:root {
    --primary-blue: #003366; 
    --my-logos-cyan: #179FD1;
    --arrow-bg: #DAE8FC;
    --light-bg: #f4f7f9;
    --text-main: #2d3436;
    --text-muted: #636e72;
}
* { box-sizing: border-box; }

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #fff;
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: "Liberation Serif", serif;
    font-weight: normal;
}

h1 { font-size: 2em; }
h2 { font-size: 1.5em; }
h3 { font-size: 1.25em; }
h4 { font-weight: normal !important; }

/* --- Layout --- */
header {
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-bottom: 1px solid #eee;
}

.logo-container img {
    max-width: 400px;
    height: auto;
}

/* --- Side Images --- */
.side-image {
    position: fixed;
    top: 0;
    height: 100vh;
    width: calc((100% - 1000px) / 2);
    background-repeat: no-repeat;
    background-size: cover; 
    background-position: center center;    
    overflow: hidden;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
#    display: none;
visibility: visible;
}

.left-img { left: 0; background-image: url('/assets/avalski-toranj.jpg'); }
.right-img { right: 0; background-image: url('/assets/kula-beograd.jpg'); }

@media (min-width: 901px) {
    .side-image {
        display: block;
        opacity: 0.5;
    }
}

/* --- Zoom container --- */
/* 1. Kontejner koji drži sliku */
.zoom-container {
    overflow: hidden;      /* KLJUČNO: Sve što izađe van okvira kontejnera biće sakriveno */
    box-shadow: 0 5px 20px rgba(0,0,0,0.2); /* Opciono: Senka za lepši izgled */
    border-radius: 8px;     /* Opciono: Blago zaobljeni uglovi */

    display: block;
    margin-left: auto;     /* Gura sa leve strane */
    margin-right: auto;    /* Gura sa desne strane */
    width: fit-content;    /* KLJUČNO: Da kontejner ne ode na 100% širine, već ostane uz sliku */
    overflow: hidden;
}

/* 2. Osnovni stil za sliku */
.zoom-sketch {
    max-width: 100%;       /* Slika se prilagođava kontejneru */
    height: auto;
    
    /* KLJUČNO ZA GLADAK PRELAZ */
    transition: transform 0.3s ease; /* Prelaz traje 0.3 sekunde, ravnomerno */
}

/* 3. Efekat na hover */
.zoom-container:hover .zoom-sketch {
    /* KLJUČNO ZA ZUMIRANJE */
    transform: scale(1.1); /* Povećava sliku za 10% (1.1 = 110%) */
    cursor: pointer;      /* Menja kursor u ruku da bi se znalo da je klikabilno */
}

/* --- Max width area (main class) --- */
.max-width-area, .title-bar {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
    width: 100%;
    position: relative;
    z-index: 2;
    background: white;
}

.title-bar {
    display: block;
    margin-top: 50px; /* Prilagodi broj piksela po želji */
#    background-color: #3498db; /* Boja pozadine (plava) */
#    color: white;              /* Boja teksta */
    padding: 10px 10px;        /* Razmak između teksta i ivica (gore-dole, levo-desno) */
    box-sizing: border-box;    /* Sprečava da padding "izgura" bar van ekrana */
    font-family: sans-serif;   /* Lepši font */
}

/* --- Navbar --- */
.navbar {
    background-color: var(--primary-blue);
    padding: 0 20px;
    position: sticky; 
    top: 0;
    z-index: 10000; 
    overflow: visible; 
}

.main-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.main-menu > li { position: relative; }

.main-menu a {
    display: block;
    padding: 15px 20px;
    color: white;
    text-decoration: none;
    transition: background-color 0.3s;
}

.main-menu a:hover { background-color: #1B81A9; }

/* --- Submenus --- */
.submenu, .nested-submenu {
    display: none;
    position: absolute;
    background-color: #fff;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    list-style: none;
    padding: 0;
}

.submenu { 
    top: 100%; 
    left: 0; 
    z-index: 10001; 
}

.nested-submenu { 
    top: 0; 
    left: 100%; 
    z-index: 10002; 
}

.submenu a {
    color: #333;
    padding: 12px 20px;
    border-bottom: 1px solid #eee;
    font-size: 0.95rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    white-space: normal; /* Dozvoljava prelamanje ako je baš predugačko, ali min-width drži širinu */
}

.submenu a:hover {
    background-color: var(--light-bg);
    color: var(--primary-blue);
}

.dropdown:hover > .submenu,
.has-submenu:hover > .submenu,
.has-nested-submenu:hover > .nested-submenu {
    display: block;
}

/* --- Indikatori (Strelice/Kockice) --- */
.dropdown > a::after,
.has-nested-submenu > a::after {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background-color: var(--arrow-bg);
    color: var(--primary-blue);
    font-size: 10px;
    border-radius: 4px;
    margin-left: 12px;
    flex-shrink: 0;
    transition: all 0.2s ease;
    /* Forsiranje Arial fonta sprečava emoji stilove browsera */
    font-family: Arial, sans-serif !important;
    text-shadow: none;
    line-height: 1;
}

.dropdown > a::after { content: "\25BC"; } /* Unicode za ▼ */
.has-nested-submenu > a::after { content: "\25B6"; } /* Unicode za ▶ */

.dropdown:hover > a::after,
.has-nested-submenu:hover > a::after {
    background-color: var(--my-logos-cyan);
    color: white;
}

/* --- Hamburger Icon Stil --- */
.hamburger-menu {
    display: none; 
    cursor: pointer;
    padding: 20px 25px; /* Povećan padding za veći "touch" area */
    flex-direction: column;
    gap: 8px; /* Veći razmak između linija */
    width: fit-content;
    background-color: var(--primary-blue);
}

.hamburger-menu span {
    display: block;
    width: 25px; /* Vraćeno na standard */
    height: 3px;
    background-color: white;
    border-radius: 2px;
    transition: 0.3s;
}

/* Opciono: Efekat na hover da se zna da je interaktivno */
.hamburger-menu:hover span {
    background-color: var(--my-logos-cyan);
}

/* --- Media Query za Mobile Menu (ispod 825px) --- */
@media (max-width: 825px) {
    /* 1. Navbar kontejner - Resetujemo padding da hamburger može do ivice */
    .navbar {
        position: relative !important;
        background: transparent !important;
        display: block !important;
        width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    /* 2. Hamburger - Poravnat levo uz samu ivicu ekrana */
    .hamburger-menu {
        display: flex !important;
        position: absolute !important;
        top: 5px !important;
        left: 0 !important; 
        
        width: fit-content !important; 
        padding: 12px 15px !important;
        height: 45px !important;
        
        background-color: var(--primary-blue) !important;
        cursor: pointer;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 5px;
        z-index: 10001;
        border-radius: 0 4px 4px 0;
    }

    .hamburger-menu span {
        display: block;
        width: 25px;
        height: 3px;
        background-color: white;
        border-radius: 2px;
    }

    /* 3. Meni sa opcijama - Širina 200px, otvara se levo */
    .main-menu {
        display: none; 
        flex-direction: column !important;
        
        width: 200px !important; 
        position: absolute !important;
        top: 50px !important; 
        left: 0 !important;
        
        background-color: var(--primary-blue) !important;
        margin: 0 !important;
        padding: 0 !important;
        list-style: none !important;
        z-index: 10000;
        box-shadow: 4px 4px 15px rgba(0,0,0,0.3);
    }

    .main-menu.active {
        display: flex !important;
    }

    /* 4. Stavke unutar menija i Hover efekat */
    .main-menu > li {
        width: 100% !important;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .main-menu a {
        padding: 15px 20px !important; 
        color: white !important;
        font-size: 14px;
        line-height: 1.4;
        display: block;
        width: 100%;
        box-sizing: border-box;
        white-space: normal; 
        text-align: left;
        text-decoration: none;
        transition: background 0.3s;
    }

    /* Popravka hovera - isti kao na desktopu (suptilno prozirno belo) */
    .main-menu a:hover,
    .main-menu li:hover > a {
        background-color: rgba(255, 255, 255, 0.1) !important;
        color: white !important;
    }

    /* 5. Podmeniji (Submenu & Nested) - SVI NIVOI */
    .submenu, .nested-submenu {
        position: static !important; 
        width: 100% !important;
        background-color: #1B81A9 !important; 
        display: none;
        padding-left: 10px !important;
        box-shadow: none !important; 
    }

    /* Otvaranje podmenija na klik (preko .active klase) ili hover */
    .dropdown.active > .submenu, 
    .has-nested-submenu.active > .nested-submenu,
    .dropdown:hover > .submenu,
    .has-nested-submenu:hover > .nested-submenu {
        display: block !important;
    }

    /* 6. Strelice nadole za sve nivoe dubine */
    .dropdown > a::after, 
    .has-nested-submenu > a::after {
        content: "\25BE" !important; 
        float: right !important;
        font-size: 10px !important;
        margin-top: 2px;
        transform: none !important; 
        border: none !important;     
    }

    /* 7. Kontrola klikova - Isključivanje linka za roditeljske stavke */
    .dropdown > a, 
    .has-nested-submenu > a {
        pointer-events: none !important; 
        cursor: default;
    }

    /* Dozvoljavamo klik samo na linkove koji nemaju decu (podmenije) */
    .main-menu li:not(.dropdown):not(.has-nested-submenu) > a {
        pointer-events: auto !important;
    }
}

/* --- Content Sections --- */
.methodology {
    padding: 30px 10px;
    max-width: 800px;
    margin: 0 auto 50px auto;
    border-left: 5px solid var(--primary-blue);
    background: #f9f9f9;
}

., .case-studies-grid {
    display: grid;
    gap: 10px;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.services-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.case-studies-grid { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }

.service-card, .case-studies-card {
    padding: 40px;
    background: white;
    border: 1px solid #eaeaea;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

/* --- Footer --- */
footer {
    background: var(--primary-blue);
    color: #bdc3c7;
    padding: 60px 20px;
    text-align: center;
    align-items: center;
}

.footer-info {
    font-size: 0.95rem;
    max-width: 900px;
    margin: 20px auto 0 auto;
    width: 90%;   
    text-align: center;
    align-items: center;
}

/* --- Mobile Responsive --- */
@media (max-width: 768px) {
    h1 { font-size: 1.8rem; }
    .logo-container img { max-width: 280px; }
    .main-menu { flex-direction: column; }
    .submenu, .nested-submenu { 
        position: static; 
        width: 100%; 
        min-width: 100%;
        box-shadow: none; 
    }
}