body { background:#eee; font-family: helvetica neue,Helvetica,Roboto,Arial,sans-serif; margin:50px 5% 0 5%; font-size:12px; font-weight:400; line-height:1.3; padding:0; position:relative; }
a { color:navy; text-decoration:underline; font-weight:400; }
a:hover { text-decoration:underline;font-weight:750; }
p { margin:6px 0 6px 0; }
.footer a { color:#fff; text-decoration:none; }
.footer a:hover { text-decoration:underline; }
.oa {
	font-size:12px;
	background:green;
	color:#fff;
	padding:3px 5px 3px 5px;
	margin:0 17px 0 0;
}
.atip {
	font-size:14px;
	/*background:blue;*/
	/*background:#E01B24;*/
	color:#444;
	padding:3px 5px 3px 5px;
}
.atitle {
	font-size:13px;
	line-height: 1.3em;
	font-weight:500;
	color:#222;
	margin:0 0 10px 0;
}
.authors {
	font-size:12px;
	color:#444;
}
.ajid {
	font-size:12px;
	color:#666;
}
.abstract {
	font-size:12x;
	color:#111;
	padding:0 0 22px 0;
	border-bottom:1px solid #ddd;
	margin:0 0 22px 0;
}

.atips {
	font-size:11px;
	color:brown;
}
.atitles {
	font-size:12px;
	font-weight:bold;
	color:#222;
}
.authorss {
	font-size:11px;
	color:#111;
}
.ajids {
	font-size:11px;
	color:#555;
}

/* CUSTOMIZE THE CAROUSEL
-------------------------------------------------- */
.foutline {
  text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
}

.carousel {
  position: relative;
  border:1px solid #ddd;
}

.carousel.pointer-event {
  touch-action: pan-y;
}

.carousel-inner {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.carousel-inner::after {
  display: block;
  clear: both;
  content: "";
}

.carousel-item {
  position: relative;
  display: none;
  float: left;
  width: 100%;
  max-height: 250px;
  margin-right: -100%;
  -webkit-backface-visibility: hidden;
          backface-visibility: hidden;
  transition: transform 0.6s ease-in-out;
}
@media (prefers-reduced-motion: reduce) {
  .carousel-item {
    transition: none;
  }
}

.carousel-item.active,
.carousel-item-next,
.carousel-item-prev {
  display: block;
}

.carousel-item-prev:not(.carousel-item-end),
.active.carousel-item-start {
  transform: translateX(-100%);
}

/* rtl:end:ignore */
.carousel-fade .carousel-item {
  opacity: 0;
  transition-property: opacity;
  transform: none;
}
.carousel-fade .carousel-item.active,
.carousel-fade .carousel-item-next.carousel-item-start,
.carousel-fade .carousel-item-prev.carousel-item-end {
  z-index: 1;
  opacity: 1;
}
.carousel-fade .active.carousel-item-start,
.carousel-fade .active.carousel-item-end {
  z-index: 0;
  opacity: 0;
  transition: opacity 0s 0.6s;
}
@media (prefers-reduced-motion: reduce) {
  .carousel-fade .active.carousel-item-start,
.carousel-fade .active.carousel-item-end {
    transition: none;
  }
}

.carousel-control-prev,
.carousel-control-next {
  position: absolute;
  bottom: 10px;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 15%;
  padding: 0;
  color: #111;
  text-align: center;
  background: none;
  border: 0;
  opacity: 0.5;
  transition: opacity 0.15s ease;
}
@media (prefers-reduced-motion: reduce) {
  .carousel-control-prev,
.carousel-control-next {
    transition: none;
  }
}
.carousel-control-prev:hover, .carousel-control-prev:focus,
.carousel-control-next:hover,
.carousel-control-next:focus {
  color: #000;
  text-decoration: none;
  outline: 0;
  opacity: 0.9;
  cursor:pointer;
}

.carousel-control-prev {
  left: 0;
}

.carousel-control-next {
  right: 0;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  background-repeat: no-repeat;
  background-position: 50%;
  background-size: 100% 100%;
}

.carousel-control-prev-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e");
}

.carousel-control-next-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.carousel-indicators {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding: 0;
  margin-right: 15%;
  margin-bottom: 1rem;
  margin-left: 15%;
  list-style: none;
}
.carousel-indicators [data-bs-target] {
  box-sizing: content-box;
  flex: 0 1 auto;
  width: 30px;
  height: 3px;
  padding: 0;
  margin-right: 3px;
  margin-left: 3px;
  text-indent: -999px;
  cursor: pointer;
  background-color: #555;
  background-clip: padding-box;
  border: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  opacity: 0.5;
  transition: opacity 0.6s ease;
}
@media (prefers-reduced-motion: reduce) {
  .carousel-indicators [data-bs-target] {
    transition: none;
  }
}
.carousel-indicators .active {
  opacity: 1;
}

.carousel-caption {
  background: rgba(0, 107, 201, 0.5);
  position: absolute;
  margin-top: 20px;
  right:0;
  left:0;
  padding: 7px 33px 7px 33px;
  color: #fff;
  text-align: left;
}

.carousel-dark .carousel-control-prev-icon,
.carousel-dark .carousel-control-next-icon {
  filter: invert(1) grayscale(100);
}
.carousel-dark .carousel-indicators [data-bs-target] {
  background-color: #000;
}
.carousel-dark .carousel-caption {
  color: #000;
}

/* Carousel base class */
.carousel {
  margin-bottom: 4rem;
}
/* Since positioning the image, we need to help out the caption */
.carousel-caption {
  bottom: 3rem;
  z-index: 10;
}

/* Declare heights because of positioning of img element */
.carousel-item {
  height: 32rem;
}
.carousel-item > img {
  position: absolute;
  top: 0;
  left: 0;
  min-width: 100%;
  height: 32rem;
}

.visually-hidden,
.visually-hidden-focusable:not(:focus):not(:focus-within) {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.text-start {
  text-align: left !important;
}
.btn-primary {
  color: #fff;
  background-color: #2937f0;
  border-color: #2937f0;
}
.btn-primary:hover {
  color: #fff;
  background-color: #232fcc;
  border-color: #212cc0;
}

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

body{
    font-family:Segoe UI,Roboto,Arial,sans-serif;
    background:#f4f7fb;
    color:#333;
}
.topbar{
    position:sticky;
    top:0;
    z-index:999;
    background:#fff;
    box-shadow:0 4px 18px rgba(0,0,0,.08);
}

.container{
    width:95%;
    max-width:1400px;
    margin:auto;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:15px 0;
}

.logo img{
    height:50px;
}

nav{
    display:flex;
    align-items:center;
    gap:28px;
}

nav a{
    text-decoration:none;
    color:#1b2b45;
    font-weight:600;
    transition:.25s;
}

nav a:hover{
    color:#1565C0;
}
.submit-btn{
    background:#1565C0;
    color:white!important;
    padding:12px 24px;
    border-radius:8px;
}
.submit-btn:hover{
    background:#0D47A1;
}

.hero{

    background:linear-gradient(135deg,#0B5ED7,#1976D2,#2196F3);

    color:white;

    padding:90px 20px;

    text-align:center;

}

.hero-content{

    max-width:900px;

    margin:auto;

}

.hero h1{

    font-size:48px;

    font-weight:700;

    margin-bottom:20px;

}

.hero p{

    font-size:20px;

    opacity:.95;

    margin-bottom:35px;

}

.hero-search{

    display:flex;

    justify-content:center;

    align-items:center;

    gap:15px;

    flex-wrap:wrap;

}

.hero-search input{

    width:650px;

    max-width:100%;

    padding:18px 22px;

    border:none;

    border-radius:10px;

    font-size:18px;

    outline:none;

    box-shadow:0 10px 30px rgba(0,0,0,.15);

}

.hero-search button{

    padding:18px 35px;

    border:none;

    border-radius:10px;

    background:#FF6F00;

    color:white;

    font-size:18px;

    cursor:pointer;

    transition:.25s;

    box-shadow:0 8px 20px rgba(0,0,0,.15);

}

.hero-search button:hover{

    background:#F57C00;

    transform:translateY(-2px);

}

@media(max-width:768px){

.hero{

    padding:60px 15px;

}

.hero h1{

    font-size:32px;

}

.hero p{

    font-size:17px;

}

.hero-search{

    flex-direction:column;

}

.hero-search input{

    width:100%;

}

.hero-search button{

    width:100%;

}

}

.metrics{

    padding:70px 0;

    max-width:1300px;

    margin:auto;

}

.metrics h2{

    text-align:center;

    font-size:34px;

    margin-bottom:45px;

    color:#1b2b45;

}

.metric-grid{

    display:grid;

    grid-template-columns:repeat(4,1fr);

    gap:30px;

}

.metric-card{

    background:white;

    border-radius:16px;

    padding:40px 20px;

    text-align:center;

    box-shadow:0 10px 30px rgba(0,0,0,.08);

    transition:.3s;

}

.metric-card:hover{

    transform:translateY(-8px);

    box-shadow:0 18px 40px rgba(0,0,0,.15);

}

.metric-card span{

    display:block;

    font-size:46px;

    font-weight:700;

    color:#1565C0;

}

.metric-card small{

    display:block;

    margin-top:12px;

    font-size:17px;

    color:#666;

}

@media(max-width:900px){

.metric-grid{

grid-template-columns:repeat(2,1fr);

}

}

@media(max-width:600px){

.metric-grid{

grid-template-columns:1fr;

}

}

.latest-section{

    max-width:1400px;

    margin:80px auto;

}

.latest-section h2{

    text-align:center;

    font-size:36px;

    margin-bottom:45px;

    color:#1b2b45;

}

.latest-grid{

    display:grid;

    grid-template-columns:repeat(4,1fr);

    gap:28px;

}

.latest-card{

    background:white;

    border-radius:18px;

    overflow:hidden;

    box-shadow:0 10px 25px rgba(0,0,0,.08);

    transition:.3s;

}

.latest-card:hover{

    transform:translateY(-8px);

    box-shadow:0 18px 40px rgba(0,0,0,.15);

}

.article-banner{

    width:100%;

    height:180px;

    object-fit:cover;

}

.latest-card h3{

    padding:20px;

    color:#1565C0;

}

.article-link{

    display:block;

    padding:12px 20px;

    text-decoration:none;

    color:#333;

    border-top:1px solid #eee;

    transition:.25s;

    line-height:1.45;

}

.article-link:hover{

    background:#F4F8FF;

    color:#1565C0;

    padding-left:28px;

}

@media(max-width:1200px){

.latest-grid{

grid-template-columns:repeat(2,1fr);

}

}

@media(max-width:700px){

.latest-grid{

grid-template-columns:1fr;

}

}

.issues-section{

    max-width:1400px;

    margin:90px auto;

}

.issues-section h2{

    text-align:center;

    font-size:36px;

    margin-bottom:45px;

}

.issues-grid{

    display:grid;

    grid-template-columns:repeat(4,1fr);

    gap:28px;

}

.issue-card{

    background:white;

    border-radius:18px;

    overflow:hidden;

    box-shadow:0 10px 25px rgba(0,0,0,.08);

    transition:.3s;

}

.issue-card:hover{

    transform:translateY(-8px);

    box-shadow:0 20px 40px rgba(0,0,0,.15);

}

.issue-card img{

    width:100%;

    height:300px;

    object-fit:cover;

}

.issue-card h3{

    padding:20px 20px 10px;

    font-size:19px;

    color:#1B2B45;

}

.issue-card p{

    padding:0 20px;

    line-height:1.8;

    color:#666;

}

.issue-card a{

    display:block;

    margin:20px;

    text-align:center;

    background:#1565C0;

    color:white;

    padding:12px;

    border-radius:8px;

    text-decoration:none;

    transition:.25s;

}

.issue-card a:hover{

    background:#0D47A1;

}

@media(max-width:1200px){

.issues-grid{

grid-template-columns:repeat(2,1fr);

}

}

@media(max-width:700px){

.issues-grid{

grid-template-columns:1fr;

}

}

.journals-section{

    max-width:1450px;
    margin:90px auto;

}

.journals-section h2{

    text-align:center;
    font-size:38px;
    color:#1b2b45;

}

.section-subtitle{

    text-align:center;
    color:#777;
    margin:15px 0 45px;

}

.journal-grid{

    display:grid;

    grid-template-columns:repeat(auto-fit,minmax(260px,1fr));

    gap:30px;

}

.journal-card{

    background:#fff;

    border-radius:18px;

    overflow:hidden;

    box-shadow:0 10px 30px rgba(0,0,0,.08);

    transition:.35s;

}

.journal-card:hover{

    transform:translateY(-10px);

    box-shadow:0 20px 45px rgba(0,0,0,.16);

}

.cover{

    background:#eef4fb;

    text-align:center;

    padding:25px;

}

.cover img{

    width:150px;

    height:auto;

    transition:.35s;

}

.journal-card:hover .cover img{

    transform:scale(1.05);

}

.journal-body{

    padding:25px;

}

.journal-code{

    display:inline-block;

    padding:5px 12px;

    background:#1565C0;

    color:white;

    border-radius:30px;

    font-size:13px;

    margin-bottom:15px;

}

.journal-body h3{

    font-size:20px;

    margin-bottom:18px;

    color:#1b2b45;

    line-height:1.35;

}

.journal-body p{

    margin:10px 0;

    color:#666;

}

.visit-btn{

    display:inline-block;

    margin-top:20px;

    padding:12px 22px;

    border-radius:8px;

    background:#1565C0;

    color:white;

    text-decoration:none;

    transition:.25s;

}

.visit-btn:hover{

    background:#0D47A1;

}

.search-results{

    max-width:1100px;

    margin:auto;

}

.result-card{

    background:#fff;

    border-radius:16px;

    padding:28px;

    margin-bottom:22px;

    box-shadow:0 8px 24px rgba(0,0,0,.08);

    transition:.3s;

}

.result-card:hover{

    transform:translateY(-4px);

    box-shadow:0 15px 40px rgba(0,0,0,.14);

}

.result-card h3{

    margin:0 0 12px;

}

.result-card h3 a{

    text-decoration:none;

    color:#1565C0;

    line-height:1.4;

}

.result-card h3 a:hover{

    color:#0D47A1;

}

.authors{

    color:#555;

    margin-bottom:12px;

    line-height:1.7;

}

.journal{

    color:#777;

    margin-bottom:10px;

}

.doi{

    font-size:14px;

}

.doi a{

    color:#1565C0;

    text-decoration:none;

}