:root {
  --body-bg-color:                #181717;
  --white-color:                  #ffffff;
  --primary-color:                #E07A5F;
  --secondary-color:              #F2CC8F;
  --section-bg-color:             #f0f8ff;
  --custom-btn-bg-color:          #E07A5F;
  --custom-btn-bg-hover-color:    #F2CC8F;
  --dark-color:                   #000000;
  --p-color:                      #717275;
  --link-hover-color:             #F2CC8F;

  --body-font-family:             'Inter', sans-serif;
  --heading-font-family:          'Unbounded', sans-serif;

  --h1-font-size:                 62px;
  --h2-font-size:                 36px;
  --h3-font-size:                 28px;
  --h4-font-size:                 24px;
  --h5-font-size:                 22px;
  --h6-font-size:                 20px;
  --p-font-size:                  18px;
  --menu-font-size:               16px;
  --btn-font-size:                14px;

  --border-radius-large:          100px;
  --border-radius-medium:         20px;
  --border-radius-small:          10px;

  --font-weight-normal:           400;
  --font-weight-medium:           500;
  --font-weight-bold:             700;
  scroll-behavior: smooth;
}

body {
  background-color: var(--body-bg-color);
  font-family: var(--body-font-family); 
}

.underline {
  border-bottom: 1px solid white;
  flex-grow: 1;
  margin: 0 10px;
}

/*---------------------------------------
  API DE PROGRAMACIÓN
-----------------------------------------*/
.types-section {
  background-image: linear-gradient(#181717, #383636);
  background-repeat: no-repeat;
  background-size: cover;
}

.types-block-wrap {
  background: rgba(0, 0, 0, 0.65);
  border-radius: var(--border-radius-medium);
  padding: 45px;
}

.types-block .border-top {
  border-top-color: rgba(255, 255, 255, 0.35) !important;
}

.types-block h6 {
  color: var(--white-color);
}

.types-block small {
  color: rgba(255, 255, 255, 0.35);
}

.types-block strong {
  color: var(--secondary-color);
}

.types-block-image {
  border-radius: 100%;
  width: 350px;
  height: 350px;
  object-fit: cover;
  display: block;
  margin: auto;
  cursor: pointer;
}

/*---------------------------------------
  TYPOGRAPHY               
-----------------------------------------*/
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--heading-font-family);
  font-weight: var(--font-weight-medium);
  letter-spacing: -1px;
}

h1 {
  font-size: var(--h1-font-size);
  font-weight: var(--font-weight-bold);
}

h2 {
  font-size: var(--h2-font-size);
  font-weight: var(--font-weight-bold);
}

h3 {
  font-size: var(--h3-font-size);
}

h4 {
  font-size: var(--h4-font-size);
}

h5 {
  font-size: var(--h5-font-size);
}

h6 {
  font-size: var(--h6-font-size);
}

p {
  color: var(--p-color);
  font-size: var(--p-font-size);
  font-weight: var(--font-weight-normal);
}

ul li {
  color: var(--p-color);
  font-size: var(--p-font-size);
  font-weight: var(--font-weight-normal);
}

a, 
button {
  touch-action: manipulation;
  transition: all 0.3s;
}

a {
  display: inline-block;
  color: var(--secondary-color);
  text-decoration: none;
}

a:hover {
  color: var(--link-hover-color);
}

b,
strong {
  font-weight: var(--font-weight-bold);
}


/*---------------------------------------
  SECTION               
-----------------------------------------*/
.section-bg {
  background-color: var(--section-bg-color);
}

.section-padding {
  padding-top: 100px;
  padding-bottom: 100px;
}

::selection {
  background-color: var(--primary-color);
  color: var(--white-color);
}

.page-404-title {
  color: var(--primary-color);
  font-size: 50px;
}

.page-404-title + h3 {
  color: var(--secondary-color);
}

/*---------------------------------------
  CUSTOM BUTTON               
-----------------------------------------*/
.custom-btn {
  background: var(--custom-btn-bg-color);
  border: 2px solid transparent;
  border-radius: var(--border-radius-large);
  color: var(--white-color);
  font-size: var(--btn-font-size);
  font-weight: var(--font-weight-bold);
  line-height: normal;
  transition: all 0.3s;
  padding: 6px 18px;
}

.custom-btn:hover {
  background: var(--custom-btn-bg-hover-color);
  color: var(--white-color);
}

.custom-border-btn {
  background: transparent;
  border: 2px solid var(--secondary-color);
  color: var(--secondary-color);
}

.custom-border-btn:hover {
  background: var(--secondary-color);
  border-color: transparent;
  color: var(--white-color);
}

.custom-btn-bg-white {
  border-color: var(--white-color);
  color: var(--white-color);
}

.custom-btn-group .link {
  color: var(--white-color);
  font-weight: var(--font-weight-medium);
}

.custom-btn-group .link:hover {
  color: var(--link-hover-color);
}


/*---------------------------------------
  SITE HEADER        
-----------------------------------------*/
.site-header {
  position: absolute;
  z-index: 22;
  top: 0;
  right: 0;
  left: 0;
  padding-top: 30px;
  padding-bottom: 30px;
}

.site-header {
  transition: transform 0.3s ease-in-out;
}

.site-header.hidden {
  transform: translateY(-100%);
}
.site-header .container {
  background-color: rgba(0, 0, 0, 0.65);
  border-radius: var(--border-radius-large);
  padding: 15px 25px;
  max-height: 70px;
}

.site-header-text {
  color: var(--white-color);
  font-size: var(--p-font-size);
  font-weight: var(--font-weight-bold);
}

.site-header-text span {
  margin-left: 10px;
}

.site-header .social-icon {
  max-height: 35px;
}

.offcanvas {
  background-color: rgba(0, 0, 0, 0.85);
  padding: 30px;
}

.offcanvas.offcanvas-end {
  border-left: 0;
}

.offcanvas-header .btn-close {
  filter: brightness(0) invert(1);
  transition: all 0.3s;
}

.offcanvas-header .btn-close:hover {
  transform: rotate(180deg);
}

.offcanvas-icon {
  font-size: var(--h3-font-size);
  color: var(--white-color);
  margin-left: 15px;
}

.offcanvas nav ul {
  margin: 0;
  padding: 0;
}

.offcanvas nav ul li {
  list-style: none;
  display: block;
}

.offcanvas nav ul li a {
  color: var(--white-color);
  font-family: var(--heading-font-family);
  font-size: var(--p-font-size);
  font-weight: var(--font-weight-medium);
  display: inline-block;
  margin-top: 5px;
  margin-bottom: 5px;
}

.offcanvas nav ul li a:hover,
.offcanvas nav ul li a.active {
  color: var(--link-hover-color);
}


/*---------------------------------------
  HERO        
-----------------------------------------*/
.hero-section {
  position: relative;
  overflow: hidden;
  height: 100vh;
  min-height: 675px;
  padding-top: 100px;
  padding-bottom: 100px;
}

.hero-bg {
  background-image: url('../images/people-practicing-social-integration.jpg');
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.hero-bg::after {
  content: "";
  background: linear-gradient(to top, var(--dark-color), transparent 200%);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-bg .container {
  position: relative;
  z-index: 2;
}

.hero-section small {
  color: var(--primary-color);
  display: block;
  font-size: var(--btn-font-size);
  font-style: italic;
  position: relative;
  padding-left: 75px;
}

.hero-section small::before {
  content: "";
  background-color: var(--white-color);
  width: 50px;
  height: 2px;
  position: absolute;
  top: 50%;
  left: 35px;
  transform: translate(-50%, 0);
}

.video-wrap {
  z-index: -100;
}

.custom-video {
  position: absolute;
  top: 0;
  left: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
}

.hero-title {
  color: var(--white-color);
}




/*---------------------------------------
  SOCIAL ICON               
-----------------------------------------*/
.social-icon {
  margin: 0;
  padding: 0;
}

.social-icon-item {
  list-style: none;
  display: inline-block;
  vertical-align: top;
}

.social-icon-link {
  border-radius: var(--border-radius-large);
  color: var(--white-color);
  font-size: var(--btn-font-size);
  display: block;
  margin-right: 5px;
  text-align: center;
  width: 35px;
  height: 35px;
  line-height: 36px;
  transition: background 0.2s, color 0.2s;
}

.social-icon-link:hover {
  background: var(--primary-color);
  color: var(--white-color);
}

/*---------------------------------------
  ¿QUÉ ES?           
-----------------------------------------*/
.about-section {
  position: relative;
}

.about-section .ratio {
  border-radius: var(--border-radius-medium);
}

.custom-video {
  border-radius: var(--border-radius-medium);
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-image-wrap {
  border-radius: var(--border-radius-medium);
  position: relative;
  overflow: hidden;
}

.about-video-info {
  background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.35), rgb(195, 171, 116));
  border-radius: var(--border-radius-medium);
  bottom: 0;
  height: auto;
  padding: 40px;
}

.about-video-info h4 {
  color: var(--white-color);
}

.about-section h6 {
  color: var(--secondary-color);
}
/*---------------------------------------
  TIPOS DE ARDUINO     
-----------------------------------------*/
.types-section {
  background-image: url(../images/bg-tipos.jpg);
  background-repeat: no-repeat;
  background-size: cover;
}

/* Estilo para las tarjetas que giran */
.wrap{
  width: 70vw;
  margin: auto;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.tarjeta-wrap{
  margin: 1vw;
  -webkit-perspective: 800;
  perspective: 800;
}

.tarjeta{
  width: 25vw;
  height: 30vh;
  background: rgba(0, 0, 0, 0.644);
  color: #f5f5f5;
  position: relative;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transition: .7s ease;
  transition: .7s ease;
  -webkit-box-shadow: 0px 10px 15px -5px rgba(0,0,0,0.65);
  box-shadow: 0px 10px 15px -5px rgba(0,0,0,0.65);
  border-radius: 0.5rem;
}

.adelante, .atras{
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.adelante{
  width: 100%;
  padding: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  font-weight: 400;
  font-size: 1.5vw;
}

.atras{
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);

  padding: 1rem;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  
  text-align: center;
  background: #bcedb4ad;
  border-radius: 0.5rem;
}

.atras p {
  color: #000000;
  font-size: 1.2vw;
}

.tarjeta .adelante {
  font-family: var(--heading-font-family);
}

.tarjeta-wrap:hover .tarjeta{
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}

/*---------------------------------------
  FOOTER | CRÉDITOS
-----------------------------------------*/
.logo-container {
  display: inline-block;
  vertical-align: middle;
  margin-left: 5px; 
}

.logo {
  width: 3.5rem; 
  height: auto; 
}

/*---------------------------------------
  ACCESORIOS, SHIELDS, SENSORES, ETC.    
-----------------------------------------*/

.floating {  
  animation-name: floating;
  animation-duration: 3s;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
  margin-left: 30px;
  margin-top: 5px;
}

@keyframes floating {
  0% { transform: translate(0,  0px); }
  50%  { transform: translate(0, 15px); }
  100%   { transform: translate(0, -0px); }    
}

.card.bg-dark:hover{
  border: thin solid #d6d6d6;
  box-shadow: 2px 2px 15px 0px  #d6d6d677;
}
.close-btn {
  background-color: #ececec;
  position: absolute;
  top: 0;
  right: 0;
}

.card {
  width: 320px;
}
.card-img {
  padding-top: 1rem;
  width: auto;
  height: auto;
}

#accesorios {
  padding-top: 2.5rem;
}
/*---------------------------------------
  RESPONSIVE STYLES               
-----------------------------------------*/
@media screen and (max-width: 991px) {
  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 28px;
  }

  h3 {
    font-size: 22px;
  }

  h4 {
    font-size: 20px;
  }

  h5 {
    font-size: 18px;
  }

  h6 {
    font-size: 16px;
  }

  .section-padding {
    padding-top: 50px;
    padding-bottom: 50px;
  }
}

@media screen and (max-width: 480px) {
  .site-header .social-icon {
    display: none !important;
  }

  .offcanvas-icon {
    margin-left: 10px;
  }

  .countdown-item {
    margin: 10px;
  }
}