/* ===================================
   CSS RESET
   Ensures consistent rendering across all browsers
   =================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  -webkit-overflow-scrolling: touch;
  overflow-x: hidden;
  overflow-y: auto;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Remove default list styles */
ul,
ol {
  list-style: none;
}

/* ===================================
   CSS VARIABLES
   Centralized design tokens for consistent styling
   =================================== */
:root {
  /* Color Palette - Day theme (default) */
  --color-bg: #ffffff;
  --color-text: #000000;
  --color-border: #000000;
  --color-error: #cc0000;
  
  /* Legacy support */
  --color-black: #000000;
  --color-white: #ffffff;
  
  /* Typography - Arcade and indie-inspired fonts with fallbacks */
  --font-arcade: 'Press Start 2P', 'Courier New', 'Courier', monospace;
  --font-indie: 'VT323', 'Courier New', 'Courier', monospace;
  --font-body: 'Lexend', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Layout Dimensions */
  --header-height-desktop: 70px;
  --header-height-mobile: 55px;
  --logo-size-desktop: 35px;
  --logo-size-mobile: 28px;
  --max-width-content: 1200px;
  --max-width-form: 600px;
  
  /* Spacing Scale */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 20px;
  --spacing-lg: 35px;
  --spacing-xl: 50px;
  --spacing-xxl: 70px;
  
  /* Border and Effects */
  --border-width: 2px;
  --border-style: solid;
  --focus-outline-width: 3px;
  --focus-outline-offset: 2px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* Night theme colors */
body.night-theme {
  --color-bg: #0a1929;
  --color-text: #e3f2fd;
  --color-border: #64b5f6;
}

/* ===================================
   TYPOGRAPHY
   Base typography settings with elegant spacing
   =================================== */
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  font-weight: 300;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.3;
  font-weight: normal;
}

p {
  margin-bottom: 1em;
}

p:last-child {
  margin-bottom: 0;
}

/* ===================================
   LAYOUT
   Main layout structure with xkcd + arcade aesthetic
   =================================== */
/* Add subtle hand-drawn feel to borders (xkcd-inspired) */
.product-card,
.cta-button,
.platform-button,
header {
  position: relative;
}

/* Slightly irregular borders for xkcd feel - subtle enough to be elegant */
.product-card::before,
.cta-button::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  pointer-events: none;
}

/* ===================================
   ACCESSIBILITY - FOCUS INDICATORS
   Visible focus states for keyboard navigation
   =================================== */
*:focus {
  outline: var(--focus-outline-width) solid var(--color-black);
  outline-offset: var(--focus-outline-offset);
}

*:focus:not(:focus-visible) {
  outline: none;
}

*:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-black);
  outline-offset: var(--focus-outline-offset);
}

/* ===================================
   HEADER COMPONENT
   Fixed navigation bar with logo and company name
   =================================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height-desktop);
  background-color: var(--color-bg);
  border-bottom: var(--border-width) var(--border-style) var(--color-bg);
  z-index: 1000;
  transition: background-color var(--transition-normal);
}

.header-container {
  max-width: var(--max-width-content);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  position: relative;
}

.logo {
  width: var(--logo-size-desktop);
  height: var(--logo-size-desktop);
  display: block;
  transition: filter var(--transition-normal);
}

/* Invert logo color in night theme */
body.night-theme .logo {
  filter: invert(1) brightness(1.2);
}

.company-name {
  font-family: var(--font-arcade);
  font-size: 1.2rem;
  font-weight: normal;
  color: var(--color-text);
  transition: color var(--transition-normal);
}

.theme-toggle {
  position: absolute;
  right: var(--spacing-md);
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.theme-toggle:hover {
  transform: scale(1.1);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-icon {
  width: 24px;
  height: 24px;
  color: var(--color-text);
  transition: color var(--transition-normal), filter var(--transition-normal);
}

/* Make sun icon white in night theme */
body.night-theme .theme-icon {
  filter: invert(1) brightness(1.2);
}

/* ===================================
   HERO SECTION
   Primary landing area with tagline and call-to-action
   =================================== */
.hero {
  width: 100%;
  min-height: calc(100vh - var(--header-height-desktop));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-height-desktop) + 15px) var(--spacing-md) 15px;
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: 650px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-decoration {
  position: absolute;
  width: 120px;
  height: 120px;
  opacity: 0.08;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  pointer-events: none;
  transition: filter var(--transition-normal);
}

/* Invert hero decoration in night theme */
body.night-theme .hero-decoration {
  filter: invert(1) brightness(1.2);
}

.hero-tagline {
  font-family: var(--font-arcade);
  font-size: 2rem;
  font-weight: normal;
  line-height: 1.3;
  margin-bottom: 18px;
  text-shadow: 3px 3px 0px rgba(0, 0, 0, 0.1);
}

.hero-description {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 300;
  line-height: 1.55;
  margin-bottom: 18px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  font-family: var(--font-arcade);
  font-size: 1rem;
  padding: 16px 32px;
  background-color: var(--color-white);
  color: var(--color-black);
  border: var(--border-width) var(--border-style) var(--color-black);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-transform: none;
}

.cta-button:hover {
  background-color: var(--color-black);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 4px 4px 0px rgba(0, 0, 0, 0.3);
}

.cta-button:active {
  transform: translateY(0);
  box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.3);
}

.cta-button:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-black);
  outline-offset: 4px;
}

/* ===================================
   PRODUCTS SECTION
   Showcase grid of apps and games with hover effects
   =================================== */
.products {
  width: 100%;
  padding: 40px var(--spacing-md) 200px;
  min-height: 70vh;
  display: flex;
  align-items: center;
}

.products-container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  width: 100%;
}

.section-heading {
  font-family: var(--font-arcade);
  font-size: 1.5rem;
  font-weight: normal;
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.coming-soon {
  font-family: var(--font-indie);
  font-size: 1.5rem;
  text-align: center;
  color: var(--color-text);
  opacity: 0.6;
  margin-top: 160px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.product-card {
  background-color: var(--color-white);
  border: var(--border-width) var(--border-style) var(--color-black);
  padding: 30px;
  text-align: center;
  transition: all var(--transition-normal);
}

.product-card:focus-within {
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
  transform: translateY(-5px);
}

.product-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  display: block;
}

.product-title {
  font-family: var(--font-arcade);
  font-size: 1.2rem;
  font-weight: normal;
  margin-bottom: 15px;
}

.product-description {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.platform-buttons {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.platform-button {
  font-family: var(--font-body);
  font-size: 0.8rem;
  padding: var(--spacing-xs) 16px;
  background-color: var(--color-white);
  color: var(--color-black);
  border: var(--border-width) var(--border-style) var(--color-black);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  display: inline-block;
}

.platform-button:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

.platform-button:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-black);
  outline-offset: var(--focus-outline-offset);
}

/* ===================================
   ABOUT SECTION
   Company mission and platform support information
   =================================== */
.about {
  width: 100%;
  padding: var(--spacing-xxl) var(--spacing-md);
  background-color: var(--color-white);
}

.about-container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  text-align: center;
}

.about-description {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 300;
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
}

.platform-icons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 22px;
  margin-top: 18px;
}

.platform-icon {
  width: 45px;
  height: 45px;
  display: block;
  transition: transform var(--transition-fast), filter var(--transition-normal);
}

.platform-icon:hover {
  transform: translateY(-3px);
}

/* Invert platform icons in night theme */
body.night-theme .platform-icon {
  filter: invert(1) brightness(1.2);
}

.hero-email {
  font-family: var(--font-indie);
  font-size: 1rem;
  font-weight: 300;
  color: var(--color-text);
  text-decoration: none;
  margin-top: 28px;
  display: inline-block;
  transition: color var(--transition-normal), opacity var(--transition-fast);
}

.hero-email:hover {
  opacity: 0.7;
  text-decoration: underline;
}

.hero-email:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-text);
  outline-offset: var(--focus-outline-offset);
}

/* ===================================
   CONTACT SECTION
   Form for user inquiries with validation
   =================================== */
.contact {
  width: 100%;
  padding: var(--spacing-xxl) var(--spacing-md);
}

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

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-form label {
  font-family: var(--font-body);
  font-size: 1rem;
  margin-bottom: -15px;
  display: block;
}

.contact-form input,
.contact-form textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: var(--spacing-sm);
  border: var(--border-width) var(--border-style) var(--color-black);
  background-color: var(--color-white);
  color: var(--color-black);
  width: 100%;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  box-shadow: 0 0 0 var(--border-width) var(--color-black);
}

.contact-form input:focus-visible,
.contact-form textarea:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-black);
  outline-offset: var(--focus-outline-offset);
}

.contact-form textarea {
  min-height: 150px;
  resize: vertical;
}

.submit-button {
  font-family: var(--font-arcade);
  font-size: 1rem;
  padding: 16px 32px;
  background-color: var(--color-black);
  color: var(--color-white);
  border: var(--border-width) var(--border-style) var(--color-black);
  cursor: pointer;
  transition: all var(--transition-normal);
  align-self: flex-start;
}

.submit-button:hover {
  background-color: var(--color-white);
  color: var(--color-black);
  transform: translateY(-2px);
  box-shadow: 4px 4px 0px rgba(0, 0, 0, 0.3);
}

.submit-button:active {
  transform: translateY(0);
  box-shadow: 2px 2px 0px rgba(0, 0, 0, 0.3);
}

.submit-button:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-white);
  outline-offset: var(--focus-outline-offset);
}

.error-message {
  font-family: var(--font-indie);
  font-size: 1rem;
  color: var(--color-error);
  display: none;
  margin-top: -10px;
}

.error-message.show {
  display: block;
}

/* ===================================
   FOOTER COMPONENT
   Site footer with copyright - clean white styling
   =================================== */
footer {
  width: 100%;
  color: var(--color-text);
  background-color: var(--color-bg);
  border-top: var(--border-width) var(--border-style) var(--color-bg);
  padding: var(--spacing-md) var(--spacing-md);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

.copyright {
  font-family: var(--font-indie);
  font-size: 0.9rem;
  color: var(--color-text);
  transition: color var(--transition-normal);
}

.footer-email {
  font-family: var(--font-indie);
  font-size: 1rem;
  font-weight: 300;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-normal), opacity var(--transition-fast);
}

.footer-email:hover {
  opacity: 0.7;
  text-decoration: underline;
}

.footer-email:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-text);
  outline-offset: var(--focus-outline-offset);
}

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

.social-links a {
  display: inline-block;
  transition: opacity var(--transition-normal);
}

.social-links a:hover {
  opacity: 0.7;
}

.social-links a:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-black);
  outline-offset: var(--focus-outline-offset);
}

.social-icon {
  width: 30px;
  height: 30px;
  display: block;
}

.privacy-link {
  font-family: var(--font-indie);
  font-size: 0.9rem;
  color: var(--color-black);
  text-decoration: none;
  transition: text-decoration var(--transition-normal);
}

.privacy-link:hover {
  text-decoration: underline;
}

.privacy-link:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-black);
  outline-offset: var(--focus-outline-offset);
}

/* ===================================
   UTILITIES
   Helper classes for common patterns
   =================================== */
.visually-hidden {
  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-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-md);
  text-decoration: none;
  z-index: 100;
}

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

/* ===================================
   MEDIA QUERIES - TABLET
   Responsive adaptations for tablets (768px - 1024px)
   =================================== */
@media (min-width: 768px) and (max-width: 1024px) {
  /* Hero Section - Adjusted for tablet */
  .hero-tagline {
    font-size: 2rem;
    line-height: 1.4;
  }
  
  .hero-description {
    font-size: 1.1rem;
    max-width: 700px;
  }
  
  /* Products Section - Maintain 2-column grid */
  .products-grid {
    gap: 30px;
  }
  
  .product-card {
    padding: 25px;
  }
  
  /* About Section - Adjusted spacing */
  .about-description {
    font-size: 1rem;
    max-width: 700px;
  }
  
  .platform-icons {
    gap: 22px;
  }
  
  .platform-icon {
    width: 45px;
    height: 45px;
  }
  
  /* Footer - Maintain horizontal layout */
  .footer-container {
    padding: 0 30px;
  }
}

/* ===================================
   MEDIA QUERIES - MOBILE
   Responsive adaptations for screens < 768px
   =================================== */
@media (max-width: 767px) {
  /* ===================================
     MOBILE LAYOUT ADJUSTMENTS
     =================================== */
  
  /* Header - Reduced height and logo size */
  header {
    height: var(--header-height-mobile);
  }
  
  .logo {
    width: var(--logo-size-mobile);
    height: var(--logo-size-mobile);
  }
  
  .company-name {
    font-size: 0.8rem;
  }
  
  /* Hero Section - Smaller typography and spacing */
  .hero {
    padding: calc(var(--header-height-mobile) + 12px) 18px 12px;
    min-height: calc(100vh - var(--header-height-mobile));
  }
  
  .hero-container {
    max-width: 100%;
  }
  
  .hero-decoration {
    width: 70px;
    height: 70px;
    opacity: 0.05;
  }
  
  .hero-tagline {
    font-size: 1.25rem;
    line-height: 1.35;
    margin-bottom: 12px;
  }
  
  .hero-description {
    font-size: 0.92rem;
    line-height: 1.5;
    margin-bottom: 12px;
  }
  
  .cta-button {
    font-size: 0.8rem;
    padding: 14px 24px;
    min-height: 44px; /* Touch target minimum */
  }
  
  /* Products Section - Single column grid layout */
  .products {
    padding: 40px 20px;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .product-card {
    padding: 20px;
  }
  
  .product-title {
    font-size: 1rem;
  }
  
  .product-description {
    font-size: 0.85rem;
  }
  
  .platform-buttons {
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .platform-button {
    font-size: 0.7rem;
    padding: 8px 12px;
    min-height: 44px; /* Touch target minimum */
    min-width: 44px;
  }
  
  /* About Section - Vertical icon stacking */
  .about {
    padding: 40px 20px;
  }
  
  .about-container {
    text-align: center;
  }
  
  .about-description {
    font-size: 0.95rem;
    max-width: 100%;
  }
  
  .platform-icons {
    flex-direction: row;
    align-items: center;
    gap: 18px;
    margin-top: 12px;
  }
  
  .platform-icon {
    width: 38px;
    height: 38px;
  }
  
  .section-heading {
    font-size: 0.8rem;
  }
  
  /* Contact Section - Full-width form with larger touch targets */
  .contact {
    padding: 40px 20px;
  }
  
  .contact-form {
    width: 100%;
  }
  
  .contact-form input,
  .contact-form textarea {
    font-size: 1rem;
    padding: 12px;
    min-height: 44px; /* Touch target minimum */
  }
  
  .contact-form textarea {
    min-height: 120px;
  }
  
  .submit-button {
    font-size: 0.8rem;
    padding: 14px 24px;
    min-height: 44px; /* Touch target minimum */
    width: 100%;
  }
  
  .error-message {
    font-size: 0.85rem;
  }
  
  /* Footer - Vertical stacking for mobile */
  .footer-container {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }
  
  .social-links {
    gap: 30px;
  }
  
  .social-icon {
    width: 44px; /* Touch target minimum */
    height: 44px;
  }
  
  .privacy-link {
    font-size: 0.85rem;
    display: inline-block;
    min-height: 44px; /* Touch target minimum */
    line-height: 44px;
  }
}

/* ===================================
   MEDIA QUERIES - SMALL MOBILE
   Extra small screens (320px - 374px)
   =================================== */
@media (max-width: 374px) {
  .hero-tagline {
    font-size: 1.2rem;
  }
  
  .company-name {
    font-size: 0.7rem;
  }
  
  .section-heading {
    font-size: 0.7rem;
  }
}

/* ===================================
   MEDIA QUERIES - LARGE DESKTOP
   Wide screens (1920px+) with expanded max-width
   =================================== */
@media (min-width: 1920px) {
  .hero-container,
  .products-container,
  .about-container,
  .contact-container,
  .footer-container {
    max-width: 1400px;
  }
}