/*
    @developers "Anjan Maity"
    @params "css3"
*/

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  font-family: "Josefin Sans", sans-serif;
}

:root {
  /* --text-slate-dark: #030f18; */
  /* --bg-section: #183b54; */
  /* --btn-hover-color: #2320b6; */
  /* --primary-btn-color: #2294ed; */
  /* --list-color: #c1ebe0cc; */
  /* --white-color: #ffffff; */
  /* --gradient-color-primary: linear-gradient(-45deg, #fbc2eb 0%, #a6c1ee 100%); */
  --slate-dark: #011229;
  --body-bg-color: #ffffffdb;
  --white-smoke-color: #f6eeee;
  --border-color: #2320b6;
  --text-light-white: #b7bec6;
  --primary-color: #4f1c76;
  --secondary-color: #fef08a;
  --sub-heading-primary: hsla(354, 95%, 24%, 1);
  --sub-heading-secondary: hsla(234, 70%, 24%, 1);
  --section-bg-primary: hsla(350, 73%, 44%, 1);
  --section-bg-secondary: hsla(274, 65%, 12%, 1);
  --btn-color-primary: hsla(333, 100%, 53%, 1);
  --btn-color-secondary: hsla(33, 94%, 57%, 1);
  --anim-bg-primary: #f538b9;
  --anim-bg-secondary: #0ab6f8;
  --link-color: #11e75f;
  --hover-color: #2294ed;
  --text-color-grey: #ccc;
  --anim-icon-color: #11e75f;
  --info-color: #d0e112;
  --list-icon-color: #c5d6ff;
  --grey-text: #e5e4f1;
  --header-bg-color-primary: #4dadf7;
  --header-bg-color-secondary: #b9dfee;
  --text-white:#fff;
  --bx-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
  --gradient-color-secondary: linear-gradient(
    -225deg,
    #1c3ab0 50%,
    #a463b4 100%
  );
}

body {
  scroll-behavior: smooth;
  background-color: var(--body-bg-color);
}

/* customize browser scroll-bar */
::-webkit-scrollbar {
  display: none;
}

/* pre-loader style */
.preloader {
  position: absolute;
  top: 0%;
  left: 0%;
  width: 100%;
  height: 1000vh;
  background: var(--slate-dark);
  z-index: 9999;
  display: none;
}

.preloader .loader-icon {
  width: 100%;
  height: 100vh;
  background: var(--slate-dark);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.loader-welcome {
  width: 30%;
}

.loader-progress {
  width: 10%;
  margin-top: 0.58rem;
}

/* customize bootstrap style */
.modal {
  backdrop-filter: blur(5px);
  z-index: 9999999;
}

.modal-content {
  height: 90vh;
}

.modal-body {
  text-align: center;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.modal-body > img {
  width: 75%;
  object-fit: cover;
  transition: all 0.2s ease;
}

.modal-body > img:hover {
  transform: scale(1.1);
}

/* incons style */
.fa-arrow-down {
  color: #e84f13 !important;
  pointer-events: none;
}

/* icon animations */
.zoom {
  color: var(--anim-icon-color);
  scale: 1;
  transition: all 0.2s linear;
  animation: zoom-in-out 1s ease infinite;
}

@keyframes zoom-in-out {
  0% {
    scale: 1;
  }

  50% {
    scale: 1.2;
  }

  100% {
    scale: 1;
  }
}

/* helper style */
main {
  z-index: -1;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

header {
  transition-delay: 1s;
  transition: all 0.2s ease-in-out;
}

.sticky-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  transition: all 0.2s ease;
}

.primary-btn {
  display: inline-block;
  color: var(--grey-text);
  background: var(--btn-color-primary);
  background: linear-gradient(
    90deg,
    var(--btn-color-primary) 0%,
    var(--btn-color-secondary) 100%
  );
  background: -moz-linear-gradient(
    90deg,
    var(--btn-color-primary) 0%,
    var(--btn-color-secondary) 100%
  );
  background: -webkit-linear-gradient(
    90deg,
    var(--btn-color-primary) 0%,
    var(--btn-color-secondary) 100%
  );
  filter: progid: DXImageTransform.Microsoft.gradient(startColorstr="#FF0F7B", endColorstr="#F89B29", GradientType=1);
  padding: 0.5rem 1rem;
  border-radius: 5px;
  box-shadow: var(--bx-shadow);
}

.primary-btn:hover {
  color: var(--text-color-grey);
}

.para-text {
  color: var(--text-white);
}

.list-item {
  font-size: 1.1rem;
}

/* ********************* header-top style starts ************************** */
.header-top {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.5rem;
  background: url("../images/bg-icons.png"), var(--header-bg-color-secondary);
  background-size: 25%;
  background-position: center;
  clip-path: polygon(
    50% 0%,
    100% 0,
    100% 43%,
    100% 78%,
    96% 100%,
    7% 100%,
    0 79%,
    0% 43%,
    0 0
  );
}

.header-top_title,
.header-top-img {
  width: 33.3%;
}

.header-top-img {
  display: flex;
  justify-content: center;
  align-items: center;
}

.header-top .header-top-img > img {
  width: 150px;
  object-fit: cover;
}

.header-top_title {
  margin-top: 0.5rem;
  /* border: 1px solid #000; */
}

.header-top_title h1 {
  text-align: center;
  font-size: 1.5rem;
  /* -webkit-text-stroke: 1.5px #210b32; */
  color: transparent;
  font-weight: 700;
  margin: 0.25rem 0 0 0;
  color: var(--primary-color);
}

.header-top .header-top_title h2 {
  text-align: center;
  margin-bottom: 0.5rem;
}

.header-top .header-top_title h2 {
  text-transform: uppercase;
  font-size: 1.2rem;
  font-weight: 700;
  color: transparent;
  background: -moz-linear-gradient(
    90deg,
    var(--sub-heading-primary) 0%,
    var(--sub-heading-secondary) 100%
  );
  background: -webkit-linear-gradient(
    90deg,
    var(--sub-heading-primary) 0%,
    var(--sub-heading-secondary) 100%
  );
  background-clip: text;
  -webkit-background-clip: text;
  -moz-background-clip: text;
}

/* .header-top-dept {
    border: 1px solid #000;
} */
.header-top-dept h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: transparent;
  background: -moz-linear-gradient(
    90deg,
    var(--sub-heading-primary) 0%,
    var(--sub-heading-secondary) 100%
  );
  background: -webkit-linear-gradient(
    90deg,
    var(--sub-heading-primary) 0%,
    var(--sub-heading-secondary) 100%
  );
  background-clip: text;
  -webkit-background-clip: text;
  -moz-background-clip: text;
}

div.header-bottom {
  background-color: var(--slate-dark);
}

/* ********************* header-top & header-bottom styles end ************************** */

/* ********************* header navigation style starts ************************** */
nav .navbar {
  width: 100%;
  padding: 0;
}

nav ul {
  list-style: none;
  margin-bottom: 0;
  padding-left: 0;
}

nav ul li {
  margin-left: 0.5rem;
}

nav li a {
  border-radius: 5px;
  color: var(--text-color-grey) !important;
  text-transform: capitalize;
  transition: all 0.2s linear;
}

nav li a:hover {
  background: linear-gradient(
    90deg,
    hsla(324, 91%, 46%, 1) 0%,
    hsla(18, 100%, 49%, 1) 100%
  );
}

/* .active {
    background-color: var(--primary-color);
} */
/* *********************  header navigation styles end ************************** */

/* ********************* main section style starts ************************** */
main section {
  margin-bottom: 0.25em;
  background: var(--section-bg-primary);
  /* background: linear-gradient(90deg, var(--section-bg-primary) 0%, var(--section-bg-secondary) 100%);
    background: -moz-linear-gradient(90deg, var(--section-bg-primary) 0%, var(--section-bg-secondary) 100%);
    background: -webkit-linear-gradient(90deg, var(--section-bg-primary) 0%, var(--section-bg-secondary) 100%);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr="#C11E38", endColorstr="#220B34", GradientType=1);
    */
  background-image: linear-gradient(to right, #6a11cb 0%, #2575fc 100%);
  height: auto;
  padding: 1rem 0 0 0;
  border: 0;
  z-index: 99999;
  overflow: hidden;
}


.section-home {
  width: 100%;
  background: url("../images/math_bg.jpg"),
    linear-gradient(
      90deg,
      rgba(2, 0, 36, 1) 0%,
      rgba(30, 15, 50, 1) 35%,
      rgba(70, 40, 60, 1) 100%
    );
  background-position: top;
  background-size: cover;
  background-repeat: no-repeat;
  overflow: hidden;
  box-sizing: border-box;
}
.section-home1 {
  width: 100%;
  /* background: url("../images/math_bg.jpg"),
    linear-gradient(
      90deg,
      rgba(2, 0, 36, 1) 0%,
      rgba(30, 15, 50, 1) 35%,
      rgba(70, 40, 60, 1) 100%
    );*/
  background-position: top; 
  background-size: cover;
  background-repeat: no-repeat;
  overflow: hidden;
  box-sizing: border-box;
}

section .section-heading {
  padding: 0.5rem 0;
  text-align: center;
  color: var(--white-smoke-color);
  font-size: 2.3rem;
}

section:last-child {
  margin: 0;
}

section h2,
h3 {
  color: var(--secondary-color);
  margin: 0;
}

section p {
  font-size: 1.1rem;
  line-height: 1.2em;
}

section ul {
  list-style: none;
}

section ul li {
  display: inline-block;
  width: 90%;
  color: var(--text-white);
  border-bottom: 1px dotted var(--border-color);
  margin-top: 0.5rem;
}

section ul li > p::before {
  font-family: "Font Awesome 6 Free";
  content: "\f56b ";
  /* content: "\f0a4"; */
  color: var(--list-icon-color);
  font-weight: 600;
  margin-right: 0.25rem;
  -webkit-font-smoothing: antialiased;
}

.section-text > .highlight-text {
  background-color: var(--highlight-color);
  padding: 0.25rem;
  border-radius: 4px;
}

.uni-link {
  color: var(--link-color);
  transition: all 0.2s linear;
}

.uni-link:hover {
  color: var(--hover-color);
  text-decoration: underline;
}

.section-text > strong {
  color: var(--info-color);
  font-weight: 500;
  font-size: 0.95rem;
  margin-top: 0.5rem;
}

.section-text {
  text-align: justify;
  margin-top: 0.25rem;
}

.organiser-details {
  position: relative;
  color: var(--secondary-color);
  padding: 0.5rem;
  z-index: 999;
  transform: translateY(50%);
}
/* .organiser-details .venu-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin-top: 120px;
} */


.organiser-details::before {
  content: "";
  position: absolute;
  top: 0%;
  left: 0%;
  width: 100%;
  min-height: 18vh;
  background-color: rgba(6, 1, 11, 0.001);
  backdrop-filter: blur(3px);
  z-index: -1;
  overflow: hidden;
  border-radius: .25rem;
}

/* best paper award logo */
.paper-award-logo {
  animation: bg-glow 0.4s ease-in-out infinite;
}

/* deadline style */
.deadline-logo {
  animation: bg-glow 0.4s ease-in-out infinite;
}

/* payment-contents styles */
.payment-contents > li {
  font-size: 1.1rem;
}

.payment-contents li > strong {
  font-weight: 500;
  color: var(--secondary-color);
  font-size: 1rem;
}

.upi-qr-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 70%;
  padding: 0.25rem 0;
  height: auto;
  box-sizing: content-box;
  overflow: hidden;
}

.upi-qr-wrapper > .payment-info {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  transform: translate(-50%, -50%);
  z-index: 455;
}

.payment-info > p {
  color: var(--text-color-grey);
  padding: 0.25rem 1rem;
  background-color: var(--slate-dark) !important;
  border-radius: 5px;
  font-weight: 500;
}

.upi-qr-wrapper > img {
  width: 55%;
  object-fit: cover;
  filter: blur(2px);
  transition: all 0.2s linear;
  cursor: pointer;
}

/* registration paragraph style */
.schedule-reg > p {
  margin: 0;
  color: var(--grey-text);
  margin-top: 0.25rem;
}

/* contact us style */
.contact-us-img {
  text-align: center;
}

.contact-us-img > img {
  width: 50%;
  filter: drop-shadow(0 0 0.85rem var(--anim-bg-primary));
  object-fit: cover;
  animation: bg-glow 0.4s ease-in-out infinite;
}

@keyframes bg-glow {
  0% {
    filter: drop-shadow(0 0 0.75rem var(--anim-bg-primary));
  }

  50% {
    filter: drop-shadow(0 0 0.85rem var(--anim-bg-secondary));
  }

  100% {
    filter: drop-shadow(0 0 0.75rem var(--anim-bg-primary));
  }
}

/* theme ul style */
.theme-list li {
  font-size: 1.1rem;
}

/* back-home-icon style */
.back-home-icon {
  background-color: var(--slate-dark);
  position: fixed;
  right: 0;
  bottom: 0;
  z-index: 1111;
  display: none;
  overflow: hidden;
  text-align: center;
}

.back-home-icon .fa-angles-up {
  color: var(--secondary-color);
  transition: all 0.1s ease;
}

.back-home-icon .fa-angles-up:hover {
  color: var(--grey-text);
}

/* **********
*********** main section style ends ************************** */

/* footer style starts */
footer {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 50vh;
  background-color: var(--slate-dark);
  padding: 2.5rem 0;
  padding-bottom: 0;
}

.footer-links h5,
h6 {
  font-size: 1.5rem;
  color: var(--secondary-color);
}

.footer-links h6 {
  font-size: 1.2rem;
}

.footer-links ul {
  padding-left: 0.25rem;
}

.footer-links ul > li {
  border-bottom: 1px dashed var(--border-color);
}
.footer-nav {
    column-count: 2;
}
.footer-links li > a {
  color: var(--text-color-grey);
}

/* .footer-links .footer-thanks {
    padding: 1rem 0;
    padding-bottom: 0;
    font-size: 3rem;
    font-weight: 700;
    color: var(--slate-dark);
    -webkit-text-stroke: 1px var(--heading-color);
} */
.map-wrapper iframe {
  width: 100%;
}

/* ********************* media query start ************************** */
@media screen and (min-width: 768px) and (max-width: 992px) {
  .header-top {
    flex-direction: column !important;
  }

  .header-top .conatiner {
    display: flex !important;
    flex-direction: column !important;
    justify-content: center;
    align-items: center;
  }

  .header-top .header-top_title h1 {
    margin-bottom: 0;
    font-size: 1.2rem;
    text-align: center;
  }

  .header-top .header-top_title h2 {
    font-size: 1rem;
  }

  .header-top .header-top-img img {
    width: 120px;
  }
}

@media screen and (min-width: 468px) and (max-width: 768px) {
  .loader-welcome {
    width: 60%;
  }

  .loader-progress {
    width: 20%;
  }

  .header-top {
    padding: 0.5rem 0;
  }

  .header-top .container {
    flex-direction: column-reverse;
    justify-content: center;
    align-items: center;
  }

  .header-top_title,
  .header-top-img,
  .header-top-dept {
    width: 100%;
  }

  .header-top .header-top_title {
    margin-top: 0;
  }

  .header-top_title h1 {
    margin-bottom: 0;
    font-size: 1.5rem;
    text-align: center;
  }

  .header-top .header-top_title h2 {
    text-align: center !important;
    font-size: 1rem;
  }

  .header-top-dept {
    padding: 0.5rem 0;
    text-align: center;
  }

  .header-top .header-top-img img {
    width: 130px;
  }

  .header-top-dept h3 {
    font-size: 1.2rem;
    font-weight: 600;
  }

  section p,
  .theme-list li,
  .list-item,
  .payment-contents > li {
    font-size: 1rem;
  }

  .reg-btn > p {
    font-size: 0.85rem;
    margin: 0.5rem 0;
    text-align: center;
  }
  .organiser-details::before {
    content: "";
    filter: blur(1px);
    background-color: none;
    min-height: 10vh;
  }
   .organiser-details .venu-content {
       margin-top: 10px;
       padding: 0 !important;
   }

   .venu-content>div>.text-dept {
       font-size: 0.8rem;
       margin-bottom: 0;
   }

   .venu-content>div>.text-place {
       font-size: 0.8rem;
   }
}

@media (max-width: 468px) {
  html {
    font-size: 80%;
  }

  .header-top .container {
    padding: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  .loader-welcome {
    width: 90%;
  }

  .loader-progress {
    width: 28%;
  }

  .header-top {
    padding: 0.25rem 0;
  }

  .header-top_title,
  .header-top-img,
  .header-top-dept {
    width: 100%;
  }

  .header-top .header-top-img > img {
    width: 135px;
  }

  .header-top_title {
    width: 100%;
  }

  .header-top .header-top_title h1 {
    font-size: 1.4rem;
    text-align: center;
    margin-bottom: 0;
  }

  .header-top .header-top_title > h2 {
    text-align: center;
    margin-top: 0.5rem;
  }

  .header-top .header-top_title h2 {
    word-wrap: break-word;
    font-size: 1rem;
    font-weight: 600;
  }

  .header-top-dept {
    padding: 0.5rem 0;
  }

  .header-top-dept h3 {
    font-size: 1.2rem;
    text-align: center;
    /* padding: .5rem 0; */
  }

  nav {
    align-items: start;
    flex-direction: column;
    flex-wrap: wrap;
    padding-bottom: 0.5rem;
  }

  nav ul {
    padding-left: 0;
  }

  nav ul li:first-child {
    margin-top: 0;
  }

  nav ul li {
    text-align: center;
    margin-top: 0.25em;
  }

  nav li a {
    font-size: 0.9rem;
  }

  /* main-style */
  main section:first-child {
    border-radius: 0;
  }

  main section {
    background-image: var(--gradient-color-secondary);
    background-repeat: no-repeat;
    background-size: cover;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
  }

  .section-text {
    line-height: 1.5rem;
  }

  section ul {
    padding-left: 0.5rem;
  }

  section ul li {
    color: var(--text-light-white);
  }

  /* best paper */
  .best-paper-contents .paper-contents {
    margin-top: 0.5rem;
    order: 2;
  }

  .best-paper-contents .paper-award-logo {
    order: 1;
  }

  .upi-qr-wrapper > img {
    width: 100%;
  }

  .upi-qr-wrapper .payment-info {
    width: 80%;
  }

  .contact-us-img {
    order: 1;
  }

  .contact-us-img > img {
    width: 80%;
  }

  .footer-map {
    margin-top: 0.7rem;
  }

  .map-wrapper iframe {
    height: 250px;
  }
}

@media (max-width: 320px) {
  .loader-welcome {
    width: 90%;
  }

  .loader-progress {
    width: 28%;
  }

  .header-top .container {
    padding: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  .header-top .header-top-img > img {
    width: 110px;
  }

  .header-top .header-top_title {
    padding: 0.5rem;
    background: none;
  }

  .header-top .header-top_title h1 {
    text-align: center;
    font-size: 1.5rem;
    margin: 0.5rem 0;
  }

  .header-top .header-top_title h2 {
    color: var(--slate-dark);
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.5;
    word-wrap: break-word;
  }

  .header-top .header-top_title h2:last-child {
    margin-bottom: 0;
  }

  .header-top-dept h3 {
    color: var(--slate-dark);
  }

  main section {
    border-radius: 0;
  }
}

/* ********************* media query ends ************************** */