/* --- CSS STYLY --- */
:root {
    --primary: #00C6FF;
    --secondary: #0072FF;
    --dark-bg: #0f172a; 
    --darker-bg: #0b1120;
    --light-bg: #f8f9fa; 
    --text-dark: #1e293b;
    --text-light: #f1f5f9;
    --section-spacing: 120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

/* --- NAVIGACE --- */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.95); 
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 2px;
    color: #fff;
    z-index: 101; /* Aby bylo logo nad mobilním menu */
}
.logo span { color: var(--primary); }

/* Desktop Menu Links */
.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    transition: color 0.3s ease;
    font-family: 'Montserrat', sans-serif;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links .btn-nav {
    padding: 8px 24px;
    border: 1px solid var(--primary);
    border-radius: 4px;
    color: var(--primary);
    transition: all 0.3s ease;
}

.nav-links .btn-nav:hover {
    background: var(--primary);
    color: var(--dark-bg);
    box-shadow: 0 0 15px rgba(0, 198, 255, 0.4);
}

/* Hamburger Icon */
.hamburger {
    display: none;
    cursor: pointer;
    z-index: 101;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: white;
}

/* Hamburger animace */
.hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: var(--primary);
}
.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}
.hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: var(--primary);
}

/* Mobilní menu (defaultně skryté) */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0; /* Změna na left: 0 pro full screen */
    width: 100%;
    height: 100vh; /* Přes celou výšku */
    background: var(--darker-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 40px;
    z-index: 99;
    transform: translateY(-100%); /* Schované nahoře */
    transition: transform 0.4s ease-in-out;
}

.mobile-menu.active {
    transform: translateY(0); /* Sjezd dolů */
}

.mobile-link {
    font-size: 1.5rem;
    text-decoration: none;
    color: white;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: color 0.3s ease;
}

.mobile-link:hover {
    color: var(--primary);
}

.mobile-link.highlight {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

/* === HLAVNÍ SEKCE (Hero) === */
.main-header {
    position: relative;
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle at center, #1e293b 0%, #0f172a 100%);
    color: var(--text-light);
    overflow: hidden;
    padding: 100px 20px;
}

#molecule-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.main-content {
    z-index: 2;
    max-width: 900px;
}

.main-header h1 {
    font-size: 5rem;
    line-height: 1;
    margin-bottom: 30px;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.main-header p {
    font-size: 1.3rem;
    color: #cbd5e1;
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

.btn-outline {
    display: inline-block;
    padding: 18px 50px;
    border: 2px solid var(--primary);
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: 0.3s all ease;
    background: rgba(0,0,0,0.3);
    border-radius: 4px;
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--dark-bg);
    box-shadow: 0 0 40px rgba(0, 198, 255, 0.5);
    transform: translateY(-3px);
}

/* === ZBYTEK STRÁNKY === */
.content-section {
    padding: var(--section-spacing) 10%;
    background-color: #ffffff;
}

.section-dark {
    background-color: var(--dark-bg);
    color: var(--text-light);
}

.section-title {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 20px;
    color: inherit;
}

.section-subtitle {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 80px auto;
    color: #64748b;
    font-size: 1.1rem;
}

.section-dark .section-subtitle {
     color: #94a3b8;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 60px;
    align-items: start;
}

.classic-card {
    background: #ffffff;
    padding: 0;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    border: none;
    text-align: left;
    transition: all 0.4s ease;
    overflow: hidden;
    height: 100%;
}

.classic-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 60px rgba(0, 114, 255, 0.15);
}

.img-wrap {
    width: 100%;
    height: 240px;
    margin: 0;
    background: #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.classic-card:hover .img-wrap img {
    transform: scale(1.1);
}

.card-content {
    padding: 40px;
}

.classic-card h3 {
    margin-bottom: 15px;
    color: var(--text-dark);
    font-size: 1.5rem;
}

.classic-card p {
    color: #64748b;
    font-size: 1rem;
}

/* KROKY */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    text-align: center;
}

.step-item { position: relative; }

.step-number {
    font-size: 4rem;
    font-weight: 900;
    color: rgba(0, 198, 255, 0.2);
    font-family: 'Montserrat', sans-serif;
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 0;
}

.step-content {
    position: relative;
    z-index: 1;
    padding-top: 40px;
}

.step-content h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--secondary);
}

/* TESTIMONIALS */
.testimonial-card {
    background: rgba(255,255,255,0.05);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.1);
}

.quote-icon {
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.5;
    line-height: 1;
    margin-bottom: 20px;
}

.testimonial-text {
     font-style: italic;
     font-size: 1.1rem;
     margin-bottom: 30px;
     color: #cbd5e1;
}

.testimonial-author {
    font-weight: 700;
    color: var(--primary);
}

/* FAQ */
.faq-item {
    max-width: 800px;
    margin: 0 auto 30px auto;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 30px;
}

.faq-question {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-dark);
    display: flex;
    align-items: center;
}

.faq-question::before {
    content: 'Q.';
    color: var(--secondary);
    margin-right: 15px;
    font-size: 1.5rem;
}

.faq-answer {
    color: #64748b;
    padding-left: 40px;
}

/* === Pricing Sekce === */
.pricing {
    background: linear-gradient(to bottom, #f8f9fa, #e2e8f0);
    padding: var(--section-spacing) 5%; /* Menší padding po stranách */
    text-align: center;
}

.pricing-container {
    max-width: 1000px; /* Širší kontejner */
    margin: 0 auto;
}

/* Karta naležato */
.pricing-box.horizontal-layout {
    display: flex; /* Dělá z toho řádek */
    flex-direction: row;
    align-items: stretch; /* Roztáhne oba sloupce na stejnou výšku */
    background: white;
    border-radius: 30px;
    box-shadow: 0 30px 70px rgba(0,0,0,0.1);
    overflow: hidden; /* Aby obrázek nepřetékal rohy */
    text-align: left; /* Text zarovnaný doleva */
    padding: 0; /* Padding řešíme uvnitř sloupců */
    max-width: 100%; /* Roztáhne se na max kontejneru */
}

/* Levá strana - Obrázek */
.pricing-visual {
    flex: 1; /* Zabere 1 díl šířky */
    position: relative;
    min-height: 400px; /* Minimální výška */
}

.pricing-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Obrázek vyplní celou plochu bez deformace */
    display: block;
}

/* Pravá strana - Text */
.pricing-details {
    flex: 1; /* Zabere taky 1 díl šířky (50/50) */
    padding: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.pricing-details h3 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.pack-desc {
    color: #94a3b8;
    margin-bottom: 25px;
    font-size: 1rem;
}

.price-tag {
    display: flex;
    align-items: baseline;
    gap: 15px;
    margin-bottom: 30px;
}

.current-price {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--secondary);
    font-family: 'Montserrat', sans-serif;
    line-height: 1;
}

.old-price {
    text-decoration: line-through;
    color: #cbd5e1;
    font-size: 1.5rem;
}

.features-list {
    list-style: none;
    margin-bottom: 30px;
}

.features-list li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    color: #475569;
    font-size: 1.05rem;
}

.features-list li span {
    color: var(--primary);
    margin-right: 12px;
    font-weight: bold;
    font-size: 1.2rem;
}

.btn-solid.full-width {
    width: 100%;
    text-align: center;
    padding: 18px;
}

.shipping-note {
    text-align: center;
    font-size: 0.8rem;
    color: #94a3b8;
    margin-top: 15px;
}

/* --- Trust Badges (Certifikáty) --- */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: 50px; /* Větší mezery pro vzdušnost */
    margin-top: 60px;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    opacity: 0.8; /* Trochu výraznější než předtím */
    transition: all 0.3s ease;
    cursor: default;
}

.badge:hover { 
    opacity: 1; 
    transform: translateY(-5px); /* Jemné nadskočení při najetí */
}

.badge-icon {
    /* Nastavení velikosti kolečka */
    width: 70px;
    height: 70px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    
    /* Barva ikony uvnitř */
    color: var(--secondary); 
    
    /* Stín a rámeček */
    box-shadow: 0 10px 25px rgba(0, 114, 255, 0.1);
    border: 1px solid rgba(0, 114, 255, 0.1);
    transition: all 0.3s ease;
}

/* Nastavení SVG ikony */
.badge-icon svg {
    width: 32px; /* Velikost samotné ikonky */
    height: 32px;
}

.badge:hover .badge-icon {
    background: var(--secondary); /* Při najetí se kolečko podbarví modře */
    color: white; /* A ikona zbělá */
    box-shadow: 0 15px 30px rgba(0, 114, 255, 0.3);
}

.badge span {
    font-weight: 700;
    font-size: 0.9rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Montserrat', sans-serif;
}

/* --- RESPONZIVITA --- */
@media (max-width: 900px) {
    .pricing-box.horizontal-layout {
        flex-direction: column; /* Na mobilech zpátky pod sebe */
        max-width: 500px;
        margin: 0 auto;
    }
    
    .pricing-visual {
        min-height: 250px;
        height: 250px;
    }
    
    
    .pricing-details {
        padding: 30px;
    }
    
    .current-price {
        font-size: 3rem;
    }
}

.btn-solid {
    display: inline-block;
    background: linear-gradient(45deg, var(--secondary), var(--primary));
    color: white;
    padding: 20px 60px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 900;
    text-transform: uppercase;
    box-shadow: 0 15px 30px rgba(0, 114, 255, 0.4);
    transition: all 0.3s ease;
}

.btn-solid:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 25px 50px rgba(0, 114, 255, 0.6);
}

footer {
    text-align: center;
    padding: 80px 20px;
    background: var(--darker-bg);
    color: #64748b;
}

footer p strong {
    color: var(--primary);
}

/* Mobile Responzivita */
@media (max-width: 768px) {
    /* Skryjeme desktop menu */
    .nav-links {
        display: none;
    }
    
    /* Zobrazíme hamburger */
    .hamburger {
        display: block;
    }

    /* Ostatní styly pro mobily */
    .main-header h1 { font-size: 3.5rem; }
    .section-title { font-size: 2.2rem; }
    .pricing-box { padding: 40px 20px; }
    .price { font-size: 3.5rem; }
    .btn-outline, .btn-solid { padding: 15px 30px; width: 100%; text-align: center; }
}