/* Venus and Moon Cosmic Theme CSS */

/* CSS Variables for Venus and Moon color scheme */
:root {
  /* Theme variables (will be updated by JavaScript) */
  --primary-theme: #f5f3ce;
  --secondary-theme: #e0ddaf;
  --accent-theme: #d5d19f;

  /* Venus colors - balanced for better visibility */
  --venus-primary: #ffb38a; /* Slightly deeper for better contrast */
  --venus-secondary: #ffcdbc;
  --venus-accent: #ff9e80;

  /* Moon colors - balanced for better visibility */
  --moon-primary: #f5f3ce; /* Slightly more saturated */
  --moon-secondary: #e0ddaf;
  --moon-accent: #d5d19f;

  /* Text colors for accessibility */
  --text-main: #ffffff;
  --text-muted: #e2e8f0;
  --text-accent: var(--venus-primary);

  /* Mercury color for balanced cosmic palette (Metallic Gray-Blue) */
  --mercury-primary: #f1f5f9;
  --mercury-secondary: #e2e8f0;

  /* Cosmic neutrals */
  --cosmic-dark: #0f172a; /* Slightly deeper navy */
  --cosmic-darker: #020617; /* Deepest cosmic space */
  --cosmic-light: #f8fafc;

  /* Gradient backgrounds */
  --venus-gradient: linear-gradient(135deg, var(--venus-primary), var(--venus-secondary));
  --moon-gradient: linear-gradient(135deg, var(--moon-primary), var(--moon-secondary));
  /* Updated cosmic gradient for better depth and GPU performance */
  --cosmic-gradient: radial-gradient(circle at 50% 50%, 
    #1e293b 0%, 
    var(--cosmic-dark) 40%, 
    var(--cosmic-darker) 100%);
  /* Updated theme gradient for a perfectly balanced 50/50 Venus and Moon blend */
  --theme-gradient: linear-gradient(135deg,
    var(--venus-primary) 0%,
    var(--venus-secondary) 40%,
    var(--moon-primary) 60%,
    var(--moon-secondary) 100%);
  /* Cosmic loader gradient with balanced color representation */
  --loader-gradient: linear-gradient(135deg,
    var(--venus-primary) 0%,
    var(--venus-secondary) 25%,
    var(--moon-primary) 50%,
    var(--moon-secondary) 75%,
    var(--mercury-primary) 100%);

  /* Classic elements */
  --border-classic: 1px solid rgba(255, 255, 255, 0.15);
  --shadow-classic: 0 10px 30px rgba(0, 0, 0, 0.4);
  --transition-smooth: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* Base styles */
body {
  background: var(--cosmic-gradient);
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  transition: background 0.3s ease;
  line-height: 1.7;
  overflow-x: hidden; /* Prevent horizontal scroll on small devices */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Global Starfield - Classy & Subtle */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(1px 1px at 10% 10%, rgba(255,255,255,0.2), transparent),
    radial-gradient(1.5px 1.5px at 20% 50%, var(--venus-primary), transparent),
    radial-gradient(1px 1px at 30% 90%, rgba(255,255,255,0.2), transparent),
    radial-gradient(1.5px 1.5px at 40% 20%, var(--moon-primary), transparent),
    radial-gradient(1px 1px at 50% 80%, rgba(255,255,255,0.2), transparent),
    radial-gradient(1px 1px at 70% 70%, rgba(255,255,255,0.2), transparent),
    radial-gradient(1px 1px at 90% 60%, rgba(255,255,255,0.2), transparent);
  background-size: 600px 600px;
  opacity: 0.2;
  z-index: -1;
  animation: cosmicPulse 10s ease-in-out infinite alternate;
  will-change: transform, opacity; /* GPU optimization for fixed background */
  transform: translateZ(0);
}

@keyframes cosmicPulse {
  0% { opacity: 0.15; transform: scale(1) translateZ(0); }
  100% { opacity: 0.25; transform: scale(1.02) translateZ(0); }
}

/* Selection color - Moon color only */
::selection {
  background-color: var(--moon-primary);
  color: var(--cosmic-darker);
}

::-moz-selection {
  background-color: var(--moon-primary);
  color: var(--cosmic-darker);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Orbitron', sans-serif;
  color: var(--text-main);
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
  letter-spacing: 1px;
}

p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Preloader */
#preloader {
  background: var(--cosmic-gradient);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
  visibility: visible;
  overflow: hidden;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-text {
  color: var(--primary-theme);
  font-family: 'Orbitron', sans-serif;
  margin-top: 25px;
  font-size: clamp(1.2rem, 4vw, 1.8rem);
  font-weight: 700;
  text-shadow: 0 0 15px rgba(255, 202, 176, 0.4);
  animation: textGlow 2.5s infinite alternate;
  letter-spacing: 5px;
  text-transform: uppercase;
}

@keyframes textGlow {
  from {
    text-shadow: 0 0 5px var(--venus-primary), 0 0 10px var(--venus-primary);
  }
  to {
    text-shadow: 0 0 8px var(--moon-primary), 0 0 15px var(--moon-primary);
  }
}

/* Solar system loader container */
.solar-system {
  position: relative;
  width: 250px;
  height: 250px;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
  animation: loaderFloat 3s ease-in-out infinite;
  will-change: transform;
  transform: translateZ(0);
}

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

/* Sun */
.sun {
  width: 40px;
  height: 40px;
  background: radial-gradient(circle, #ffd200, #f7941e);
  border-radius: 50%;
  box-shadow: 0 0 30px #f7941e, 0 0 60px #ffd200;
  position: relative;
  z-index: 10;
  animation: sunPulse 2s infinite ease-in-out;
  will-change: transform, box-shadow;
  transform: translateZ(0);
}

@keyframes sunPulse {
  0%, 100% { transform: scale(1) translateZ(0); box-shadow: 0 0 30px #f7941e, 0 0 60px #ffd200; }
  50% { transform: scale(1.1) translateZ(0); box-shadow: 0 0 40px #f7941e, 0 0 80px #ffd200; }
}

/* Orbit paths */
.orbit {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Planet general styles */
.planet {
  position: absolute;
  border-radius: 50%;
}

/* Mercury */
.mercury-orbit {
  width: 70px;
  height: 70px;
  animation: orbitRotate 3s linear infinite;
}
.mercury {
  width: 8px;
  height: 8px;
  background: var(--mercury-primary);
  top: -4px;
  box-shadow: 0 0 8px var(--mercury-primary);
}

/* Venus */
.venus-orbit {
  width: 110px;
  height: 110px;
  animation: orbitRotate 6s linear infinite;
}
.venus {
  width: 14px;
  height: 14px;
  background: var(--venus-primary);
  top: -7px;
  box-shadow: 0 0 12px var(--venus-primary);
}

/* Earth & Moon (Represented by Moon colors) */
.earth-orbit {
  width: 160px;
  height: 160px;
  animation: orbitRotate 10s linear infinite;
}
.earth {
  width: 16px;
  height: 16px;
  background: #4a90e2; /* Classic Earth blue */
  top: -8px;
  box-shadow: 0 0 15px #4a90e2;
  position: relative;
}

/* Adding a tiny moon orbiting the earth */
.earth::after {
  content: '';
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--moon-primary);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  margin-top: -2px;
  margin-left: -2px;
  box-shadow: 0 0 5px var(--moon-primary);
  animation: moonOrbit 2s linear infinite;
}

@keyframes moonOrbit {
  from { transform: rotate(0deg) translateX(12px); }
  to { transform: rotate(360deg) translateX(12px); }
}

/* Mars */
.mars-orbit {
  width: 210px;
  height: 210px;
  animation: orbitRotate 15s linear infinite;
}
.mars {
  width: 10px;
  height: 10px;
  background: #e27b58;
  top: -5px;
  box-shadow: 0 0 7px #e27b58;
}

@keyframes orbitRotate {
  from { transform: translate3d(0, 0, 0) rotate(0deg); }
  to { transform: translate3d(0, 0, 0) rotate(360deg); }
}

/* Unique Mobile-only Loader Styles (Hidden by default) */
.mobile-loader-ring,
.mobile-loader-ring-outer,
.mobile-loader-core {
  display: none;
}

/* Responsive adjustments for mobile */
@media (max-width: 576px) {
  /* Hide standard solar system elements on mobile */
  .sun, .orbit, .planet {
    display: none !important;
  }

  /* Show unique mobile elements */
  .mobile-loader-ring,
  .mobile-loader-ring-outer,
  .mobile-loader-core {
    display: block;
    position: absolute;
    border-radius: 50%;
  }

  .solar-system {
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(255, 179, 138, 0.1) 0%, transparent 70%);
  }

  /* Central pulsing core for mobile */
  .mobile-loader-core {
    width: 40px;
    height: 40px;
    background: var(--theme-gradient);
    box-shadow: 0 0 20px var(--venus-primary);
    animation: mobileCorePulse 1.5s ease-in-out infinite;
    z-index: 5;
  }

  /* Inner rotating ring */
  .mobile-loader-ring {
    width: 80px;
    height: 80px;
    border: 3px solid transparent;
    border-top: 3px solid var(--venus-primary);
    border-bottom: 3px solid var(--moon-primary);
    animation: mobileRotate 2s linear infinite;
    box-shadow: 0 0 10px rgba(255, 179, 138, 0.3);
  }

  /* Outer pulsing/rotating ring */
  .mobile-loader-ring-outer {
    width: 120px;
    height: 120px;
    border: 1px dashed var(--mercury-primary);
    opacity: 0.5;
    animation: mobileRotateReverse 4s linear infinite, mobileRingPulse 3s ease-in-out infinite;
  }

  @keyframes mobileCorePulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 30px var(--venus-primary); }
  }

  @keyframes mobileRingPulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.1); opacity: 0.6; }
  }

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

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

  /* Preloader text for mobile */
  .preloader-text {
    font-size: 1.2rem !important;
    margin-top: 15px !important;
    letter-spacing: 1px !important;
  }
}

/* Background stars effect */
#preloader::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(2px 2px at 20px 30px, var(--venus-primary), transparent),
    radial-gradient(2px 2px at 40px 70px, var(--moon-primary), transparent),
    radial-gradient(1px 1px at 90px 40px, var(--primary-theme), transparent),
    radial-gradient(1px 1px at 120px 80px, var(--venus-secondary), transparent),
    radial-gradient(2px 2px at 160px 30px, var(--moon-secondary), transparent),
    radial-gradient(1px 1px at 300px 50px, var(--mercury-primary), transparent),
    radial-gradient(3px 3px at 350px 90px, var(--venus-primary), transparent);
  background-repeat: repeat;
  background-size: 200px 100px;
  animation: starfield 20s linear infinite;
  opacity: 0.3;
  z-index: 0;
}

/* Additional starfield layer for depth */
#preloader::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(1px 1px at 50px 20px, var(--mercury-primary), transparent),
    radial-gradient(1px 1px at 100px 60px, var(--moon-primary), transparent),
    radial-gradient(2px 2px at 250px 40px, var(--venus-primary), transparent),
    radial-gradient(1px 1px at 320px 70px, var(--primary-theme), transparent);
  background-repeat: repeat;
  background-size: 300px 150px;
  animation: starfield 30s linear infinite reverse;
  opacity: 0.2;
  z-index: 0;
}

@keyframes starfield {
  from {background-position: 0 0;}
  to {background-position: 200px 0;}
}

/* Navbar */
.navbar {
  background: rgba(2, 6, 23, 0.85) !important;
  backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.75rem 0;
  transition: all 0.3s ease;
  transform: translateZ(0); /* GPU acceleration for sticky navbar */
  will-change: backdrop-filter, transform;
}

.navbar-brand {
  color: var(--primary-theme) !important;
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.nav-link {
  color: var(--text-muted) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-theme) !important;
  text-shadow: 0 0 10px rgba(255, 179, 138, 0.5);
}

/* Hero section */
.hero-section {
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(12px);
  padding: 6rem 2rem;
  border-radius: 30px;
  margin: 2rem auto;
  max-width: 1100px;
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.4);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transform: translateZ(0);
  will-change: transform;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  content-visibility: auto; /* Browser optimization */
  contain-intrinsic-size: 1px 600px;
}

@media (max-width: 768px) {
  .hero-section {
    padding: 4rem 1.5rem;
    margin: 1rem;
    border-radius: 20px;
  }

  /* Reorder elements on mobile - image first, then content below */
  .hero-img {
    order: 1;
    margin-bottom: 1.5rem !important;
  }

  .hero-content {
    order: 2;
  }
}

@media (min-width: 992px) {
  .hero-section {
    flex-direction: row !important;
    text-align: left !important;
    padding: 120px 80px !important;
    gap: 80px !important;
    margin: 60px auto !important;
    justify-content: space-between !important;
    align-items: center !important;
    min-height: 80vh;
  }

  .hero-content {
    flex: 1;
    max-width: 600px;
    order: 1;
  }

  .hero-img {
    order: 2;
    margin: 0 !important;
  }
}

/* Add subtle animated background to hero section */
.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: rotateBg 20s linear infinite;
  z-index: 0;
  transform: translateZ(0);
  will-change: transform;
}

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

/* Hero image */
.hero-img {
  --hero-size: 150px;
  border: 4px solid var(--primary-theme);
  box-shadow: 0 0 30px rgba(255, 179, 138, 0.4);
  width: var(--hero-size) !important;
  height: var(--hero-size) !important;
  max-width: var(--hero-size) !important;
  aspect-ratio: 1/1;
  object-fit: cover;
  margin: 0 auto;
  border-radius: 50% !important;
  transition: var(--transition-smooth);
  position: relative;
  z-index: 1;
  transform: translateZ(0);
  will-change: transform, box-shadow;
  outline: 8px solid rgba(255, 255, 255, 0.05); /* Outer classic ring */
  outline-offset: 10px;
}

.hero-img:hover {
  transform: scale(1.05) translateY(-10px) translateZ(0);
  box-shadow: 0 0 50px rgba(255, 179, 138, 0.6);
  outline-color: rgba(255, 179, 138, 0.15);
}

/* Venus and Moon blend effect */
.hero-img::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50%;
  /* Updated blend effect with 75% Venus and 25% Moon balance */
  background: linear-gradient(135deg,
    var(--venus-primary) 0%,
    var(--venus-secondary) 25%,
    var(--venus-secondary) 50%,
    var(--moon-primary) 60%,
    var(--moon-secondary) 75%,
    var(--moon-secondary) 100%);
  opacity: 0.3;
  mix-blend-mode: overlay;
  z-index: 1;
  pointer-events: none;
  animation: colorShift 8s infinite alternate;
}

.hero-img::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  right: -50%;
  bottom: -50%;
  /* Subtler radial gradient for a more classy appearance */
  background: radial-gradient(circle at center,
    var(--venus-primary) 0%,
    transparent 70%);
  opacity: 0.15;
  mix-blend-mode: soft-light;
  z-index: 2;
  pointer-events: none;
  transform: rotate(0deg);
  animation: rotateGlow 15s linear infinite;
}

@keyframes colorShift {
  0% {
    background: linear-gradient(135deg,
      var(--venus-primary) 0%,
      var(--venus-secondary) 25%,
      var(--venus-secondary) 50%,
      var(--moon-primary) 60%,
      var(--moon-secondary) 75%,
      var(--moon-secondary) 100%);
  }
  50% {
    background: linear-gradient(135deg,
      var(--moon-primary) 0%,
      var(--moon-secondary) 25%,
      var(--venus-primary) 40%,
      var(--venus-primary) 60%,
      var(--venus-secondary) 75%,
      var(--venus-secondary) 100%);
  }
  100% {
    background: linear-gradient(135deg,
      var(--venus-secondary) 0%,
      var(--moon-primary) 15%,
      var(--moon-primary) 35%,
      var(--venus-primary) 50%,
      var(--venus-primary) 75%,
      var(--moon-secondary) 100%);
  }
}

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

.hero-section h1 {
  color: var(--primary-theme);
  font-family: 'Orbitron', sans-serif;
  position: relative;
  z-index: 1;
  text-shadow: 0 0 15px rgba(255, 179, 138, 0.3);
}

.hero-section h2 {
  color: var(--secondary-theme);
  position: relative;
  z-index: 1;
  font-weight: 500;
  letter-spacing: 1px;
}

.hero-btn {
  background: var(--theme-gradient) !important;
  border: none;
  color: var(--cosmic-dark) !important;
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: 30px;
  transition: all 0.3s ease;
  box-shadow: 0 0 15px rgba(255, 202, 176, 0.5);
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.hero-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 20px rgba(255, 202, 176, 0.8);
}

.hero-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: 0.5s;
}

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

/* Section Headers - Modern Classic Styling */
section h2 {
  color: var(--primary-theme);
  font-family: 'Orbitron', sans-serif;
  text-align: center;
  margin-bottom: 3rem;
  text-shadow: 0 0 15px rgba(255, 179, 138, 0.4);
  position: relative;
  display: block; /* Full width block to manage centering better */
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  padding-bottom: 12px;
}

section h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--theme-gradient);
  border-radius: 4px;
}

/* Override for Left Alignment in Grid Layouts (PC) */
@media (min-width: 992px) {
  #about-skills-wrapper section h2 {
    margin-left: 0 !important;
    margin-right: 0 !important;
    text-align: left !important;
 
  }

  #about-skills-wrapper section h2::after {
    left: 0 !important;
    transform: none !important;
  }
}


/* About Section */
.about-section {
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 24px;
  margin: 2rem 1rem;
  padding: 3rem 1.5rem;
  transition: all 0.4s ease;
}

.about-section .section-title {
  color: var(--secondary-theme) !important;
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 2px;
  text-align: center;
  margin-bottom: 1.5rem;
}

.about-section .section-text {
  color: var(--text-muted) !important;
  font-size: 1.1rem;
  line-height: 1.8;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

/* Gallery Section */
.gallery-section {
  background: rgba(15, 23, 42, 0.4); /* Glassmorphism start */
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 24px;
  margin: 2rem 1rem;
  padding: 3rem 1.5rem;
  transition: all 0.4s ease;
  overflow: hidden;
  content-visibility: auto;
  contain-intrinsic-size: 1px 1000px;
}

.gallery-title {
  color: var(--secondary-theme) !important;
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 2px;
}

/* Filter Button Container */
#projects .d-flex.justify-content-center {
  gap: 15px !important;
  margin-bottom: 3rem !important;
  padding: 0 1rem;
}

.filter-btn {
  border: 2px solid var(--venus-primary) !important;
  color: var(--venus-primary) !important;
  background: transparent !important;
  padding: 0.6rem 1.5rem;
  border-radius: 20px;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
  transition: var(--transition-smooth);
  text-transform: uppercase;
}

.filter-btn:hover {
  background: var(--venus-gradient) !important;
  color: var(--cosmic-darker) !important;
  box-shadow: 0 0 20px rgba(255, 179, 138, 0.4);
  transform: translateY(-3px);
}

.filter-btn.active {
  background: var(--theme-gradient) !important;
  border-color: transparent !important;
  color: var(--cosmic-darker) !important;
  box-shadow: 0 0 25px rgba(255, 179, 138, 0.5);
}

/* Alternate Moon theme for specific filters for balance */
.filter-btn[data-filter="illustrations"],
.filter-btn[data-filter="nature"] {
  border-color: var(--moon-primary) !important;
  color: var(--moon-primary) !important;
}

.filter-btn[data-filter="illustrations"]:hover,
.filter-btn[data-filter="nature"]:hover {
  background: var(--moon-gradient) !important;
  color: var(--cosmic-darker) !important;
  box-shadow: 0 0 20px rgba(245, 243, 206, 0.3);
}

.filter-btn[data-filter="illustrations"].active,
.filter-btn[data-filter="nature"].active {
  background: var(--moon-gradient) !important;
  box-shadow: 0 0 25px rgba(245, 243, 206, 0.4);
}

/* Gallery Grid Alignment */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 2rem;
  justify-content: center; /* Center the items if they don't fill the last row */
}

.gallery-card {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-classic);
  transition: var(--transition-smooth);
  background: rgba(15, 23, 42, 0.6);
  border: var(--border-classic);
  cursor: pointer;
  will-change: transform, box-shadow;
  aspect-ratio: 16/9;
  transform: translateZ(0);
  opacity: 1;
}

.gallery-card:hover {
  transform: translateY(-12px) scale(1.02) translateZ(0);
  box-shadow: 0 20px 50px rgba(255, 179, 138, 0.2); /* Venus Glow */
  border-color: var(--venus-primary);
}

.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
  transform: translateZ(0);
  will-change: transform, opacity;
}

.gallery-card:hover img {
  transform: scale(1.1) translateZ(0);
  opacity: 0.6;
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--theme-gradient);
  color: var(--cosmic-dark);
  padding: 1.5rem;
  transform: translateY(100%) translateZ(0);
  transition: var(--transition-smooth);
  font-weight: 800;
  font-family: 'Orbitron', sans-serif;
  text-align: center;
  opacity: 0;
  will-change: transform, opacity;
  backdrop-filter: blur(8px);
  letter-spacing: 1px;
}

.gallery-card:hover .gallery-overlay {
  transform: translateY(0) translateZ(0);
  opacity: 1;
}

/* Logo gallery */
.logo-gallery-item {
  position: relative;
  border-radius: 24px !important;
  overflow: hidden;
  box-shadow: var(--shadow-classic);
  transition: var(--transition-smooth);
  background: rgba(15, 23, 42, 0.6);
  border: var(--border-classic);
  aspect-ratio: 1/1;
  max-width: 100%;
  margin: 0 auto;
  will-change: transform, box-shadow;
  transform: translateZ(0);
}

.logo-gallery-item:hover {
  transform: translateY(-8px) scale(1.05) translateZ(0);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
  border-color: var(--moon-primary);
}

.logo-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 25px;
  transition: var(--transition-smooth);
  transform: translateZ(0);
  will-change: transform;
}

.logo-gallery-item:hover img {
  transform: scale(1.15) translateZ(0);
}

.logo-name-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--theme-gradient);
  color: var(--cosmic-dark);
  padding: 1rem;
  transform: translateY(100%) translateZ(0);
  transition: var(--transition-smooth);
  font-weight: 800;
  font-family: 'Orbitron', sans-serif;
  text-align: center;
  opacity: 0;
  will-change: transform, opacity;
  backdrop-filter: blur(8px);
}

.logo-gallery-item:hover .logo-name-overlay {
  transform: translateY(0) translateZ(0);
  opacity: 1;
}

/* Enhanced gallery entrance animations */
@keyframes slideInLeft {
  from {
    transform: translateX(-50px) translateZ(0);
    opacity: 0;
  }
  to {
    transform: translateX(0) translateZ(0);
    opacity: 1;
  }
}

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

@keyframes slideInUp {
  from {
    transform: translateY(30px) translateZ(0);
    opacity: 0;
  }
  to {
    transform: translateY(0) translateZ(0);
    opacity: 1;
  }
}

.gallery-card:nth-child(odd) {
  animation: slideInLeft 0.6s ease-out forwards;
}

.gallery-card:nth-child(even) {
  animation: slideInRight 0.6s ease-out forwards;
}

.logo-gallery-item:nth-child(odd) {
  animation: slideInLeft 0.6s ease-out forwards;
}

.logo-gallery-item:nth-child(even) {
  animation: slideInRight 0.6s ease-out forwards;
}

/* Staggered animations */
.gallery-card:nth-child(1) { animation-delay: 0.1s; }
.gallery-card:nth-child(2) { animation-delay: 0.2s; }
.gallery-card:nth-child(3) { animation-delay: 0.3s; }
.gallery-card:nth-child(4) { animation-delay: 0.4s; }
.gallery-card:nth-child(5) { animation-delay: 0.5s; }
.gallery-card:nth-child(6) { animation-delay: 0.6s; }
.gallery-card:nth-child(7) { animation-delay: 0.7s; }
.gallery-card:nth-child(8) { animation-delay: 0.8s; }

.logo-gallery-item:nth-child(1) { animation-delay: 0.1s; }
.logo-gallery-item:nth-child(2) { animation-delay: 0.2s; }
.logo-gallery-item:nth-child(3) { animation-delay: 0.3s; }
.logo-gallery-item:nth-child(4) { animation-delay: 0.4s; }
.logo-gallery-item:nth-child(5) { animation-delay: 0.5s; }
.logo-gallery-item:nth-child(6) { animation-delay: 0.6s; }
.logo-gallery-item:nth-child(7) { animation-delay: 0.7s; }
.logo-gallery-item:nth-child(8) { animation-delay: 0.8s; }

/* Skills section - Venus Balanced */
#skills {
  background: rgba(15, 23, 42, 0.2);
  border-radius: 30px;
  padding: 3rem 2rem;
  border: 1px solid rgba(255, 179, 138, 0.1); /* Venus tint */
  transition: var(--transition-smooth);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  content-visibility: auto;
  contain-intrinsic-size: 1px 500px;
}

#skills:hover {
  /* All hover effects removed for skills section */
}

.skill-item {
  margin-bottom: 2rem;
  background: rgba(255, 255, 255, 0.02);
  padding: 1.5rem;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.03);
  transition: var(--transition-smooth);
  transform: translateZ(0);
}

.skill-item:hover {
  /* All hover effects removed for skills section */
}

.skill-item span:first-child {
  color: var(--text-main);
  font-weight: 600;
  font-size: 1.1rem;
}

.skill-item span:last-child {
  color: var(--venus-primary);
  font-weight: 700;
  font-family: 'Orbitron', sans-serif;
}

/* Alternate Moon colors for every second skill item */
.skill-item:nth-child(even) span:last-child {
  color: var(--moon-primary);
}

.skill-item:nth-child(even) .skill-progress {
  background: var(--moon-gradient);
  box-shadow: 0 0 10px var(--moon-primary);
}

.skill-bar {
  height: 8px;
  background: var(--cosmic-darker);
  border-radius: 10px;
  margin-top: 1rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-progress {
  height: 100%;
  background: var(--venus-gradient);
  border-radius: 10px;
  position: relative;
  box-shadow: 0 0 10px var(--venus-primary);
  will-change: width;
  transform: translateZ(0);
}

.skill-progress::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2.5s infinite;
  will-change: transform;
}

@keyframes shimmer {
  0% { transform: translateX(-100%) translateZ(0); }
  100% { transform: translateX(100%) translateZ(0); }
}

/* Contact section - Moon Serenity Balanced */
.contact-section {
  background: rgba(15, 23, 42, 0.3);
  backdrop-filter: blur(15px);
  border-radius: 40px;
  margin: 4rem auto;
  padding: 4rem 2rem;
  border: 1px solid rgba(245, 243, 206, 0.1); /* Moon tint */
  max-width: 1000px;
  transition: var(--transition-smooth);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transform: translateZ(0);
  will-change: transform;
  content-visibility: auto;
  contain-intrinsic-size: 1px 400px;
}

.contact-section:hover {
  border-color: var(--moon-primary);
  box-shadow: 0 15px 40px rgba(245, 243, 206, 0.1);
  transform: translateY(-5px);
}

.contact-section h2 {
  color: var(--moon-primary);
  text-shadow: 0 0 15px rgba(245, 243, 206, 0.3);
}

.email-highlight {
  background: var(--moon-gradient) !important;
  color: var(--cosmic-darker) !important;
  text-decoration: none !important;
  font-weight: 800;
  padding: 1.25rem 2.5rem !important;
  border-radius: 20px !important;
  transition: var(--transition-smooth) !important;
  border: 2px solid var(--moon-primary) !important;
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 1px;
}

.email-highlight:hover {
  transform: translateY(-5px) scale(1.05) !important;
  box-shadow: 0 15px 35px rgba(245, 243, 206, 0.4) !important;
}

.email-highlight i {
  color: var(--cosmic-darker);
  font-size: 1.25rem;
}

/* Helper color classes */
.text-venus { color: var(--venus-primary) !important; }
.text-moon { color: var(--moon-primary) !important; }
.text-venus-accent { color: var(--venus-accent) !important; }
.text-moon-accent { color: var(--moon-accent) !important; }

/* Footer */
footer {
  background: rgba(2, 6, 23, 0.9);
  border-top: var(--border-classic);
  padding: 4rem 0;
  text-align: center;
}

.footer-socials {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.kartik-highlight {
  background: var(--theme-gradient);
  color: var(--cosmic-dark);
  font-weight: 800;
  padding: 5px 15px;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(255, 179, 138, 0.3);
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 1px;
}

/* Social media icons */
.fa-instagram { color: #ff0050 !important; }
.fa-linkedin { color: #0077b5 !important; }
.fa-github { color: #f0f6fc !important; }
.fa-pinterest { color: #e60023 !important; }

/* Hover effects for social icons */
.footer a i {
  transition: var(--transition-smooth);
}

.footer a:hover i {
  transform: translateY(-5px) scale(1.3);
  filter: drop-shadow(0 0 10px currentColor);
}

/* Go to top button */
#goTopBtn {
  background: var(--theme-gradient) !important;
  border: 2px solid var(--primary-theme) !important;
  color: var(--cosmic-dark) !important;
  width: 55px;
  height: 55px;
  border-radius: 18px;
  position: fixed;
  bottom: 40px;
  right: 40px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  display: none;
  z-index: 1000;
  transition: var(--transition-smooth);
}

#goTopBtn:hover {
  transform: translateY(-8px) rotate(5deg);
  box-shadow: 0 15px 35px rgba(255, 179, 138, 0.4);
}

/* Lightbox modal */
.modal-content {
  background: rgba(2, 6, 23, 0.9) !important;
  backdrop-filter: blur(25px);
  border: var(--border-classic) !important;
  border-radius: 30px;
  transform: scale(0.9);
  opacity: 0;
  transition: var(--transition-smooth);
  box-shadow: 0 0 100px rgba(0,0,0,0.8);
}

.modal.show .modal-content {
  transform: scale(1);
  opacity: 1;
}

.lightbox-img {
  border-radius: 20px;
  transition: var(--transition-smooth);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.btn-primary {
  background: var(--theme-gradient) !important;
  border: none !important;
  color: var(--cosmic-dark) !important;
  font-weight: 700 !important;
  letter-spacing: 1px;
  padding: 0.8rem 2rem;
  border-radius: 15px;
  transition: var(--transition-smooth);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 25px rgba(255, 179, 138, 0.4);
}

/* ==============================
  RESPONSIVE DESIGN - Mobile First
============================== */

/* Mobile Navigation Toggler - All Mobile Devices */
@media (max-width: 991.98px) {
  .navbar-toggler {
    display: block !important;
    z-index: 1060;
    padding: 10px !important;
    border: var(--border-classic) !important;
    border-radius: 12px !important;
    background: rgba(255, 255, 255, 0.05) !important;
    transition: var(--transition-smooth) !important;
  }

  .navbar-toggler:focus {
    box-shadow: 0 0 15px var(--venus-primary) !important;
  }

  .navbar-brand {
    font-size: 1.5rem !important;
    color: var(--primary-theme) !important;
  }

  .navbar-toggler .material-symbols-outlined {
    color: var(--venus-primary) !important;
    font-size: 2.2rem !important; /* Slightly larger icon */
    vertical-align: middle;
  }

  /* Mobile Offcanvas Menu Styling - Consistent for all mobile/tablet */
  .offcanvas {
    background: rgba(2, 6, 23, 0.98) !important; /* Slightly transparent deep cosmic */
    backdrop-filter: blur(20px);
    border-right: none !important;
    width: 100% !important; /* Full width for better visibility on mobile */
    max-width: 100% !important;
    height: 100vh !important;
    visibility: visible !important;
    display: flex;
    flex-direction: column;
    cursor: pointer; /* Indicate the entire menu is clickable to close */
  }

  .offcanvas-header {
    padding: 30px !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
    background: rgba(255, 255, 255, 0.02);
  }

  .offcanvas-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--primary-theme) !important;
    letter-spacing: 3px;
    font-weight: 800 !important;
    font-size: 1.8rem !important;
    text-shadow: 0 0 15px rgba(255, 179, 138, 0.4);
  }

  .offcanvas-body {
    padding: 50px 30px !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important; /* Center items vertically */
    height: 100% !important;
    text-align: center; /* Center text */
  }

  .offcanvas-body .navbar-nav {
    flex-direction: column !important;
    gap: 35px !important; /* Larger gap for full vertical feel */
    width: 100% !important;
    align-items: center !important;
  }

  .nav-link {
    font-size: 2rem !important; /* Bold, large text for full vertical menu */
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
    margin-bottom: 0 !important;
    opacity: 1 !important;
    transition: var(--transition-smooth);
    color: var(--text-main) !important;
    display: inline-block !important;
    width: auto !important;
    padding: 10px 20px !important;
    position: relative;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--theme-gradient);
    transition: width 0.3s ease;
  }

  .nav-link:hover::after, .nav-link.active::after {
    width: 100%;
  }

  .nav-link:hover, .nav-link.active {
    color: var(--venus-primary) !important;
    text-shadow: 0 0 20px rgba(255, 179, 138, 0.6);
    transform: scale(1.1);
  }
}

/* Extra Small Devices (phones, less than 576px) */
@media (max-width: 575.98px) {
  /* Mobile Navigation - Modern Classic Mix - MOVED TO PARENT MEDIA QUERY */

  /* Hero Section - Balanced Editorial Look */
  .hero-section {
    padding: 140px 25px 80px !important;
    min-height: 90vh;
  }

  .hero-img {
    --hero-size: 140px;
    outline-width: 6px;
    outline-offset: 8px;
    margin-bottom: 40px !important;
  }

  .hero-section h1 {
    font-size: clamp(2.2rem, 10vw, 3rem) !important;
    letter-spacing: -1px;
  }

  /* Section Headers */
  section h2 {
    font-size: 2rem !important;
    text-align: left !important;
    left: 0;
    transform: none;
    width: 100%;
  }

  section h2::after {
    left: 0;
    width: 60px;
  }

  /* About section */
  #about p {
    padding: 2rem;
    font-size: 1.05rem !important;
  }

  /* Skills */
  .skill-item {
    padding: 1.25rem;
  }

  /* Contact */
  .email-highlight {
    padding: 1.5rem !important;
    font-size: 0.85rem !important;
  }
}

/* Small Devices (landscape phones, 576px and up) */
@media (min-width: 576px) and (max-width: 767.98px) {
  .hero-section {
    margin: 1rem;
    padding: 2rem 1rem;
  }

  .hero-img {
    --hero-size: 100px;
  }

  .gallery-section {
    margin: 1rem;
    padding: 1.5rem !important;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
  }

  .filter-btn {
    padding: 0.45rem 1rem;
    font-size: 0.9rem;
  }

  #skills {
    padding: 2.5rem 1rem;
  }

  .contact-section {
    margin: 1rem;
  }

  .email-highlight {
    font-size: 0.85rem;
  }
}

/* Medium Devices (tablets, 768px and up) */
@media (min-width: 768px) and (max-width: 991.98px) {
  .hero-section {
    margin: 1.5rem;
    padding: 2.5rem 1.5rem;
  }

  .hero-img {
    --hero-size: 120px;
  }

  .gallery-section {
    margin: 1.5rem;
    padding: 2rem !important;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.25rem;
  }

  #skills {
    padding: 3rem 1.5rem;
  }

  .contact-section {
    margin: 1.5rem;
  }
}

/* Large Devices (desktops, 992px and up) */
@media (min-width: 992px) and (max-width: 1199.98px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
  }

  .hero-img {
    --hero-size: 140px;
  }
}

/* Navbar - Desktop Floating Glass Style */
@media (min-width: 992px) {
  .navbar {
    top: 25px !important;
    width: 85% !important;
    max-width: 1200px !important;
    margin: 0 auto !important;
    border-radius: 24px !important;
    border: var(--border-classic) !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    background: rgba(2, 6, 23, 0.75) !important;
    backdrop-filter: blur(25px) !important;
    padding: 10px 40px !important; /* Balanced vertical padding */
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5) !important;
    display: flex !important;
    align-items: center !important;
  }

  .navbar .container-fluid {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100%;
  }

  .nav-link {
    padding: 8px 25px !important;
    border-radius: 15px;
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem !important; /* Slightly larger for clarity */
    letter-spacing: 1px;
    display: flex !important;
    align-items: center !important;
    height: 100% !important;
  }

  .navbar-brand {
    font-size: 1.4rem !important;
    margin-right: auto !important;
    display: flex !important;
    align-items: center !important;
  }

  .nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--venus-primary) !important;
  }
}

/* Hero Section - PC Split Layout */
@media (min-width: 992px) {
  .hero-section {
    padding: 120px 80px !important;
    gap: 80px !important;
    margin: 60px auto !important;
  }

  .hero-img {
    --hero-size: 380px !important;
    outline-width: 10px;
    outline-offset: 15px;
  }

  .hero-section h1 {
    font-size: 5rem !important;
    letter-spacing: -2px;
  }

  .hero-section h2 {
    font-size: 2.2rem !important;
    opacity: 0.8;
  }
}

/* About & Skills - Side-by-Side Grid Layout for PC */
@media (min-width: 992px) {
  #about-skills-wrapper {
    gap: 60px;
    margin-top: 40px;
    margin-bottom: 100px;
  }

  #skills {
    padding: 4rem 3rem !important;
  }
}

/* Gallery - Dynamic 4-Column Layout */
@media (min-width: 1200px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 30px !important;
  }
 

  .gallery-section {
    padding: 80px 40px !important;
    margin: 40px auto !important;
    max-width: 1400px;
  }

  .gallery-card {
    aspect-ratio: 4/5 !important; /* Portrait style cards for desktop gallery */
  }
}

/* Landscape Orientation Adjustments */
@media (max-height: 600px) and (orientation: landscape) {
  .hero-section {
    padding: 1rem !important;
  }

  .hero-img {
    --hero-size: 60px;
  }

  .hero-section h1 {
    font-size: 1.5rem !important;
  }

  .hero-section h2 {
    font-size: 0.9rem !important;
  }

  .lightbox-img {
    max-height: 70vh !important;
  }
}

/* Print Styles */
@media print {
  #preloader,
  .navbar,
  #goTopBtn,
  .filter-btn,
  .hero-btn,
  footer {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }

  .gallery-card,
  .logo-gallery-item {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}

/* Accessibility enhancements */
*:focus-visible {
  outline: 2px solid var(--primary-theme);
  outline-offset: 2px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--cosmic-darker);
}

::-webkit-scrollbar-thumb {
  background: var(--theme-gradient);
  border-radius: 10px;
  border: 3px solid var(--cosmic-darker);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--venus-gradient);
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* end css styles */