@media (max-width: 767px) {
  .schedule-day h3 {
    font-size: 1.1rem;
  }
}
/* Mobile: Move event poster before paragraph in about section */
@media (max-width: 767px) {
  .grid-2 {
    display: flex;
    flex-direction: column;
  }
  .right-sidebar {
    order: 1;
    width: 100%;
    margin-bottom: 1.5rem;
  }
  .about-content {
    order: 2;
  }
}
/* Synergy'25 - Modern CSS Reset & Base Styles */
:root {
  --primary-blue: #1e3a8a;
  --primary-light: #3b82f6;
  --secondary-gold: #f59e0b;
  --secondary-light: #fbbf24;
  --accent-purple: #7c3aed;
  --accent-pink: #ec4899;
  --neutral-dark: #1f2937;
  --neutral-medium: #6b7280;
  --neutral-light: #f3f4f6;
  --white: #ffffff;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  
  --font-primary: 'Onest', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Unbounded', 'Onest', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  --container-max: 1200px;
  --container-padding: 1rem;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease-out;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--neutral-dark);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.5rem;
  color: var(--neutral-dark);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
  color: var(--neutral-medium);
}

.lead {
  font-size: 1.125rem;
  color: var(--neutral-dark);
  font-weight: 500;
}

/* Utility Classes */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: 4rem 0;
}

.section-lg {
  padding: 6rem 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-blue);
  color: var(--white);
  padding: 8px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  z-index: 9999;
}

.skip-link:focus {
  top: 6px;
}

/* Grid System */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  text-align: center;
  border-radius: var(--radius-md);
  transition: var(--transition);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  min-height: 44px; /* Accessibility: minimum touch target */
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-light));
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--accent-purple));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary-blue);
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-sm);
}

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

.btn-accent {
  background: linear-gradient(135deg, var(--secondary-gold), var(--secondary-light));
  color: var(--neutral-dark);
  box-shadow: var(--shadow-md);
}

.btn-accent:hover {
  background: linear-gradient(135deg, var(--secondary-light), var(--accent-pink));
  color: var(--white);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Card Components */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition);
}

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

.card-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--neutral-light);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  background: var(--neutral-light);
  border-top: 1px solid var(--neutral-light);
}

/* Badge Components */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-xl);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

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

.badge-secondary {
  background: var(--neutral-light);
  color: var(--neutral-dark);
}

.badge-accent {
  background: var(--secondary-gold);
  color: var(--neutral-dark);
}

.badge-success {
  background: var(--success);
  color: var(--white);
}

/* Navigation Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.header.scrolled {
  box-shadow: var(--shadow-lg);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  min-height: 70px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-blue);
}

.navbar-brand img {
  height: 40px;
  width: auto;
}

.navbar-nav {
  display: none;
  gap: 2rem;
}

.navbar-nav a {
  font-weight: 500;
  color: var(--neutral-dark);
  transition: var(--transition-fast);
  position: relative;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--primary-blue);
}

.navbar-nav a::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary-blue);
  transform: scaleX(0);
  transition: var(--transition-fast);
}

.navbar-nav a:hover::after,
.navbar-nav a.active::after {
  transform: scaleX(1);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-menu-toggle {
  display: block;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--neutral-dark);
  cursor: pointer;
  padding: 0.5rem;
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--white);
  border-top: 1px solid var(--neutral-light);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  padding: 1rem;
}

.mobile-nav a {
  padding: 1rem;
  border-bottom: 1px solid var(--neutral-light);
  font-weight: 500;
  color: var(--neutral-dark);
  transition: var(--transition-fast);
}

.mobile-nav a:hover {
  background: var(--neutral-light);
  color: var(--primary-blue);
}

/* Hero Section */
.hero {
  background: #00000000;
  color: var(--white);
  padding: 8rem 0 4rem;
  position: relative;
  overflow: hidden;
  margin-top: 70px;
}



.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

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

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.hero-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

/* Responsive Design */

/* Mobile styles */
@media (max-width: 767px) {
  :root {
    font-size: 14px;
  }
  
  .events-grid.grid-3 {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  h3 {
    font-size: 1.5rem;
  }
  
  h4 {
    font-size: 1.25rem;
  }
  
  .lead {
    font-size: 1rem;
  }
  
  .btn {
    font-size: 0.875rem;
    padding: 0.75rem 1.25rem;
  }
  
  .hero {
    height: 100vh;
    display: flex;
    align-items: center;
  }
  
  .hero-meta {
    text-align: center;
  }
}
@media (max-width: 767px) {
  .hero-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    text-align: center;
  }
  .hero-meta-item {
    justify-content: center;
    width: 100%;
  }
}

/* Ensure mobile event image height overrides desktop */
@media (max-width: 767px) {
  .event-image {
    height: 300px !important;
  }
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
  
  .navbar-nav {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
  
  .section {
    padding: 5rem 0;
  }
  
  .section-lg {
    padding: 8rem 0;
  }
  
  .hero {
    padding: 10rem 0 6rem;
  }
}

@media (min-width: 1024px) {
  :root {
    --container-padding: 2rem;
  }
  
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  
  .hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
  }
}

/* Focus States for Accessibility */
*:focus {
  outline: none;
}

button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}

a:focus {
  outline: none;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --primary-blue: #000080;
    --neutral-dark: #000000;
    --neutral-medium: #333333;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* Event Image Height */
.event-image {
  height: 500px;
}

/* Event Name Font Size */
.event-card h3 {
  font-size: 1rem;
}