/* Section Dividers */
.section-divider {
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: var(--space-2xl) 0;
}

/* Mobile Menu Social Link Fix */
.mobile-menu .social-link {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mobile-menu .social-link span {
  text-decoration: none;
}

/* Fonts */
@font-face {
  font-family: 'Geologica';
  src: url('./fonts/geologica/Geologica-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'Geologica';
  src: url('./fonts/geologica/Geologica-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: 'Geologica';
  src: url('./fonts/geologica/Geologica-Bold.ttf') format('truetype');
  font-weight: 700;
  font-display: swap;
}

/* Design System */
:root {
  /* Colors */
  --primary: #FFD700;
  --secondary: #00FF7F;
  --bg: #0a0a0a;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --text: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  
  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  
  /* Typography */
  --font-body: 'Geologica', sans-serif;
  --font-heading: 'Geologica', sans-serif;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Shadows */
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.24);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.32);
  --glow: 0 0 40px rgba(255, 215, 0, 0.3);
  --glow-green: 0 0 40px rgba(0, 255, 127, 0.3);
}

/* Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Canvas */
#waveCanvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.6;
  transition: opacity 0.3s;
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 1000;
  transition: background 0.3s;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  transition: transform 0.3s var(--ease);
}

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

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 400;
  font-size: 0.95rem;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.3s var(--ease);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: translateX(-50%);
  transition: width 0.3s var(--ease);
}

.nav-link:hover {
  color: var(--primary);
  background: var(--surface);
}

.nav-link:hover::after {
  width: 80%;
}

.social-link {
  color: var(--text);
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: all 0.3s var(--ease);
  display: flex;
}

.social-link:hover {
  color: var(--primary);
  background: var(--surface);
  transform: translateY(-2px);
}

/* Hiring Link */
.hiring-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px 18px;
  border: 1px solid rgba(255, 215, 0, 0.3);
  border-radius: 20px;
  transition: all 0.3s var(--ease-spring);
}

.hiring-link:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--bg);
  transform: translateY(-2px);
  box-shadow: var(--glow);
}

.notification-dot {
  width: 6px;
  height: 6px;
  background: #ff4757;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: all 0.3s;
}

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(24px);
  z-index: 1002;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu-close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: none;
  border: none;
  color: var(--text);
  font-size: 32px;
  cursor: pointer;
  padding: 8px;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 80px;
}

.hero-content {
  max-width: 900px;
  animation: fadeInUp 1s ease;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 3vw, 1.3rem);
  margin-bottom: var(--space-xl);
  color: var(--text-secondary);
  font-weight: 400;
}

.scroll-arrow {
  display: inline-flex;
  margin-top: var(--space-xl);
  color: var(--text-muted);
  padding: 8px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s;
  animation: float 3s ease-in-out infinite;
}

.scroll-arrow:hover {
  color: var(--primary);
  background: var(--surface-hover);
  transform: translateY(3px);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Sections */
.section {
  padding: 100px 0;
}

.section-title {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* About */
.about-content {
  max-width: 800px;
  margin: 0 auto var(--space-2xl);
}

.about-text {
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.about-secondary {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1.7;
}

.about-text strong {
  color: var(--text);
  font-weight: 600;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-lg);
  padding: 10px 18px;
  background: var(--surface);
  border: 1px solid rgba(255, 215, 0, 0.15);
  border-radius: 20px;
  transition: all 0.3s;
}

.hero-badge::before {
  content: '✨';
  font-size: 14px;
}

.badge-text {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Methodology */
.methodology {
  max-width: 900px;
  margin: 0 auto var(--space-2xl);
}

.methodology-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  text-align: center;
  color: var(--primary);
}

.methodology-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.methodology-item {
  background: var(--surface);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 215, 0, 0.1);
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}

.methodology-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: transform 0.4s var(--ease);
}

.methodology-item:hover {
  background: var(--surface-hover);
  transform: translateY(-4px);
  border-color: rgba(255, 215, 0, 0.3);
  box-shadow: var(--shadow);
}

.methodology-item:hover::before {
  transform: scaleX(1);
}

.methodology-label {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text);
}

.methodology-desc {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Traffic Sources */
.traffic-sources {
  max-width: 900px;
  margin: 0 auto;
}

.traffic-sources-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  text-align: center;
  color: var(--primary);
}

.traffic-sources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.traffic-source {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: var(--space-md);
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 215, 0, 0.08);
  transition: all 0.4s var(--ease-spring);
  position: relative;
}

.traffic-source::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
  border-radius: var(--radius-lg);
}

.traffic-source:hover {
  transform: translateY(-6px) scale(1.03);
  border-color: rgba(255, 215, 0, 0.3);
  box-shadow: var(--shadow), var(--glow);
}

.traffic-source:hover::before {
  opacity: 1;
}

.traffic-source-logo {
  width: 180px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.traffic-source-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: brightness(1);
  transition: all 0.3s;
}

.traffic-source:hover .traffic-source-logo img {
  filter: brightness(1.2);
}

/* Services */
.services.inverted {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  position: relative;
}

.services.inverted::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255, 215, 0, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.services.inverted .section-title {
  color: var(--bg);
}

.services.inverted .section-subtitle {
  color: rgba(26, 26, 26, 0.7);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.service-card {
  background: #ffffff;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid rgba(26, 26, 26, 0.08);
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: transform 0.4s var(--ease);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--bg);
}

.service-description {
  font-size: 0.95rem;
  font-weight: 400;
  color: rgba(26, 26, 26, 0.65);
  line-height: 1.6;
}

.approach {
  margin-top: var(--space-2xl);
  max-width: 800px;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.approach p {
  font-size: 0.95rem;
  font-weight: 400;
  color: rgba(26, 26, 26, 0.6);
  font-style: italic;
}

/* Events */
.events-section-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary);
  text-align: center;
  margin-bottom: var(--space-lg);
}

.conferences-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.conference-card {
  background: var(--surface);
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid rgba(0, 255, 127, 0.08);
  transition: all 0.4s var(--ease-spring);
  flex: 0 1 300px;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}

.conference-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(0, 255, 127, 0.08) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
  border-radius: var(--radius-lg);
}

.conference-card:hover {
  transform: translateY(-6px) scale(1.03);
  border-color: rgba(0, 255, 127, 0.3);
  box-shadow: var(--shadow), var(--glow-green);
}

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

.conference-logo-wrapper {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
}

.conference-card:hover .conference-logo-wrapper {
  transform: scale(1.1);
}

.conference-logo-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.conference-date {
  color: var(--secondary);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: var(--space-xs);
}

.conference-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.conference-location {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.conference-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
  transition: all 0.3s;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.conference-card:hover .conference-link {
  color: var(--secondary);
  background: rgba(0, 255, 127, 0.1);
}

/* Past Events */
.past-events-section {
  margin-top: var(--space-2xl);
  text-align: center;
}

.past-events-toggle {
  background: rgba(255, 215, 0, 0.1);
  border: 1px solid rgba(255, 215, 0, 0.2);
  color: var(--primary);
  padding: 8px var(--space-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
}

.past-events-toggle:hover {
  background: var(--primary);
  color: var(--bg);
  transform: translateY(-2px);
}

.past-events-toggle .chevron {
  transition: transform 0.3s;
}

.past-events-toggle.active .chevron {
  transform: rotate(180deg);
}

.past-events-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.past-events-content.active {
  max-height: 1000px;
  margin-top: var(--space-lg);
}

.past-events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-sm);
  max-width: 900px;
  margin: 0 auto;
}

.past-conference-card {
  background: rgba(255, 255, 255, 0.03);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s;
}

.past-conference-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 215, 0, 0.2);
}

.past-conference-date {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.7rem;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.past-conference-name {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--text-secondary);
}

.past-conference-location {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
}

/* Contact */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  max-width: 900px;
  margin: 0 auto;
}

.contact-info h3 {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--primary);
}

.contact-info p {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.contact-email {
  font-size: 1.1rem;
  font-weight: 400;
  margin-bottom: var(--space-lg);
}

.contact-email a {
  color: var(--primary);
  text-decoration: none;
  transition: all 0.3s;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.contact-email a:hover {
  color: var(--secondary);
  background: var(--surface);
}

.careers-link {
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.careers-link-text {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
}

.careers-link-text:hover {
  color: var(--secondary);
}

/* Form */
.contact-form {
  background: var(--surface);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 215, 0, 0.1);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group input,
.form-group textarea {
  font-family: var(--font-body);
  width: 100%;
  padding: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 15px;
  transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.submit-button {
  font-family: var(--font-body);
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--bg);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s var(--ease-spring);
}

.submit-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow);
}

.submit-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Footer */
.footer {
  background: rgba(0, 0, 0, 0.5);
  padding: var(--space-xl) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 400;
}

.footer-linkedin {
  color: var(--text-muted);
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: all 0.3s;
}

.footer-linkedin:hover {
  color: var(--primary);
  background: var(--surface);
  transform: translateY(-2px);
}

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

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }

  .nav {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding-top: 100px;
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .methodology-grid,
  .services-grid {
    grid-template-columns: 1fr;
  }

  .traffic-sources-grid {
    grid-template-columns: 1fr;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

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

  .past-events-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .past-events-grid {
    grid-template-columns: 1fr;
  }
}