/**
* Apple Keynote–inspired theme for RelSciFM @ KDD 2026
* Built on Bootstrap 5.3.3
*/

/*--------------------------------------------------------------
# Font & Color Variables
--------------------------------------------------------------*/
:root {
  --default-font: "DM Sans", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --heading-font: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  --nav-font: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
}

:root {
  --background-color: #000000;
  --default-color: #f5f5f7;
  --heading-color: #f5f5f7;
  --accent-color: #2997ff;
  --surface-color: #1d1d1f;
  --contrast-color: #ffffff;
  --text-secondary: #86868b;
  --border-color: rgba(255, 255, 255, 0.08);
  --gradient-start: #000000;
  --gradient-end: #0a0a2e;
}

:root {
  --nav-color: rgba(245, 245, 247, 0.8);
  --nav-hover-color: #ffffff;
  --nav-mobile-background-color: rgba(29, 29, 31, 0.95);
  --nav-dropdown-background-color: rgba(29, 29, 31, 0.95);
  --nav-dropdown-color: #f5f5f7;
  --nav-dropdown-hover-color: #2997ff;
}

.light-background {
  --background-color: #fbfbfd;
  --default-color: #1d1d1f;
  --heading-color: #1d1d1f;
  --surface-color: #ffffff;
  --text-secondary: #6e6e73;
  --border-color: rgba(0, 0, 0, 0.06);
}

.dark-background {
  --background-color: #000000;
  --default-color: #f5f5f7;
  --heading-color: #ffffff;
  --surface-color: #1d1d1f;
  --contrast-color: #ffffff;
  --text-secondary: #86868b;
  --border-color: rgba(255, 255, 255, 0.08);
}

:root {
  scroll-behavior: smooth;
}

/*--------------------------------------------------------------
# General
--------------------------------------------------------------*/
body {
  color: var(--default-color);
  background-color: var(--background-color);
  font-family: var(--default-font);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #6cb8ff;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--heading-color);
  font-family: var(--heading-font);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

::selection {
  background: rgba(41, 151, 255, 0.3);
  color: #fff;
}

/*--------------------------------------------------------------
# Global Header — Frosted Glass
--------------------------------------------------------------*/
.header {
  --background-color: rgba(0, 0, 0, 0);
  --heading-color: #ffffff;
  color: var(--default-color);
  background-color: var(--background-color);
  padding: 0;
  height: 52px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 997;
  display: flex;
  align-items: center;
}

.header .logo {
  line-height: 1;
}

.header .logo img {
  max-height: 28px;
  margin-right: 8px;
}

.header .logo h1 {
  font-size: 20px;
  margin: 0;
  font-weight: 600;
  color: var(--heading-color);
  letter-spacing: -0.01em;
}

.header .cta-btn,
.header .cta-btn:focus {
  color: var(--contrast-color);
  background: var(--accent-color);
  font-size: 13px;
  font-weight: 500;
  padding: 7px 20px;
  margin: 0 0 0 24px;
  border-radius: 980px;
  transition: all 0.3s ease;
  letter-spacing: -0.01em;
}

.header .cta-btn:hover,
.header .cta-btn:focus:hover {
  color: var(--contrast-color);
  background: #0077ed;
}

.scrolled .header {
  background: rgba(0, 0, 0, 0.72);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

@media (max-width: 1200px) {
  .header .logo {
    order: 1;
  }

  .header .btn-getstarted {
    order: 2;
    margin: 0 15px 0 0;
    padding: 6px 15px;
  }

  .header .navmenu {
    order: 3;
  }
}

/*--------------------------------------------------------------
# Navigation
--------------------------------------------------------------*/
@media (min-width: 1200px) {
  .navmenu {
    padding: 0;
  }

  .navmenu ul {
    margin: 0;
    padding: 0;
    display: flex;
    list-style: none;
    align-items: center;
  }

  .navmenu li {
    position: relative;
  }

  .navmenu > ul > li {
    white-space: nowrap;
    padding: 15px 12px;
  }

  .navmenu > ul > li:last-child {
    padding-right: 0;
  }

  .navmenu a,
  .navmenu a:focus {
    color: var(--nav-color);
    font-size: 13px;
    padding: 0;
    font-family: var(--nav-font);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    white-space: nowrap;
    transition: color 0.3s ease;
    position: relative;
    letter-spacing: -0.01em;
  }

  .navmenu > ul > li > a:before {
    content: "";
    position: absolute;
    height: 1px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-color);
    visibility: hidden;
    width: 0;
    transition: all 0.3s ease;
  }

  .navmenu a:hover:before,
  .navmenu li:hover > a:before,
  .navmenu .active:before {
    visibility: visible;
    width: 100%;
  }

  .navmenu li:hover > a,
  .navmenu .active,
  .navmenu .active:focus {
    color: var(--nav-hover-color);
  }

  .navmenu .dropdown ul {
    margin: 0;
    padding: 8px 0;
    background: rgba(29, 29, 31, 0.95);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    display: block;
    position: absolute;
    visibility: hidden;
    left: 14px;
    top: 130%;
    opacity: 0;
    transition: 0.3s;
    border-radius: 12px;
    z-index: 99;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  }

  .navmenu .dropdown ul li {
    min-width: 200px;
  }

  .navmenu .dropdown ul a {
    padding: 8px 20px;
    font-size: 14px;
    text-transform: none;
    color: var(--nav-dropdown-color);
  }

  .navmenu .dropdown ul a:hover,
  .navmenu .dropdown ul .active:hover,
  .navmenu .dropdown ul li:hover > a {
    color: var(--nav-dropdown-hover-color);
  }

  .navmenu .dropdown:hover > ul {
    opacity: 1;
    top: 100%;
    visibility: visible;
  }
}

/* Mobile Navigation */
@media (max-width: 1199px) {
  .mobile-nav-toggle {
    color: var(--nav-color);
    font-size: 28px;
    line-height: 0;
    margin-right: 10px;
    cursor: pointer;
    transition: color 0.3s;
  }

  .navmenu {
    padding: 0;
    z-index: 9997;
  }

  .navmenu ul {
    display: none;
    list-style: none;
    position: absolute;
    inset: 60px 20px 20px 20px;
    padding: 10px 0;
    margin: 0;
    border-radius: 16px;
    background: rgba(29, 29, 31, 0.95);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow-y: auto;
    transition: 0.3s;
    z-index: 9998;
  }

  .navmenu a,
  .navmenu a:focus {
    color: var(--nav-dropdown-color);
    padding: 10px 20px;
    font-family: var(--nav-font);
    font-size: 16px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    white-space: nowrap;
    transition: 0.3s;
  }

  .navmenu a:hover,
  .navmenu .active,
  .navmenu .active:focus {
    color: var(--accent-color);
  }

  .navmenu a i,
  .navmenu a:focus i {
    font-size: 12px;
    line-height: 0;
    margin-left: 5px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: 0.3s;
    background-color: rgba(41, 151, 255, 0.1);
  }

  .navmenu a i:hover,
  .navmenu a:focus i:hover {
    background-color: var(--accent-color);
    color: var(--contrast-color);
  }

  .navmenu .active i,
  .navmenu .active:focus i {
    background-color: var(--accent-color);
    color: var(--contrast-color);
    transform: rotate(180deg);
  }

  .navmenu .dropdown ul {
    position: static;
    display: none;
    z-index: 99;
    padding: 10px 0;
    margin: 10px 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    transition: all 0.5s ease-in-out;
  }

  .navmenu .dropdown > .dropdown-active {
    display: block;
  }

  .mobile-nav-active {
    overflow: hidden;
  }

  .mobile-nav-active .mobile-nav-toggle {
    color: #fff;
    position: absolute;
    font-size: 32px;
    top: 15px;
    right: 15px;
    margin-right: 0;
    z-index: 9999;
  }

  .mobile-nav-active .navmenu {
    position: fixed;
    overflow: hidden;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    transition: 0.3s;
  }

  .mobile-nav-active .navmenu > ul {
    display: block;
  }
}

/*--------------------------------------------------------------
# Global Footer
--------------------------------------------------------------*/
.footer {
  color: var(--text-secondary);
  background-color: #000000;
  font-size: 13px;
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer .copyright {
  padding: 24px 0;
}

.footer .copyright p {
  margin-bottom: 0;
}

.footer .copyright a {
  color: var(--text-secondary);
}

.footer .copyright a:hover {
  color: var(--accent-color);
}

.footer .credits {
  margin-top: 4px;
  font-size: 12px;
  color: rgba(134, 134, 139, 0.6);
}

/*--------------------------------------------------------------
# Preloader
--------------------------------------------------------------*/
#preloader {
  position: fixed;
  inset: 0;
  z-index: 999999;
  overflow: hidden;
  background: #000;
  transition: all 0.6s ease-out;
}

#preloader:before {
  content: "";
  position: fixed;
  top: calc(50% - 20px);
  left: calc(50% - 20px);
  border: 3px solid transparent;
  border-color: var(--accent-color) transparent var(--accent-color) transparent;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: animate-preloader 1s linear infinite;
}

@keyframes animate-preloader {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/*--------------------------------------------------------------
# Scroll Top Button
--------------------------------------------------------------*/
.scroll-top {
  position: fixed;
  visibility: hidden;
  opacity: 0;
  right: 15px;
  bottom: -15px;
  z-index: 99999;
  background-color: rgba(41, 151, 255, 0.9);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: all 0.4s;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.scroll-top i {
  font-size: 22px;
  color: #fff;
  line-height: 0;
}

.scroll-top:hover {
  background-color: var(--accent-color);
  color: #fff;
}

.scroll-top.active {
  visibility: visible;
  opacity: 1;
  bottom: 15px;
}

/*--------------------------------------------------------------
# Disable AOS delay on mobile
--------------------------------------------------------------*/
@media screen and (max-width: 768px) {
  [data-aos-delay] {
    transition-delay: 0 !important;
  }
}

/*--------------------------------------------------------------
# Global Sections
--------------------------------------------------------------*/
section,
.section {
  color: var(--default-color);
  background-color: var(--background-color);
  padding: 100px 0;
  scroll-margin-top: 52px;
  overflow: clip;
}

@media (max-width: 1199px) {
  section,
  .section {
    scroll-margin-top: 52px;
    padding: 64px 0;
  }
}

/*--------------------------------------------------------------
# Section Titles — Apple style
--------------------------------------------------------------*/
.section-title {
  text-align: center;
  padding-bottom: 48px;
  position: relative;
}

.section-title h2 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 0;
  position: relative;
  letter-spacing: -0.03em;
  background: linear-gradient(180deg, var(--heading-color) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title h2:after {
  display: none;
}

.section-title p {
  margin-bottom: 0;
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 400;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .section-title h2 {
    font-size: 32px;
  }

  .section-title p {
    font-size: 16px;
  }
}

/*--------------------------------------------------------------
# Hero Section — Apple Keynote style
--------------------------------------------------------------*/
.hero {
  width: 100%;
  min-height: 100vh;
  position: relative;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, #0a1628 0%, #000000 100%);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(41, 151, 255, 0.08) 0%, transparent 70%);
  transform: translate(-50%, -60%);
  z-index: 1;
  pointer-events: none;
}

.hero img.hero-bg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.25;
}

.hero:before {
  content: "";
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.8) 100%);
  position: absolute;
  inset: 0;
  z-index: 2;
}

.hero .container {
  position: relative;
  z-index: 3;
}

.hero h2 {
  margin: 0;
  font-size: 64px;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: #f5f5f7;
}

.hero h2 span {
  background: linear-gradient(135deg, #2997ff 0%, #5ac8fa 50%, #64d2ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .hero-subtitle {
  color: var(--text-secondary);
  margin: 20px 0 0 0;
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.hero .hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 980px;
  background: rgba(41, 151, 255, 0.12);
  border: 1px solid rgba(41, 151, 255, 0.2);
  color: var(--accent-color);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

@media (max-width: 768px) {
  .hero h2 {
    font-size: 36px;
    line-height: 1.15;
  }

  .hero .hero-subtitle {
    font-size: 17px;
    line-height: 1.4;
  }
}

.hero .about-info {
  overflow: hidden;
  position: relative;
  padding: 64px 0 48px 0;
  z-index: 3;
  width: 100%;
  margin-top: auto;
}

.hero .about-info:before {
  content: "";
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
  position: absolute;
  inset: 0;
}

.hero .about-info h2 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #fff;
  letter-spacing: -0.02em;
}

.hero .about-info h3 {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--accent-color);
  letter-spacing: 0.08em;
}

.hero .about-info p {
  font-size: 15px;
  margin-bottom: 16px;
  color: rgba(245, 245, 247, 0.7);
  line-height: 1.6;
}

/*--------------------------------------------------------------
# Overview Section — Clean Apple layout
--------------------------------------------------------------*/
.overview {
  --background-color: #000000;
  --heading-color: #f5f5f7;
  --default-color: #f5f5f7;
}

.overview h3 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 32px;
  color: var(--heading-color);
  letter-spacing: -0.02em;
}

.overview ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.overview > .container > ul > li {
  padding: 24px 0;
  border-bottom: 1px solid var(--border-color);
}

.overview > .container > ul > li:last-child {
  border-bottom: none;
}

.overview > .container > ul > li > strong {
  font-size: 18px;
  font-weight: 600;
  color: var(--heading-color);
  display: block;
  margin-bottom: 12px;
}

.overview > .container > ul > li > ul {
  padding-left: 0;
}

.overview > .container > ul > li > ul > li {
  position: relative;
  padding: 6px 0 6px 20px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

.overview > .container > ul > li > ul > li:before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-color);
}

/*--------------------------------------------------------------
# CFP Section
--------------------------------------------------------------*/
.cfp {
  --background-color: #000000;
  --heading-color: #f5f5f7;
  --default-color: #f5f5f7;
}

.cfp .container h3 {
  font-size: 22px;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 20px;
  color: var(--heading-color);
  letter-spacing: -0.02em;
}

.cfp .container h3:first-child {
  margin-top: 0;
}

.cfp .container ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.cfp .container ul > li {
  position: relative;
  padding: 12px 0 12px 24px;
  color: rgba(245, 245, 247, 0.8);
  font-size: 15px;
  line-height: 1.7;
  border-bottom: 1px solid var(--border-color);
}

.cfp .container ul > li:last-child {
  border-bottom: none;
}

.cfp .container ul > li:before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-color);
}

.cfp .container ul > li strong {
  color: #f5f5f7;
  font-weight: 600;
}

.cfp .container p {
  color: rgba(245, 245, 247, 0.8);
  font-size: 15px;
  line-height: 1.7;
}

.cfp .container p a {
  color: var(--accent-color);
  font-weight: 500;
}

/*--------------------------------------------------------------
# Speakers Section — Apple-style circular cards
--------------------------------------------------------------*/
.speakers {
  --default-color: #f5f5f7;
  --background-color: #000000;
}

.speakers .member {
  text-align: center;
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 40px 20px 32px 20px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.speakers .member:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.speakers .member img {
  width: 140px;
  height: 140px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  border-radius: 50%;
  margin: 0 auto 20px auto;
  border: 3px solid rgba(255, 255, 255, 0.1);
}

.speakers .member .member-info {
  position: relative;
  padding: 0;
  inset: auto;
  background: transparent;
  transition: none;
}

.speakers .member .member-info-content h4 {
  color: #f5f5f7;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.speakers .member .member-info-content h4 a {
  color: #f5f5f7;
  transition: color 0.3s ease;
}

.speakers .member .member-info-content h4 a:hover {
  color: var(--accent-color);
}

.speakers .member .member-info-content span {
  font-style: normal;
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 400;
}

.speakers .member .social {
  display: none;
}

.speakers .member:hover .member-info {
  bottom: auto;
}

.speakers .talk-title {
  color: var(--text-secondary);
  text-align: center;
}

@media (min-width: 1200px) {
  .speakers .row.five-per-row > [class*="col-"] {
    flex: 0 0 20%;
    max-width: 20%;
  }
}

/*--------------------------------------------------------------
# Schedule Section
--------------------------------------------------------------*/
.schedule {
  --background-color: #000000;
  --heading-color: #f5f5f7;
  --default-color: #f5f5f7;
}

.schedule .nav-tabs {
  text-align: center;
  margin: auto;
  display: block;
  border-bottom: 0;
  margin-bottom: 30px;
}

.schedule .nav-tabs li {
  display: inline-block;
  margin-bottom: 0;
}

.schedule .nav-tabs a {
  border: none;
  border-radius: 980px;
  font-weight: 500;
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  padding: 10px 40px;
  font-size: 14px;
  transition: all 0.3s ease;
}

.schedule .nav-tabs a.active {
  background-color: var(--accent-color);
  color: #fff;
}

.schedule .tab-pane {
  transition: ease-in-out 0.2s;
}

.schedule .schedule-item {
  border-bottom: 1px solid var(--border-color);
  padding: 20px 0;
  transition: all 0.3s ease;
  border-radius: 12px;
  margin-bottom: 2px;
}

.schedule .schedule-item:hover {
  background: rgba(255, 255, 255, 0.02);
  padding-left: 16px;
  padding-right: 16px;
}

.schedule .schedule-item time {
  padding-bottom: 5px;
  display: inline-block;
  color: var(--accent-color);
  font-weight: 500;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.schedule .schedule-item .speaker {
  width: 48px;
  height: 48px;
  overflow: hidden;
  border-radius: 50%;
  float: left;
  margin: 0 10px 10px 0;
}

.schedule .schedule-item .speaker img {
  height: 100%;
  transform: translateX(-50%);
  margin-left: 50%;
  transition: all ease-in-out 0.3s;
}

.schedule .schedule-item h4 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--heading-color);
  letter-spacing: -0.01em;
}

.schedule .schedule-item h4 span {
  font-style: normal;
  color: var(--text-secondary);
  font-weight: 400;
  font-size: 15px;
}

.schedule .schedule-item p {
  font-style: normal;
  color: var(--text-secondary);
  margin-bottom: 0;
  font-size: 14px;
}

/*--------------------------------------------------------------
# Venue Section
--------------------------------------------------------------*/
.venue .venue-info {
  background-size: cover;
  position: relative;
  padding: 60px;
  border-radius: 20px;
  overflow: hidden;
}

.venue .venue-info:before {
  content: "";
  background: rgba(0, 0, 0, 0.6);
  position: absolute;
  inset: 0;
  border-radius: 20px;
}

.venue .venue-info h3 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
}

.venue .venue-info p {
  color: rgba(245, 245, 247, 0.7);
}

/*--------------------------------------------------------------
# Contact Section
--------------------------------------------------------------*/
.contact .info-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  transition: all 0.3s ease;
}

.contact .info-item:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.1);
}

.contact .info-item i {
  font-size: 24px;
  color: var(--accent-color);
  width: 56px;
  height: 56px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  margin: 0 auto 16px auto;
  background: rgba(41, 151, 255, 0.1);
}

.contact .info-item h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px 0;
}

.contact .info-item p {
  padding: 0;
  margin-bottom: 0;
  font-size: 14px;
  color: var(--text-secondary);
}

/*--------------------------------------------------------------
# Divider between sections
--------------------------------------------------------------*/
.section-divider {
  height: 1px;
  background: var(--border-color);
  max-width: 680px;
  margin: 0 auto;
}

/*--------------------------------------------------------------
# Custom utilities
--------------------------------------------------------------*/
.text-gradient {
  background: linear-gradient(135deg, #2997ff, #5ac8fa, #64d2ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  padding: 32px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/*--------------------------------------------------------------
# Light section variant — for alternate sections
--------------------------------------------------------------*/
.section.light-section {
  --background-color: #fbfbfd;
  --heading-color: #1d1d1f;
  --default-color: #1d1d1f;
  --text-secondary: #6e6e73;
  --border-color: rgba(0, 0, 0, 0.06);
  --accent-color: #0071e3;
  background-color: #fbfbfd;
}

.section.light-section .section-title h2 {
  background: linear-gradient(180deg, #1d1d1f 0%, #6e6e73 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section.light-section .section-title p {
  color: #6e6e73;
}

/* Ensure overview and cfp lists adapt in light sections */
.section.light-section ul > li {
  color: #424245;
}

.section.light-section ul > li strong {
  color: #1d1d1f;
}

.section.light-section .cfp .container p,
.section.light-section .cfp .container ul > li {
  color: #424245;
}