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

html, body {
    height: 100%;
    font-family: 'Space Grotesk', sans-serif;
    background: #000;
}

/* =========================
   FAIXAS ANIMADAS
========================= */
.faixa {
    height: 48px;
    background: #0A4DA3;
    overflow: hidden;
    display: flex;
    align-items: center;
    position: fixed;
    width: 100%;
    z-index: 10;
}

.faixa.topo {
    top: 0;
}

.faixa.baixo {
    bottom: 0;
}

/* TEXTO DA FAIXA */
.marquee {
    display: flex;
    gap: 40px;
    white-space: nowrap;
    animation: marquee 16s linear infinite;
}

.marquee span {
    color: #F5C85B;
    font-weight: 600;
    letter-spacing: 4px;
    font-size: 14px;
    text-transform: uppercase;
}

@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* =========================
   HERO / FUNDO
========================= */
.hero {
    position: relative;
    height: 100vh;
    padding-top: 48px;
    padding-bottom: 48px;
    overflow: hidden;
}

/* FUNDO BASE */
.bg-base {
    position: absolute;
    inset: 0;
    background: #000;
    z-index: 1;
}

/* VÍDEO */
.bg-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.bg-video.show {
    opacity: 1;
}

/* =========================
   BOTÃO SOM NO RODAPÉ
========================= */
.sound-footer {
    position: fixed;
    bottom: 64px;
    left: 50%;
    transform: translateX(-50%);

    background: rgba(245, 200, 91, 0.25);
    border: 1px solid rgba(245, 200, 91, 0.6);

    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);

    color: #F5C85B;
    padding: 12px 24px;
    border-radius: 60px;

    font-size: 11px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;

    cursor: pointer;
    z-index: 20;

    box-shadow: 0 8px 30px rgba(0,0,0,0.35);
    transition: all 0.3s ease;
}

.sound-footer:hover {
    background: rgba(245, 200, 91, 0.4);
    transform: translateX(-50%) scale(1.05);
}

.sound-footer.hide {
    opacity: 0;
    pointer-events: none;
}

/* =========================
   MOBILE
========================= */
@media (max-width: 768px) {
    .marquee span {
        font-size: 12px;
        letter-spacing: 3px;
    }

    .sound-footer {
        font-size: 10px;
        letter-spacing: 2px;
        padding: 10px 20px;
        bottom: 60px;
    }
}