/* =========================================
   NUESTRO BLOG - BISONTT
========================================= */

:root{
  --nb-bg: #030711;
  --nb-bg-2: #07101b;
  --nb-text: #ffffff;
  --nb-muted: rgba(255,255,255,.75);
  --nb-line: rgba(255,255,255,.08);
  --nb-accent: #89ff00;        /* verde principal */
  --nb-accent-2: #5ecb00;      /* verde más oscuro */
  --nb-shadow: rgba(137,255,0,.22);
}

.nb-section{
  position: relative;
  overflow: hidden;
  width: 100%;
  padding: 70px 0 40px;
  background: var(--nb-bg);
  color: var(--nb-text);
  font-family: Arial, sans-serif;
}

.nb-bg{
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(137,255,0,.10), transparent 24%),
    radial-gradient(circle at 85% 30%, rgba(137,255,0,.08), transparent 28%),
    linear-gradient(180deg, #020611 0%, #050c16 45%, #020611 100%);
  z-index: 1;
}

.nb-bg::before{
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .5;
  mask-image: radial-gradient(circle at center, black 30%, transparent 78%);
}

.nb-container{
  position: relative;
  z-index: 2;
  width: min(1450px, 94%);
  margin: auto;
}

/* Encabezado */

.nb-header{
  text-align: center;
  max-width: 760px;
  margin: 0 auto 28px;
}

.nb-mini{
  display: inline-block;
  margin-bottom: 8px;
  color: var(--nb-accent);
  font-size: 15px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  position: relative;
}

.nb-mini::before,
.nb-mini::after{
  content: "/////";
  color: rgba(255,255,255,.18);
  letter-spacing: 2px;
  margin: 0 10px;
}

.nb-header h2{
  margin: 0;
  font-size: clamp(42px, 5vw, 82px);
  line-height: .9;
  text-transform: uppercase;
  font-weight: 1000;
  font-style: italic;
  letter-spacing: -2px;
}

.nb-header h2 span{
  color: var(--nb-accent);
  text-shadow: 0 0 18px var(--nb-shadow);
}

.nb-header p{
  max-width: 560px;
  margin: 10px auto 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--nb-muted);
}

/* Área slider */

.nb-slider-wrap{
  position: relative;
  margin-top: 16px;
  padding: 0 52px;
}

.nb-slider{
  position: relative;
  height: 430px;
  overflow: hidden;
  perspective: 1600px;
}

.nb-track{
  position: relative;
  width: 100%;
  height: 100%;
}

/* Slides */

.nb-slide{
  position: absolute;
  top: 12px;
  left: 50%;
  width: min(25%, 250px);
  height: 340px;
  transform-style: preserve-3d;
  transition:
    transform .65s cubic-bezier(.22,.61,.36,1),
    opacity .45s ease,
    filter .45s ease,
    z-index .2s ease;
  opacity: 0;
  pointer-events: none;
}

.nb-slide-inner{
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.08);
  background: #000;
  transform: skewX(-9deg);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.03),
    0 18px 40px rgba(0,0,0,.35);
}

.nb-slide-bg,
.nb-slide-bg img,
.nb-slide-overlay{
  position: absolute;
  inset: 0;
}

.nb-slide-bg img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: skewX(9deg) scale(1.12);
  transform-origin: center;
  filter: brightness(.50) contrast(1.08);
}

.nb-slide-overlay{
  background:
    linear-gradient(180deg, rgba(0,0,0,.20) 0%, rgba(0,0,0,.48) 48%, rgba(0,0,0,.82) 100%),
    linear-gradient(90deg, rgba(3,7,17,.78) 0%, rgba(3,7,17,.34) 45%, rgba(3,7,17,.55) 100%);
}

.nb-slide-content{
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 28px 22px 24px;
  z-index: 3;
  transform: skewX(9deg);
}

.nb-cat{
  display: inline-block;
  margin-bottom: 8px;
  color: var(--nb-accent);
  font-size: 11px;
  font-weight: 1000;
  text-transform: uppercase;
}

.nb-slide-content h3{
  margin: 0;
  font-size: clamp(19px, 1.35vw, 28px);
  line-height: 1;
  text-transform: uppercase;
  font-weight: 1000;
  color: #ffffff;
}

.nb-slide-content p{
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.45;
  color: rgba(255,255,255,.82);
  max-width: 220px;
}

.nb-btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 16px;
  padding: 8px 15px;
  border-radius: 50px;
  text-decoration: none;
  font-size: 12px;
  font-weight: 900;
  color: #fff;
  border: 1px solid rgba(137,255,0,.6);
  background: rgba(137,255,0,.10);
  transition: .3s ease;
}

.nb-btn:hover{
  background: var(--nb-accent);
  color: #031008;
  box-shadow: 0 0 20px var(--nb-shadow);
}

/* Estados dinámicos */

.nb-slide.is-active{
  opacity: 1;
  z-index: 6;
  pointer-events: auto;
  width: min(26%, 270px);
  height: 360px;
}

.nb-slide.is-active .nb-slide-inner{
  border-color: rgba(137,255,0,.38);
  box-shadow:
    0 0 30px rgba(137,255,0,.14),
    0 25px 40px rgba(0,0,0,.45);
}

.nb-slide.is-active .nb-slide-bg img{
  filter: brightness(.62) contrast(1.08);
}

.nb-slide.is-prev-1,
.nb-slide.is-next-1,
.nb-slide.is-prev-2,
.nb-slide.is-next-2{
  opacity: 1;
  pointer-events: auto;
}

.nb-slide.is-prev-1{
  z-index: 5;
  transform: translateX(-185%) rotateY(28deg) scale(.94);
}

.nb-slide.is-next-1{
  z-index: 5;
  transform: translateX(85%) rotateY(-28deg) scale(.94);
}

.nb-slide.is-prev-2{
  z-index: 4;
  transform: translateX(-280%) rotateY(38deg) scale(.86);
  opacity: .72;
}

.nb-slide.is-next-2{
  z-index: 4;
  transform: translateX(180%) rotateY(-38deg) scale(.86);
  opacity: .72;
}

.nb-slide.is-active{
  transform: translateX(-50%) rotateY(0deg) scale(1);
}

/* botones nav */

.nb-nav{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 15;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
  background: rgba(3,7,17,.88);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: .3s ease;
}

.nb-nav:hover{
  border-color: rgba(137,255,0,.5);
  color: var(--nb-accent);
  box-shadow: 0 0 20px var(--nb-shadow);
}

.nb-prev{ left: 0; }
.nb-next{ right: 0; }

/* dots */

.nb-dots{
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}

.nb-dot{
  width: 9px;
  height: 9px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,.24);
  cursor: pointer;
  transition: .3s ease;
}

.nb-dot.active{
  width: 26px;
  border-radius: 50px;
  background: var(--nb-accent);
  box-shadow: 0 0 16px var(--nb-shadow);
}

/* Animación de entrada */

.nb-header,
.nb-slider-wrap,
.nb-dots{
  opacity: 0;
  transform: translateY(35px);
  transition: .8s ease;
}

.nb-section.nb-active .nb-header,
.nb-section.nb-active .nb-slider-wrap,
.nb-section.nb-active .nb-dots{
  opacity: 1;
  transform: translateY(0);
}

.nb-section.nb-active .nb-slider-wrap{ transition-delay: .15s; }
.nb-section.nb-active .nb-dots{ transition-delay: .28s; }

/* Responsive */

@media (max-width: 1200px){
  .nb-slider{
    height: 390px;
  }

  .nb-slide,
  .nb-slide.is-active{
    width: 260px;
  }

  .nb-slide.is-prev-1{
    transform: translateX(-155%) rotateY(24deg) scale(.92);
  }

  .nb-slide.is-next-1{
    transform: translateX(55%) rotateY(-24deg) scale(.92);
  }

  .nb-slide.is-prev-2{
    transform: translateX(-235%) rotateY(30deg) scale(.82);
  }

  .nb-slide.is-next-2{
    transform: translateX(135%) rotateY(-30deg) scale(.82);
  }
}

@media (max-width: 900px){
  .nb-slider-wrap{
    padding: 0 45px;
  }

  .nb-slider{
    height: 350px;
  }

  .nb-slide,
  .nb-slide.is-active{
    width: 230px;
    height: 320px;
  }

  .nb-slide.is-active{
    height: 330px;
  }

  .nb-slide.is-prev-2,
  .nb-slide.is-next-2{
    display: none;
  }

  .nb-slide.is-prev-1{
    transform: translateX(-145%) rotateY(22deg) scale(.88);
    opacity: .8;
  }

  .nb-slide.is-next-1{
    transform: translateX(45%) rotateY(-22deg) scale(.88);
    opacity: .8;
  }

  .nb-slide-content{
    padding: 24px 18px 20px;
  }
}

@media (max-width: 640px){
  .nb-section{
    padding: 55px 0 30px;
  }

  .nb-header h2{
    font-size: 42px;
    letter-spacing: -1px;
  }

  .nb-header p{
    font-size: 13px;
  }

  .nb-slider-wrap{
    padding: 0 40px;
  }

  .nb-slider{
    height: 330px;
  }

  .nb-slide,
  .nb-slide.is-active{
    width: calc(100% - 14px);
    max-width: 300px;
    height: 300px;
  }

  .nb-slide.is-active{
    height: 300px;
  }

  .nb-slide.is-prev-1,
  .nb-slide.is-next-1{
    opacity: 0;
    pointer-events: none;
  }

  .nb-slide.is-active{
    transform: translateX(-50%) scale(1);
  }

  .nb-nav{
    width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .nb-slide-content h3{
    font-size: 22px;
  }

  .nb-slide-content p{
    max-width: 100%;
  }
}

@media (max-width: 425px){
  .nb-container{
    width: 92%;
  }

  .nb-mini{
    font-size: 12px;
  }

  .nb-header h2{
    font-size: 36px;
  }

  .nb-slider-wrap{
    padding: 0 34px;
  }

  .nb-slide-content{
    padding: 20px 15px 18px;
  }

  .nb-slide-content h3{
    font-size: 19px;
  }

  .nb-slide-content p{
    font-size: 11px;
  }

  .nb-btn{
    font-size: 11px;
    padding: 8px 14px;
  }
}