body {
    min-height: 100vh;
    background: linear-gradient(135deg, #1f2937, #2563eb);
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-wrap {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}

.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo h1 {
    font-size: 38px;
    letter-spacing: 3px;
    color: #2563eb;
    font-weight: 800;
}

.logo p {
    margin-top: 6px;
    font-size: 14px;
    color: #6b7280;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    height: 45px;
    border: 1px solid #ccc;
    border-radius: 10px;
    padding: 0 12px;
    font-size: 15px;
}

.form-group input:focus {
    border-color: #2563eb;
    outline: none;
}

.login-btn {
    width: 100%;
    height: 48px;
    margin-top: 10px;
    border: none;
    border-radius: 12px;
    background: #2563eb;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
}

.login-btn:hover {
    background: #1d4ed8;
}

.error {
    background: #fee2e2;
    color: #b91c1c;
    padding: 10px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 15px;
    text-align: center;
}

@media (max-width: 480px) {
    .login-wrap {
        padding: 30px 20px;
    }

    .logo h1 {
        font-size: 32px;
    }
}