:root {
    --bg-base: #fbfbfd; 
    --bg-surface: #ffffff;
    --text-primary: #111111;
    --text-secondary: #737373;
    --accent-blue: #0071e3; 
    --dark-navy: #0A1128; 
    
    --border-light: rgba(0, 0, 0, 0.08);
    --border-dark: rgba(0, 0, 0, 0.15);
    
    --rad-sm: 12px;
    --rad-md: 16px;
    --rad-lg: 24px;
    --rad-pill: 999px;
    
    --shadow-sm: 0 4px 12px -2px rgba(0,0,0,0.05);
    --shadow-bento: 0 8px 30px -6px rgba(0,0,0,0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { max-width: 100vw; overflow-x: hidden; scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", sans-serif; background-color: var(--bg-base); color: var(--text-primary); -webkit-font-smoothing: antialiased; line-height: 1.4; }

body.app-mode { overflow: hidden; height: 100vh; background: var(--bg-base); }
.hidden { display: none !important; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-left { text-align: left !important; }
.text-center { text-align: center !important; }

/* TIPO & GUMBI */
h1 { font-size: clamp(40px, 6vw, 64px); font-weight: 800; letter-spacing: -0.04em; line-height: 1.05; margin-bottom: 20px;}
h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 12px; line-height: 1.1; }
h3 { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 8px; }
h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
p { color: var(--text-secondary); font-size: 16px; font-weight: 400; line-height: 1.5; }
a { text-decoration: none; color: inherit; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 20px; border-radius: var(--rad-pill); font-weight: 600; font-size: 14px; cursor: pointer; transition: 0.2s; border: none; }
.btn-primary { background: var(--text-primary); color: #fff; }
.btn-primary:hover { background: #000; }
.btn-outline { background: transparent; border: 1px solid var(--border-dark); color: var(--text-primary); }
.btn-outline:hover { background: var(--bg-surface); }
.btn-small { height: 38px; font-size: 13px; padding: 0 16px; }

.pill-outline { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: var(--rad-pill); font-size: 13px; font-weight: 600; background: rgba(0, 113, 227, 0.05); color: var(--accent-blue); border: 1px solid rgba(0, 113, 227, 0.15); margin-bottom: 24px; }

/* HEADER */
.site-header { position: fixed; top: 0; width: 100%; z-index: 1000; background: rgba(251, 251, 253, 0.85); backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid var(--border-light); }
.header-inner { height: 64px; display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 20px; font-weight: 800; display: flex; align-items: center; gap: 8px; color: var(--text-primary); letter-spacing: -0.02em; }
.desktop-nav { display: flex; gap: 32px; }
.desktop-nav a { color: var(--text-secondary); font-weight: 600; font-size: 14px; transition: 0.2s; }
.desktop-nav a:hover { color: var(--text-primary); }
.header-actions { display: flex; gap: 12px; }
.hamburger-btn { display: none; background: transparent; border: none; color: var(--text-primary); cursor: pointer; padding: 8px; }

.mobile-menu-overlay { position: fixed; inset: 0; top: 64px; background: rgba(255,255,255,0.98); backdrop-filter: blur(10px); z-index: 999; display: flex; flex-direction: column; visibility: hidden; opacity: 0; transition: 0.3s; }
.mobile-menu-overlay.active { visibility: visible; opacity: 1; }
.mobile-menu-content { padding: 32px 24px; text-align: left; }
.mobile-link { font-size: 24px; font-weight: 800; color: var(--text-primary); margin-bottom: 24px; display: block; }
@media (min-width: 769px) { .mobile-menu-overlay { display: none !important; } } 

/* LANDING SECTIONS */
.hero { padding: 120px 0 60px; position: relative; }
.hero-inner { max-width: 800px; margin: 0 auto; position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; }
.hero p { max-width: 540px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; }

.trust-bar { border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); padding: 20px 0; background: var(--bg-surface); }
.trust-flex { display: flex; align-items: center; justify-content: center; gap: 24px; }
.trust-text { font-size: 14px; font-weight: 600; color: var(--text-secondary); margin: 0; }
.trust-logos { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; justify-content: center; }
.trust-item { display: flex; align-items: center; gap: 6px; font-weight: 600; font-size: 15px; color: var(--text-secondary); }

.feature-split-section { padding: 80px 0; background: var(--bg-surface); }
.feature-split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-bottom: 80px; }
.feature-split:last-child { margin-bottom: 0; }
.feature-split.reverse { direction: rtl; }
.feature-split.reverse > * { direction: ltr; }
.feature-icon { width: 48px; height: 48px; background: rgba(0, 113, 227, 0.08); color: var(--accent-blue); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.feature-list li { display: flex; align-items: center; gap: 12px; font-size: 15px; font-weight: 600; color: var(--text-primary); }
.feature-list i { color: var(--accent-blue); flex-shrink: 0; }

.mockup-card { background: var(--bg-base); border: 1px solid var(--border-light); border-radius: var(--rad-lg); padding: 24px; }
.mockup-header { font-size: 12px; font-weight: 700; text-transform: uppercase; color: var(--text-secondary); margin-bottom: 16px; border-bottom: 1px solid var(--border-dark); padding-bottom: 12px; }
.mockup-img { width: 100%; height: 180px; background-color: #e5e5ea; border-radius: 12px; margin-bottom: 16px; }
.mockup-price { font-size: 20px; font-weight: 800; color: var(--accent-blue); display: block; margin-top: 8px; }
.mockup-avatar { width: 40px; height: 40px; background: var(--accent-blue); border-radius: 50%; color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; }
.mockup-tags .tag { font-size: 12px; background: #fff; padding: 4px 10px; border-radius: 6px; font-weight: 600; margin-right: 6px; border: 1px solid var(--border-light); }

.bento-section { padding: 80px 0; background: var(--bg-base); }
.section-heading { margin-bottom: 32px; }
.bento-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: minmax(200px, auto); gap: 16px; }
.bento-card { background: var(--bg-surface); border-radius: var(--rad-md); padding: 24px; border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; text-align: left; }
.bento-large { grid-column: span 2; grid-row: span 2; }
.bento-wide { grid-column: span 2; grid-row: span 1; }
.bento-icon { width: 40px; height: 40px; background: var(--bg-base); border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--text-primary); border: 1px solid var(--border-light); }

.bento-dark { background: var(--dark-navy); color: #ffffff; border: none; }
.bento-dark p { color: rgba(255,255,255,0.7); }
.dark-icon { background: rgba(255,255,255,0.1); color: #fff; border: none; }

.roles { padding: 80px 0; background: var(--bg-surface); border-top: 1px solid var(--border-light); }
.roles-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px; }
.role-card { padding: 24px; border-radius: var(--rad-md); background: var(--bg-base); border: 1px solid var(--border-light); text-align: left; }
.role-icon-wrap { background: var(--bg-surface); border: 1px solid var(--border-light); width: 40px; height: 40px; margin-bottom: 16px; border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--text-primary); }

.final-cta { padding: 80px 0; background: var(--bg-base); }
.cta-inner { background: var(--dark-navy); border-radius: var(--rad-lg); padding: 60px 40px; color: #fff; display: flex; flex-direction: column; align-items: center; }
.cta-inner p { color: rgba(255,255,255,0.7); margin-bottom: 32px; max-width: 400px; text-align: center; }

.footer { background: var(--bg-surface); padding: 60px 0 40px; border-top: 1px solid var(--border-light); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-links a { color: var(--text-secondary); font-size: 14px; font-weight: 500; }

/* =========================================
   APP DASHBOARD STYLES
   ========================================= */
.app-container { display: flex; height: 100vh; width: 100vw; background: var(--bg-base); }
.sidebar { width: 280px; background: var(--bg-surface); border-right: 1px solid var(--border-light); display: flex; flex-direction: column; flex-shrink: 0; }
.sidebar-header { height: 72px; display: flex; align-items: center; padding: 0 24px; border-bottom: 1px solid var(--border-light); }
.menu { flex: 1; padding: 24px 16px; display: flex; flex-direction: column; gap: 6px; }
.menu-item { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: var(--rad-md); color: var(--text-secondary); font-weight: 600; font-size: 15px; cursor: pointer; transition: 0.2s; }
.menu-item:hover { background: var(--bg-base); color: var(--text-primary); }
.menu-item.active { background: var(--text-primary); color: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }

.main { flex: 1; display: flex; flex-direction: column; position: relative; }
.topbar { height: 72px; background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-light); display: flex; align-items: center; justify-content: space-between; padding: 0 32px; flex-shrink: 0; z-index: 10; }
.content-scroll { flex: 1; overflow-y: auto; padding: 32px; }

.ad-card { background: var(--bg-surface); border-radius: var(--rad-md); border: 1px solid var(--border-light); padding: 16px; box-shadow: var(--shadow-sm); transition: 0.2s; }
.ads-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }

/* =========================================
   MOBILE BOTTOM NAV (LANDING & APP)
   ========================================= */
.mobile-bottom-nav { display: none; position: fixed; bottom: 0; left: 0; width: 100%; background: rgba(255,255,255,0.95); backdrop-filter: blur(20px); border-top: 1px solid var(--border-light); z-index: 1000; padding-bottom: env(safe-area-inset-bottom); }
.nav-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 10px 0; color: var(--text-secondary); font-size: 11px; font-weight: 600; gap: 4px; transition: 0.2s; text-decoration: none; }
.nav-item.active { color: var(--accent-blue); }
.qr-fab { width: 52px; height: 52px; background: var(--dark-navy); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; transform: translateY(-16px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); border: 4px solid var(--bg-base); }

/* =========================================
   MOBILE RESPONSIVENESS
   ========================================= */
@media (max-width: 992px) {
    .feature-split { grid-template-columns: 1fr; gap: 40px; }
    .feature-split.reverse { direction: ltr; }
}

@media (max-width: 768px) {
    body { padding-bottom: 80px; } /* Osigurava da se sadržaj može skrolati iznad donjeg menija */
    
    .container { padding: 0 16px; }
    h1 { font-size: 34px; }
    h2 { font-size: 26px; }
    
    .desktop-nav, .header-actions { display: none !important; }
    .hamburger-btn { display: block; }
    
    .hero { padding: 90px 0 30px; }
    .hero p { font-size: 15px; margin-bottom: 24px; }
    .hero-actions { flex-direction: column; width: 100%; gap: 10px; align-items: stretch; }
    .btn { width: 100%; height: 40px; font-size: 14px; }
    
    .trust-flex { flex-direction: column; gap: 12px; align-items: flex-start; }
    .trust-logos { gap: 16px; justify-content: flex-start; }
    
    .feature-split-section, .bento-section, .roles, .final-cta { padding: 40px 0; }
    .footer { padding: 40px 0 120px; } /* Dodatan prostor na dnu footera */
    
    .bento-grid, .roles-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 12px !important; }
    .bento-large, .bento-wide { grid-column: span 1 !important; grid-row: span 1 !important; }
    .bento-card, .role-card { padding: 16px !important; border-radius: 16px !important; }
    .bento-icon, .role-icon-wrap { width: 40px !important; height: 40px !important; margin-bottom: 12px !important; border-radius: 10px !important; }
    .bento-icon svg, .role-icon-wrap svg { width: 20px; height: 20px; }
    .bento-card h3, .role-card h4 { font-size: 15px !important; font-weight: 700 !important; margin-bottom: 4px !important; }
    .bento-card p, .role-card p { font-size: 13px !important; line-height: 1.4 !important; }
    
    .cta-inner { padding: 32px 20px; border-radius: 20px; text-align: center; }

    /* =========================================
       APP MOBILE OVERRIDES
       ========================================= */
    .hide-mobile, .sidebar { display: none !important; }
    .topbar { padding: 0 20px; height: 64px; }
    .content-scroll { padding: 20px 20px 100px; }
    
    /* Globalni donji meni na mobilnom */
    .mobile-bottom-nav { display: flex; }
    
    .ads-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .ad-card { padding: 12px; border-radius: 16px; }
}