/* Base Styles & Variables */
:root {
  /* Colors - Light Theme */
  --primary: #FFD166;
  --secondary: #073B4C;
  --accent: #EF476F;
  --text: #2D3748;
  --background: #FFFFFF;
  --surface: #F7FAFC;
  --border: #E2E8F0;
  --shadow: rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  --line-height: 1.6;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  
  /* Transitions */
  --transition: all 0.3s ease;
}

/* Dark Theme */
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #FFD166;
    --secondary: #06D6A0;
    --accent: #EF476F;
    --text: #F7FAFC;
    --background: #1A202C;
    --surface: #2D3748;
    --border: #4A5568;
    --shadow: rgba(0, 0, 0, 0.3);
  }
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font-stack);
  line-height: var(--line-height);
  color: var(--text);
  background-color: var(--background);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  margin-bottom: 1rem;
  font-weight: 800;
  color: var(--text);
}

h1 {
  font-size: clamp(2.5rem, 8vw, 4rem);
}

h2 {
  font-size: clamp(2rem, 6vw, 3rem);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  display: inline-block;
  width: 100%;
}

h2::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--primary);
  margin: 1rem auto 0;
  border-radius: 2px;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

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

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

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

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

section {
  padding: var(--spacing-xl) 0;
  position: relative;
  overflow: hidden;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--background);
  box-shadow: 0 2px 10px var(--shadow);
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}

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

.logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
}

nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav li {
  margin-left: var(--spacing-md);
}

nav a {
  color: var(--text);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

nav a:hover::after,
nav a:focus::after {
  width: 100%;
}

.insta-link {
  font-size: 1.25rem;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.insta-link:hover,
.insta-link:focus {
  transform: scale(1.2);
}

.insta-link::after {
  display: none;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  text-align: center;
  padding-top: 5rem;
  background: linear-gradient(135deg, rgba(255, 209, 102, 0.1) 0%, rgba(7, 59, 76, 0.1) 100%);
  position: relative;
  overflow: hidden;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.answer {
  font-size: clamp(4rem, 15vw, 10rem);
  font-weight: 900;
  color: var(--primary);
  margin: 0 0 var(--spacing-lg);
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  animation: bounce 2s infinite alternate;
  position: relative;
  z-index: 1;
}

@keyframes bounce {
  from {
    transform: translateY(0) scale(1);
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
  to {
    transform: translateY(-10px) scale(1.05);
    text-shadow: 0 8px 24px rgba(255, 209, 102, 0.3);
  }
}

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

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-lg);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  font-size: 1.125rem;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--secondary);
  box-shadow: 0 4px 12px rgba(255, 209, 102, 0.3);
}

.btn-primary:hover,
.btn-primary:focus {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 209, 102, 0.4);
  color: var(--secondary);
}

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

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: var(--primary);
  color: var(--secondary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 209, 102, 0.3);
}

.btn-disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background-color: var(--surface);
  color: var(--text);
  border: none;
}

.disclaimer {
  font-size: 0.875rem;
  opacity: 0.8;
  margin-top: var(--spacing-md);
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.card {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px var(--shadow);
}

.emoji {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  display: inline-block;
}

/* Variants */
.variants {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.variant {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.variant:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px var(--shadow);
}

/* Rules */
.rules {
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
  counter-reset: rule;
  list-style: none;
  padding: 0;
}

.rules li {
  counter-increment: rule;
  position: relative;
  padding: var(--spacing-sm) 0 var(--spacing-sm) 3rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}

.rules li::before {
  content: counter(rule);
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 2rem;
  height: 2rem;
  background: var(--primary);
  color: var(--secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.875rem;
}

.badge {
  display: block;
  background: var(--accent);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: var(--spacing-md);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

/* Merch */
.merch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.merch-item {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.merch-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px var(--shadow);
}

.merch-placeholder {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 120px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
}

/* FAQ */
.faq {
  max-width: 800px;
  margin: 0 auto;
}

details {
  background: var(--surface);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}

details[open] {
  box-shadow: 0 5px 15px var(--shadow);
}

summary {
  padding: var(--spacing-md);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 3rem;
  transition: var(--transition);
}

summary:hover {
  background: rgba(255, 255, 255, 0.05);
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: normal;
  color: var(--primary);
  transition: var(--transition);
}

details[open] > summary::after {
  content: '-';
}

details > div {
  padding: 0 var(--spacing-md) var(--spacing-md);
  margin-top: calc(-1 * var(--spacing-sm));
  opacity: 0.9;
  border-top: 1px solid var(--border);
}

/* Footer */
.footer {
  background: var(--surface);
  padding: var(--spacing-lg) 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

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

.footer nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
  margin: var(--spacing-md) 0;
  flex-wrap: wrap;
}

.footer nav li {
  margin: 0 var(--spacing-sm);
}

.footer a[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  text-decoration: line-through;
}

.microcopy {
  font-size: 0.875rem;
  opacity: 0.7;
  margin-top: var(--spacing-md);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .header .container {
    flex-direction: column;
    text-align: center;
  }
  
  nav ul {
    margin-top: var(--spacing-sm);
  }
  
  nav li {
    margin: 0 var(--spacing-xs);
  }
  
  .cta-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .btn {
    width: 100%;
  }
  
  section {
    padding: var(--spacing-lg) 0;
  }
  
  .footer nav ul {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .footer nav li {
    margin: 0;
  }
}

/* Print Styles */
@media print {
  .header,
  .hero,
  #waarom,
  #varianten,
  #merch,
  #faq,
  .footer {
    display: none;
  }
  
  #huisregels {
    padding: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  #huisregels .container {
    text-align: center;
  }
  
  #huisregels h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
  }
  
  .rules {
    text-align: left;
    margin: 0 auto;
  }
  
  .badge {
    display: none;
  }
  
  @page {
    margin: 2cm;
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Apply animations */
section > .container > * {
  animation: fadeIn 0.6s ease-out forwards;
}

/* Accessibility */
:focus {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: var(--secondary);
  padding: 0.5rem 1rem;
  z-index: 1001;
  transition: top 0.3s;
}

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

/* No JS fallback */
.no-js .answer {
  animation: none;
}