/* ==========================================
   CSS VARIABLES & DESIGN TOKENS
   ========================================== */
:root {
  /* Colors - Primary Palette */
  --color-primary: #326CE5;        /* Kubernetes blue */
  --color-primary-dark: #2456C1;
  --color-primary-light: #5A8EF0;
  --color-secondary: #00D4AA;      /* Accent teal */
  --color-secondary-dark: #00B894;
  
  /* CFP Standout Colors */
  --color-cfp: #FF6B35;            /* High-contrast orange */
  --color-cfp-hover: #FF4814;
  --color-cfp-glow: rgba(255, 107, 53, 0.4);
  
  /* Neutrals */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F8F9FA;
  --color-bg-dark: #1A1D23;
  --color-text-primary: #1A1D23;
  --color-text-secondary: #4A5568;
  --color-text-muted: #718096;
  --color-border: #E2E8F0;
  --color-shadow: rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  
  /* Font Sizes (fluid typography) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Layout */
  --container-max: 1200px;
  --container-padding: var(--space-lg);
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

/* ==========================================
   BASE RESET & TYPOGRAPHY
   ========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

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

a:hover {
  color: var(--color-primary-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.text-center { text-align: center; }
.hidden { display: none !important; }

.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.5rem;
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(2px);
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

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

.btn-large {
  padding: 1rem 2rem;
  font-size: var(--text-lg);
}

/* CFP Button Variants with Standout Styling */
.btn-pulse {
  position: relative;
  background: var(--color-cfp);
  border-color: var(--color-cfp);
  animation: pulse 2s infinite;
}

.btn-pulse:hover {
  background: var(--color-cfp-hover);
  border-color: var(--color-cfp-hover);
  animation: none;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 var(--color-cfp-glow);
  }
  50% {
    box-shadow: 0 0 0 10px transparent;
  }
}

/* ==========================================
   HEADER / NAVIGATION
   ========================================== */
.site-header {
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.site-header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 80px;
  width: auto;
}

.nav-links {
  display: none;
  list-style: none;
  gap: var(--space-xl);
  align-items: center;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.nav-cta {
  padding: 0.5rem 1rem;
  background: var(--color-cfp);
  color: white !important;
  border-radius: var(--border-radius);
  font-weight: 600;
}

.nav-cta:hover {
  background: var(--color-cfp-hover);
  transform: translateY(-1px);
}

.nav-social {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-social a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
}

.nav-social a:hover {
  color: var(--color-primary);
}

.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
}

/* ==========================================
   STICKY CFP BUTTON
   ========================================== */
.sticky-cfp {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  background: var(--color-cfp);
  color: white;
  border: none;
  padding: 1rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: var(--text-base);
  box-shadow: var(--shadow-xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  z-index: 99;
  opacity: 0;
  transform: translateY(100px);
  transition: all var(--transition-base);
}

.sticky-cfp.visible {
  opacity: 1;
  transform: translateY(0);
}

.sticky-cfp:hover {
  background: var(--color-cfp-hover);
  transform: translateY(-2px);
  box-shadow: 0 20px 30px -10px var(--color-cfp-glow);
}

.sticky-cfp svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 640px) {
  .sticky-cfp {
    bottom: var(--space-md);
    right: var(--space-md);
    padding: 0.75rem 1rem;
    font-size: var(--text-sm);
  }
  
  .sticky-cfp span {
    display: none;
  }
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  position: relative;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: var(--space-4xl) 0 var(--space-3xl);
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-text h1 {
  color: white;
  margin-bottom: var(--space-md);
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.hero-tagline {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.hero-visual {
  position: relative;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-graphic {
  position: relative;
  width: 300px;
  height: 300px;
}

.graphic-circle {
  position: absolute;
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.graphic-circle-1 {
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  top: 50px;
  left: 50px;
  animation-delay: 0s;
}

.graphic-circle-2 {
  width: 150px;
  height: 150px;
  background: rgba(255, 255, 255, 0.15);
  top: 100px;
  left: 100px;
  animation-delay: 1s;
}

.graphic-circle-3 {
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.2);
  top: 150px;
  left: 150px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: 1;
}

.hero-wave svg {
  width: 100%;
  height: 100%;
}

@media (min-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .hero {
    padding: var(--space-4xl) 0 calc(var(--space-4xl) + 80px);
  }
}

/* ==========================================
   VIDEOS SECTION
   ========================================== */
.videos-section {
  background: var(--color-bg-secondary);
}

.subscribe-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 1rem;
  background: #FF0000;
  color: white;
  border-radius: 50px;
  font-weight: 600;
  margin-top: var(--space-sm);
  transition: all var(--transition-fast);
}

.subscribe-badge:hover {
  background: #CC0000;
  transform: scale(1.05);
}

.subscribe-badge svg {
  width: 24px;
  height: 24px;
}

.featured-video {
  margin-bottom: var(--space-3xl);
}

.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  background: var(--color-bg-dark);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.video-card {
  background: white;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-base);
  transition: all var(--transition-base);
}

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

.video-thumbnail {
  position: relative;
  display: block;
  overflow: hidden;
  padding-bottom: 56.25%;
  background: var(--color-bg-dark);
}

.video-thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.video-card:hover .video-thumbnail img {
  transform: scale(1.05);
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(255, 0, 0, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: all var(--transition-fast);
}

.video-card:hover .play-button {
  background: #FF0000;
  transform: translate(-50%, -50%) scale(1.1);
}

.video-info {
  padding: var(--space-lg);
}

.video-info h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
}

.video-meta {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
}

@media (min-width: 640px) {
  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .video-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================
   CFP SECTION
   ========================================== */
.cfp-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
}

.cfp-banner {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-xl);
  padding: var(--space-3xl);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.cfp-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--color-cfp);
  color: white;
  border-radius: 50px;
  font-weight: 600;
  font-size: var(--text-sm);
  margin-bottom: var(--space-md);
}

.cfp-content h2 {
  color: white;
  margin-bottom: var(--space-md);
}

.cfp-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--text-lg);
  margin-bottom: var(--space-xl);
}

.cfp-highlights {
  list-style: none;
  margin-bottom: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.cfp-highlights li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255, 255, 255, 0.95);
}

.cfp-highlights svg {
  flex-shrink: 0;
  color: var(--color-secondary);
}

.cfp-visual {
  display: none;
}

.cfp-visual svg {
  width: 100%;
  height: auto;
  max-width: 300px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .cfp-banner {
    grid-template-columns: 1.5fr 1fr;
  }
  
  .cfp-visual {
    display: block;
  }
}

/* ==========================================
   ABOUT SECTION
   ========================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

.about-card {
  background: white;
  padding: var(--space-2xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-base);
  text-align: center;
  transition: all var(--transition-base);
}

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

.card-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-radius: var(--border-radius-lg);
  color: white;
}

.about-card h3 {
  margin-bottom: var(--space-md);
}

.about-card p {
  color: var(--color-text-secondary);
  margin: 0;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================
   SPEAKERS SECTION
   ========================================== */
.speakers-section {
  background: var(--color-bg-secondary);
}

.speakers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

.speaker-card {
  background: white;
  padding: var(--space-2xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-base);
  text-align: center;
  transition: all var(--transition-base);
}

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

.speaker-avatar {
  width: 150px;
  height: 150px;
  margin: 0 auto var(--space-lg);
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-primary);
}

.speaker-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.speaker-card h3 {
  margin-bottom: var(--space-xs);
}

.speaker-title {
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.speaker-bio {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.speaker-socials {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.speaker-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-bg-secondary);
  transition: all var(--transition-fast);
}

.speaker-socials a:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
}

.speaker-socials svg {
  width: 20px;
  height: 20px;
  fill: var(--color-text-primary);
}

.speaker-socials a:hover svg {
  fill: white;
}

@media (min-width: 640px) {
  .speakers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .speakers-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================
   ORGANIZERS SECTION
   ========================================== */
.organizers-section {
  background: var(--color-bg-primary);
}

/* ==========================================
   SPONSORS SECTION
   ========================================== */
.sponsors-section {
  background: var(--color-bg-secondary);
  text-align: center;
}

.sponsors-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-2xl);
}

.sponsor-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
  text-decoration: none;
  color: var(--color-text-primary);
  min-width: 200px;
}

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

.sponsor-card img {
  max-width: 180px;
  max-height: 80px;
  object-fit: contain;
}

.sponsor-card span {
  font-weight: 600;
  color: var(--color-text-secondary);
}

/* ==========================================
   FOOTER
   ========================================== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand img {
  margin-bottom: var(--space-md);
  filter: brightness(0) invert(1);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  max-width: 300px;
}

.footer-links h4 {
  color: white;
  margin-bottom: var(--space-md);
  font-size: var(--text-lg);
}

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

.footer-links ul li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transition: all var(--transition-fast);
}

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

.social-links svg {
  width: 20px;
  height: 20px;
  fill: white;
}

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

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

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

/* ==========================================
   MODAL
   ========================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: white;
  border-radius: var(--border-radius-xl);
  padding: var(--space-2xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  z-index: 1;
}

.modal-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  transition: background var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-bg-secondary);
}

.modal-close svg {
  width: 24px;
  height: 24px;
  color: var(--color-text-primary);
}

.modal-content h2 {
  margin-bottom: var(--space-md);
  padding-right: var(--space-3xl);
}

.modal-content > p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

/* ==========================================
   FORMS
   ========================================== */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
}

.required {
  color: #EF4444;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: var(--text-base);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(50, 108, 229, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
  margin-top: var(--space-xl);
}

/* ==========================================
   ANIMATIONS
   ========================================== */
.reveal-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-up.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 0.5rem 1rem;
  text-decoration: none;
  z-index: 1001;
}

.skip-to-content:focus {
  top: 0;
}

/* Focus visible styles */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ==========================================
   RESPONSIVE UTILITIES
   ========================================== */
@media (max-width: 640px) {
  .hero-ctas {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ==========================================
   PRINT STYLES
   ========================================== */
@media print {
  .site-header,
  .sticky-cfp,
  .mobile-menu-toggle,
  .modal,
  .btn {
    display: none;
  }
}