animation: shine 8s linear infinite;
    text-shadow: 0 0 10px rgba(0,0,0,0.2);
    letter-spacing: 4px;
}

@keyframes shine {
    0% {
        background-position: 0% center;
    }
    100% {
        background-position: 200% center;
    }
}