/* ==========================================
   ALAN PRATES PORTFOLIO - Modern Design System
   ========================================== */

/* CSS Variables - Design Tokens */
:root {
  /* Colors - Light Mode */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.7);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --border-color: rgba(148, 163, 184, 0.2);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-glass: rgba(30, 41, 59, 0.8);
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-color: rgba(148, 163, 184, 0.1);
  --shadow-glow: 0 0 60px rgba(139, 92, 246, 0.4);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
  transition: background var(--transition-base), color var(--transition-base);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

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

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) 0;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

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

.header__logo {
  height: 48px;
  transition: transform var(--transition-base);
}

.header__logo:hover {
  transform: scale(1.05);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header__link {
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.header__link:hover {
  color: var(--accent-primary);
  background: var(--bg-glass);
}

/* Theme Toggle */
.theme-toggle {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
}

.theme-toggle:hover {
  background: var(--accent-gradient);
  color: white;
  transform: rotate(15deg);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: var(--accent-gradient);
  opacity: 0.1;
  border-radius: 50%;
  filter: blur(100px);
  animation: pulse 8s ease-in-out infinite;
}

.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero__text {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--text-secondary);
  width: fit-content;
  backdrop-filter: blur(10px);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
}

.hero__title {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 500px;
}

.hero__image-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero__image {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-secondary);
  box-shadow: var(--shadow-glow);
  animation: float 6s ease-in-out infinite;
  position: relative;
  z-index: 2;
}

.hero__image-ring {
  position: absolute;
  width: 360px;
  height: 360px;
  border: 2px dashed var(--accent-primary);
  border-radius: 50%;
  opacity: 0.3;
  animation: spin 20s linear infinite;
}

/* Horizontal Connecting Line - Synced with Chase */
.connecting-line {
  position: absolute;
  left: 0;
  bottom: 12%;
  width: 100%;
  height: 2px;
  background: linear-gradient(to right,
      transparent 0%,
      var(--accent-primary) 20%,
      var(--accent-secondary) 50%,
      var(--accent-primary) 80%,
      transparent 100%);
  opacity: 0.4;
  z-index: 1;
}

.connecting-line::after {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateX(-150px) translateY(-50%);
  width: 150px;
  height: 4px;
  background: linear-gradient(to right,
      transparent,
      var(--accent-primary),
      var(--accent-secondary),
      var(--accent-primary),
      transparent);
  border-radius: 2px;
  box-shadow: 0 0 20px var(--accent-primary), 0 0 40px var(--accent-secondary);
  animation: lineSlide 15s linear infinite;
}

/* Dark mode adjustments */
[data-theme="dark"] .connecting-line {
  opacity: 0.6;
}

[data-theme="dark"] .connecting-line::after {
  box-shadow: 0 0 30px var(--accent-primary), 0 0 60px var(--accent-secondary);
}

@keyframes lineSlide {
  0% {
    transform: translateX(-150px) translateY(-50%);
  }

  100% {
    transform: translateX(calc(100vw + 150px)) translateY(-50%);
  }
}

/* ==========================================
   RUNNING CHASE - CSS Drawn Version
   ========================================== */
.chase-runner {
  position: absolute;
  bottom: 15%;
  left: 0;
  display: flex;
  flex-direction: row-reverse;
  align-items: flex-end;
  gap: 15px;
  animation: chaseRun 15s linear infinite;
  z-index: 10;
  pointer-events: none;
}

/* ==========================================
   PREY - Running Dev
   ========================================== */
.prey {
  position: relative;
  width: 25px;
  height: 40px;
  animation: preyBounce 0.3s ease-in-out infinite;
}

.prey__head {
  position: absolute;
  width: 16px;
  height: 16px;
  background: #fbbf24;
  border-radius: 50%;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.prey__head::before {
  /* Face */
  content: '';
  position: absolute;
  width: 4px;
  height: 4px;
  background: #1f2937;
  border-radius: 50%;
  top: 5px;
  right: 3px;
}

.prey__body {
  position: absolute;
  width: 14px;
  height: 16px;
  background: #3b82f6;
  border-radius: 4px 4px 2px 2px;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
}

.prey__leg {
  position: absolute;
  width: 5px;
  height: 12px;
  background: #1e40af;
  border-radius: 3px;
  bottom: 0;
}

.prey__leg--left {
  left: 5px;
  animation: preyLegRun 0.15s ease-in-out infinite;
  transform-origin: top center;
}

.prey__leg--right {
  right: 5px;
  animation: preyLegRun 0.15s ease-in-out infinite 0.075s;
  transform-origin: top center;
}

/* Dark mode prey */
[data-theme="dark"] .prey__head {
  background: #fcd34d;
}

[data-theme="dark"] .prey__body {
  background: #60a5fa;
}

[data-theme="dark"] .prey__leg {
  background: #3b82f6;
}

@keyframes preyBounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-6px);
  }
}

@keyframes preyLegRun {

  0%,
  100% {
    transform: rotate(-30deg);
  }

  50% {
    transform: rotate(30deg);
  }
}

/* ==========================================
   DINOSAUR - T-Rex
   ========================================== */
.dino {
  position: relative;
  width: 60px;
  height: 45px;
}

.dino__body {
  position: absolute;
  width: 35px;
  height: 25px;
  background: var(--accent-primary);
  border-radius: 18px 12px 8px 12px;
  top: 8px;
  left: 12px;
}

.dino__body::before {
  /* Head */
  content: '';
  position: absolute;
  width: 20px;
  height: 18px;
  background: var(--accent-primary);
  border-radius: 10px 14px 6px 8px;
  top: -6px;
  right: -12px;
}

.dino__body::after {
  /* Eye */
  content: '';
  position: absolute;
  width: 5px;
  height: 5px;
  background: var(--bg-primary);
  border-radius: 50%;
  top: -2px;
  right: -6px;
}

.dino__leg {
  position: absolute;
  width: 7px;
  height: 16px;
  background: var(--accent-secondary);
  border-radius: 4px;
  bottom: 0;
}

.dino__leg--left {
  left: 18px;
  animation: dinoLegRun 0.2s ease-in-out infinite;
  transform-origin: top center;
}

.dino__leg--right {
  left: 30px;
  animation: dinoLegRun 0.2s ease-in-out infinite 0.1s;
  transform-origin: top center;
}

.dino__tail {
  position: absolute;
  width: 18px;
  height: 10px;
  background: var(--accent-primary);
  border-radius: 8px 4px 6px 12px;
  top: 14px;
  left: 0;
  transform: rotate(-10deg);
}

.dino__arm {
  position: absolute;
  width: 6px;
  height: 8px;
  background: var(--accent-secondary);
  border-radius: 3px;
  top: 18px;
  right: 8px;
  transform: rotate(25deg);
  animation: dinoArmWave 0.25s ease-in-out infinite;
}

/* Dark mode dino */
[data-theme="dark"] .dino__body,
[data-theme="dark"] .dino__body::before,
[data-theme="dark"] .dino__tail {
  background: #a855f7;
}

[data-theme="dark"] .dino__leg,
[data-theme="dark"] .dino__arm {
  background: #c084fc;
}

[data-theme="dark"] .dino__body::after {
  background: #0f172a;
}

@keyframes chaseRun {
  0% {
    transform: translateX(-150px);
  }

  100% {
    transform: translateX(calc(100vw + 150px));
  }
}

@keyframes dinoLegRun {

  0%,
  100% {
    transform: rotate(-25deg);
  }

  50% {
    transform: rotate(25deg);
  }
}

@keyframes dinoArmWave {

  0%,
  100% {
    transform: rotate(25deg);
  }

  50% {
    transform: rotate(45deg);
  }
}

/* ==========================================
   SKILLS SECTION
   ========================================== */
.skills {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__title {
  margin-bottom: var(--space-sm);
}

.section__subtitle {
  color: var(--text-muted);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-lg);
}

.skill-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  cursor: default;
}

.skill-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.skill-card:hover .skill-card__icon {
  transform: scale(1.1) rotate(5deg);
}

.skill-card__icon {
  width: 48px;
  height: 48px;
  transition: transform var(--transition-base);
}

.skill-card__name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}

/* Skill Categories */
.skills__category {
  margin-bottom: var(--space-2xl);
}

.skills__category-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.skills__category-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

/* ==========================================
   PROJECTS SECTION (GitHub Repos)
   ========================================== */
.projects {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.project-card {
  padding: var(--space-xl);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-primary);
}

.project-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.project-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.project-card__link {
  color: var(--accent-primary);
  font-size: 1.25rem;
  transition: transform var(--transition-fast);
}

.project-card__link:hover {
  transform: scale(1.2);
}

.project-card__date {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Load More Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn--primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

.projects__footer {
  display: flex;
  justify-content: center;
  margin-top: var(--space-2xl);
}

/* Loading State */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-3xl);
  color: var(--text-muted);
}

.loading__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}


/* ==========================================
   DRAGON FIRE GAME SECTION
   ========================================== */
.dragon-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.dragon-section__container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.dragon-section__game {
  margin-top: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  align-items: center;
}

.dragon-section__canvas-wrapper {
  width: 100%;
  max-width: 1000px;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  position: relative;
}

#scene {
  width: 100%;
  height: auto;
  display: block;
  cursor: crosshair;
}

.dragon-section__controls {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  width: 100%;
  max-width: 1000px;
}

.dragon-control {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  transition: all var(--transition-base);
}

.dragon-control:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.dragon-control__icon {
  font-size: 1.5rem;
}

.dragon-control strong {
  display: block;
  font-size: 1rem;
  color: var(--text-primary);
}

.dragon-control p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.dragon-section__score {
  font-family: 'Outfit', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-primary);
  padding: var(--space-sm) var(--space-xl);
  background: var(--bg-glass);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-full);
}

.dragon-section__subtitle {
  color: var(--text-muted);
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .dragon-section__controls {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
  padding: var(--space-2xl) 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
}

.footer__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

.footer__emoji {
  font-size: 1.5rem;
}

.footer__text {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer__social {
  display: flex;
  gap: var(--space-md);
}

.footer__social-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

.footer__social-icon {
  width: 20px;
  height: 20px;
}

/* ==========================================
   ANIMATIONS
   ========================================== */
@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-20px);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {

  0%,
  100% {
    opacity: 0.1;
    transform: scale(1);
  }

  50% {
    opacity: 0.15;
    transform: scale(1.05);
  }
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 768px) {
  .header__nav {
    display: none;
  }

  .hero__content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-2xl);
  }

  .hero__text {
    align-items: center;
  }

  .hero__image-wrapper {
    order: -1;
  }

  .hero__image {
    width: 240px;
    height: 240px;
  }

  .hero__image-ring {
    width: 280px;
    height: 280px;
  }

  .skills__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }

  .skill-card {
    padding: var(--space-md);
  }

  .skill-card__icon {
    width: 36px;
    height: 36px;
  }

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

@media (max-width: 480px) {
  .skills__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}