/* ============================================
   ARMAAN MULLA — CYBER FORTRESS PORTFOLIO
   Design System & Complete Styles
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #0f0f1a;
  --bg-card: #12121f;
  --bg-card-hover: #1a1a2e;
  --text-primary: #e8e8f0;
  --text-secondary: #8888aa;
  --text-muted: #555570;
  --accent-cyan: #00f0ff;
  --accent-green: #39ff14;
  --accent-purple: #a855f7;
  --accent-red: #ff3333;
  --accent-cyan-dim: rgba(0, 240, 255, 0.15);
  --accent-green-dim: rgba(57, 255, 20, 0.1);
  --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
  --glow-green: 0 0 20px rgba(57, 255, 20, 0.3);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(0, 240, 255, 0.2);

  /* Typography */
  --font-mono: 'Space Mono', 'Courier New', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;
  --container-padding: 0 24px;

  /* Transitions */
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s var(--ease-smooth);
  --transition-medium: 0.4s var(--ease-smooth);
  --transition-slow: 0.8s var(--ease-smooth);
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-cyan) var(--bg-primary);
}

html, body {
  margin: 0;
  padding: 0;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#main-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: auto; /* Allow children to stack and exist beyond 100vh */
  transition: transform 0s linear; /* Instant jump handled by JS */
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  display: none;
}
html, body {
  -ms-overflow-style: none; /* IE and Edge */
  scrollbar-width: none; /* Firefox */
}

::selection {
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--accent-green);
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

/* ---------- Preloader ---------- */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

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

.preloader-text {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 1rem;
  letter-spacing: 2px;
}

.preloader-bar {
  width: 200px;
  height: 2px;
  background: var(--border-subtle);
  margin-top: 20px;
  border-radius: 1px;
  overflow: hidden;
}

.preloader-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
  border-radius: 1px;
  animation: preloaderFill 1.5s var(--ease-smooth) forwards;
}

@keyframes preloaderFill {
  to { width: 100%; }
}

/* ---------- Custom Cursor ---------- */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  mix-blend-mode: difference;
}

.cursor-ring {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--accent-cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-smooth), height 0.3s var(--ease-smooth),
              border-color 0.3s;
  opacity: 0.5;
}

.cursor-dot.hovering {
  width: 14px;
  height: 14px;
  background: var(--accent-green);
}

.cursor-ring.hovering {
  width: 60px;
  height: 60px;
  border-color: var(--accent-green);
  opacity: 0.3;
}

/* ---------- Navigation ---------- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition-medium), 
              box-shadow var(--transition-medium),
              padding var(--transition-medium);
}

#navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border-subtle);
  padding: 10px 0;
}

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

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 1px;
  position: relative;
}

.nav-logo::before {
  content: '>';
  color: var(--accent-green);
  margin-right: 6px;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-cyan);
  transition: width var(--transition-medium);
}

.nav-links a.active {
  color: var(--accent-cyan);
}

.nav-links a:hover {
  color: var(--accent-cyan);
  animation: nav-glitch 0.2s infinite;
}

@keyframes nav-glitch {
  0% { transform: translate(0); text-shadow: -2px 0 var(--accent-red), 2px 0 var(--accent-cyan); }
  25% { transform: translate(-1px, 1px); text-shadow: 2px 0 var(--accent-red), -2px 0 var(--accent-cyan); }
  50% { transform: translate(1px, -1px); text-shadow: -2px 0 var(--accent-cyan), 2px 0 var(--accent-green); }
  75% { transform: translate(-1px, -1px); text-shadow: 2px 0 var(--accent-red), -2px 0 var(--accent-green); }
  100% { transform: translate(0); text-shadow: -2px 0 var(--accent-red), 2px 0 var(--accent-cyan); }
}

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

/* Active nav glow indicator */
.nav-links a.active .nav-index {
  color: var(--accent-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
}

.nav-links a .nav-index {
  color: var(--accent-green);
  margin-right: 4px;
  font-size: 0.7rem;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent-cyan);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Section Common Styles ---------- */
section {
  position: relative;
  width: 100%;
  height: 100vh;
  padding: var(--section-padding);
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain; /* Isolate scroll behavior */
  scrollbar-width: none; /* Hide scrollbar for sections inside Firefox */
}

section::-webkit-scrollbar {
  display: none; /* Hide scrollbar inside sections on Chrome/Safari */
}

.section-header {
  margin-bottom: 56px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-green);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label::before {
  content: '//';
  color: var(--text-muted);
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.section-title .highlight {
  color: var(--accent-cyan);
}

.section-line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), transparent);
  margin-top: 20px;
}

/* ---------- HERO SECTION ---------- */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 0;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, var(--bg-primary) 75%);
  z-index: 1;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 24px;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  margin-bottom: 32px;
  background: rgba(0, 240, 255, 0.05);
  opacity: 0;
}

.hero-status .status-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(57, 255, 20, 0); }
}

.hero-name {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 16px;
  opacity: 0;
}

.hero-name .first-name {
  display: block;
  color: var(--text-primary);
}

.hero-name .last-name {
  display: block;
  color: var(--accent-cyan);
  text-shadow: var(--glow-cyan);
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  letter-spacing: 2px;
  margin-bottom: 40px;
  opacity: 0;
}

.hero-title .typed-text {
  color: var(--accent-green);
}

.hero-title .cursor-char {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent-green);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.8s step-end infinite;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 14px 32px;
  border: 1px solid var(--border-glow);
  background: transparent;
  color: var(--accent-cyan);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-medium);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-cyan-dim), transparent);
  transform: translateX(-100%);
  transition: transform var(--transition-medium);
}

.btn:hover {
  color: var(--bg-primary);
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.btn:hover::before {
  transform: translateX(0);
}

.btn-primary {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  border-color: var(--accent-cyan);
  font-weight: 700;
}

.btn-primary:hover {
  background: var(--accent-green);
  border-color: var(--accent-green);
  color: var(--bg-primary);
  box-shadow: var(--glow-green);
}

.btn:active {
  animation: btn-glitch 0.2s infinite;
}

@keyframes btn-glitch {
  0% { transform: skew(0deg) translate(0); filter: hue-rotate(0deg); }
  25% { transform: skew(-8deg) translate(-2px, 2px); filter: hue-rotate(-20deg) invert(0.1); }
  50% { transform: skew(8deg) translate(2px, -2px); filter: hue-rotate(20deg); }
  75% { transform: skew(-4deg) translate(-2px, -2px); filter: hue-rotate(-10deg) invert(0.2); }
  100% { transform: skew(0deg) translate(0); filter: hue-rotate(0deg); }
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
}

.hero-scroll-indicator span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-cyan), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ---------- ABOUT SECTION ---------- */
#about {
  background: var(--bg-secondary);
  position: relative;
}

#about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan-dim), transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 20px;
  line-height: 1.8;
}

.about-text .accent {
  color: var(--accent-cyan);
  font-weight: 600;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 36px;
}

.stat-card {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-medium);
}

.stat-card:hover::before {
  transform: scaleX(1);
}

.stat-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-cyan);
  line-height: 1;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 8px;
}

/* Certifications / Education cards */
.about-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.info-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  border-left: 3px solid var(--accent-cyan);
  transition: all var(--transition-medium);
}

.info-card:hover {
  border-left-color: var(--accent-green);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.info-card-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.info-card-title {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 700;
  margin-bottom: 4px;
}

.info-card-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.info-card-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ---------- EXPERIENCE SECTION ---------- */
#experience {
  position: relative;
}

.timeline {
  position: relative;
  padding-left: 40px;
  max-width: 900px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-green), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  transition: all var(--transition-medium);
}

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

.timeline-item::before {
  content: '';
  position: absolute;
  left: -48px;
  top: 32px;
  width: 14px;
  height: 14px;
  background: var(--bg-primary);
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
  z-index: 1;
  transition: all var(--transition-fast);
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: -34px;
  top: 38px;
  width: 26px;
  height: 2px;
  background: var(--border-glow);
}

.timeline-item:hover {
  border-color: var(--border-glow);
  transform: translateX(4px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.timeline-item:hover::before {
  background: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.timeline-company {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent-cyan);
  font-weight: 700;
}

.timeline-role {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-top: 2px;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-green);
  letter-spacing: 1px;
  padding: 4px 12px;
  border: 1px solid var(--accent-green-dim);
  border-radius: 4px;
  background: var(--accent-green-dim);
  white-space: nowrap;
}

.timeline-details {
  list-style: none;
  margin-top: 12px;
}

.timeline-details li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.timeline-details li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-size: 0.8rem;
}

.timeline-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 4px 10px;
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
  border-radius: 4px;
  letter-spacing: 0.5px;
}

/* ---------- PROJECTS SECTION ---------- */
#projects {
  background: var(--bg-secondary);
  position: relative;
}

#projects::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan-dim), transparent);
}

.projects-wrapper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.project-card {
  padding: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-medium);
  display: flex;
  flex-direction: column;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-cyan-dim), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-medium);
}

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

.project-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.project-scan-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  transform: translateX(-100%);
}

.project-number {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  color: var(--border-subtle);
  line-height: 1;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.project-type {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.project-name {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--text-primary);
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
  flex-grow: 1;
}

.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.project-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: relative;
  z-index: 1;
  transition: color var(--transition-fast), gap var(--transition-fast);
  margin-top: auto;
}

.project-link:hover {
  color: var(--accent-green);
  gap: 10px;
}

.project-link .arrow {
  transition: transform var(--transition-fast);
}

.project-link:hover .arrow {
  transform: translateX(3px);
}

/* ---------- SKILLS SECTION ---------- */
#skills {
  position: relative;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.skill-category {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.skill-category::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s var(--ease-smooth);
}

.skill-category:hover::after {
  transform: scaleX(1);
}

.skill-category:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.skill-category-icon {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.skill-category-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 700;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.skill-item {
  margin-bottom: 14px;
}

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

.skill-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.skill-name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.skill-percent {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 700;
  letter-spacing: 1px;
}

.skill-percent::before {
  content: '[';
  color: var(--text-muted);
  margin-right: 4px;
}

.skill-percent::after {
  content: ']';
  color: var(--text-muted);
  margin-left: 4px;
}

.skill-bar {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
  box-shadow: 0 0 10px var(--accent-cyan);
  /* transition removed to allow GSAP control */
  
  /* Cyber segmented mask */
  -webkit-mask-image: repeating-linear-gradient(to right, #000 0, #000 6px, transparent 6px, transparent 8px);
  mask-image: repeating-linear-gradient(to right, #000 0, #000 6px, transparent 6px, transparent 8px);
}

/* ---------- CONTACT SECTION ---------- */
#contact {
  background: var(--bg-secondary);
  position: relative;
}

#contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan-dim), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.contact-text h3 {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.contact-text p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 28px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  transition: all var(--transition-medium);
  text-decoration: none;
  cursor: pointer;
}

.contact-link-item:hover {
  border-color: var(--border-glow);
  transform: translateX(6px);
  background: var(--bg-card-hover);
}

.contact-link-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  font-size: 1rem;
  color: var(--accent-cyan);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.contact-link-item:hover .contact-link-icon {
  background: var(--accent-cyan);
  color: var(--bg-primary);
}

.contact-link-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact-link-value {
  color: var(--text-primary);
  font-size: 0.9rem;
  margin-top: 2px;
}

/* Terminal-style contact */
.contact-terminal {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

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

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.9;
  height: 480px;
  overflow-y: auto;
}

.terminal-line {
  margin-bottom: 3px;
}

.terminal-prompt {
  color: var(--accent-green);
}

.terminal-command {
  color: var(--text-primary);
}

.terminal-output {
  color: var(--accent-cyan);
  padding-left: 16px;
  white-space: pre-wrap;
}

.terminal-comment {
  color: var(--text-muted);
}

.interactive-line {
  display: flex;
  align-items: center;
}

.terminal-input {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1em;
  outline: none;
  flex-grow: 1;
  padding: 0;
  caret-color: var(--accent-green);
}

/* ---------- FOOTER ---------- */
#footer {
  padding: 40px 0;
  text-align: center;
  position: relative;
}

#footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.footer-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 1px;
}

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

/* ---------- Utility / Animation Classes ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
}

/* Glitch text effect */
.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0; /* Hidden initially */
  pointer-events: none;
}

.glitch:hover::before,
.glitch:hover::after {
  opacity: 1; /* Show on hover */
}

.glitch:hover::before {
  color: var(--accent-cyan);
  animation: glitch-1 0.4s infinite linear alternate-reverse;
  clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.glitch:hover::after {
  color: var(--accent-red);
  animation: glitch-2 0.4s infinite linear alternate-reverse;
  clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
  0%   { transform: translate(0); }
  25%  { transform: translate(-3px, 1px); }
  50%  { transform: translate(3px, -1px); }
  75%  { transform: translate(-1px, 2px); }
  100% { transform: translate(2px, -2px); }
}

@keyframes glitch-2 {
  0%   { transform: translate(0); }
  25%  { transform: translate(2px, -1px); }
  50%  { transform: translate(-2px, 1px); }
  75%  { transform: translate(1px, -2px); }
  100% { transform: translate(-1px, 2px); }
}

/* ---------- RESPONSIVE ---------- */

/* Large desktop — keep 3 column projects */
@media (max-width: 1280px) {
  .projects-wrapper {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  
  .project-card {
    padding: 28px;
  }

  .project-name {
    font-size: 1.1rem;
  }
}

/* Tablet */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px 0;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .skills-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .projects-wrapper {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .project-card {
    padding: 28px;
  }

  .project-card:last-child {
    grid-column: 1 / -1;
    max-width: 50%;
    justify-self: center;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --section-padding: 64px 0;
    --container-padding: 0 16px;
  }

  /* Nav Mobile */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    transition: right var(--transition-medium);
    border-left: 1px solid var(--border-subtle);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-toggle {
    display: flex;
  }

  /* Hero */
  .hero-name {
    font-size: clamp(2rem, 10vw, 3.5rem);
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  /* About */
  .about-stats {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .stat-card {
    padding: 16px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  /* Skills */
  .skills-grid {
    grid-template-columns: 1fr;
  }

  /* Projects */
  .projects-wrapper {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .project-card {
    padding: 24px;
  }

  .project-card:last-child {
    max-width: 100%;
  }

  .project-number {
    font-size: 2.5rem;
  }

  /* Timeline */
  .timeline {
    padding-left: 28px;
  }

  .timeline-item {
    padding: 20px;
  }

  .timeline-item::before {
    left: -36px;
    width: 12px;
    height: 12px;
  }

  .timeline-item::after {
    left: -24px;
    width: 16px;
  }

  .timeline-header {
    flex-direction: column;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
  }

  /* Section headers */
  .section-title {
    font-size: clamp(1.5rem, 5vw, 2rem);
  }

  /* Disable glitch effect on mobile */
  .glitch::before,
  .glitch::after {
    display: none;
  }

  /* Hide custom cursor on mobile */
  .cursor-dot,
  .cursor-ring {
    display: none !important;
  }
}

/* Small phones */
@media (max-width: 400px) {
  .about-stats {
    grid-template-columns: 1fr;
  }

  .hero-name {
    font-size: 2rem;
  }
}

/* ---------- Glitch Click Pop Animation ---------- */
.glitch-pop {
  position: fixed;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
}

.glitch-particle {
  position: absolute;
  top: 0; 
  left: 0;
  opacity: 0.9;
  mix-blend-mode: screen;
  animation: particle-pop 0.4s cubic-bezier(0.1, 0.9, 0.2, 1) forwards;
  white-space: nowrap;
}

@keyframes particle-pop {
  0% { 
    transform: translate(0, 0) scale(1) skew(0deg); 
    opacity: 1; 
  }
  50% { 
    transform: translate(calc(var(--tx) * 0.7), calc(var(--ty) * 0.3)) scale(1.2) skew(20deg); 
  }
  100% { 
    transform: translate(var(--tx), var(--ty)) scale(0.1) skew(-10deg); 
    opacity: 0; 
  }
}

/* ---------- Cyber Breach Section Glitch ---------- */
.section-transition-glitch {
  position: fixed;
  inset: 0;
  z-index: 99999;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
}

.glitch-bg {
  position: absolute;
  inset: 0;
  background: var(--bg-primary);
  opacity: 0;
  animation: breachFlash 0.5s steps(2, end) forwards;
}

@keyframes breachFlash {
  0% { opacity: 0; background: var(--accent-cyan); }
  20% { opacity: 0.8; background: var(--bg-primary); }
  40% { opacity: 0.2; background: var(--accent-red); }
  60% { opacity: 1; background: var(--bg-primary); }
  100% { opacity: 0; }
}

.glitch-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0;
  mix-blend-mode: overlay;
  animation: noiseShow 0.4s linear forwards;
}

@keyframes noiseShow {
  0% { opacity: 0; }
  50% { opacity: 0.3; }
  100% { opacity: 0; }
}

.glitch-scanner {
  position: absolute;
  top: -10%;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-green);
  box-shadow: 0 0 20px var(--accent-green);
  animation: scanDown 0.4s linear forwards;
}

@keyframes scanDown {
  0% { top: -10%; }
  100% { top: 110%; }
}

.glitch-text-container {
  position: relative;
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 5vw;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 1rem;
  z-index: 1;
}

.glitch-text-core {
  position: relative;
  display: block;
}

.glitch-text-before, .glitch-text-after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.8;
}

.glitch-text-before {
  color: var(--accent-red);
  z-index: -1;
  animation: textGlitchLeft 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) both infinite;
}

.glitch-text-after {
  color: var(--accent-cyan);
  z-index: -2;
  animation: textGlitchRight 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) reverse both infinite;
}

@keyframes textGlitchLeft {
  0% { transform: translate(0); }
  20% { transform: translate(-3px, 3px); }
  40% { transform: translate(-3px, -3px); }
  60% { transform: translate(3px, 3px); }
  80% { transform: translate(3px, -3px); }
  100% { transform: translate(0); }
}

@keyframes textGlitchRight {
  0% { transform: translate(0); }
  20% { transform: translate(3px, -3px); }
  40% { transform: translate(3px, 3px); }
  60% { transform: translate(-3px, -3px); }
  80% { transform: translate(-3px, 3px); }
  100% { transform: translate(0); }
}

body.is-glitching {
  animation: hackerShake 0.1s infinite;
}

@keyframes hackerShake {
  0% { transform: translate(0); }
  25% { transform: translate(2px, -2px); }
  50% { transform: translate(-2px, 2px); }
  75% { transform: translate(2px, 2px); }
  100% { transform: translate(0); }
}