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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Playfair Display", Georgia, serif;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.5em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  margin-bottom: 1em;
  font-size: 1.1rem;
  line-height: 1.7;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  z-index: 1000;
  padding: 1rem 0;
  transition: all 0.3s ease;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.nav-logo h2 {
  font-size: 1.5rem;
  color: #2563eb;
  margin: 0;
  font-weight: 700;
}

.nav-year {
  font-size: 0.9rem;
  color: #64748b;
  font-weight: 500;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: #374151;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #2563eb;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #2563eb;
  transition: width 0.3s ease;
}

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

.nav-cta {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: white !important;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #374151;
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 20% 50%,
      rgba(37, 99, 235, 0.3) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(168, 85, 247, 0.3) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 40% 80%,
      rgba(59, 130, 246, 0.2) 0%,
      transparent 50%
    );
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  max-width: 800px;
  padding: 0 24px;
}

.hero-date {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  margin-bottom: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: fadeInUp 1s ease 0.5s both;
}

.hero-title {
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease 0.7s both;
}

.title-line {
  display: block;
  opacity: 0;
  animation: fadeInUp 1s ease both;
}

.title-line:first-child {
  animation-delay: 0.8s;
}

.title-line.highlight {
  background: linear-gradient(135deg, #60a5fa, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation-delay: 1s;
}

.hero-description {
  font-size: 1.25rem;
  margin-bottom: 3rem;
  opacity: 0.9;
  line-height: 1.8;
  animation: fadeInUp 1s ease 1.2s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease 1.4s both;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #60a5fa, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-cta {
  animation: fadeInUp 1s ease 1.6s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: white;
  padding: 1rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
  border: 2px solid transparent;
  margin-bottom: 1rem;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(37, 99, 235, 0.4);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-large {
  padding: 1.25rem 3rem;
  font-size: 1.2rem;
}

.btn-arrow {
  transition: transform 0.3s ease;
}

.btn-primary:hover .btn-arrow {
  transform: translateX(5px);
}

.early-bird {
  display: block;
  font-size: 0.9rem;
  color: #fbbf24;
  margin-top: 1rem;
  font-weight: 500;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  animation: fadeInUp 1s ease 2s both;
}

.scroll-indicator span {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.scroll-arrow {
  width: 2px;
  height: 30px;
  background: rgba(255, 255, 255, 0.5);
  margin: 0 auto;
  position: relative;
  animation: bounce 2s infinite;
}

.scroll-arrow::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  border-right: 2px solid rgba(255, 255, 255, 0.5);
  border-bottom: 2px solid rgba(255, 255, 255, 0.5);
  transform: translateX(-50%) rotate(45deg);
}

/* Sections */
section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-subtitle {
  display: inline-block;
  background: linear-gradient(135deg, #2563eb, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 1.5rem;
  color: #1a1a1a;
}

.section-description {
  max-width: 600px;
  margin: 0 auto;
  color: #64748b;
  font-size: 1.2rem;
}

/* About Section */
.about {
  background: #f8fafc;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.about-card {
  background: white;
  padding: 2.5rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.about-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  filter: grayscale(0.3);
}

.about-card h3 {
  margin-bottom: 1rem;
  color: #1a1a1a;
}

.about-card p {
  color: #64748b;
  line-height: 1.7;
}

/* Speakers Section */
.speakers {
  background: white;
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.speaker-card {
  background: #f8fafc;
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.speaker-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.speaker-image {
  width: 120px;
  height: 120px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
}

.speaker-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #2563eb, #a855f7);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
}

.speaker-info h3 {
  margin-bottom: 0.5rem;
  color: #1a1a1a;
}

.speaker-title {
  color: #2563eb;
  font-weight: 600;
  margin-bottom: 1rem !important;
}

.speaker-bio {
  color: #64748b;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Gallery Section */
.gallery {
  background: white;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  border-radius: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  cursor: pointer;
}

.gallery-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.gallery-placeholder {
  width: 100%;
  height: 250px;
  background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px dashed #0ea5e9;
  transition: all 0.3s ease;
}

.gallery-item:hover .gallery-placeholder {
  background: linear-gradient(135deg, #e0f2fe, #cffafe);
  border-color: #0284c7;
}

.gallery-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.8;
}

.gallery-placeholder p {
  color: #0ea5e9;
  font-weight: 600;
  margin: 0;
  font-size: 1rem;
  text-align: center;
}

/* Schedule Section */
.schedule {
  background: #f8fafc;
}

.schedule-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.schedule-day {
  background: white;
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.schedule-day:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.day-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.day-number {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, #2563eb, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.day-info h3 {
  margin: 0;
  color: #1a1a1a;
}

.day-info p {
  margin: 0;
  color: #64748b;
  font-size: 0.9rem;
}

.day-content h4 {
  color: #1a1a1a;
  margin-bottom: 1rem;
}

.day-content p {
  color: #64748b;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.day-highlights {
  list-style: none;
}

.day-highlights li {
  padding: 0.5rem 0;
  color: #374151;
  position: relative;
  padding-left: 1.5rem;
}

.day-highlights li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: #2563eb;
  font-weight: bold;
}

/* Venue Section */
.venue {
  background: white;
}

.venue-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.venue-info .section-subtitle {
  text-align: left;
}

.venue-info .section-title {
  text-align: left;
  margin-bottom: 1.5rem;
}

.venue-description {
  color: #64748b;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.venue-features {
  margin-bottom: 2rem;
}

.venue-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.feature-icon {
  font-size: 1.5rem;
  margin-top: 0.25rem;
}

.venue-feature h4 {
  margin: 0 0 0.5rem 0;
  color: #1a1a1a;
  font-size: 1.1rem;
}

.venue-feature p {
  margin: 0;
  color: #64748b;
  font-size: 0.95rem;
}

.venue-address {
  background: #f8fafc;
  padding: 1.5rem;
  border-radius: 15px;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.venue-address h4 {
  margin-bottom: 0.5rem;
  color: #1a1a1a;
}

.venue-address p {
  margin: 0;
  color: #64748b;
}

.venue-image {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 400px;
}

.venue-placeholder {
  background: linear-gradient(135deg, #f8fafc, #e2e8f0);
  width: 100%;
  height: 100%;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px dashed #cbd5e1;
}

.venue-placeholder span {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.7;
}

.venue-placeholder p {
  color: #64748b;
  font-weight: 600;
  margin: 0;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 30% 20%,
      rgba(37, 99, 235, 0.3) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 70% 80%,
      rgba(168, 85, 247, 0.3) 0%,
      transparent 50%
    );
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.cta-content h2 {
  margin-bottom: 1.5rem;
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.cta-content > p {
  font-size: 1.3rem;
  margin-bottom: 3rem;
  opacity: 0.9;
  line-height: 1.7;
}

.cta-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-bottom: 3rem;
}

.benefit {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: center;
}

.benefit-icon {
  color: #10b981;
  font-weight: bold;
  font-size: 1.2rem;
}

.benefit span:last-child {
  font-weight: 500;
}

.cta-pricing {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  margin-bottom: 3rem;
}

.price-option {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.price-label {
  font-size: 0.9rem;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.price {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #60a5fa, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.price-note {
  font-size: 0.85rem;
  opacity: 0.7;
}

.price-divider {
  font-size: 2rem;
  opacity: 0.3;
}

.cta-guarantee {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-top: 2rem;
  margin-bottom: 0;
}

/* Footer */
.footer {
  background: #0f172a;
  color: white;
  padding: 4rem 0 2rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  color: #2563eb;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

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

.link-group h4 {
  margin-bottom: 1rem;
  color: white;
}

.link-group a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

.link-group a:hover {
  color: #60a5fa;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.footer-legal {
  display: flex;
  gap: 2rem;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-legal a:hover {
  color: #60a5fa;
}

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

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .venue-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .venue-image {
    order: -1;
    height: 250px;
  }

  .cta-benefits {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .cta-pricing {
    flex-direction: column;
    gap: 1rem;
  }

  .price-divider {
    display: none;
  }

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

  .footer-links {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .footer-legal {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  section {
    padding: 4rem 0;
  }

  .about-grid,
  .speakers-grid,
  .gallery-grid,
  .schedule-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: row;
    gap: 1rem;
  }

  .stat-number {
    font-size: 2rem;
  }

  .stat-label {
    font-size: 0.8rem;
  }

  .btn-primary {
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }

  .btn-large {
    padding: 1.25rem 2rem;
    font-size: 1.1rem;
  }
}

/* Enhanced hover effects and micro-interactions */
.about-card,
.speaker-card,
.schedule-day {
  position: relative;
  overflow: hidden;
}

.about-card::before,
.speaker-card::before,
.schedule-day::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(37, 99, 235, 0.1),
    transparent
  );
  transition: left 0.5s ease;
}

.about-card:hover::before,
.speaker-card:hover::before,
.schedule-day:hover::before {
  left: 100%;
}

/* Scroll-based animations */
@media (prefers-reduced-motion: no-preference) {
  .about-card,
  .speaker-card,
  .schedule-day {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
  }

  .about-card:nth-child(1) {
    animation-delay: 0.1s;
  }
  .about-card:nth-child(2) {
    animation-delay: 0.2s;
  }
  .about-card:nth-child(3) {
    animation-delay: 0.3s;
  }
  .about-card:nth-child(4) {
    animation-delay: 0.4s;
  }

  .speaker-card:nth-child(1) {
    animation-delay: 0.1s;
  }
  .speaker-card:nth-child(2) {
    animation-delay: 0.2s;
  }
  .speaker-card:nth-child(3) {
    animation-delay: 0.3s;
  }
  .speaker-card:nth-child(4) {
    animation-delay: 0.4s;
  }

  .schedule-day:nth-child(1) {
    animation-delay: 0.1s;
  }
  .schedule-day:nth-child(2) {
    animation-delay: 0.2s;
  }
  .schedule-day:nth-child(3) {
    animation-delay: 0.3s;
  }

  a {
    text-decoration: none;
    color: #0284c7;
  }
}