/* -------------------------------------------------------------
   DESIGN TOKENS & SYSTEM VARIABLES
------------------------------------------------------------- */
:root {
  --color-bg: #030305;
  --color-lime: #c1ff12;
  --color-magenta: #f76cfe;
  --color-cyan: #00f0ff;
  --color-text-primary: #ffffff;
  --color-text-secondary: rgba(255, 255, 255, 0.85); /* Boosted for better readability */
  --color-text-muted: rgba(255, 255, 255, 0.45); /* Boosted for high contrast */
  
  --color-card-bg: rgba(6, 6, 9, 0.72); /* Darker panel fill to block background stars */
  --color-card-border: rgba(255, 255, 255, 0.09);
  --color-card-border-hover: rgba(193, 255, 18, 0.35);
  
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Space Mono', monospace;
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

/* Light mode overrides for CSS design tokens */
:root[data-theme="light"] {
  --color-bg: #f5f6fa;
  --color-text-primary: #0f0f15;
  --color-text-secondary: rgba(15, 15, 21, 0.82);
  --color-text-muted: rgba(15, 15, 21, 0.52);
  
  --color-card-bg: rgba(255, 255, 255, 0.45);
  --color-card-border: rgba(15, 15, 21, 0.08);
  --color-card-border-hover: rgba(168, 30, 191, 0.45); /* Darker magenta */
  
  --color-lime: #6ba400; /* Darker lime for contrast in light mode */
  --color-magenta: #a81ebf; /* Darker magenta for contrast */
  --color-cyan: #008fa3; /* Darker cyan */
}

/* Global shadow and glow contrast for glass panels */
.skills-card, .project-card, .timeline-card, .contact-form {
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.65), inset 0 1px 1px rgba(255, 255, 255, 0.04);
  transition: border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, background 0.1s ease;
  background: 
    radial-gradient(600px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(193, 255, 18, 0.05), transparent 50%),
    var(--color-card-bg);
  position: relative;
  will-change: transform, opacity;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
}
.skills-card:hover, .project-card:hover, .timeline-card:hover, .contact-form:focus-within {
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8), 0 0 25px rgba(193, 255, 18, 0.05), inset 0 1px 1px rgba(255, 255, 255, 0.08);
}

/* Premium Web3 HUD Corner Brackets */
.project-card::before, .timeline-card::before, .contact-form::before, .skills-card::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  width: 10px;
  height: 10px;
  border-top: 1.5px solid var(--color-lime);
  border-left: 1.5px solid var(--color-lime);
  pointer-events: none;
  opacity: 0.25;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 3;
}

.project-card::after, .timeline-card::after, .contact-form::after, .skills-card::after {
  content: '';
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 10px;
  height: 10px;
  border-bottom: 1.5px solid var(--color-magenta);
  border-right: 1.5px solid var(--color-magenta);
  pointer-events: none;
  opacity: 0.25;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 3;
}

.project-card:hover::before, .timeline-card:hover::before, .contact-form:focus-within::before, .skills-card:hover::before {
  opacity: 1;
  top: 8px;
  left: 8px;
  filter: drop-shadow(0 0 5px var(--color-lime));
}

.project-card:hover::after, .timeline-card:hover::after, .contact-form:focus-within::after, .skills-card:hover::after {
  opacity: 1;
  bottom: 8px;
  right: 8px;
  filter: drop-shadow(0 0 5px var(--color-magenta));
}

/* -------------------------------------------------------------
   BASE RESET & LAYOUT
------------------------------------------------------------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

html {
  scroll-behavior: smooth;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Custom Premium Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  transition: var(--transition-fast);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-lime);
  box-shadow: 0 0 8px var(--color-lime);
}

:root[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: rgba(15, 15, 21, 0.15);
}
:root[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background: var(--color-magenta);
}

/* Hide default cursor on desktop when using custom cursor */
@media (min-width: 1024px) {
  html, body, a, button, input, textarea {
    cursor: none !important;
  }
}

a {
  color: inherit;
  text-decoration: none;
}

/* Typography elements */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

p {
  line-height: 1.8;
  color: var(--color-text-secondary);
  font-size: 1.15rem;
}

.space-mono {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
}

/* -------------------------------------------------------------
   CUSTOM MOUSE CURSOR
------------------------------------------------------------- */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 1000000; /* Raised z-index to show above preloader (99999) */
  display: none; /* Shown dynamically in JS on desktop */
}

.cursor-dot {
  position: fixed;
  width: 6px;
  height: 6px;
  background-color: var(--color-lime);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background-color 0.3s;
  pointer-events: none;
}

.cursor-circle {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: width 0.2s, height 0.2s, border-color 0.3s, background-color 0.3s;
}

/* Hover States for cursor */
.custom-cursor.hovered .cursor-dot {
  width: 10px;
  height: 10px;
  background-color: var(--color-magenta);
}

.custom-cursor.hovered .cursor-circle {
  width: 48px;
  height: 48px;
  border-color: var(--color-magenta);
  background-color: rgba(247, 108, 254, 0.05);
}

.custom-cursor.clicked .cursor-dot {
  transform: translate(-50%, -50%) scale(0.6);
}

.custom-cursor.clicked .cursor-circle {
  transform: translate(-50%, -50%) scale(0.85);
  background-color: rgba(255, 255, 255, 0.1);
}

/* -------------------------------------------------------------
   BACKGROUND BLUEPRINT GRID & GLOWS
   ------------------------------------------------------------- */
#webgl-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1; /* Behind grid-overlay (2) and body container (5) */
  pointer-events: none;
  will-change: transform;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  background-size: 80px 80px;
  background-image: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M 80 0 L 0 0 0 80' fill='none' stroke='rgba(255, 255, 255, 0.02)' stroke-width='1'/%3E%3Cpath d='M 0 0 L 10 0 M 0 0 L 0 10 M 80 80 L 70 80 M 80 80 L 80 70' fill='none' stroke='rgba(193, 255, 18, 0.15)' stroke-width='1'/%3E%3Ccircle cx='0' cy='0' r='1.5' fill='rgba(193, 255, 18, 0.5)'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 2;
  opacity: 0.75;
  animation: gridMove 60s linear infinite;
}

@keyframes gridMove {
  0% { background-position: 0 0; }
  100% { background-position: 80px 80px; }
}

/* Floating Background Glow Blobs */
.glow-blob {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
  opacity: 0.26; /* Boosted for vibrant blending depth */
}

.glow-blob-1 {
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(193, 255, 18, 0.45) 0%, rgba(193, 255, 18, 0.05) 55%, transparent 70%);
  filter: blur(140px);
  /* Follow cursor with smooth delay */
  top: var(--glow-y1, 20%);
  left: var(--glow-x1, 20%);
  transform: translate(-50%, -50%);
}

.glow-blob-2 {
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(247, 108, 254, 0.38) 0%, rgba(247, 108, 254, 0.05) 55%, transparent 70%);
  filter: blur(160px);
  /* Drifts slowly in the opposite direction */
  top: var(--glow-y2, 70%);
  left: var(--glow-x2, 70%);
  transform: translate(-50%, -50%);
}

.glow-blob-3 {
  width: 850px;
  height: 850px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.35) 0%, rgba(0, 240, 255, 0.04) 55%, transparent 70%);
  filter: blur(150px);
  top: var(--glow-y3, 50%);
  left: var(--glow-x3, 50%);
  transform: translate(-50%, -50%);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(247, 108, 254, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(193, 255, 18, 0.03) 0%, transparent 45%);
  pointer-events: none;
  z-index: 0;
}

.scanlines {
  position: fixed;
  inset: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%);
  background-size: 100% 4px;
  z-index: 999;
  pointer-events: none;
  opacity: 0.3;
}

/* Glow effects */
.glow-lime {
  color: var(--color-lime);
  text-shadow: 0 0 12px rgba(193, 255, 18, 0.4);
}

.glow-magenta {
  color: var(--color-magenta);
  text-shadow: 0 0 12px rgba(247, 108, 254, 0.4);
}

.glow-cyan {
  color: var(--color-cyan);
  text-shadow: 0 0 12px rgba(0, 240, 255, 0.4);
}

.glow-text {
  text-shadow: 0 0 8px currentColor;
}

/* -------------------------------------------------------------
   PRELOADER SCREEN
------------------------------------------------------------- */
.preloader {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg);
  z-index: 99999;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 1.2s cubic-bezier(0.85, 0, 0.15, 1), visibility 1.2s;
}

.preloader.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-grid {
  position: absolute;
  inset: 0;
  background-size: 60px 60px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  opacity: 0.5;
}

.preloader-content {
  position: relative;
  z-index: 10;
  width: 90%;
  max-width: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
}

.preloader-logo-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.preloader-middle {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.preloader-status {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  color: var(--color-lime);
  text-shadow: 0 0 10px rgba(193, 255, 18, 0.4);
  margin-bottom: 1.5rem;
  text-align: center;
  height: 25px; /* Fixed height to prevent vertical shifting during scramble */
  text-transform: uppercase;
}

.preloader-status.decrypting {
  color: var(--color-text-primary);
  text-shadow: 0 0 10px #ffffff;
}

.preloader-bar-outer {
  width: 100%;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.1);
  overflow: hidden;
  position: relative;
}

.preloader-bar-inner {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-magenta), var(--color-lime));
  transition: width 0.1s linear;
  box-shadow: 0 0 10px rgba(193, 255, 18, 0.5);
}

.preloader-interactive {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  height: 60px;
}

.enter-btn {
  background: none;
  border: 1px solid var(--color-lime);
  color: var(--color-lime);
  padding: 0.8rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  border-radius: 4px;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease, background 0.3s, color 0.3s;
}

.enter-btn.btn-visible {
  opacity: 1;
  transform: translateY(0);
}

.enter-btn:hover {
  background-color: var(--color-lime);
  color: var(--color-bg);
  box-shadow: 0 0 20px rgba(193, 255, 18, 0.4);
}

.enter-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  opacity: 0;
  transition: opacity 0.5s ease;
}

.enter-sub.visible {
  opacity: 1;
}

/* -------------------------------------------------------------
   HEADER / NAVIGATION
------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  padding: 0 4%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

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

.logo-svg {
  width: 32px;
  height: 32px;
  color: var(--color-text-primary);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), color 0.3s ease, filter 0.3s ease;
  overflow: visible;
  display: block;
}

.logo-svg:hover {
  transform: rotate(90deg) scale(1.1);
  color: var(--color-lime);
  filter: drop-shadow(0 0 10px rgba(193, 255, 18, 0.6));
}

.logo-svg .logo-outer-circle,
.logo-svg .logo-inner-circle,
.logo-svg .logo-glyph {
  transform-origin: center center;
  transition: stroke 0.3s ease, fill 0.3s ease, opacity 0.3s ease;
}

.logo-svg:hover .logo-inner-circle {
  animation: logoSpin 4s linear infinite;
}

.preloader-logo-svg {
  width: 90px;
  height: 90px;
  color: var(--color-lime);
  filter: drop-shadow(0 0 20px rgba(193, 255, 18, 0.4));
  animation: logoPulse 2s infinite ease-in-out;
}

.preloader-logo-svg .logo-inner-circle {
  animation: logoSpin 12s linear infinite;
}

.preloader-logo-svg:hover {
  transform: none;
}

.nav {
  display: none; /* Shown on desktop */
}

.nav-list {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--color-lime);
  transition: var(--transition-fast);
}

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

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

.header-controls {
  display: flex;
  align-items: center;
  gap: 2rem;
}

/* Language selector */
.lang-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  display: flex;
  gap: 0.2rem;
  cursor: pointer;
}

.lang-btn span {
  transition: var(--transition-fast);
}

.lang-active {
  color: var(--color-text-primary);
  text-shadow: 0 0 5px rgba(255, 255, 255, 0.25);
}

:root[data-theme="light"] .lang-active {
  text-shadow: none;
}

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



/* -------------------------------------------------------------
   SIDEBARS & OVERLAY INFOS
------------------------------------------------------------- */
.sidebar-info {
  position: fixed;
  bottom: 40px; /* Aligned with scroll indicator bottom */
  z-index: 10;
  display: none; /* Shown on desktop */
  flex-direction: column;
  gap: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 1;
  visibility: visible;
}

.left-side {
  left: 4%;
}

.right-side {
  right: 4%;
  align-items: flex-end;
}

.sidebar-item {
  display: flex;
  gap: 0.5rem;
}

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

.tech-val {
  color: var(--color-text-primary);
}

/* Scroll down element */
.scroll-down-indicator {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 1;
  visibility: visible;
}

/* Hidden States to avoid clashing with other layout components */
.sidebar-info.hidden,
.scroll-down-indicator.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-lime), transparent);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 20px;
  background: var(--color-lime);
  animation: scrollLine 2.5s cubic-bezier(0.15, 0.85, 0.45, 1) infinite;
}

/* -------------------------------------------------------------
   CONTAINER & LAYOUT
------------------------------------------------------------- */
.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 4%;
  position: relative;
  z-index: 5;
}

.section {
  min-height: 100vh;
  padding: 120px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.section-title-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.section-hud-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  font-weight: 500;
  opacity: 0.65;
}

.section-num {
  font-size: 0.9rem;
  color: var(--color-lime);
}

.section-title {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
}

.section-header-line {
  flex-grow: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line-color, var(--color-lime)), transparent);
  position: relative;
  opacity: 0.45;
  transition: opacity 0.4s ease;
}

.section-header-line::before {
  content: '';
  position: absolute;
  left: 0;
  top: -2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--line-color, var(--color-lime));
  box-shadow: 0 0 8px var(--line-color, var(--color-lime));
  transition: box-shadow 0.4s ease, background 0.4s ease;
}

/* Section specific theme accent colors */
.about-section { --line-color: var(--color-lime); }
.projects-section { --line-color: var(--color-magenta); }
.experience-section { --line-color: var(--color-cyan); }
.contact-section { --line-color: var(--color-lime); }

.section-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: 3rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2.2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  border-radius: 4px;
  transition: var(--transition-smooth);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--color-lime);
  color: var(--color-bg);
  border: 1px solid var(--color-lime);
  font-weight: 600;
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--color-lime);
  box-shadow: 0 0 20px rgba(193, 255, 18, 0.35);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
  border-color: var(--color-magenta);
  color: var(--color-magenta);
  box-shadow: 0 0 20px rgba(247, 108, 254, 0.25);
}

/* -------------------------------------------------------------
   SECTION 1: HERO
------------------------------------------------------------- */
.hero-section {
  position: relative;
  overflow: visible;
  justify-content: space-between;
  padding-top: 160px;
  padding-bottom: 80px;
}

.hero-bg-container {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  max-width: 650px;
  height: 650px;
  z-index: -1;
  pointer-events: none;
}



.hero-content {
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-meta {
  color: var(--color-magenta);
  font-size: 0.8rem;
}

.hero-title {
  font-size: 4.5rem;
  line-height: 0.95;
  font-weight: 800;
}

.hero-title-line {
  display: block;
}

.hero-title-line.accent-lime {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-lime);
}

.hero-desc {
  font-size: 1.25rem;
  max-width: 580px;
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  padding-top: 2.5rem;
  margin-top: auto;
  flex-wrap: wrap;
}

.stat-box {
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 8px;
  padding: 1rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 150px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, background-color 0.4s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.stat-box:hover {
  transform: translateY(-4px);
  border-color: rgba(193, 255, 18, 0.15);
  background-color: rgba(255, 255, 255, 0.03);
}

/* Accent hover border glows matching stat colors */
.stat-box:hover:has(.glow-lime) { border-color: rgba(193, 255, 18, 0.2); }
.stat-box:hover:has(.glow-magenta) { border-color: rgba(247, 108, 254, 0.2); }
.stat-box:hover:has(.glow-cyan) { border-color: rgba(0, 240, 255, 0.2); }

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
}

.stat-lbl {
  font-size: 0.65rem;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* Light mode overrides for stats boxes */
:root[data-theme="light"] .stat-box {
  background: rgba(15, 15, 21, 0.02);
  border-color: rgba(15, 15, 21, 0.05);
  box-shadow: 0 10px 30px rgba(15, 15, 21, 0.02);
}
:root[data-theme="light"] .stat-box:hover {
  background-color: rgba(15, 15, 21, 0.04);
  border-color: rgba(168, 30, 191, 0.2); /* Soft magenta glow on hover in light mode */
}

/* -------------------------------------------------------------
   SECTION 2: ABOUT
------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
}

.about-left {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about-heading {
  font-size: 2.4rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text-primary);
}

.about-text {
  font-size: 1.22rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.skills-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 12px;
  padding: 1.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
}



.skills-title {
  color: var(--color-text-primary);
  margin-bottom: 2rem;
}

.skills-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

/* Redesigned Skills Tags Layout */
.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  transition: border-color 0.3s ease, background-color 0.3s ease, color 0.3s ease, transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  will-change: transform, box-shadow, border-color;
}

.skill-tag:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-text-primary);
  transform: translateY(-3px) scale(1.03);
}

.skill-tag.accent-lime:hover {
  border-color: var(--color-lime);
  box-shadow: 0 0 15px rgba(193, 255, 18, 0.2);
}

.skill-tag.accent-magenta:hover {
  border-color: var(--color-magenta);
  box-shadow: 0 0 15px rgba(247, 108, 254, 0.2);
}

.tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-tag:hover .tag-dot {
  transform: scale(1.3);
}

.tag-dot.lime {
  background-color: var(--color-lime);
  box-shadow: 0 0 6px var(--color-lime);
}

.tag-dot.magenta {
  background-color: var(--color-magenta);
  box-shadow: 0 0 6px var(--color-magenta);
}

.skills-extra {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 1.5rem;
}

.diag-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}
:root[data-theme="light"] .diag-item {
  border-bottom: 1px solid rgba(15, 15, 21, 0.06);
}

.extra-title {
  font-size: 0.7rem;
  color: var(--color-lime);
  margin-bottom: 0.5rem;
}

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

/* -------------------------------------------------------------
   SECTION 3: PROJECTS (ECOSYSTEM)
------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.project-card {
  position: relative;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 12px;
  padding: 1.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
  overflow: hidden;
  transition: border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
}

.project-card:hover {
  border-color: var(--color-card-border-hover);
}

.project-shine {
  display: none;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

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

.project-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.project-body {
  margin-bottom: 2rem;
}

.project-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.8rem;
  letter-spacing: 0.02em;
}

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

.project-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 1.25rem;
  margin-top: auto;
}

.project-tags {
  display: flex;
  gap: 1rem;
  font-size: 0.7rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.project-link {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--color-text-primary);
  transition: var(--transition-fast);
}

.link-svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s;
}

.project-card:hover .project-link {
  background-color: var(--color-lime);
  border-color: var(--color-lime);
  color: var(--color-bg);
  box-shadow: 0 0 12px rgba(193, 255, 18, 0.4);
}

.project-card:hover .link-svg {
  transform: translate(2px, -2px);
}

/* -------------------------------------------------------------
   SECTION 4: TIMELINE (EXPERIENCE)
------------------------------------------------------------- */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline-line {
  position: absolute;
  top: 0;
  left: 20px;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.1) 10%, rgba(255, 255, 255, 0.1) 90%, transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 3.5rem;
  padding-left: 50px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot-wrapper {
  position: absolute;
  left: 14px;
  top: 12px;
  width: 13px;
  height: 13px;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
}

.timeline-dot {
  width: 9px;
  height: 9px;
  background-color: var(--color-bg);
  border: 2px solid var(--color-text-muted);
  border-radius: 50%;
  transition: var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
}

.timeline-item:hover .timeline-dot.glow-lime {
  border-color: var(--color-lime);
  background-color: var(--color-lime);
  box-shadow: 0 0 10px var(--color-lime);
}

.timeline-item:hover .timeline-dot.glow-magenta {
  border-color: var(--color-magenta);
  background-color: var(--color-magenta);
  box-shadow: 0 0 10px var(--color-magenta);
}

.timeline-item:hover .timeline-dot.glow-cyan {
  border-color: var(--color-cyan);
  background-color: var(--color-cyan);
  box-shadow: 0 0 10px var(--color-cyan);
}

.timeline-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 8px;
  padding: 1.25rem;
  transition: border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
  text-align: left; /* Ensure list content is highly readable on both left/right layout columns */
}

.timeline-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

.timeline-details {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0;
}

.timeline-details li {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  position: relative;
  padding-left: 1.25rem;
  line-height: 1.6;
}

.timeline-details li::before {
  content: '▪';
  position: absolute;
  left: 0;
  top: -1px;
  color: var(--color-lime);
  font-size: 0.8rem;
  text-shadow: 0 0 4px var(--color-lime);
}

.timeline-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.timeline-year {
  color: var(--color-lime);
}

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

.timeline-title {
  font-size: 1.65rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
}

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

/* -------------------------------------------------------------
   SECTION 5: CONTACT & LINK
------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4.5rem;
}

.contact-left {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-callout {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.25;
}

.contact-description {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 520px;
}

.contact-details {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.detail-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.detail-label {
  color: var(--color-text-muted);
  width: 130px;
}

.detail-value {
  color: var(--color-lime);
  font-weight: 600;
  transition: var(--transition-fast);
}

.detail-value:hover {
  color: var(--color-text-primary);
  text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

.contact-form {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
}

.input-group {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-group label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  transition: var(--transition-fast);
}

.input-group input, .input-group textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
  padding: 0.6rem 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.input-group input::placeholder, .input-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.15);
}

.input-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background: linear-gradient(90deg, var(--color-lime), var(--color-magenta));
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.input-group input:focus ~ .input-line, .input-group textarea:focus ~ .input-line {
  width: 100%;
}

.input-group input:focus, .input-group textarea:focus {
  border-bottom-color: transparent;
}

.input-group input:focus ~ label, .input-group textarea:focus ~ label {
  color: var(--color-lime);
}

.form-feedback {
  font-size: 0.8rem;
  height: 20px;
}

.form-feedback.success {
  color: var(--color-lime);
}

.form-feedback.error {
  color: var(--color-magenta);
}

/* -------------------------------------------------------------
   FOOTER
------------------------------------------------------------- */
.footer {
  padding-bottom: 60px;
  margin-top: 80px;
}

.footer-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
  margin-bottom: 2.5rem;
}

.footer-content {
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-copyright {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* -------------------------------------------------------------
   RESPONSIVE MEDIA QUERIES (TABLET & DESKTOP)
------------------------------------------------------------- */
@media (min-width: 768px) {
  .skills-card, .project-card, .contact-form {
    padding: 2.5rem;
  }
  
  .timeline-card {
    padding: 2rem;
  }

  .section-title {
    font-size: 3rem;
  }
  
  .hero-title {
    font-size: 7rem;
  }
  
  .about-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 5rem;
  }
  
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
  }
  
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
  

}

@media (min-width: 1024px) {
  .custom-cursor {
    display: block; /* Visible cursor on desktops only */
  }
  
  .nav {
    display: block;
  }
  
  .sidebar-info {
    display: flex;
  }
  
  .hero-title {
    font-size: 8rem;
  }
  
  .section {
    padding: 160px 0;
  }
  
  .timeline-line {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .timeline-item {
    width: 50%;
    padding-left: 0;
    margin-bottom: 4rem;
  }
  
  /* Stagger items left and right */
  .timeline-item:nth-child(even) {
    align-self: flex-end;
    margin-left: 50%;
    padding-left: 40px;
  }
  
  .timeline-item:nth-child(odd) {
    align-self: flex-start;
    padding-right: 40px;
    text-align: right;
  }
  
  .timeline-item:nth-child(odd) .timeline-meta {
    justify-content: flex-end;
    flex-direction: row-reverse;
  }
  
  .timeline-dot-wrapper {
    left: auto;
    right: -7px;
  }
  
  .timeline-item:nth-child(even) .timeline-dot-wrapper {
    left: -7px;
    right: auto;
  }
}

/* -------------------------------------------------------------
   ANIMATION KEYFRAMES
------------------------------------------------------------- */
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(1); opacity: 0.6; }
}

@keyframes logoPulse {
  0% { transform: scale(1); filter: drop-shadow(0 0 12px rgba(193, 255, 18, 0.4)); }
  50% { transform: scale(1.06); filter: drop-shadow(0 0 24px rgba(193, 255, 18, 0.7)); }
  100% { transform: scale(1); filter: drop-shadow(0 0 12px rgba(193, 255, 18, 0.4)); }
}

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

@keyframes bounce {
  0% { height: 4px; }
  100% { height: 16px; }
}

@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  50% { transform: translateY(100%); }
  100% { transform: translateY(100%); }
}

@keyframes scrollLineMobile {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: bottom; }
  95% { transform: scaleY(0); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: top; }
}

/* -------------------------------------------------------------
   TEXT REVEAL & GLITCH EFFECTS
------------------------------------------------------------- */
.hero-title-line {
  display: block;
  overflow: hidden; /* Masking viewport for inner clip reveals */
}

.section-title {
  display: inline-block;
  overflow: hidden; /* Masking viewport for header slide-up */
  vertical-align: bottom;
}

.reveal-clip {
  display: inline-block;
  clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%);
  transform: translateY(102%);
  transition: clip-path 1.4s cubic-bezier(0.16, 1, 0.3, 1), transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: clip-path, transform;
}

.reveal-clip.revealed {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  transform: translateY(0);
}

.reveal-fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-fade-up.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Scramble Text custom colors */
.scramble-char {
  color: var(--color-lime);
  font-family: var(--font-mono);
  font-weight: bold;
  text-shadow: 0 0 6px rgba(193, 255, 18, 0.6);
}

/* -------------------------------------------------------------
   SPLIT CHARACTER SCROLL REVEALS & CARD INNER STAGGERING
------------------------------------------------------------- */
.char-span-wrapper {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}

.char-span {
  display: inline-block;
  transform: translateY(105%);
  opacity: 0;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s ease;
  will-change: transform, opacity;
}

.revealed .char-span {
  transform: translateY(0);
  opacity: 1;
}

.char-span.instant {
  transition: none !important;
  transform: translateY(0) !important;
  opacity: 1 !important;
}

/* Card internal stagger animations */
.project-card .project-category,
.project-card .project-title,
.project-card .project-text,
.project-card .project-footer,
.skills-card .skills-title,
.skills-card .skills-category-group,
.skills-card .skills-extra,
.timeline-card .timeline-meta,
.timeline-card .timeline-title {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card.revealed .project-category { opacity: 1; transform: translateY(0); transition-delay: 0.1s; }
.project-card.revealed .project-title { opacity: 1; transform: translateY(0); transition-delay: 0.2s; }
.project-card.revealed .project-text { opacity: 1; transform: translateY(0); transition-delay: 0.3s; }
.project-card.revealed .project-footer { opacity: 1; transform: translateY(0); transition-delay: 0.4s; }

.skills-card.revealed .skills-title { opacity: 1; transform: translateY(0); transition-delay: 0.1s; }
.skills-card.revealed .skills-category-group { opacity: 1; transform: translateY(0); }
.skills-card.revealed .skills-category-group:nth-of-type(2) { transition-delay: 0.25s; }
.skills-card.revealed .skills-category-group:nth-of-type(3) { transition-delay: 0.4s; }
.skills-card.revealed .skills-category-group:nth-of-type(4) { transition-delay: 0.55s; }
.skills-card.revealed .skills-extra { opacity: 1; transform: translateY(0); transition-delay: 0.7s; }

.timeline-card.revealed .timeline-meta { opacity: 1; transform: translateY(0); transition-delay: 0.1s; }
.timeline-card.revealed .timeline-title { opacity: 1; transform: translateY(0); transition-delay: 0.2s; }

/* Timeline list items stagger animation */
.timeline-card .timeline-details li {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.timeline-card.revealed .timeline-details li:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0.3s; }
.timeline-card.revealed .timeline-details li:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 0.4s; }
.timeline-card.revealed .timeline-details li:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 0.5s; }
.timeline-card.revealed .timeline-details li:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 0.6s; }

/* -------------------------------------------------------------
   ABOUT SKILLS 3-COLUMN GRID & DIAGNOSTICS
------------------------------------------------------------- */
.about-skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3.5rem;
  align-items: start; /* Hug content to prevent blank space in shorter cards */
}

@media (min-width: 768px) {
  .about-skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .about-skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.skills-category-group {
  margin-bottom: 1.5rem;
}

.skills-category-group:last-child {
  margin-bottom: 0;
}

.skills-category-title {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.system-diag-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* Scramble letter decrypt styles & 3D folding */
.scramble-char-span {
  display: inline-block;
  transform: rotateX(-90deg) translateY(30px) scale(0.8);
  transform-origin: bottom center;
  opacity: 0;
  transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.6s ease, text-shadow 0.4s ease, color 0.4s ease;
  will-change: transform, opacity;
}

.scramble-char-span.revealed {
  transform: rotateX(0deg) translateY(0) scale(1);
  opacity: 1;
}

.scramble-char-span.decrypting {
  color: var(--color-lime) !important;
  text-shadow: 0 0 10px var(--color-lime), 0 0 20px var(--color-lime);
  font-family: var(--font-mono);
}

.scramble-char-span.decrypted {
  color: var(--color-text-primary);
  text-shadow: none;
}

.accent-lime .scramble-char-span.decrypted {
  color: transparent !important;
  -webkit-text-stroke: 1.5px var(--color-lime);
}

/* Blinking text cursor */
.scramble-cursor {
  display: inline-block;
  color: var(--color-lime);
  text-shadow: 0 0 10px var(--color-lime);
  animation: blinkCursor 0.8s steps(2, start) infinite;
  margin-left: 2px;
  font-size: 1.2em;
  vertical-align: middle;
}
@keyframes blinkCursor {
  to { visibility: hidden; }
}

/* Preloader screen upgrades */
#preloader-matrix-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.04;
}
.preloader-scanline {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, transparent, var(--color-lime), var(--color-magenta), var(--color-cyan), transparent);
  opacity: 0.35;
  pointer-events: none;
  z-index: 3;
  animation: preloaderScan 4.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}
@keyframes preloaderScan {
  0% { transform: translateY(0); }
  50% { transform: translateY(100vh); }
  100% { transform: translateY(0); }
}
.preloader-corner {
  position: absolute;
  font-size: 0.65rem;
  color: var(--color-text-muted);
  opacity: 0.55;
  letter-spacing: 0.15em;
  pointer-events: none;
  z-index: 4;
}
.preloader-corner-tl { top: 30px; left: 4%; }
.preloader-corner-tr { top: 30px; right: 4%; }
.preloader-corner-bl { bottom: 30px; left: 4%; }
.preloader-corner-br { bottom: 30px; right: 4%; }

/* Logo circle stroke drawing loader */
.preloader-logo-svg .logo-outer-circle {
  stroke-dasharray: 264;
  stroke-dashoffset: 264;
  transition: stroke-dashoffset 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hero Neon Divider Line */
.hero-divider-line {
  width: 0%;
  height: 1px;
  background: linear-gradient(90deg, var(--color-lime), var(--color-magenta), transparent);
  box-shadow: 0 0 8px var(--color-lime);
  transition: width 1.8s cubic-bezier(0.16, 1, 0.3, 1);
  margin: 1rem 0 1.5rem 0;
  will-change: width;
}
.hero-divider-line.revealed {
  width: 100%;
}

/* HUD background rotation circles */
.hud-circle {
  position: fixed;
  border: 1px dashed rgba(255, 255, 255, 0.03);
  border-radius: 50%;
  pointer-events: none;
  z-index: 2;
}
.hud-circle-1 {
  width: 400px;
  height: 400px;
  top: 15%;
  right: -100px;
  border-color: rgba(193, 255, 18, 0.04);
  animation: logoSpin 60s linear infinite;
}
.hud-circle-2 {
  width: 600px;
  height: 600px;
  bottom: 10%;
  left: -200px;
  border-color: rgba(247, 108, 254, 0.03);
  animation: logoSpin 95s linear reverse infinite;
}

/* Theme Toggle Button & Animating Icons */
.theme-btn {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}
:root[data-theme="light"] .theme-btn {
  border-color: rgba(15, 15, 21, 0.1);
}
.theme-btn:hover {
  border-color: var(--color-lime);
  color: var(--color-lime);
  box-shadow: 0 0 10px rgba(193, 255, 18, 0.25);
}
.theme-icon {
  width: 18px;
  height: 18px;
  position: absolute;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}
.theme-btn .sun-icon {
  opacity: 0;
  transform: translateY(25px) rotate(45deg);
}
.theme-btn .moon-icon {
  opacity: 1;
  transform: translateY(0) rotate(0deg);
}
:root[data-theme="light"] .theme-btn .sun-icon {
  opacity: 1;
  transform: translateY(0) rotate(0deg);
}
:root[data-theme="light"] .theme-btn .moon-icon {
  opacity: 0;
  transform: translateY(-25px) rotate(-45deg);
}

/* Light mode overrides for specific layouts */
:root[data-theme="light"] body::before {
  background: 
    radial-gradient(circle at 20% 30%, rgba(247, 108, 254, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(193, 255, 18, 0.06) 0%, transparent 45%);
}

:root[data-theme="light"] .grid-overlay {
  background-image: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M 80 0 L 0 0 0 80' fill='none' stroke='rgba(15, 15, 21, 0.03)' stroke-width='1'/%3E%3Cpath d='M 0 0 L 10 0 M 0 0 L 0 10 M 80 80 L 70 80 M 80 80 L 80 70' fill='none' stroke='rgba(107, 164, 0, 0.25)' stroke-width='1'/%3E%3Ccircle cx='0' cy='0' r='1.5' fill='rgba(107, 164, 0, 0.6)'/%3E%3C/svg%3E");
  opacity: 0.95;
}

:root[data-theme="light"] .cursor-circle {
  border-color: rgba(15, 15, 21, 0.3);
}

:root[data-theme="light"] .header {
  border-bottom: 1px solid rgba(15, 15, 21, 0.04);
}

:root[data-theme="light"] .glow-blob {
  opacity: 0.22;
}

:root[data-theme="light"] .glow-blob-1 {
  background: radial-gradient(circle, rgba(107, 164, 0, 0.35) 0%, rgba(107, 164, 0, 0.04) 55%, transparent 70%);
}

:root[data-theme="light"] .glow-blob-2 {
  background: radial-gradient(circle, rgba(168, 30, 191, 0.3) 0%, rgba(168, 30, 191, 0.04) 55%, transparent 70%);
}

:root[data-theme="light"] .glow-blob-3 {
  background: radial-gradient(circle, rgba(0, 143, 163, 0.28) 0%, rgba(0, 143, 163, 0.03) 55%, transparent 70%);
}

:root[data-theme="light"] .hud-circle {
  border-color: rgba(15, 15, 21, 0.04);
}

/* Light mode overrides for structural elements, borders, shadows & inputs */
:root[data-theme="light"] .skills-card,
:root[data-theme="light"] .project-card,
:root[data-theme="light"] .timeline-card,
:root[data-theme="light"] .contact-form {
  box-shadow: 0 20px 45px rgba(15, 15, 21, 0.06), inset 0 1px 1px rgba(255, 255, 255, 0.6);
  background: 
    radial-gradient(600px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(247, 50, 254, 0.04), transparent 50%),
    var(--color-card-bg);
}

:root[data-theme="light"] .timeline-line {
  background: linear-gradient(to bottom, transparent, rgba(15, 15, 21, 0.08) 10%, rgba(15, 15, 21, 0.08) 90%, transparent);
}

:root[data-theme="light"] .timeline-card:hover {
  border-color: rgba(15, 15, 21, 0.15);
}

:root[data-theme="light"] .skill-tag {
  background: rgba(15, 15, 21, 0.03);
  border: 1px solid rgba(15, 15, 21, 0.07);
}

:root[data-theme="light"] .skill-tag:hover {
  background-color: rgba(15, 15, 21, 0.06);
}

:root[data-theme="light"] .project-link {
  border-color: rgba(15, 15, 21, 0.12);
}

:root[data-theme="light"] .btn-secondary {
  border-color: rgba(15, 15, 21, 0.18);
}

:root[data-theme="light"] .footer-divider {
  background: linear-gradient(90deg, transparent, rgba(15, 15, 21, 0.06), transparent);
}

:root[data-theme="light"] .preloader-grid {
  background-image: 
    linear-gradient(to right, rgba(15, 15, 21, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 15, 21, 0.02) 1px, transparent 1px);
}

:root[data-theme="light"] .preloader-bar-outer {
  background-color: rgba(15, 15, 21, 0.08);
}

:root[data-theme="light"] .preloader-corner {
  color: var(--color-text-muted);
}

:root[data-theme="light"] .input-group input,
:root[data-theme="light"] .input-group textarea {
  border-bottom: 1px solid rgba(15, 15, 21, 0.12);
}

:root[data-theme="light"] .input-group input::placeholder,
:root[data-theme="light"] .input-group textarea::placeholder {
  color: rgba(15, 15, 21, 0.35);
}

/* Interactive Tech Modal (Hatom.com Glassmorphic Style) */
.tech-modal {
  position: fixed;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.tech-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.tech-modal-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(3, 3, 5, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 1;
}

.tech-modal-card {
  position: relative;
  z-index: 2;
  width: 90%;
  max-width: 500px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 12px;
  padding: 3rem 2.5rem 2.5rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), inset 0 1px 1px rgba(255, 255, 255, 0.05);
  transform: scale(0.9);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.tech-modal.active .tech-modal-card {
  transform: scale(1);
}

/* Modal close button */
.tech-modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  transition: var(--transition-fast);
  width: 32px;
  height: 32px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.tech-modal-close:hover {
  color: var(--color-magenta);
  transform: rotate(90deg);
}

/* Corner HUD styling for the modal card */
.tech-modal-card::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--color-lime);
  border-left: 2px solid var(--color-lime);
  pointer-events: none;
}

.tech-modal-card::after {
  content: '';
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 12px;
  height: 12px;
  border-bottom: 2px solid var(--color-magenta);
  border-right: 2px solid var(--color-magenta);
  pointer-events: none;
}

.tech-modal-header {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.tech-modal-hud-label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-lime);
}

.tech-modal-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.tech-modal-description {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.tech-modal-meta-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
  padding: 1.25rem 0;
  margin-bottom: 2rem;
}

.tech-modal-meta-grid .meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tech-modal-meta-grid .meta-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.tech-modal-meta-grid .meta-value {
  font-size: 0.8rem;
  color: var(--color-text-primary);
  font-weight: 600;
}

.tech-modal-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.tech-modal-btn {
  padding: 0.85rem 1rem !important;
  font-size: 0.75rem !important;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 6px;
}

/* Enable hand cursor on tags */
.skill-tag {
  cursor: pointer;
}

/* Light mode overrides for Modal elements */
:root[data-theme="light"] .tech-modal-overlay {
  background-color: rgba(245, 246, 250, 0.72);
}

:root[data-theme="light"] .tech-modal-card {
  box-shadow: 0 25px 60px rgba(15, 15, 21, 0.08), inset 0 1px 1px rgba(255, 255, 255, 0.7);
  background: 
    radial-gradient(600px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(247, 50, 254, 0.04), transparent 50%),
    var(--color-card-bg);
}

:root[data-theme="light"] .tech-modal-meta-grid {
  border-top-color: rgba(15, 15, 21, 0.08);
  border-bottom-color: rgba(15, 15, 21, 0.08);
}

/* Smooth Theme Transitions (Sáng dần / Tối dần) */
html, body {
  transition: background-color 1.2s cubic-bezier(0.25, 1, 0.5, 1), color 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.header, .footer, .footer-divider, .section-header-line, .timeline-line, .diag-item {
  transition: background-color 1.2s cubic-bezier(0.25, 1, 0.5, 1), border-color 1.2s cubic-bezier(0.25, 1, 0.5, 1), color 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.skills-card, .project-card, .timeline-card, .contact-form, .stat-box {
  transition: 
    background 1.2s cubic-bezier(0.25, 1, 0.5, 1), 
    border-color 1.2s cubic-bezier(0.25, 1, 0.5, 1), 
    box-shadow 1.2s cubic-bezier(0.25, 1, 0.5, 1), 
    transform 0.5s cubic-bezier(0.16, 1, 0.3, 1); /* Quick hover tilts */
}

.skill-tag, .btn-secondary, .project-link, .btn-primary {
  transition: 
    background-color 1.2s cubic-bezier(0.25, 1, 0.5, 1), 
    border-color 1.2s cubic-bezier(0.25, 1, 0.5, 1), 
    color 1.2s cubic-bezier(0.25, 1, 0.5, 1),
    box-shadow 1.2s cubic-bezier(0.25, 1, 0.5, 1),
    transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.input-group input, .input-group textarea, .input-group label {
  transition: border-color 1.2s cubic-bezier(0.25, 1, 0.5, 1), color 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.grid-overlay {
  transition: background-image 1.2s cubic-bezier(0.25, 1, 0.5, 1), opacity 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.glow-blob {
  transition: background 1.5s cubic-bezier(0.25, 1, 0.5, 1), opacity 1.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.nav-link, .lang-btn, .theme-btn {
  transition: color 1.2s cubic-bezier(0.25, 1, 0.5, 1), border-color 1.2s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.tech-val, .tech-label, .timeline-org, .timeline-year, .timeline-desc, .timeline-title, .project-title, .project-text, .project-category, .section-title, .section-hud-label, .hero-meta, .hero-desc, .about-heading, .about-text, .section-subtitle, .contact-callout, .contact-description {
  transition: color 1.2s cubic-bezier(0.25, 1, 0.5, 1), text-shadow 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

/* -------------------------------------------------------------
   ASK WITH AI FLOATING ASSISTANT
------------------------------------------------------------- */
.ai-chat-container {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-family: var(--font-body);
}

/* Floating Action Button (FAB) */
.ai-chat-trigger {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  color: var(--color-lime);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.05);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s, box-shadow 0.4s;
  cursor: pointer;
  overflow: visible;
}

.ai-chat-trigger:hover {
  transform: scale(1.08) translateY(-2px);
  border-color: var(--color-lime);
  box-shadow: 0 12px 40px rgba(193, 255, 18, 0.15), 0 0 15px rgba(193, 255, 18, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.08);
}

.ai-chat-icon {
  width: 24px;
  height: 24px;
  transition: transform 0.4s ease;
  z-index: 2;
}

.ai-chat-trigger:hover .ai-chat-icon {
  transform: rotate(15deg);
}

.ai-chat-pulse {
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1.5px solid var(--color-lime);
  opacity: 0.5;
  animation: aiPulse 2.5s cubic-bezier(0.16, 1, 0.3, 1) infinite;
  pointer-events: none;
  z-index: 1;
}

@keyframes aiPulse {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.4); opacity: 0; }
}

.ai-chat-trigger-text {
  position: absolute;
  right: 75px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  color: var(--color-text-primary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  white-space: nowrap;
  opacity: 0;
  transform: translateX(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.ai-chat-trigger:hover .ai-chat-trigger-text {
  opacity: 1;
  transform: translateX(0);
}

/* Chat Window Panel */
.ai-chat-window {
  width: 380px;
  height: 520px;
  background: rgba(6, 6, 9, 0.88);
  border: 1px solid var(--color-card-border);
  border-radius: 16px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), inset 0 1px 1px rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  position: absolute;
  bottom: 80px;
  right: 0;
  overflow: hidden;
  transform: translateY(20px) scale(0.95);
  opacity: 0;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
  pointer-events: none;
}

.ai-chat-window.active {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
}

/* Chat Header */
.ai-chat-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.01);
  position: relative;
}

/* Corner HUD Brackets for chatbot */
.ai-chat-header::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  width: 8px;
  height: 8px;
  border-top: 1px solid var(--color-lime);
  border-left: 1px solid var(--color-lime);
  opacity: 0.5;
}

.ai-chat-header-title {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.ai-chat-hud-title {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
}

.ai-chat-title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-text-primary);
}

.ai-chat-header-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.ai-chat-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.ai-chat-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-lime);
  display: inline-block;
  box-shadow: 0 0 6px var(--color-lime);
}

.ai-chat-status-text {
  font-size: 0.65rem;
  color: var(--color-lime);
  letter-spacing: 0.1em;
}

.ai-chat-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.3s ease;
}

.ai-chat-close:hover {
  color: var(--color-magenta);
}

/* Chat Body */
.ai-chat-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  padding: 1rem 0;
}

.ai-chat-messages {
  flex-grow: 1;
  overflow-y: auto;
  padding: 0 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Messages Custom Scrollbar */
.ai-chat-messages::-webkit-scrollbar {
  width: 4px;
}
.ai-chat-messages::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
}
.ai-chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--color-lime);
}

.ai-message {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-width: 85%;
  animation: messageFade 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes messageFade {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.bot-message {
  align-self: flex-start;
}

.user-message {
  align-self: flex-end;
  max-width: 80%;
}

.ai-message-meta {
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.user-message .ai-message-meta {
  text-align: right;
}

.ai-message-content {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  font-size: 0.88rem;
  line-height: 1.5;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.bot-message .ai-message-content {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-text-secondary);
  border-top-left-radius: 2px;
}

.user-message .ai-message-content {
  background: rgba(193, 255, 18, 0.06);
  border: 1px solid rgba(193, 255, 18, 0.15);
  color: var(--color-text-primary);
  border-top-right-radius: 2px;
}

/* Suggestion Chips */
.ai-chat-suggestions {
  padding: 0.5rem 1.25rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 0.75rem;
}

.ai-suggestion-chip {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-text-secondary);
  font-size: 0.78rem;
  padding: 0.45rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  white-space: nowrap;
}

.ai-suggestion-chip:hover {
  background: rgba(193, 255, 18, 0.04);
  border-color: rgba(193, 255, 18, 0.25);
  color: var(--color-lime);
  transform: translateY(-2px);
}

/* Chat Footer Input Area */
.ai-chat-footer {
  padding: 1rem 1.25rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  gap: 0.75rem;
  align-items: center;
  background: rgba(255, 255, 255, 0.01);
}

.ai-chat-input {
  flex-grow: 1;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--color-text-primary);
  font-size: 0.82rem;
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
}

.ai-chat-input:focus {
  border-color: var(--color-lime);
  box-shadow: 0 0 10px rgba(193, 255, 18, 0.1);
}

.ai-chat-send {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(193, 255, 18, 0.08);
  border: 1px solid rgba(193, 255, 18, 0.2);
  color: var(--color-lime);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.ai-chat-send:hover {
  background: var(--color-lime);
  color: var(--color-bg);
  box-shadow: 0 0 12px rgba(193, 255, 18, 0.3);
}

.send-icon {
  width: 16px;
  height: 16px;
}

/* Typing indicator dot loading animation */
.typing-indicator {
  display: flex;
  gap: 0.25rem;
  padding: 0.25rem 0.5rem;
  align-items: center;
}

.typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-lime);
  opacity: 0.3;
  animation: typingGlow 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingGlow {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.3); opacity: 1; }
}

/* Light theme overrides for AI Chat */
:root[data-theme="light"] .ai-chat-trigger {
  background: rgba(255, 255, 255, 0.65);
}
:root[data-theme="light"] .ai-chat-trigger-text {
  background: rgba(255, 255, 255, 0.85);
  color: var(--color-text-primary);
}
:root[data-theme="light"] .ai-chat-window {
  background: rgba(240, 241, 245, 0.92);
  border-color: rgba(15, 15, 21, 0.08);
  box-shadow: 0 25px 60px rgba(15, 15, 21, 0.15), inset 0 1px 1px rgba(255, 255, 255, 0.8);
}
:root[data-theme="light"] .ai-chat-header {
  border-bottom-color: rgba(15, 15, 21, 0.06);
}
:root[data-theme="light"] .ai-message-content {
  backdrop-filter: none;
}
:root[data-theme="light"] .bot-message .ai-message-content {
  background: rgba(15, 15, 21, 0.03);
  border-color: rgba(15, 15, 21, 0.05);
  color: var(--color-text-secondary);
}
:root[data-theme="light"] .user-message .ai-message-content {
  background: rgba(168, 30, 191, 0.06);
  border-color: rgba(168, 30, 191, 0.15);
  color: var(--color-text-primary);
}
:root[data-theme="light"] .ai-suggestion-chip {
  background: rgba(15, 15, 21, 0.02);
  border-color: rgba(15, 15, 21, 0.05);
}
:root[data-theme="light"] .ai-suggestion-chip:hover {
  background: rgba(168, 30, 191, 0.04);
  border-color: rgba(168, 30, 191, 0.25);
  color: var(--color-magenta);
}
:root[data-theme="light"] .ai-chat-footer {
  border-top-color: rgba(15, 15, 21, 0.06);
}
:root[data-theme="light"] .ai-chat-input {
  background: rgba(15, 15, 21, 0.02);
  border-color: rgba(15, 15, 21, 0.06);
}
:root[data-theme="light"] .ai-chat-input:focus {
  border-color: var(--color-magenta);
}
:root[data-theme="light"] .ai-chat-send {
  background: rgba(168, 30, 191, 0.08);
  border-color: rgba(168, 30, 191, 0.2);
  color: var(--color-magenta);
}
:root[data-theme="light"] .ai-chat-send:hover {
  background: var(--color-magenta);
  color: #ffffff;
  box-shadow: 0 0 12px rgba(168, 30, 191, 0.3);
}

/* Mobile Navigation Hamburger Menu Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001; /* Above mobile menu overlay */
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none; /* Hidden on desktop screens */
  }
}

.menu-toggle .bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 4px;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}

/* Hamburger morphing to X animation */
.menu-toggle.open .bar-1 {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.open .bar-2 {
  opacity: 0;
}

.menu-toggle.open .bar-3 {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Navigation Drawer Overlay */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(10, 10, 15, 0.9); /* Dark cyber backplate */
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  z-index: 1000; /* Behind hamburger button, above page content */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-20px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-nav-drawer.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-nav {
  text-align: center;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav-link {
  font-family: var(--font-mono);
  font-size: 1.8rem; /* Large touch target */
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  transition: color 0.3s ease, text-shadow 0.3s ease;
  position: relative;
  display: inline-block;
  padding: 0.5rem 1rem;
}

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

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--color-text-primary);
  text-shadow: 0 0 10px rgba(193, 255, 18, 0.4);
}

.mobile-nav-link:hover::after, .mobile-nav-link.active::after {
  width: 80%;
}

/* Light Theme Overrides for Mobile Navigation */
:root[data-theme="light"] .mobile-nav-drawer {
  background: rgba(255, 255, 255, 0.94);
}
:root[data-theme="light"] .mobile-nav-link:hover, 
:root[data-theme="light"] .mobile-nav-link.active {
  text-shadow: 0 0 8px rgba(168, 30, 191, 0.2);
}
:root[data-theme="light"] .mobile-nav-link::after {
  background-color: var(--color-magenta);
}

/* Extra Responsive safety adjustments */
@media (max-width: 480px) {
  .hero-title {
    font-size: 3.2rem !important; /* Extremely safe resizing for narrow displays */
  }
  .section-title {
    font-size: 2.2rem !important;
  }
}

@media (max-width: 767px) {
  body {
    overflow-x: hidden; /* Avoid swipe-to-white space layout leaks */
  }
  
  .ai-chat-trigger {
    width: 54px;
    height: 54px;
    bottom: 20px;
    right: 20px;
  }
  .ai-chat-trigger-text {
    display: none;
  }
  .ai-chat-window {
    width: calc(100vw - 32px) !important;
    height: calc(100vh - 120px) !important;
    max-height: 520px !important;
    bottom: 85px !important;
    right: 16px !important;
  }
}