* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #1a1a2e;
    color: #e0e0e0;
    font-size: 16px;
    line-height: 1.6;
}


body.light-mode {
    background-color: #f5f5f5;
    color: #222222;
}



header {
    background-color: #16213e;
    padding: 15px 20px;
    border-bottom: 3px solid #f5c518;
}

body.light-mode header {
    background-color: #222;
}


.logo {
    font-size: 28px;
    font-weight: bold;
    color: #f5c518;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 10px;
}

.logo span {
    color: white;
}


nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

nav ul li a {
    display: inline-block;
    padding: 8px 14px;
    color: #e0e0e0;
    text-decoration: none;
    background-color: #0f3460;
    border-radius: 4px;
    font-size: 14px;
    border: 1px solid transparent;
}


nav ul li a:hover {
    background-color: #f5c518;
    color: #1a1a2e;
    border-color: #f5c518;
}


nav ul li a.aktivan {
    background-color: #f5c518;
    color: #1a1a2e;
    font-weight: bold;
}

body.light-mode nav ul li a {
    background-color: #333;
    color: white;
}


#btnDarkMode {
    float: right;
    margin-top: -45px;
    padding: 8px 14px;
    background-color: #f5c518;
    color: #1a1a2e;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
}

#btnDarkMode:hover {
    background-color: #e0b015;
}



main {
    max-width: 900px;
    margin: 30px auto;
    padding: 0 20px;
}


h1 {
    font-size: 32px;
    color: #f5c518;
    margin-bottom: 15px;
    border-bottom: 2px solid #f5c518;
    padding-bottom: 8px;
}

h2 {
    font-size: 22px;
    color: #f5c518;
    margin-top: 25px;
    margin-bottom: 10px;
}

h3 {
    font-size: 18px;
    color: #c0c0c0;
    margin-top: 15px;
    margin-bottom: 8px;
}

body.light-mode h1,
body.light-mode h2 {
    color: #c8a000;
}

body.light-mode h3 {
    color: #555;
}

p {
    margin-bottom: 12px;
}



.sekcija {
    background-color: #16213e;
    padding: 20px;
    border-radius: 6px;
    margin-bottom: 20px;
    border-left: 4px solid #f5c518;
}

body.light-mode .sekcija {
    background-color: #e8e8e8;
    border-left-color: #c8a000;
}


.btnKod {
    padding: 7px 14px;
    background-color: #0f3460;
    color: #f5c518;
    border: 1px solid #f5c518;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    margin-bottom: 8px;
}

.btnKod:hover {
    background-color: #f5c518;
    color: #1a1a2e;
}

.primjer-koda {
    display: none;
    background-color: #0d1117;
    color: #c9d1d9;
    padding: 15px;
    border-radius: 4px;
    font-family: "Courier New", monospace;
    font-size: 14px;
    overflow-x: auto;
    border: 1px solid #30363d;
    white-space: pre;
    margin-bottom: 10px;
}


.primjer-koda .komentar {
    color: #8b949e;
}



table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: 14px;
}

th {
    background-color: #0f3460;
    color: #f5c518;
    padding: 10px;
    text-align: left;
}

td {
    padding: 9px 10px;
    border-bottom: 1px solid #333;
}

tr:nth-child(even) {
    background-color: #1e2a4a;
}

body.light-mode th {
    background-color: #333;
}

body.light-mode tr:nth-child(even) {
    background-color: #ddd;
}



.hero {
    background-color: #16213e;
    padding: 40px 20px;
    text-align: center;
    border-radius: 6px;
    margin-bottom: 25px;
    border: 1px solid #0f3460;
}

.hero h1 {
    font-size: 40px;
    border: none;
}

.hero p {
    font-size: 17px;
    color: #aaa;
    margin: 10px 0 20px;
}

.hero-gumb {
    display: inline-block;
    padding: 12px 25px;
    background-color: #f5c518;
    color: #1a1a2e;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    font-size: 16px;
    margin: 5px;
}

.hero-gumb:hover {
    background-color: #e0b015;
}

.kartice {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 10px;
}

.kartica {
    background-color: #16213e;
    padding: 18px;
    border-radius: 6px;
    border-top: 3px solid #f5c518;
    flex: 1 1 200px;
    text-decoration: none;
    color: inherit;
}

.kartica:hover {
    background-color: #1e2a4a;
}

.kartica h3 {
    color: #f5c518;
    margin-bottom: 6px;
}

.kartica p {
    font-size: 13px;
    color: #aaa;
}



.kviz {
    background-color: #16213e;
    padding: 20px;
    border-radius: 6px;
    border-left: 4px solid #f5c518;
}

.kviz-pitanje {
    margin-bottom: 18px;
}

.kviz-pitanje p {
    font-weight: bold;
    margin-bottom: 8px;
}

.kviz-pitanje label {
    display: block;
    margin-bottom: 5px;
    cursor: pointer;
}

.kviz-pitanje input[type="radio"] {
    margin-right: 8px;
}

#btnKviz {
    padding: 10px 20px;
    background-color: #f5c518;
    color: #1a1a2e;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 15px;
    font-weight: bold;
}

#btnKviz:hover {
    background-color: #e0b015;
}

#rezultatKviza {
    margin-top: 15px;
    padding: 12px;
    border-radius: 4px;
    display: none;
    font-weight: bold;
}

.rezultat-dobar {
    background-color: #1a4a1a;
    color: #4caf50;
    border: 1px solid #4caf50;
}

.rezultat-los {
    background-color: #4a1a1a;
    color: #f44336;
    border: 1px solid #f44336;
}



.kalkulator {
    background-color: #0d1117;
    padding: 20px;
    border-radius: 6px;
    max-width: 300px;
    border: 1px solid #333;
}

.kalkulator input {
    width: 100%;
    padding: 8px;
    margin-bottom: 8px;
    background-color: #1e2a4a;
    color: white;
    border: 1px solid #444;
    border-radius: 4px;
    font-size: 15px;
}

.kalkulator select {
    width: 100%;
    padding: 8px;
    margin-bottom: 8px;
    background-color: #1e2a4a;
    color: white;
    border: 1px solid #444;
    border-radius: 4px;
    font-size: 15px;
}

.kalkulator button {
    width: 100%;
    padding: 9px;
    background-color: #f5c518;
    color: #1a1a2e;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    font-size: 15px;
}

.kalkulator button:hover {
    background-color: #e0b015;
}

#rezultatKalk {
    margin-top: 10px;
    padding: 10px;
    background-color: #1e2a4a;
    border-radius: 4px;
    font-size: 17px;
    text-align: center;
    min-height: 40px;
}



#domBox {
    background-color: #0d1117;
    padding: 15px;
    border-radius: 6px;
    margin-top: 10px;
    min-height: 60px;
    border: 1px dashed #444;
}

#domVnos {
    padding: 8px;
    background-color: #1e2a4a;
    color: white;
    border: 1px solid #444;
    border-radius: 4px;
    font-size: 14px;
    width: 100%;
    max-width: 300px;
    margin-bottom: 8px;
}

.dom-gumbi {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.dom-gumbi button {
    padding: 8px 14px;
    background-color: #0f3460;
    color: #f5c518;
    border: 1px solid #f5c518;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}

.dom-gumbi button:hover {
    background-color: #f5c518;
    color: #1a1a2e;
}



.forma-group {
    margin-bottom: 14px;
}

.forma-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
    color: #aaa;
}

.forma-group input,
.forma-group textarea {
    width: 100%;
    max-width: 500px;
    padding: 9px;
    background-color: #1e2a4a;
    color: white;
    border: 1px solid #444;
    border-radius: 4px;
    font-size: 14px;
    font-family: Arial, sans-serif;
}

.forma-group textarea {
    height: 100px;
    resize: vertical;
}

body.light-mode .forma-group input,
body.light-mode .forma-group textarea {
    background-color: white;
    color: #222;
}

.btn-posalji {
    padding: 10px 22px;
    background-color: #f5c518;
    color: #1a1a2e;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    font-size: 15px;
}

.btn-posalji:hover {
    background-color: #e0b015;
}

#porukaKontakt {
    margin-top: 12px;
    padding: 10px;
    background-color: #1a4a1a;
    color: #4caf50;
    border-radius: 4px;
    display: none;
}



footer {
    text-align: center;
    padding: 20px;
    background-color: #16213e;
    color: #777;
    font-size: 13px;
    margin-top: 40px;
    border-top: 2px solid #f5c518;
}

body.light-mode footer {
    background-color: #333;
    color: #aaa;
}



@media (max-width: 600px) {
    h1 {
        font-size: 24px;
    }

    .hero h1 {
        font-size: 28px;
    }

    nav ul {
        flex-direction: column;
    }

    nav ul li a {
        display: block;
    }

    #btnDarkMode {
        float: none;
        margin-top: 10px;
        display: block;
    }

    .kartice {
        flex-direction: column;
    }
}