.sgae-intro {
    position: fixed;
    inset: 0;
    z-index: 10050;
    background: rgba(2, 6, 23, 0.97);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    opacity: 0;
    transition: opacity 0.25s ease;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}
.sgae-intro[hidden] { display: none !important; }
.sgae-intro.is-aberta { opacity: 1; }

body.sgae-intro-aberta { overflow: hidden; }

/* --sgae-intro-w: largura nativa do vídeo em px CSS (videoWidth / devicePixelRatio), definida no JS.
 * Nunca amplia além disso; só reduz quando a janela é menor. */
.sgae-intro__video {
    display: block;
    width: min(var(--sgae-intro-w, 1280px), 92vw, calc(84vh * 16 / 9));
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: #000;
    border-radius: 14px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.sgae-intro__acoes {
    position: absolute;
    right: clamp(1rem, 3vw, 2.5rem);
    bottom: clamp(1rem, 4vh, 2.5rem);
    z-index: 2;
    display: flex;
    gap: 0.75rem;
}

.sgae-intro__btn {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 1.4rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: #fff;
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 100px;
    cursor: pointer;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.sgae-intro__btn:hover,
.sgae-intro__btn:focus-visible {
    background: rgba(14, 165, 233, 0.45);
    border-color: rgba(56, 189, 248, 0.9);
    transform: translateY(-1px);
    outline: none;
}
.sgae-intro__btn[hidden] { display: none !important; }

@media (prefers-reduced-motion: reduce) {
    .sgae-intro { transition: none; }
}