/* Professor Atef Allam - Professional Medical Website */

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

html {
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 30%, #2c2c2c 70%, #000000 100%);
  background-attachment: fixed;
  min-height: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 30%, #2c2c2c 70%, #000000 100%);
  background-attachment: fixed;
  font-family: 'Roboto', sans-serif;
  color: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.02) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.015) 0%, transparent 50%);
  opacity: 0.4;
  pointer-events: none;
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, 
    transparent 0%, 
    rgba(255,255,255,0.005) 25%, 
    transparent 50%, 
    rgba(255,255,255,0.005) 75%, 
    transparent 100%);
  animation: shimmer 8s ease-in-out infinite;
  pointer-events: none;
  z-index: -1;
}

@keyframes shimmer {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

.main-navigation {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 30%, #2c2c2c 70%, #000000 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  height: 80px;
}

.main-navigation.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
}

.nav-brand a {
  font-family: 'Lato', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  transition: all 0.3s ease;
  letter-spacing: 1px;
}

.nav-brand a:hover {
  color: #74b9ff;
  text-shadow: 0 0 20px rgba(116, 185, 255, 0.5);
  transform: translateY(-2px);
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-family: 'Open Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: #ffffff;
  text-decoration: none;
  padding: 0.8rem 1.2rem;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s;
}

.nav-link:hover::before {
  left: 100%;
}

.nav-link:hover {
  color: #74b9ff;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(116, 185, 255, 0.3);
}

.dropdown-container {
  position: relative;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dropdown-toggle i {
  font-size: 0.8rem;
  transition: transform 0.3s ease;
}

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

.mega-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  padding: 2rem;
  min-width: 900px;
  max-width: calc(100vw - 4rem);
  width: max-content;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateX(-50%) translateY(-10px);
  z-index: 10001;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

/* JavaScript will handle smart positioning dynamically */

/* Smart positioning for dropdowns near screen edges */
.dropdown-container:last-child .mega-dropdown,
.dropdown-container:nth-last-child(2) .mega-dropdown {
  left: auto;
  right: 0;
  transform: translateX(0);
}

.dropdown-container:hover .mega-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-container:last-child:hover .mega-dropdown,
.dropdown-container:nth-last-child(2):hover .mega-dropdown {
  transform: translateX(0) translateY(0);
}

/* Responsive dropdown sizing */
@media (max-width: 1200px) {
  .mega-dropdown {
    min-width: 700px;
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .mega-dropdown {
    min-width: 600px;
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 700px) {
  .mega-dropdown {
    min-width: 90vw;
    left: 50%;
    right: auto;
    transform: translateX(-50%) translateY(-10px);
    grid-template-columns: 1fr;
  }
  
  .nav-item:last-child .mega-dropdown,
  .nav-item:nth-last-child(2) .mega-dropdown,
  .nav-item:nth-last-child(3) .mega-dropdown {
    left: 50%;
    right: auto;
    transform: translateX(-50%) translateY(-10px);
  }

}

/* Hover state will be handled dynamically by JavaScript */

.dropdown-section h4 {
  font-family: 'Lato', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: #74b9ff;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(116, 185, 255, 0.3);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

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

.dropdown-subsection li {
  margin-bottom: 0.5rem;
}

.dropdown-subsection a {
  font-family: 'Open Sans', sans-serif;
  font-size: 0.9rem;
  color: #ffffff;
  text-decoration: none;
  padding: 0.5rem 0.8rem;
  border-radius: 6px;
  transition: all 0.3s ease;
  display: block;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.dropdown-subsection a:hover {
  color: #74b9ff;
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(5px);
}

/* Apple-style Mobile Navigation - Will be replaced */

.hero-header-combined {
  min-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  padding-top: 80px;
  padding-bottom: 200px; /* space reserved for stats row fixed to bottom */
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 30%, #2c2c2c 70%, #000000 100%);
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.tagline1 {
  font-family: 'Lato', sans-serif;
  font-size: 1.2rem;
  font-weight: 300;
  color: #74b9ff;
  margin-bottom: 1rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 1s ease-out;
}

.tagline2 {
  font-family: 'Lato', sans-serif;
  font-size: clamp(1rem, 5.2vw, 4.5rem);
  font-weight: 700;
  color: #ffffff; /* Fallback for older browsers */
  margin: 0 auto 2rem auto;
  text-shadow: 0 6px 18px rgba(0, 0, 0, 0.45), 0 0 1px rgba(255, 255, 255, 0.2);
  animation: fadeInUp 1s ease-out 0.2s both;
  letter-spacing: 0.02em;
  white-space: nowrap;
  line-height: 1.1;
  background-image: linear-gradient(180deg, #ffffff 0%, #e9eefb 55%, #a7c0ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  position: relative;
  z-index: 2;
}

.tagline2::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: -16px;
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(116, 185, 255, 0.4) 15%, 
    #74b9ff 30%, 
    rgba(116, 185, 255, 0.9) 50%, 
    #74b9ff 70%,
    rgba(116, 185, 255, 0.4) 85%, 
    transparent 100%
  );
  border-radius: 2px;
  box-shadow: 0 0 15px rgba(116, 185, 255, 0.5);
  opacity: 0.9;
  z-index: 1;
  pointer-events: none;
}

.professional-slogan {
  font-family: 'Open Sans', sans-serif;
  font-size: 1.3rem;
  font-weight: 400;
  color: #cccccc;
  margin-bottom: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 1s ease-out 0.4s both;
  font-style: italic;
}

.hero-stats {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 24px;
  width: 100%;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: 1fr;
  gap: 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
  animation: fadeInUp 1s ease-out 0.6s both;
  z-index: 2;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.stat-item {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.03) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  padding: 1.5rem 1rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 100px;
  height: 100px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-width: 0;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(116, 185, 255, 0.08) 0%, 
    transparent 25%, 
    rgba(116, 185, 255, 0.04) 50%, 
    transparent 75%, 
    rgba(116, 185, 255, 0.08) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.stat-item:hover::before {
  opacity: 1;
}

.stat-item:hover {
  transform: translateY(-8px);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.05) 100%);
  border-color: rgba(116, 185, 255, 0.4);
  box-shadow: 
    0 20px 50px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(116, 185, 255, 0.2);
}

.stat-number {
  font-family: 'Lato', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: #74b9ff;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.stat-label {
  font-family: 'Open Sans', sans-serif;
  font-size: 0.9rem;
  color: #cccccc;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.container-fluid {
  padding: 4rem 2rem;
}

.section-banner {
  margin-bottom: 3rem;
}

.section-banner .col-md-offset-3 {
  margin-left: 25%;
}

.section-banner .col-md-6 {
  width: 50%;
}

/* ========================================
   UNIFIED CARD SYSTEM - CONSISTENT HARMONY
   ======================================== */

/* Universal Card Base Styles */
.unified-card-base {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  flex-direction: column;
}

.unified-card-base::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(116, 185, 255, 0.05) 0%, 
    transparent 25%, 
    rgba(116, 185, 255, 0.02) 50%, 
    transparent 75%, 
    rgba(116, 185, 255, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.unified-card-base:hover::before {
  opacity: 1;
}

.unified-card-base:hover {
  transform: translateY(-10px);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%);
  border-color: rgba(116, 185, 255, 0.3);
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(116, 185, 255, 0.1);
}

/* Universal Grid System */
.unified-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2rem;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Override Bootstrap columns for unified grid */
.unified-grid > [class*="col-"] {
  width: auto !important;
  flex: none !important;
  max-width: none !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}

/* ========================================
   ELEGANT LINE STYLING SYSTEM
   ======================================== */

.line {
  display: inline-block;
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    #74b9ff 15%, 
    rgba(116, 185, 255, 0.9) 50%, 
    #74b9ff 85%, 
    transparent 100%
  );
  margin: 0 1.5rem;
  vertical-align: middle;
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(116, 185, 255, 0.4);
  position: relative;
  animation: elegant-glow 3s ease-in-out infinite alternate;
}

@keyframes elegant-glow {
  0% { 
    box-shadow: 0 0 12px rgba(116, 185, 255, 0.4);
    opacity: 0.8;
  }
  100% { 
    box-shadow: 0 0 20px rgba(116, 185, 255, 0.6);
    opacity: 1;
  }
}

/* Elegant Section Dividers */
.elegant-divider {
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(116, 185, 255, 0.3) 10%,
    #74b9ff 30%, 
    rgba(116, 185, 255, 0.9) 50%, 
    #74b9ff 70%,
    rgba(116, 185, 255, 0.3) 90%, 
    transparent 100%
  );
  margin: 3rem auto;
  border-radius: 2px;
  box-shadow: 0 0 15px rgba(116, 185, 255, 0.3);
  position: relative;
}

.elegant-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: #74b9ff;
  border-radius: 50%;
  box-shadow: 0 0 15px rgba(116, 185, 255, 0.8);
}

/* Short elegant lines for content sections */
.content-divider {
  width: 120px;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    #74b9ff 25%, 
    rgba(116, 185, 255, 0.8) 50%, 
    #74b9ff 75%, 
    transparent 100%
  );
  margin: 2rem auto;
  border-radius: 1px;
  box-shadow: 0 0 8px rgba(116, 185, 255, 0.3);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.section-title {
  font-family: 'Lato', sans-serif;
  font-size: 2rem;
  font-weight: 600;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  margin: 0;
}

.max {
  max-width: 1200px;
  margin: 0 auto;
}

.desc {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  transition: all 0.3s ease;
}

.desc:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.icon-me {
  font-size: 3rem;
  color: #74b9ff;
  margin-bottom: 1rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.desc h3 {
  font-family: 'Lato', sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  position: relative;
  padding-bottom: 1rem;
  text-align: center;
}

.desc h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    #74b9ff 25%, 
    rgba(116, 185, 255, 0.8) 50%, 
    #74b9ff 75%, 
    transparent 100%
  );
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(116, 185, 255, 0.3);
}

.desc p {
  font-family: 'Open Sans', sans-serif;
  font-size: 1rem;
  color: #cccccc;
  line-height: 1.8;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.professional-photo-section {
  margin-top: 3rem;
}

.professional-photo {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
}

.professional-photo img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.bio-content h3 {
  font-family: 'Lato', sans-serif;
  font-size: 2rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 1rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.bio-content .lead {
  font-family: 'Open Sans', sans-serif;
  font-size: 1.2rem;
  color: #cccccc;
  line-height: 1.8;
  margin-bottom: 2rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.credentials h4 {
  font-family: 'Lato', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: #74b9ff;
  margin-bottom: 1rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

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

.credentials li {
  font-family: 'Open Sans', sans-serif;
  font-size: 1rem;
  color: #cccccc;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.credentials li:last-child {
  border-bottom: none;
}

.expertise-section {
  background: rgba(255, 255, 255, 0.02);
}

/* Expertise Section Grid */
#expertise .row {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2rem;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

#expertise .row > [class*="col-"] {
  width: auto !important;
  flex: none !important;
  max-width: none !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}

.expertise-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  margin-bottom: 0;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(116, 185, 255, 0.05) 0%, 
    transparent 25%, 
    rgba(116, 185, 255, 0.02) 50%, 
    transparent 75%, 
    rgba(116, 185, 255, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.expertise-card:hover::before {
  opacity: 1;
}

.expertise-card:hover {
  transform: translateY(-10px);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%);
  border-color: rgba(116, 185, 255, 0.3);
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(116, 185, 255, 0.1);
}

.expertise-card h3 {
  font-family: 'Lato', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: #74b9ff;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  position: relative;
  padding-bottom: 1rem;
}

.expertise-card h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, 
    #74b9ff 0%, 
    rgba(116, 185, 255, 0.8) 50%, 
    transparent 100%
  );
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(116, 185, 255, 0.3);
}

.expertise-card ul {
  list-style: none;
  padding: 0;
}

.expertise-card li {
  font-family: 'Open Sans', sans-serif;
  font-size: 1rem;
  color: #cccccc;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.expertise-card li:last-child {
  border-bottom: none;
}

.publication-category, .presentation-category {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  text-align: center;
  transition: all 0.3s ease;
}

/* Publications section layout + spacing adjustments */
#publications {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

#publications .section-banner {
  margin-bottom: 2rem;
}

/* Full-width stunning publications layout */
#publications .row.max + .row.max {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2rem;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Override Bootstrap column behavior for full-width grid */
#publications .row.max + .row.max > [class*="col-"] {
  width: auto !important;
  flex: none !important;
  max-width: none !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}

/* Stunning publication cards */
#publications .publication-category {
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 320px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

#publications .publication-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(116, 185, 255, 0.05) 0%, 
    transparent 25%, 
    rgba(116, 185, 255, 0.02) 50%, 
    transparent 75%, 
    rgba(116, 185, 255, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

#publications .publication-category:hover::before {
  opacity: 1;
}

#publications .publication-category:hover {
  transform: translateY(-10px);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%);
  border-color: rgba(116, 185, 255, 0.3);
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(116, 185, 255, 0.1);
}

#publications .publication-category .btn-outline-dark {
  margin-top: auto;
  align-self: center;
  background: transparent;
  border: 2px solid #74b9ff;
  color: #74b9ff;
  padding: 0.8rem 2rem;
  border-radius: 30px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

#publications .publication-category .btn-outline-dark:hover {
  background: #74b9ff;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(116, 185, 255, 0.4);
}

/* Make the desc boxes same width as cards container */
#publications .desc,
#presentations .desc {
  max-width: 1200px !important;
  margin: 0 auto 2rem auto !important;
  padding: 2rem !important;
  box-sizing: border-box !important;
  text-align: center !important;
}

/* Presentations section layout + spacing adjustments */
#presentations {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

#presentations .section-banner {
  margin-bottom: 2rem;
}

/* Full-width stunning presentations layout */
#presentations .row.max + .row.max {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2rem;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Override Bootstrap column behavior for full-width grid */
#presentations .row.max + .row.max > [class*="col-"] {
  width: auto !important;
  flex: none !important;
  max-width: none !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}

/* Stunning presentation category cards */
#presentations .presentation-category {
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 320px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

#presentations .presentation-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(116, 185, 255, 0.05) 0%, 
    transparent 25%, 
    rgba(116, 185, 255, 0.02) 50%, 
    transparent 75%, 
    rgba(116, 185, 255, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

#presentations .presentation-category:hover::before {
  opacity: 1;
}

#presentations .presentation-category:hover {
  transform: translateY(-10px);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%);
  border-color: rgba(116, 185, 255, 0.3);
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(116, 185, 255, 0.1);
}

#presentations .presentation-category p {
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

#presentations .presentation-category .btn-outline-dark {
  margin-top: auto;
  align-self: center;
  background: transparent;
  border: 2px solid #74b9ff;
  color: #74b9ff;
  padding: 0.8rem 2rem;
  border-radius: 30px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
}

#presentations .presentation-category .btn-outline-dark:hover {
  background: #74b9ff;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(116, 185, 255, 0.4);
}



.publication-category h3, .presentation-category h3 {
  font-family: 'Lato', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: #74b9ff;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  position: relative;
  padding-bottom: 1rem;
}

.publication-category h3::after, .presentation-category h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    #74b9ff 25%, 
    rgba(116, 185, 255, 0.8) 50%, 
    #74b9ff 75%, 
    transparent 100%
  );
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(116, 185, 255, 0.3);
}

.publication-category p, .presentation-category p {
  font-family: 'Open Sans', sans-serif;
  font-size: 1rem;
  color: #cccccc;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* Individual Presentation Cards Grid - One Row Layout */
#featured-presentations {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

#featured-presentations > [class*="col-"] {
  width: auto !important;
  flex: none !important;
  max-width: none !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
}

/* Individual Presentation Cards */
.presentation-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  height: 100%;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.presentation-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(116, 185, 255, 0.05) 0%, 
    transparent 25%, 
    rgba(116, 185, 255, 0.02) 50%, 
    transparent 75%, 
    rgba(116, 185, 255, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.presentation-card:hover::before {
  opacity: 1;
}

.presentation-card:hover {
  transform: translateY(-10px);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%);
  border-color: rgba(116, 185, 255, 0.3);
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(116, 185, 255, 0.1);
}

.card-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, #3498db, #2980b9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
  transition: all 0.3s ease;
}

.card-icon i {
  font-size: 1.5rem;
  color: #ffffff;
}

.presentation-card:hover .card-icon {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(52, 152, 219, 0.5);
}

.presentation-card h3 {
  color: #ffffff;
  font-family: 'Lato', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  line-height: 1.3;
  min-height: 3.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.presentation-card p {
  color: #b0c4de;
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 1.5rem;
  flex-grow: 1;
  display: flex;
  align-items: center;
  text-align: center;
}

.presentation-card .btn-outline-primary {
  background: transparent;
  border: 2px solid #3498db;
  color: #3498db;
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  font-size: 0.85rem;
  margin-top: auto;
}

.presentation-card .btn-outline-primary:hover,
.presentation-card .btn-outline-primary:focus {
  background: linear-gradient(135deg, #3498db, #2980b9);
  border-color: #3498db;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}



/* Elegant Show Less Button */
.btn-elegant-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #b0c4de;
  padding: 0.8rem 2rem;
  border-radius: 25px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-elegant-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-elegant-secondary i {
  margin-right: 0.5rem;
  font-size: 0.85rem;
}

#show-less-container {
  display: none;
  opacity: 0;
  transition: all 0.4s ease;
}

/* Smooth transitions for show/hide */
#additional-presentations {
  display: none;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
}

#additional-presentations.show {
  max-height: 5000px;
  opacity: 1;
}

.btn-outline-dark {
  background: transparent;
  border: 2px solid #74b9ff;
  color: #74b9ff;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  font-family: 'Open Sans', sans-serif;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-block;
}

.btn-outline-dark:hover {
  background: #74b9ff;
  color: #000000;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(116, 185, 255, 0.3);
}



#social-footer {
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 2rem 0;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-divider {
  height: 3px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(116, 185, 255, 0.2) 10%,
    #74b9ff 30%, 
    rgba(116, 185, 255, 0.9) 50%, 
    #74b9ff 70%,
    rgba(116, 185, 255, 0.2) 90%, 
    transparent 100%
  );
  margin-bottom: 2rem;
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(116, 185, 255, 0.3);
  position: relative;
}

.footer-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background: #74b9ff;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(116, 185, 255, 0.6);
}

.copyright {
  font-family: 'Open Sans', sans-serif;
  font-size: 0.9rem;
  color: #cccccc;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* ========================================
   ENHANCED MOBILE-FIRST RESPONSIVE DESIGN
   ======================================== */

/* Large Desktop First (1600px+) */
@media (min-width: 1600px) {
  .container-fluid {
    max-width: 1920px;
    margin: 0 auto;
  }
  
  .hero-stats {
    grid-template-columns: repeat(6, 1fr);
    gap: 2rem;
  }
  
  .tagline2 {
    font-size: 5rem;
  }
}

/* Desktop (1280px - 1599px) */
@media (min-width: 1280px) and (max-width: 1599px) {
  .hero-stats {
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: 1fr;
    gap: 1.5rem;
  }
  
  .mega-dropdown {
    min-width: 1000px;
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Small Desktop (1024px - 1279px) */
@media (min-width: 1024px) and (max-width: 1279px) {
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  
  .mega-dropdown {
    min-width: 800px;
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* Tablet layout for presentations/publications */
  #publications .row.max + .row.max,
  #presentations .row.max + .row.max {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 1.25rem;
  }
}

/* Tablet (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .hero-stats {
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: 1fr;
    gap: 1rem;
    padding: 0 1.5rem;
  }
  
  .stat-item {
    padding: 1rem 0.5rem;
    min-height: 80px;
    height: 80px;
  }
  
  .stat-number {
    font-size: 1.8rem;
  }
  
  .stat-label {
    font-size: 0.8rem;
  }
  
  .mega-dropdown {
    min-width: 600px;
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tagline2 {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
  }
  
  .professional-slogan {
    font-size: 1.1rem;
    padding: 0 1rem;
  }
  
  /* Tablet presentations layout */
  #publications .row.max + .row.max,
  #presentations .row.max + .row.max {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)) !important;
    gap: 1.5rem;
    padding: 0 1.5rem;
  }
  
  #expertise .row {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)) !important;
    gap: 1.5rem;
    padding: 0 1.5rem;
  }
  
  #featured-presentations {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
    gap: 1.5rem;
    padding: 0 1.5rem;
  }
  
  .presentation-card {
    min-height: 280px;
  }
  
  .expertise-card {
    padding: 1.8rem;
  }
  
  .container-fluid {
    padding: 3rem 1.5rem;
  }
}

/* Mobile Large (481px - 767px) */
@media (min-width: 481px) and (max-width: 767px) {
  .hero-header-combined {
    padding-bottom: 2rem;
    min-height: auto;
    padding-top: 100px;
  }
  
  .hero-content {
    padding: 1rem;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 1rem;
    padding: 1.5rem 1rem;
  }
  
  .tagline2 {
    font-size: clamp(2rem, 7vw, 2.8rem);
    line-height: 1.1;
  }
  
  .professional-slogan {
    font-size: 1rem;
    line-height: 1.5;
    padding: 0 0.5rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .stat-label {
    font-size: 0.85rem;
  }
}

/* End of mobile media query */
}

/* Old Mobile Navigation - Removed for Apple-style menu */
  

  
  .tagline2 {
    font-size: clamp(0.9rem, 6vw, 2rem);
    letter-spacing: 0.015em;
  }
  
  .hero-stats {
    position: static;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding: 2rem 1rem;
    margin-top: 3rem;
    overflow-x: visible;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: none;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  
  .hero-stats::-webkit-scrollbar {
    display: none;
  }
  
  .hero-stats .stat-item {
    scroll-snap-align: none;
    min-width: auto;
    touch-action: manipulation;
    cursor: pointer;
    position: relative;
    padding: 1rem;
  }
  
  .hero-stats .stat-item::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, transparent, rgba(116, 185, 255, 0.3), transparent);
    border-radius: 14px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
  }
  
  .hero-stats .stat-item:hover::before,
  .hero-stats .stat-item:focus::before {
    opacity: 1;
  }
  
  .hero-stats .stat-item:active {
    transform: translateY(-3px) scale(0.98);
  }
  
  .stat-number {
    font-size: 1.8rem;
  }
  
  .stat-label {
    font-size: 0.8rem;
  }
  
  /* ========================================
     BRAND NEW TIMELINE IMPLEMENTATION
     ======================================== */
  
  /* Timeline Container */
  .career-timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
  }
  
  /* Main Timeline Line */
  .career-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, 
      #74b9ff 0%, 
      rgba(116, 185, 255, 0.9) 30%, 
      rgba(116, 185, 255, 0.7) 70%, 
      rgba(116, 185, 255, 0.4) 100%
    );
    border-radius: 2px;
    transform: translateX(-50%);
    box-shadow: 0 0 15px rgba(116, 185, 255, 0.4);
  }
  
  /* Timeline Items */
  .career-milestone {
    position: relative;
    margin-bottom: 5rem;
    display: flex;
    align-items: center;
    min-height: 200px;
  }
  
  /* Left-aligned items (odd) */
  .career-milestone:nth-child(odd) {
    justify-content: flex-start;
  }
  
  .career-milestone:nth-child(odd) .milestone-content {
    margin-right: calc(50% + 3rem);
    text-align: right;
  }
  
  .career-milestone:nth-child(odd) .milestone-year {
    left: calc(50% - 90px);
  }
  
  .career-milestone:nth-child(odd) .milestone-connector {
    left: calc(50% + 2px);
    width: calc(50% - 5rem);
    background: linear-gradient(90deg, rgba(116, 185, 255, 0.8) 0%, transparent 100%);
  }
  
  /* Right-aligned items (even) */
  .career-milestone:nth-child(even) {
    justify-content: flex-end;
  }
  
  .career-milestone:nth-child(even) .milestone-content {
    margin-left: calc(50% + 3rem);
    text-align: left;
  }
  
  .career-milestone:nth-child(even) .milestone-year {
    right: calc(50% - 90px);
  }
  
  .career-milestone:nth-child(even) .milestone-connector {
    right: calc(50% + 2px);
    width: calc(50% - 5rem);
    background: linear-gradient(270deg, rgba(116, 185, 255, 0.8) 0%, transparent 100%);
  }
  
  /* Year Badges */
  .milestone-year {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #74b9ff 0%, #5a9cdf 100%);
    color: #000000;
    padding: 1rem 1.8rem;
    border-radius: 30px;
    font-family: 'Lato', sans-serif;
    font-weight: 800;
    font-size: 1.1rem;
    text-align: center;
    white-space: nowrap;
    border: 4px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 10px 30px rgba(116, 185, 255, 0.6);
    z-index: 10;
    letter-spacing: 0.8px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    width: 180px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .milestone-year:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 15px 40px rgba(116, 185, 255, 0.8);
    border-color: rgba(255, 255, 255, 0.6);
  }
  
  /* Content Cards */
  .milestone-content {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 3rem;
    width: calc(50% - 4rem);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  
  .milestone-content:hover {
    transform: translateY(-10px) scale(1.02);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.3);
  }
  
  /* Content Typography */
  .milestone-title {
    font-family: 'Lato', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1.5rem;
    line-height: 1.3;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
    position: relative;
  }
  
  .milestone-title::after {
    content: '';
    position: absolute;
    bottom: -0.8rem;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, 
      transparent 0%, 
      #74b9ff 20%, 
      rgba(116, 185, 255, 0.9) 50%, 
      #74b9ff 80%, 
      transparent 100%
    );
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(116, 185, 255, 0.4);
  }
  
  /* Left-aligned title underline */
  .career-milestone:nth-child(odd) .milestone-title::after {
    right: 0;
  }
  
  /* Right-aligned title underline */
  .career-milestone:nth-child(even) .milestone-title::after {
    left: 0;
  }
  
  .milestone-description {
    font-family: 'Open Sans', sans-serif;
    font-size: 1.2rem;
    color: #f0f0f0;
    line-height: 1.8;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
    margin: 0;
    font-weight: 400;
    letter-spacing: 0.4px;
  }
  
  /* Connector Lines */
  .milestone-connector {
    position: absolute;
    top: 50%;
    height: 4px;
    transform: translateY(-50%);
    border-radius: 2px;
    z-index: 1;
    box-shadow: 0 0 10px rgba(116, 185, 255, 0.4);
  }
  
  /* Mobile Responsive */
  @media (max-width: 768px) {
    .career-timeline {
      padding: 2rem 1rem;
    }
    
    .career-timeline::before {
      left: 2rem;
    }
    
    .career-milestone {
      justify-content: flex-start !important;
      margin-bottom: 4rem;
      padding-left: 5rem;
      min-height: 150px;
    }
    
    .milestone-content {
      width: auto !important;
      margin: 0 !important;
      text-align: left !important;
    }
    
    .milestone-year {
      left: -2.5rem !important;
      right: auto !important;
      width: 140px;
      height: 50px;
      font-size: 0.9rem;
      padding: 0.8rem 1.2rem;
    }
    
    .milestone-connector {
      display: none;
    }
    
    .milestone-title {
      font-size: 1.5rem;
    }
    
    .milestone-description {
      font-size: 1.1rem;
    }
  }

  .section-banner .col-md-offset-3 {
    margin-left: 0;
  }
  
  .section-banner .col-md-6 {
    width: 100%;
  }
  
  /* Mobile-optimized presentations/publications */
  #publications .row.max + .row.max,
  #presentations .row.max + .row.max {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1.5rem;
    padding: 0 1rem;
  }
  
  #expertise .row {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1.5rem;
    padding: 0 1rem;
  }
  
  #featured-presentations {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1.5rem;
    padding: 0 1rem;
  }
  
  /* Mobile presentation cards container */
  #presentations .row.max {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 1rem;
  }
  
  #presentations .row.max::-webkit-scrollbar {
    display: none;
  }
  
  /* Featured presentations mobile layout */
  #featured-presentations {
    display: flex !important;
    gap: 1rem;
    padding: 0 1rem;
  }
  
  #featured-presentations > [class*="col-"] {
    flex: 0 0 280px;
    scroll-snap-align: center;
    max-width: none !important;
    width: 280px !important;
  }
  
  /* Enhanced mobile presentation cards */
  .presentation-card {
    height: auto;
    min-height: 300px;
    touch-action: manipulation;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(116, 185, 255, 0.2);
    tap-highlight-color: rgba(116, 185, 255, 0.2);
    position: relative;
    overflow: hidden;
  }
  
  .presentation-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(116, 185, 255, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
  }
  
  .presentation-card:active {
    transform: translateY(-2px) scale(0.98);
  }
  
  .presentation-card:active::after {
    opacity: 1;
  }
  
  /* Mobile-optimized card content */
  .presentation-card h3 {
    font-size: 1.1rem;
    line-height: 1.3;
    min-height: auto;
    margin-bottom: 0.8rem;
  }
  
  .presentation-card p {
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 1rem;
  }
  
  .presentation-card .btn-outline-primary {
    padding: 0.6rem 1.2rem;
    font-size: 0.8rem;
    border-width: 1.5px;
    min-height: 44px; /* Touch target minimum */
  }
  
  /* Mobile touch indicators */
  #presentations::after {
    content: '← Swipe to explore more presentations →';
    display: block;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    margin-top: 1rem;
    font-style: italic;
  }
  
  /* Better mobile text spacing */
  .professional-slogan {
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 1rem !important;
  }
  
  .professional-quote {
    font-size: 0.85rem !important;
    line-height: 1.4 !important;
    padding: 0 0.5rem !important;
    margin-top: 1rem !important;
    margin-bottom: 1.5rem !important;
  }
  
  /* Improve mobile container padding */
  .container-fluid {
    padding: 2rem 1rem;
  }
  
  /* Better mobile section spacing */
  .section-banner {
    margin-bottom: 2rem;
  }
  
  .desc {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  /* Mobile-optimized expertise cards */
  .expertise-card {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  .expertise-card h3 {
    font-size: 1.2rem;
  }
  
  .expertise-card ul {
    padding-left: 1rem;
  }
  
  .expertise-card li {
    font-size: 0.9rem;
    padding: 0.4rem 0;
  }
}

/* Mobile Small (320px - 480px) */
@media (max-width: 480px) {
  .hero-header-combined {
    padding-bottom: 2rem;
    min-height: auto;
    padding-top: 90px;
  }
  
  .hero-content {
    padding: 0.8rem;
  }
  
  .hero-stats {
    position: static;
    grid-template-columns: 1fr;
    gap: 0.8rem;
    margin-top: 2rem;
    padding: 1rem 0.5rem;
  }
  
  .hero-stats .stat-item {
    padding: 1rem 0.8rem;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
  }
  
  .tagline1 {
    font-size: 0.95rem;
    margin-bottom: 0.8rem;
  }
  
  .tagline2 {
    font-size: clamp(1.5rem, 8vw, 2rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
  }
  
  .professional-slogan {
    font-size: 0.9rem;
    line-height: 1.4;
    padding: 0 0.8rem;
    margin-bottom: 1rem;
  }
  
  .professional-quote {
    font-size: 0.8rem !important;
    line-height: 1.3 !important;
    padding: 0 0.8rem !important;
    margin-top: 0.8rem !important;
  }
  
  .stat-number {
    font-size: 1.8rem;
    margin-bottom: 0.3rem;
  }
  
  .stat-label {
    font-size: 0.75rem;
    text-align: center;
  }
  
  .nav-container {
    padding: 0 1rem;
    min-height: 70px;
  }
  
  .main-navigation {
    height: 70px;
  }
  
  .nav-brand a {
    font-size: 1.3rem;
  }
  
  /* Mobile-optimized sections */
  .container-fluid {
    padding: 2rem 1rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .desc {
    padding: 1.2rem;
    margin-bottom: 1.2rem;
  }
  
  .desc h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
  }
  
  .desc p {
    font-size: 0.9rem;
    line-height: 1.6;
  }
  
  .expertise-card {
    padding: 1.2rem;
    margin-bottom: 1.2rem;
  }
  
  .expertise-card h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
  }
  
  .expertise-card li {
    font-size: 0.85rem;
    padding: 0.3rem 0;
  }
  
  /* Mobile presentations grid */
  #featured-presentations > [class*="col-"] {
    flex: 0 0 260px;
    width: 260px !important;
  }
  
  .presentation-card {
    min-height: 280px;
    padding: 1.2rem 1rem;
  }
  
  .presentation-card h3 {
    font-size: 1rem;
    margin-bottom: 0.6rem;
  }
  
  .presentation-card p {
    font-size: 0.85rem;
    margin-bottom: 0.8rem;
  }
  
  .card-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 1rem;
  }
  
  .card-icon i {
    font-size: 1.2rem;
  }
  
  /* Improve mobile button spacing */
  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }
  
  /* Better mobile card spacing */
  .presentation-card {
    padding: 1.5rem 1rem;
  }
  
  .presentation-card h3 {
    font-size: 1.1rem;
    min-height: auto;
  }
  
  .presentation-card p {
    font-size: 0.85rem;
  }
  
  /* Add touch feedback for mobile nav items */
  .nav-item {
    -webkit-tap-highlight-color: rgba(116, 185, 255, 0.2);
    tap-highlight-color: rgba(116, 185, 255, 0.2);
  }
  
  .nav-link:active {
    transform: translateX(8px) scale(0.98);
    background: rgba(116, 185, 255, 0.2);
  }
  
  /* Improve mobile menu scrolling and touch */
  .nav-menu {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }
  
  .nav-menu::-webkit-scrollbar {
    width: 4px;
  }
  
  .nav-menu::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
  }
  
  .nav-menu::-webkit-scrollbar-thumb {
    background: rgba(116, 185, 255, 0.5);
    border-radius: 2px;
  }
  
  .nav-menu::-webkit-scrollbar-thumb:hover {
    background: rgba(116, 185, 255, 0.7);
  }
}

/* ========================================
   ACCESSIBILITY & REDUCED MOTION
   ======================================== */

/* Respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .hero-stats .stat-item:hover {
    transform: none;
  }
  
  .presentation-card:hover {
    transform: none;
  }
  
  .nav-link:hover {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .nav-link {
    border: 2px solid transparent;
  }
  
  .nav-link:hover,
  .nav-link:focus {
    border-color: #74b9ff;
    background: #000000;
  }
  
  .presentation-card {
    border: 2px solid rgba(255, 255, 255, 0.3);
  }
  
  .btn-outline-primary {
    border-width: 3px;
  }
}

/* Focus management for keyboard users */
.nav-link:focus,
.presentation-card:focus,
.btn:focus {
  outline: 3px solid #74b9ff;
  outline-offset: 2px;
}

/* Skip to content link for accessibility */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 6px;
  background: #74b9ff;
  color: #000000;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 10001;
  font-weight: 600;
}

.skip-to-content:focus {
  top: 6px;
}

/* ========================================
   TABLE STYLING FOR PRESENTATIONS
   ======================================== */

.table-container {
  margin: 2rem 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.content-section table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  overflow: hidden;
  font-family: 'Open Sans', sans-serif;
}

.content-section table thead {
  background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
}

.content-section table thead th {
  padding: 1.2rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 1rem;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.2);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.content-section table tbody tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.content-section table tbody tr:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

.content-section table tbody tr:last-child {
  border-bottom: none;
}

.content-section table tbody td {
  padding: 1rem;
  vertical-align: top;
  color: #ffffff;
  font-size: 0.95rem;
  line-height: 1.5;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.content-section table tbody td:first-child {
  font-weight: 600;
  color: #74b9ff;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.content-section table tbody td strong {
  color: #74b9ff;
  font-weight: 600;
}

/* Responsive table styling */
@media (max-width: 768px) {
  .table-container {
    margin: 1.5rem -1rem;
    border-radius: 0;
  }
  
  .content-section table {
    border-radius: 0;
    font-size: 0.9rem;
  }
  
  .content-section table thead th {
    padding: 1rem 0.8rem;
    font-size: 0.9rem;
  }
  
  .content-section table tbody td {
    padding: 0.8rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .content-section table {
    font-size: 0.8rem;
  }
  
  .content-section table thead th {
    padding: 0.8rem 0.6rem;
    font-size: 0.8rem;
  }
  
  .content-section table tbody td {
    padding: 0.6rem;
    font-size: 0.8rem;
  }
}

/* Alternative: Stack table on very small screens */
@media (max-width: 400px) {
  .content-section table,
  .content-section table thead,
  .content-section table tbody,
  .content-section table th,
  .content-section table td,
  .content-section table tr {
    display: block;
  }
  
  .content-section table thead tr {
    position: absolute;
    top: -9999px;
    left: -9999px;
  }
  
  .content-section table tbody tr {
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
  }
  
  .content-section table tbody td {
    border: none;
    padding: 0.5rem 0;
    position: relative;
    padding-left: 35%;
  }
  
  .content-section table tbody td:before {
    content: attr(data-label) ": ";
    position: absolute;
    left: 0;
    width: 30%;
    padding-right: 10px;
    white-space: nowrap;
    font-weight: 600;
    color: #74b9ff;
  }
}

/* ========================================
   APPLE-STYLE MOBILE NAVIGATION SYSTEM
   ======================================== */

/* Import Nobile font for the new menu */
@import url(https://fonts.googleapis.com/css?family=Nobile);

/* Hide mobile header on desktop by default */
.header {
  display: none;
}

/* Show mobile header only on mobile devices */
@media (max-width: 767px) {
  .header {
    display: block;
    background: rgba(0, 0, 0, 0.9);
    overflow: hidden;
    height: 55px;
    width: 100%;
    z-index: 10001;
    position: fixed;
    top: 0;
    left: 0;
    transition: all 0.4s ease-out, background 1s ease-out;
  }

  .header.menu-open {
    height: 100%;
    background: #111;
    transition: all 0.45s ease-out, background 0.8s ease-out;
  }

  /* Menu List items */
  .mobile-menu {
    clear: both;
  }

  .header ul.menu {
    position: relative;
    display: block;
    padding: 0px 40px 0;
    list-style: none;
    margin: 0;
    padding-top: 60px;
  }

  .header ul.menu li.menu-item a {
    display: block;
    position: relative;
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    line-height: 2.8;
    width: 100%;
    -webkit-tap-highlight-color: transparent;
    font-family: 'Nobile', 'Open Sans', sans-serif;
  }

  .header ul.menu li.menu-item {
    border-bottom: 1px solid #333;
    margin-top: 5px;
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(0.4, 0.01, 0.165, 0.99), transform 0.5s cubic-bezier(0.4, 0.01, 0.165, 0.99);
  }

  .header ul.menu li.menu-item:nth-child(1) { transition-delay: 0.35s; }
  .header ul.menu li.menu-item:nth-child(2) { transition-delay: 0.3s; }
  .header ul.menu li.menu-item:nth-child(3) { transition-delay: 0.25s; }
  .header ul.menu li.menu-item:nth-child(4) { transition-delay: 0.2s; }
  .header ul.menu li.menu-item:nth-child(5) { transition-delay: 0.15s; }
  .header ul.menu li.menu-item:nth-child(6) { transition-delay: 0.1s; }
  .header ul.menu li.menu-item:nth-child(7) { transition-delay: 0.05s; }

  .header.menu-open ul.menu li.menu-item {
    opacity: 1;
  }

  .header.menu-open ul.menu li.menu-item:nth-child(1) { transition-delay: 0.05s; }
  .header.menu-open ul.menu li.menu-item:nth-child(2) { transition-delay: 0.1s; }
  .header.menu-open ul.menu li.menu-item:nth-child(3) { transition-delay: 0.15s; }
  .header.menu-open ul.menu li.menu-item:nth-child(4) { transition-delay: 0.2s; }
  .header.menu-open ul.menu li.menu-item:nth-child(5) { transition-delay: 0.25s; }
  .header.menu-open ul.menu li.menu-item:nth-child(6) { transition-delay: 0.3s; }
  .header.menu-open ul.menu li.menu-item:nth-child(7) { transition-delay: 0.35s; }

  /* Menu Icon */
  .icon-container {
    position: relative;
    display: inline-block;
    z-index: 10002;
    float: right;
    height: 55px;
    width: 55px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transform: rotate(0deg);
    transition: all 0.3s cubic-bezier(0.4, 0.01, 0.165, 0.99);
  }

  .icon-container #menuicon {
    width: 20px;
    height: 10px;
    position: relative;
    display: block;
    margin: -4px auto 0;
    top: 50%;
  }

  #menuicon .bar {
    width: 100%;
    height: 1px;
    display: block;
    position: relative;
    background: #fff;
    transition: all 0.3s cubic-bezier(0.4, 0.01, 0.165, 0.99);
  }

  #menuicon .bar.bar1 {
    transform: translateY(0px) rotate(0deg);
  }

  #menuicon .bar.bar2 {
    transform: translateY(6px) rotate(0deg);
  }

  .menu-open .icon-container {
    transform: rotate(90deg);
  }

  .menu-open .icon-container #menuicon .bar {
    transition: all 0.4s cubic-bezier(0.4, 0.01, 0.165, 0.99);
    transition-delay: 0.1s;
  }

  .menu-open .icon-container #menuicon .bar.bar1 {
    transform: translateY(4px) rotate(45deg);
  }

  .menu-open .icon-container #menuicon .bar.bar2 {
    transform: translateY(3px) rotate(-45deg);
  }

  /* Hide the old navigation on mobile only */
  .main-navigation {
    display: none !important;
  }

  /* Adjust hero content for new mobile header */
  .hero-header-combined {
    padding-top: 55px !important;
  }
}

/* ========================================
   PRESENTATION PAGES STYLING 
   ======================================== */

.presentation-header {
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 30%, #2c2c2c 70%, #000000 100%);
  color: #ffffff;
  padding: 120px 0 60px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.presentation-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.02) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.015) 0%, transparent 50%);
  opacity: 0.4;
  pointer-events: none;
}

.presentation-title {
  font-family: 'Lato', sans-serif;
  font-size: 3.5rem;
  font-weight: 300;
  color: #ffffff;
  margin-bottom: 15px;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 2;
}

.presentation-subtitle {
  font-family: 'Lato', sans-serif;
  font-size: 1.3rem;
  font-weight: 300;
  color: #cccccc;
  margin-bottom: 30px;
  position: relative;
  z-index: 2;
}

.presentation-meta {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.presentation-meta span {
  font-family: 'Lato', sans-serif;
  font-size: 0.95rem;
  color: #aaaaaa;
  display: flex;
  align-items: center;
  gap: 8px;
}

.presentation-meta i {
  color: #ffffff;
  opacity: 0.7;
}

.presentation-content {
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 30%, #2c2c2c 70%, #000000 100%);
  min-height: 100vh;
  color: #ffffff;
}

.content-section {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  padding: 40px;
  margin: 60px 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
  position: relative;
}

.content-section:first-child {
  margin-top: 60px;
}

.content-section:last-child {
  margin-bottom: 60px;
}

.content-section h2 {
  font-family: 'Lato', sans-serif;
  font-size: 2.2rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 25px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  border-bottom: 2px solid rgba(116, 185, 255, 0.3);
  padding-bottom: 15px;
}

.content-section h3 {
  font-family: 'Lato', sans-serif;
  font-size: 1.6rem;
  font-weight: 500;
  color: #74b9ff;
  margin: 25px 0 15px 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.content-section h4 {
  font-family: 'Lato', sans-serif;
  font-size: 1.3rem;
  font-weight: 500;
  color: #ffffff;
  margin: 20px 0 10px 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.content-text {
  font-family: 'Open Sans', sans-serif;
  font-size: 1.1rem;
  line-height: 1.8;
  color: #cccccc;
  margin-bottom: 20px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.content-section p {
  font-family: 'Open Sans', sans-serif;
  font-size: 1.1rem;
  line-height: 1.8;
  color: #cccccc;
  margin-bottom: 20px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.content-section ul, .content-section ol {
  font-family: 'Open Sans', sans-serif;
  font-size: 1.1rem;
  line-height: 1.8;
  color: #cccccc;
  margin: 20px 0;
  padding-left: 25px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.content-section li {
  margin-bottom: 10px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.challenge-box {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 25px;
  margin: 25px 0;
  border-left: 4px solid #e74c3c;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.recommendation-box {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 25px;
  margin: 25px 0;
  border-left: 4px solid #27ae60;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.key-points {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 25px;
  margin: 25px 0;
  border-left: 4px solid #74b9ff;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.medical-term {
  font-weight: 600;
  color: #74b9ff;
  text-shadow: 0 0 10px rgba(116, 185, 255, 0.3);
}

.percentage {
  background: #6c757d;
  color: white;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 600;
  font-size: 0.9em;
}

.drug-name {
  background: #495057;
  color: white;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 600;
  font-size: 0.9em;
}

.trial-name {
  background: #6c757d;
  color: white;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 600;
  font-size: 0.9em;
}

.arrow {
  color: #74b9ff;
  font-weight: bold;
  margin: 0 5px;
}

.presentation-footer {
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 2rem 0;
  margin-top: 4rem;
}

/* Presentation-specific responsive styles */
@media (max-width: 768px) {
  .presentation-title {
    font-size: 2.5rem;
  }
  
  .presentation-subtitle {
    font-size: 1.1rem;
  }
  
  .content-section {
    padding: 25px;
    margin: 40px 0;
  }
  
  .content-section h2 {
    font-size: 1.8rem;
  }
  
  .content-section h3 {
    font-size: 1.4rem;
  }
  
  .content-section h4 {
    font-size: 1.2rem;
  }
  
  .content-text, .content-section p, .content-section ul, .content-section ol {
    font-size: 1rem;
  }
  
  .presentation-meta {
    gap: 20px;
  }
  
  .presentation-meta span {
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .presentation-title {
    font-size: 2rem;
  }
  
  .presentation-subtitle {
    font-size: 1rem;
  }
  
  .content-section {
    padding: 20px;
    margin: 30px 0;
  }
  
  .content-section h2 {
    font-size: 1.6rem;
  }
  
  .content-section h3 {
    font-size: 1.3rem;
  }
  
  .content-section h4 {
    font-size: 1.1rem;
  }
  
  .content-text, .content-section p, .content-section ul, .content-section ol {
    font-size: 0.95rem;
  }
  
  .challenge-box, .recommendation-box, .key-points {
    padding: 20px;
  }
}