/* ==========================================================================
   CYBERPUNK / HACKER TERMINAL DESIGN SYSTEM (NEO BLUE THEME)
   ========================================================================== */
:root {
  --bg-main: #040914;
  --bg-darker: #02050c;
  --bg-card: rgba(7, 18, 40, 0.85);
  --bg-card-hover: rgba(11, 28, 62, 0.94);
  --bg-terminal-bar: #091530;
  
  --neon-green: #00d2ff;
  --neon-green-glow: rgba(0, 210, 255, 0.42);
  --neon-green-soft: rgba(0, 210, 255, 0.12);
  
  --neon-cyan: #3b82f6;
  --neon-cyan-glow: rgba(59, 130, 246, 0.42);
  --neon-cyan-soft: rgba(59, 130, 246, 0.12);
  
  --neon-amber: #38bdf8;
  --neon-red: #f43f5e;
  
  --text-main: #f0f6ff;
  --text-dim: #93c5fd;
  --text-muted: #47628f;
  
  --border-color: rgba(0, 210, 255, 0.28);
  --border-cyan: rgba(59, 130, 246, 0.32);
  --border-card: rgba(0, 210, 255, 0.09);
  
  --font-mono: 'JetBrains Mono', 'Consolas', 'Courier New', monospace;
  --font-display: 'Orbitron', var(--font-mono);
  
  --glow-green: 0 0 10px var(--neon-green-glow), 0 0 20px rgba(0, 210, 255, 0.18);
  --glow-cyan: 0 0 10px var(--neon-cyan-glow), 0 0 20px rgba(59, 130, 246, 0.18);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
}

body {
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 210, 255, 0.08) 0%, transparent 60%),
    radial-gradient(circle at 85% 35%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 10% 60%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
    linear-gradient(to bottom, transparent, rgba(2, 5, 12, 0.96));
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* --- Interactive Digital Dots Canvas --- */
#digital-dots-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  opacity: 1;
  pointer-events: none;
}

/* --- Floating Cyber Defense Telemetry Widget --- */
.cyber-telemetry-hud {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  background: rgba(7, 18, 40, 0.88);
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.7), 0 0 15px var(--neon-green-soft);
  backdrop-filter: blur(10px);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  display: flex;
  flex-direction: column;
  gap: 6px;
  pointer-events: auto;
  transition: all 0.3s ease;
}
.cyber-telemetry-hud:hover {
  border-color: var(--neon-green);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.8), 0 0 25px var(--neon-green-glow);
}
.hud-telemetry-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}
.hud-title {
  color: var(--neon-green);
  font-family: var(--font-display);
  font-size: 0.72rem;
}
.hud-pulse-btn {
  margin-left: auto;
  background: rgba(0, 210, 255, 0.15);
  border: 1px solid var(--border-color);
  color: var(--neon-green);
  padding: 2px 8px;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  font-weight: 700;
  border-radius: 3px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s ease;
}
.hud-pulse-btn:hover {
  background: var(--neon-green);
  color: #02050c;
  box-shadow: 0 0 10px var(--neon-green-glow);
}
.hud-telemetry-stats {
  display: flex;
  gap: 12px;
  color: var(--text-dim);
  font-size: 0.7rem;
}
@media (max-width: 768px) {
  .cyber-telemetry-hud {
    display: none;
  }
}

/* --- Scanline & CRT Effect --- */
.scanlines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 999;
  background: linear-gradient(
    rgba(4, 9, 20, 0) 50%, 
    rgba(0, 0, 0, 0.2) 50%
  ), linear-gradient(
    90deg,
    rgba(0, 210, 255, 0.015),
    rgba(59, 130, 246, 0.015),
    rgba(56, 189, 248, 0.015)
  );
  background-size: 100% 4px, 6px 100%;
  opacity: 0.55;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darker);
}
::-webkit-scrollbar-thumb {
  background: #0f1e3d;
  border: 1px solid var(--border-color);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--neon-green);
  box-shadow: var(--glow-green);
}

/* --- Typography & Accents --- */
a {
  color: var(--neon-green);
  text-decoration: none;
  transition: all 0.2s ease;
}
a:hover {
  color: var(--neon-amber);
  text-shadow: var(--glow-green);
}

.accent-green { color: var(--neon-green); }
.accent-cyan { color: var(--neon-cyan); }
.accent-amber { color: var(--neon-amber); }
.accent-red { color: var(--neon-red); }
.dim { color: var(--text-dim); }
.muted { color: var(--text-muted); }

.glow-text-green {
  text-shadow: 0 0 8px var(--neon-green-glow);
}
.glow-text-cyan {
  text-shadow: 0 0 8px var(--neon-cyan-glow);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  position: relative;
  z-index: 5;
  background: transparent;
}

/* ==========================================================================
   HEADER & NAVIGATION (CYBER HUD)
   ========================================================================== */
.cyber-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(4, 9, 20, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.7);
  transition: all 0.3s ease;
}
.cyber-nav.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.9), 0 0 15px rgba(0, 210, 255, 0.15);
  border-bottom-color: rgba(0, 210, 255, 0.5);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
}

.brand-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo .term-prefix {
  color: var(--neon-green);
  animation: blink 1s infinite;
}

.badge-status {
  font-size: 0.7rem;
  background: var(--neon-green-soft);
  color: var(--neon-green);
  border: 1px solid var(--border-color);
  padding: 2px 8px;
  border-radius: 3px;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-pulse {
  width: 6px;
  height: 6px;
  background-color: var(--neon-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--neon-green);
  animation: pulseDot 1.5s infinite;
}

@keyframes pulseDot {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.4); opacity: 1; box-shadow: 0 0 12px var(--neon-green); }
  100% { transform: scale(0.9); opacity: 0.7; }
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 20px;
  align-items: center;
}

.nav-link {
  color: var(--text-dim);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 4px;
  position: relative;
  transition: all 0.25s ease;
}

.nav-link:hover, .nav-link.active, .nav-link.section-active {
  color: var(--neon-green);
  background: var(--neon-green-soft);
  text-shadow: 0 0 8px var(--neon-green-glow);
}

.nav-link .cmd-key {
  color: var(--neon-cyan);
  font-size: 0.75rem;
  margin-right: 4px;
}

.audio-toggle-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--neon-green);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.audio-toggle-btn:hover {
  background: var(--neon-green-soft);
  box-shadow: var(--glow-green);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  color: var(--neon-green);
  font-size: 1.2rem;
  padding: 6px 10px;
  border-radius: 4px;
  cursor: pointer;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 80px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--neon-green-soft);
  color: var(--neon-green);
  border: 1px solid var(--border-color);
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.82rem;
  margin-bottom: 16px;
  font-weight: 600;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.1;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.hero-title .name-highlight {
  color: var(--neon-green);
  text-shadow: var(--glow-green);
}

.hero-institution {
  font-size: 1.15rem;
  color: var(--neon-amber);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.hero-desc {
  font-size: 0.98rem;
  color: var(--text-dim);
  margin-bottom: 28px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.btn-cyber-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 26px;
  background: var(--neon-green);
  color: #02050c;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.25s ease;
  box-shadow: 0 0 15px var(--neon-green-glow);
}

.btn-cyber-primary:hover {
  background: #38bdf8;
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(0, 210, 255, 0.6);
  color: #02050c;
}

.btn-cyber-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: rgba(0, 210, 255, 0.06);
  color: var(--neon-green);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-cyber-secondary:hover {
  background: var(--neon-green-soft);
  color: #fff;
  border-color: var(--neon-green);
  box-shadow: var(--glow-green);
  transform: translateY(-2px);
}

.hero-visual-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* --- Cyber Profile Photo Frame --- */
.cyber-profile-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 20px var(--neon-green-soft);
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.cyber-profile-card:hover {
  border-color: var(--neon-green);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.8), 0 0 30px var(--neon-green-glow);
  transform: translateY(-3px);
}

.cyber-photo-frame {
  position: relative;
  width: 100%;
  max-width: 260px;
  height: 260px;
  margin: 0 auto;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(0, 210, 255, 0.4);
  background: #02050c;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.8);
}

.cyber-photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: contrast(1.06) brightness(1.02) saturate(1.08);
  transition: transform 0.5s ease, filter 0.5s ease;
}

.cyber-profile-card:hover .cyber-photo-img {
  transform: scale(1.04);
  filter: contrast(1.1) brightness(1.06) saturate(1.15);
}

/* Corner HUD Brackets */
.corner-bracket {
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--neon-green);
  border-style: solid;
  z-index: 4;
  pointer-events: none;
}
.corner-bracket.top-left {
  top: 6px;
  left: 6px;
  border-width: 2px 0 0 2px;
}
.corner-bracket.top-right {
  top: 6px;
  right: 6px;
  border-width: 2px 2px 0 0;
}
.corner-bracket.bottom-left {
  bottom: 6px;
  left: 6px;
  border-width: 0 0 2px 2px;
}
.corner-bracket.bottom-right {
  bottom: 6px;
  right: 6px;
  border-width: 0 2px 2px 0;
}

/* Scanning Laser Bar */
.photo-scan-bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--neon-green), var(--neon-cyan), transparent);
  box-shadow: 0 0 12px var(--neon-green-glow), 0 0 20px rgba(0, 210, 255, 0.8);
  z-index: 3;
  pointer-events: none;
  animation: photoScan 3s ease-in-out infinite;
}

@keyframes photoScan {
  0% { top: 0%; opacity: 0.2; }
  50% { top: 96%; opacity: 0.9; }
  100% { top: 0%; opacity: 0.2; }
}

/* HUD Overlay Badges */
.photo-hud-badge {
  position: absolute;
  z-index: 4;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 3px;
  backdrop-filter: blur(6px);
  pointer-events: none;
}

.photo-hud-badge.top-badge {
  top: 10px;
  left: 10px;
  background: rgba(4, 9, 20, 0.75);
  color: var(--neon-green);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 5px;
}

.photo-hud-badge.bottom-badge {
  bottom: 10px;
  right: 10px;
  background: rgba(4, 9, 20, 0.82);
  color: var(--neon-cyan);
  border: 1px solid var(--border-cyan);
  display: flex;
  align-items: center;
  gap: 5px;
}

.photo-hud-badge .hud-dot {
  width: 5px;
  height: 5px;
  background: var(--neon-green);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--neon-green);
  animation: pulseDot 1.2s infinite;
}

/* Profile Meta Bar */
.profile-meta-bar {
  display: flex;
  justify-content: space-around;
  background: rgba(2, 5, 12, 0.8);
  border: 1px solid var(--border-card);
  border-radius: 4px;
  padding: 8px 12px;
  margin-top: 12px;
  font-size: 0.76rem;
  font-family: var(--font-mono);
}

.meta-item {
  display: flex;
  gap: 4px;
  align-items: center;
}

.meta-label {
  color: var(--text-muted);
  font-weight: 600;
}

.hero-terminal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.7), var(--glow-green);
  overflow: hidden;
}

.terminal-header {
  background: var(--bg-terminal-bar);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-close { background: #ff5f56; }
.dot-min { background: #ffbd2e; }
.dot-max { background: #00d2ff; }

.terminal-title {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.terminal-body {
  padding: 18px;
  font-size: 0.88rem;
  color: #c9d6df;
  line-height: 1.6;
}

.code-line {
  margin-bottom: 8px;
}

.prompt-prefix {
  color: var(--neon-green);
  font-weight: 700;
}

.cursor-blink {
  display: inline-block;
  width: 8px;
  height: 15px;
  background-color: var(--neon-green);
  vertical-align: middle;
  animation: blink 0.9s infinite;
}

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

/* ==========================================================================
   METRIC STRIP
   ========================================================================== */
.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.metric-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  padding: 16px;
  text-align: center;
  transition: all 0.25s ease;
}

.metric-box:hover {
  border-color: var(--border-color);
  transform: translateY(-3px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.6), var(--glow-green);
}

.metric-val {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--neon-green);
  margin-bottom: 4px;
}

.metric-label {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   SECTION COMMON STYLES
   ========================================================================== */
section {
  padding: 80px 0;
  position: relative;
  z-index: 5;
}

.section-header {
  margin-bottom: 45px;
}

.section-tag {
  color: var(--neon-cyan);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-color), transparent);
  margin-left: 20px;
}

/* ==========================================================================
   ABOUT ME SECTION
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.5);
}

.about-card-header {
  background: var(--bg-terminal-bar);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.about-tabs {
  display: flex;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.about-tab {
  flex: 1;
  text-align: center;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-dim);
  font-size: 0.82rem;
  cursor: pointer;
  border: none;
  font-family: var(--font-mono);
  transition: all 0.2s ease;
}

.about-tab:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.about-tab.active {
  background: var(--bg-card);
  color: var(--neon-green);
  font-weight: 700;
  border-bottom: 2px solid var(--neon-green);
}

.about-content {
  padding: 24px;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.about-p {
  color: var(--text-dim);
  margin-bottom: 18px;
  line-height: 1.8;
  font-size: 0.94rem;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.highlight-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px 14px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-card);
  border-left: 3px solid var(--neon-green);
  border-radius: 4px;
}

.highlight-icon {
  font-size: 1.2rem;
  color: var(--neon-green);
  margin-top: 2px;
}

.highlight-title {
  font-weight: 700;
  color: #fff;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.highlight-desc {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.spec-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  padding: 18px;
  transition: all 0.25s ease;
}

.spec-card:hover {
  border-color: var(--border-color);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6), 0 0 15px var(--neon-green-soft);
}

.spec-icon {
  font-size: 1.5rem;
  color: var(--neon-cyan);
  margin-bottom: 12px;
}

.spec-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.spec-text {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ==========================================================================
   SKILLS SECTION
   ========================================================================== */
.skills-filter {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 6px 14px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover, .filter-btn.active {
  background: var(--neon-green-soft);
  color: var(--neon-green);
  border-color: var(--neon-green);
  box-shadow: 0 0 10px var(--neon-green-glow);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: all 0.25s ease;
}

.skill-card:hover {
  border-color: var(--neon-green);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 20px var(--neon-green-soft);
}

.skill-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.skill-icon {
  font-size: 1.8rem;
  color: var(--neon-green);
}

.skill-badge {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-net { background: rgba(0, 210, 255, 0.12); color: var(--neon-green); }
.badge-sec { background: rgba(59, 130, 246, 0.12); color: var(--neon-cyan); }
.badge-sys { background: rgba(56, 189, 248, 0.12); color: var(--neon-amber); }
.badge-dev { background: rgba(244, 63, 94, 0.12); color: var(--neon-red); }

.skill-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.skill-desc {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 14px;
  line-height: 1.5;
}

.skill-progress-wrap {
  margin-top: 10px;
}

.skill-progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan));
  border-radius: 3px;
  box-shadow: 0 0 8px var(--neon-green-glow);
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.skill-progress-fill.animate-zero {
  width: 0% !important;
}

.skill-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.skill-pill {
  font-size: 0.72rem;
  background: rgba(0, 210, 255, 0.08);
  color: var(--text-dim);
  padding: 2px 8px;
  border-radius: 3px;
  border: 1px solid rgba(0, 210, 255, 0.2);
}

/* ==========================================================================
   PROJECTS SECTION
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.project-card:hover {
  border-color: var(--neon-green);
  transform: translateY(-4px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.8), 0 0 20px var(--neon-green-soft);
}

.project-terminal-bar {
  background: var(--bg-terminal-bar);
  padding: 8px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.78rem;
  color: var(--text-dim);
}

.project-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.project-desc {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.project-meta {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 14px;
  margin-top: auto;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.project-tag {
  font-size: 0.72rem;
  background: rgba(0, 210, 255, 0.08);
  color: var(--neon-green);
  border: 1px solid rgba(0, 210, 255, 0.25);
  padding: 2px 8px;
  border-radius: 3px;
}

.project-actions {
  display: flex;
  gap: 10px;
}

.project-btn-primary {
  flex: 1;
  padding: 8px 12px;
  background: var(--neon-green-soft);
  color: var(--neon-green);
  border: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 3px;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.project-btn-primary:hover {
  background: var(--neon-green);
  color: #02050c;
  box-shadow: 0 0 12px var(--neon-green-glow);
}

.project-btn-secondary {
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-dim);
  border: 1px solid var(--border-card);
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.project-btn-secondary:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

/* ==========================================================================
   INTERACTIVE TERMINAL CLI SECTION
   ========================================================================== */
.interactive-cli-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 10px 35px rgba(0,0,0,0.7), var(--glow-green);
}

.cli-header {
  background: var(--bg-terminal-bar);
  padding: 10px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cli-screen {
  padding: 20px;
  min-height: 260px;
  max-height: 380px;
  overflow-y: auto;
  font-size: 0.9rem;
  color: #d1dbe5;
}

.cli-output {
  margin-bottom: 12px;
  line-height: 1.6;
}

.cli-input-form {
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 12px 20px;
  background: rgba(0, 0, 0, 0.3);
}

.cli-prompt-label {
  color: var(--neon-green);
  font-weight: 700;
  white-space: nowrap;
}

.cli-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.cli-shortcuts {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.cli-shortcuts-title {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.cmd-chip {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-card);
  color: var(--text-dim);
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.cmd-chip:hover {
  border-color: var(--neon-green);
  color: var(--neon-green);
  background: var(--neon-green-soft);
}

/* ==========================================================================
   CONTACT / PING SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 30px;
}

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  padding: 24px;
}

.contact-channel-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.contact-channel {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-card);
  border-radius: 4px;
  transition: all 0.2s ease;
}

.contact-channel:hover {
  border-color: var(--border-color);
  background: var(--neon-green-soft);
  transform: translateX(4px);
}

.channel-icon {
  width: 36px;
  height: 36px;
  background: rgba(0, 210, 255, 0.1);
  color: var(--neon-green);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.channel-details .channel-name {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.channel-details .channel-val {
  font-size: 0.9rem;
  color: #fff;
  font-weight: 600;
}

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  padding: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input, .form-textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-card);
  padding: 10px 14px;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  border-radius: 4px;
  outline: none;
  transition: all 0.2s ease;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--neon-green);
  box-shadow: 0 0 10px var(--neon-green-soft);
  background: rgba(0, 0, 0, 0.7);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-send-packet {
  width: 100%;
  padding: 12px;
  background: var(--neon-green);
  color: #02050c;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
  box-shadow: 0 0 12px var(--neon-green-glow);
}

.btn-send-packet:hover {
  background: #60a5fa;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
  transform: translateY(-2px);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.cyber-footer {
  background: var(--bg-darker);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 40px 0 25px;
  margin-top: 60px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 30px;
}

.footer-brand .brand-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 8px;
}

.footer-brand p {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.85rem;
}

.footer-links-title {
  color: var(--neon-green);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 12px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: var(--text-dim);
  font-size: 0.85rem;
}
.footer-links a:hover {
  color: var(--neon-cyan);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 10px;
}

/* Modal dialog for Project preview / Details */
.cyber-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.cyber-modal {
  background: var(--bg-darker);
  border: 1px solid var(--neon-green);
  box-shadow: 0 0 30px var(--neon-green-glow);
  border-radius: 6px;
  max-width: 650px;
  width: 100%;
  overflow: hidden;
  animation: modalZoom 0.25s ease-out;
}

@keyframes modalZoom {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-bar {
  background: var(--bg-terminal-bar);
  padding: 10px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(0, 210, 255, 0.2);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--neon-red);
  font-size: 1.1rem;
  cursor: pointer;
}

.modal-body {
  padding: 24px;
  max-height: 75vh;
  overflow-y: auto;
}

/* ==========================================================================
   ADVANCED ANIMATIONS CSS
   ========================================================================== */

/* --- Glitch Text Effect --- */
.glitch-text {
  position: relative;
  display: inline-block;
}
.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.glitch-text::before {
  color: var(--neon-cyan);
  z-index: -1;
  animation: glitch-clip-top 3s infinite linear alternate-reverse;
}
.glitch-text::after {
  color: var(--neon-amber);
  z-index: -2;
  animation: glitch-clip-bottom 2.5s infinite linear alternate-reverse;
}
@keyframes glitch-clip-top {
  0%   { clip-path: inset(0 0 85% 0); transform: translate(-3px, -2px); }
  10%  { clip-path: inset(15% 0 60% 0); transform: translate(3px, 1px); }
  20%  { clip-path: inset(50% 0 20% 0); transform: translate(-2px, 2px); }
  30%  { clip-path: inset(10% 0 70% 0); transform: translate(2px, -1px); }
  40%  { clip-path: inset(60% 0 5% 0); transform: translate(-1px, 3px); }
  50%  { clip-path: inset(25% 0 50% 0); transform: translate(1px, -2px); }
  60%  { clip-path: inset(75% 0 0% 0); transform: translate(-3px, 1px); }
  70%  { clip-path: inset(5% 0 80% 0); transform: translate(2px, 2px); }
  80%  { clip-path: inset(40% 0 30% 0); transform: translate(-2px, -3px); }
  90%  { clip-path: inset(70% 0 10% 0); transform: translate(3px, -1px); }
  100% { clip-path: inset(0 0 90% 0); transform: translate(-1px, 2px); }
}
@keyframes glitch-clip-bottom {
  0%   { clip-path: inset(80% 0 0 0); transform: translate(3px, 2px); }
  10%  { clip-path: inset(40% 0 30% 0); transform: translate(-2px, -1px); }
  20%  { clip-path: inset(10% 0 60% 0); transform: translate(1px, -2px); }
  30%  { clip-path: inset(65% 0 10% 0); transform: translate(-3px, 1px); }
  40%  { clip-path: inset(20% 0 50% 0); transform: translate(2px, 3px); }
  50%  { clip-path: inset(55% 0 20% 0); transform: translate(-1px, -3px); }
  60%  { clip-path: inset(5% 0 75% 0); transform: translate(3px, -2px); }
  70%  { clip-path: inset(45% 0 25% 0); transform: translate(-2px, 1px); }
  80%  { clip-path: inset(85% 0 0 0); transform: translate(1px, 2px); }
  90%  { clip-path: inset(30% 0 40% 0); transform: translate(-3px, -1px); }
  100% { clip-path: inset(70% 0 5% 0); transform: translate(2px, -2px); }
}

/* --- Magnetic Cursor Orb --- */
.cyber-cursor-orb {
  position: fixed;
  width: 22px;
  height: 22px;
  border: 2px solid var(--neon-green);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transition: width 0.2s, height 0.2s, border-color 0.3s, background 0.3s;
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
  box-shadow: 0 0 12px var(--neon-green-glow);
}
.cyber-cursor-orb.hovering {
  width: 50px;
  height: 50px;
  border-color: var(--neon-amber);
  background: rgba(0, 210, 255, 0.08);
  box-shadow: 0 0 20px var(--neon-green-glow), 0 0 40px rgba(0, 210, 255, 0.1);
}
.cyber-cursor-trail {
  position: fixed;
  width: 6px;
  height: 6px;
  background: var(--neon-green);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9997;
  transform: translate(-50%, -50%);
  opacity: 0.5;
  transition: opacity 0.5s;
  box-shadow: 0 0 6px var(--neon-green);
}

/* --- Scroll Reveal Animations --- */
.reveal-element {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-element.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}
.reveal-scale {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* --- 3D Tilt Perspective --- */
.tilt-card {
  transform-style: preserve-3d;
  perspective: 800px;
}

/* --- Click Ripple --- */
.click-ripple {
  position: fixed;
  border: 2px solid var(--neon-green);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9996;
  animation: rippleExpand 0.6s ease-out forwards;
}
@keyframes rippleExpand {
  0% { width: 0; height: 0; opacity: 1; transform: translate(-50%, -50%); }
  100% { width: 120px; height: 120px; opacity: 0; transform: translate(-50%, -50%); }
}

/* --- Hex & Digital Circuit Background Overlay --- */
.hex-grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.08;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cpath d='M30 0 L60 17.32 L60 51.96 L30 60 L0 51.96 L0 17.32 Z' fill='none' stroke='%2300d2ff' stroke-width='0.6' stroke-opacity='0.4'/%3E%3Ccircle cx='30' cy='30' r='1.5' fill='%2338bdf8' opacity='0.7'/%3E%3Cpath d='M30 0 L30 30 M60 51.96 L30 30 M0 51.96 L30 30' stroke='%233b82f6' stroke-width='0.4' stroke-opacity='0.3'/%3E%3C/svg%3E");
}

/* --- Floating Binary Particle Container --- */
.binary-particle {
  position: fixed;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--neon-green);
  opacity: 0;
  pointer-events: none;
  z-index: 2;
  animation: floatUpBinary linear forwards;
  text-shadow: 0 0 4px var(--neon-green-glow);
}
@keyframes floatUpBinary {
  0% { opacity: 0; transform: translateY(0) rotate(0deg); }
  15% { opacity: 0.5; }
  85% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-100vh) rotate(360deg); }
}

/* --- Section Divider Glow Line --- */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-green), var(--neon-cyan), transparent);
  margin: 0 auto;
  opacity: 0.5;
  box-shadow: 0 0 10px var(--neon-green-glow);
}

/* --- Smooth page load entrance --- */
body.page-loading {
  opacity: 1;
}
body.page-loaded {
  opacity: 1;
}

/* --- Particle explosion on project card click --- */
.card-spark {
  position: fixed;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  animation: sparkFly 0.7s ease-out forwards;
}
@keyframes sparkFly {
  0% { opacity: 1; transform: translate(0, 0) scale(1); }
  100% { opacity: 0; transform: translate(var(--sx), var(--sy)) scale(0); }
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLET & MOBILE)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid, .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .metric-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    background: rgba(4, 9, 20, 0.98);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: none;
  }
  .nav-links.show {
    display: flex;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .projects-grid, .skills-grid {
    grid-template-columns: 1fr;
  }
  .metric-strip {
    grid-template-columns: 1fr;
  }
}