.login-card {
    max-width: 380px;
    margin: 100px auto;
    padding: 35px;
    border-radius: 14px;
    background: #0f172a;
    color: #fff;
    box-shadow: 0 20px 50px rgba(0,0,0,.35);
    font-family: system-ui;
}

.login-card h2 {
    margin: 0;
    font-size: 24px;
    text-align: center;
}

.subtitle {
    text-align: center;
    font-size: 13px;
    opacity: .7;
    margin-bottom: 25px;
}

.login-card input {
    width: 100%;
    padding: 14px;
    margin-bottom: 15px;
    border-radius: 10px;
    border: none;
    background: #020617;
    color: #fff;
}

.login-card input::placeholder {
    color: #94a3b8;
}

.login-card button {
    width: 100%;
    padding: 14px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(135deg,#6366f1,#22d3ee);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

#login-msg {
    text-align: center;
    margin-bottom: 10px;
}

.error {
    color: #f87171;
}

.loading {
    color: #38bdf8;
}