/* ===== Mobile Menu Styles ===== */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--bg-primary);
    padding: 2rem 0;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    z-index: 998;
    transition: background-color var(--transition-base);
  }

  body.dark-mode .nav-menu {
    background: var(--bg-secondary);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-item {
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-item:last-child {
    border-bottom: none;
  }

  .nav-link {
    display: block;
  }

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

  .hamburger {
    display: flex;
  }

  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }
}

/* ===== Advanced Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInFromLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInFromRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
  }
  50% {
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.6);
  }
}

@keyframes shimmerText {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rotateIcon {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ===== Stagger Animation Classes ===== */
.stagger-1 {
  animation-delay: 0.1s;
}

.stagger-2 {
  animation-delay: 0.2s;
}

.stagger-3 {
  animation-delay: 0.3s;
}

.stagger-4 {
  animation-delay: 0.4s;
}

.stagger-5 {
  animation-delay: 0.5s;
}

.stagger-6 {
  animation-delay: 0.6s;
}

/* ===== Smooth Page Transitions ===== */
body {
  animation: fadeIn 0.5s ease-in;
}

/* ===== Section Entrance Animations ===== */
.section-title {
  animation: slideUp 0.6s ease-out;
}

.section-subtitle {
  animation: fadeIn 0.6s ease-out 0.2s both;
}

/* ===== Skill Cards Staggered Animation ===== */
.skill-card {
  animation: slideUp 0.6s ease-out both;
}

.skill-card:nth-child(1) {
  animation-delay: 0.1s;
}

.skill-card:nth-child(2) {
  animation-delay: 0.2s;
}

.skill-card:nth-child(3) {
  animation-delay: 0.3s;
}

.skill-card:nth-child(4) {
  animation-delay: 0.4s;
}

.skill-card:nth-child(5) {
  animation-delay: 0.5s;
}

.skill-card:nth-child(6) {
  animation-delay: 0.6s;
}

/* ===== Project Cards Animation ===== */
.project-card {
  animation: slideUp 0.6s ease-out both;
}

.project-card:nth-child(1) {
  animation-delay: 0.1s;
}

.project-card:nth-child(2) {
  animation-delay: 0.2s;
}

.project-card:nth-child(3) {
  animation-delay: 0.3s;
}

/* ===== Interactive Button Effects ===== */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transition: left 0.5s ease;
  z-index: 0;
}

.btn:hover::before {
  left: 100%;
}

.btn > * {
  position: relative;
  z-index: 1;
}

/* ===== Hover Scale Effects ===== */
.skill-card,
.project-card,
.contact-item {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.skill-card:hover,
.project-card:hover,
.contact-item:hover {
  transform: translateY(-8px) scale(1.02);
}

/* ===== Loading Skeleton ===== */
.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ===== Tooltip Styles ===== */
.tooltip {
  position: relative;
  display: inline-block;
  border-bottom: 1px dotted var(--primary);
  cursor: help;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 120px;
  background-color: var(--primary);
  color: white;
  text-align: center;
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -60px;
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 0.75rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
}

.tooltip .tooltiptext::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: var(--primary) transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}

/* ===== Gradient Text Animation ===== */
.gradient-animate {
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent), var(--primary));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmerText 3s linear infinite;
}

/* ===== Glassmorphism Cards ===== */
.glass {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-xl);
}

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  z-index: 1000;
  width: 0%;
  transition: width 0.1s ease;
}

/* ===== Accent Line for Sections ===== */
section {
  position: relative;
}

section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary) 0%, transparent 100%);
  opacity: 0.3;
}

/* ===== Enhanced Focus States for Accessibility ===== */
.btn:focus,
.nav-link:focus,
a:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== Smooth Transitions ===== */
* {
  transition-property: background-color, border-color, color, fill, stroke;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 200ms;
}

/* ===== Print Styles ===== */
@media print {
  .navbar,
  .hero-buttons,
  .social-links {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  section {
    page-break-inside: avoid;
  }
}

/* ===== Dark Mode Support ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --text-primary: #eaeaea;
    --text-secondary: #b0b0b0;
    --border-color: #404040;
  }

  .navbar {
    background-color: rgba(26, 26, 46, 0.95);
  }

  .glass {
    background: rgba(30, 30, 46, 0.95);
    border-color: rgba(255, 255, 255, 0.1);
  }

  .nav-menu {
    background: #1a1a2e;
  }

  .hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  }
}

/* ===== Theme Transition ===== */
html {
  transition: background-color var(--transition-base), color var(--transition-base);
}

body {
  transition: background-color var(--transition-base), color var(--transition-base);
}

body * {
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

/* ===== Dark Mode Theme Animations ===== */
@keyframes themeSwitch {
  0% {
    opacity: 0.8;
  }
  50% {
    opacity: 0.9;
  }
  100% {
    opacity: 1;
  }
}

body.dark-mode {
  animation: themeSwitch var(--transition-base);
}

/* ===== Pixelated Game Loading Screen ===== */
.game-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.game-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  text-align: center;
  color: white;
}

.pixel-logo {
  margin-bottom: 2rem;
}

.pixel-text {
  font-size: 3rem;
  font-weight: bold;
  font-family: 'Space Mono', monospace;
  color: #6366f1;
  text-shadow: 
    4px 4px 0px #1e293b,
    8px 8px 0px rgba(99, 102, 241, 0.3);
  animation: pixelPulse 1s infinite;
  letter-spacing: 0.5rem;
}

@keyframes pixelPulse {
  0%, 100% {
    transform: scale(1);
    filter: brightness(1);
  }
  50% {
    transform: scale(1.05);
    filter: brightness(1.2);
  }
}

.loading-bar-container {
  margin-top: 2rem;
}

.loading-bar {
  width: 400px;
  height: 30px;
  background: #1e293b;
  border: 3px solid #6366f1;
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  box-shadow: 
    0 0 20px rgba(99, 102, 241, 0.3),
    inset 0 0 10px rgba(0, 0, 0, 0.5);
}

.loading-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  background-size: 200% 100%;
  animation: loadingProgress 2s ease-in-out, shimmerBar 1.5s linear infinite;
  position: relative;
  transition: width 0.3s ease;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.8);
}

@keyframes shimmerBar {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.loading-percentage {
  margin-top: 1rem;
  font-size: 1.5rem;
  font-family: 'Space Mono', monospace;
  color: #6366f1;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.loading-tips {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #94a3b8;
  font-family: 'Space Mono', monospace;
  animation: blink 1.5s infinite;
}

@keyframes blink {
  0%, 50%, 100% {
    opacity: 1;
  }
  25%, 75% {
    opacity: 0.3;
  }
}

/* Mobile responsive loading screen */
@media (max-width: 768px) {
  .pixel-text {
    font-size: 2rem;
    letter-spacing: 0.3rem;
  }
  
  .loading-bar {
    width: 300px;
    height: 25px;
  }
  
  .loading-percentage {
    font-size: 1.2rem;
  }
}

/* ===== Achievement Popup System ===== */
.achievement-popup {
  position: fixed;
  top: -200px;
  right: 1.5rem;
  width: 280px;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border: 2px solid #fbbf24;
  border-radius: 10px;
  padding: 1rem;
  z-index: 9998;
  box-shadow: 
    0 8px 30px rgba(251, 191, 36, 0.3),
    0 0 0 2px rgba(251, 191, 36, 0.1),
    inset 0 0 15px rgba(251, 191, 36, 0.05);
  transition: top 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  animation: achievementShine 2s infinite;
}

.achievement-popup.show {
  top: 80px;
  animation: achievementBounce 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes achievementBounce {
  0% {
    transform: scale(0.3) rotate(-5deg);
    opacity: 0;
  }
  50% {
    transform: scale(1.1) rotate(2deg);
  }
  70% {
    transform: scale(0.9) rotate(-1deg);
  }
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 1;
  }
}

@keyframes achievementShine {
  0%, 100% {
    box-shadow: 
      0 8px 30px rgba(251, 191, 36, 0.3),
      0 0 0 2px rgba(251, 191, 36, 0.1),
      inset 0 0 15px rgba(251, 191, 36, 0.05);
  }
  50% {
    box-shadow: 
      0 8px 30px rgba(251, 191, 36, 0.5),
      0 0 0 2px rgba(251, 191, 36, 0.2),
      inset 0 0 20px rgba(251, 191, 36, 0.1);
  }
}

.achievement-content {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.achievement-icon {
  font-size: 2.2rem;
  animation: achievementIconSpin 0.6s ease;
}

@keyframes achievementIconSpin {
  0% {
    transform: rotate(0deg) scale(0);
  }
  50% {
    transform: rotate(180deg) scale(1.2);
  }
  100% {
    transform: rotate(360deg) scale(1);
  }
}

.achievement-text {
  flex: 1;
}

.achievement-title {
  font-size: 0.95rem;
  font-weight: bold;
  color: #fbbf24;
  margin-bottom: 0.2rem;
  font-family: 'Space Mono', monospace;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.achievement-description {
  font-size: 0.8rem;
  color: #e2e8f0;
  font-family: 'Poppins', sans-serif;
}

.achievement-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, #fbbf24 0%, #f59e0b 100%);
  width: 100%;
  border-radius: 0 0 8px 8px;
  animation: achievementTimer 3s linear;
}

@keyframes achievementTimer {
  from {
    width: 100%;
  }
  to {
    width: 0%;
  }
}

/* Mobile responsive achievement */
@media (max-width: 768px) {
  .achievement-popup {
    width: calc(100% - 2rem);
    right: 1rem;
    padding: 0.875rem;
  }
  
  .achievement-popup.show {
    top: 70px;
  }
  
  .achievement-icon {
    font-size: 2rem;
  }
  
  .achievement-title {
    font-size: 0.85rem;
  }
  
  .achievement-description {
    font-size: 0.75rem;
  }
}

/* ===== RPG Character Stats Section ===== */
.character-stats-section {
  margin-top: 4rem;
  padding: 3rem;
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.5) 100%);
  border-radius: 16px;
  border: 2px solid rgba(99, 102, 241, 0.3);
  box-shadow: 
    0 10px 40px rgba(0, 0, 0, 0.3),
    inset 0 0 30px rgba(99, 102, 241, 0.05);
}

.stats-title {
  font-size: 1.8rem;
  color: #f1f5f9;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Space Mono', monospace;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.stats-title i {
  color: #fbbf24;
  font-size: 1.5rem;
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.stat-card {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(30, 41, 59, 0.6) 100%);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid rgba(99, 102, 241, 0.3);
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.stat-card:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.6);
  box-shadow: 
    0 8px 25px rgba(99, 102, 241, 0.3),
    0 0 20px rgba(99, 102, 241, 0.2);
}

.stat-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.stat-icon {
  font-size: 2.5rem;
  animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

.stat-info {
  flex: 1;
}

.stat-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 0.25rem;
}

.stat-level {
  font-size: 0.85rem;
  color: #fbbf24;
  font-family: 'Space Mono', monospace;
  font-weight: bold;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* XP Bar Styling */
.xp-bar {
  width: 100%;
  height: 28px;
  background: rgba(15, 23, 42, 0.8);
  border-radius: 14px;
  border: 2px solid rgba(99, 102, 241, 0.4);
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5);
}

.xp-bar-fill {
  height: 100%;
  width: var(--xp-width, 0%);
  background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  background-size: 200% 100%;
  border-radius: 12px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: xpBarShimmer 2s linear infinite, xpBarFill 1.5s ease-out;
  box-shadow: 
    0 0 15px rgba(99, 102, 241, 0.6),
    inset 0 2px 8px rgba(255, 255, 255, 0.2);
}

@keyframes xpBarFill {
  from {
    width: 0%;
  }
  to {
    width: var(--xp-width, 0%);
  }
}

@keyframes xpBarShimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.xp-text {
  font-size: 0.75rem;
  font-weight: bold;
  color: white;
  font-family: 'Space Mono', monospace;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8);
  z-index: 1;
  white-space: nowrap;
}

/* ===== Achievement Badges Grid ===== */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
}

.achievement-badge {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(30, 41, 59, 0.7) 100%);
  padding: 1.5rem;
  border-radius: 12px;
  text-align: center;
  border: 2px solid rgba(99, 102, 241, 0.3);
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 160px;
}

.achievement-badge::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 70%
  );
  transform: rotate(45deg);
  animation: badgeShine 3s infinite;
}

@keyframes badgeShine {
  0% {
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
  }
  100% {
    transform: translateX(100%) translateY(100%) rotate(45deg);
  }
}

.achievement-badge:hover {
  transform: translateY(-8px) scale(1.05);
  border-color: rgba(251, 191, 36, 0.6);
  box-shadow: 
    0 10px 30px rgba(251, 191, 36, 0.3),
    0 0 20px rgba(251, 191, 36, 0.2);
}

.badge-icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
  animation: badgeFloat 2s ease-in-out infinite;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

@keyframes badgeFloat {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-10px) rotate(5deg);
  }
}

.badge-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  z-index: 1;
}

.badge-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: #e2e8f0;
  font-family: 'Poppins', sans-serif;
  margin: 0;
  line-height: 1.2;
  text-align: center;
}

.badge-rarity {
  font-size: 0.7rem;
  font-weight: bold;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  display: block;
  font-family: 'Space Mono', monospace;
  letter-spacing: 1px;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
  margin: 0;
  width: fit-content;
}
}

.badge-rarity.legendary {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
  color: #000000;
  box-shadow: 
    0 0 20px rgba(251, 191, 36, 0.8),
    0 0 40px rgba(251, 191, 36, 0.4),
    inset 0 2px 4px rgba(255, 255, 255, 0.3);
  border: 1px solid #fbbf24;
  font-weight: 900;
}

.badge-rarity.epic {
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 50%, #7c3aed 100%);
  color: white;
  box-shadow: 
    0 0 20px rgba(139, 92, 246, 0.8),
    0 0 40px rgba(139, 92, 246, 0.4),
    inset 0 2px 4px rgba(255, 255, 255, 0.2);
  border: 1px solid #a78bfa;
}

.badge-rarity.rare {
  background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 50%, #2563eb 100%);
  color: white;
  box-shadow: 
    0 0 20px rgba(59, 130, 246, 0.8),
    0 0 40px rgba(59, 130, 246, 0.4),
    inset 0 2px 4px rgba(255, 255, 255, 0.2);
  border: 1px solid #60a5fa;
}

.badge-rarity.common {
  background: linear-gradient(135deg, #94a3b8 0%, #64748b 50%, #475569 100%);
  color: white;
  box-shadow: 
    0 0 15px rgba(100, 116, 139, 0.6),
    inset 0 2px 4px rgba(255, 255, 255, 0.15);
  border: 1px solid #94a3b8;
}

/* Mobile Responsive Stats */
@media (max-width: 768px) {
  .character-stats-section {
    padding: 2rem 1.5rem;
  }
  
  .stats-title {
    font-size: 1.4rem;
  }
  
  .stats-container {
    grid-template-columns: 1fr;
  }
  
  .achievements-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  
  .achievement-badge {
    padding: 1rem;
  }
  
  .badge-icon {
    font-size: 2.5rem;
  }
  
  .badge-name {
    font-size: 0.85rem;
  }
}

/* ===== FPS Counter / Performance Metrics ===== */
.fps-counter {
  position: fixed;
  top: 80px;
  left: 1rem;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.95) 100%);
  border: 2px solid rgba(99, 102, 241, 0.4);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-family: 'Space Mono', monospace;
  z-index: 9997;
  min-width: 140px;
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.3),
    0 0 15px rgba(99, 102, 241, 0.2),
    inset 0 0 10px rgba(99, 102, 241, 0.05);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.fps-counter:hover {
  border-color: rgba(99, 102, 241, 0.6);
  box-shadow: 
    0 6px 25px rgba(0, 0, 0, 0.4),
    0 0 20px rgba(99, 102, 241, 0.3),
    inset 0 0 15px rgba(99, 102, 241, 0.1);
  transform: translateY(-2px);
}

.fps-title {
  font-size: 0.7rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
  text-align: center;
  font-weight: bold;
}

.fps-metrics {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}

.fps-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.fps-label {
  color: #cbd5e1;
  font-weight: 600;
}

.fps-value {
  color: #6366f1;
  font-weight: bold;
  font-size: 1rem;
  text-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
  animation: fpsGlow 2s ease-in-out infinite;
}

@keyframes fpsGlow {
  0%, 100% {
    text-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
  }
  50% {
    text-shadow: 0 0 15px rgba(99, 102, 241, 0.8);
  }
}

.fps-status {
  text-align: center;
  font-size: 0.7rem;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0.5rem;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.fps-status.good {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.fps-status.medium {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.3);
}

.fps-status.low {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.3);
  animation: lowFpsWarning 1s ease-in-out infinite;
}

@keyframes lowFpsWarning {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Mobile responsive FPS counter */
@media (max-width: 768px) {
  .fps-counter {
    top: 70px;
    left: 0.75rem;
    padding: 0.6rem 0.8rem;
    min-width: 120px;
    font-size: 0.85rem;
  }
  
  .fps-title {
    font-size: 0.65rem;
  }
  
  .fps-item {
    font-size: 0.75rem;
  }
  
  .fps-value {
    font-size: 0.9rem;
  }
  
  .fps-status {
    font-size: 0.65rem;
    padding: 0.25rem 0.4rem;
  }
}