/* ==========================================================================
   MUSTAFA SALEEM — PORTFOLIO STYLESHEET
   Aesthetic: Bespoke Minimalist Tech (Handcrafted Senior Engineer Craft)
   Palette: Deep Pitch Slate + Matrix/Emerald Green (#00FF87 / #10B981)
   ========================================================================== */

/* --- CSS Custom Properties / Design Tokens --- */
:root {
  /* Color Palette - Rich Inky Pitch Darks */
  --bg-primary: #05070a;
  --bg-secondary: #080c14;
  --bg-card: rgba(13, 19, 29, 0.75);
  --bg-card-hover: rgba(18, 27, 42, 0.92);
  --bg-card-solid: #0b1018;
  --bg-glass: rgba(5, 7, 11, 0.82);
  --bg-inset: rgba(255, 255, 255, 0.025);

  /* Primary Accent: Vibrant Emerald Matrix Green */
  --accent: #00FF87;
  --accent-rgb: 0, 255, 135;
  --accent-dim: #10B981;
  --accent-hover: #34D399;
  --accent-glow: rgba(0, 255, 135, 0.15);
  --accent-glow-strong: rgba(0, 255, 135, 0.32);
  --accent-border: rgba(0, 255, 135, 0.24);
  --accent-surface: rgba(0, 255, 135, 0.06);

  /* Secondary Tones */
  --emerald-dark: #064e3b;
  --slate-highlight: rgba(255, 255, 255, 0.09);

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #040608;

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.065);
  --border-card: rgba(255, 255, 255, 0.085);
  --border-card-hover: rgba(0, 255, 135, 0.38);
  --border-focus: rgba(0, 255, 135, 0.55);

  /* Tactile Shadows & Insets */
  --shadow-card: 0 0 0 1px rgba(255, 255, 255, 0.07), 0 4px 16px -2px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  --shadow-card-hover: 0 0 0 1px rgba(0, 255, 135, 0.35), 0 16px 36px -6px rgba(0, 0, 0, 0.7), 0 0 28px -4px rgba(0, 255, 135, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  --shadow-glow: 0 0 35px rgba(0, 255, 135, 0.25);

  /* Border Radii */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-full: 9999px;

  /* Fonts */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Organic Bezier Transitions */
  --transition: 0.24s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.38s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-spring: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  --max-width: 1160px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 255, 135, 0.3) var(--bg-primary);
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  background-image: radial-gradient(ellipse 85% 55% at 50% -5%, #0a111c 0%, #05070a 55%, #030406 100%);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 255, 135, 0.22);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* Links & Typography */
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition), text-shadow var(--transition);
}
a:hover {
  color: #fff;
  text-shadow: 0 0 10px rgba(0, 255, 135, 0.5);
}

img, svg {
  vertical-align: middle;
}

::selection {
  background: rgba(0, 255, 135, 0.25);
  color: #fff;
}

/* --- Ambient Atmospheric Glow & Draftsman's Dot Grid --- */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  max-width: 1400px;
  height: 680px;
  background: radial-gradient(ellipse 70% 55% at 50% -8%, rgba(0, 255, 135, 0.13) 0%, rgba(0, 255, 135, 0.035) 45%, transparent 75%);
  pointer-events: none;
  z-index: 0;
  animation: ambient-breathe 8s ease-in-out infinite alternate;
}

@keyframes ambient-breathe {
  0% { opacity: 0.85; transform: translateX(-50%) scale(1); }
  100% { opacity: 1; transform: translateX(-50%) scale(1.04); }
}

.grid-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background-image: 
    radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse at 50% 35%, #000 35%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 35%, #000 35%, transparent 80%);
  opacity: 0.55;
}

/* Background Canvas */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* --- Preloader --- */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.5s;
}

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

.preloader-inner {
  text-align: center;
  max-width: 320px;
  width: 90%;
}

.preloader-glitch {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
  position: relative;
  display: inline-block;
}

.preloader-glitch::after {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  margin-left: 5px;
  box-shadow: 0 0 12px var(--accent);
  animation: pulse-dot 1.5s infinite;
}

.preloader-bar {
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
  margin-bottom: 0.8rem;
}

.preloader-bar-fill {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-hover));
  border-radius: var(--radius-full);
  transform: translateX(-100%);
  animation: preloader-progress 1.5s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

.preloader-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

@keyframes preloader-progress {
  0% { transform: translateX(-100%); }
  50% { transform: translateX(0%); }
  100% { transform: translateX(100%); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.85); }
}

/* --- Custom Cursor --- */
.cursor-glow {
  position: fixed;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 255, 135, 0.065) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 9999;
  transition: width 0.35s var(--transition-spring), height 0.35s var(--transition-spring), background 0.3s ease;
}

.cursor-dot {
  position: fixed;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 10000;
  transition: transform 0.18s var(--transition-spring);
}

.cursor-glow.cursor-hover {
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(0, 255, 135, 0.11) 0%, transparent 70%);
}

.cursor-dot.cursor-hover {
  transform: translate(-50%, -50%) scale(1.6);
  background: #ffffff;
  box-shadow: 0 0 16px var(--accent);
}

/* --- Scroll Reading Progress Bar --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  z-index: 10001;
  box-shadow: 0 0 12px rgba(0, 255, 135, 0.7);
  transition: width 0.06s linear;
}

/* --- Floating Capsule Navigation Bar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.25rem 2rem;
  transition: padding var(--transition), background var(--transition), border var(--transition);
  background: transparent;
}

.navbar.scrolled {
  padding: 0.85rem 2rem;
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 12px 32px -8px rgba(0, 0, 0, 0.6);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 2px;
  transition: opacity var(--transition);
}

.nav-logo:hover {
  text-shadow: none;
  opacity: 0.88;
}

.nav-logo span {
  color: var(--accent);
  font-weight: 600;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.3rem;
  background: rgba(255, 255, 255, 0.035);
  padding: 4px 6px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-links li {
  display: flex;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 15px;
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
  text-shadow: none;
}

.nav-links a.active {
  color: var(--accent);
  background: var(--accent-surface);
  border: 1px solid var(--accent-border);
  box-shadow: 0 0 14px rgba(0, 255, 135, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  text-shadow: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Section Layout --- */
.section {
  position: relative;
  z-index: 1;
  padding: 130px 2rem;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-surface);
  border: 1px solid var(--accent-border);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.section-num {
  color: var(--accent-dim);
  font-weight: 600;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 3.5rem;
  color: var(--text-primary);
  line-height: 1.15;
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.4s; }
.reveal-delay-6 { transition-delay: 0.48s; }
.reveal-delay-7 { transition-delay: 0.56s; }

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 130px 2rem 60px;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 860px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--accent);
  background: var(--accent-surface);
  border: 1px solid var(--accent-border);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  margin-bottom: 1.6rem;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 0 20px rgba(0, 255, 135, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.hero-greeting::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse-dot 2s infinite;
}

.hero-name {
  font-family: var(--font-heading);
  font-size: clamp(3.2rem, 8vw, 5.8rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.045em;
  margin-bottom: 1.25rem;
  background: linear-gradient(180deg, #FFFFFF 20%, #cbd5e1 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glitch {
  position: relative;
  display: inline-block;
}

/* Typing role */
.hero-role {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  color: var(--accent);
  min-height: 2em;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: var(--accent);
  margin-left: 3px;
  vertical-align: middle;
  animation: blink 0.9s infinite;
  box-shadow: 0 0 8px var(--accent);
}

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

.hero-tagline {
  font-size: clamp(1rem, 1.7vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 620px;
  margin-bottom: 2.8rem;
}

/* Hero CTAs */
.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  line-height: 1;
  position: relative;
  overflow: hidden;
}

/* Primary Button */
.btn-primary {
  background: var(--accent);
  color: var(--text-inverse);
  box-shadow: 0 4px 20px -2px rgba(0, 255, 135, 0.45), inset 0 1px 1px rgba(255, 255, 255, 0.6);
}

.btn-primary:hover {
  background: #ffffff;
  color: var(--text-inverse);
  box-shadow: 0 6px 28px rgba(0, 255, 135, 0.55);
  transform: translateY(-2px);
  text-shadow: none;
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

/* Outline & Ghost Buttons */
.btn-outline {
  background: rgba(255, 255, 255, 0.035);
  color: var(--text-primary);
  border: 1px solid var(--border-card);
  backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
  color: #fff;
  transform: translateY(-2px);
  text-shadow: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-surface);
  transform: translateY(-2px);
  text-shadow: none;
}

/* Hero Scroll */
.hero-scroll {
  position: absolute;
  bottom: 2.2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-scroll .arrow {
  width: 1px;
  height: 24px;
  background: linear-gradient(180deg, var(--accent), transparent);
  animation: scroll-indicator 2.2s ease-in-out infinite;
}

@keyframes scroll-indicator {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.1% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about-content {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.82;
  margin-bottom: 1.4rem;
}

.highlight {
  color: var(--text-primary);
  font-weight: 600;
  border-bottom: 1px dashed rgba(0, 255, 135, 0.45);
}

/* Stat Cards */
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 1.3rem 1rem;
  text-align: center;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.stat-item:hover {
  border-color: var(--accent-border);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.04em;
  margin-bottom: 0.25rem;
  line-height: 1;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* About Avatar & Handcrafted Terminal Card */
.about-avatar-frame {
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

.about-avatar {
  width: 100%;
}

.terminal-avatar {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-smooth);
}

.terminal-avatar:hover {
  border-color: var(--accent-border);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}

.terminal-header {
  background: rgba(255, 255, 255, 0.035);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-controls {
  display: flex;
  align-items: center;
  gap: 7px;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.4);
}

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-tab {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent);
  background: rgba(0, 255, 135, 0.07);
  border: 1px solid var(--accent-border);
  padding: 3px 10px;
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.85;
}

.terminal-body p {
  margin-bottom: 0.4rem;
}

.t-prompt {
  color: var(--accent);
  font-weight: 700;
  margin-right: 6px;
}

.t-cmd {
  color: var(--text-primary);
}

.t-output {
  color: var(--text-secondary);
  padding-left: 14px;
}

.t-accent {
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.t-cursor {
  color: var(--accent);
  animation: blink 1s infinite;
}

/* ==========================================================================
   SKILLS SECTION (Handcrafted SVGs & Spotlight Cards)
   ========================================================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 1.85rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-smooth);
}

.skill-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    480px circle at var(--glow-x, 50%) var(--glow-y, 50%),
    rgba(0, 255, 135, 0.1),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.skill-category:hover::before {
  opacity: 1;
}

.skill-category:hover {
  border-color: var(--border-card-hover);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}

/* Bespoke SVG Icon Container */
.skill-category-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(0, 255, 135, 0.12), rgba(0, 255, 135, 0.02));
  border: 1px solid rgba(0, 255, 135, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.15rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: all var(--transition);
}

.skill-category:hover .skill-category-icon {
  background: var(--accent);
  color: var(--text-inverse);
  box-shadow: 0 0 16px rgba(0, 255, 135, 0.5);
  transform: scale(1.05);
}

.skill-category-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

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

.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  padding: 5px 12px;
  border-radius: var(--radius-xs);
  transition: all var(--transition);
  cursor: default;
  user-select: none;
  opacity: 0;
  transform: translateY(6px);
}

.skill-tag.visible {
  opacity: 1;
  transform: translateY(0);
}

.skill-tag:hover {
  color: var(--accent);
  background: var(--accent-surface);
  border-color: var(--accent-border);
  box-shadow: 0 0 12px rgba(0, 255, 135, 0.15);
}

/* ==========================================================================
   PROJECTS SECTION (Artisanal Spotlight Project Cards)
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.75rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-smooth);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    500px circle at var(--glow-x, 50%) var(--glow-y, 50%),
    rgba(0, 255, 135, 0.12),
    transparent 65%
  );
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

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

.project-card:hover {
  border-color: var(--border-card-hover);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.4rem;
}

/* Handcrafted Project SVG Icon Container */
.project-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(0, 255, 135, 0.12), rgba(0, 255, 135, 0.02));
  border: 1px solid rgba(0, 255, 135, 0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: all var(--transition);
}

.project-card:hover .project-icon {
  background: var(--accent);
  color: var(--text-inverse);
  box-shadow: 0 0 18px rgba(0, 255, 135, 0.5);
  transform: scale(1.05);
}

.project-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition);
}

.project-links a:hover {
  background: var(--accent);
  color: var(--text-inverse);
  border-color: var(--accent);
  box-shadow: 0 0 16px rgba(0, 255, 135, 0.4);
  transform: translate(2px, -2px);
  text-shadow: none;
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
  transition: color var(--transition);
}

.project-card:hover .project-title {
  color: #fff;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.72;
  margin-bottom: 1.8rem;
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-surface);
  border: 1px solid var(--accent-border);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

/* ==========================================================================
   EDUCATION & TIMELINE SECTION
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 1px;
  background: linear-gradient(
    180deg,
    var(--accent) 0%,
    rgba(0, 255, 135, 0.25) 70%,
    transparent 100%
  );
}

.timeline-item {
  position: relative;
  padding-bottom: 3.2rem;
}

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

/* Node pulse */
.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 4px;
  transform: translateX(-50%);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent);
  box-shadow: 0 0 10px var(--accent);
  transition: all var(--transition);
}

.timeline-item:hover::before {
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent);
  transform: translateX(-50%) scale(1.3);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent);
  background: var(--accent-surface);
  border: 1px solid var(--accent-border);
  display: inline-block;
  padding: 3px 11px;
  border-radius: var(--radius-full);
  margin-bottom: 0.65rem;
  letter-spacing: 0.04em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.timeline-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.timeline-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.6rem;
}

.timeline-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   BLOG / RESEARCH SECTION
   ========================================================================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.blog-card:hover {
  border-color: var(--border-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.blog-badge {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--accent-surface);
  border: 1px solid var(--accent-border);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse-dot 1.8s infinite;
}

.blog-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  color: var(--text-muted);
}

.blog-placeholder svg {
  stroke: var(--accent);
  opacity: 0.7;
}

.blog-placeholder p {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-content {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-content p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.availability-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #28c840;
  background: rgba(40, 200, 64, 0.08);
  border: 1px solid rgba(40, 200, 64, 0.25);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 2.5rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.availability-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #28c840;
  box-shadow: 0 0 10px #28c840;
  animation: pulse-dot 1.5s infinite;
}

.contact-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}

.contact-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  transition: transform var(--transition);
}

.contact-link:hover {
  color: #fff;
  border-color: var(--accent-border);
  background: var(--bg-card-hover);
  box-shadow: 0 0 24px rgba(0, 255, 135, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  text-shadow: none;
}

.contact-link:hover svg {
  transform: scale(1.12);
  fill: var(--accent);
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  box-shadow: 0 0 16px rgba(0, 255, 135, 0.25);
  transform: translateY(-3px);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 5rem 2rem 2.5rem;
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand .footer-logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: inline-block;
  margin-bottom: 0.8rem;
  letter-spacing: -0.03em;
}

.footer-brand .footer-logo span {
  color: var(--accent);
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  max-width: 360px;
}

.footer-nav h4,
.footer-social h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
  letter-spacing: -0.01em;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-nav a {
  color: var(--text-secondary);
  font-size: 0.88rem;
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--accent);
  text-shadow: none;
}

.footer-social-links {
  display: flex;
  gap: 0.75rem;
}

.footer-social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all var(--transition);
}

.footer-social-links a:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-surface);
  transform: translateY(-2px);
  text-shadow: none;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom .accent {
  color: var(--text-secondary);
}

.footer-credit {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* ==========================================================================
   EASTER EGG TERMINAL
   ========================================================================== */
.easter-terminal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.easter-terminal.active {
  display: flex;
  opacity: 1;
}

.easter-terminal-window {
  width: 90%;
  max-width: 640px;
  max-height: 75vh;
  background: #080c12;
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.8), 0 0 35px rgba(0, 255, 135, 0.12);
  display: flex;
  flex-direction: column;
}

.easter-terminal-window .terminal-header {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
}

.easter-close {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
  transition: color var(--transition);
  line-height: 1;
}

.easter-close:hover {
  color: #ff5f57;
}

.easter-terminal-body {
  padding: 1.25rem;
  overflow-y: auto;
  max-height: 52vh;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
}

.easter-terminal-body p {
  margin-bottom: 2px;
  color: var(--text-secondary);
}

.easter-input-line {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.02);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.easter-input-line .t-prompt {
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

#easter-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  caret-color: var(--accent);
}

#easter-input::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 992px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .about-avatar-frame {
    max-width: 100%;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 1rem;
    right: 1rem;
    flex-direction: column;
    background: #080c14;
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 1rem;
    display: none;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 10px;
  }

  .hero {
    padding-top: 100px;
  }

  .hero-name {
    font-size: 2.6rem;
  }

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

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .cursor-glow,
  .cursor-dot {
    display: none !important;
  }
}