/* Ogólne  tło */
body {
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background: linear-gradient(135deg, #e6f2f9, #f9fdfd);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;

    background-image: url(tlo.JPG);
    background-repeat: no-repeat;
    background-size: cover;
}

/* Kontener logowania */
.login-container {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem 3rem;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(0, 50, 100, 0.2);
    width: 350px;
    text-align: center;
    backdrop-filter: blur(5px);
}

/* Nagłówek */
.login-header {
    margin-bottom: 1.5rem;
    color: #006699;
}

.login-header i {
    font-size: 40px;
    color: #0099cc;
    margin-bottom: 0.5rem;
}

.login-header h1 {
    font-size: 1.4rem;
    margin: 0;
}

/* Formularz */
.login-form .input-group {
    display: flex;
    align-items: center;
    background: #f1f9fc;
    border: 1px solid #cce6f3;
    border-radius: 8px;
    margin-bottom: 1rem;
    padding: 0.6rem;
}

.login-form .input-group i {
    color: #0099cc;
    margin-right: 0.5rem;
}

.login-form input {
    border: none;
    outline: none;
    background: transparent;
    flex: 1;
    font-size: 1rem;
    color: #00334d;
}

/* Przycisk */
.login-btn {
    background: #0099cc;
    color: white;
    font-size: 1rem;
    padding: 0.7rem 1.2rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
    width: 100%;
}

.login-btn:hover {
    background: #007799;
}

/* Błąd */
.error {
    color: #cc0000;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}