body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background: linear-gradient(135deg, #e8f5e9, #f1f8e9);
    color: #1b2a1b;
}

/* naslov */
h1 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 20px;
    color: #1b5e20;
}

/* svi kontejneri */
.box {
    background: #ffffff;
    border-radius: 12px;
    padding: 15px;
    margin: 15px 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-left: 6px solid #2e7d32;
}

/* naslovi kategorija */
.box h2 {
    margin: 0 0 10px 0;
    font-size: 20px;
    color: #2e7d32;
}

/* checkbox stavke */
label {
    display: block;
    padding: 6px 8px;
    margin: 3px 0;
    border-radius: 6px;
    transition: 0.2s;
    cursor: pointer;
}

/* hover efekt */
label:hover {
    background: #d2f8d6;
}

/* checkbox */
input[type="checkbox"] {
    margin-right: 8px;
    transform: scale(1.1);
}

/* filter gumbi */
button {
    background: #2e7d32;
    color: white;
    border: none;
    padding: 8px 12px;
    margin: 5px 5px 10px 0;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.2s;
}

button:hover {
    background: #1b5e20;
}

/* input i select */
input[type="text"], select {
    padding: 8px;
    margin: 5px;
    border-radius: 6px;
    border: 1px solid #c8e6c9;
    outline: none;
}

input[type="text"]:focus, select:focus {
    border-color: #2e7d32;
    box-shadow: 0 0 5px rgba(46, 125, 50, 0.3);
}

/* odabrano lista */
#container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    align-items: stretch;
}