/* Intro Screen Styles */
#intro-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    /* Fundo Azul Couro Liso Iluminado */
    background-color: #0d1620;
    background-image: 
        /* Luz central difusa (Spotlight) */
        radial-gradient(circle at 50% 30%, rgba(45, 75, 105, 1) 0%, rgba(13, 22, 32, 0) 70%),
        /* Textura micro-granulada muito sutil para efeito de couro liso */
        repeating-radial-gradient(circle at 50% 50%, rgba(255,255,255,0.01) 0, transparent 1px, transparent 3px);
    background-blend-mode: normal;
    box-shadow: inset 0 0 150px rgba(0,0,0,0.95); /* Vinheta forte para focar no centro */
    transition: opacity 1s ease-in-out, visibility 1s ease-in-out;
}

#intro-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.intro-content {
    text-align: center;
    position: relative;
    z-index: 2;
    padding: 20px;
}

.logo-container {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
    /* filter: drop-shadow(0 0 15px rgba(135, 206, 235, 0.5)); Removido efeito de luz */
}

.intro-logo {
    max-width: 300px;
    width: 80vw;
    height: auto;
    /* Removido efeito de flutuar */
    opacity: 0;
    animation: fadeInLogo 2s ease-out forwards;
}

@keyframes fadeInLogo {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

/* Efeito de Brilho removido conforme solicitado */

.intro-title {
    font-family: 'Cinzel', serif;
    color: #e0e0e0;
    font-size: 1.8rem;
    margin-bottom: 50px;
    text-transform: uppercase;
    letter-spacing: 5px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.8);
    opacity: 0;
    animation: fadeInUp 1.5s ease-out 0.5s forwards;
}

#enter-site-btn {
    background: linear-gradient(135deg, #4a7c9d 0%, #1a2b3c 100%); /* Gradiente Azul Premium */
    background-size: 200% auto;
    color: #ffffff; /* Texto branco */
    border: 1px solid rgba(255, 255, 255, 0.2); /* Borda sutil */
    padding: 18px 50px;
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(26, 43, 60, 0.5);
    opacity: 0;
    animation: fadeInUp 1.5s ease-out 1s forwards;
}

#enter-site-btn:hover {
    background-position: right center;
    box-shadow: 0 0 30px rgba(74, 124, 157, 0.6);
    transform: translateY(-2px);
    color: #fff;
}

/* Efeito de brilho sutil no botão */
#enter-site-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.6), transparent);
    transition: 0.6s;
    transform: skewX(-25deg);
}

#enter-site-btn:hover::after {
    left: 200%;
}

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