/* ============================================
   MK Lab - Společné styly pro celý web
   ============================================ */

/* === ZÁKLADNÍ NASTAVENÍ === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #0d1117 0%, #1a1f2e 50%, #2d3748 100%);
    min-height: 100vh;
    color: white;
    position: relative;
    overflow-x: hidden;
}

/* === HEADER === */
.mklab-header {
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo-link:hover .logo-img {
    transform: scale(1.05);
}

/* === NAVIGACE === */
.main-nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 8px;
    position: relative;
}

.nav-link:hover {
    color: #00d4ff;
    background: rgba(0, 212, 255, 0.1);
}

.nav-link.active {
    color: #00d4ff;
    background: rgba(0, 212, 255, 0.15);
}

/* === MOBILNÍ MENU === */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: white;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 90px;
    left: 0;
    right: 0;
    background: rgba(13, 17, 23, 0.98);
    backdrop-filter: blur(20px);
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 999;
    max-height: calc(100vh - 90px);
    overflow-y: auto;
}

.mobile-menu.active {
    display: block;
}

.mobile-nav-link {
    display: block;
    color: white;
    text-decoration: none;
    padding: 15px 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 18px;
    margin-bottom: 5px;
}

.mobile-nav-link:hover {
    background: rgba(0, 212, 255, 0.1);
    color: #00d4ff;
}

.mobile-menu hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin: 15px 0;
}

/* === MAIN CONTENT === */
.mklab-main {
    min-height: calc(100vh - 200px);
    padding: 40px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

/* === FOOTER === */
.mklab-footer {
    background: rgba(13, 17, 23, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 60px 20px 30px;
    margin-top: 80px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #00d4ff;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.footer-link:hover {
    color: #00d4ff;
    padding-left: 5px;
}

.footer-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.footer-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    line-height: 1.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    margin-bottom: 10px;
}

.footer-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.footer-meta-link {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s ease;
}

.footer-meta-link:hover {
    color: #00d4ff;
}

.footer-separator {
    color: rgba(255, 255, 255, 0.3);
}

/* === RESPONZIVITA === */
@media (max-width: 768px) {
    .header-container {
        padding: 15px 20px;
    }

    .main-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .logo-img {
        height: 40px;
    }

    .mklab-main {
        padding: 20px 15px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-meta {
        flex-direction: column;
        gap: 5px;
    }

    .footer-separator {
        display: none;
    }
}

@media (min-width: 769px) {
    .mobile-menu {
        display: none !important;
    }
}

/* === UTILITY CLASSES === */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.text-center {
    text-align: center;
}

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mt-4 { margin-top: 40px; }

.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.mb-4 { margin-bottom: 40px; }

/* === ANIMACE === */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}