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

.seccion1{
    width: 100%;
	height: 100vh;
    background-color: black;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
}

.contenedorSeccion1{
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
}

video{
    width: 85%;
    height: auto;
}

/* BOTÓN */
.btn-video{
    padding: 14px 28px;
    font-size: 1.1rem;
    font-weight: bold;
    background: #ffb300;
    color: #000;
    border: none;
    border-radius: 40px;
    cursor: pointer;

    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

/* visible */
.btn-video.activo{
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    -webkit-animation: heartbeat 1.5s ease-in-out infinite both;
	        animation: heartbeat 1.5s ease-in-out infinite both;
}


.sound-overlay{
    position: absolute;
    top: 85%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,0.75);
    color: #fff;
    padding: 14px 22px;
    border-radius: 40px;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    z-index: 10;
    animation: pulse 1.6s infinite;
	min-width: 200px;
	text-align:center;
	text-wrap: nowrap;
	color: #ff1212;
}

/* Animación sutil */
@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.05); }
    100% { transform: translate(-50%, -50%) scale(1); }
}


@-webkit-keyframes heartbeat {
  from {
    -webkit-transform: scale(1);
            transform: scale(1);
    -webkit-transform-origin: center center;
            transform-origin: center center;
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
  }
  10% {
    -webkit-transform: scale(0.91);
            transform: scale(0.91);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  17% {
    -webkit-transform: scale(0.98);
            transform: scale(0.98);
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
  }
  33% {
    -webkit-transform: scale(0.87);
            transform: scale(0.87);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  45% {
    -webkit-transform: scale(1);
            transform: scale(1);
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
  }
}
@keyframes heartbeat {
  from {
    -webkit-transform: scale(1);
            transform: scale(1);
    -webkit-transform-origin: center center;
            transform-origin: center center;
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
  }
  10% {
    -webkit-transform: scale(0.91);
            transform: scale(0.91);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  17% {
    -webkit-transform: scale(0.98);
            transform: scale(0.98);
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
  }
  33% {
    -webkit-transform: scale(0.87);
            transform: scale(0.87);
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
  45% {
    -webkit-transform: scale(1);
            transform: scale(1);
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
  }
}