/* Neuro Voices Pitch Day - Main Stylesheet */

:root {
  /* Color variables - using a neutral palette with good contrast */
  --primary-color: #160F26;
  --primary-dark: #017AAD;
  --secondary-color: #4f46e5;
  --accent-color: #7c3aed;
  --background-color: #ffffff;
  --alt-background-color: #E3FF6B;
  --text-color: #1f2937;
  --text-light: #6b7280;
  --text-dark: #111827;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --border-color: #e5e7eb;
  --alt-background2-color: #EF7A6F;
  
  /* Typography */
  --font-main: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-headings: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Border radius */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  
  /* Shadows */
  --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);
}

/* High contrast mode */
.high-contrast {
  --primary-color: #0000ff;
  --primary-dark: #0000cc;
  --secondary-color: #6600cc;
  --accent-color: #9900cc;
  --background-color: #ffffff;
  --alt-background-color: #f0f0f0;
  --text-color: #000000;
  --text-light: #333333;
  --text-dark: #000000;
  --border-color: #000000;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--text-color);
  background-color: var(--background-color);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
  color: var(--text-dark);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover, a:focus {
  color: var(--primary-dark);
  text-decoration: underline;
}

a:focus {
  outline: 3px solid rgba(37, 99, 235, 0.5);
  outline-offset: 2px;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xxl) 0;
}

.section-alt {
  background-color: var(--alt-background-color);
}

/* Header */
header {
  background-color: var(--background-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-md);
}

.logo {
  font-family: var(--font-headings);
  font-size: 1.5rem;
  font-weight: 700;
}

.logo a {
  color: var(--text-dark);
  text-decoration: none;
}

/* Navigation */
nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

nav a {
  color: var(--text-color);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
}

nav a:hover, nav a:focus {
  color: var(--primary-color);
  text-decoration: none;
}

nav a.active {
  color: var(--primary-color);
  font-weight: 600;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-color);
}

/* Hero section */
.hero {
  padding: var(--spacing-xxl) 0;
  text-align: center;
  background-color: var(--alt-background-color);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Sponsor section */
.sponsors {
  text-align: center;
}

.sponsor-title {
  margin-bottom: var(--spacing-xl);
}

.lead-sponsor {
  margin-bottom: var(--spacing-xl);
}

.lead-sponsor img {
  max-width: 250px;
  height: auto;
}

.sponsor-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: left;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
}

.sponsor-item {
  flex: 0 0 150px;
}

.sponsor-item img {
  max-width: 100%;
  height: auto;
}

/* Features section */
.features {
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.feature-item {
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  background-color: var(--background-color);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal);
}

.feature-item:hover {
  transform: translateY(-5px);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

/* CTA section */
.cta {
  text-align: center;
  background-color: var(--alt-background2-color);
  color: white;
}

.cta h2 {
  color: white;
}

/* Footer */
footer {
  background-color: var(--text-dark);
  color: white;
  padding: var(--spacing-xl) 0;
  margin-top: auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
}

.footer-column h3 {
  color: white;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
}

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

.footer-column li {
  margin-bottom: var(--spacing-sm);
}

.footer-column a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-column a:hover, .footer-column a:focus {
  color: white;
}

.footer-bottom {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
}

.btn:focus {
  outline: 3px solid rgba(37, 99, 235, 0.5);
  outline-offset: 2px;
}

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

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--primary-dark);
  color: white;
  text-decoration: none;
}

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

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--primary-color);
  color: white;
  text-decoration: none;
}

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

.btn-tertiary:hover, .btn-tertiary:focus {
  background-color: var(--alt-background-color);
  text-decoration: none;
}

/* Accessibility controls */
.accessibility-controls {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--background-color);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.accessibility-toggle {
  background-color: var(--alt-background-color);
  border: 1px solid var(--border-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.accessibility-toggle:hover {
  background-color: var(--border-color);
}

/* Countdown timer */
.countdown {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.countdown-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.countdown-label {
  font-size: 0.875rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Responsive styles */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--background-color);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md);
  }
  
  nav ul.show {
    display: flex;
  }
  
  .countdown {
    flex-wrap: wrap;
  }
}

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

.reduced-motion * {
  transition-duration: 0.01ms !important;
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
}

/* Font size adjustments */
.font-size-large {
  font-size: 1.2em;
}

.font-size-larger {
  font-size: 1.4em;
}

.font-size-largest {
  font-size: 1.6em;
}