/* css/styles.css */

:root {
  /* Primary color palette inspired by biohacking/tech aesthetic */
  --primary-color: #00d4ff; /* Cyan blue - common in biohacking logos */
  --secondary-color: #0066cc; /* Deep blue */
  --accent-color: #00ff88; /* Bright green */
  --dark-color: #1a1a2e; /* Dark navy */
  --light-color: #f8f9fa;
  --text-color: #333;
  --text-light: #666;
  --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}

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

body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--light-color);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header Styles */
.header {
  background: var(--gradient);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header .container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.logo {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo-img {
  height: 50px;
  width: auto;
}

.nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
}

.nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: 25px;
  transition: all 0.3s ease;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.2);
  opacity: 1;
}

/* Hero Section */
.hero {
  background: var(--gradient);
  color: white;
  padding: 6rem 0;
  text-align: center;
  display: flex;
  align-items: center;
  min-height: 70vh;
}

.hero-content {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1.5rem;
  font-weight: bold;
  line-height: 1.2;
}

.hero h2 {
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  margin-bottom: 3rem;
  font-weight: 300;
  opacity: 0.9;
  line-height: 1.4;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 3rem;
}

.media-mentions {
  margin-top: 3rem;
}

.media-mentions p {
  margin-bottom: 1.5rem;
  font-size: clamp(1rem, 2vw, 1.2rem);
}

.media-logos {
  display: flex;
  justify-content: center;
  gap: 2rem;
  align-items: center;
  flex-wrap: wrap;
}

.media-logo {
  height: 50px;
  width: auto;
  background: white;
  padding: 0.8rem;
  border-radius: 12px;
  transition: transform 0.3s ease;
}

.media-logo:hover {
  transform: scale(1.05);
}

/* Speakers Preview */
.speakers-preview {
  padding: 5rem 0;
  background: white;
  text-align: center;
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  justify-items: center;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.speaker-card {
  text-align: center;
  transition: transform 0.3s ease;
  width: 100%;
  max-width: 200px;
}

.speaker-card:hover {
  transform: translateY(-8px);
}

.speaker-card img {
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--primary-color);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.speaker-card:hover img {
  border-color: var(--accent-color);
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

/* Learning Section */
.learning-section {
  padding: 5rem 0;
  background: linear-gradient(45deg, #f8f9fa, #e9ecef);
}

.learning-section h2 {
  text-align: center;
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 4rem;
  color: var(--dark-color);
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
  justify-items: center;
}

.learning-item {
  background: white;
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
  width: 100%;
  max-width: 400px;
  border-top: 4px solid var(--primary-color);
}

.learning-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.learning-item h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.learning-item p {
  color: var(--text-light);
  line-height: 1.6;
  font-size: 1rem;
}

/* Speakers Detailed */
.speakers-detailed {
  padding: 5rem 0;
  background: white;
}

.speakers-detailed h2 {
  text-align: center;
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 4rem;
  color: var(--dark-color);
}

.speaker-detail {
  margin-bottom: 3rem;
  padding: 2.5rem;
  background: linear-gradient(135deg, #f8f9fa, white);
  border-radius: 16px;
  border-left: 6px solid var(--primary-color);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 3rem;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.speaker-detail:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.speaker-detail h3 {
  color: var(--secondary-color);
  margin-bottom: 1.5rem;
  font-size: clamp(1.2rem, 3vw, 1.6rem);
}

.speaker-detail p {
  color: var(--text-light);
  line-height: 1.7;
  font-size: 1.05rem;
  text-align: left;
}

/* Schedule Section */
.schedule {
  padding: 5rem 0;
  background: var(--dark-color);
  color: white;
}

.schedule h2 {
  text-align: center;
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 4rem;
}

.schedule-grid {
  max-width: 900px;
  margin: 0 auto;
}

.schedule-item {
  display: flex;
  padding: 2rem;
  margin-bottom: 1.5rem;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  transition: all 0.3s ease;
  align-items: center;
  border-left: 4px solid var(--primary-color);
}

.schedule-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(10px);
}

.schedule-item.break {
  background: var(--gradient);
  border-left: 4px solid var(--accent-color);
}

.schedule-item .time {
  font-weight: bold;
  color: var(--primary-color);
  min-width: 160px;
  font-size: 1.1rem;
}

.schedule-item .activity {
  flex: 1;
  font-size: 1.05rem;
  padding-left: 1rem;
}

/* CTA Section */
.cta {
  padding: 5rem 0;
  background: var(--gradient-accent);
  color: white;
  text-align: center;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.cta-content p {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  margin-bottom: 3rem;
  opacity: 0.9;
  line-height: 1.5;
}

.cta-button {
  background: white;
  color: var(--secondary-color);
  padding: 1.2rem 3rem;
  border: none;
  border-radius: 50px;
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  background: #f0f0f0;
}

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

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  max-width: 800px;
  margin: 0 auto;
  justify-items: center;
}

.footer-section {
  text-align: center;
}

.footer-section h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  font-size: 1.3rem;
}

.footer-section p {
  opacity: 0.8;
  line-height: 1.6;
  font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }
  
  .hero {
    padding: 4rem 0;
    min-height: 60vh;
  }
  
  .learning-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .learning-item {
    max-width: 100%;
    padding: 2rem;
  }
  
  .speakers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .speaker-card img {
    width: 140px;
    height: 140px;
  }
  
  .nav ul {
    gap: 1rem;
  }
  
  .nav a {
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
  }
  
  .header .container {
    gap: 1rem;
  }
  
  .schedule-item {
    flex-direction: column;
    gap: 0.8rem;
    text-align: center;
    padding: 1.5rem;
  }
  
  .schedule-item .time {
    min-width: auto;
    font-size: 1rem;
  }
  
  .schedule-item .activity {
    padding-left: 0;
  }
  
  .speaker-detail {
    padding: 2rem;
  }
  
  .media-logos {
    gap: 1rem;
  }
  
  .media-logo {
    height: 45px;
  }
}

@media (max-width: 480px) {
  .speakers-grid {
    grid-template-columns: 1fr;
  }
  
  .speaker-card img {
    width: 160px;
    height: 160px;
  }
  
  .learning-item {
    padding: 1.5rem;
  }
  
  .schedule-item {
    padding: 1.2rem;
  }
  
  .speaker-detail {
    padding: 1.5rem;
    margin-bottom: 2rem;
  }
  
  .cta-button {
    padding: 1rem 2rem;
  }
  
  .media-logos {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }
}