:root{--bg:#ffffff;--surface:#f8fafc;--text:#1e293b;--muted:#64748b;--primary:#ef4444}
*{box-sizing:border-box}
html,body{height:100%}
body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.container{width:100%;max-width:1120px;margin:0 auto;padding:16px}
.site-header{border-bottom:1px solid #e2e8f0;background:#ffffff;position:sticky;top:0;z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand-left{display:flex;gap:10px;align-items:center;min-width:400px}
.new-logo-container{display:flex;align-items:center;gap:12px}
.isr-logo-img{width:40px;height:40px;object-fit:contain}
.tedx-text{font-size:18px;font-weight:700;color:#1e293b;letter-spacing:0.5px}
.isr-logo{display:block}
.brand-text{font-weight:700;letter-spacing:.08em;opacity:.9}
.main-nav{display:flex;align-items:center;gap:16px}
.nav-list{list-style:none;display:flex;gap:16px;margin:0;padding:0}
.nav-list a{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:8px}
.nav-list a:hover{background:#f1f5f9}
.dropdown{position:relative}
.dropdown-toggle{cursor:pointer}
.dropdown-menu{position:absolute;top:100%;left:0;background:#ffffff;border:1px solid #e2e8f0;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.1);min-width:160px;z-index:1000;display:none;padding:8px 0;margin-top:4px}
.dropdown:hover .dropdown-menu{display:block}
.dropdown-menu li{list-style:none;margin:0}
.dropdown-menu a{display:block;padding:8px 16px;color:#1e293b;text-decoration:none;font-size:14px}
.dropdown-menu a:hover{background:#f1f5f9}
.nav-search{display:flex;position:relative}
.nav-search input{background:#ffffff;border:1px solid #e2e8f0;color:var(--text);padding:8px 12px;border-radius:999px;outline:none;min-width:180px}
.search-results{position:absolute;top:100%;left:0;right:0;background:#ffffff;border:1px solid #e2e8f0;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.1);z-index:1000;display:none;max-height:300px;overflow-y:auto}
.search-result-item{padding:12px 16px;border-bottom:1px solid #f1f5f9;cursor:pointer;transition:background-color 0.2s}
.search-result-item:hover{background:#f8fafc}
.search-result-item:last-child{border-bottom:none}
.search-result-title{font-weight:600;color:#1e293b;margin-bottom:4px}
.search-result-description{font-size:14px;color:#64748b}
.hero{position:relative;display:flex;align-items:center;justify-content:center;min-height:400px;background:#ffffff}
.hero-inner{text-align:center;padding:48px 16px}
.title{font-size:56px;margin:0;line-height:1.1;color:#000000;font-family:'Georgia', 'Times New Roman', serif;font-weight:700;letter-spacing:2px}
.subtitle{color:#000000;margin-top:10px;font-size:18px}
.site-footer{border-top:1px solid #e2e8f0;background:#ffffff}
.footer-inner{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:16px;color:var(--muted)}
.website-credit{font-size:16px;color:#9ca3af;margin-top:4px}
@media (max-width: 800px){.nav-list{display:none}.nav-search input{min-width:120px}.title{font-size:36px}}

/* contact section styles */
.section{padding:48px 0;border-top:1px solid #e2e8f0;background:#ffffff}
.section-title{margin:0 0 12px 0;font-size:28px}
.contact-lines p{margin:6px 0}
.contact-lines a{color:#dc2626;text-decoration:none;font-weight:600}
.contact-lines a:hover{text-decoration:underline}
.contact-note{color:#9ca3af}
.about-image{margin:24px 0;text-align:center}
.campus-image{max-width:100%;height:auto;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.1)}
.tedx-logo-image{max-width:100%;height:auto;border-radius:8px;box-shadow:none;background:transparent;mix-blend-mode:multiply;opacity:0.8}

/* Team layout styles */
.founder-section {
    text-align: center;
    margin: 40px 0;
}

.founder-title {
    font-size: 24px;
    font-weight: bold;
    color: #1e293b;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.founder-card {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 24px;
    max-width: 400px;
    margin: 0 auto;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.organizers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.founder-name {
    font-size: 20px;
    font-weight: bold;
    color: #1e293b;
    margin-bottom: 8px;
}

.founder-title-text {
    font-size: 16px;
    color: #64748b;
    margin-bottom: 8px;
}

.founder-contact {
    font-size: 14px;
    color: #dc2626;
    font-weight: 600;
}

.team-section {
    margin-top: 60px;
}

.team-title {
    font-size: 24px;
    font-weight: bold;
    color: #1e293b;
    margin-bottom: 20px;
    text-align: center;
    letter-spacing: 2px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.team-card {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.team-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.team-role {
    font-size: 20px;
    font-weight: bold;
    color: #1e293b;
    margin-bottom: 16px;
    text-align: center;
    padding-bottom: 8px;
    border-bottom: 2px solid #e2e8f0;
}

.team-field {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding: 8px 12px;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.field-label {
    font-size: 16px;
    font-weight: 600;
    color: #64748b;
}

.field-value {
    font-size: 16px;
    color: #1e293b;
    font-weight: 500;
}

@media (max-width: 768px) {
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .founder-card {
        margin: 0 16px;
    }
}
.about-content p{margin:16px 0;line-height:1.6;font-size:16px}
.tedx-link{margin-top:32px;padding:16px;background:#f8fafc;border-radius:8px;border-left:4px solid #dc2626}
.tedx-link a{color:#dc2626;text-decoration:none;font-weight:600}
.tedx-link a:hover{text-decoration:underline}
.gallery-content p{margin:16px 0;line-height:1.6;font-size:16px}
.conference-content p{margin:16px 0;line-height:1.6;font-size:16px}

/* Chatbot Styles */
.chatbot-section {
  margin-top: 48px;
  padding: 0;
  border-top: 1px solid #e2e8f0;
  position: relative;
}

.chatbot-title {
  font-size: 24px;
  font-weight: 700;
  color: #1e293b;
  margin: 0 0 8px 0;
  text-align: center;
  padding: 32px 0 16px 0;
}

.chatbot-subtitle {
  font-size: 16px;
  color: #64748b;
  text-align: center;
  margin: 0 0 0 0;
  padding-bottom: 32px;
}

.chatbot-container {
  width: 100%;
  height: 70vh;
  margin: 0;
  background: #ffffff;
  border: none;
  border-radius: 0;
  box-shadow: none;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.chatbot-header {
  display: flex;
  align-items: center;
  padding: 20px;
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
}

.chatbot-avatar {
  width: 40px;
  height: 40px;
  background: #dc2626;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 12px;
  font-size: 20px;
}

.chatbot-info h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: #1e293b;
}

.status-indicator {
  font-size: 12px;
  color: #10b981;
  font-weight: 500;
}

.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  background: #ffffff;
  min-height: 0;
}

.message {
  margin-bottom: 16px;
  display: flex;
}

.bot-message {
  justify-content: flex-start;
}

.user-message {
  justify-content: flex-end;
}

.message-content {
  max-width: 70%;
  padding: 16px 20px;
  border-radius: 12px;
  font-size: 15px;
  line-height: 1.6;
}

.bot-message .message-content {
  background: #f1f5f9;
  color: #1e293b;
  border-bottom-left-radius: 4px;
}

.user-message .message-content {
  background: #dc2626;
  color: #ffffff;
  border-bottom-right-radius: 4px;
}

.message-content ul {
  margin: 8px 0;
  padding-left: 20px;
}

.message-content li {
  margin: 4px 0;
}

.message-content a {
  color: #dc2626;
  text-decoration: none;
  font-weight: 600;
}

.message-content a:hover {
  text-decoration: underline;
}

.chatbot-input-container {
  display: flex;
  padding: 24px;
  background: #f8fafc;
  border-top: 1px solid #e2e8f0;
  flex-shrink: 0;
}

#chatbotInput {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  background: #ffffff;
}

#chatbotInput:focus {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

#chatbotSendBtn {
  margin-left: 12px;
  padding: 12px 20px;
  background: #dc2626;
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background-color 0.2s;
}

#chatbotSendBtn:hover {
  background: #b91c1c;
}

#chatbotSendBtn:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}

.organizer-fallback {
  background: #fef3c7;
  border: 1px solid #f59e0b;
  border-radius: 8px;
  padding: 16px;
  margin-top: 12px;
}

.organizer-fallback h4 {
  margin: 0 0 8px 0;
  color: #92400e;
  font-size: 14px;
  font-weight: 600;
}

.organizer-fallback p {
  margin: 4px 0;
  font-size: 13px;
  color: #92400e;
}

.organizer-fallback a {
  color: #dc2626;
  text-decoration: none;
  font-weight: 600;
}

.organizer-fallback a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .chatbot-container {
    height: 60vh;
  }
  
  .chatbot-messages {
    padding: 16px;
  }
  
  .message-content {
    max-width: 85%;
    font-size: 14px;
  }
  
  .chatbot-input-container {
    padding: 16px;
  }
}