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

/* Variables */
:root {
  --color--txt-primario: #000000;
  --color--txt-secundario: #ffffff;
  --color--fondo-primario: #000000;
  --color--fondo-secundario: #ffffff;
  --fs--txt-primario: 2rem;
  --fs--txt-secundario: 1.5rem;
  --fs--txt-terciario: 1rem;
  --fs--txt-detalles: 0.8rem;
}

/* Base */
html,
body {
  height: 100%;
  width: 100%;
  font-family: "Open Sans", sans-serif;
  background-color: var(--color--fondo-primario);
}

/* ==========================
   BARRA PRINCIPAL FIJA
========================== */
.barra {
  height: 80px;
  width: 100%;
  background-color: var(--color--fondo-secundario);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  top: 0px;
  left: 0px;
  padding: 0 40px;
  z-index: 1000;
  user-select: none;
}

.lado-izquierdo {
  display: flex;
  align-items: center;
  gap: 30px;
  user-select: none;
}

.logo-barra {
  width: 70px;
  height: 70px;
  user-select: none;
}

.txt-barra {
  font-size: var(--fs--txt-secundario);
  margin: 0;
  user-select: none;
}

.caja-txt {
  display: flex;
  gap: 25px;
  font-size: var(--fs--txt-terciario);
  cursor: pointer;
  text-decoration: none;
  color: var(--color--txt-primario);
  transition: opacity 0.2s ease;
}

.caja-txt a:hover {
  transform: scale(1.01);
  color: #181818;
  box-shadow: 0 0 10px rgba(233, 230, 230, 0.2);
}

#t {
  color: var(--color--txt-primario);
  text-decoration: none;
}

/* ==========================
   ZONA DE PRESENTACIÓN
========================== */
.zona-presentacion {
  height: 100vh;
  /* toda la ventana menos la barra */
  width: 100%;
  background-color: var(--color--fondo-primario);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  /* clave para posicionar absolutamente elementos hijos */
  overflow: hidden;
  padding-top: 80px;
}

/* Video */
.video1 {
  position: absolute;
  top: 80px;
  left: 0px;
  display: flex;
  width: 100%;
  height: 100%;
  object-fit: contain;
  z-index: 1;
}

/* Texto sobre el video */
.txt-presentacion {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color--txt-secundario);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-weight: bold;
  z-index: 3;
}

/* ==========================
   PALABRAS FLOTANTES
========================== */
.palabras-flotantes1 {
  position: absolute;
  top: 50%;
  /* centra verticalmente */
  left: 0;
  transform: translateY(-50%);
  width: 215px;
  display: flex;
  flex-direction: column;
  gap: 100px;
  justify-content: space-around;
  align-items: center;
  z-index: 2;
  background-color: transparent;
  cursor: default;

  user-select: none;
}

.palabras-flotantes2 {
  position: absolute;
  top: 50%;
  /* centrado vertical real */
  right: 0;
  transform: translateY(-50%);

  width: 215px;

  display: flex;
  flex-direction: column;
  gap: 100px;
  /* separación entre palabras */
  align-items: center;

  z-index: 2;
  background-color: transparent;
  cursor: default;
  user-select: none;
}

.palabra {
  font-size: var(--fs--txt-secundario);
  color: var(--color--txt-secundario);
  font-weight: bold;
  user-select: none;
  cursor: default;
}