/* CSS Custom Properties */
:root {
  /* Color Palette - Indigo to Pink Gradient with Lime Accent */
  --primary-gradient: linear-gradient(135deg, #4F46E5 0%, #EC4899 100%);
  --primary-gradient-hover: linear-gradient(135deg, #4338CA 0%, #DB2777 100%);
  --accent-color: #84CC16;
  --accent-hover: #65A30D;
  
  /* Neutral Colors */
  --bg-primary: #0F0F23;
  --bg-secondary: #1A1A2E;
  --bg-card: #16213E;
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #64748B;
  
  /* Gradients */
  --mesh-gradient: radial-gradient(ellipse at top left, rgba(79, 70, 229, 0.3) 0%, rgba(236, 72, 153, 0.2) 50%, rgba(132, 204, 22, 0.1) 100%);
  --card-gradient: linear-gradient(145deg, rgba(22, 33, 62, 0.9) 0%, rgba(26, 26, 46, 0.8) 100%);
  
  /* Typography */
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-accent: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing */
  --container-max-width: 1280px;
  --section-padding: 6rem 0;
  --card-padding: 2rem;
  
  /* Animations */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

.dfs-body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container */
.dfs-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header and Navigation */
.dfs-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 35, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(79, 70, 229, 0.2);
}

.dfs-nav__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dfs-logo__text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.dfs-nav__menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.dfs-nav__link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.dfs-nav__link:hover {
  color: var(--text-primary);
}

.dfs-nav__link::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-gradient);
  transition: var(--transition-normal);
}

.dfs-nav__link:hover::after {
  width: 100%;
}

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

.dfs-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: var(--transition-fast);
}

/* Hero Section */
.dfs-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--mesh-gradient);
}

.dfs-hero__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
  z-index: 2;
}

.dfs-hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.dfs-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.dfs-typewriter {
  position: relative;
  color: var(--text-secondary);
}

.dfs-typewriter::after {
  content: '|';
  color: var(--accent-color);
  animation: dfs-blink 1s infinite;
}

.dfs-gradient-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.dfs-hero__subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 500px;
}

.dfs-hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.dfs-btn {
  display: inline-flex;
  align-items: center;
  padding: 1rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.dfs-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-slow);
}

.dfs-btn:hover::before {
  left: 100%;
}

.dfs-btn--primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 8px 32px rgba(79, 70, 229, 0.3);
}

.dfs-btn--primary:hover {
  background: var(--primary-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(79, 70, 229, 0.4);
}

.dfs-btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid rgba(79, 70, 229, 0.5);
  backdrop-filter: blur(10px);
}

.dfs-btn--secondary:hover {
  border-color: var(--accent-color);
  background: rgba(132, 204, 22, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(132, 204, 22, 0.2);
}

.dfs-btn--outline {
  background: transparent;
  color: var(--accent-color);
  border: 2px solid var(--accent-color);
}

.dfs-btn--outline:hover {
  background: var(--accent-color);
  color: var(--bg-primary);
}

/* 3D Visual Elements */
.dfs-3d-container {
  position: relative;
  width: 400px;
  height: 400px;
  perspective: 1000px;
}

.dfs-floating-icon {
  position: absolute;
  font-size: 3rem;
  animation: dfs-float 6s ease-in-out infinite;
  filter: drop-shadow(0 8px 16px rgba(79, 70, 229, 0.3));
}

.dfs-floating-icon--nfl {
  top: 10%;
  left: 20%;
  animation-delay: 0s;
}

.dfs-floating-icon--nba {
  top: 20%;
  right: 10%;
  animation-delay: 1s;
}

.dfs-floating-icon--mlb {
  bottom: 30%;
  left: 10%;
  animation-delay: 2s;
}

.dfs-floating-icon--nhl {
  bottom: 20%;
  right: 20%;
  animation-delay: 3s;
}

.dfs-floating-icon--soccer {
  top: 50%;
  left: 50%;
  animation-delay: 4s;
  transform: translate(-50%, -50%);
}

.dfs-floating-icon--golf {
  top: 70%;
  right: 30%;
  animation-delay: 5s;
}

.dfs-hero__particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background-image: 
    radial-gradient(2px 2px at 20px 30px, var(--accent-color), transparent),
    radial-gradient(2px 2px at 40px 70px, rgba(79, 70, 229, 0.8), transparent),
    radial-gradient(1px 1px at 90px 40px, rgba(236, 72, 153, 0.8), transparent),
    radial-gradient(1px 1px at 130px 80px, var(--accent-color), transparent);
  background-repeat: repeat;
  background-size: 200px 100px;
  animation: dfs-particles 20s linear infinite;
}

/* Sections */
.dfs-section {
  padding: var(--section-padding);
  position: relative;
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-slow);
}

.dfs-section.dfs-animate-in {
  opacity: 1;
  transform: translateY(0);
}

.dfs-section__header {
  text-align: center;
  margin-bottom: 4rem;
}

.dfs-section__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dfs-section__subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* What is DFS Section */
.dfs-what-is {
  background: var(--bg-secondary);
}

.dfs-infographic {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 4rem;
  flex-wrap: wrap;
}

.dfs-infographic__item {
  text-align: center;
  padding: 2rem;
  background: var(--card-gradient);
  border-radius: 20px;
  border: 1px solid rgba(79, 70, 229, 0.2);
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
  min-width: 200px;
}

.dfs-infographic__item:hover {
  transform: translateY(-8px);
  border-color: var(--accent-color);
  box-shadow: 0 12px 40px rgba(79, 70, 229, 0.2);
}

.dfs-infographic__icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 4px 8px rgba(79, 70, 229, 0.3));
}

.dfs-infographic__item h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.dfs-infographic__arrow {
  font-size: 2rem;
  color: var(--accent-color);
  animation: dfs-pulse 2s infinite;
}

.dfs-comparison {
  margin-bottom: 4rem;
  padding: 3rem;
  background: var(--card-gradient);
  border-radius: 24px;
  border: 1px solid rgba(79, 70, 229, 0.2);
}

.dfs-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: rgba(79, 70, 229, 0.2);
  outline: none;
  margin-bottom: 2rem;
  -webkit-appearance: none;
}

.dfs-slider::-webkit-slider-thumb {
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-gradient);
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.dfs-comparison__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.dfs-comparison__side h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.dfs-comparison__side ul {
  list-style: none;
}

.dfs-comparison__side li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  position: relative;
  padding-left: 1.5rem;
}

.dfs-comparison__side li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: 600;
}

.dfs-sports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.dfs-sport-card {
  padding: 2rem;
  background: var(--card-gradient);
  border-radius: 16px;
  border: 1px solid rgba(79, 70, 229, 0.2);
  text-align: center;
  transition: var(--transition-normal);
  cursor: pointer;
}

.dfs-sport-card:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--accent-color);
  box-shadow: 0 12px 40px rgba(79, 70, 229, 0.25);
}

.dfs-sport-card__icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
  animation: dfs-bounce 2s infinite;
}

.dfs-sport-card__title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.dfs-sport-card__desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Rules Section */
.dfs-rules {
  background: var(--bg-primary);
}

.dfs-tabs {
  max-width: 900px;
  margin: 0 auto;
}

.dfs-tabs__nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  background: rgba(22, 33, 62, 0.5);
  border-radius: 12px;
  padding: 0.5rem;
}

.dfs-tab-btn {
  flex: 1;
  padding: 1rem 1.5rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.dfs-tab-btn--active {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.3);
}

.dfs-tab-panel {
  display: none;
  padding: 2rem;
  background: var(--card-gradient);
  border-radius: 16px;
  border: 1px solid rgba(79, 70, 229, 0.2);
}

.dfs-tab-panel--active {
  display: block;
  animation: dfs-fadeIn 0.3s ease-out;
}

.dfs-contest-types {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.dfs-contest-card {
  padding: 2rem;
  background: rgba(15, 15, 35, 0.8);
  border-radius: 12px;
  border: 1px solid rgba(79, 70, 229, 0.3);
  text-align: center;
}

.dfs-contest-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.dfs-contest-visual {
  margin: 1.5rem 0;
}

.dfs-prize-pool {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.dfs-entries {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.dfs-salary-calculator {
  text-align: center;
}

.dfs-calculator {
  max-width: 400px;
  margin: 0 auto;
  padding: 2rem;
  background: rgba(15, 15, 35, 0.8);
  border-radius: 16px;
  border: 1px solid rgba(79, 70, 229, 0.3);
}

.dfs-salary-remaining {
  font-size: 3rem;
  font-weight: 700;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.dfs-salary-label {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.dfs-position-slots {
  display: grid;
  gap: 0.5rem;
}

.dfs-slot {
  padding: 0.75rem;
  background: rgba(79, 70, 229, 0.1);
  border-radius: 8px;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
}

/* Scoring Section */
.dfs-scoring {
  background: var(--bg-secondary);
}

.dfs-sport-selector {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.dfs-sport-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  border: 2px solid rgba(79, 70, 229, 0.3);
  background: transparent;
  color: var(--text-secondary);
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
}

.dfs-sport-btn--active {
  border-color: var(--accent-color);
  background: rgba(132, 204, 22, 0.1);
  color: var(--accent-color);
}

.dfs-sport-icon {
  font-size: 1.5rem;
  animation: dfs-rotate 3s linear infinite;
}

.dfs-scoring-tables {
  max-width: 800px;
  margin: 0 auto;
}

.dfs-scoring-table {
  display: none;
}

.dfs-scoring-table--active {
  display: block;
  animation: dfs-slideIn 0.4s ease-out;
}

.dfs-scoring-table h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: center;
  color: var(--text-primary);
}

.dfs-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-gradient);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(79, 70, 229, 0.2);
}

.dfs-table th {
  background: rgba(79, 70, 229, 0.2);
  padding: 1rem;
  text-align: left;
  color: var(--text-primary);
  font-weight: 600;
}

.dfs-table-row {
  transition: var(--transition-fast);
}

.dfs-table-row:hover {
  background: rgba(79, 70, 229, 0.1);
}

.dfs-table td {
  padding: 1rem;
  border-top: 1px solid rgba(79, 70, 229, 0.1);
  color: var(--text-secondary);
}

.dfs-points {
  font-weight: 600;
  color: var(--accent-color);
}

.dfs-indicator {
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.dfs-indicator--standard {
  background: rgba(132, 204, 22, 0.2);
  color: var(--accent-color);
}

.dfs-indicator--varied {
  background: rgba(236, 72, 153, 0.2);
  color: #EC4899;
}

/* Strategies Section */
.dfs-strategies {
  background: var(--bg-primary);
}

.dfs-strategy-accordion {
  max-width: 900px;
  margin: 0 auto;
}

.dfs-accordion-item {
  margin-bottom: 1rem;
  background: var(--card-gradient);
  border-radius: 16px;
  border: 1px solid rgba(79, 70, 229, 0.2);
  overflow: hidden;
}

.dfs-accordion-header {
  width: 100%;
  padding: 1.5rem 2rem;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.dfs-accordion-header:hover {
  background: rgba(79, 70, 229, 0.1);
}

.dfs-accordion-icon {
  font-size: 1.5rem;
}

.dfs-accordion-header h3 {
  flex: 1;
  text-align: left;
  font-family: var(--font-heading);
}

.dfs-accordion-arrow {
  color: var(--accent-color);
  font-size: 1.2rem;
  transition: var(--transition-fast);
}

.dfs-accordion-item--active .dfs-accordion-arrow {
  transform: rotate(180deg);
}

.dfs-accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.dfs-strategy-content {
  padding: 0 2rem 2rem;
}

.dfs-skill-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.dfs-skill-label {
  min-width: 100px;
  font-weight: 600;
  color: var(--text-secondary);
}

.dfs-progress-bar {
  flex: 1;
  height: 8px;
  background: rgba(79, 70, 229, 0.2);
  border-radius: 4px;
  overflow: hidden;
}

.dfs-progress-fill {
  height: 100%;
  background: var(--primary-gradient);
  border-radius: 4px;
  transition: width 1s ease-out;
}

.dfs-tip-list {
  list-style: none;
  margin-top: 1rem;
}

.dfs-tip-list li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  position: relative;
  padding-left: 1.5rem;
}

.dfs-tip-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: 600;
}

.dfs-strategy-flowchart {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.dfs-flow-step {
  padding: 1rem 1.5rem;
  background: rgba(79, 70, 229, 0.2);
  border-radius: 25px;
  color: var(--text-primary);
  font-weight: 600;
  white-space: nowrap;
}

.dfs-flow-arrow {
  color: var(--accent-color);
  font-size: 1.5rem;
  font-weight: 600;
}

.dfs-tip-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.dfs-tip-card {
  padding: 1.5rem;
  background: rgba(15, 15, 35, 0.8);
  border-radius: 12px;
  border: 1px solid rgba(79, 70, 229, 0.3);
  text-align: center;
  transition: var(--transition-normal);
}

.dfs-tip-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-color);
}

.dfs-tip-card h4 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-family: var(--font-heading);
}

/* Quick Start Section */
.dfs-quick-start {
  background: var(--bg-secondary);
}

.dfs-progress-steps {
  max-width: 800px;
  margin: 0 auto;
}

.dfs-step-indicator {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 3rem;
}

.dfs-step {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  background: rgba(79, 70, 229, 0.2);
  color: var(--text-secondary);
  border: 2px solid rgba(79, 70, 229, 0.3);
  transition: var(--transition-normal);
}

.dfs-step--completed {
  background: var(--primary-gradient);
  color: white;
  border-color: transparent;
}

.dfs-step--active {
  background: var(--accent-color);
  color: var(--bg-primary);
  border-color: var(--accent-color);
  animation: dfs-pulse 2s infinite;
}

.dfs-tutorial-cards {
  max-width: 600px;
  margin: 0 auto;
}

.dfs-tutorial-card {
  padding: 3rem;
  background: var(--card-gradient);
  border-radius: 20px;
  border: 1px solid rgba(79, 70, 229, 0.2);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.dfs-tutorial-number {
  position: absolute;
  top: -10px;
  right: 2rem;
  font-size: 6rem;
  font-weight: 900;
  color: rgba(79, 70, 229, 0.1);
  font-family: var(--font-heading);
}

.dfs-tutorial-card h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.dfs-tutorial-card p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.dfs-checklist {
  text-align: left;
  margin-bottom: 2rem;
}

.dfs-checkbox {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  cursor: pointer;
  color: var(--text-secondary);
}

.dfs-checkbox input {
  display: none;
}

.dfs-checkbox-mark {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(79, 70, 229, 0.3);
  border-radius: 4px;
  position: relative;
  transition: var(--transition-fast);
}

.dfs-checkbox input:checked + .dfs-checkbox-mark {
  background: var(--primary-gradient);
  border-color: transparent;
}

.dfs-checkbox input:checked + .dfs-checkbox-mark::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-weight: 600;
  font-size: 0.8rem;
}

/* Footer */
.dfs-footer {
  background: var(--bg-primary);
  border-top: 1px solid rgba(79, 70, 229, 0.2);
  padding: 3rem 0 1rem;
}

.dfs-footer__content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.dfs-footer__brand h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dfs-footer__brand p {
  color: var(--text-secondary);
}

.dfs-footer__links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
}

.dfs-footer__section h4 {
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-family: var(--font-heading);
}

.dfs-footer__section ul {
  list-style: none;
}

.dfs-footer__section li {
  margin-bottom: 0.5rem;
}

.dfs-footer__section a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.dfs-footer__section a:hover {
  color: var(--accent-color);
}

.dfs-footer__bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(79, 70, 229, 0.1);
  color: var(--text-muted);
}

/* Animations */
@keyframes dfs-blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

@keyframes dfs-float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes dfs-particles {
  0% { transform: translateX(0); }
  100% { transform: translateX(-200px); }
}

@keyframes dfs-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes dfs-bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

@keyframes dfs-fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes dfs-slideIn {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes dfs-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .dfs-nav__menu {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 15, 35, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
  }
  
  .dfs-nav__menu--active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .dfs-menu-toggle {
    display: flex;
  }
  
  .dfs-hero__content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  
  .dfs-3d-container {
    width: 300px;
    height: 300px;
    margin: 0 auto;
  }
  
  .dfs-hero__cta {
    justify-content: center;
  }
  
  .dfs-btn {
    padding: 0.875rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .dfs-infographic {
    flex-direction: column;
  }
  
  .dfs-infographic__arrow {
    transform: rotate(90deg);
  }
  
  .dfs-comparison__content {
    grid-template-columns: 1fr;
  }
  
  .dfs-tabs__nav {
    flex-direction: column;
  }
  
  .dfs-sport-selector {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .dfs-step-indicator {
    gap: 1rem;
  }
  
  .dfs-step {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .dfs-footer__content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  :root {
    --section-padding: 4rem 0;
    --card-padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .dfs-container {
    padding: 0 1rem;
  }
  
  .dfs-hero__title {
    font-size: 2rem;
  }
  
  .dfs-hero__subtitle {
    font-size: 1.1rem;
  }
  
  .dfs-section__title {
    font-size: 1.75rem;
  }
  
  .dfs-btn {
    width: 100%;
    justify-content: center;
  }
  
  .dfs-hero__cta {
    flex-direction: column;
  }
  
  .dfs-sports-grid {
    grid-template-columns: 1fr;
  }
  
  .dfs-contest-types {
    grid-template-columns: 1fr;
  }
  
  .dfs-sport-selector {
    grid-template-columns: 1fr;
  }
  
  .dfs-strategy-flowchart {
    flex-direction: column;
  }
  
  .dfs-flow-arrow {
    transform: rotate(90deg);
  }
}

/* Print Styles */
@media print {
  .dfs-hero__particles,
  .dfs-floating-icon,
  .dfs-menu-toggle {
    display: none;
  }
  
  .dfs-section {
    opacity: 1;
    transform: none;
  }
  
  .dfs-btn {
    border: 2px solid #000;
    background: transparent !important;
    color: #000 !important;
  }
}

/* Dark Mode Enhancements */
@media (prefers-color-scheme: dark) {
  .dfs-hero__particles {
    opacity: 0.8;
  }
  
  .dfs-floating-icon {
    filter: drop-shadow(0 8px 16px rgba(79, 70, 229, 0.5));
  }
  
  .dfs-card-gradient {
    --card-gradient: linear-gradient(145deg, rgba(22, 33, 62, 0.95) 0%, rgba(26, 26, 46, 0.9) 100%);
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --text-secondary: #E2E8F0;
    --text-muted: #CBD5E1;
  }
  
  .dfs-btn--secondary {
    border-width: 3px;
  }
  
  .dfs-table {
    border-width: 2px;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .dfs-hero__particles {
    animation: none;
  }
  
  .dfs-floating-icon {
    animation: none;
  }
}