/* ==========================================================================
   CORPORATE GLASSMORPHISM MENU DESIGN
   Moderní redesign s elegantním megamenu a čistými hlavními položkami
   ========================================================================== */

:root {
    --menu-height: 70px;
    --menu-top-height: 40px;
    --primary-blue: #175ee6;
    --primary-navy: #0f172a;
    --text-dark: #1e293b;
    --text-medium: #64748b;
    --text-light: #94a3b8;
    --glass-bg: rgba(255, 255, 255, 0.92);
    --glass-bg-hover: rgba(255, 255, 255, 0.98);
    --glass-border: rgba(226, 232, 240, 0.6);
    --glass-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
    --glass-shadow-hover: 0 4px 24px rgba(0, 0, 0, 0.1);
    --floating-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --max-width: var(--theme-container-width, 1400px);
    --blur: blur(16px);
    --blur-strong: blur(24px);
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

/* ==========================================================================
   ZÁKLADNÍ STRUKTURA - CORPORATE GLASS
   ========================================================================== */

.hlavni-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border-bottom: 2px solid var(--glass-border);
    transition: var(--transition);
    box-shadow: var(--glass-shadow);
    flex-shrink: 0; /* Sticky footer support */
}

.hlavni-menu.scrolled {
    background: var(--glass-bg-hover);
    box-shadow: var(--glass-shadow-hover);
    border-bottom-color: var(--primary-blue);
}

/* ==========================================================================
   HORNÍ PRUH (KONTAKTNÍ INFORMACE + JAZYKY)
   ========================================================================== */

.menu-top {
    background: var(--primary-blue);
    color: white;
    height: var(--menu-top-height);
    position: relative;
    z-index: 2;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.menu-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
}

.menu-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.kontaktni-udaje {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.kontaktni-udaje .email,
.kontaktni-udaje .cislo,
.kontaktni-udaje .doba {
    display: flex;
    align-items: center;
    font-size: 0.8125rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    transition: color 0.2s ease;
    padding-left: 0;
    padding-right: 2rem;
    position: relative;
    letter-spacing: 0.01em;
    display: inline-flex;
    align-items: center;
}

.kontaktni-udaje .email::after,
.kontaktni-udaje .cislo::after {
    content: '';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 14px;
    background: rgba(255, 255, 255, 0.2);
}

.kontaktni-udaje .doba::after {
    display: none;
}

.kontaktni-udaje .email:hover,
.kontaktni-udaje .cislo:hover {
    color: white;
}

/* Ikony */
.kontaktni-udaje .email i,
.kontaktni-udaje .cislo i,
.kontaktni-udaje .doba i {
    margin-right: 0.5rem;
    opacity: 0.9;
    font-size: 0.875rem;
}



.menu-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Search button */
.search-button {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    padding: 0.375rem;
    border-radius: 4px;
    transition: var(--transition);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

.search-button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* Language switcher */
.jazykovy-prepinac {
    position: relative;
    z-index: 99999;
}

.aktualni-jazyk {
    background: transparent;
    border: none;
    border-radius: 4px;
    padding: 0.375rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.aktualni-jazyk:hover,
.jazykovy-prepinac.active .aktualni-jazyk {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.aktualni-jazyk::after {
    content: '▼';
    font-size: 0.5rem;
    margin-left: 0.375rem;
    opacity: 0.6;
    transition: transform 0.3s ease;
}

.jazykovy-prepinac.active .aktualni-jazyk::after {
    transform: rotate(180deg);
}

.nabidka-jazyku {
    display: none;
    position: absolute;
    top: calc(100% + 0.125rem);
    right: 0;
    background: var(--glass-bg-hover);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
    border-radius: 4px;
    box-shadow: var(--glass-shadow);
    border: 1px solid var(--glass-border);
    padding: 0.25rem;
    min-width: 60px;
    list-style: none;
    z-index: 99999;
    transform: translateY(2px);
    opacity: 0;
    transition: all 0.2s ease;
    pointer-events: none;
}

.jazykovy-prepinac.active .nabidka-jazyku,
.jazykovy-prepinac:hover .nabidka-jazyku {
    pointer-events: auto;
    display: block;
    transform: translateY(0) scale(1);
    opacity: 1;
}

.nabidka-jazyku li {
    margin: 0;
}

.nabidka-jazyku a {
    display: block;
    padding: 0.375rem 0.625rem;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.75rem;
    border-radius: 4px;
    transition: var(--transition);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nabidka-jazyku a:hover {
    background: rgba(23, 94, 230, 0.08);
    color: var(--primary-blue);
}

/* Hamburger (mobile) */
.hamburger {
    display: none;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.hamburger:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ==========================================================================
   HLAVNÍ NAVIGACE - MODERNÍ POLOŽKY
   ========================================================================== */

.menu-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    height: var(--menu-height);
    gap: 2rem;
    position: relative;
}

.main-navigation {
    flex: 1;
}

.nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.25rem;
}

.nav-item {
    position: relative;
}

/* Moderní hlavní položky - čisté a elegantní */
.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.25rem;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    position: relative;
    letter-spacing: -0.01em;
    background: transparent;
}

/* Jemný hover efekt */
.nav-link:hover {
    color: var(--primary-blue);
    background: rgba(23, 94, 230, 0.06);
}

/* Aktivní stav s akcentem */
.nav-item.active .nav-link {
    color: var(--primary-blue);
    background: rgba(23, 94, 230, 0.1);
    font-weight: 700;
}

/* Aktuální stránka (bez otevření mega menu) */
.nav-item.current .nav-link {
    color: var(--primary-blue);
    background: rgba(23, 94, 230, 0.1);
    font-weight: 700;
}

/* Šipka pro submenu - modernější */
.submenu-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: rgba(23, 94, 230, 0.1);
    border-radius: 6px;
    transition: var(--transition);
    opacity: 0.7;
}

.submenu-arrow::before {
    content: '';
    display: block;
    width: 5px;
    height: 5px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-1px);
    transition: var(--transition);
}

.nav-item.has-submenu:hover .submenu-arrow {
    opacity: 1;
    background: rgba(23, 94, 230, 0.15);
    transform: rotate(180deg);
}

.nav-item.active .submenu-arrow {
    background: var(--primary-blue);
    opacity: 1;
}

.nav-item.active .submenu-arrow::before {
    border-color: white;
}

/* Logo */
.logo {
    padding-left: 2rem;
    border-left: 2px solid var(--glass-border);
}

.logo img {
    height: 40px;
    max-width: 180px;
    object-fit: contain;
}

/* ==========================================================================
   MEGAMENU - MODERNÍ KOMPAKTNÍ DESIGN
   ========================================================================== */

.mega-menu {
    position: fixed;
    top: calc(var(--menu-height) + var(--menu-top-height));
    left: 0;
    right: 0;
    background: var(--glass-bg-hover);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
    box-shadow: var(--floating-shadow);
    border-bottom: 1px solid var(--glass-border);
    padding: 2.5rem 0;
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0s linear 0.3s;
    pointer-events: none;
}

/* Most mezi menu a mega menu - neviditelná oblast pro plynulý přechod */
.mega-menu::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    right: 0;
    height: 20px;
    background: transparent;
    z-index: 999;
}

.nav-item.has-submenu.active .mega-menu,
.nav-item.has-submenu:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0s linear 0s;
}

/* Grid layout pro sekce - responzivní 2-3 sloupce */
.mega-menu-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 1200px) {
    .mega-menu-wrapper {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Jednotlivá sekce */
.mega-menu-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Nadpisy jako odkazy */
.mega-section-title {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 0 1rem;
    padding: 0 0 0.5rem 0;
    border-bottom: 2px solid rgba(23, 94, 230, 0.15);
    text-decoration: none;
    transition: var(--transition);
}

.mega-section-title i {
    font-size: 15px;
    opacity: 0.7;
    transition: var(--transition);
}

.mega-section-title:hover {
    color: var(--primary-navy);
    border-bottom-color: var(--primary-blue);
}

.mega-section-title:hover i {
    opacity: 1;
}

.mega-section-title.active {
    color: var(--primary-navy);
    border-bottom-color: var(--primary-blue);
    border-bottom-width: 3px;
}

.mega-section-title.active i {
    opacity: 1;
}

/* Seznam položek v megamenu */
.mega-menu-list {
    list-style: none;
    margin: 0 0 0 1rem;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.mega-menu-list li {
    margin: 0;
}

/* Odkazy v megamenu - bez teček, čisté */
.mega-menu-link {
    display: block;
    padding: 0.5rem 0.875rem 0.5rem 1.25rem;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
    position: relative;
}

.mega-menu-link:hover {
    background: rgba(23, 94, 230, 0.08);
    color: var(--primary-blue);
    transform: translateX(10px);
}

.mega-menu-link.active {
    background: rgba(23, 94, 230, 0.12);
    color: var(--primary-blue);
    font-weight: 600;
}

/* Spacing after fixed menu */
body {
    padding-top: calc(var(--menu-height) + var(--menu-top-height));
}

/* ==========================================================================
   RESPONSIVE - MOBILNÍ A TABLET
   ========================================================================== */

/* Hamburger Button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-right: auto;
}

.hamburger:hover i {
    color: var(--primary-blue);
}

.hamburger i {
    font-size: 24px;
    color: #333;
    transition: color 0.3s ease;
}

/* Mobilní Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 320px;
    max-width: 85%;
    height: 100vh;
    background: #ffffff;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    overflow-y: auto;
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 2rem 0;
}

.mobile-menu.active {
    left: 0;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobilní navigace */
.mobile-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    flex: 1;
}

.mobile-nav-link:hover {
    background: rgba(23, 94, 230, 0.06);
    color: var(--primary-blue);
}

.mobile-nav-item.active > .mobile-nav-header > .mobile-nav-link {
    background: rgba(23, 94, 230, 0.1);
    color: var(--primary-blue);
    font-weight: 600;
}

/* Mobilní submenu toggle */
.mobile-submenu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    min-width: 40px;
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-right: 0.75rem;
}

.mobile-submenu-toggle i {
    font-size: 14px;
    color: var(--primary-blue);
    transition: transform 0.3s ease;
}

.mobile-submenu-toggle:hover {
    background: rgba(23, 94, 230, 0.1);
}

.mobile-submenu-toggle-level2 {
    width: 32px;
    height: 32px;
    min-width: 32px;
    margin-right: 0.5rem;
}

.mobile-submenu-toggle-level2 i {
    font-size: 12px;
}

/* Mobilní submenu */
.mobile-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(23, 94, 230, 0.02);
}

.mobile-nav-item.open .mobile-submenu {
    max-height: 1000px;
}

.mobile-submenu-list {
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
}

.mobile-submenu-link {
    display: block;
    padding: 0.75rem 1.5rem 0.75rem 2.5rem;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.mobile-submenu-link:hover {
    background: rgba(23, 94, 230, 0.06);
    color: var(--primary-blue);
    padding-left: 2.75rem;
}

.mobile-submenu-link.active {
    color: var(--primary-blue);
    font-weight: 600;
    background: rgba(23, 94, 230, 0.08);
}

/* Nested submenu */
.mobile-submenu-list .mobile-submenu-list {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-submenu-list .has-submenu.open .mobile-submenu-list {
    max-height: 1000px;
}

.mobile-submenu-list .mobile-submenu-list .mobile-submenu-link {
    padding-left: 3.5rem;
}

.mobile-submenu-list .mobile-submenu-list .mobile-submenu-link:hover {
    padding-left: 3.75rem;
}

@media (max-width: 1024px) {
    .menu-wrap {
        padding: 0 1.5rem;
    }
    
    .menu-bottom {
        padding: 0 1.5rem;
    }
    
    .mega-menu-wrapper {
        padding: 0 1.5rem;
        gap: 2rem;
    }
    
    .nav-link {
        padding: 0.75rem 1.25rem;
        font-size: 14px;
    }
    
    .hamburger {
        display: flex !important;
    }
    
    .main-navigation {
        display: none !important;
    }
    
    .kontaktni-udaje {
        display: none !important;
    }
    
    .logo {
        margin-left: auto;
        padding-left: 0;
        border-left: none;
    }
    
    /* Skryj mega menu na tabletech */
    .mega-menu-dropdown,
    .mega-menu-overlay {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .main-navigation {
        display: none;
    }
    
    .logo {
        margin-left: auto;
        padding-left: 0;
        border-left: none;
    }
    
    .logo img {
        height: 32px;
        max-width: 150px;
    }
    
    /* Top bar responsivity - zobrazit jen telefon */
    .menu-top {
        padding: 0.4rem 0;
    }
    
    .kontaktni-udaje .email,
    .kontaktni-udaje .doba {
        display: none;
    }
    
    .kontaktni-udaje .cislo {
        padding-left: 0.75rem;
        padding-right: 0;
        font-size: 0.75rem;
    }
    
    .kontaktni-udaje .cislo::after {
        display: none;
    }
    
    .kontaktni-udaje i {
        font-size: 11px;
    }
    
    .jazykovy-prepinac,
    .search-button {
        transform: scale(0.9);
    }
    
    .menu-wrap {
        padding: 0 1rem;
    }
    
    .menu-bottom {
        padding: 0 1rem;
        justify-content: space-between;
    }
    
    .mega-menu-wrapper {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    /* Skrytí celého top baru na malých mobilech */
    .menu-top {
        display: none;
    }
    
    :root {
        --menu-height: 60px;
        --menu-top-height: 0px;
    }
    
    .menu-bottom {
        padding: 0 0.75rem;
    }
}