/* ==========================================================================
   pyk.ee Homepage Styles
   Portal/Aperture Science Terminal Aesthetic
   ========================================================================== */

/* --------------------------------------------------------------------------
   Font Faces - Self-hosted JetBrains Mono
   -------------------------------------------------------------------------- */

@font-face {
  font-family: 'JetBrains Mono';
  src: url('/fonts/JetBrainsMono/JetBrainsMono-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'JetBrains Mono';
  src: url('/fonts/JetBrainsMono/JetBrainsMono-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   CSS Custom Properties - Portal/Aperture Palette
   -------------------------------------------------------------------------- */

:root {
  /* Colours */
  --color-amber: #FF9900;
  --color-amber-light: #FFB000;
  --color-amber-dim: rgba(255, 153, 0, 0.6);
  --color-bg: #000000;
  --color-bg-elevated: #0a0a0a;

  /* Typography */
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-hero: 2.5rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;

  /* Layout */
  --max-width: 60rem;
  --nav-height: 3.5rem;

  /* Animation */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
}

/* --------------------------------------------------------------------------
   Base Reset and Typography
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-mono);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-amber);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* CRT Scanlines Effect - US2 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.1) 2px,
    rgba(0, 0, 0, 0.1) 4px
  );
  pointer-events: none;
  z-index: 1000;
}

/* Ambient Glow Effect - US2 */
body::after {
  content: '';
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 150%;
  height: 150%;
  background: radial-gradient(
    ellipse at center,
    rgba(255, 153, 0, 0.03) 0%,
    transparent 50%
  );
  pointer-events: none;
  z-index: -1;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */

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

h1 {
  font-size: var(--font-size-hero);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

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

a {
  color: var(--color-amber);
  text-decoration: none;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

a:hover {
  color: var(--color-amber-light);
  text-shadow: 0 0 8px var(--color-amber-dim);
}

a:focus {
  outline: 2px solid var(--color-amber);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Layout Containers
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* --------------------------------------------------------------------------
   Accessibility - Skip Link
   -------------------------------------------------------------------------- */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-amber);
  color: var(--color-bg);
  z-index: 1000;
}

.skip-link:focus {
  top: var(--space-md);
}

/* --------------------------------------------------------------------------
   Reduced Motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* --------------------------------------------------------------------------
   Navigation - US3
   -------------------------------------------------------------------------- */

.site-header {
  position: relative;
  z-index: 10;
}

.main-nav {
  display: flex;
  justify-content: center;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-amber-dim);
}

.nav-list {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: var(--font-size-sm);
  color: var(--color-amber);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-xs) var(--space-sm);
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-amber-light);
  text-shadow: 0 0 12px var(--color-amber-dim), 0 0 24px var(--color-amber-dim);
}

.nav-link:focus {
  outline: 2px solid var(--color-amber);
  outline-offset: 4px;
}

.nav-link[aria-current="page"] {
  color: var(--color-amber-light);
  border-bottom: 2px solid var(--color-amber);
}

/* --------------------------------------------------------------------------
   Hero Section - US1 First Impression
   -------------------------------------------------------------------------- */

.main-content {
  position: relative;
  z-index: 1;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--nav-height));
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: var(--max-width);
}

.logo {
  margin-bottom: var(--space-lg);
  display: flex;
  justify-content: center;
}

.mascot {
  width: 144px;
  height: 96px;
  filter: drop-shadow(0 0 20px var(--color-amber-dim));
  cursor: pointer;
  transition: filter var(--transition-normal);
}

.mascot:hover {
  filter: drop-shadow(0 0 30px var(--color-amber-dim));
}

/* Wiggle animation for click interaction */
.mascot.wiggle {
  animation: wiggle 0.4s ease-in-out;
}

@keyframes wiggle {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  20% { transform: translate(-2px, 0) rotate(-3deg); }
  40% { transform: translate(2px, 0) rotate(3deg); }
  60% { transform: translate(-2px, 0) rotate(-3deg); }
  80% { transform: translate(2px, 0) rotate(3deg); }
}

/* Crisp pixel art rendering */
.mascot {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.hero-name {
  font-size: var(--font-size-hero);
  font-weight: 700;
  color: var(--color-amber-light);
  margin-bottom: var(--space-sm);
  text-shadow: 0 0 20px var(--color-amber-dim);
}

.hero-descriptor {
  font-size: var(--font-size-lg);
  color: var(--color-amber);
  margin-bottom: var(--space-lg);
  opacity: 0.9;
}

.hero-ctas {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Scroll Indicators (Hero down + Footer up)
   -------------------------------------------------------------------------- */

.scroll-indicator,
.scroll-down-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-lg);
  opacity: 0.6;
  transition: opacity var(--transition-fast);
  cursor: pointer;
}

.scroll-indicator:hover,
.scroll-down-indicator:hover {
  opacity: 1;
}

.scroll-text {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-amber);
}

.scroll-chevron {
  font-size: var(--font-size-lg);
  color: var(--color-amber);
}

/* Hero scroll-down indicator - positioned at bottom of hero */
.scroll-down-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
}

.scroll-down-indicator .scroll-chevron {
  animation: bounce-down 2s ease-in-out infinite;
}

/* Footer scroll-up indicator */
.scroll-indicator .scroll-chevron {
  animation: bounce-up 2s ease-in-out infinite;
}

@keyframes bounce-down {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(6px);
  }
  60% {
    transform: translateY(3px);
  }
}

@keyframes bounce-up {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-6px);
  }
  60% {
    transform: translateY(-3px);
  }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-xl) var(--space-lg);
  border-top: 1px solid var(--color-amber-dim);
  margin-top: auto;
}

/* --------------------------------------------------------------------------
   Portal Quote Footer
   -------------------------------------------------------------------------- */

.portal-quote {
  font-style: italic;
  font-size: var(--font-size-sm);
  color: var(--color-amber-dim);
  opacity: 0;
  animation: fadeSlideUp 0.4s ease-out forwards;
  animation-delay: 1.2s;
  text-align: center;
  max-width: 30rem;
  margin-bottom: var(--space-md);
}

.portal-quote-text::before {
  content: '"';
}

.portal-quote-text::after {
  content: '"';
}

.portal-attribution {
  display: block;
  margin-top: var(--space-xs);
  font-style: normal;
  font-size: var(--font-size-sm);
  opacity: 0.6;
}

@keyframes fadeSlideUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   Command-Prompt CTAs - US4/US5
   -------------------------------------------------------------------------- */

.cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--font-size-base);
  color: var(--color-amber);
  text-decoration: none;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-amber-dim);
  background: rgba(255, 153, 0, 0.05);
  min-height: 44px;
  min-width: 44px;
  transition: all var(--transition-fast);
}

.cta:hover {
  background: rgba(255, 153, 0, 0.1);
  border-color: var(--color-amber);
  text-shadow: 0 0 8px var(--color-amber-dim);
  box-shadow: 0 0 20px rgba(255, 153, 0, 0.2), inset 0 0 20px rgba(255, 153, 0, 0.05);
}

.cta:focus {
  outline: 2px solid var(--color-amber);
  outline-offset: 4px;
}

.cta-prompt {
  color: var(--color-amber-light);
  font-weight: 700;
}

.cta-text {
  transition: text-decoration var(--transition-fast);
}

.cta:hover .cta-text {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.cta-cursor {
  animation: blink 1s step-end infinite;
  color: var(--color-amber-light);
}

.cta-primary {
  border-width: 2px;
}

.cta-secondary {
  opacity: 0.8;
  border-style: dashed;
}

.cta-secondary:hover {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   What I Do Section - US6
   -------------------------------------------------------------------------- */

.what-i-do {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-amber-dim);
}

.section-title {
  font-size: var(--font-size-xl);
  color: var(--color-amber-light);
  margin-bottom: var(--space-lg);
  font-weight: 400;
}

.interests {
  max-width: 40rem;
}

.interests p {
  color: var(--color-amber);
  opacity: 0.9;
  margin-bottom: var(--space-md);
}

.interests strong {
  color: var(--color-amber-light);
  font-weight: 700;
}

.links {
  margin-top: var(--space-lg);
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-base);
  color: var(--color-amber);
  text-decoration: none;
  padding: var(--space-xs) 0;
  transition: all var(--transition-fast);
}

.github-link:hover {
  color: var(--color-amber-light);
  text-shadow: 0 0 8px var(--color-amber-dim);
}

.github-link:hover span {
  transform: translateX(4px);
}

.github-link span {
  transition: transform var(--transition-fast);
}

/* --------------------------------------------------------------------------
   Particle Canvas - US2
   -------------------------------------------------------------------------- */

#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* --------------------------------------------------------------------------
   Responsive - Mobile Breakpoint (max-width: 767px)
   -------------------------------------------------------------------------- */

@media (max-width: 767px) {
  :root {
    --font-size-hero: 1.75rem;
    --font-size-2xl: 1.5rem;
    --font-size-xl: 1.25rem;
    --space-xl: 2rem;
    --space-lg: 1rem;
  }

  .nav-list {
    gap: var(--space-md);
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-link {
    font-size: 0.75rem;
    padding: var(--space-sm);
  }

  .hero {
    padding: var(--space-lg);
    min-height: calc(100vh - 4rem);
  }

  .logo {
    font-size: 0.4rem;
    overflow-x: auto;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }

  .cta {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .what-i-do {
    padding: var(--space-lg) 0;
  }

  .container {
    padding: 0 var(--space-md);
  }
}

/* Extra small screens - prevent horizontal scroll */
@media (max-width: 320px) {
  .logo {
    font-size: 0.3rem;
  }

  .nav-list {
    gap: var(--space-sm);
  }

  .nav-link {
    font-size: 0.65rem;
    letter-spacing: 0.05em;
  }
}