/* Definícia premenných pre jednoduchú údržbu */
:root {
    --primary: #10b981;
    --primary-hover: #059669;
    --secondary: #3b82f6;
    --bg-dark: #1e293b;
    --bg-card: #334155;
    --text-light: #f8fafc;
    --border-color: #475569;
    --shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f8fafc; /* Svetlé pozadie pre kontrast k PWA sekcii */
    color: #1e293b;
    line-height: 1.6;
    margin: 0;
}

/* Animácia pre vznášanie mockupu telefónu */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
    width: 320px; /* Šírka telefónu */
    height: 650px; /* Výška telefónu */
    margin: 0 auto; /* Vycentrovanie */
}

/* Plynulé prechody pre interaktívne prvky (odkazy, karty) */
a, button {
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
}

.group {
    transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

/* Vlastný moderný scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary) #f1f5f9;
}

::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 10px;
}

/* PWA Inštalačný návod */
.pwa-container {
    max-width: 1000px;
    margin: 4rem auto;
    padding: 2rem;
    background-color: var(--bg-dark);
    color: var(--text-light);
    border-radius: 1.5rem;
    box-shadow: var(--shadow);
}

.pwa-title {
    margin-top: 0;
    font-size: 1.875rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: #ffffff;
}

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

.pwa-card {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.pwa-card:hover {
    transform: translateY(-5px);
}

.pwa-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pwa-list {
    list-style: none;
    padding: 0;
}

.pwa-list li {
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.pwa-badge-android, .pwa-badge-ios {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.pwa-badge-android { color: var(--primary); }
.pwa-badge-ios { color: var(--secondary); }

@media (max-width: 640px) {
    .pwa-container {
        margin: 2rem 1rem;
        padding: 1.5rem;
    }
}