/* ==========================================================================
   ERIC JOHNSON — WEB3 FULL-STACK ENGINEER PORTFOLIO
   Premium Glassmorphism Design System & Cyber Aesthetics
   ========================================================================== */

/* ==========================================================================
   #FONTS & TYPOGRAPHY IMPORTS
   ========================================================================== */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Outfit:wght@300;400;500;600;700;800&display=swap");

/* ==========================================================================
   #DESIGN TOKENS (CSS CUSTOM PROPERTIES)
   ========================================================================== */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Outfit:wght@300;400;500;600;700;800&display=swap");

/* === Design Tokens === */
:root {
  /* Primary palette — electric violet */
  --primary: #8b5cf6;
  --primary-light: #a78bfa;
  --primary-dark: #6d28d9;
  --primary-glow: rgba(139, 92, 246, 0.4);

  /* Accent — cyber cyan */
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  --accent-glow: rgba(6, 182, 212, 0.35);

  /* Secondary — emerald */
  --secondary: #10b981;
  --secondary-light: #34d399;

  /* Glassmorphism 2.0 Elements */
  --glass-bg: rgba(255, 255, 255, 0.05); /* more transparent */
  --glass-bg-strong: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.15);
  --glass-highlight: inset 0 1px 1px rgba(255, 255, 255, 0.2); /* Physical edge light */
  --glass-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 10px 15px -3px rgba(0, 0, 0, 0.08),
    0 25px 40px -10px rgba(0, 0, 0, 0.1); /* Layered dimensional shadow */

  /* Text Typography */
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  /* Global Surfaces */
  --bg-body: #fafafa;
  --bg-card: rgba(255, 255, 255, 0.08);

  /* Interaction Parameters */
  --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); /* Spring dynamics */
  --radius: 20px;
  --radius-sm: 12px;
  --radius-pill: 100px;
  --mono: "JetBrains Mono", monospace;
}

/* === Cyber Dark Theme === */
.dark-theme {
  --primary: #a78bfa;
  --primary-light: #c4b5fd;
  --primary-dark: #7c3aed;
  --primary-glow: rgba(167, 139, 250, 0.35);

  --accent: #22d3ee;
  --accent-light: #67e8f9;
  --accent-glow: rgba(34, 211, 238, 0.3);

  --glass-bg: rgba(15, 23, 42, 0.5);
  --glass-bg-strong: rgba(15, 23, 42, 0.75);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: inset 0 1px 1px rgba(255, 255, 255, 0.08);
  --glass-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 10px 15px -3px rgba(0, 0, 0, 0.4),
    0 30px 60px -10px rgba(0, 0, 0, 0.6);

  --text-primary: #f8fafc;
  --text-secondary: #e2e8f0;
  --text-muted: #94a3b8;

  --bg-body: #0b0a10; /* Deep Void background */
  --bg-card: rgba(30, 41, 59, 0.35);
}

/* ==========================================================================
   #GLOBAL RESET & BASE STYLES
   ========================================================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* === Accessibility: Global Focus Management === */
:focus {
  outline: none; /* Native outline suppressed; using :focus-visible strictly */
}

:focus-visible {
  outline: 2px solid transparent; /* Fallback */
  box-shadow:
    0 0 0 2px var(--bg-body),
    0 0 0 5px var(--accent-light),
    0 0 15px var(--accent-glow) !important;
  border-radius: var(--radius-sm);
  transition:
    box-shadow 0.2s ease,
    transform 0.2s ease;
  z-index: 50; /* Ensure focus rings sit visually on top */
}

/* Visually Hidden (Screen Reader Only) utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Skip to Main Content Link */
.skip-link {
  position: absolute;
  top: -100px; /* Hidden far above viewport */
  left: 20px;
  background: var(--primary-dark);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 700;
  font-family: var(--mono);
  box-shadow: 0 4px 15px var(--primary-glow);
  transition: top 0.3s ease;
  opacity: 0;
}

.skip-link:focus-visible {
  top: 20px;
  opacity: 1;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-body);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* ==========================================================================
   #BACKGROUNDS & PARTICLES (AMBIENT LIGHTING)
   ========================================================================== */
body::before {
  content: "";
  position: fixed;
  inset: -100px; /* Oversized to prevent clipping */
  background:
    radial-gradient(
      ellipse 800px 600px at 15% 20%,
      rgba(139, 92, 246, 0.12) 0%,
      transparent 70%
    ),
    radial-gradient(
      ellipse 600px 600px at 85% 60%,
      rgba(6, 182, 212, 0.08) 0%,
      transparent 70%
    ),
    radial-gradient(
      ellipse 400px 400px at 50% 100%,
      rgba(16, 185, 129, 0.05) 0%,
      transparent 70%
    );
  pointer-events: none;
  z-index: -2;
  animation: bgShift 25s ease-in-out infinite alternate;
  filter: blur(40px); /* Deep ambient scattering */
}

@keyframes bgShift {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(-30px, 20px) scale(1.1);
  }
}

/* Noise overlay */
.noise {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: noiseGrain 8s steps(10) infinite;
}

@keyframes noiseGrain {
  0%,
  100% {
    transform: translate(0, 0);
  }
  10% {
    transform: translate(-5%, -5%);
  }
  30% {
    transform: translate(5%, -10%);
  }
  50% {
    transform: translate(-10%, 5%);
  }
  70% {
    transform: translate(10%, 10%);
  }
  90% {
    transform: translate(-5%, 10%);
  }
}

/* Background particles container */
.bg-particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.bg-particles .particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--primary-light);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 8s ease-in-out infinite;
}

@keyframes particleFloat {
  0% {
    opacity: 0;
    transform: translateY(100vh) scale(0);
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    opacity: 0;
    transform: translateY(-10vh) scale(1);
  }
}

/* ==========================================================================
   #TYPOGRAPHY & GLOBAL ELEMENTS
   ========================================================================== */
img {
  max-width: 100%;
}

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

a:hover {
  color: var(--accent);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Outfit", sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  letter-spacing: -0.03em; /* Tighter modern tracking */
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4rem); /* Larger heroic scale */
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--primary-dark) 0%,
    var(--primary) 40%,
    var(--accent) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.1));
}

.dark-theme h1 {
  background: linear-gradient(
    135deg,
    #ffffff 10%,
    var(--primary-light) 50%,
    var(--accent) 90%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 4px 20px var(--primary-glow));
}

/* Optimize bold text in paragraph and list items for Dark Mode */
.dark-theme strong,
.dark-theme b {
  color: var(--accent-light);
  text-shadow: 0 0 8px var(--accent-glow);
  font-weight: 700;
  -webkit-font-smoothing: antialiased;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}
h3 {
  font-size: 1.25rem;
}
p {
  margin-bottom: 1rem;
}
ul {
  list-style: none;
}
code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: rgba(124, 58, 237, 0.1);
  color: var(--primary);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

/* ==========================================================================
   #LAYOUT & STRUCTURAL COMPONENTS
   ========================================================================== */
.container {
  max-width: 1200px; /* Slightly wider */
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem); /* Fluid breathing room */
  position: relative;
}

/* === Next-Gen Glass Cards 2.0 === */
.glass-card,
.glass-inner-card {
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow:
    var(--glass-highlight), var(--glass-shadow); /* Applied inset highlight & multi-layered depth */
  padding: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  will-change: transform, box-shadow; /* Hardware acceleration */
}

.glass-inner-card {
  background: var(--bg-card);
  margin-bottom: 1.25rem;
  padding: 1.5rem;
}

.glass-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--glass-border),
    transparent
  );
}

.section-card {
  transform: translateY(0);
  transition: transform 0.5s ease;
}

/* ==========================================================================
   #PAGE COMPONENTS

   ## Hero Header
   ========================================================================== */
.hero-header {
  background: linear-gradient(135deg, var(--glass-bg-strong), var(--glass-bg));
  border: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
}

.hero-header::after {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: heroGlow 6s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% {
    transform: translate(0, 0);
    opacity: 0.3;
  }
  100% {
    transform: translate(-30px, 20px);
    opacity: 0.6;
  }
}

.profile-section {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.profile-image {
  flex: 0 0 140px;
}

.avatar {
  width: 140px;
  height: 140px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  font-size: 2.75rem;
  font-weight: 800;
  font-family: "Outfit", sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  position: relative;
  box-shadow:
    inset 0 -10px 30px rgba(0, 0, 0, 0.2),
    /* Inner 3D spherical effect */ 0 0 40px var(--primary-glow),
    0 15px 35px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.profile-image:hover .avatar {
  transform: scale(1.05) translateY(-5px);
  box-shadow:
    inset 0 -10px 30px rgba(0, 0, 0, 0.1),
    0 0 60px var(--primary-glow),
    0 20px 40px rgba(0, 0, 0, 0.25);
}

.avatar-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: var(--accent);
  border-right-color: var(--primary-light);
  animation: ringRotate 4s linear infinite;
}

@keyframes ringRotate {
  to {
    transform: rotate(360deg);
  }
}

.profile-details {
  flex: 1;
  min-width: 280px;
}

.title-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(16, 185, 129, 0.12);
  color: var(--secondary);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.status-dot {
  width: 7px;
  height: 7px;
  background: var(--secondary);
  border-radius: 50%;
  animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

.profile-details h2 {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.tagline {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  background: transparent;
}

.contact-item:hover {
  color: var(--primary);
  background: var(--glass-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--glass-shadow);
}
.contact-item i {
  color: var(--primary);
  font-size: 1.1rem;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.75rem;
  background: var(--glass-bg-strong); /* Stronger glass */
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  min-width: 110px;
  box-shadow: var(--glass-highlight), var(--glass-shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent);
  opacity: 0;
  transition: var(--transition);
}

.stat-item:hover {
  border-color: var(--primary-light);
  box-shadow:
    0 10px 30px var(--primary-glow),
    var(--glass-highlight);
  transform: translateY(-6px);
}
.stat-item:hover::before {
  opacity: 1;
}

.stat-number {
  font-family: "Outfit", sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   ## Navigation (Glass Nav)
   ========================================================================== */
.glass-nav {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill); /* Pill design for extreme modern look */
  padding: 0.5rem 0.8rem;
  margin: 0 auto 2.5rem;
  position: sticky;
  top: 1.5rem;
  z-index: 100;
  box-shadow: var(--glass-highlight), var(--glass-shadow);
  max-width: fit-content; /* Float naturally */
}

.glass-nav ul {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}

.glass-nav a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-weight: 500;
  font-size: 0.9rem;
}

.glass-nav a:hover,
.glass-nav a.active {
  color: var(--primary);
  background: var(--primary-glow);
}

.glass-nav a i {
  font-size: 1.1rem;
}

/* === Section Titles === */
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  color: var(--primary);
  border-bottom: 2px solid var(--glass-border);
  padding-bottom: 0.75rem;
}

.section-title i {
  font-size: 1.4rem;
}

.section-content {
  padding: 0.5rem;
}

/* ==========================================================================
   ## Timeline (Experience Section)
   ========================================================================== */
.timeline {
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--primary-glow),
    var(--accent),
    transparent
  );
  box-shadow: 0 0 15px var(--accent-glow);
  opacity: 0.8;
}

.timeline-item {
  position: relative;
  padding-left: 55px;
  margin-bottom: 2.5rem;
  transition: var(--transition);
}

.timeline-item:hover {
  transform: translateX(5px);
}

.timeline-dot {
  position: absolute;
  left: 9px;
  top: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-body);
  border: 4px solid var(--accent);
  z-index: 1;
  box-shadow:
    0 0 20px var(--accent-glow),
    inset 0 0 10px var(--accent-glow);
  transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent);
  transform: scale(1.2);
  box-shadow:
    0 0 30px var(--accent),
    inset 0 0 20px rgba(255, 255, 255, 0.5);
}

.timeline-date {
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-family: var(--mono);
  font-size: 0.9rem;
}

.timeline-content h3 {
  margin-bottom: 0.25rem;
}

.timeline-content h4 {
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.timeline-content ul {
  list-style: none;
  padding: 0;
}

.timeline-content li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-content li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* ==========================================================================
   ## Hero 2x2 Links Grid
   ========================================================================== */
.hero-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
  margin-bottom: 2.5rem;
}

@media (max-width: 768px) {
  .hero-links-grid {
    grid-template-columns: 1fr;
  }
}

.hero-links-grid .contact-item {
  padding: 0.8rem 1.2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  font-size: 0.95rem;
  justify-content: flex-start;
  margin: 0;
}

.hero-links-grid .contact-item:hover {
  background: var(--glass-bg-strong);
  border-color: var(--primary-light);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px var(--glass-shadow);
}

.hero-links-grid .contact-item i {
  font-size: 1.2rem;
  color: var(--primary);
}

/* 4th Special Item: Printable Resume */
.hero-links-grid .resume-highlight {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(6, 182, 212, 0.05));
  border-color: rgba(124, 58, 237, 0.2);
  position: relative;
  overflow: hidden;
}

.hero-links-grid .resume-highlight::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(124, 58, 237, 0.08), transparent);
  transition: 0.5s ease;
}

.hero-links-grid .resume-highlight:hover::before {
  left: 100%;
}

.hero-links-grid .resume-highlight:hover {
  box-shadow: 0 8px 25px rgba(124, 58, 237, 0.15);
  border-color: var(--primary);
}

.hero-links-grid .resume-highlight .highlight-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
  font-family: var(--font-heading);
}

/* ==========================================================================
   ## Micro Components (Badges, Tags)
   ========================================================================== */
.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.75rem 0;
}

.badge {
  background: rgba(139, 92, 246, 0.1);
  color: var(--primary);
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--mono);
  border: 1px solid rgba(139, 92, 246, 0.3);
  box-shadow: 0 2px 10px rgba(139, 92, 246, 0.1);
  transition: var(--transition);
  white-space: nowrap;
}

.badge:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px var(--primary-glow);
}

.badge.accent {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent);
  border-color: rgba(6, 182, 212, 0.2);
}

/* ==========================================================================
   ## Project Cards
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.project-card {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  transition: var(--transition);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius);
  box-shadow: var(--glass-highlight), var(--glass-shadow);
  will-change: transform, box-shadow;
}

.project-card:hover {
  border-color: var(--primary-light);
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.3),
    0 15px 50px rgba(0, 0, 0, 0.15),
    0 0 30px var(--primary-glow);
  transform: translateY(-6px) scale(1.01);
}

.project-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.project-header h3 {
  font-size: 1.4rem;
  margin-bottom: 0;
}

.project-type {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  background: rgba(6, 182, 212, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(6, 182, 212, 0.15);
}

.project-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.project-highlights {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  padding: 1rem;
  background: var(--glass-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.highlight-item i {
  color: var(--secondary);
  font-size: 0.9rem;
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.highlight-item i.bi-shield-check {
  color: var(--accent);
}

.project-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

/* ==========================================================================
   ## Buttons
   ========================================================================== */
.glass-button {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  box-shadow:
    var(--glass-highlight),
    0 4px 12px rgba(0, 0, 0, 0.05);
  will-change: transform, box-shadow;
}

.glass-button:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary-light);
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.4),
    0 8px 25px var(--primary-glow);
  transform: translateY(-3px);
}

.cta-button {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.85rem 2rem;
  font-size: 1.05rem;
  font-weight: 700;
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.4),
    0 4px 15px var(--primary-glow);
  will-change: transform, box-shadow;
  transition: var(--transition);
}

.cta-button:hover {
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.5),
    0 12px 30px var(--primary-glow),
    0 12px 30px var(--accent-glow);
  transform: translateY(-4px) scale(1.02);
  color: white;
}

/* ==========================================================================
   ## Skills Section
   ========================================================================== */
.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  height: 100%;
}

.skill-category h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  background: rgba(139, 92, 246, 0.08); /* Transparent base */
  color: var(--primary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  transition: var(--transition);
  border: 1px solid rgba(139, 92, 246, 0.25);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.skill-tag:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary-light);
  transform: translateY(-3px) scale(1.03);
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.4),
    0 8px 20px var(--primary-glow);
}

/* ==========================================================================
   ## Community Grid
   ========================================================================== */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}

.community-item {
  text-align: center;
  padding: 1.5rem 1rem;
  transition: var(--transition);
}

.community-item:hover {
  transform: translateY(-3px);
  border-color: var(--primary-light);
}

.community-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
  display: block;
}

.community-item h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.community-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.5;
}

/* ==========================================================================
   ## Contact Section
   ========================================================================== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.contact-info,
.contact-cta {
  height: 100%;
}

.contact-info .contact-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.25rem;
}

.contact-info .contact-item {
  font-size: 0.95rem;
}

.contact-cta p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-cta .cta-button {
  margin-top: 0.5rem;
}

/* ==========================================================================
   ## Footer
   ========================================================================== */
footer {
  text-align: center;
  padding: 1.5rem 2rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  font-size: 1.3rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.social-links a:hover {
  color: var(--primary);
  transform: translateY(-2px);
}

/* ==========================================================================
   #ANIMATIONS & KEYFRAMES
   ========================================================================== */
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 var(--primary-glow);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(124, 58, 237, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(124, 58, 237, 0);
  }
}

/* Fade in animation for sections */
.section-card {
  opacity: 1; /* Progressive enhancement fallback */
  transform: translateY(0);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.section-card.fade-hidden {
  opacity: 0;
  transform: translateY(30px);
}

.section-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   #UTILITIES & TOGGLES

   ## Theme & Mobile Nav Toggle
   ========================================================================== */
.theme-toggle,
.mobile-nav-toggle {
  position: fixed;
  z-index: 1000;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle:hover,
.mobile-nav-toggle:hover {
  border-color: var(--primary-light);
  box-shadow: 0 4px 20px var(--primary-glow);
}

.theme-toggle {
  top: 20px;
  right: 20px;
  font-size: 1.2rem;
}

.mobile-nav-toggle {
  top: 20px;
  left: 20px;
  font-size: 1.5rem;
  display: none;
}

/* ==========================================================================
   #RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  .glass-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    height: 100%;
    border-radius: 0;
    padding: 2rem;
    transition: left 0.3s ease;
  }

  .glass-nav ul {
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 4rem;
  }

  .glass-nav.mobile-active {
    left: 0;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
  }

  .profile-section {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .profile-details {
    min-width: unset;
  }

  .contact-links {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .title-wrapper {
    justify-content: center;
  }

  .timeline-item {
    padding-left: 35px;
  }
  .timeline::before {
    left: 15px;
  }
  .timeline-dot {
    left: 6px;
    width: 18px;
    height: 18px;
  }

  .project-card {
    padding: 1.5rem;
  }

  .skills-container {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }

  .glass-card,
  .glass-inner-card {
    padding: 1.25rem;
  }

  .profile-image {
    flex: 0 0 110px;
  }

  .avatar {
    width: 110px;
    height: 110px;
    font-size: 2.25rem;
  }

  .hero-stats {
    gap: 0.75rem;
  }

  .stat-item {
    padding: 0.5rem 0.75rem;
    min-width: 70px;
  }

  .stat-number {
    font-size: 1.2rem;
  }
  .stat-label {
    font-size: 0.65rem;
  }

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

  .project-highlights {
    padding: 0.75rem;
  }

  .highlight-item {
    font-size: 0.82rem;
  }
}

/* ==========================================================================
   #ACCESSIBILITY (MEDIA QUERIES)
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  /* Override animations, smooth scrolling, and decorative particle motion */
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  html {
    scroll-behavior: auto !important;
  }

  .bg-particles,
  .noise {
    display: none !important; /* Hide decorative moving particles */
  }

  /* Ensure hardware accelerated scale impacts are nullified */
  .stat-item:hover,
  .badge:hover,
  .project-card:hover,
  .glass-button:hover,
  .cta-button:hover,
  .skill-tag:hover,
  .community-item:hover,
  .social-links a:hover,
  .timeline-item:hover {
    transform: none !important;
  }
}

@media (prefers-contrast: more) {
  /* Increase readability bounds for low vision users */
  :root {
    --text-muted: #475569;
    --glass-bg: rgba(255, 255, 255, 0.4);
    --glass-border: rgba(0, 0, 0, 0.3);
  }

  .dark-theme {
    --text-muted: #cbd5e1;
    --glass-border: rgba(255, 255, 255, 0.5);
    --bg-card: rgba(30, 41, 59, 0.9);
    --glass-bg-strong: rgba(15, 23, 42, 0.95);
  }
}

/* ==========================================================================
   #PRINT STYLES
   ========================================================================== */
@media print {
  body {
    background: white;
    color: black;
  }
  .glass-nav,
  .theme-toggle,
  .mobile-nav-toggle,
  .noise,
  .bg-particles {
    display: none;
  }
  .glass-card,
  .glass-inner-card {
    background: transparent;
    backdrop-filter: none;
    border: 1px solid #ddd;
    box-shadow: none;
  }
  .section-card {
    opacity: 1;
    transform: none;
  }
}