/* =============================================================================
   GLOBÁLNÍ STYLY - Černé pozadí a základní nastavení
============================================================================= */
body {
    background: linear-gradient(135deg, #000000, #1a1a1a);
    color: #fff;
    font-family: 'Poppins', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 0;
    text-align: center;
    animation: fade-in 1.5s ease-out;
    background: #000;
}

/* =============================================================================
   HLAVNÍ KONTEJNER - Středový blok
============================================================================= */
.info-container {
    background: rgba(26, 26, 26, 0.9);
    padding: 50px;
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 10px 30px rgba(255, 0, 0, 0.5);
    opacity: 0;
    transform: translateY(-20px);
    animation: slide-in 1.2s ease-out forwards;
}

/* =============================================================================
   TEXT - Nadpis a popis
============================================================================= */
.info-container h2 {
    color: #ff3b3b;
    font-size: 2.5rem;
    margin-bottom: 15px;
    letter-spacing: 1px;
    animation: fade-in 1.5s ease-out 0.5s forwards;
    opacity: 0;
}

.info-text {
    font-size: 1.3rem;
    line-height: 1.6;
    margin-bottom: 20px;
    opacity: 0;
    animation: fade-in 1.5s ease-out 0.8s forwards;
}

/* =============================================================================
   TLAČÍTKO - Styl a animace
============================================================================= */
.back-button {
    display: inline-block;
    background: #ff3b3b;
    color: #fff;
    padding: 14px 24px;
    font-size: 1.2rem;
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 10px rgba(255, 0, 0, 0.4);
    opacity: 0;
    animation: fade-in 1.5s ease-out 1s forwards;
}

/* Efekt při najetí myší */
.back-button:hover {
    background: #ff6666;
    transform: scale(1.05);
}

/* =============================================================================
   RESPONSIVITA - Mobilní zařízení
============================================================================= */
@media (max-width: 768px) {
    .info-container {
        padding: 40px;
    }

    .info-container h2 {
        font-size: 2rem;
    }

    .info-text {
        font-size: 1.2rem;
    }

    .back-button {
        font-size: 1rem;
        padding: 12px 20px;
    }
}

/* =============================================================================
   ANIMACE - Efekty pro lepší vzhled
============================================================================= */
@keyframes fade-in {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@keyframes slide-in {
    0% {
        opacity: 0;
        transform: translateY(-30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}