/* GLOBALNE POSTAVKE – vrijedi za sve elemente */
* {
    box-sizing: border-box; /* Padding i border ulaze u ukupnu širinu/visinu */
}

/* OSNOVNI STIL STRANICE */
body {
    font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; /* Fontovi */
    margin: 0; /* Uklanja defaultni margin */
    padding: 0; /* Uklanja defaultni padding */
    line-height: 1.6; /* Razmak između redaka */
    background-color: #0b0c10; /* Tamna pozadina */
    color: #c5c6c7; /* Svijetlo sivi tekst */
    display: flex; /* Flex layout */
    flex-direction: column; /* Elementi idu vertikalno */
    min-height: 100vh; /* Minimalna visina cijelog ekrana */
}

/* ================= HEADER ================= */
header {
    background-color: #1f2833; /* Tamna pozadina zaglavlja */
    color: #66fcf1; /* Boja teksta */
    padding: 20px 0; /* Unutarnji razmak */
    border-bottom: 2px solid #45a29e; /* Donja linija */
}

/* Kontejner unutar headera */
.header-container {
    width: 90%;
    max-width: 1200px; /* Maksimalna širina */
    margin: 0 auto; /* Centriranje */
    display: flex; /* Flex raspored */
    justify-content: space-between; /* Razmak između elemenata */
    align-items: center; /* Vertikalno poravnanje */
}

/* Link u naslovu */
h1 a {
    color: inherit; /* Nasljeđuje boju */
}

/* Naslov u headeru */
header h1 {
    margin: 0;
    font-size: 1.8rem; /* Veličina teksta */
}

/* Navigacijski linkovi */
header nav a {
    color: #66fcf1;
    margin-left: 25px;
    text-decoration: none; /* Uklanja podcrtavanje */
    font-weight: bold;
    transition: 0.3s; /* Glatka animacija */
}

/* Hover efekt za navigaciju */
header nav a:hover {
    color: #45a29e;
    text-shadow: 0 0 8px rgba(102, 252, 241, 0.5);
}

/* ================= GLAVNI SADRŽAJ ================= */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 40px auto; /* Razmak od vrha i dna */
    flex: 1; /* Ispunjava prostor između headera i footera */
}

/* UVODNI TEKST */
.intro {
    text-align: center; /* Centriran tekst */
    margin-bottom: 40px;
}

.intro h2 {
    font-size: 2.2rem;
    color: #ffffff;
    margin-bottom: 15px;
}

/* ================= BENEFITS KARTICE ================= */
.benefits {
    display: flex;
    gap: 30px; /* Razmak između kartica */
    margin-bottom: 50px;
    flex-wrap: wrap; /* Prelazak u novi red */
}

.benefit-card {
    flex: 1 1 300px; /* Fleksibilna širina */
    background-color: #1f2833;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid #45a29e;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.benefit-card h3 {
    color: #66fcf1;
    margin-bottom: 10px;
}

/* ================= TRANSPORT KARTICE ================= */
.transport-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 25px;
    justify-content: center;
    margin-bottom: 50px;
}

.transport-card {
    width: 220px;
    background-color: #1f2833;
    border-radius: 14px;
    overflow: hidden; /* Sakriva višak sadržaja */
    text-decoration: none;
    color: #ffffff;
    border: 1px solid #45a29e;
    box-shadow: 0 8px 20px rgba(0,0,0,0.4);
    transition: all 0.3s ease;
}

/* Hover efekt kartice */
.transport-card:hover {
    transform: translateY(-10px); /* Podizanje kartice */
    border-color: #66fcf1;
    box-shadow: 0 12px 30px rgba(102, 252, 241, 0.2);
}

/* Slika u kartici */
.transport-card img {
    width: 100%;
    height: 140px;
    object-fit: cover; /* Popunjava okvir Slika potpuno prekriva element slike */
    filter: brightness(0.8); /* Blago zatamnjenje primjenjuje filter svjetline na element, čineći ga 80% svjetlijim od originalnog. */
}

/* Naslov kartice */
.transport-card h3 {
    padding: 15px;
    text-align: center;
    font-size: 1.2rem;
}

/* ================= FORMA ================= */
form {
    background-color: #1f2833;
    padding: 30px;
    border-radius: 12px;
    max-width: 500px;
    margin: 20px auto 40px auto;
    border: 1px solid #45a29e;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

/* Label u formi */
form label {
    display: block;
    margin-top: 15px;
    font-weight: bold;
    color: #66fcf1;
}

/* Input i select polja */
form input, 
form select {
    width: 100%;
    padding: 12px;
    margin-top: 5px;
    border-radius: 8px;
    border: 1px solid #45a29e;
    background-color: #0b0c10;
    color: #fff;
    font-size: 1rem;
}

/* Gumb u formi */
form button {
    background-color: #45a29e;
    color: #0b0c10;
    font-weight: bold;
    border: none;
    padding: 12px;
    margin-top: 25px;
    width: 100%;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s ease;
    text-transform: uppercase;
}

/* Hover efekt gumba */
form button:hover {
    background-color: #66fcf1;
    box-shadow: 0 0 15px rgba(102, 252, 241, 0.4);
}

/* ================= REZULTATI ================= */
.result-card {
    background: #1f2833;
    border-left: 5px solid #66fcf1; /* Naglasna linija */
    border-radius: 10px;
    padding: 25px;
    margin-top: 30px;
    color: #fff;
}

/* ================= FOOTER ================= */
footer {
    background-color: #0b0c10;
    color: #45a29e;
    text-align: center;
    padding: 25px 0;
    border-top: 1px solid #1f2833;
    margin-top: auto; /* Footer ide na dno */
}

/* ================= MOBITELI (do 480px) ================= */
@media (max-width: 480px) {

    body {
        font-size: 0.95rem; /* Malo manji tekst */
    }

    header h1 {
        font-size: 1.4rem; /* Manji naslov */
        text-align: center;
    }

    header nav {
        flex-direction: column; /* Linkovi jedan ispod drugog */
        gap: 10px;
        margin-top: 15px;
    }

    .container {
        width: 95%;
        margin: 20px auto;
    }

    .intro h2 {
        font-size: 1.6rem;
    }

    form {
        padding: 20px;
    }

    form input,
    form select,
    form button {
        font-size: 0.95rem;
    }

    .transport-card {
        width: 100%; /* Kartice pune širine */
    }
}

/* ================= TABLETI (481px – 768px) ================= */
@media (min-width: 481px) and (max-width: 768px) {

    header h1 {
        font-size: 1.6rem;
    }

    .container {
        width: 92%;
    }

    .transport-card {
        width: 45%; /* Dvije kartice u redu */
    }
}

/* ================= LAPTOPI (769px – 1200px) ================= */
@media (min-width: 769px) and (max-width: 1200px) {

    .transport-card {
        width: 220px; /* Standardna veličina */
    }
}

/* ================= VELIKI EKRANI (1200px+) ================= */
@media (min-width: 1201px) {

    .container {
        max-width: 1200px;
    }

    .intro h2 {
        font-size: 2.4rem;
    }
}