/* Modern Theme for Konferenza Services */

:root {
  --primary-color: #2563eb;
  --secondary-color: #1e40af;
  --accent-color: #f59e0b;
  --success-color: #10b981;
  --danger-color: #ef4444;
  --dark-color: #1f2937;
  --light-color: #f8fafc;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --border-radius: 0.5rem;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: #ffffff;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--secondary-color);
}

/* Header Styles */
#header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  height: 80px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
}

#header.header-scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

#header #logo img {
  max-height: 50px;
  transition: var(--transition);
}

/* Navigation */
.navbar ul {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 2rem;
}

.navbar a {
  font-weight: 500;
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
}

.navbar a:hover,
.navbar a.active {
  color: var(--primary-color);
  background-color: rgba(37, 99, 235, 0.1);
}

/* Buttons */
.buy-tickets {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.buy-tickets:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background: var(--secondary-color);
  transform: translateY(-1px);
}

.btn-outline-primary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  background: transparent;
}

.btn-outline-primary:hover {
  background: var(--primary-color);
  color: white;
}

/* Hero Section */
#hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.1;
}

.hero-container {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 2rem;
}

#hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, #ffffff, #e0e7ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
}

/* Cards */
.card {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.speaker {
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  margin-bottom: 2rem;
}

.speaker:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.speaker .details {
  padding: 2rem;
  background: white;
  position: relative;
}

.speaker .details h3 {
  color: var(--text-primary);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.speaker .details p {
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.speaker .details strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Sections */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-header::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

#about {
  padding: 6rem 0;
  background: var(--light-color);
}

#Conferences {
  padding: 6rem 0;
}

#contact {
  padding: 6rem 0;
  background: var(--light-color);
}

/* Contact Section */
.contact-info {
  text-align: center;
  margin-bottom: 2rem;
}

.contact-info i {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  display: block;
}

.contact-info h3 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.contact-phone,
.contact-email {
  background: white;
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.contact-phone:hover,
.contact-email:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Footer */
#footer {
  background: var(--dark-color);
  color: white;
  padding: 4rem 0 2rem;
}

.footer-top {
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-info img {
  max-height: 60px;
  margin-bottom: 1rem;
}

.footer-links h4 {
  color: white;
  font-size: 1.1rem;
  margin-bottom: 1rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-links h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--primary-color);
}

.footer-links ul {
  list-style: none;
}

.footer-links ul li {
  margin-bottom: 0.5rem;
}

.footer-links ul a {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition);
}

.footer-links ul a:hover {
  color: var(--primary-color);
}

.copyright {
  text-align: center;
  padding-top: 2rem;
  color: rgba(255, 255, 255, 0.7);
}

/* Carousel Styles */
.owl-carousel .owl-nav button {
  background: var(--primary-color) !important;
  color: white !important;
  border-radius: 50% !important;
  width: 50px !important;
  height: 50px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 1.2rem !important;
  transition: var(--transition) !important;
}

.owl-carousel .owl-nav button:hover {
  background: var(--secondary-color) !important;
  transform: scale(1.1) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
  #hero h1 {
    font-size: 2.5rem;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .navbar ul {
    flex-direction: column;
    gap: 1rem;
  }
  
  .buy-tickets {
    margin-top: 1rem;
  }
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-primary { color: var(--primary-color); }
.bg-light { background-color: var(--light-color); }
.mt-5 { margin-top: 3rem; }
.mb-5 { margin-bottom: 3rem; }
.p-4 { padding: 2rem; }

/* Loading States */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(37, 99, 235, 0.3);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

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