/* ============================================================
   PORTFOLIO S FILTRIRANJEM - CSS Stilovi
   Datoteka: portfolio-stil.css
   ============================================================ */

/* --- GUMBI ZA FILTRIRANJE --- */
.portfolio-filteri {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin: 30px 0 40px;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid #333;
    background: transparent;
    color: #333;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 30px;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.filter-btn:hover {
    background: #333;
    color: #fff;
}

/* Aktivan gumb */
.filter-btn.aktivan {
    background: #333;
    color: #fff;
}

/* --- PORTFOLIO GRID --- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 3 kolone na desktopu */
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- POJEDINI RAD --- */
.portfolio-item {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.4s ease;
}

.portfolio-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

/* Sakriveni elementi (filtriranje) */
.portfolio-item.sakriven {
    display: none;
}

/* --- SLIKA --- */
.portfolio-slika {
    overflow: hidden;
    aspect-ratio: 16/10; /* Konzistentan omjer slike */
}

.portfolio-slika img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
    display: block;
}

.portfolio-item:hover .portfolio-slika img {
    transform: scale(1.05);
}

/* --- INFO SEKCIJA --- */
.portfolio-info {
    padding: 20px;
}

.portfolio-info h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 8px;
    color: #1a1a1a;
    line-height: 1.3;
}

.portfolio-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0 0 14px;
}

/* --- OZNAKE KATEGORIJA --- */
.portfolio-kategorije {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.kat-oznaka {
    display: inline-block;
    background: #f0f0f0;
    color: #555;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* --- PORUKA KAD NEMA RADOVA --- */
.nema-radova {
    grid-column: 1 / -1;
    text-align: center;
    color: #999;
    font-size: 16px;
    padding: 60px 20px;
    background: #f9f9f9;
    border-radius: 12px;
}

/* ============================================================
   RESPONZIVNOST - Tablet i Mobitel
   ============================================================ */

/* Tablet: 2 kolone */
@media (max-width: 900px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

/* Mobitel: 1 kolona */
@media (max-width: 580px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .portfolio-filteri {
        gap: 8px;
        margin: 20px 0 30px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 12px;
    }

    .portfolio-info h3 {
        font-size: 16px;
    }
}