/* ===== CSS Variables - Dark Mode ===== */
:root {
    --bg-primary: #121212;
    --bg-secondary: #1a1a1a;
    --accent: #00d4ff;
    --accent-hover: #00b8e6;
    --accent-glow: rgba(0, 212, 255, 0.25);
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --border: rgba(255, 255, 255, 0.08);
    --font-main: 'Inter', -apple-system, sans-serif;
}

/* Skriveni tekst za naslov stranice, aria i alt sinhronizaciju (ostaje u DOM-u) */
.u-visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== Navigation - Discrete & Dark ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.nav.scrolled {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.nav__container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.9rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.nav__logo {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--accent);
}

.nav__links {
    display: flex;
    gap: 2.25rem;
}

.nav__links a {
    display: inline-flex;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.nav__links a:hover {
    color: var(--accent);
}

.nav__lang {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}

.nav__lang-sep {
    color: var(--border);
    user-select: none;
}

.nav__lang-btn {
    background: none;
    border: none;
    padding: 0.25rem 0.15rem;
    cursor: pointer;
    font: inherit;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.nav__lang-btn:hover {
    color: var(--accent);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav__toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 6rem 1.5rem 4rem;
}

.hero__glow {
    position: absolute;
    top: 30%;
    right: 15%;
    width: 350px;
    height: 350px;
    background: var(--accent-glow);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    pointer-events: none;
}

.hero__content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero__title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero__subtitle {
    font-size: clamp(0.95rem, 2.2vw, 1.2rem);
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.hero__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    background: var(--accent);
    color: var(--bg-primary) !important;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.hero__cta:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

/* ===== Section Title ===== */
.section__title {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 600;
    text-align: center;
    margin-bottom: 2.5rem;
    color: var(--text-primary);
}

/* ===== O meni Section ===== */
.o-meni {
    padding: 5rem 0;
}

.o-meni__text {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.85;
}

/* ===== Šta radim (Usluge) Section ===== */
.usluge {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.usluge__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

.usluge__card {
    padding: 2rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.usluge__card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3),
                0 0 40px var(--accent-glow);
}

.usluge__icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.usluge__title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.usluge__desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

@media (max-width: 900px) {
    .usluge__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .usluge__grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Projekti Section - Glassmorphism Cards ===== */
.projekti {
    padding: 5rem 0;
}

.projekti__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

/* 3 kolone na velikom ekranu, 2 na tabletu, 1 na telefonu */
@media (max-width: 900px) {
    .projekti__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .projekti__grid {
        grid-template-columns: 1fr;
    }
}

.projekt__card {
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.projekt__card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3),
                0 0 40px var(--accent-glow);
}

.projekt__image {
    display: block;
    aspect-ratio: 400 / 240;
    overflow: hidden;
}

.projekt__image img {
    width: 100%;
    height: 100%;
}

.projekt__content {
    padding: 1.5rem;
}

.projekt__title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.projekt__desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.projekt__btns {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 0.5rem;
    align-items: stretch;
}

.projekt__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 1 1 0;
    min-width: 0;
    padding: 0.55rem 0.65rem;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 6px;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    text-align: center;
}

.projekt__btn--live {
    background: var(--accent);
    color: var(--bg-primary);
    border: 1px solid var(--accent);
    font-weight: 600;
    box-shadow: 0 2px 12px var(--accent-glow);
}

.projekt__btn--live:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: var(--bg-primary);
    box-shadow: 0 4px 16px var(--accent-glow);
}

.projekt__btn--github {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.projekt__btn--github:hover {
    color: var(--accent);
    border-color: rgba(0, 212, 255, 0.45);
    background: rgba(0, 212, 255, 0.06);
}

@media (max-width: 360px) {
    .projekt__btns {
        flex-direction: column;
        flex-wrap: nowrap;
    }

    .projekt__btn {
        flex: 1 1 auto;
        min-width: 100%;
    }
}

.projekt__badge {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    z-index: 2;
    padding: 0.3rem 0.65rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(255, 180, 0, 0.9);
    color: #121212;
    border-radius: 4px;
}

.projekt__card--coming-soon:hover {
    cursor: default;
}

/* ===== Veštine Section - Badges ===== */
.vestine {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.vestine__grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.vestine__badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.25s ease;
}

.vestine__badge:hover {
    background: rgba(0, 212, 255, 0.15);
    border-color: var(--accent);
    color: var(--accent);
}

/* ===== Kontakt Section ===== */
.kontakt {
    padding: 5rem 0;
}

.kontakt__text {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.kontakt__links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.kontakt__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.5rem;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.kontakt__btn:hover {
    background: var(--accent);
    color: var(--bg-primary);
}

/* ===== Footer ===== */
.footer {
    padding: 1.5rem 1.5rem;
    border-top: 1px solid var(--border);
}

.footer__content {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer__link {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.footer__link:hover {
    color: var(--accent);
}

/* ===== Responsive - Mobile ===== */
@media (max-width: 768px) {
    .nav__links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 280px;
        height: 100vh;
        background: rgba(18, 18, 18, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 1.5rem;
        border-left: 1px solid var(--border);
        transition: right 0.3s ease;
    }

    .nav__links.active {
        right: 0;
    }

    .nav__toggle {
        display: flex;
        z-index: 1001;
    }

    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .projekti__grid {
        grid-template-columns: 1fr;
    }

    .hero__glow {
        width: 200px;
        height: 200px;
        top: 15%;
        right: -30%;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 5rem 1rem 3rem;
    }

    .hero__title {
        font-size: 2.5rem;
    }

    .projekt__content {
        padding: 1.25rem;
    }

    .vestine__badge {
        font-size: 0.85rem;
        padding: 0.45rem 0.85rem;
    }
}

/* Sakrij sve prevode po defaultu */
[data-lang="en"], [data-lang="sr"] {
    display: none !important;
}

/* Prikaži srpski samo kada je body klasa lang-sr */
body.lang-sr [data-lang="sr"] {
    display: inline-block !important;
}
body.lang-sr p[data-lang="sr"], body.lang-sr section[data-lang="sr"], body.lang-sr div[data-lang="sr"] {
    display: block !important;
}

/* Prikaži engleski samo kada je body klasa lang-en */
body.lang-en [data-lang="en"] {
    display: inline-block !important;
}
body.lang-en p[data-lang="en"], body.lang-en section[data-lang="en"], body.lang-en div[data-lang="en"] {
    display: block !important;
}

/* Stil za aktivno dugme jezika */
.nav__lang-btn--active {
    color: var(--accent-color, #00d4ff) !important;
    font-weight: bold;
    text-decoration: underline;
}