/* ==========================================================================
   PORTFOLIO 3D - CYBER DARK THEME
   Modern 3D Interactive Portfolio Stylesheet
   ========================================================================== */

:root {
  /* Color Palette - Cyberpunk (Default) */
  --bg-primary: #05050a;
  --bg-secondary: #0a0a14;
  --bg-tertiary: #101020;
  --bg-glass: rgba(16, 16, 32, 0.65);
  --bg-glass-card: rgba(18, 18, 36, 0.55);
  --bg-glass-hover: rgba(26, 26, 50, 0.75);

  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-purple: #7928ca;
  --accent-magenta: #ff0080;
  --accent-emerald: #00f5a0;
  --accent-amber: #f5a623;

  --primary-glow: #00f2fe;
  --secondary-glow: #7928ca;
  --accent-glow-rgb: 0, 242, 254;

  --text-primary: #ffffff;
  --text-secondary: #a0a5c0;
  --text-muted: #5e6382;

  --border-light: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 242, 254, 0.3);
  --border-glass: rgba(255, 255, 255, 0.12);

  --font-main: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Theme variations */
[data-theme="matrix"] {
  --primary-glow: #00ff87;
  --secondary-glow: #60efff;
  --accent-cyan: #00ff87;
  --accent-glow-rgb: 0, 255, 135;
  --border-glow: rgba(0, 255, 135, 0.35);
}

[data-theme="violet"] {
  --primary-glow: #b000ff;
  --secondary-glow: #00f0ff;
  --accent-cyan: #b000ff;
  --accent-purple: #e040fb;
  --accent-glow-rgb: 176, 0, 255;
  --border-glow: rgba(176, 0, 255, 0.35);
}

[data-theme="solar"] {
  --primary-glow: #ff5e3a;
  --secondary-glow: #ff2a68;
  --accent-cyan: #ff5e3a;
  --accent-purple: #ff9500;
  --accent-glow-rgb: 255, 94, 58;
  --border-glow: rgba(255, 94, 58, 0.35);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color-scheme: dark;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
  position: relative;
  min-height: 100vh;
  selection-background-color: var(--primary-glow);
  selection-color: #000;
}

img, svg {
  max-width: 100%;
  height: auto;
}

::selection {
  background: rgba(var(--accent-glow-rgb), 0.35);
  color: #fff;
}

/* WebGL Background Canvas */
#webgl-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  transition: opacity 1s ease;
}

/* Enable pointer events on 3D canvas only when hovering specific 3D interaction zones */
.interactive-3d-zone {
  pointer-events: auto !important;
}

/* Ambient Background Noise & Vignette */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 2;
  background: 
    radial-gradient(circle at 15% 20%, rgba(var(--accent-glow-rgb), 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(121, 40, 202, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(5, 5, 10, 0.3) 0%, rgba(5, 5, 10, 0.95) 100%);
}

.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 2;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Custom Cursor */
.custom-cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--primary-glow);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background-color 0.2s;
  box-shadow: 0 0 12px var(--primary-glow);
}

.custom-cursor-ring {
  position: fixed;
  width: 38px;
  height: 38px;
  border: 1.5px solid rgba(var(--accent-glow-rgb), 0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease-out, width 0.3s, height 0.3s, border-color 0.3s;
}

body:hover .custom-cursor-dot,
body:hover .custom-cursor-ring {
  opacity: 1;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-glow);
  box-shadow: 0 0 10px var(--primary-glow);
}

/* Layout container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 3;
}

/* ==========================================================================
   NAVBAR
   ========================================================================== */
.navbar-container {
  position: fixed;
  top: 20px;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  justify-content: center;
  pointer-events: none;
  padding: 0 20px;
}

.navbar {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 10px 22px;
  background: var(--bg-glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(var(--accent-glow-rgb), 0.08);
  transition: var(--transition-normal);
}

.navbar:hover {
  border-color: var(--border-glow);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 1px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-cube {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 6px;
  display: grid;
  place-items: center;
  box-shadow: 0 0 12px var(--primary-glow);
  animation: rotateCube 8s linear infinite;
}

@keyframes rotateCube {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.brand-dot {
  width: 8px;
  height: 8px;
  background: #fff;
  border-radius: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 6px 4px;
  transition: var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-glow);
  transform: translateX(-50%);
  transition: var(--transition-normal);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--primary-glow);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

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

.nav-controls {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-icon-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.nav-icon-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--primary-glow);
  border-color: var(--primary-glow);
  box-shadow: 0 0 10px rgba(var(--accent-glow-rgb), 0.3);
}

.btn-hire {
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #fff;
  border: none;
  cursor: pointer;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(var(--accent-glow-rgb), 0.3);
  transition: var(--transition-normal);
}

.btn-hire:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(var(--accent-glow-rgb), 0.5);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.4rem;
  cursor: pointer;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 100px;
  padding-bottom: 60px;
  z-index: 3;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 40px;
  width: 100%;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  width: fit-content;
}

.radar-pulse {
  width: 8px;
  height: 8px;
  background: var(--accent-emerald);
  border-radius: 50%;
  position: relative;
}

.radar-pulse::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--accent-emerald);
  border-radius: 50%;
  animation: pulseRadar 2s infinite;
}

@keyframes pulseRadar {
  0% { transform: scale(0.5); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 10%, var(--primary-glow) 60%, var(--secondary-glow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  text-shadow: 0 0 30px rgba(var(--accent-glow-rgb), 0.25);
}

.hero-typewriter {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--primary-glow);
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
}

.typewriter-cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background-color: var(--primary-glow);
  animation: blinkCursor 0.8s infinite;
}

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

.hero-description {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 540px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(var(--accent-glow-rgb), 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: 0.5s;
}

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

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(var(--accent-glow-rgb), 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--border-light);
  backdrop-filter: blur(12px);
  cursor: pointer;
  transition: var(--transition-normal);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--primary-glow);
  transform: translateY(-3px);
  box-shadow: 0 5px 20px rgba(var(--accent-glow-rgb), 0.2);
}

/* 3D Hero Interactive Box */
.hero-3d-interactive-card {
  position: relative;
  width: 100%;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-3d-hud {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  z-index: 5;
  animation: floatHud 6s ease-in-out infinite;
}

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

.hud-item {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.hud-val {
  color: var(--primary-glow);
  font-weight: bold;
}

.interactive-drag-prompt {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: 8px 18px;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  pointer-events: none;
  backdrop-filter: blur(8px);
}

.drag-icon-rotate {
  animation: rotateSpin 4s linear infinite;
}

@keyframes rotateSpin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 3D Lab Controller Bar (Interactive Playground) */
.scene-lab-panel {
  margin-top: 30px;
  background: var(--bg-glass-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.lab-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.lab-title span {
  color: var(--primary-glow);
}

.lab-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.lab-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: var(--transition-fast);
}

.lab-btn.active, .lab-btn:hover {
  background: rgba(var(--accent-glow-rgb), 0.15);
  border-color: var(--primary-glow);
  color: var(--text-primary);
  box-shadow: 0 0 10px rgba(var(--accent-glow-rgb), 0.3);
}

.lab-theme-dots {
  display: flex;
  gap: 8px;
  align-items: center;
}

.theme-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition-fast);
}

.theme-dot.active {
  border-color: #fff;
  transform: scale(1.2);
  box-shadow: 0 0 10px var(--primary-glow);
}

.dot-cyber { background: linear-gradient(135deg, #00f2fe, #ff0080); }
.dot-matrix { background: linear-gradient(135deg, #00ff87, #60efff); }
.dot-violet { background: linear-gradient(135deg, #b000ff, #00f0ff); }
.dot-solar { background: linear-gradient(135deg, #ff5e3a, #ff9500); }

/* ==========================================================================
   SECTION COMMON STYLES
   ========================================================================== */
section {
  padding: 100px 0;
  position: relative;
  z-index: 3;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary-glow);
  background: rgba(var(--accent-glow-rgb), 0.1);
  border: 1px solid rgba(var(--accent-glow-rgb), 0.25);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 1px;
  text-transform: uppercase;
  display: inline-block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -1px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ==========================================================================
   ABOUT SECTION & 3D TERMINAL
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.terminal-window {
  background: #080812;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(var(--accent-glow-rgb), 0.05);
  overflow: hidden;
  transform-style: preserve-3d;
  transition: transform 0.4s ease;
}

.terminal-header {
  background: rgba(255, 255, 255, 0.04);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  color: #cfd3ec;
}

.t-prompt { color: var(--accent-emerald); }
.t-cmd { color: var(--text-primary); font-weight: bold; }
.t-comment { color: var(--text-muted); }
.t-key { color: var(--primary-glow); }
.t-string { color: #f5a623; }

/* 3D Hologram Profile Card */
.holo-profile-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  backdrop-filter: blur(16px);
  transform-style: preserve-3d;
}

.holo-profile-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, var(--border-glow), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.profile-avatar-box {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  position: relative;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  padding: 3px;
  box-shadow: 0 0 25px rgba(var(--accent-glow-rgb), 0.35);
}

.avatar-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: #0d0d1a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.8rem;
  color: #fff;
}

.holo-bio-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.holo-bio-role {
  color: var(--primary-glow);
  font-size: 0.95rem;
  font-family: var(--font-mono);
  margin-bottom: 16px;
}

.holo-bio-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

/* Stats Counter Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.stat-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px 18px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: var(--transition-normal);
  transform-style: preserve-3d;
}

.stat-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(var(--accent-glow-rgb), 0.15);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-number span {
  color: var(--primary-glow);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ==========================================================================
   SKILLS & 3D TECH STACK
   ========================================================================== */
.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.skill-category-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(16px);
  transition: var(--transition-normal);
  transform-style: preserve-3d;
  position: relative;
  overflow: hidden;
}

.skill-category-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 25px rgba(var(--accent-glow-rgb), 0.15);
}

.category-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.category-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(var(--accent-glow-rgb), 0.1);
  border: 1px solid rgba(var(--accent-glow-rgb), 0.25);
  display: grid;
  place-items: center;
  color: var(--primary-glow);
  font-size: 1.2rem;
}

.category-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.skill-name {
  color: var(--text-primary);
  font-weight: 500;
}

.skill-percentage {
  color: var(--primary-glow);
  font-family: var(--font-mono);
}

.skill-bar-bg {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 3px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 3px;
  width: 0%;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 8px var(--primary-glow);
}

/* ==========================================================================
   PROJECTS SECTION (3D TILT CARDS)
   ========================================================================== */
.project-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn.active, .filter-btn:hover {
  background: rgba(var(--accent-glow-rgb), 0.15);
  border-color: var(--primary-glow);
  color: #fff;
  box-shadow: 0 0 15px rgba(var(--accent-glow-rgb), 0.25);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 32px;
}

/* 3D Tilt Card Base */
.project-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  backdrop-filter: blur(14px);
  transform-style: preserve-3d;
  perspective: 1000px;
  cursor: pointer;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(var(--accent-glow-rgb), 0.2);
}

.project-thumbnail {
  position: relative;
  height: 220px;
  width: 100%;
  overflow: hidden;
  background: #080812;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-canvas-preview {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.5s ease;
}

.project-card:hover .project-canvas-preview {
  transform: scale(1.06);
}

.project-badge-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-light);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--primary-glow);
  z-index: 2;
}

.project-links-overlay {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 8px;
  z-index: 2;
}

.card-link-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-light);
  color: #fff;
  display: grid;
  place-items: center;
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition-fast);
}

.card-link-icon:hover {
  background: var(--primary-glow);
  color: #000;
  transform: scale(1.1);
  box-shadow: 0 0 12px var(--primary-glow);
}

.project-details {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transform: translateZ(30px);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  transition: color 0.3s;
}

.project-card:hover .project-title {
  color: var(--primary-glow);
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.tech-tag {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  padding: 3px 10px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.tech-tag:hover {
  color: var(--primary-glow);
  border-color: rgba(var(--accent-glow-rgb), 0.3);
}

/* Card Glare effect */
.card-glare {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 3;
}

.project-card:hover .card-glare {
  opacity: 1;
}

/* ==========================================================================
   EXPERIENCE / TIMELINE
   ========================================================================== */
.timeline-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline-container::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--primary-glow), var(--secondary-glow), transparent);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: 50px;
  width: 50%;
}

.timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 40px;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 40px;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 20px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--primary-glow);
  box-shadow: 0 0 12px var(--primary-glow);
  z-index: 2;
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -8px;
}

.timeline-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  backdrop-filter: blur(12px);
  transition: var(--transition-normal);
  transform-style: preserve-3d;
}

.timeline-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(var(--accent-glow-rgb), 0.2);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary-glow);
  margin-bottom: 6px;
}

.timeline-role {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.timeline-company {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.timeline-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ==========================================================================
   CALL TO ACTION / 3D BANNER
   ========================================================================== */
.cta-banner {
  background: linear-gradient(135deg, rgba(var(--accent-glow-rgb), 0.1), rgba(121, 40, 202, 0.15));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(16px);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(var(--accent-glow-rgb), 0.15) 0%, transparent 60%);
  animation: rotateGlow 15s linear infinite;
  pointer-events: none;
}

@keyframes rotateGlow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
}

.contact-info-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 30px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.contact-info-item:hover {
  color: var(--primary-glow);
  transform: translateX(4px);
}

.contact-icon-bubble {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  display: grid;
  place-items: center;
  color: var(--primary-glow);
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  display: grid;
  place-items: center;
  text-decoration: none;
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.social-btn:hover {
  background: rgba(var(--accent-glow-rgb), 0.15);
  border-color: var(--primary-glow);
  color: var(--primary-glow);
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 0 15px rgba(var(--accent-glow-rgb), 0.3);
}

.contact-form-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(14px);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.form-input, .form-textarea {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  outline: none;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--primary-glow);
  box-shadow: 0 0 15px rgba(var(--accent-glow-rgb), 0.25);
  background: rgba(0, 0, 0, 0.6);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-light);
  background: #030307;
  position: relative;
  z-index: 3;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-status-line {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.status-dot-active {
  width: 6px;
  height: 6px;
  background: var(--accent-emerald);
  border-radius: 50%;
  display: inline-block;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.back-to-top-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.back-to-top-btn:hover {
  background: var(--primary-glow);
  color: #000;
  border-color: var(--primary-glow);
  transform: translateY(-3px);
  box-shadow: 0 0 15px var(--primary-glow);
}

/* ==========================================================================
   TOAST NOTIFICATION
   ========================================================================== */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #0f1026;
  border: 1px solid var(--primary-glow);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 20px rgba(var(--accent-glow-rgb), 0.3);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  color: #fff;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10000;
  transform: translateY(100px);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
}

.toast-notice.show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   RESPONSIVENESS
   ========================================================================== */
@media (max-width: 1100px) {
  .navbar {
    gap: 18px;
  }
  .nav-links {
    gap: 14px;
  }
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    align-items: center;
  }
  .hero-status-pill {
    margin: 0 auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-3d-interactive-card {
    height: 380px;
  }
  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .timeline-container::before {
    left: 20px;
  }
  .timeline-item {
    left: 0 !important;
    width: 100%;
    padding-left: 50px !important;
    padding-right: 0 !important;
    text-align: left !important;
  }
  .timeline-dot {
    left: 12px !important;
    right: auto !important;
  }
}

@media (max-width: 768px) {
  .navbar-container {
    top: 14px;
    padding: 0 12px;
  }

  .navbar {
    width: 100%;
    max-width: 540px;
    padding: 10px 14px;
    gap: 12px;
  }

  .nav-links {
    display: none;
    width: min(220px, calc(100vw - 40px));
    gap: 6px;
  }

  .nav-links.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 74px;
    right: 0;
    background: rgba(10, 10, 20, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 18px 16px;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
  }

  .nav-links.is-open .nav-link {
    padding: 8px 0;
    font-size: 0.85rem;
  }

  .mobile-menu-btn {
    display: block;
  }

  .nav-controls {
    gap: 10px;
  }

  .btn-hire {
    display: none;
  }

  .hero-section {
    padding-top: 110px;
  }

  .hero-grid {
    gap: 26px;
  }

  .hero-content {
    gap: 18px;
  }

  .hero-title {
    font-size: clamp(2.4rem, 11vw, 4rem);
    letter-spacing: -1px;
  }

  .hero-description {
    max-width: 100%;
    font-size: 1rem;
  }

  .hero-actions {
    width: 100%;
    justify-content: center;
  }

  .btn-primary,
  .btn-secondary {
    flex: 1 1 100%;
    justify-content: center;
  }

  .scene-lab-panel {
    flex-direction: column;
    align-items: stretch;
    padding: 14px 16px;
  }

  .lab-controls {
    justify-content: center;
  }

  .lab-btn {
    flex: 1 1 calc(50% - 8px);
    text-align: center;
  }

  .floating-3d-hud {
    left: 10px;
    right: 10px;
    top: 10px;
    font-size: 0.68rem;
  }

  .hero-3d-interactive-card {
    height: 330px;
  }

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

  .custom-cursor-dot,
  .custom-cursor-ring {
    display: none;
  }
}

@media (max-width: 540px) {
  .container {
    padding: 0 16px;
  }

  .navbar {
    width: calc(100% - 8px);
    padding: 10px 12px;
  }

  .nav-brand {
    font-size: 1rem;
  }

  .hero-status-pill {
    font-size: 0.68rem;
    padding: 6px 12px;
  }

  .hero-typewriter {
    font-size: 1rem;
  }

  .hero-description {
    font-size: 0.96rem;
  }

  .section-title {
    font-size: clamp(1.8rem, 9vw, 2.4rem);
  }

  .terminal-body {
    padding: 18px;
    font-size: 0.75rem;
  }

  .profile-avatar-box {
    width: 88px;
    height: 88px;
  }

  .holo-profile-card {
    padding: 24px 18px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 420px) {
  .navbar-container {
    top: 12px;
  }

  .nav-controls {
    width: 100%;
    justify-content: space-between;
  }

  .nav-icon-btn {
    width: 34px;
    height: 34px;
  }

  .hero-section {
    padding-top: 120px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

  .hero-3d-interactive-card {
    height: 300px;
  }

  .floating-3d-hud {
    font-size: 0.6rem;
    padding: 8px 10px;
  }

  .interactive-drag-prompt {
    font-size: 0.68rem;
    padding: 7px 10px;
  }

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