* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    height: 100vh;
    background: radial-gradient(circle, #0f172a, #020617);
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
}

#particles {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
}

.login-box {
    position: relative;
    z-index: 1;
    background: #111827;
    padding: 35px;
    border-radius: 20px;
    width: 340px;
    box-shadow: 0 0 40px rgba(124, 58, 237, 0.4);
    text-align: center;
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 15px;
    border: 3px solid #7c3aed;
}

.login-box h2 {
    margin-bottom: 20px;
    color: #a855f7;
}

.input-group {
    position: relative;
    margin-bottom: 15px;
}

.input-group input {
    width: 100%;
    padding: 12px 40px;
    border: none;
    border-radius: 10px;
    background: #020617;
    color: white;
}

.icon-left {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.icon-right {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
}

button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 25px;
    background: linear-gradient(45deg, #7c3aed, #9333ea);
    color: white;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
    transition: 0.3s;
}

button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px #7c3aed;
}

.alert {
    background: #dc2626;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 10px;
    font-size: 14px;
}

.loading {
    display: none;
    margin-top: 10px;
    font-size: 13px;
    color: #aaa;
}

.footer-link {
    margin-top: 15px;
    font-size: 13px;
}

.footer-link a {
    color: #22c55e;
    text-decoration: none;
}