:root {
      /* Spacing Variables */
      --spacing-xs: 0.25rem;
      --spacing-sm: 0.5rem;
      --spacing-md: 1rem;
      --spacing-lg: 1.5rem;
      --spacing-xl: 2rem;
      --spacing-2xl: 3rem;
      --spacing-3xl: 4rem;
      --spacing-4xl: 5rem;

      /* Layout Variables */
      --container-max-width: 2000px;
      --container-padding: 1rem;
      --border-radius: 8px;

      /* Breakpoints (for reference in media queries) */
      --mobile: 480px;
      --tablet: 768px;
      --desktop: 1024px;

      /* Typography Scale */
      --font-size-xs: 0.75rem;
      --font-size-sm: 0.875rem;
      --font-size-med: 1rem;
      --font-size-base: 1.25rem;
      --font-size-lg: 1.5rem;
      --font-size-xl: 1.75rem;
      --font-size-2xl: 2.5rem;
      --font-size-3xl: 3.5rem;
      --font-size-4xl: 4.5rem;
      --font-size-5xl: 5.5rem;

      /* D4PG Brand Colors */
      --d4pg-navy: #051335;
      --d4pg-blue: #1f3070;
      --d4pg-light-blue: #989fd5;
      --d4pg-coral: #ff7f6d;
      --d4pg-yellow: #f3e04b;
      --d4pg-green: #4adb97;
      --d4pg-pink: #ff3dc8;
      --d4pg-white: #ffffff;

      /* Font Families */
      --font-primary: "All Round Gothic", Arial, sans-serif;
      --font-secondary: "Proxima Nova", sans-serif;
      --font-accent: "Poppins", "Helvetica Neue", Arial, sans-serif;
  }

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

  body {
      font-family: var(--font-primary);
      color: var(--d4pg-white);
      background-color: var(--d4pg-navy);
      line-height: 1.6;
      min-height: 100vh;
      margin: 0;
      padding: 0;
  }

  /* Typography Styles */
  h1, h2, h3 {
      font-family: var(--font-accent);
      font-weight: bold;
  }

  h2 {
      text-transform: uppercase;
      letter-spacing: 0.5px;
  }

  /* Hero Section */
  .hero-section {
      min-height: 60vh;
      background-color: var(--d4pg-light-blue);
      background-image: url('https://images.squarespace-cdn.com/content/5b9081c58ab7224793278e1d/e4dc25b9-e87d-40b7-85ae-ef6905c20f90/B1-Blank.png?content-type=image%2Fpng');
      background-size: cover;
      background-position: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: var(--spacing-4xl) 0;
      position: relative;
      text-align: center;
  }

  .hero-container {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      height: 100%;
      max-width: 1000px;
      padding: var(--spacing-2xl) 0;
  }

  .hero-logo {
      margin-bottom: var(--spacing-2xl);
      max-width: 250px;
  }

  .hero-logo img {
      width: 100%;
      height: auto;
  }

  .hero-tagline {
      font-size: var(--font-size-4xl);
      font-weight: bold;
      color: var(--d4pg-white);
      text-transform: uppercase;
      margin-bottom: var(--spacing-2xl);
  }

  /* Word cloud styles */
  .word-cloud {
      position: absolute;
      top: var(--spacing-xl);
      left: 0;
      width: 100%;
      overflow: hidden;
      white-space: nowrap;
      font-size: 1.2rem;
      font-family: 'Quicksand', sans-serif;
      color: rgba(255, 255, 255, 0.8);
      padding: var(--spacing-md) 0;
      height: 50px;
      -webkit-mask-image: linear-gradient(to right, transparent 0%, white 10%, white 90%, transparent 100%);
      mask-image: linear-gradient(to right, transparent 0%, white 10%, white 90%, transparent 100%);
  }

  .word-cloud-content {
      display: inline-block;
      padding-right: 50px;
      animation: wave-scroll 60s linear infinite;
      position: relative;
  }

  @keyframes wave-scroll {
      0% { 
          transform: translateX(0) translateY(0); 
      }
      25% { 
          transform: translateX(-25%) translateY(8px); 
      }
      50% { 
          transform: translateX(-50%) translateY(0); 
      }
      75% { 
          transform: translateX(-75%) translateY(-8px); 
      }
      100% { 
          transform: translateX(-100%) translateY(0); 
      }
  }

  .word-cloud-word {
      display: inline-block;
      padding: 0 15px;
      animation: word-float 8s ease-in-out infinite;
      animation-delay: calc(var(--delay) * 1s);
  }

  @keyframes word-float {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(calc(var(--float-y) * 1px)); }
  }

  /* Navigation Breadcrumb */
  .nav-breadcrumb {
      background: linear-gradient(135deg, var(--d4pg-navy) 0%, var(--d4pg-blue) 100%);
      padding: var(--spacing-md) var(--spacing-xl);
      display: flex;
      align-items: center;
      gap: var(--spacing-sm);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      position: sticky;
      top: 0;
      z-index: 150;
      border-bottom: 2px solid rgba(255, 137, 119, 0.3);
  }

  .nav-breadcrumb a {
      color: var(--d4pg-white);
      text-decoration: none;
      font-size: var(--font-size-med);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: var(--spacing-xs);
      transition: all 0.3s ease;
      padding: var(--spacing-xs) var(--spacing-sm);
      border-radius: 6px;
  }

  .nav-breadcrumb a:hover {
      color: var(--d4pg-coral);
      background: rgba(255, 255, 255, 0.1);
      transform: translateX(-2px);
  }

  .nav-breadcrumb .separator {
      color: var(--d4pg-light-blue);
      font-size: var(--font-size-lg);
      margin: 0 var(--spacing-xs);
  }

  .nav-breadcrumb .current-page {
      color: var(--d4pg-yellow);
      font-weight: bold;
      font-size: var(--font-size-med);
  }

  @media screen and (max-width: 768px) {
      .nav-breadcrumb {
          padding: var(--spacing-sm) var(--spacing-md);
          flex-wrap: wrap;
      }
      
      .nav-breadcrumb a {
          font-size: var(--font-size-sm);
      }
      
      .nav-breadcrumb .separator {
          font-size: var(--font-size-med);
      }
      
      .nav-breadcrumb .current-page {
          font-size: var(--font-size-sm);
      }
  }

  /* Enhanced Navigation */
  .nav-section {
      position: sticky;
      top: 0;
      width: 100%;
      background: linear-gradient(135deg, var(--d4pg-navy) 0%, var(--d4pg-blue) 100%);
      padding: var(--spacing-md) 0;
      z-index: 100;
      border-bottom: 2px solid var(--d4pg-coral);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
      backdrop-filter: blur(10px);
  }

  .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      max-width: var(--container-max-width);
      margin: 0 auto;
      padding: 0 var(--container-padding);
  }

  .nav-logo {
      display: flex;
      align-items: center;
      gap: var(--spacing-md);
  }

  .nav-logo img {
      height: 40px;
      width: auto;
  }

  .nav-brand {
      font-family: var(--font-accent);
      font-size: var(--font-size-lg);
      font-weight: bold;
      color: var(--d4pg-white);
      text-decoration: none;
      transition: color 0.3s ease;
  }

  .nav-brand:hover {
      color: var(--d4pg-coral);
  }

  .nav-links {
      display: flex;
      align-items: center;
      gap: var(--spacing-xl);
  }

  .nav-links a {
      color: var(--d4pg-white);
      text-decoration: none;
      font-family: var(--font-accent);
      font-size: var(--font-size-med);
      font-weight: 500;
      padding: var(--spacing-sm) var(--spacing-md);
      border-radius: 20px;
      position: relative;
      transition: all 0.3s ease;
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(5px);
  }

  .nav-links a:hover {
      color: var(--d4pg-navy);
      background: var(--d4pg-coral);
      transform: translateY(-2px);
      box-shadow: 0 4px 15px rgba(255, 127, 109, 0.4);
  }

  .nav-schedule-btn {
      background: linear-gradient(135deg, var(--d4pg-coral) 0%, #ff6a54 100%);
      color: white;
      border: none;
      padding: var(--spacing-sm) var(--spacing-lg);
      border-radius: 25px;
      font-family: var(--font-accent);
      font-size: var(--font-size-med);
      font-weight: bold;
      cursor: pointer;
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      gap: var(--spacing-sm);
      box-shadow: 0 4px 15px rgba(255, 127, 109, 0.3);
  }

  .nav-schedule-btn:hover {
      background: linear-gradient(135deg, var(--d4pg-yellow) 0%, #f0d843 100%);
      color: var(--d4pg-navy);
      transform: translateY(-3px);
      box-shadow: 0 6px 20px rgba(243, 224, 75, 0.4);
  }

  .nav-schedule-btn .btn-icon {
      font-size: var(--font-size-lg);
      animation: pulse 2s infinite;
  }

  @keyframes pulse {
      0%, 100% { transform: scale(1); }
      50% { transform: scale(1.1); }
  }

  /* Mobile Schedule Sidebar Styles */
  .schedule-sidebar {
      position: fixed;
      top: 0;
      left: -400px;
      width: 400px;
      height: 100vh;
      background-color: #ffffff;
      z-index: 1000;
      transition: left 0.3s ease;
      box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
      border-right: 1px solid #ddd;
  }

  .schedule-sidebar.open {
      left: 0;
  }

  .schedule-sidebar-header {
      background-color: var(--d4pg-navy);
      color: white;
      padding: var(--spacing-lg);
      display: flex;
      justify-content: flex-end;
      align-items: center;
      border-bottom: 1px solid #ddd;
      min-height: 40px;
      max-height: 60px;
  }

  .schedule-sidebar-close {
      background: rgba(255, 255, 255, 0.1);
      border: 2px solid rgba(255, 255, 255, 0.3);
      color: white;
      font-size: 1.8rem;
      font-weight: bold;
      cursor: pointer;
      padding: var(--spacing-sm);
      border-radius: 50%;
      transition: all 0.3s ease;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      line-height: 1;
  }

  .schedule-sidebar-close:hover {
      background-color: var(--d4pg-coral);
      border-color: var(--d4pg-coral);
      transform: scale(1.1);
      box-shadow: 0 0 10px rgba(255, 127, 109, 0.5);
  }

  .schedule-sidebar-content {
      height: calc(100vh - 60px);
      overflow: hidden;
  }

  .schedule-sidebar-iframe {
      width: 100%;
      height: 100%;
      border: none;
      background-color: white;
  }

  /* Overlay for when sidebar is open */
  .schedule-sidebar-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, 0.5);
      z-index: 999;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .schedule-sidebar-overlay.active {
      opacity: 1;
      visibility: visible;
  }

  /* Content section styling */
  .speakers-content {
      background-color: var(--d4pg-navy);
      padding: var(--spacing-4xl) var(--spacing-lg) var(--spacing-2xl);
      min-height: 50vh;
  }

  /* Mobile responsive navigation */
  @media screen and (max-width: 768px) {
      .nav-container {
          flex-direction: column;
          gap: var(--spacing-md);
      }

      .nav-links {
          gap: var(--spacing-md);
          flex-wrap: wrap;
          justify-content: center;
      }

      .nav-links a {
          font-size: var(--font-size-sm);
          padding: var(--spacing-xs) var(--spacing-sm);
      }

      .nav-schedule-btn {
          padding: var(--spacing-sm) var(--spacing-md);
          font-size: var(--font-size-sm);
      }

      .hero-tagline {
          font-size: var(--font-size-3xl);
      }
  }

  @media screen and (max-width: 480px) {
      .schedule-sidebar {
          width: 100vw;
          left: -100vw;
      }
      
      .schedule-sidebar.open {
          left: 0;
      }

      .nav-container {
          padding: 0 var(--spacing-sm);
      }

      .nav-links {
          flex-direction: column;
          width: 100%;
      }

      .nav-links a {
          width: 100%;
          text-align: center;
      }

      .hero-tagline {
          font-size: var(--font-size-2xl);
      }
  }

/* General Styles */
.speaker {
flex: 0 1 24%; /* Decrease the width to make images smaller */
}

.speaker img {
width: 100%;
height: auto;
display: block;
border-radius: 12px;
object-fit: cover;
}

/* Desktop Styles */
.desktop-speaker-section {
  columns: 3 320px;
  column-gap: 2.5em;
  width: 100%;
  max-width: 1600px;
  margin: 0 auto 2em auto;
}

.desktop-speaker-section .speaker {
  display: inline-block;
  width: 100%;
  margin-bottom: 2.5em;
  break-inside: avoid;
}

@media (max-width: 1200px) {
  .desktop-speaker-section {
    columns: 2 320px;
  }
}
@media (max-width: 800px) {
  .desktop-speaker-section {
    columns: 1 100%;
  }
}

/* More Speakers Message */
.more-speakers-message {
text-align: center;
font-style: italic;
margin-top: 2em;
margin-bottom: 0;
font-size: 2rem;
font-weight: 600;
font-family: 'Quicksand', sans-serif;
color: #1f3070;
}

.more-speakers-message.mobile {
margin: 1.5em auto 0;
padding: 0 1em;
white-space: normal;
}

@media (max-width: 800px) {
.speaker {
  flex: 0 1 45%; /* Adjust the width for 2 images per row */
}
}

/* Mobile Styles */
.mobile-speaker-section {
  display: none;
}

@media (max-width: 600px) {
.desktop-speaker-section {
  display: none;
}

.mobile-speaker-section {
  display: block;
  padding: 0 0.5em;
}

.mobile-speaker-section .mobile-speaker-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1em;
}

@media (max-width: 400px) {
  .mobile-speaker-section .mobile-speaker-row {
    grid-template-columns: 1fr;
  }
}

.mobile-speaker-section .speaker {
  flex: unset;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  background: rgba(255,255,255,0.03);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  padding: 0.5em 0.5em 1em 0.5em;
  box-sizing: border-box;
}

.mobile-speaker-section .speaker img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
  display: block;
  margin-bottom: 0.5em;
}
}

/* Speaker Bio Modal Styles */
.speaker-modal {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(5, 19, 53, 0.95);
z-index: 1000;
display: none;
opacity: 0;
transition: opacity 0.3s ease;
overflow-y: auto;
backdrop-filter: blur(10px);
}

.speaker-modal.active {
display: flex;
opacity: 1;
}

.speaker-modal-content {
background: linear-gradient(135deg, var(--d4pg-navy) 0%, var(--d4pg-blue) 100%);
border-radius: 20px;
max-width: 900px;
width: 90%;
margin: 2rem auto;
overflow: hidden;
position: relative;
box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
animation: modal-slide-up 0.4s ease-out;
align-self: flex-start;
}

@keyframes modal-slide-up {
from { 
  transform: translateY(50px) scale(0.95); 
  opacity: 0; 
}
to { 
  transform: translateY(0) scale(1); 
  opacity: 1; 
}
}

.speaker-modal-header {
position: relative;
background: linear-gradient(135deg, var(--d4pg-coral) 0%, var(--d4pg-pink) 100%);
padding: var(--spacing-xl);
text-align: center;
}

.speaker-modal-close {
position: absolute;
top: var(--spacing-md);
right: var(--spacing-md);
background: rgba(255, 255, 255, 0.2);
border: 2px solid rgba(255, 255, 255, 0.3);
color: white;
width: 40px;
height: 40px;
border-radius: 50%;
font-size: 1.5rem;
font-weight: bold;
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
transition: all 0.3s ease;
backdrop-filter: blur(5px);
}

.speaker-modal-close:hover {
background-color: rgba(255, 255, 255, 0.3);
transform: scale(1.1);
box-shadow: 0 0 15px rgba(255, 255, 255, 0.4);
}

.speaker-modal-photo {
width: 300px;
height: 300px;
border-radius: 20%;
margin: 0 auto var(--spacing-md);
overflow: hidden;
}

.speaker-modal-photo img {
width: 100%;
height: 100%;
object-fit: cover;
border-radius: 20%;
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.speaker-modal-name {
font-family: var(--font-accent);
font-size: var(--font-size-2xl);
font-weight: 800;
color: white;
text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.speaker-modal-title {
font-family: var(--font-accent);
font-size: var(--font-size-lg);
font-weight: 600;
color: rgba(255, 255, 255, 0.9);
text-transform: uppercase;
letter-spacing: 1px;
line-height: 1.3;
}

.speaker-pronouns {
font-family: var(--font-accent);
font-size: var(--font-size-lg);
font-weight: 600;
color: var(--d4pg-white);
text-transform: none;
letter-spacing: normal;
margin-top: var(--spacing-xs);
font-style: italic;
opacity: 0.9;
}

.speaker-modal-body {
padding: var(--spacing-xl);
}

.speaker-bio-content {
background: rgba(255, 255, 255, 0.05);
border-radius: 12px;
padding: var(--spacing-lg);
margin-bottom: var(--spacing-lg);
backdrop-filter: blur(5px);
border: 1px solid rgba(255, 255, 255, 0.1);
}

.speaker-bio-content h3 {
font-family: var(--font-accent);
font-size: var(--font-size-xl);
color: var(--d4pg-coral);
margin-bottom: var(--spacing-md);
text-transform: uppercase;
letter-spacing: 1px;
}

.speaker-bio-text {
font-size: var(--font-size-med);
line-height: 1.7;
color: var(--d4pg-white);
margin-bottom: var(--spacing-md);
}

.speaker-bio-text:first-letter {
font-size: 3.5rem;
font-weight: 800;
float: left;
line-height: 1;
margin-right: 8px;
margin-top: -2px;
color: var(--d4pg-coral);
font-family: var(--font-accent);
}

/* Rich text formatting in bios */
.speaker-bio-text a {
color: var(--d4pg-coral);
text-decoration: underline;
font-weight: 600;
transition: color 0.3s ease;
}

.speaker-bio-text a:hover {
color: var(--d4pg-yellow);
text-decoration: none;
}

.speaker-bio-text strong {
font-weight: 700;
color: var(--d4pg-light-blue);
}

.speaker-bio-text em {
font-style: italic;
color: var(--d4pg-white);
}

.speaker-bio-text code {
background: rgba(255, 255, 255, 0.1);
padding: 2px 6px;
border-radius: 4px;
font-family: 'Courier New', monospace;
font-size: 0.9em;
color: var(--d4pg-yellow);
}

.speaker-bio-text h4,
.speaker-bio-text h5 {
color: var(--d4pg-coral);
font-family: var(--font-accent);
margin: var(--spacing-md) 0 var(--spacing-sm);
text-transform: uppercase;
letter-spacing: 1px;
}

.speaker-bio-text h4 {
font-size: var(--font-size-lg);
}

.speaker-bio-text h5 {
font-size: var(--font-size-med);
}

.speaker-bio-text ul {
margin: var(--spacing-sm) 0 var(--spacing-md) var(--spacing-lg);
padding: 0;
}

.speaker-bio-text li {
margin-bottom: var(--spacing-xs);
color: var(--d4pg-white);
list-style-type: none;
position: relative;
}

.speaker-bio-text li::before {
content: '•';
color: var(--d4pg-coral);
font-weight: bold;
position: absolute;
left: -15px;
}

.speaker-social-section {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
gap: var(--spacing-lg);
margin-top: var(--spacing-lg);
}

.speaker-social-card {
background: rgba(255, 255, 255, 0.05);
border-radius: 12px;
padding: var(--spacing-lg);
backdrop-filter: blur(5px);
border: 1px solid rgba(255, 255, 255, 0.1);
transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.speaker-social-card:hover {
transform: translateY(-2px);
box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
background: rgba(255, 255, 255, 0.08);
}

.speaker-social-card h4 {
font-family: var(--font-accent);
font-size: var(--font-size-lg);
color: var(--d4pg-light-blue);
margin-bottom: var(--spacing-md);
text-transform: uppercase;
letter-spacing: 1px;
display: flex;
align-items: center;
gap: var(--spacing-sm);
}

.speaker-social-card h4::before {
content: '🔗';
font-size: 1.2rem;
}

.speaker-social-links {
display: flex;
flex-wrap: wrap;
gap: var(--spacing-sm);
}

.speaker-social-link {
display: inline-flex;
align-items: center;
gap: var(--spacing-xs);
padding: var(--spacing-xs) var(--spacing-md);
background: linear-gradient(135deg, var(--d4pg-coral), var(--d4pg-pink));
color: white;
text-decoration: none;
border-radius: 25px;
font-size: var(--font-size-sm);
font-weight: 600;
transition: all 0.3s ease;
box-shadow: 0 3px 10px rgba(255, 127, 109, 0.3);
}

.speaker-social-link:hover {
transform: translateY(-2px);
box-shadow: 0 5px 15px rgba(255, 127, 109, 0.5);
background: linear-gradient(135deg, var(--d4pg-yellow), var(--d4pg-coral));
color: var(--d4pg-navy);
}

.speaker-social-link.website {
padding: var(--spacing-xs) var(--spacing-md);
border-radius: 25px;
min-width: auto;
min-height: auto;
}

.speaker-register-section {
text-align: center;
padding: var(--spacing-xl) var(--spacing-lg);
background: linear-gradient(135deg, rgba(255, 127, 109, 0.1), rgba(255, 61, 200, 0.1));
border-radius: 12px;
margin-top: var(--spacing-lg);
border: 1px solid rgba(255, 127, 109, 0.2);
}

.speaker-register-btn {
display: inline-flex;
align-items: center;
gap: var(--spacing-sm);
padding: var(--spacing-md) var(--spacing-xl);
background: linear-gradient(135deg, var(--d4pg-coral) 0%, #ff6a54 100%);
color: white;
text-decoration: none;
border-radius: 30px;
font-family: var(--font-accent);
font-size: var(--font-size-lg);
font-weight: bold;
transition: all 0.3s ease;
box-shadow: 0 4px 15px rgba(255, 127, 109, 0.4);
text-transform: uppercase;
letter-spacing: 1px;
}

.speaker-register-btn:hover {
background: linear-gradient(135deg, var(--d4pg-yellow) 0%, #f0d843 100%);
color: var(--d4pg-navy);
transform: translateY(-3px);
box-shadow: 0 8px 25px rgba(243, 224, 75, 0.5);
}

.speaker-register-btn::before {
content: '🎓';
font-size: 1.2rem;
}

@media (max-width: 1024px) {
    .speaker-modal-photo {
    width: 200px;
    height: 200px;
    }
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
.speaker-modal-content {
  width: 95%;
  margin: 1rem auto;
}

.speaker-modal-photo {
  width: 150px;
  height: 150px;
}

.speaker-modal-header {
  padding: var(--spacing-lg);
}

.speaker-modal-name {
  font-size: var(--font-size-xl);
}

.speaker-modal-title {
  font-size: var(--font-size-med);
}

.speaker-modal-body {
  padding: var(--spacing-lg);
}

.speaker-social-section {
  grid-template-columns: 1fr;
}

.speaker-bio-text:first-letter {
  font-size: 2.5rem;
}
}

/* Interactive speaker cards */
.speaker {
cursor: pointer;
transition: transform 0.3s ease, box-shadow 0.3s ease;
position: relative;
overflow: hidden;
border-radius: 12px;
}

.speaker:hover {
transform: translateY(-5px);
box-shadow: 0 10px 30px rgba(255, 127, 109, 0.3);
}

.speaker img {
transition: transform 0.3s ease;
}

.speaker:hover img {
transform: scale(1.02);
}

/* Add loading state */
.speaker-modal-loading {
text-align: center;
padding: var(--spacing-4xl);
color: var(--d4pg-white);
}

.speaker-modal-loading::after {
content: '';
display: inline-block;
width: 40px;
height: 40px;
border: 3px solid rgba(255, 127, 109, 0.3);
border-radius: 50%;
border-top-color: var(--d4pg-coral);
animation: spin 1s ease-in-out infinite;
margin-left: var(--spacing-sm);
}

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

/* Social icon PNG styling */
.social-icon-png {
    width: 20px;
    height: 20px;
    display: inline-block;
    filter: brightness(0) invert(1); /* Make SVGs white */
    transition: filter 0.3s ease;
}

/* Adjust PNG icons in large icon containers */
.social-icon-large .social-icon-png {
    width: 24px;
    height: 24px;
}

/* Handle PNG icons in website links */
.speaker-social-link.website .social-icon-png {
    width: 16px;
    height: 16px;
    margin-right: var(--spacing-xs);
}

/* Hover effects for PNG icons */
.speaker-social-link:hover .social-icon-png {
    filter: brightness(0) saturate(100%) invert(20%) sepia(100%) saturate(2000%) hue-rotate(210deg);
}

/* Fallback for browsers that don't support complex filters */
@supports not (filter: brightness(0) invert(1)) {
    .social-icon-png {
        opacity: 0.9;
    }
    
    .speaker-social-link:hover .social-icon-png {
        opacity: 1;
    }
}

/* Icon-only social links styling */
.social-icon-large {
font-size: 1.4rem;
display: inline-block;
line-height: 1;
}

/* Adjust padding for icon-only links */
.speaker-social-link:has(.social-icon-large) {
padding: var(--spacing-sm);
min-width: 45px;
min-height: 45px;
display: inline-flex;
align-items: center;
justify-content: center;
border-radius: 50%;
}

/* Fallback for browsers that don't support :has() */
.speaker-social-link:not(.website) {
padding: var(--spacing-sm);
min-width: 45px;
min-height: 45px;
display: inline-flex;
align-items: center;
justify-content: center;
border-radius: 50%;
}

/* Bio formatting styles */
.bio-link {
  color: var(--d4pg-coral);
  text-decoration: underline;
  transition: color 0.3s ease;
  font-weight: 500;
}

.bio-link:hover {
  color: var(--d4pg-yellow);
  text-decoration: underline;
}

.bio-bold {
  color: var(--d4pg-white);
  font-weight: bold;
}

.bio-italic {
  font-style: italic;
  color: var(--d4pg-light-blue);
}

.bio-underline {
  text-decoration: underline;
  color: var(--d4pg-white);
}

/* Speaker Promotional Content Styles */
.speaker-promotional-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
}

.promotional-title {
    font-size: var(--font-size-lg);
    color: var(--d4pg-white);
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-accent);
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.promotional-books {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.promotional-book {
    display: flex;
    gap: var(--spacing-2xl);
    background: rgba(255, 255, 255, 0.08);
    border-radius: 15px;
    padding: var(--spacing-2xl);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.3s ease;
}

.promotional-book:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-3px);
    border-color: rgba(255, 127, 109, 0.4);
    box-shadow: 0 12px 35px rgba(255, 127, 109, 0.25);
}

.book-cover {
    flex-shrink: 0;
    width: 140px;
    height: 200px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
}

.promotional-book:hover .book-cover {
    transform: scale(1.03) translateY(-2px);
}

.book-cover img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center;
}

.book-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: var(--spacing-md);
}

.book-title {
    font-size: var(--font-size-xl);
    color: var(--d4pg-white);
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-accent);
    font-weight: 600;
    line-height: 1.2;
}

.book-description {
    font-size: var(--font-size-med);
    color: var(--d4pg-light-blue);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.book-purchase-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    background: linear-gradient(135deg, var(--d4pg-coral) 0%, #ff6a54 100%);
    color: var(--d4pg-white);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    text-transform: capitalize;
    transition: all 0.3s ease;
    font-size: var(--font-size-med);
    border: 2px solid transparent;
    width: fit-content;
    letter-spacing: 0.5px;
}

.book-purchase-btn:hover {
    background: linear-gradient(135deg, var(--d4pg-yellow) 0%, #f0d843 100%);
    color: var(--d4pg-navy);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(243, 224, 75, 0.4);
    border-color: rgba(255, 255, 255, 0.3);
}

.book-purchase-icon {
    font-size: var(--font-size-lg);
    transition: transform 0.3s ease;
}

.book-purchase-btn:hover .book-purchase-icon {
    transform: translateX(3px);
}

/* Mobile responsive adjustments for promotional content */
@media (max-width: 768px) {
    .promotional-book {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-xl);
        padding: var(--spacing-xl);
    }

    .book-cover {
        width: 160px;
        height: 230px;
        margin: 0 auto;
    }

    .book-content {
        align-items: center;
        padding-left: 0;
    }

    .book-purchase-btn {
        align-self: center;
        padding: var(--spacing-md) var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .speaker-promotional-section {
        padding: var(--spacing-xl);
        margin: var(--spacing-xl) 0;
    }

    .promotional-books {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .promotional-book {
        padding: var(--spacing-lg);
    }

    .book-cover {
        width: 140px;
        height: 200px;
    }

    .book-title {
        font-size: var(--font-size-lg);
    }

    .book-description {
        font-size: var(--font-size-sm);
    }

    .book-purchase-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}

.speaker-search-bar-container {
  max-width: 600px;
  margin: 0 auto 2em auto;
  text-align: center;
}
.speaker-search-bar {
  width: 100%;
  max-width: 500px;
  padding: 0.75em 1.2em;
  font-size: 1.1rem;
  border-radius: 30px;
  border: 1.5px solid var(--d4pg-coral);
  outline: none;
  background: rgba(255,255,255,0.08);
  color: var(--d4pg-white);
  margin: 0 auto;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  transition: border 0.2s, box-shadow 0.2s;
}
.speaker-search-bar:focus {
  border: 2px solid var(--d4pg-yellow);
  box-shadow: 0 4px 16px rgba(255, 224, 75, 0.13);
}
@media (max-width: 600px) {
  .speaker-search-bar-container {
    max-width: 98vw;
    margin-bottom: 1.2em;
  }
  .speaker-search-bar {
    font-size: 1rem;
    padding: 0.6em 1em;
    max-width: 98vw;
  }
}
.speaker-no-results {
  text-align: center;
  color: var(--d4pg-coral);
  font-size: 1.3rem;
  margin: 2em 0 0;
  padding-bottom: 2em;
  font-family: var(--font-accent);
  font-weight: 600;
}