@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');
body{
    margin: 0;
    background-color: #000;
    color: #eee;
    font-family: Poppins;
    font-size: 12px;
    margin-top: 0px;

}

.container{
    padding-top: 0px;
}
header {
    margin-top: 0;
    background-color: #5927e5;
    /* color: #fff; */
    padding: 0px 15px;
    box-shadow: 7px 5px 30px rgb(0, 0, 0);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header img {
    height: 60px; /* Reduced height of the logo */
    display: flex;
    justify-content: center;
    
}


nav {
    display: block;
}

nav ul {
    display: flex;
    list-style-type: none;
    padding: 0;
    margin: 0;
    gap: 15px; /* Reduced the gap between menu items */
    justify-content: right;
}

nav li {
    display: inline-block;
}

nav li a {
    color: whitesmoke;
    font-size: 14px; /* Smaller font size for the links */
    text-decoration: none;
}

nav li a:hover {
    color: #fff; /* Optional: Change color on hover */
}

.carousel{
    height: 100vh;
    margin-top: 0px;
    width: 100vw;
    overflow: hidden;
    position: relative;
}
.carousel .list .item{
    width: 100%;
    height: 100%;
    position: absolute;
    inset: 0 0 0 0;
}
.carousel .list .item img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.carousel .list .item .content{
    position: absolute;
    top: 20%;
    width: 1140px;
    max-width: 80%;
    left: 45%;
    transform: translateX(-50%);
    padding-right: 30%;
    box-sizing: border-box;
    color: #fff;
    text-shadow: 0 5px 10px #0004;
}
.carousel .list .item .author{
    font-weight: bold;
    letter-spacing: 10px;
}
.carousel .list .item .title,
.carousel .list .item .topic{
    font-size: 5em;
    font-weight: bold;
    line-height: 1.3em;
}
.carousel .list .item .topic{
    color: #f1683a;
}
/* General Button Styling for Both Buttons Inside Anchor Tags and Outside */
.carousel .list .item .buttons button,
.carousel .list .item .buttons a button {
    border: none;
    background-color: #107299b6;
    letter-spacing: 2px;
    font-family: Poppins;
    font-weight: 500;
    width: 240px; /* Fixed width to align both sets of buttons */
    height: 40px; /* Set height to match */
    display: flex;
    justify-content: center;
    align-items: center;
}

.carousel .list .item .buttons a button {
    /* Apply styles to the button inside anchor tags */
    background-color: #eee;
}
/* General Styling for Buttons */
.btn {
    transition: all 0.3s ease;  /* Smooth transition for hover and focus */
    border-radius: 8px;         /* Rounded corners for a smoother look */
    font-weight: bold;          /* Bold text for better readability */
}

.btn-primary {
    background-color: #007bff; /* Primary button background color */
    border-color: #007bff;     /* Border color to match the background */
}

.btn-outline-secondary {
    color: #6c757d;            /* Text color for the outline button */
    border-color: #6c757d;     /* Border color for the outline button */
}

.btn-primary:hover, .btn-outline-secondary:hover {
    opacity: 0.9;              /* Slight transparency on hover */
}

.btn-primary:focus, .btn-outline-secondary:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.5); /* Focus ring with primary color */
}

/* Button Layout and Spacing */
.buttons {
    margin-top: 20px;           /* Adds some top space for the buttons */
}

.buttons a {
    text-decoration: none;      /* Removes the underline from links */
}

/* Responsive Layout Adjustments */
@media (max-width: 767px) {
    .btn {
        width: 100%;  /* Make buttons full width on mobile */
    }
}

@media (min-width: 768px) {
    .btn {
        width: auto;  /* Auto width on larger screens (desktop, tablet) */
    }
}


.carousel .list .item .buttons a button:nth-child(2) {
    background-color: transparent;
    border: 1px solid #fff;
    color: #eee;
}

.carousel .list .item .buttons {
    display: grid;
    grid-template-columns: repeat(2, 240px);
    grid-template-rows: 40px;
    gap: 5px;
    margin-top: 20px;
}

.thumbnail{
    position: absolute;
    bottom: 50px;
    left: 50%;
    width: max-content;
    z-index: 100;
    display: flex;
    gap: 20px;
}
.thumbnail .item{
    width: 150px;
    height: 220px;
    flex-shrink: 0;
    position: relative;
    
}
.thumbnail .item img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}
.thumbnail .item .content{
    color: #fff;
    position: absolute;
    bottom: 10px;
    left: 10px;
    right: 10px;
}
.thumbnail .item .content .title{
    font-weight: 500;
}
.thumbnail .item .content .description{
    font-weight: 200;

}

.arrows{
    position: absolute;
    top: 80%;
    right: 52%;
    z-index: 100;
    width: 300px;
    max-width: 30%;
    display: flex;
    gap: 10px;
    align-items: center;
}
.arrows button{
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #eee4;
    border: none;
    color: #fff;
    font-family: monospace;
    font-weight: bold;
    transition: .5s;
}
.arrows button:hover{
    background-color: #fff;
    color: #000;
}

.carousel .list .item:nth-child(1){
    z-index: 1;
}

.carousel .list .item:nth-child(1) .content .author,
.carousel .list .item:nth-child(1) .content .title,
.carousel .list .item:nth-child(1) .content .topic,
.carousel .list .item:nth-child(1) .content .des,
.carousel .list .item:nth-child(1) .content .buttons
{
    transform: translateY(50px);
    filter: blur(20px);
    opacity: 0;
    animation: showContent .5s 1s linear 1 forwards;
}
@keyframes showContent{
    to{
        transform: translateY(0px);
        filter: blur(0px);
        opacity: 1;
    }
}
.carousel .list .item:nth-child(1) .content .title{
    animation-delay: 1.0s!important;
}
.carousel .list .item:nth-child(1) .content .topic{
    animation-delay: 1.2s!important;
}
.carousel .list .item:nth-child(1) .content .des{
    animation-delay: 1.4s!important;
}
.carousel .list .item:nth-child(1) .content .buttons{
    animation-delay: 1.5s!important;
}
.carousel.next .list .item:nth-child(1) img{
    width: 150px;
    height: 220px;
    position: absolute;
    bottom: 50px;
    left: 50%;
    border-radius: 30px;
    animation: showImage .5s linear 1 forwards;
}
@keyframes showImage{
    to{
        bottom: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border-radius: 0;
    }
}

.carousel.next .thumbnail .item:nth-last-child(1){
    overflow: hidden;
    animation: showThumbnail .5s linear 1 forwards;
}
.carousel.prev .list .item img{
    z-index: 100;
}
@keyframes showThumbnail{
    from{
        width: 0;
        opacity: 0;
    }
}
.carousel.next .thumbnail{
    animation: effectNext .5s linear 1 forwards;
}

@keyframes effectNext{
    from{
        transform: translateX(150px);
    }
}


.carousel .time{
    position: absolute;
    z-index: 1000;
    width: 0%;
    height: 3px;
    background-color: #f1683a;
    left: 0;
    top: 0;
}

.carousel.next .time,
.carousel.prev .time{
    animation: runningTime 3s linear 1 forwards;
}
@keyframes runningTime{
    from{ width: 100%}
    to{width: 0}
}
.carousel.prev .list .item:nth-child(2){
    z-index: 2;
}

.carousel.prev .list .item:nth-child(2) img{
    animation: outFrame 0.5s linear 1 forwards;
    position: absolute;
    bottom: 0;
    left: 0;
}
@keyframes outFrame{
    to{
        width: 150px;
        height: 220px;
        bottom: 50px;
        left: 50%;
        border-radius: 20px;
    }
}

.carousel.prev .thumbnail .item:nth-child(1){
    overflow: hidden;
    opacity: 0;
    animation: showThumbnail .5s linear 1 forwards;
}
.carousel.next .arrows button,
.carousel.prev .arrows button{
    pointer-events: none;
}
.carousel.prev .list .item:nth-child(2) .content .author,
.carousel.prev .list .item:nth-child(2) .content .title,
.carousel.prev .list .item:nth-child(2) .content .topic,
.carousel.prev .list .item:nth-child(2) .content .des,
.carousel.prev .list .item:nth-child(2) .content .buttons
{
    animation: contentOut 1.5s linear 1 forwards!important;
}

@keyframes contentOut{
    to{
        transform: translateY(-150px);
        filter: blur(20px);
        opacity: 0;
    }
}
@media screen and (max-width: 678px) {
    .carousel .list .item .content{
        padding-right: 0;
    }
    .carousel .list .item .content .title{
        font-size: 30px;
    }
}
/* -------------------------------
   Button Styles
---------------------------------*/
/* Override for both Access Papers and Home Page buttons */
.btn-primary,
.btn-outline-secondary,
button.btn {
  position: relative; /* For pseudo-element animations */
  overflow: hidden;
  background-color: #f1683a !important;
  color: #fff !important;
  border: none !important;
  /* Establish a 3D space for transformation */
  transform: perspective(1000px);
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55),
              box-shadow 0.4s ease;
  animation: buttonFadeIn 0.8s ease forwards, buttonPulse 3s infinite;
}

/* Hover effect: scale up, tilt, and add depth with a 3D effect */
.btn-primary:hover,
.btn-outline-secondary:hover,
button.btn:hover {
  transform: perspective(1000px) scale(1.15) rotateX(5deg) translateZ(10px);
  box-shadow: 0 15px 30px rgba(241, 104, 58, 0.5);
}

/* Active state: slightly shrink for a tactile press effect */
.btn-primary:active,
.btn-outline-secondary:active,
button.btn:active {
  transform: perspective(1000px) scale(0.95);
  box-shadow: 0 5px 10px rgba(241, 104, 58, 0.3);
}

/* Pseudo-element for a shimmer animation on hover */
.btn-primary::before,
.btn-outline-secondary::before,
button.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transform: skewX(-25deg);
  transition: left 0.5s ease;
}

/* Animate the shimmer from left to right on hover */
.btn-primary:hover::before,
.btn-outline-secondary:hover::before,
button.btn:hover::before {
  left: 100%;
}

/* -------------------------------
   Carousel Arrow Styles
---------------------------------*/
.arrows button {
  width: 70px;
  height: 70px;
  background-color: #f1683a;
  border: none;
  font-size: 2.2rem;
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              background-color 0.4s ease,
              border-radius 0.4s ease;
  animation: arrowFadeIn 1s ease forwards, arrowPulse 2.5s infinite;
}

/* Hover effect on arrows: scale up, rotate slightly, and enhance the glow */
.arrows button:hover {
  transform: scale(1.35) rotate(10deg);
  box-shadow: 0 10px 30px rgba(241, 104, 58, 0.8);
  background-color: #d95c37;
}

/* -------------------------------
   Keyframes Animations
---------------------------------*/
/* Fade-in effect for buttons */
@keyframes buttonFadeIn {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Continuous pulse glow effect on buttons */
@keyframes buttonPulse {
  0%, 100% {
    box-shadow: 0 0 0 rgba(241, 104, 58, 0.4);
  }
  50% {
    box-shadow: 0 0 20px rgba(241, 104, 58, 0.8);
  }
}

/* Fade-in effect for arrows on load */
@keyframes arrowFadeIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Continuous pulsing effect for arrows with subtle rotation oscillation */
@keyframes arrowPulse {
  0%, 100% {
    transform: scale(1) rotate(-2deg);
  }
  50% {
    transform: scale(1.1) rotate(2deg);
  }
}