:root {
    --bg-color: #0a0a0a;
    --text-primary: #ffffff;
    --text-secondary: #8892b0;
    --accent-primary: #00f260; /* Neon Green */
    --accent-secondary: #0575e6; /* Electric Blue */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.05);
    --card-hover: rgba(255, 255, 255, 0.07);
}

html {
    scroll-behavior: smooth; 
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

/* --- Utility / Všeobecné --- */
section {
    padding: 5rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

/* --- Pozadí a Efekty --- */
.background-glow {
    position: fixed;
    top: -20%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(5, 117, 230, 0.15) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    z-index: -1;
    filter: blur(80px);
    animation: pulse 10s infinite alternate;
}

.background-glow-2 {
    position: fixed;
    bottom: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(0, 242, 96, 0.08) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    z-index: -1;
    filter: blur(100px);
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.2); opacity: 0.8; }
}

/* --- Animace pro text (Použito v JS) --- */
.fade-in {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Navigace --- */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    position: absolute;
    width: 100%;
    top: 0;
    z-index: 10;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -1px;
    background: linear-gradient(to right, #fff, #888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-cta {
    background: rgba(255,255,255,0.1);
    padding: 0.6rem 1.2rem;
    border-radius: 30px;
    text-decoration: none;
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--accent-primary);
    color: black;
    border-color: var(--accent-primary);
}

/* --- Hero Sekce --- */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 1rem;
    position: relative;
}

.hero-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

h1 span {
    background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    max-width: 600px;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
}

.btn-group {
    display: flex;
    gap: 1rem;
}

.btn-primary {
    background: white;
    color: black;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s;
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(255,255,255,0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid rgba(255,255,255,0.2);
    transition: background 0.3s;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
}

/* --- Cards Section --- */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 24px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, background 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    background: var(--card-hover);
    border-color: rgba(255,255,255,0.15);
}

.icon {
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.card h3 {
    margin-bottom: 0.8rem;
    font-size: 1.25rem;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* --- Footer --- */
footer {
    padding: 3rem 5%;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--glass-border);
}

/* Mobilní úpravy */
/* --- Mobilní úpravy (pro šířky pod 768px, typicky telefon) --- */
@media (max-width: 768px) {
    /* --- Nadpisy a Text --- */
    h1 { 
        font-size: 2.5rem; /* Zmenšení H1 na menší obrazovky */
        letter-spacing: -1px;
    }

    .hero {
        padding-top: 3rem;
    }
    
    .hero-desc {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .hero-label {
        letter-spacing: 1px;
    }


    /* --- Tlačítka (skládání) --- */
    .btn-group { 
        flex-direction: column; 
        width: 90%; /* Zvětšení šířky, aby se roztáhla přes celou obrazovku */
        max-width: 400px;
    }
    
    .btn-primary, .btn-secondary { 
        width: 100%; 
        text-align: center; 
        padding: 0.8rem 1.5rem;
    }

    /* --- Navigace --- */
    nav {
        padding: 1rem 5%; /* Menší padding nahoře */
    }

    /* --- Sekce Karet (Features) --- */
    .features {
        /* Grid by měl automaticky fungovat s minmax, ale pro jistotu */
        grid-template-columns: 1fr; 
        gap: 1.5rem; /* Menší mezery */
        padding: 3rem 5%;
    }
    
    .card {
        padding: 2rem;
    }
}

/* --- STYLY PRO KROKY (Jak to funguje) --- */

.steps-section {
    padding-top: 5rem; /* Zajištění mezery od předchozí sekce */
}

/* Úprava nadpisu, aby fungoval jako na screenu (bílý text + gradient) */
.section-header {
    margin-top: 5rem;
    text-align: center;
    margin-bottom: 4rem;
}
.section-header h2 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}
.section-header p {
    color: var(--text-secondary); /* Šedý podnadpis */
    font-size: 1.1rem;
}

/* Nastavení, aby "funguje" bylo neonové (pokud to není v hlavním H1 stylu) */
.section-header h2 span {
    background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}


.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    justify-content: center;
    align-items: flex-start;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.step-icon-wrapper {
    /* Vzhled kruhu s neonovým okrajem */
    width: 130px;
    height: 130px;
    border-radius: 50%;
    border: 2px solid var(--accent-primary); /* Neonový okraj */
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    position: relative;
    /* Mírný vnitřní glow efekt */
    background: radial-gradient(circle, rgba(0, 242, 96, 0.1) 0%, rgba(0,0,0,0) 70%);
}

.step-number {
    /* Číslo v pravém horním rohu */
    position: absolute;
    top: 0;
    right: 0;
    background: var(--accent-primary);
    color: black;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 1rem;
    font-weight: 700;
    line-height: 30px; /* Centrování textu vertikálně */
}

.step-icon svg { 
    /* Stylování SVG ikon */
    color: var(--accent-primary); 
}

.step-icon { 
    /* Zajištění správné velikosti ikony uvnitř kruhu */
    font-size: 2.5rem; 
    padding: 10px;
}

.step-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}
.step-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 250px;
}

/* --- Responzivita pro kroky --- */
@media (max-width: 768px) {
    .steps-container {
        /* Skládání pod sebe na mobilu */
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}


/* --- Sekce Proč VENDIFICATION --- */
.benefits-section {
    padding: 5rem 5%;
    position: relative;
    z-index: 2; /* Aby bylo nad efekty pozadí */
}

.benefits-header {
    margin-top: 5rem;
    text-align: center;
    margin-bottom: 4rem;
}

.benefits-header h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Gradient text přesně podle vzoru v H1 (Modrá -> Zelená) */
.text-main-gradient {
    background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text; /* Standardní vlastnost pro jistotu */
}

/* Pomocná třída pro modrý text */
.text-blue {
    color: var(--accent-secondary);
}

.benefits-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.benefit-card {
    /* Skleněný efekt */
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-secondary); /* Modrý okraj při najetí */
}

.benefit-icon {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-green {
    color: var(--accent-primary); /* Zelená pro první dvě ikony */
}

.icon-white {
    color: #ffffff; /* Bílá pro druhé dvě ikony */
}

.benefit-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    color: var(--accent-secondary); /* Modré číslo */
    line-height: 1.2;
}

.benefit-label {
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.benefit-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Responzivita pro mobily */
@media (max-width: 768px) {
    .benefits-header h2 {
        font-size: 2rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr; /* Karty pod sebou */
    }
}



/* --- CTA Sekce (Připraveni na budoucnost) --- */
.cta-section {
    padding: 2rem 5% 8rem 5%; /* Větší mezera dole před patičkou */
    display: flex;
    justify-content: center;
}

.cta-box {
    margin-top: 10rem;
    background: radial-gradient(circle at center, rgba(20, 20, 20, 1) 0%, rgba(10, 10, 10, 1) 100%);
    border: 1px solid var(--glass-border);
    border-radius: 40px; /* Výrazně zaoblené rohy podle obrázku */
    padding: 5rem 2rem;
    text-align: center;
    max-width: 1000px;
    width: 100%;
    position: relative;
    overflow: hidden;
    /* Jemná zelená záře pod kartou */
    box-shadow: 0 20px 80px -20px rgba(0, 242, 96, 0.15);
}

/* Nadpis v CTA */
.cta-box h2 {
    font-size: clamp(2rem, 5vw, 3.5rem); /* Responzivní velikost */
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

/* Ujistíme se, že máme gradient třídu (Modrá -> Zelená) */
.text-main-gradient {
    background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-box p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 3rem auto; /* Centrování textu a mezera pod ním */
}

/* Kontejner pro tlačítka */
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* Tlačítko 1: Zelené (Demo) */
.btn-cta-primary {
    background-color: var(--accent-primary);
    color: #000000; /* Černý text na zelené */
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-cta-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(0, 242, 96, 0.4);
}

/* Tlačítko 2: Skleněné (Email) */
.btn-cta-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background 0.3s ease;
}

.btn-cta-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

/* Mobilní úpravy */
@media (max-width: 768px) {
    .cta-box {
        padding: 3rem 1.5rem;
        border-radius: 24px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .btn-cta-primary, .btn-cta-secondary {
        width: 100%;
        justify-content: center;
        max-width: 300px;
    }
}



/* --- KONTAKTNÍ STRÁNKA --- */

.contact-hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 8rem; /* Aby nezasahovala navigace */
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr; /* Levý sloupec širší */
    gap: 2rem;
    align-items: start;
}

/* Karty (Formulář i Info boxy) */
.contact-card {
    background: rgba(20, 20, 20, 0.8); /* Tmavé pozadí */
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
}

.contact-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: white;
}

/* --- Formulář --- */
.input-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
}

.input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.input-group input, 
.input-group textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 1rem;
    color: white;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.input-group input:focus, 
.input-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.08);
}

.btn-submit {
    width: 100%;
    background-color: var(--accent-primary);
    color: black;
    font-weight: 700;
    padding: 1rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.2s ease;
}

.btn-submit:hover {
    transform: scale(1.02);
}

/* --- Pravý sloupec (Sidebar) --- */
.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Info Card položky */
.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 242, 96, 0.1); /* Jemně zelené pozadí */
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary); /* Zelená ikona */
}

.contact-details {
    display: flex;
    flex-direction: column;
}

.contact-details .label {
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 600;
}

.contact-details .value {
    font-size: 0.95rem;
    color: var(--text-secondary);
    text-decoration: none;
}

/* Demo Card */
.demo-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.btn-demo-blue {
    display: block;
    width: 100%;
    text-align: center;
    background-color: #007AFF; /* Modrá z obrázku */
    color: white;
    font-weight: 700;
    padding: 1rem;
    border-radius: 50px;
    text-decoration: none;
    transition: background 0.2s ease;
}

.btn-demo-blue:hover {
    background-color: #0066d6;
}

/* Responzivita pro kontaktní stránku */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr; /* Pod sebe */
    }
    
    .contact-hero {
        padding-top: 6rem;
    }
}