:root {
  --primary-color: #2c3e50;
  --secondary-color: #34495e;
  --accent-color: #3498db;
  --text-color: #2c3e50;
  --text-muted: #7f8c8d;
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --border-color: #dee2e6;
  --shadow-light: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-medium: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-heavy: 0 8px 32px rgba(0,0,0,0.16);
  --border-radius: 0.5rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  font-size: 16px;
  overflow-x: hidden;
}

.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  transition: var(--transition);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.brand-text {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--text-color);
  padding: 0.5rem 1rem;
  margin: 0 0.25rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
}

.navbar-nav .nav-link:hover {
  color: var(--accent-color);
  background: rgba(52, 152, 219, 0.1);
}

.custom-toggler {
  border: none;
  padding: 0.375rem;
  border-radius: var(--border-radius);
  background: var(--bg-light);
  transition: var(--transition);
}

.custom-toggler:hover {
  background: var(--accent-color);
}

.custom-toggler:hover .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='m4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.hero-section {
  background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 100%);
  padding: 120px 0 80px;
  position: relative;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23f8f9fa' fill-opacity='0.4'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.6;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

.accent-text {
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-weight: 400;
}

.hero-date {
  background: var(--bg-light);
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius);
  border-left: 4px solid var(--accent-color);
  font-weight: 600;
  color: var(--text-color);
  display: inline-flex;
  align-items: center;
  margin-bottom: 2rem;
  display: flex;

}

.hero-image img {
  transform: perspective(1000px) rotateY(-5deg);
  transition: var(--transition);
}

.hero-image:hover img {
  transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 3rem;
}

.feature-card {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-radius: var(--border-radius);
  background: var(--bg-white);
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  height: 100%;
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-medium);
  border-color: var(--accent-color);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: white;
}

.feature-card h4 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

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

.benefit-item {
  display: flex;
  align-items: flex-start;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 1.1rem;
  transition: var(--transition);
}

.benefit-item:last-child {
  border-bottom: none;
}

.benefit-item:hover {
  background: var(--bg-light);
  margin: 0 -1rem;
  padding: 1rem;
  border-radius: var(--border-radius);
}

.benefits-image img {
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
}

.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-color) 0%, var(--secondary-color) 100%);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  background: var(--bg-white);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  transition: var(--transition);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2.5rem;
  top: 2.5rem;
  width: 12px;
  height: 12px;
  background: var(--accent-color);
  border-radius: 50%;
  border: 3px solid var(--bg-white);
  box-shadow: 0 0 0 3px var(--accent-color);
}

.timeline-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-medium);
}

.timeline-time {
  font-weight: 600;
  color: var(--accent-color);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.timeline-content h5 {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.timeline-content p {
  color: var(--text-muted);
  margin: 0;
}

.speaker-image img {
  box-shadow: var(--shadow-medium);
  transition: var(--transition);
  width: 128px;
  height: auto;
}

.speaker-image:hover img {
  transform: scale(1.05);
  box-shadow: var(--shadow-heavy);
}

.speaker-name {
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

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

.speaker-bio {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.speaker-credentials .badge {
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  font-weight: 500;
}

.registration-card {
  background: var(--bg-white);
  padding: 3rem 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--border-color);
}

.form-label {
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.form-control {
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: var(--transition);
  background: var(--bg-white);
}

.form-control:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
  background: var(--bg-white);
}

.form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.125rem;
}

.form-check-input:checked {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
}

.btn {
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  border: 2px solid transparent;
  text-transform: none;
  letter-spacing: 0.025em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
  border-color: var(--accent-color);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
  border-color: var(--secondary-color);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

.map-container {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--border-color);
}

.map-container iframe {
  border-radius: var(--border-radius);
}

.contact-info .contact-item {
  display: flex;
  align-items: flex-start;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.contact-info .contact-item:last-child {
  border-bottom: none;
}

.contact-info i {
  font-size: 1.25rem;
  margin-top: 0.25rem;
}

.contact-info a {
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
}

.contact-info a:hover {
  color: var(--accent-color);
}

.footer-section {
  background: var(--primary-color);
  color: white;
  padding: 0;
  margin-top: 5rem;
  position: relative;
  overflow: hidden;
}

.footer-waves {
  height: 120px;
  overflow: hidden;
  color: var(--primary-color);
  margin-bottom: -1px;
}

.footer-section .container {
  padding: 4rem 15px 2rem;
  position: relative;
  z-index: 2;
}

.footer-brand h5 {
  color: white;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.8) !important;
  line-height: 1.6;
}

.footer-heading {
  color: white;
  font-weight: 600;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--accent-color);
  padding-left: 0.5rem;
}

.footer-contact {
  list-style: none;
  padding: 0;
}

.footer-contact li {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

.footer-contact i {
  color: var(--accent-color);
  margin-right: 0.75rem;
  width: 20px;
  text-align: center;
}

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

.stat-item {
  text-align: center;
}

.stat-item strong {
  display: block;
  font-size: 1.5rem;
  color: var(--accent-color);
  font-weight: 700;
}

.stat-item small {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer-divider {
  border-color: rgba(255, 255, 255, 0.2);
  margin: 2rem 0;
}

.copyright {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--primary-color);
  color: white;
  padding: 1.5rem 0;
  box-shadow: var(--shadow-heavy);
  z-index: 9999;
  transform: translateY(100%);
  transition: var(--transition);
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-link {
  color: var(--accent-color);
  text-decoration: underline;
}

.cookie-link:hover {
  color: white;
}

.smooth-scroll {
  scroll-behavior: smooth;
}

.privacy-page {
  padding: 120px 0 80px;
  background: var(--bg-light);
}

.privacy-header {
  margin-bottom: 4rem;
}

.privacy-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.privacy-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.privacy-content {
  background: var(--bg-white);
  padding: 3rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  border: 1px solid var(--border-color);
}

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

.privacy-section:last-child {
  margin-bottom: 0;
}

.privacy-section h2 {
  color: var(--primary-color);
  font-weight: 600;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.privacy-section h5 {
  color: var(--secondary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

.privacy-list {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

.privacy-list li {
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.info-box {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  border-left: 4px solid var(--accent-color);
  margin: 1.5rem 0;
}

.table {
  margin-bottom: 2rem;
}

.table th {
  background: var(--bg-light);
  color: var(--primary-color);
  font-weight: 600;
  border-bottom: 2px solid var(--border-color);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bg-light);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.contact-method i {
  font-size: 1.5rem;
  margin-top: 0.25rem;
}

.contact-method strong {
  display: block;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.contact-method p {
  margin: 0;
  color: var(--text-muted);
}

.contact-method a {
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
}

.contact-method a:hover {
  color: var(--accent-color);
}

.back-to-home {
  margin-top: 3rem;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.125rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .privacy-title {
    font-size: 2.25rem;
  }
  
  .privacy-content {
    padding: 2rem 1.5rem;
  }
  
  .registration-card {
    padding: 2rem 1.5rem;
  }
  
  .timeline {
    padding-left: 1rem;
  }
  
  .timeline-item {
    padding: 1.5rem;
  }
  
  .timeline-item::before {
    left: -1.5rem;
  }
  
  .hero-section {
    padding: 100px 0 60px;
  }
  
  .footer-stats {
    justify-content: center;
    gap: 1rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .privacy-title {
    font-size: 2rem;
  }
  
  .feature-card {
    padding: 2rem 1rem;
  }
  
  .timeline-item:hover {
    transform: none;
  }
  
  .cookie-banner .btn {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    margin-top: 0.5rem;
  }
}

.offcanvas {
  border: none;
  height: 100vh;
}

.offcanvas-header {
  border-bottom: 1px solid var(--border-color);
}

.offcanvas-title {
  color: var(--primary-color);
  font-weight: 600;
}

html {
  scroll-behavior: smooth;
}

body.modal-open {
  overflow: hidden;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}