/* ===== RESET / FIX ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* ===== Globalne style kalkulatora ===== */
body {
    font-family: Arial, sans-serif;
    background-color: #eef3f9;
    color: #1f2937;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 480px;
    width: 100%;
    background: #ffffff;
    margin: 30px auto;
    padding: 25px 30px;
    border-radius: 8px;
    box-shadow: 0px 4px 12px rgba(0, 86, 179, 0.15);
    border: 1px solid #d6e2f1;
}

h1 {
    text-align: center;
    color: #0f2a44;
    font-size: 24px;
    margin-bottom: 15px;
    font-weight: bold;
}

label {
    display: block;
    margin-top: 14px;
    font-size: 14px;
    font-weight: 600;
    color: #0f2a44;
}

input,
select {
    width: 100%;
    max-width: 100%;
    padding: 10px 12px;
    margin-top: 6px;
    border: 1px solid #b8cbe3;
    border-radius: 4px;
    font-size: 15px;
    color: #0f2a44;
    background: #f4f8fd;
}

input:focus,
select:focus {
    border-color: #0d6efd;
    outline: none;
}

button {
    width: 100%;
    padding: 13px;
    margin-top: 22px;
    background-color: #0d6efd;
    color: #ffffff;
    border: none;
    font-size: 16px;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #0b5ed7;
}

.wynik {
    margin-top: 20px;
    font-size: 18px;
    text-align: center;
    font-weight: bold;
    color: #0f2a44;
}

.info {
    margin-top: 10px;
    font-size: 12px;
    color: #4b6b8f;
    text-align: center;
}

.klauzula {
    font-size: 11px;
    color: #666666;
    margin-top: 15px;
    text-align: center;
    line-height: 1.3;
}


/* ===== Mobile ===== */
@media (max-width: 520px) {
    .container {
        margin: 15px;
        padding: 18px;
    }
}