body {
    min-height: 100vh;
    background: linear-gradient(180deg,#0b1420 0%,#0f1f34 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 16px;
}

/* wrapper */

.auth-wrapper {
    width: 100%;
}

/* card */

.auth-card {
    width: 100%;
    max-width: 520px;
    background: rgba(255,255,255,.06);
    backdrop-filter: blur(18px);
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,.08);
    box-shadow: 0 20px 80px rgba(0,0,0,.6), inset 0 0 30px rgba(255,255,255,.03);
    color: white;
}

/* logo */

.login-logo {
    width: clamp(180px,25vw,300px);
    max-width: 90%;
    opacity: .95;
}

/* inputs */

.form-control {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.08);
    color: white;
    border-radius: 10px;
}

    .form-control::placeholder {
        color: rgba(255,255,255,.45);
    }

    .form-control:focus {
        background: rgba(255,255,255,.08);
        border-color: #2d6cdf;
        box-shadow: 0 0 0 2px rgba(45,108,223,.25);
        color: white;
    }

/* labels */

.form-label {
    color: rgba(255,255,255,.75);
    font-weight: 500;
}

/* alert */

.alert-danger {
    background: rgba(255,80,80,.15);
    border: 1px solid rgba(255,80,80,.35);
    color: white;
}

/* botão */

.btn-primary {
    background: linear-gradient(135deg,#2d6cdf,#3a7dff);
    border: none;
    border-radius: 10px;
    font-weight: 600;
    letter-spacing: .3px;
    transition: .2s ease;
}

    .btn-primary:hover {
        transform: translateY(-1px);
        box-shadow: 0 6px 20px rgba(45,108,223,.45);
    }

/* links */

a {
    color: #5f9bff;
}

    a:hover {
        color: #7fb0ff;
    }

/* MOBILE */

@media (max-width:576px) {
    body {
        padding: 20px 14px;
    }

    .auth-card {
        border-radius: 16px;
    }
}

/* TABLET */

@media (min-width:577px) and (max-width:991px) {
    .auth-card {
        max-width: 540px;
    }
}