html, body {
    height: 100%;
    margin: 0;
    font-family: 'Courier New', monospace;
    background: #131313; /* Hacker-style plain black */
    color: #00ff88;
}

.login-box {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    padding: 40px;
    transform: translate(-50%, -50%);
    background: rgba(0, 255, 136, 0.05);
    box-sizing: border-box;
    box-shadow: 0 15px 25px rgba(0, 255, 136, 0.3);
    border-radius: 10px;
}

.login-box h2 {
    color: #00ff88;
    text-align: center;
}

.user-box {
    position: relative;
}

.user-box input {
    width: 100%;
    padding: 10px 0;
    font-size: 16px;
    color: #00ff88;
    margin-bottom: 30px;
    border: none;
    border-bottom: 1px solid #00ff88;
    outline: none;
    background: transparent;
}

.user-box label {
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    font-size: 16px;
    color: #00ff88;
    pointer-events: none;
    transition: 0.5s;
}

.user-box input:focus ~ label,
.user-box input:valid ~ label {
    top: -20px;
    left: 0;
    color: #00ff88;
    font-size: 12px;
}

/* Glowing Submit Button */
button.glow-button {
    background: none;
    color: #03f484;
    font-size: 16px;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    letter-spacing: 4px;
    text-transform: uppercase;
}

button.glow-button:hover {
    background: #03f484;
    color: #000;
    border-radius: 5px;
    box-shadow: 0 0 5px #03f484, 0 0 25px #03f484, 0 0 50px #03f484, 0 0 100px #03f484;
}

button.glow-button span {
    position: absolute;
    display: block;
}

button.glow-button span:nth-child(1) {
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #03f484);
    animation: btn-anim1 1s linear infinite;
}
@keyframes btn-anim1 {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

button.glow-button span:nth-child(2) {
    top: -100%;
    right: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, transparent, #03f484);
    animation: btn-anim2 1s linear infinite;
    animation-delay: 0.25s;
}
@keyframes btn-anim2 {
    0% { top: -100%; }
    50%, 100% { top: 100%; }
}

button.glow-button span:nth-child(3) {
    bottom: 0;
    right: 100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(270deg, transparent, #03f484);
    animation: btn-anim3 1s linear infinite;
    animation-delay: 0.5s;
}
@keyframes btn-anim3 {
    0% { right: -100%; }
    50%, 100% { right: 100%; }
}

button.glow-button span:nth-child(4) {
    bottom: -100%;
    left: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(360deg, transparent, #03f484);
    animation: btn-anim4 1s linear infinite;
    animation-delay: 0.75s;
}
@keyframes btn-anim4 {
    0% { bottom: -100%; }
    50%, 100% { bottom: 100%; }
}

/* Error Text */
.error {
    color: #ff4040;
    margin-top: 10px;
    text-align: center;
}

/* Social Media Buttons */
.social-icons {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 20px;
}

.social-icons a {
    font-size: 2rem;
    background-color: #18191f;
    color: #fff;
    border-radius: 29px;
    padding: 11px 19px;
    text-decoration: none;
    box-shadow:
        2px 2px 2px #00000080,
        10px 1px 12px #00000080,
        2px 2px 10px #00000080,
        2px 2px 3px #00000080,
        inset 2px 2px 10px #00000080,
        inset 2px 2px 10px #00000080,
        inset 2px 2px 10px #00000080,
        inset 2px 2px 10px #00000080;
    text-shadow:
        0 0 50px #0072ff,
        0 0 100px #0072ff,
        0 0 150px #0072ff,
        0 0 200px #0072ff;
    animation: animate 3s linear infinite;
}

.social-icons a:nth-child(1) { animation-delay: 0.1s; }
.social-icons a:nth-child(2) { animation-delay: 0.3s; }
.social-icons a:nth-child(3) { animation-delay: 0.7s; }

@keyframes animate {
    from { filter: hue-rotate(0deg); }
    to { filter: hue-rotate(360deg); }
}