:root {
      /* New Color Palette */
      --bg-body: #0f0f1a;
      --bg-surface: #1a1a2e;
      --bg-card: #22223a;
      --bg-card-soft: #2a2a45;

      --primary: #00d4ff;
      --primary-soft: rgba(0, 212, 255, 0.1);
      --accent: #ff3b8d;
      --accent-soft: rgba(255, 59, 141, 0.1);
      --green: #00ff88;
      --green-soft: rgba(0, 255, 136, 0.1);
      --purple: #9d4edd;
      --purple-soft: rgba(157, 78, 221, 0.1);
      --yellow: #ffcc00;
      --yellow-soft: rgba(255, 204, 0, 0.1);

      --text-main: #ffffff;
      --text-soft: #a0a0c0;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-highlight: rgba(255, 255, 255, 0.15);

      --radius-xl: 24px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;

      --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.3);
      --shadow-hover: 0 20px 50px rgba(0, 0, 0, 0.5);
      --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.3);

      --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-bounce: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
      --transition-quick: all 0.3s ease;

      --font-main: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-main);
      min-height: 100vh;
      background:
        radial-gradient(circle at 0% 0%, rgba(0, 212, 255, 0.1) 0, transparent 50%),
        radial-gradient(circle at 100% 0%, rgba(255, 59, 141, 0.1) 0, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(157, 78, 221, 0.1) 0, transparent 50%),
        radial-gradient(circle at 0% 100%, rgba(0, 255, 136, 0.1) 0, transparent 50%),
        linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #0f0f1a 100%);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      position: relative;
    }

    /* Animated background elements */
    .bg-grid {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 40px 40px;
      z-index: 0;
      pointer-events: none;
      animation: gridMove 20s linear infinite;
    }

    @keyframes gridMove {
      0% { transform: translate(0, 0); }
      100% { transform: translate(40px, 40px); }
    }

    .floating-orb {
      position: fixed;
      border-radius: 50%;
      background: radial-gradient(circle at center, var(--primary), transparent 70%);
      filter: blur(40px);
      z-index: 0;
      pointer-events: none;
      opacity: 0.1;
    }

    .floating-orb-1 {
      width: 400px;
      height: 400px;
      top: -100px;
      right: -100px;
      animation: floatOrb 30s infinite ease-in-out;
    }

    .floating-orb-2 {
      width: 300px;
      height: 300px;
      bottom: -50px;
      left: -50px;
      background: radial-gradient(circle at center, var(--accent), transparent 70%);
      animation: floatOrb 40s infinite ease-in-out reverse;
    }

    @keyframes floatOrb {
      0%, 100% { transform: translate(0, 0) scale(1); }
      33% { transform: translate(50px, -50px) scale(1.1); }
      66% { transform: translate(-30px, 30px) scale(0.9); }
    }

    /* Glowing particles */
    .particle {
      position: fixed;
      width: 4px;
      height: 4px;
      background: var(--primary);
      border-radius: 50%;
      pointer-events: none;
      z-index: 0;
      box-shadow: 0 0 10px var(--primary);
      animation: particleFloat 15s infinite linear;
    }

    @keyframes particleFloat {
      0% { transform: translateY(100vh) translateX(0); opacity: 0; }
      10% { opacity: 1; }
      90% { opacity: 1; }
      100% { transform: translateY(-100px) translateX(100px); opacity: 0; }
    }

    /* Main Layout */
    .layout {
      max-width: 1680px;
      margin: 0 auto;
      padding: 1rem 1.5rem 2.5rem;
      position: relative;
      z-index: 1;
    }

    .page {
      max-width: 1380px;
      margin: 0 auto;
    }

    /* New Nav Design */
    .nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 1rem 1.5rem;
      border-radius: var(--radius-xl);
      background: rgba(34, 34, 58, 0.8);
      border: 1px solid var(--border-highlight);
      box-shadow: var(--shadow-card);
      position: sticky;
      top: 1rem;
      z-index: 30;
      backdrop-filter: blur(20px);
      margin-bottom: 3rem;
      animation: slideDown 0.8s ease-out;
    }

    @keyframes slideDown {
      from { transform: translateY(-100%); opacity: 0; }
      to { transform: translateY(0); opacity: 1; }
    }

    .nav-left {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 1.1rem;
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    .nav-logo-icon {
      width: 36px;
      height: 36px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--primary), var(--purple));
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: bold;
      box-shadow: var(--shadow-glow);
      animation: logoGlow 2s infinite alternate;
    }

    @keyframes logoGlow {
      0% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.5); }
      100% { box-shadow: 0 0 30px rgba(0, 212, 255, 0.8); }
    }

    .nav-links {
      flex: 1;
      display: flex;
      justify-content: center;
      gap: 2rem;
      font-size: 0.9rem;
      flex-wrap: nowrap;
    }

    .nav-links a {
      position: relative;
      padding: 0.5rem 0;
      color: var(--text-soft);
      transition: var(--transition-quick);
      text-decoration: none;
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      height: 2px;
      width: 0;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      border-radius: 2px;
      transition: width 0.3s ease;
    }

    .nav-links a:hover {
      color: var(--text-main);
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .btn-nav {
      border-radius: var(--radius-xl);
      padding: 0.6rem 1.5rem;
      border: none;
      cursor: pointer;
      font-size: 0.9rem;
      font-weight: 600;
      background: linear-gradient(135deg, var(--primary), var(--purple));
      color: white;
      box-shadow: var(--shadow-glow);
      transition: var(--transition-bounce);
      white-space: nowrap;
      position: relative;
      overflow: hidden;
    }

    .btn-nav:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 40px rgba(0, 212, 255, 0.4);
    }

    /* ===== NEW: Mobile nav toggle button ===== */
    .nav-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      background: var(--bg-card-soft);
      color: var(--text-main);
      cursor:pointer;
      align-items:center;
      justify-content:center;
      transition: var(--transition-quick);
    }
    .nav-toggle:hover{
      border-color: var(--primary);
      box-shadow: 0 0 0 3px var(--primary-soft);
    }

    /* New Hero Design */
    .hero {
      text-align: center;
      padding: 4rem 0 5rem;
      position: relative;
    }

    .hero-heading {
      font-size: clamp(3rem, 4vw + 1rem, 4.5rem);
      line-height: 1.1;
      font-weight: 800;
      letter-spacing: -0.03em;
      margin-bottom: 1.5rem;
      background: linear-gradient(135deg, var(--primary), var(--accent), var(--green));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      background-size: 200% auto;
      animation: gradientShift 3s ease infinite;
    }

    @keyframes gradientShift {
      0%, 100% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
    }

    .hero-sub {
      font-size: 1.1rem;
      color: var(--text-soft);
      max-width: 600px;
      margin: 0 auto 2.5rem;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 1rem;
      flex-wrap: wrap;
      margin-bottom: 3rem;
    }

    .btn-primary, .btn-secondary, .btn-submit, .program-btn {
      position: relative;
      overflow: hidden;
      transition: var(--transition-bounce);
      border: none;
      cursor: pointer;
      font-weight: 600;
    }

    .btn-primary {
      border-radius: var(--radius-xl);
      padding: 1rem 2.5rem;
      font-size: 1rem;
      background: linear-gradient(135deg, var(--primary), var(--purple));
      color: white;
      box-shadow: var(--shadow-glow);
    }

    .btn-primary:hover {
      transform: translateY(-3px) scale(1.05);
      box-shadow: 0 0 50px rgba(0, 212, 255, 0.5);
    }

    .btn-secondary {
      border-radius: var(--radius-xl);
      padding: 1rem 2rem;
      font-size: 1rem;
      background: transparent;
      color: var(--text-main);
      border: 2px solid var(--border-highlight);
    }

    .btn-secondary:hover {
      transform: translateY(-3px);
      border-color: var(--primary);
      box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
    }

    .hero-cards {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 1.5rem;
      margin-top: 3rem;
    }

    .hero-card {
      padding: 2rem;
      border-radius: var(--radius-xl);
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      transition: var(--transition-bounce);
      position: relative;
      overflow: hidden;
    }

    .hero-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .hero-card:hover {
      transform: translateY(-10px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .hero-card-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 0.8rem;
      color: var(--text-main);
    }

    .hero-card-text {
      font-size: 0.95rem;
      color: var(--text-soft);
      line-height: 1.6;
    }

    /* Section Styles */
    .section {
      margin-top: 5rem;
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .section.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .section-header {
      text-align: center;
      margin-bottom: 3rem;
    }

    .section-kicker {
      text-transform: uppercase;
      letter-spacing: 0.2em;
      font-size: 0.8rem;
      color: var(--primary);
      margin-bottom: 1rem;
      display: inline-block;
      background: var(--primary-soft);
      padding: 0.5rem 1rem;
      border-radius: var(--radius-xl);
    }

    .section-title {
      font-size: 2.5rem;
      font-weight: 700;
      margin-bottom: 1rem;
      background: linear-gradient(135deg, var(--text-main), var(--primary));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .section-sub {
      font-size: 1.1rem;
      color: var(--text-soft);
      max-width: 600px;
      margin: 0 auto;
      line-height: 1.7;
    }

    /* Program Cards */
    .program-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 2rem;
    }

    .program-card {
      padding: 2.5rem 2rem;
      border-radius: var(--radius-xl);
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      transition: var(--transition-bounce);
      position: relative;
      overflow: hidden;
    }

    .program-card::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, var(--primary-soft), transparent);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

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

    .program-card:hover {
      transform: translateY(-10px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .program-title {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
      color: var(--text-main);
    }

    .program-sub {
      font-size: 1rem;
      color: var(--text-soft);
      margin-bottom: 1.5rem;
      line-height: 1.6;
    }

    .program-list {
      list-style: none;
      margin-bottom: 2rem;
    }

    .program-list li {
      margin-bottom: 0.8rem;
      padding-left: 1.5rem;
      position: relative;
      color: var(--text-soft);
    }

    .program-list li::before {
      content: "→";
      position: absolute;
      left: 0;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

    .program-card:hover .program-list li::before {
      transform: translateX(5px);
    }

    .program-btn {
      padding: 0.8rem 1.5rem;
      border-radius: var(--radius-xl);
      font-size: 0.9rem;
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 600;
      border: 1px solid var(--primary);
      transition: var(--transition-quick);
    }

    .program-btn:hover {
      background: var(--primary);
      color: white;
      transform: translateY(-2px);
    }

    /* Schedule Section */
    .schedule-card {
      border-radius: var(--radius-xl);
      padding: 2.5rem;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      transition: var(--transition-smooth);
    }

    .schedule-card:hover {
      border-color: var(--primary);
    }

    .schedule-tabs {
      display: flex;
      gap: 0.5rem;
      margin-bottom: 2rem;
      flex-wrap: wrap;
    }

    .schedule-tab {
      border: none;
      background: var(--bg-card-soft);
      padding: 0.8rem 1.5rem;
      border-radius: var(--radius-xl);
      font-size: 0.9rem;
      cursor: pointer;
      color: var(--text-soft);
      transition: var(--transition-quick);
    }

    .schedule-tab:hover {
      background: var(--primary-soft);
      color: var(--primary);
    }

    .schedule-tab.active {
      background: linear-gradient(135deg, var(--primary), var(--purple));
      color: white;
      box-shadow: var(--shadow-glow);
    }

    .schedule-note {
      font-size: 0.9rem;
      color: var(--primary);
      margin-bottom: 2rem;
      padding: 1rem;
      background: var(--primary-soft);
      border-radius: var(--radius-lg);
      border-left: 4px solid var(--primary);
    }

    .schedule-program {
      display: none;
    }

    .schedule-program.active {
      display: block;
      animation: fadeIn 0.5s ease;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .schedule-program-title {
      font-size: 1.3rem;
      font-weight: 600;
      margin-bottom: 1.5rem;
      color: var(--text-main);
    }

    .schedule-day-tabs {
      display: flex;
      gap: 0.5rem;
      margin-bottom: 2rem;
      flex-wrap: wrap;
    }

    .schedule-day-tab {
      border: none;
      background: var(--bg-card-soft);
      padding: 0.6rem 1.2rem;
      border-radius: var(--radius-lg);
      font-size: 0.85rem;
      cursor: pointer;
      color: var(--text-soft);
      transition: var(--transition-quick);
    }

    .schedule-day-tab.active {
      background: var(--primary);
      color: white;
    }

    .schedule-day-block {
      display: none;
    }

    .schedule-day-block.active {
      display: block;
      animation: fadeIn 0.5s ease;
    }

    .schedule-day-title {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 1rem;
      color: var(--primary);
    }

    .agenda-head-row, .agenda-row {
      display: grid;
      grid-template-columns: 120px minmax(0, 1.4fr) minmax(0, 1.6fr);
      gap: 1.5rem;
      align-items: flex-start;
      padding: 1rem 0;
      border-bottom: 1px solid var(--border-subtle);
    }

    .agenda-head-row {
      font-size: 0.8rem;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--text-soft);
      border-bottom: 2px solid var(--border-highlight);
    }

    .agenda-row:hover {
      background: var(--primary-soft);
      border-radius: var(--radius-md);
    }

    .agenda-time {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
    }

    .agenda-session-title {
      font-weight: 600;
      font-size: 1rem;
      margin-bottom: 0.3rem;
      color: var(--text-main);
    }

    .agenda-session-tagline {
      font-size: 0.9rem;
      color: var(--text-soft);
    }

    .agenda-speaker {
      font-size: 0.9rem;
      color: var(--text-soft);
    }

    .agenda-pill {
      display: inline-block;
      border-radius: var(--radius-xl);
      padding: 0.3rem 0.8rem;
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: 0.5rem;
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 600;
    }

    /* Itinerary Cards */
    .itinerary-top {
      margin-top: 2rem;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 2rem;
    }

    .itinerary-card {
      border-radius: var(--radius-xl);
      padding: 2rem;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      transition: var(--transition-bounce);
    }

    .itinerary-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .itinerary-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 1rem;
      color: var(--text-main);
    }

    .itinerary-list {
      list-style: none;
    }

    .itinerary-list li {
      margin-bottom: 0.8rem;
      padding-left: 1.5rem;
      position: relative;
      color: var(--text-soft);
    }

    .itinerary-list li::before {
      content: "•";
      position: absolute;
      left: 0;
      color: var(--primary);
      font-size: 1.2rem;
    }

    /* Skills Section */
    .skills-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 1.5rem;
    }

    .skill-card {
      padding: 2rem;
      border-radius: var(--radius-xl);
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      transition: var(--transition-bounce);
    }

    .skill-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .skill-title {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 0.8rem;
      color: var(--text-main);
    }

    .skill-text {
      font-size: 0.95rem;
      color: var(--text-soft);
      line-height: 1.6;
    }

    /* Destination Card */
    .dest-card-wrapper {
      border-radius: var(--radius-xl);
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      padding: 2.5rem;
      transition: var(--transition-smooth);
    }

    .dest-card-wrapper:hover {
      border-color: var(--primary);
    }

    .dest-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 3rem;
    }

    .dest-col-title {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 1.5rem;
      color: var(--text-main);
    }

    .dest-country {
      margin-bottom: 1rem;
      padding: 1rem;
      border-radius: var(--radius-lg);
      background: var(--bg-card-soft);
      transition: var(--transition-quick);
      border: 1px solid var(--border-subtle);
    }

    .dest-country:hover {
      border-color: var(--primary);
      transform: translateX(5px);
    }

    .dest-country span.code {
      display: inline-block;
      width: 3rem;
      color: var(--primary);
      font-weight: 600;
    }

    .dest-country span.name {
      font-weight: 600;
      color: var(--text-main);
    }

    .dest-country span.desc {
      color: var(--text-soft);
      margin-left: 0.5rem;
    }

    .dest-features {
      margin-top: 1.5rem;
      padding-top: 1.5rem;
      border-top: 1px solid var(--border-subtle);
      color: var(--text-soft);
    }

    .dest-features div {
      margin-bottom: 0.5rem;
      padding-left: 1rem;
      position: relative;
    }

    .dest-features div::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--primary);
    }

    .speaker-block {
      margin-bottom: 1.5rem;
      padding: 1.5rem;
      border-radius: var(--radius-lg);
      background: var(--bg-card-soft);
      border: 1px solid var(--border-subtle);
      transition: var(--transition-quick);
    }

    .speaker-block:hover {
      border-color: var(--primary);
      transform: translateX(5px);
    }

    .speaker-name {
      font-weight: 600;
      margin-bottom: 0.5rem;
      color: var(--text-main);
    }

    .speaker-text {
      color: var(--text-soft);
      line-height: 1.6;
    }

    .prep-strip {
      margin-top: 1.5rem;
      border-radius: var(--radius-lg);
      padding: 1rem 1.5rem;
      background: var(--green-soft);
      border: 1px solid var(--green);
      font-size: 0.9rem;
      color: var(--green);
      animation: pulseLight 2s infinite;
    }

    @keyframes pulseLight {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.7; }
    }

    /* Speakers Grid */
    .speakers-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 1.5rem;
    }

    .speaker-card {
      border-radius: var(--radius-xl);
      padding: 1.5rem;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      transition: var(--transition-bounce);
      cursor: pointer;
      text-align: center;
    }

    .speaker-card:hover {
      transform: translateY(-10px) scale(1.02);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .speaker-photo {
      width: 120px;
      height: 120px;
      border-radius: 50%;
      margin: 0 auto 1rem;
      background-size: cover;
      background-position: center;
      border: 3px solid var(--primary);
      box-shadow: var(--shadow-glow);
      transition: var(--transition-smooth);
    }

    .speaker-card:hover .speaker-photo {
      transform: scale(1.1);
    }

    .speaker-name-main {
      font-weight: 600;
      font-size: 1.1rem;
      margin-bottom: 0.3rem;
      color: var(--text-main);
    }

    .speaker-title-main {
      font-size: 0.9rem;
      color: var(--text-soft);
      margin-bottom: 0.8rem;
    }

    .speaker-tag {
      display: inline-block;
      border-radius: var(--radius-xl);
      padding: 0.3rem 0.8rem;
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 600;
    }

    /* Speaker Modal */
    .speaker-modal {
      position: fixed;
      inset: 0;
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 100;
      padding: 1rem;
    }

    .speaker-modal.open {
      display: flex;
    }

    .speaker-modal-overlay {
      position: absolute;
      inset: 0;
      background: rgba(15, 15, 26, 0.9);
      backdrop-filter: blur(10px);
    }

    .speaker-modal-content {
      position: relative;
      z-index: 1;
      width: min(800px, 95vw);
      max-height: 90vh;
      border-radius: var(--radius-xl);
      background: var(--bg-card);
      border: 1px solid var(--border-highlight);
      box-shadow: var(--shadow-hover);
      padding: 2.5rem;
      display: grid;
      grid-template-columns: 200px 1fr;
      gap: 2rem;
      animation: modalSlideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    }

    @keyframes modalSlideUp {
      from { transform: translateY(50px); opacity: 0; }
      to { transform: translateY(0); opacity: 1; }
    }

    .speaker-modal-photo {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-radius: var(--radius-lg);
      border: 3px solid var(--primary);
    }

    .speaker-modal-name {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
      color: var(--text-main);
    }

    .speaker-modal-title {
      font-size: 1rem;
      color: var(--primary);
      margin-bottom: 1.5rem;
    }

    .speaker-modal-bio {
      font-size: 0.95rem;
      color: var(--text-soft);
      line-height: 1.7;
    }

    .speaker-modal-link {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      margin-top: 1.5rem;
      color: var(--primary);
      text-decoration: none;
      font-weight: 600;
    }

    .speaker-modal-link:hover {
      gap: 0.8rem;
    }

    .speaker-modal-close {
      position: absolute;
      top: 1rem;
      right: 1rem;
      border-radius: 50%;
      border: none;
      width: 40px;
      height: 40px;
      cursor: pointer;
      background: var(--bg-card-soft);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: var(--text-soft);
      transition: var(--transition-quick);
    }

    .speaker-modal-close:hover {
      background: var(--primary);
      color: white;
      transform: rotate(90deg);
    }

    /* Map Card */
    .map-card {
      border-radius: var(--radius-xl);
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      padding: 2.5rem;
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 3rem;
      transition: var(--transition-smooth);
    }

    .map-card:hover {
      border-color: var(--primary);
    }

    .map-multi-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 2rem;
    }

    .map-block {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .map-embed {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-highlight);
      background: var(--bg-card-soft);
      transition: var(--transition-smooth);
    }

    .map-embed:hover {
      border-color: var(--primary);
    }

    .map-embed iframe {
      width: 100%;
      height: 250px;
      border: 0;
      display: block;
    }

    .map-address {
      color: var(--text-soft);
      font-size: 0.9rem;
      line-height: 1.6;
    }

    .map-details-title {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 1rem;
      color: var(--text-main);
    }

    .map-details p {
      color: var(--text-soft);
      margin-bottom: 1rem;
      line-height: 1.6;
    }

    .map-list {
      list-style: none;
      margin-top: 1rem;
    }

    .map-list li {
      margin-bottom: 0.8rem;
      padding-left: 1.5rem;
      position: relative;
      color: var(--text-soft);
    }

    .map-list li::before {
      content: "→";
      position: absolute;
      left: 0;
      color: var(--primary);
    }

    /* Photo Grid */
    .photo-grid {
      display: grid;
      gap: 1.5rem;
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .photo-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 0.8rem;
      box-shadow: var(--shadow-card);
      transition: var(--transition-bounce);
    }

    .photo-card:hover {
      transform: translateY(-10px) scale(1.02);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .photo-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-radius: var(--radius-md);
      cursor: zoom-in;
      transition: var(--transition-smooth);
    }

    .photo-card img:hover {
      transform: scale(1.05);
    }

    /* Image Zoom Modal */
    .img-zoom-modal {
      position: fixed;
      inset: 0;
      z-index: 100;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 1rem;
    }

    .img-zoom-modal.open {
      display: flex;
    }

    .img-zoom-overlay {
      position: absolute;
      inset: 0;
      background: rgba(15, 15, 26, 0.95);
      backdrop-filter: blur(10px);
    }

    .img-zoom-content {
      position: relative;
      z-index: 1;
      width: min(1200px, 95vw);
      max-height: 90vh;
      border-radius: var(--radius-xl);
      background: var(--bg-card);
      border: 1px solid var(--border-highlight);
      box-shadow: var(--shadow-hover);
      overflow: hidden;
      display: grid;
      grid-template-rows: auto 1fr;
      animation: zoomIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    @keyframes zoomIn {
      from { transform: scale(0.9); opacity: 0; }
      to { transform: scale(1); opacity: 1; }
    }

    .img-zoom-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1rem 1.5rem;
      border-bottom: 1px solid var(--border-subtle);
    }

    .img-zoom-title {
      font-size: 0.9rem;
      color: var(--text-soft);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .img-zoom-close {
      border-radius: 50%;
      border: 1px solid var(--border-subtle);
      background: var(--bg-card-soft);
      width: 36px;
      height: 36px;
      cursor: pointer;
      font-size: 1.2rem;
      color: var(--text-soft);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition-quick);
    }

    .img-zoom-close:hover {
      background: var(--primary);
      color: white;
      transform: rotate(90deg);
    }

    .img-zoom-body {
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 2rem;
      background: var(--bg-surface);
    }

    .img-zoom-body img {
      max-width: 100%;
      max-height: 80vh;
      width: auto;
      height: auto;
      object-fit: contain;
      border-radius: var(--radius-md);
    }

    /* CTA Section */
    .cta {
      margin-top: 5rem;
    }

    .cta h2 {
      text-align: center;
      font-size: 2.5rem;
      font-weight: 700;
      margin-bottom: 1rem;
      background: linear-gradient(135deg, var(--text-main), var(--primary));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .cta p {
      text-align: center;
      font-size: 1.1rem;
      color: var(--text-soft);
      max-width: 600px;
      margin: 0 auto 3rem;
      line-height: 1.7;
    }

    /* Form Card */
    .form-card {
      border-radius: var(--radius-xl);
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      padding: 2.5rem;
      transition: var(--transition-smooth);
    }

    .form-card:hover {
      border-color: var(--primary);
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 1.5rem;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    label {
      font-size: 0.9rem;
      color: var(--text-soft);
      font-weight: 500;
    }

    input, select, textarea {
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      background: var(--bg-card-soft);
      color: var(--text-main);
      padding: 0.8rem 1rem;
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition-smooth);
    }

    input::placeholder, textarea::placeholder {
      color: var(--text-soft);
    }

    input:focus, select:focus, textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px var(--primary-soft);
      background: var(--bg-card);
    }

    textarea {
      min-height: 120px;
      resize: vertical;
      grid-column: 1 / -1;
    }

    .form-footer {
      margin-top: 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 2rem;
      flex-wrap: wrap;
    }

    .btn-submit {
      border-radius: var(--radius-xl);
      padding: 1rem 2.5rem;
      border: none;
      background: linear-gradient(135deg, var(--primary), var(--purple));
      color: white;
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      box-shadow: var(--shadow-glow);
      transition: var(--transition-bounce);
    }

    .btn-submit:hover {
      transform: translateY(-3px) scale(1.05);
      box-shadow: 0 0 50px rgba(0, 212, 255, 0.4);
    }

    .btn-submit[disabled] {
      opacity: 0.5;
      cursor: not-allowed;
      transform: none;
    }

    .form-status {
      margin-top: 1.5rem;
      border-radius: var(--radius-lg);
      padding: 1rem 1.5rem;
      border: 1px solid var(--border-subtle);
      background: var(--bg-card);
      font-size: 0.9rem;
      display: none;
      animation: slideIn 0.5s ease;
    }

    @keyframes slideIn {
      from { transform: translateY(-10px); opacity: 0; }
      to { transform: translateY(0); opacity: 1; }
    }

    .form-status.show {
      display: block;
    }

    .form-status.success {
      border-color: var(--green);
      background: var(--green-soft);
      color: var(--green);
    }

    .form-status.error {
      border-color: var(--accent);
      background: var(--accent-soft);
      color: var(--accent);
    }

    .form-status.info {
      border-color: var(--primary);
      background: var(--primary-soft);
      color: var(--primary);
    }

    .privacy-note {
      margin-top: 1.5rem;
      font-size: 0.85rem;
      color: var(--text-soft);
      text-align: center;
    }

    /* FAQ Section */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      background: var(--bg-card);
      padding: 1.5rem;
      margin-bottom: 1rem;
      box-shadow: var(--shadow-card);
      transition: var(--transition-smooth);
    }

    .faq-item:hover {
      border-color: var(--primary);
    }

    .faq-item[open] {
      background: var(--bg-card-soft);
    }

    .faq-item summary {
      cursor: pointer;
      list-style: none;
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "+";
      font-weight: 600;
      color: var(--primary);
      font-size: 1.5rem;
      transition: var(--transition-smooth);
    }

    .faq-item[open] summary::after {
      content: "−";
      transform: rotate(180deg);
    }

    .faq-item p {
      margin-top: 1rem;
      font-size: 0.95rem;
      color: var(--text-soft);
      line-height: 1.7;
      animation: fadeIn 0.5s ease;
    }

    /* Footer */
    footer {
      margin-top: 5rem;
      padding: 3rem;
      border-radius: var(--radius-xl);
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-card);
      position: relative;
      overflow: hidden;
    }

    footer::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      height: 4px;
      width: 100%;
      background: linear-gradient(90deg, var(--primary), var(--accent), var(--green));
    }

    .footer-inner {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 3rem;
      align-items: start;
    }

    .footer-left strong {
      font-size: 1.5rem;
      font-weight: 700;
      display: block;
      margin-bottom: 0.5rem;
      background: linear-gradient(135deg, var(--text-main), var(--primary));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    #footer-tagline {
      display: block;
      margin-top: 0.5rem;
      color: var(--text-soft);
      font-size: 1rem;
      line-height: 1.6;
    }

    #footer-copyright {
      display: block;
      margin-top: 1.5rem;
      color: var(--text-soft);
      font-size: 0.9rem;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-bottom: 1.5rem;
    }

    .footer-links a {
      padding: 0.5rem 1rem;
      border-radius: var(--radius-xl);
      background: var(--bg-card-soft);
      border: 1px solid var(--border-subtle);
      color: var(--text-soft);
      font-size: 0.9rem;
      transition: var(--transition-quick);
      text-decoration: none;
    }

    .footer-links a:hover {
      background: var(--primary);
      color: white;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .footer-contact {
      font-size: 0.95rem;
      color: var(--text-soft);
    }

    .footer-contact a {
      color: var(--primary);
      font-weight: 600;
      text-decoration: none;
    }

    .footer-contact a:hover {
      text-decoration: underline;
    }

    #footer-location {
      margin-top: 0.5rem;
      color: var(--text-soft);
    }

    /* Scroll to top button */
    .scroll-top {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--purple));
      color: white;
      border: none;
      cursor: pointer;
      z-index: 100;
      display: none;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-glow);
      transition: var(--transition-bounce);
      opacity: 0;
      transform: translateY(20px);
    }

    .scroll-top.visible {
      display: flex;
      opacity: 1;
      transform: translateY(0);
    }

    .scroll-top:hover {
      transform: translateY(-5px) scale(1.1);
      box-shadow: 0 0 40px rgba(0, 212, 255, 0.6);
    }

    /* Progress bar */
    .progress-bar {
      position: fixed;
      top: 0;
      left: 0;
      width: 0%;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--accent), var(--green));
      z-index: 100;
      transition: width 0.3s ease;
    }

    /* Responsive Design */
    @media (max-width: 1200px) {
      .program-grid, .speakers-grid, .itinerary-top, .skills-grid, .photo-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .hero-heading {
        font-size: clamp(2.5rem, 3vw + 1rem, 3.5rem);
      }

      .section-title {
        font-size: 2rem;
      }
    }

    /* ===== UPDATED: Real responsive navbar (hamburger) ===== */
    @media (max-width: 900px){
      .nav{
        display:grid;
        grid-template-columns: 1fr auto auto;
        grid-template-areas:
          "brand cta toggle"
          "links links links";
        gap: 0.75rem;
        align-items:center;
        padding: 1rem;
      }

      #nav-brand{ grid-area: brand; }
      #nav-cta{ grid-area: cta; }
      #nav-toggle{ grid-area: toggle; display:flex; }

      .nav-links{
        grid-area: links;
        justify-content:flex-start;
        gap: 0.75rem;
        width:100%;

        /* collapsed by default */
        display:none;
        flex-direction:column;

        padding: 0.75rem;
        border-radius: var(--radius-xl);
        background: rgba(34, 34, 58, 0.9);
        border: 1px solid var(--border-highlight);
        backdrop-filter: blur(20px);
      }

      .nav.nav-open .nav-links{
        display:flex;
        animation: fadeIn 0.25s ease;
      }

      .nav-links a{
        padding: 0.75rem 0.75rem;
        border-radius: var(--radius-lg);
      }

      .nav-links a:hover::after{
        width:0;
      }
    }

    @media (max-width: 768px) {
      .layout {
        padding: 1rem;
      }

      /* NOTE: Removed old flex-column navbar rules to avoid conflict with hamburger menu */

      .hero-cards, .program-grid, .speakers-grid, .itinerary-top, .skills-grid, .photo-grid,
      .dest-grid, .form-grid, .map-card, .map-multi-grid {
        grid-template-columns: 1fr;
      }

      .hero {
        padding: 2rem 0 3rem;
      }

      .hero-heading {
        font-size: 2.5rem;
      }

      .section {
        margin-top: 3rem;
      }

      .section-title {
        font-size: 1.8rem;
      }

      .schedule-card, .dest-card-wrapper, .form-card, .map-card {
        padding: 1.5rem;
      }

      .speaker-modal-content {
        grid-template-columns: 1fr;
        padding: 1.5rem;
      }

      .agenda-head-row, .agenda-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
      }

      .agenda-speaker {
        margin-top: 0.5rem;
      }

      .footer-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .floating-orb {
        display: none;
      }
    }

    @media (max-width: 480px) {
      .hero-heading {
        font-size: 2rem;
      }

      .section-title {
        font-size: 1.5rem;
      }

      .hero-actions {
        flex-direction: column;
        align-items: center;
      }

      .btn-primary, .btn-secondary {
        width: 100%;
        max-width: 300px;
      }

      .form-footer {
        flex-direction: column;
        text-align: center;
      }

      .scroll-top {
        bottom: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
      }

      /* optional: stack CTA + toggle nicely */
      #nav-cta{ width:100%; }
      .nav{
        grid-template-columns: 1fr auto;
        grid-template-areas:
          "brand toggle"
          "cta cta"
          "links links";
      }
    }