@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;1,400&display=swap');

:root {
    --bg:            #0D1117;
    --bg-card:       #161B22;
    --bg-card-hover: #1C2128;
    --border:        rgba(48, 54, 61, 0.9);
    --border-subtle: rgba(48, 54, 61, 0.5);
    --text:          #E6EDF3;
    --text-muted:    #8B949E;
    --accent:        #3B82F6;
    --accent-2:      #22D3EE;
    --gradient:      linear-gradient(135deg, #3B82F6 0%, #22D3EE 100%);
    --gradient-hero: linear-gradient(160deg, #0D1117 0%, #0F1D35 50%, #0D1117 100%);
    --radius:        14px;
    --max-w:         820px;
    --nav-h:         64px;
    --transition:    0.25s ease;
    --font-display:  'Syne', sans-serif;
    --font-body:     'Plus Jakarta Sans', sans-serif;
    --shadow-card:   0 1px 0 rgba(255,255,255,0.04) inset, 0 4px 16px rgba(0,0,0,0.3);
}

[data-theme="light"] {
    --bg:            #F6F8FA;
    --bg-card:       #FFFFFF;
    --bg-card-hover: #F0F4F8;
    --border:        rgba(208, 215, 222, 0.9);
    --border-subtle: rgba(208, 215, 222, 0.5);
    --text:          #1F2328;
    --text-muted:    #57606A;
    --accent:        #0969DA;
    --accent-2:      #0891B2;
    --gradient:      linear-gradient(135deg, #0969DA 0%, #0891B2 100%);
    --gradient-hero: linear-gradient(160deg, #0F2952 0%, #0A3A7A 50%, #0F2952 100%);
    --shadow-card:   0 1px 0 rgba(255,255,255,0.9) inset, 0 2px 8px rgba(0,0,0,0.08);
}

[data-lang="sr"] .lang-en { display: none !important; }
[data-lang="en"] .lang-sr { display: none !important; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    transition: background var(--transition), color var(--transition);
}

/* NAV */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-h);
    background: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    transition: background var(--transition);
}

[data-theme="light"] #navbar { background: rgba(246, 248, 250, 0.85); }

.nav-logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-logo span {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-actions {
    display: flex;
    gap: 8px;
}

.btn-nav {
    background: var(--bg-card);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 6px 12px;
    font-family: monospace;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-nav:hover { color: var(--text); border-color: var(--accent); }
#theme-toggle { width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }

/* HERO */
#about-hero {
    background: var(--gradient-hero);
    padding-top: calc(var(--nav-h) + 60px);
    padding-bottom: 60px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

#about-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 50% at 50% 30%, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
}

#about-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
}

.about-hero-inner {
    position: relative;
    z-index: 1;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
}

.about-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.04em;
    margin-bottom: 12px;
}

.about-hero-sub {
    color: rgba(255,255,255,0.45);
    font-size: 0.95rem;
    font-weight: 300;
}

/* CONTENT */
.page-wrap {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
}

.about-section {
    padding: 48px 0;
}

.divider {
    height: 1px;
    background: var(--border-subtle);
    max-width: var(--max-w);
    margin: 0 auto;
}

.section-label {
    font-family: monospace;
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
    display: block;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 32px 36px;
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient);
    border-radius: var(--radius) var(--radius) 0 0;
}

.about-card-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.about-card p {
    color: var(--text-muted);
    line-height: 1.8;
    font-size: 0.95rem;
    text-align: justify;
    hyphens: auto;
}

.about-card p + p { margin-top: 16px; }

.about-card p strong { color: var(--text); font-weight: 600; }

/* Quote style */
.quote-section {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08) 0%, rgba(34, 211, 238, 0.05) 100%);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius);
    padding: 28px 32px;
    position: relative;
}

.quote-section::before {
    content: '"';
    position: absolute;
    top: -10px; left: 20px;
    font-family: var(--font-display);
    font-size: 5rem;
    color: var(--accent);
    opacity: 0.2;
    line-height: 1;
}

.quote-text {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    font-style: italic;
}

/* Back link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 0;
    transition: color var(--transition);
    text-decoration: none;
    margin-bottom: 24px;
}

.back-link:hover { color: var(--text); }

footer {
    border-top: 1px solid var(--border-subtle);
    padding: 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: monospace;
}

@media (max-width: 600px) {
    #about-hero { padding-top: calc(var(--nav-h) + 40px); padding-bottom: 40px; }
    .about-card { padding: 24px 20px; }
    .page-wrap { padding: 0 16px; }
}