:root {
    --primary-blue: #0066b3;
    --glass-white: rgba(255, 255, 255, 0.94);
    --dark-bg: #000000;
    --blur: blur(30px);
}

/* Skrytí scrollbaru, ale zachování funkce */
html, body {
    scrollbar-width: none;
    -ms-overflow-style: none;
}
html::-webkit-scrollbar, body::-webkit-scrollbar { display: none; }

/* Zámek scrollu na pozadí */
body.no-scroll { overflow: hidden; height: 100vh; }

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Ubuntu', sans-serif; }

.body-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.8);
    opacity: 0; visibility: hidden;
    transition: 0.4s; z-index: 900;
}
.body-overlay.active { opacity: 1; visibility: visible; }

/* NAVBAR */
.fixed-nav {
    position: fixed; top: 0; width: 100%; height: 90px;
    display: grid; grid-template-columns: 1fr 2fr 1fr;
    align-items: center; padding: 0 50px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    z-index: 1000; transition: 0.4s;
}

.nav-logo img { height: 60px; cursor: pointer; }

.nav-search { display: flex; justify-content: center; }
.search-container { position: relative; width: 100%; max-width: 400px; }
.nav-search input {
    width: 100%; padding: 12px 25px; border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.4); background: rgba(255, 255, 255, 0.3);
    color: #fff; font-weight: 700; outline: none; transition: 0.3s;
}
.nav-search input:focus { background: white; color: #333; }

.search-suggestions {
    position: absolute; top: 55px; left: 0; right: 0;
    background: rgba(255, 255, 255, 0.95); backdrop-filter: var(--blur);
    border-radius: 20px; display: none; padding: 15px 0; z-index: 1100;
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}
.suggestion-header { padding: 5px 25px; font-size: 0.7rem; color: #888; text-transform: uppercase; letter-spacing: 1px; }
.suggestion-item { padding: 10px 25px; cursor: pointer; transition: 0.2s; font-weight: 500; }
.suggestion-item:hover { background: rgba(0, 102, 179, 0.1); color: var(--primary-blue); }

.nav-burger { display: flex; justify-content: flex-end; cursor: pointer; }
.burger-icon span {
    display: block; width: 35px; height: 6px;
    background: white; margin: 6px 0; border-radius: 2px;
}

/* HERO */
.hero-section { position: relative; height: 100vh; display: flex; align-items: center; justify-content: center; transition: 0.5s; }
#bgVideo { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.3); z-index: -1; }
.hero-title {color: white;font-size: 3.5rem;text-transform: uppercase;text-align: center;text-shadow: 0 1px 20px rgba(0,0,0,0.8);}

/* MENU OVERLAY */
.menu-overlay {
    position: fixed;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    background: var(--glass-white);
    backdrop-filter: var(--blur);
    border-radius: 10px;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: 0.4s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 20px;
    overflow-y: auto; /* Zde je skrolování uvnitř povoleno */
}
.menu-overlay.active {opacity: 0.95;visibility: visible;}
.close-menu { position: absolute; top: 20px; right: 30px; font-size: 50px; cursor: pointer; color: var(--primary-blue); line-height: 1; }

.menu-section-title {color: var(--primary-blue);font-size: 1.5rem;margin: 50px 0 40px;text-transform: uppercase;text-align: center;}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 40px 0px;
    width: 80%;
    max-width: 70%;
}
.menu-item { display: flex; flex-direction: column; align-items: center; text-align: center; cursor: pointer; transition: 0.3s; }
.menu-item:hover { transform: translateY(-5px); }
.menu-item img {width: 40px;height: 40px;margin-bottom: 12px;}
.menu-item p {font-weight: 700;color: #b7c5d8;font-size: 0.9rem;line-height: 1.2;}

/* CONTENT SECTION */
#contentSection {
    display: none; padding: 140px 40px 80px;
    max-width: 1300px; margin: 0 auto;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 40px;
    animation: fadeIn 0.8s ease forwards;
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.action-card { background: white; border-radius: 20px; overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,0.06); transition: 0.3s; }
.action-card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.12); }
.action-card img { width: 100%; height: 220px; object-fit: cover; }
.action-card-body { padding: 30px; }
.action-card-body h3 { color: var(--primary-blue); margin-bottom: 12px; }
.action-card-body p { color: #666; font-size: 0.95rem; margin-bottom: 20px; line-height: 1.6; }
.card-btn { background: none; border: 2px solid var(--primary-blue); color: var(--primary-blue); padding: 10px 25px; border-radius: 25px; font-weight: 700; cursor: pointer; transition: 0.3s; }
.card-btn:hover { background: var(--primary-blue); color: white; }

/* FOOTER */
footer { background: #fff; padding: 80px 50px 30px; border-top: 1px solid #eee; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 50px; max-width: 1200px; margin: 0 auto; }
.footer-logo { height: 70px; margin-bottom: 25px; }
.footer-col h3 { margin-bottom: 25px; color: var(--primary-blue); text-transform: uppercase; font-size: 1rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 12px; color: #666; cursor: pointer; transition: 0.2s; }
.footer-col li:hover { color: var(--primary-blue); padding-left: 5px; }
.newsletter-box { display: flex; flex-direction: column; gap: 10px; }
.newsletter-box input { padding: 12px; border: 1px solid #ddd; border-radius: 8px; outline: none; }
.newsletter-box button { padding: 12px; background: var(--primary-blue); color: white; border: none; border-radius: 8px; cursor: pointer; font-weight: 700; }
.footer-bottom { text-align: center; margin-top: 70px; padding-top: 25px; border-top: 1px solid #eee; color: #999; font-size: 0.85rem; }

/* MOBILE RESPONSIVE */
@media (max-width: 768px) {
    .fixed-nav { grid-template-columns: 60px 1fr 60px; padding: 0 20px; height: 80px; }
    .nav-logo img { height: 45px; }
    .nav-search input { padding: 10px 15px; font-size: 0.8rem; }
    .hero-title { font-size: 2.2rem; padding: 0 20px; }
    .menu-grid { grid-template-columns: repeat(2, 1fr); }
    .menu-overlay { padding: 60px 15px; }
    #contentSection { padding: 120px 20px 60px; }
}

.nav_color {
  /* Tento filtr změní jakoukoliv barvu na #859bb8 */
  filter: invert(68%) sepia(21%) saturate(545%) hue-rotate(176deg) brightness(88%) contrast(85%);
}}