body {

    margin: 0;
    padding: 0;

    background:
        radial-gradient(circle at top left, rgba(0,191,255,0.15), transparent 35%),
        radial-gradient(circle at bottom right, rgba(0,255,170,0.10), transparent 35%),
        #070b11;

    min-height: 100vh;

    font-family: Arial, Helvetica, sans-serif;

    overflow: hidden;
}

.login-container {

    min-height: 100vh;

    display: flex;

    justify-content: center;
    align-items: center;

    padding: 20px;
}

.login-card {

    width: 100%;
    max-width: 420px;

    background: rgba(15, 20, 28, 0.95);

    border: 1px solid rgba(0,191,255,0.18);

    border-radius: 24px;

    padding: 45px;

    backdrop-filter: blur(18px);

    box-shadow:
        0 0 50px rgba(0,191,255,0.10),
        0 0 120px rgba(0,0,0,0.60);
}

.logo-title {

    font-size: 42px;

    font-weight: bold;

    color: #ffffff;

    margin-bottom: 5px;
}

.logo-subtitle {

    color: #00bfff;

    font-size: 14px;

    margin-bottom: 35px;
}

.form-control {

    background: #0d131b !important;

    border: 1px solid #1d2c3b !important;

    color: #ffffff !important;

    height: 54px;

    border-radius: 12px;

    margin-bottom: 18px;
}

.form-control:focus {

    border-color: #00bfff !important;

    box-shadow: 0 0 15px rgba(0,191,255,0.25) !important;
}

.btn-login {

    width: 100%;

    height: 54px;

    border: none;

    border-radius: 12px;

    background: linear-gradient(90deg, #00bfff, #00ffaa);

    color: #071018;

    font-weight: bold;

    transition: 0.3s;
}

.btn-login:hover {

    transform: translateY(-2px);

    box-shadow: 0 0 25px rgba(0,191,255,0.35);
}

.login-footer {

    margin-top: 25px;

    text-align: center;

    color: #5e738b;

    font-size: 13px;
}

.alert-login {

    background: rgba(255,0,0,0.12);

    border: 1px solid rgba(255,0,0,0.25);

    color: #ff8080;

    padding: 14px;

    border-radius: 12px;

    margin-bottom: 20px;
}