/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

ul {
  list-style: none;;
}

.btn {
  display: inline-block;
  background: #007BFF;
  color: white;
  padding: 12px 24px;
  border-radius: 5px;
  font-weight: bold;
  transition: background 0.3s;
}

.btn:hover {
  background: #0056b3;
}

li{
  list-style: none;
}

a {
    text-decoration: none !important;
}

/* ------------------------------------------------------------------------------------------------- */


/* استایل کل صفحه لودر */
#preloader {
  position: fixed;
  inset: 0; /* بالا/پایین/چپ/راست صفر */
  display: grid;
  place-items: center;
  background: #fff; /* رنگ زمینه لودر */
  z-index: 9999;
  opacity: 1;
  visibility: visible;
  transition: opacity 400ms ease, visibility 400ms ease;
}

/* حالت محو شدن */
#preloader.fade-out {
  opacity: 0;
  visibility: hidden;
}

/* اسپینر */
.spinner {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 6px solid rgba(0, 0, 0, 0.15);
  border-top-color: rgba(0, 0, 0, 0.7);
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}


/* ------------------------------------------------------------------------------------------------------------- */
/* Header & Navigation */
header {
  /* background: transparent; */
  font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
  box-shadow: none;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: background 1.1s ease, box-shadow 0.4s ease;
  padding: 15px 0;
}

header.scrolled {
  background: rgba(255, 255, 255, 0.893);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.logo a{
  font-size: 1.8rem;
  font-weight: bold;
  color: white; /* Keep white when over hero */
  transition: color 0.4s ease;
}

header.scrolled .logo a{
  color: black;
}

.menu {
  display: flex;
  gap: 40px;
  color: #eef2f7;
  padding-top: 10px;
}

.dropdown {
  position: relative;
}

.dropdown a{
  color: white; /* White when over hero */
  transition: color 0.4s ease;
}

.dropdown a.active{
  color: rgb(14, 10, 237); /* White when over hero */
  transition: color 0.4s ease;
}

header.scrolled .dropdown a.active{
  color: rgb(14, 10, 237); /* White when over hero */
  transition: color 0.4s ease;
}

.dropdown:hover a{
  color: rgb(0, 0, 0); /* White when over hero */
  font-weight: 500;
  transition: color 0.4s ease;
}

header.scrolled .dropdown a {
  color: #000000;
}

header.scrolled .dropdown:hover a {
  color: #0318ff;
}


/* Hamburger (Mobile) */
.hamburger {
  display: none;
  font-size: 1.5rem;
  color: white;
  cursor: pointer;
  transition: color 0.4s ease;
}

header.scrolled .hamburger {
  color: #333;
}

/* Dropdown Button */

.dropdown i {
    font-size: 0.7em;
}

header.scrolled .dropdown:hover i{
  color: #2a3ed6;
}

.dropdown:hover i {
  transform: rotate(180deg);
}

/* Submenu Styles */
.submenu {
  position: absolute;
  display: inline-block;
  top: 100%;
  left: 0;
  width: 240px;
  background: rgb(255, 255, 255);
  border-radius: 5px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  overflow: hidden;
  list-style: none;
  padding: 0px 0;
  margin-top: 6px; /* Small gap */
  z-index: 1000;
}

.submenu li a {
  color: #2e2e2e;
  padding: 5px 20px;
  display: inline-block;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background 0.2s ease, padding-left 0.2s ease;
  width: 100%;
}

header.scrolled .submenu li a{
  -webkit-text-fill-color: #000000;
}


.submenu a:hover {
  background: #8ed2df;
  padding-left: 24px;
  width: 100%;
}


/* 👇 Key Fix: Prevent flicker by extending hover area */
.dropdown .dropdown-hover-zone {
  position: absolute;
  top: 100%;
  left: 0;
  height: 20px;  /* Invisible buffer below the menu */
  width: 100%;
  pointer-events: none; /* Allows hover to pass through */
}

/* Show submenu when hovering over dropdown or buffer */
.dropdown:hover .submenu,
.submenu:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  display: inline-block;
}


/* ------------------------------------------------------------------------------------------------------- */

/* pages header */

.page-header{
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
  text-align: center;
}

.page-header-pic{
  height: 500px;
}

.page-header::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.7) 5%, rgba(0, 0, 0, 0) 20%, rgba(0,0,0,0) 100%);
  z-index: 1;
}

.page-header-content{
  padding-top: 150px;

}
.page-header-content h1{
  font-size: 100px;
  font-weight: bolder;
  color: white;
}



/* ---------------------------------------------------------------------------------------------------------- */


/* Hero Section */
.hero {
  position: relative;
  width: 100%;
  height: 800px;
  overflow: hidden;
}


.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  /* transition: opacity 1s ease-in-out; */
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: left;
  color: white;
  text-align: left;
}

.slide::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.7) 5%, rgba(0, 0, 0, 0.149) 20%, rgba(0,0,0,0) 100%);
  z-index: 1;
}


.slide.active {
  opacity: 1;
}

.slide-content {
  position: absolute;
  max-width: 800px;
  padding: 15px;
  animation: fadeIn 1s ease-in;
  z-index: 2;
}


.slide-content h1 {
  font-size: 3rem;
  margin-bottom: 20px;

}

.slide-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

.slide-content .btn {
  display: inline-table;
  padding: 12px 30px;
  background-color: #0f78a4;
  color: white;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s;
  border-radius: 0px;
}

.slide-content .btn:hover {
  background-color: #ffffff;
  -webkit-text-fill-color: #000000;
}

/* انیمیشن ورود متن */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* نقاط کنترل اسلاید */
.dots {
  position: absolute;
  bottom: 20px;
  width: 100%;
  text-align: center;
  z-index: 10;
}

.dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin: 0 5px;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.3s;
}

.dot.active {
  background-color: white;
}

.hero-team {
  position: relative;
  width: 100%;
  height: 60vh;
  overflow: hidden;
  opacity: 0.8;
}


/* ---------------------------------------------------------------------------------------------- */


/* Sections */
.About-Group-section {
  padding: 80px 0;
  text-align: center;
}

.About-Group-section h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
  color: #007BFF;
}

.About-Group-container{
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.bg-light {
  background: #eef2f7;
}



/* -------------------------- */
.research-container {
  padding: 80px 0;
  text-align: center;
}

.research-container h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
  color: #007BFF;
}

.research-container{
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.bg-light {
  background: #eef2f7;
}

/* ------------------------------------ */

.contact-container {
  padding: 80px 0;
  text-align: center;
}

.contact-container h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
  color: #007BFF;
}

.contact-container{
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.bg-light {
  background: #eef2f7;
}

/* Stats */
.stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.stat h3 {
  font-size: 2.5rem;
  color: #007BFF;
}

.stat a{
  color: #000000;
}

.stat a:hover{
  color: #084bda;
}

/* Cards */
.cards {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.card {
  background: white;
  padding: 30px;
  border-radius: 5px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  width: 300px;
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-10px);
}

.card h3 {
  color: #007BFF;
  font-weight: bolder;
  height: 100px;
  display: flex;
  justify-content: center;
  align-items: center;

}


/* ----------------------------------------------------------------------------------------------------------------------------------- */


/* Team */

.Group-container{
  width: 100%;
  height: 100%;
}

.group-title{
  font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
  font-size: 35px;
  width: 700px;
  height: 100px;
  text-align: center;
  padding-top: 20px;
  background-color: #e1edf25c;
  margin: 0 auto;
  margin-top: 20px;
  margin-bottom: 20px;
}

.group-title:hover{
  background-color: rgba(40, 68, 112, 0.374);
  transition: all 1s ease;
}

.students{
  text-align: center;
  margin: 0 auto;
}

.between-line{
  border: 5px;
  color: #0472e9;
  width: 85%;
  margin: 0 auto;
  margin-top: 20px;
}

.team-container{
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  /* padding-top: 10px; */
}


.team-member{
  position: relative;
  width: calc(25% - 15px);
  min-width: 200px;
  overflow: hidden;

}

.team-member img{
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.team-member:hover img{
  transform: scale(1.15);
}


.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(0, 0, 0, 0.164) 50%, var(--bs-dark));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  opacity: 1;
  transition: opacity 0.3 ease;
}

.team-member:hover .overlay{
  opacity: 1;
  background: #0000008e;
}

.social-icons {
  display: flex;
  justify-content: center;
  padding: 10px;
  position: absolute;
  bottom: 0;
  width: 100%;
  align-items: center;
  gap: 10px;
  filter: invert();
  

}

.social-icons a{
  margin: 0 5px;
}

.social-icons img {
  width: 20px;
  height: 20px;
}

.info {
  text-align: center;
  color: white;
  padding: 0px;
  padding-left: 20px;
  padding-right: 20px;
  position: absolute;
  bottom: 30px;
  width: 100%;
  align-items: center;

}

.info h3{
  font-size: 18px;
  margin-bottom: 5px;
  font-weight: bold;
}

.info p{
  font-size: 14px;
  font: bold;
}

/* -------------------------------------------------------------------------------------------------------------- */

/* Contact Form */

.contact-form {
  max-width: 600px;
  margin: 40px auto 0;
  text-align: left;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-family: inherit;
}

.contact-form button {
  width: 100%;
}


/* ----------------------------------------------------------------------------------------------- */

/* Footer */

.footer-container{
  width: 100%;
  background: #222;
  color: #ccc;
  height: auto;
  display: flex;
  justify-content: space-between;
  padding: 40px 80px 40px 80px;
  margin-top: 20px;
}

.right-footer {
  padding-right: 50px;
 
}

.left-footer img{
  width: 20px;
  filter: invert();
  margin-right: 10px;
}

.social{
  display: flex;
  gap: 20px;
}

.social img{
  width: 20px;
  filter: invert(100%);
}

.social img:hover{
  filter: invert(50%);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  nav ul {
    display: none;
    flex-direction: column;
    background: white;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    padding: 20px;
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
  }

  nav ul.show {
    display: flex;
  }

  .hero h1 {
    font-size: 2.2rem;
  }
}

/* -------------------------------------------------------------------------------------------------------- */

/* chromatography page */


.chromatography_description{
  padding: 40px;
  background-color: #c9dff4;
  font-family:'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
  padding-right: 80px;
  padding-left: 80px;
}

.chromatography_description h1{
  font-size: 50px;
  padding-bottom: 30px;
  justify-content: center;
  font-weight: bold;
}

.chromatography_description p{
  font-size: 16px;
  text-align: justify;
}

.chromoatography-menu{
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  /* padding-top: 50px; */
  padding-bottom: 100px;
  background-color: #ffffff;
}

div .chromoatography-menu-item{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: #151618;
  padding-left: 200px;
  padding-right: 200px;
  padding-top: 50px;
  height: 130%;
}

div .chromoatography-menu-item:hover{
  display: flex;
  color: #191616;
}

.chromoatography-dropdown{
  position: relative;
  width: calc(25% - 15px);
  min-width: 200px;
  overflow: visible;
  background-color: #1081b6;
  text-align: center;
  align-content: center;
  border-radius: 3px;
  /* margin: 0 auto; */
  /* box-shadow: 0 0px 10px rgba(0, 0, 0, 0.555); */
}

.chromoatography-dropdown:hover{
  background-color: rgb(83, 88, 106);
  transition: all 0.5s ease;
}

.chromoatography-btn{
  color: rgb(224, 215, 215);
  cursor: pointer;
  font-weight: 500;
  background: none;
  border: none;
  font-size: 20px;
  display: inline-block;
  align-items: center;
  gap: 6px;
}

.chromoatography-dropdown:hover .chromoatography-btn {
  color: #ffffff;
  font-size: 18px;
  transition: all 0.3s ease;
  font-weight: bold;
}

.chromoatography-btn i{
  color: rgb(253, 254, 254);
  font-size: 0.7em;
  transition: all 0.3s ease;
}

.chromoatography-dropdown:hover .chromoatography-btn i{
  transform: rotate(180deg);
  color: #ffffff;
}

.chromoatography-submenu {
  position: absolute;
  display: none;
  top: 85%;
  left: 0;
  width: 100%;
  background: rgb(255, 255, 255);
  border-radius: 0;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  overflow: hidden;
  list-style: none;
  padding: 0px 0;
  margin-top: 6px; /* Small gap */
  z-index: 1000;
}

.chromoatography-submenu a{
  display: inline-block;
  color: #2e2e2e;
  text-decoration: none;
  padding-top: 15px;
  font-size: 1.1rem;
  transition: background 0.2s ease, padding-left 0.2s ease;
  width: 100%;
  height: 50px;
  margin: 0 auto;
}

.chromoatography-submenu a:hover{
  background: #8ed2df;
  /* padding-left: 24px; */
  width: 100%;
  display: inline-block;
  font-weight: bold;
}

.chromoatography-submenu{
  max-height: 300px;
  overflow-y: auto;
}

.chromoatography-dropdown .chromoatography-dropdown-hover-zone {
  position: absolute;
  top: 100%;
  left: 0;
  height: 20px;  /* Invisible buffer below the menu */
  width: 100%;
  pointer-events: none; /* Allows hover to pass through */
}

.chromoatography-dropdown:hover .chromoatography-submenu,
.chromoatography-submenu:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  display: inline-block;
}

.chromatography-Product-container{
  width: 100%;
  padding-right: 180px;
  padding-left: 50px;
  margin-top: 50px;

}

.chromatography-Product{
  margin-top: 10px;
  height: 220px;
  display: flex;
  justify-content: space-between;
  padding: 20px;
  
}

.Product-info{
  margin-left: 10px;
  width: 60%;
  justify-content: center;
  margin: auto;
  color: rgb(56, 40, 40);
  text-align: justify;
}

.Product-info h1{
  font-size: 30px;
  font-weight: bolder;
}

.Product-info p{
  font-size: 16px;
}

.chromatography-Product img{
  scale: 1.2;
}

.chromatography-Product a{
  height: 50px;
  width: 170px;
  margin: auto;
  text-align: center;
  padding-top: 15px;
  justify-content: center;
  border-radius: 2px;
  border: 2px solid #000000;
  transition: all 0.7s ease;
  
}

.chromatography-Product h3{
  font-size: 15px;
}

.chromatography-Product a:hover{
  background-color: rgba(24, 119, 196, 0.253);
}

/* ------------------------------------------------------------------------------------- */

/* chromatography2 page */

.chromatography2-Product-container{
  width: 100%;
  height: 100%;
  padding-right: 150px;
  padding-left: 150px;
  margin-top: 50px;

}

.chromatography2-Product{
  margin-top: 10px;
  height: 400px;
  display: flex;
  justify-content: space-between;
  padding: 20px;
  
}

.Product2-info{
  margin-left: 10px;
  width: 60%;
  justify-content: center;
  margin: auto;
  color: rgb(56, 40, 40);
  text-align: justify;
}

.Product2-info h1{
  font-size: 30px;
  font-weight: bolder;
}

.Product2-info p{
  font-size: 16px;
}

.chromatography2-Product img{
  scale: 1;
  padding-top: 25px;
}

.chromatography2-Product h3{
  font-size: 15px;
  background-color: #007bff;
  width: 200px;
  height: 50px;
  text-align: center;
  justify-content: center;
  padding-top: 15px;
  color: #000000;
  border-radius: 3px;
  transition: all 0.7s ease;

}

.chromatography2-Product h3:hover{
  background-color: rgba(24, 119, 196, 0.253);
}


/* ---------------------------------------------------------------------------------- */

/* news */

.news-item {
  display: flex;
  background: white;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.news-item img {
  width: 150px;
  height: 120px;
  object-fit: cover;
}

.news-content {
  padding: 15px;
  flex: 1;
}

.news-content h3 {
  margin-bottom: 10px;
  color: #333;
}

.news-content p {
  color: #555;
  line-height: 1.6;
  margin-bottom: 10px;
}

.read-more {
  background: #007bff;
  color: white;
  border: none;
  padding: 8px 15px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 14px;
}

.read-more:hover {
  background: #0056b3;
}

/* Modal Styles */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  justify-content: center;
  align-items: center;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal {
  background: white;
  width: 90%;
  max-width: 600px;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 30px;
  height: 30px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 20px;
  font-weight: bold;
  color: #333;
  cursor: pointer;
  z-index: 10;
}

.modal img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.modal-content {
  padding: 20px;
}

.modal-content h2 {
  margin-bottom: 15px;
  color: #333;
}

.modal-content p {
  line-height: 1.8;
  color: #444;
}

/* -------------------------------------------------------------------------------------- */

/* news and sigle news page */

.news-page-title{
  width: 100%;
  justify-content: center;
  text-align: center;
  padding: 40px;
}

.news-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  justify-content: center;
}

.news-card {
  background: rgba(255, 255, 255, 0.104);
  /* border-radius: 4px; */
  overflow: hidden;
  /* box-shadow: 0 2px 4px rgba(0,0,0,0.1); */
  /* transition: transform 0.2s; */
  /* list-style: none; */
}

.news-card .main-content {
  padding: 0;
  opacity: 1;
  position: relative;
  background-color: #1277dba3;
}

.main-content img {
  width: 500px;
  height: 300px;
  object-fit: cover;
  bottom: 0;
  border-radius: 0px;
  transition: transform 0.2s;
}

.main-content .news-slideshow {
  width: 500px;
  height: 300px;
  object-fit: cover;
  bottom: 0;
  border-radius: 0px;
  transition: transform 0.2s;
}

.main-content:hover img{
  filter: brightness(60%);
  border-radius: 0px;
  transform: translateY(-5px);
}

.news-overlay{
  text-align: left;
  color: white;
  padding: 0px;
  padding-left: 20px;
  /* padding-right: 0px; */
  position: absolute;
  bottom: 0px;
  width: 100%;
  align-items: center;
  opacity: 1;
  background-color: #00000063;
}

.news-overlay h2 {
  font-size: 18px;
  color: #ffffff;
  padding-top: 5px;
  margin: 5px 0;  
}

.news-overlay p {
  /* padding: 15px; */
  font-size: 14px;
  color: #ffffff;
  margin: 5px 0;
}

.news-overlay a {
  display: inline-block;
  margin-bottom: 10px;
  background-color: #545d677b;
  /* box-shadow: 0 0 2px rgba(0, 0, 0, 0.729); */
  color: rgb(255, 255, 255);
  padding:  10px;
  border-radius: 0px;
  text-decoration: none;
  font-size: 14px;
}

.news-overlay a:hover {
  background: #fbfbfbc4;
  color: #000000;
}

/* خبر تکی */
.news-container {
  /* width: 90%; */
  margin: 20px auto;
  /* background: #7c5a5a; */
  padding: 20px;
  border-radius: 0px;
  /* box-shadow: 0 2px 8px rgba(0,0,0,0.1); */
  text-align: center;
}

.news-container h1 {
  text-align: center;
  margin-bottom: 20px;
}

.news-container .single-news-slideshow{
  display: block;
  margin: 0 auto;
  height: auto;
  /* object-fit: cover; */
  border-radius: 0;
  width: 70%;
  padding: 50px;
}

.news-container .single-news-img {
  display: block;
  margin: 0 auto 20px auto;
  width: 70%;
  height: auto;
  border-radius: 0px;
  padding: 50px;
}

.news-container p {
  font-size: 16px;
  line-height: 1.8;
  text-align: center;
  padding-left: 200px;
  padding-right: 200px;
}

.news-container .back-link {
  display: inline-block;
  margin-top: 20px;
  text-decoration: none;
  background: #007bff;
  color: #fff;
  padding: 8px 15px;
  border-radius: 0px;
}
.news-container .back-link:hover {
  background: #0056b3;
}

.news-slideshow {
  position: relative;
  width: 100%;
  /* height: 100%; */
  overflow: hidden;
}

.news-slideshow img {
  width: 100%;
  /* height: 100%; */
  object-fit: cover;
}

.news-slideshow button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  color: white;
  border: none;
  font-size: 24px;
  padding: 5px 10px;
  cursor: pointer;
}

.news-slideshow .news-prev-btn { 
  left: 10px;
  opacity: 0;
}

.news-card:hover .news-prev-btn{
  opacity: 1;
}

.news-slideshow .news-next-btn { 
  right: 10px;
  opacity: 0;
}

.news-card:hover .news-next-btn{
  opacity: 1;
}

.single-news-slideshow:hover .news-next-btn{
  opacity: 1;
}

.single-news-slideshow:hover .news-prev-btn{
  opacity: 1;
}

/* --------------------------------------------------------------------------------------------------------- */

/* publication page */

.paper{
  padding: 10ex;
}

.paperyear{
  font-size: 50px;
  font-weight: bold;
  padding-bottom: 25px;
}

.article a{
  color: #000000;
  font-size: 18px;
  display: block;
  margin-bottom: 20px;
  direction: inherit;
}
.article a:hover{
  color: #0804d4;
}

/* --------------------------------------------------------------------------------------------- */

/* بخش دستگاه ها که نیاز به کار خیلی زیادی دراد */
.facilities-section {
  width: 100%;
  position: relative;
  overflow: hidden;
  font-family: sans-serif;
}


.facilities-slider {
  position: relative;
  overflow: hidden;
}


.facilities-slides {
  display: flex;
  transition: transform 0.6s ease;
  width: 100%;
}

.facilities-slide {
  min-width: 100%;
  position: relative;
  backdrop-filter: blur(50px);
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px;
  /* box-sizing: border-box; */
}

.facilities-slide-content {
  display: flex;
  width: 100%;
  max-width: 800px;
  align-items: center;
  justify-content: space-between;
  
}

.facilities-slide-text {
  width: 100%;
  color: #ffffff;
}

.facilities-slide-text h1{
  font-weight: bolder;
  font-size: 100px;
}

.facilities-slide-image img {
  width: 400px;
  height: auto;
  border-radius: 10px;
}

/* خط‌ها و دکمه‌ها */
.facilities-slide-controls {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 20px;
}

.facilities-slide-lines {
  display: flex;
  gap: 10px;
  
}

.facilities-slide-line {
  width: 40px;
  height: 4px;
  background: rgba(255,255,255,0.3);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.facilities-slide-line.active {
  background: #b05e5e;
}

/* دکمه‌ها */
.facilities-prev,
.facilities-next {
  background-color: #00000000;
  color: #0f0e0e;
  border: none;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 14px;
}

/* ------------------------------------------------------------------------------------------- */

/* Reseach page */
.Research-section {
  width: 100%;
  padding: 100px;
  display: block;
  background-color: rgba(159, 159, 159, 0.178);
}



.Research-section a{
  background-color: #0056b3;
  color: white;
  width: 300px;
  height: 65px;
  font-size: 20px;
  font-weight: bold;
  padding: 15px 30px 15px 30px;
  margin-bottom: 10px;
  text-align: center;
}


.Research-section a:hover{
  background-color: #4f7cdf71;
  color: #000000;
  transition: all 0.3s ease;
}

.Research-section p{
  text-align: justify;
  font-size: 18px;
  margin-top: 30px;
  margin-bottom: 50px;
}


/* ----------------------------------- */

.prof-ghassempour-biography{
  display: flex;
  gap: 40px;
  padding: 50px 100px 50px 100px;
  align-items: center;
}

.prof-ghassempour-biography p{
  text-align: justify;
}

.prof-ghassempour-biography img{
  height: 400px;
  border-radius: 2px;
}

.prof-ghassempour-biography h2{
  font-size: 20px;
}


/* ------------------------------------------------------------------------------------------------------- */
/* service section */
.service-section{
  display: flex;
  gap: 80px;
  padding: 50px 100px 50px 100px;
  
}

.service-info{
  width: 700px;
}
.service-info h1{
  margin-top: 70px;
  background-color: rgb(75, 159, 243);
  width: 400px;
  padding: 20px;
  font-size: 30px;
  text-align: center;
}
.service-conect h1{
  margin-top: 70px;
  background-color: peru;
  text-align: center;
  padding: 20px;
  font-size: 25px;
  width: 400px;
}
.service-conect p{
  margin-top: 25px;
  text-align: left;
  padding: 20px;
  font-size: 15px;
  width: 400px;
}

.forms-section{
  text-align: center;
  display: grid;
  place-items: center;
  margin-top: 50px;


 }
.forms-section h1{
  background-color: #007BFF;
  width: 400px;
  padding: 10px;
}


.forms-file{
  font-size: 20px;
  width: 100%;
  padding-left: 100px;
  margin-bottom: 50px;
}
.forms-file p{
  text-align: left;
  padding-top: 20px;
  font-weight: bold;
  font-size: 20px;
}


.forms-file a{
  display: flex;
  font-weight: bolder;
  padding-top: 20px;
  
}