:root {
    --green-primary: #2e7d32;
    --green-hover: #1b5e20;
    --green-accent: #4caf50;
    --dark-bg: #1e241e;
    --light-bg: #f4f7f4;
    --text-dark: #222222;
}

/* Lek protiv skakanja stranica levo-desno */
html {
    overflow-y: scroll;
}

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

body {
    background-color: #ffffff;
    color: var(--text-dark);
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Top Bar */
.top-bar {
    background-color: #111;
    color: #ccc;
    font-size: 13px;
    padding: 8px 0;
    border-bottom: 1px solid #222;
}
.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}
.top-bar a { color: #fff; text-decoration: none; font-weight: bold; }

/* Header / Logo */
.header-main { padding: 15px 0; background: #fff; }
.logo { font-size: 26px; font-weight: bold; color: #111; text-decoration: none; }
.logo span { color: var(--green-primary); }

/* Navigacija */
.navbar {
    background-color: var(--green-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}
.nav-links { display: flex; list-style: none; flex-wrap: wrap; }
.nav-links li a {
    display: block; color: #ffffff; padding: 14px 16px; text-decoration: none;
    font-weight: bold; font-size: 14px; text-transform: uppercase; transition: background 0.3s;
}
.nav-links li a:hover, .nav-links li a.active { background-color: var(--green-hover); }
.nav-links li a.solar-link { background-color: #ff9800; color: #000; }
.nav-links li a.solar-link:hover { background-color: #e68a00; color: #fff; }

/* Sadržaj i Blog Mreža */
.blog-container, .article-container { padding: 50px 0; }
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 20px;
}
.blog-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}
.blog-card img { width: 100%; height: 200px; object-fit: cover; }
.blog-card-body { padding: 20px; display: flex; flex-direction: column; flex-grow: 1; }
.blog-title { font-size: 18px; font-weight: bold; color: #111; margin-bottom: 10px; line-height: 1.3; }
.blog-meta { font-size: 12px; color: #777; margin-bottom: 12px; }
.blog-excerpt { font-size: 14px; color: #555; margin-bottom: 20px; flex-grow: 1; }
.btn-read-more {
    align-self: flex-start;
    background-color: var(--green-primary);
    color: #fff;
    padding: 8px 16px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
    transition: background 0.3s;
}
.btn-read-more:hover { background-color: var(--green-hover); }

/* Pojedinačna stranica / Članci */
.article-content { max-width: 850px; font-size: 16px; color: #333; }
.article-content p { margin-bottom: 20px; }
.article-content h2 { color: #111; margin-top: 35px; margin-bottom: 15px; font-size: 22px; }
.article-img { width: 100%; height: auto; border-radius: 8px; margin: 20px 0 30px 0; display: block; }
blockquote { border-left: 4px solid var(--green-primary); padding-left: 20px; margin: 25px 0; font-style: italic; color: #555; }

/* Footer */
footer { background-color: #111; color: #888; padding: 25px 0; text-align: center; font-size: 14px; margin-top: 50px; }

@media (max-width: 768px) {
    .nav-links { flex-direction: column; }
    .nav-links li a { border-bottom: 1px solid rgba(255,255,255,0.1); }
    .top-bar .container { flex-direction: column; text-align: center; }
}

/* --- DODATAK ZA GLAVNU STRANICU (HERO I SOLARNI SISTEMI) --- */

/* Hero Sekcija (Uvodni deo) */
.hero {
    padding: 70px 0;
    background: linear-gradient(135deg, #1b2e1c 0%, #111e12 100%);
    color: white;
}
.hero-row { 
    display: flex; 
    flex-wrap: wrap; 
    align-items: center; 
    gap: 40px; 
}
.hero-text { flex: 1; min-width: 300px; }
.hero-card { 
    flex: 1; 
    min-width: 300px; 
    background: rgba(255, 255, 255, 0.05); 
    padding: 30px; 
    border-radius: 8px; 
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.hero h1 { font-size: 36px; margin-bottom: 20px; line-height: 1.2; color: #fff; }
.hero h1 span { color: var(--green-accent); }
.lead { font-size: 17px; color: #ddd; margin-bottom: 20px; }

.btn-green {
    background-color: var(--green-accent);
    color: white;
    font-weight: bold;
    border-radius: 4px;
    padding: 12px 25px;
    text-decoration: none;
    display: inline-block;
    transition: 0.3s;
}
.btn-green:hover { background-color: var(--green-primary); }

/* Sekcija Solarni Sistemi */
.py-5 { padding: 60px 0; }
.bg-light { background-color: var(--light-bg); }
.text-center { text-align: center; }
.section-title { font-size: 30px; margin-bottom: 10px; color: #111; }
.section-subtitle { color: #555; margin-bottom: 40px; }

.grid-solari {
    display: flex;
    flex-wrap: wrap;
    gap: 25px;
}
.card-solari {
    flex: 1;
    min-width: 280px;
    background: #ffffff;
    padding: 30px;
    border-radius: 8px;
    border-top: 4px solid var(--green-primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.card-solari h3 { color: var(--green-primary); margin-bottom: 15px; font-size: 20px; }
.card-solari p { color: #555; margin-bottom: 15px; font-size: 15px; }
.card-solari ul { list-style: none; }
.card-solari ul li { margin-bottom: 8px; color: #444; position: relative; padding-left: 20px; font-size: 14px; }
.card-solari ul li::before { content: "✔"; color: var(--green-accent); position: absolute; left: 0; }

/* --- LEPI HAMBURGER MENI ZA MOBILNE TELEFONE --- */
@media (max-width: 768px) {
    /* Sakrivamo običnu dugačku listu */
    .nav-links {
        display: none;
        flex-direction: column;
        background-color: var(--green-primary);
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        z-index: 999;
    }
    
    /* Kada se doda klasa 'otvoreno', meni se lepo prikaže */
    .nav-links.otvoreno {
        display: flex;
    }

    /* Pravimo hamburger dugme na mobilnom */
    .navbar::before {
        content: "☰ MENI";
        color: white;
        font-weight: bold;
        display: block;
        padding: 14px 20px;
        cursor: pointer;
        font-size: 16px;
    }
}