/* Fusion Fun Labs - Global Styles */

:root {
  --color-bg: #ffffff;
  --color-surface: #f5f5f5;
  --color-text: #1a1a1a;
  --color-text-muted: #666666;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-border: #e5e5e5;
  --color-accent: #0ea5e9;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --border-radius: 0.5rem;
  --max-width: 1200px;
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f172a;
    --color-surface: #1e293b;
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-border: #334155;
    --color-accent: #38bdf8;
  }
}

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

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

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

main {
  flex: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Header & Navigation */
.header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
}

.logo-img {
  height: 32px;
  width: auto;
}

.nav {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.nav a {
  font-weight: 500;
  white-space: nowrap;
}

.nav a[aria-current="page"] {
  color: var(--color-text);
  text-decoration: underline;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-md);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg) 100%);
}

.hero-container {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--spacing-md);
}

.hero-tagline {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
}

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

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  font-size: 1rem;
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

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

/* Container & Sections */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.section {
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.card h3 {
  color: var(--color-primary);
}

.card-link {
  display: block;
  margin-top: var(--spacing-md);
  font-weight: 600;
}

/* Game Page Specific */
.game-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: white;
  padding: var(--spacing-2xl) var(--spacing-md);
  text-align: center;
}

.game-header h1 {
  color: white;
}

.game-header p {
  font-size: 1.25rem;
  opacity: 0.95;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.features {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.features li {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--color-primary);
}

.features li::before {
  content: "✓ ";
  color: var(--color-success);
  font-weight: bold;
  margin-right: var(--spacing-xs);
}

.screenshot-placeholder {
  background-color: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-2xl);
  text-align: center;
  color: var(--color-text-muted);
  margin: var(--spacing-lg) 0;
}

/* Support Page */
.contact-info {
  background-color: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  margin: var(--spacing-lg) 0;
  text-align: center;
}

.contact-info a {
  font-size: 1.25rem;
  font-weight: 600;
}

.faq {
  margin-top: var(--spacing-xl);
}

.faq-item {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
}

.faq-item h3 {
  color: var(--color-primary);
  font-size: 1.1rem;
}

/* Legal Pages */
.legal-container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.todo-box {
  background-color: var(--color-warning);
  color: #000;
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-xl);
  border: 2px solid #d97706;
}

.todo-box strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
}

.legal-section {
  margin-bottom: var(--spacing-xl);
}

.legal-section h2 {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-md);
  border-top: 2px solid var(--color-border);
}

.legal-section h3 {
  margin-top: var(--spacing-lg);
  color: var(--color-primary);
}

.legal-section ul,
.legal-section ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.legal-section li {
  margin-bottom: var(--spacing-xs);
}

/* Footer */
.footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xl) var(--spacing-md);
  margin-top: auto;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  text-align: center;
}

.footer-brand {
  font-weight: 700;
  font-size: 1.1rem;
}

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

.footer-links a {
  font-size: 0.9rem;
}

.footer-copyright {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .header-container {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .nav {
    gap: var(--spacing-sm);
    font-size: 0.9rem;
  }

  .hero {
    padding: var(--spacing-xl) var(--spacing-md);
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .features {
    grid-template-columns: 1fr;
  }
}

/* Accessibility */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

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

/* Print Styles */
@media print {
  .header,
  .footer,
  .hero-cta,
  .btn {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }
}