/* Import modern fonts from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Share+Tech+Mono&family=Orbitron:wght@500;700;900&display=swap');

/* CSS Custom Properties for Core Theme */
:root {
  --bg-primary: #060913;
  --bg-secondary: #0c111e;
  --bg-tertiary: #131b2e;
  --bg-card: #0f1626;
  --bg-console: #05070c;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-cyan: #00F2FE;
  --accent-blue: #4FACFE;
  --accent-green: #10b981;
  --accent-orange: #f59e0b;
  --accent-red: #ef4444;
  
  --border-glow: rgba(0, 242, 254, 0.15);
  --border-color: #1e293b;
  --border-focus: #3b82f6;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
  --font-display: 'Orbitron', sans-serif;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  
  --grid-color: rgba(0, 242, 254, 0.02);
}

/* Global Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-cyan) var(--bg-primary);
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Subtle Network Grid Background Overlay */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* Custom Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-blue);
  box-shadow: 0 0 8px var(--accent-blue);
}

/* Typography base styles */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.25rem;
  font-family: var(--font-sans);
  position: relative;
  margin-bottom: 3rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* Section Header Decoration */
.section-title {
  text-align: center;
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

.section-title span {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
  margin: 0.75rem auto 0;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

/* Reusable Components */

/* Glass Container Layouts */
.glass-panel {
  background: rgba(12, 17, 30, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition-normal);
  position: relative;
}

.glass-panel:hover {
  border-color: rgba(0, 242, 254, 0.3);
  box-shadow: 0 8px 30px rgba(0, 242, 254, 0.05);
}

/* Button UI */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  color: #040814;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(0, 242, 254, 0.6);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(15, 22, 38, 0.6);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(0, 242, 254, 0.05);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
  transform: translateY(-2px);
}

.btn-link {
  background: transparent;
  border: none;
  color: var(--accent-cyan);
  padding: 0;
  font-weight: 500;
  cursor: pointer;
}

.btn-link:hover {
  color: var(--accent-blue);
  text-decoration: underline;
}

/* -----------------------------------------
   1. NAVIGATION HEADER
----------------------------------------- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(6, 9, 19, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
  transition: padding var(--transition-normal);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  text-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
}

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

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2.25rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  transition: var(--transition-normal);
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Pulsing Status Dot */
.noc-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 0.4rem 0.8rem;
  border-radius: 50px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  position: relative;
}

.status-dot::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--accent-green);
  border-radius: 50%;
  animation: pulse-ring 2s cubic-bezier(0.215, 0.610, 0.355, 1) infinite;
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.7);
    opacity: 0.9;
  }
  100% {
    transform: scale(2.5);
    opacity: 0;
  }
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* -----------------------------------------
   2. HERO SECTION & LIVE CONSOLE
----------------------------------------- */
.hero {
  min-height: 100vh;
  padding: 8.5rem 2rem 5rem;
  display: flex;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3.5rem;
  align-items: center;
  width: 100%;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-subtitle {
  font-family: var(--font-display);
  color: var(--accent-cyan);
  font-size: 1.1rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.15;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary) 50%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title span {
  display: block;
  font-size: 1.8rem;
  font-weight: 600;
  margin-top: 0.5rem;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-tagline {
  font-size: 1.25rem;
  color: var(--text-primary);
  font-weight: 500;
  border-left: 3px solid var(--accent-cyan);
  padding-left: 1rem;
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
  margin-top: 1rem;
}

/* CLI Console Mockup */
.console-box {
  background: var(--bg-console);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 1px 1px rgba(0, 242, 254, 0.15);
  overflow: hidden;
  height: 400px;
  display: flex;
  flex-direction: column;
}

.console-header {
  background: #111827;
  padding: 0.6rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #1e293b;
}

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

.console-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.console-dot.red { background-color: var(--accent-red); }
.console-dot.yellow { background-color: var(--accent-orange); }
.console-dot.green { background-color: var(--accent-green); }

.console-title {
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.console-body {
  padding: 1.25rem;
  overflow-y: auto;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.console-body::-webkit-scrollbar {
  width: 6px;
}
.console-body::-webkit-scrollbar-thumb {
  background: #1e293b;
}

.console-line {
  color: #a7f3d0;
  line-height: 1.5;
  word-break: break-all;
}

.console-line.input {
  color: #38bdf8;
}

.console-line.input::before {
  content: "admin@link3-core-re0:~$ ";
  color: #f43f5e;
}

.console-line.success {
  color: var(--accent-green);
}

.console-line.alert {
  color: var(--accent-orange);
  font-weight: bold;
}

.console-line.critical {
  color: var(--accent-red);
}

.console-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background-color: var(--accent-cyan);
  animation: blink 1s step-end infinite;
  vertical-align: middle;
  margin-left: 2px;
}

@keyframes blink {
  from, to { background-color: transparent }
  50% { background-color: var(--accent-cyan) }
}

/* -----------------------------------------
   3. NOC DASHBOARD (LIVE STATS)
----------------------------------------- */
.dashboard {
  background: rgba(8, 12, 24, 0.8);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 2.5rem 2rem;
  position: relative;
  z-index: 2;
}

.dashboard-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  background: rgba(15, 22, 38, 0.4);
  border: 1px solid rgba(30, 41, 59, 0.4);
  transition: var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 242, 254, 0.25);
  background: rgba(15, 22, 38, 0.6);
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.05);
}

.stat-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(0, 242, 254, 0.05);
  border: 1px solid rgba(0, 242, 254, 0.15);
  border-radius: 8px;
  color: var(--accent-cyan);
  font-size: 1.25rem;
}

.stat-card:hover .stat-icon-wrapper {
  color: #040814;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  border-color: transparent;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
}

.stat-details {
  display: flex;
  flex-direction: column;
}

.stat-val {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

/* -----------------------------------------
   4. ABOUT SECTION
----------------------------------------- */
.about {
  padding: 8rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4.5rem;
  align-items: center;
}

.about-img-box {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Technical placeholder illustration */
.about-svg-network {
  width: 100%;
  max-width: 420px;
  height: auto;
  filter: drop-shadow(0 0 15px rgba(0, 242, 254, 0.15));
}

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

.about-highlight {
  font-size: 1.25rem;
  color: var(--accent-cyan);
  font-weight: 500;
}

.about-para {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.experience-badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 1rem;
}

.exp-badge-item {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  background: rgba(15, 22, 38, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: var(--transition-normal);
}

.exp-badge-item:hover {
  border-color: rgba(0, 242, 254, 0.2);
  transform: translateY(-2px);
}

.exp-badge-num {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--accent-cyan);
  font-weight: 700;
}

.exp-badge-lbl {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* -----------------------------------------
   5. CORE EXPERTISE & TECHNOLOGY STACK
----------------------------------------- */
.expertise-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 8rem 2rem;
}

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

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 6rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.25rem 2rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition-normal);
}

.skill-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-blue));
  transition: var(--transition-normal);
}

.skill-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 242, 254, 0.2);
  box-shadow: 0 10px 30px rgba(0, 242, 254, 0.05);
}

.skill-card:hover::before {
  height: 100%;
}

.skill-icon {
  font-size: 2rem;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  display: inline-block;
}

.skill-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.skill-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-list li {
  color: var(--text-secondary);
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.skill-list li::before {
  content: "→";
  color: var(--accent-cyan);
  font-weight: bold;
}

/* Technology Stack Badges */
.tech-stack-container {
  background: rgba(15, 22, 38, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 3rem;
}

.tech-stack-title {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 2.5rem;
  font-family: var(--font-display);
  letter-spacing: 1px;
}

.tech-groups {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.tech-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.tech-group-title {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
  padding-bottom: 0.5rem;
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.tech-badge {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-normal);
}

.tech-badge:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.15);
  transform: translateY(-2px);
}

/* Specific styling for major vendors */
.tech-badge.huawei:hover { border-color: #ef4444; color: #ef4444; box-shadow: 0 0 15px rgba(239, 68, 68, 0.2); }
.tech-badge.juniper:hover { border-color: #10b981; color: #10b981; box-shadow: 0 0 15px rgba(16, 185, 129, 0.2); }
.tech-badge.cisco:hover { border-color: #3b82f6; color: #3b82f6; box-shadow: 0 0 15px rgba(59, 130, 246, 0.2); }
.tech-badge.mikrotik:hover { border-color: #f59e0b; color: #f59e0b; box-shadow: 0 0 15px rgba(245, 158, 11, 0.2); }

/* -----------------------------------------
   6. EXPERIENCE TIMELINE
----------------------------------------- */
.timeline-section {
  padding: 8rem 2rem;
}

.timeline-container {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

/* The vertical line */
.timeline-container::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-cyan), var(--border-color) 70%, transparent 100%);
  transform: translateX(-50%);
  z-index: 1;
}

.timeline-item {
  position: relative;
  width: 50%;
  margin-bottom: 4rem;
  z-index: 2;
}

.timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 3rem;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 3rem;
}

/* Timeline center marker */
.timeline-marker {
  position: absolute;
  top: 6px;
  left: 100%;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  transform: translateX(-50%);
  z-index: 10;
  transition: var(--transition-normal);
}

.timeline-item:nth-child(even) .timeline-marker {
  left: 0;
}

.timeline-item:hover .timeline-marker {
  background: var(--accent-cyan);
  box-shadow: 0 0 20px var(--accent-cyan);
  transform: translateX(-50%) scale(1.2);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.25rem;
  transition: var(--transition-normal);
}

.timeline-card:hover {
  border-color: rgba(0, 242, 254, 0.25);
  box-shadow: 0 10px 30px rgba(0, 242, 254, 0.05);
  transform: translateY(-3px);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
  display: block;
}

.timeline-role {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.timeline-company {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.timeline-company::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-blue);
}

.timeline-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.timeline-details li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  position: relative;
  padding-left: 1.25rem;
}

.timeline-details li::before {
  content: "»";
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-weight: bold;
}

/* -----------------------------------------
   7. FEATURED IMPACT / ACHIEVEMENTS
----------------------------------------- */
.impact-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 8rem 2rem;
}

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

.impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.impact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.impact-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 242, 254, 0.3);
  box-shadow: 0 12px 35px rgba(0, 242, 254, 0.06);
}

.impact-icon-box {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(0, 242, 254, 0.05);
  border: 1px solid rgba(0, 242, 254, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  transition: var(--transition-normal);
}

.impact-card:hover .impact-icon-box {
  color: #040814;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  border-color: transparent;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
}

.impact-card-title {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.impact-card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* -----------------------------------------
   8. NETWORK LAB & CASE STUDIES
----------------------------------------- */
.lab-section {
  padding: 8rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.lab-desc-intro {
  text-align: center;
  color: var(--text-secondary);
  max-width: 600px;
  margin: -1.5rem auto 3.5rem;
}

.lab-module {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.lab-nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.lab-tab-btn {
  background: rgba(15, 22, 38, 0.4);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-align: left;
  transition: var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lab-tab-btn:hover {
  background: rgba(15, 22, 38, 0.8);
  border-color: rgba(0, 242, 254, 0.3);
  color: var(--text-primary);
}

.lab-tab-btn.active {
  background: linear-gradient(90deg, rgba(0, 242, 254, 0.1), rgba(79, 172, 254, 0.05));
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.08);
}

.lab-tab-btn::after {
  content: "»";
  opacity: 0.3;
  transition: var(--transition-fast);
}

.lab-tab-btn.active::after {
  opacity: 1;
  transform: translateX(3px);
}

.lab-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.5rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.lab-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.lab-header h3 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.lab-header .lab-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: rgba(0, 242, 254, 0.1);
  color: var(--accent-cyan);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.lab-body {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 2.5rem;
}

.lab-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.lab-info-section h4 {
  font-size: 0.95rem;
  text-transform: uppercase;
  color: var(--accent-cyan);
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.lab-info-section p {
  color: var(--text-secondary);
  font-size: 0.98rem;
}

/* Dynamic SVG network topology viewer */
.lab-visualizer {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.lab-diagram-container {
  background: #05070c;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.lab-diagram-svg {
  width: 100%;
  height: 100%;
  max-height: 230px;
}

/* Console Configuration Snippet Viewer */
.lab-config-container {
  grid-column: 1 / -1;
  background: var(--bg-console);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.lab-config-header {
  background: #111827;
  padding: 0.75rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #1e293b;
}

.lab-config-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.lab-config-copy {
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: var(--text-secondary);
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  font-family: var(--font-mono);
  transition: var(--transition-fast);
}

.lab-config-copy:hover {
  background: rgba(0, 242, 254, 0.05);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.lab-config-body {
  padding: 1.25rem;
  overflow-x: auto;
  max-height: 350px;
}

.lab-config-body pre {
  margin: 0;
}

.lab-config-body code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #e2e8f0;
  line-height: 1.5;
  white-space: pre;
}

/* Anonymized configuration warning footer */
.lab-footnote {
  grid-column: 1 / -1;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  border-top: 1px dashed var(--border-color);
  padding-top: 1rem;
  margin-top: 1rem;
}

/* -----------------------------------------
   9. CERTIFICATIONS
----------------------------------------- */
.certs-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 8rem 2rem;
}

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

.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.cert-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 242, 254, 0.25);
  box-shadow: 0 10px 30px rgba(0, 242, 254, 0.05);
}

.cert-icon {
  font-size: 3rem;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
}

.cert-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.cert-issuer {
  color: var(--accent-blue);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* -----------------------------------------
   10. CONTACT SECTION & FOOTER
----------------------------------------- */
.contact-section {
  padding: 8rem 2rem;
}

.contact-container {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

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

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.contact-detail-icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: rgba(0, 242, 254, 0.05);
  border: 1px solid rgba(0, 242, 254, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 1.25rem;
}

.contact-detail-val {
  display: flex;
  flex-direction: column;
}

.contact-detail-val span:first-child {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-detail-val a, .contact-detail-val span:last-child {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-primary);
}

.contact-detail-val a:hover {
  color: var(--accent-cyan);
}

.social-links {
  display: flex;
  gap: 1.25rem;
  margin-top: 1rem;
}

.social-btn {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(15, 22, 38, 0.4);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition-normal);
}

.social-btn:hover {
  background: rgba(0, 242, 254, 0.05);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
}

/* Contact Form Grid styling */
.contact-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 3rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: var(--font-sans);
}

.form-input {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.85rem 1.25rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  transition: var(--transition-normal);
  width: 100%;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.15);
}

.form-input::placeholder {
  color: var(--text-muted);
}

textarea.form-input {
  resize: vertical;
  min-height: 140px;
}

/* Contact feedback styling */
.form-feedback {
  padding: 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  display: none;
  font-family: var(--font-mono);
}

.form-feedback.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
}

.form-feedback.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--accent-red);
}

/* Footer layout */
footer {
  background: #04060d;
  border-top: 1px solid var(--border-color);
  padding: 3rem 2rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-stats {
  display: flex;
  gap: 2rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-stat-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-stat-item span {
  color: var(--accent-cyan);
}

/* -----------------------------------------
   11. RESPONSIVE DESIGN (MEDIA QUERIES)
----------------------------------------- */

@media (max-width: 1024px) {
  h2 {
    font-size: 2rem;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-content {
    text-align: center;
    align-items: center;
  }
  
  .hero-desc {
    margin: 0 auto;
  }
  
  .hero-tagline {
    border-left: none;
    border-top: 2px solid var(--accent-cyan);
    border-bottom: 2px solid var(--accent-cyan);
    padding: 0.75rem 0;
  }
  
  .dashboard-container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .about-img-box {
    order: 2;
  }
  
  .lab-module {
    grid-template-columns: 1fr;
  }
  
  .lab-nav {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }
  
  .lab-tab-btn {
    white-space: nowrap;
  }
  
  .lab-tab-btn::after {
    display: none;
  }
  
  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 65px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 65px);
    background: var(--bg-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    transition: var(--transition-normal);
    z-index: 999;
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav-right {
    gap: 1rem;
  }
  
  .noc-status-badge {
    padding: 0.3rem 0.6rem;
  }
  
  .hero-title {
    font-size: 2.75rem;
  }
  
  .timeline-container::before {
    left: 2rem;
  }
  
  .timeline-item {
    width: 100%;
    margin-bottom: 2.5rem;
  }
  
  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    left: 0;
    padding-left: 3.5rem;
    padding-right: 0;
  }
  
  .timeline-marker {
    left: 2rem !important;
  }
  
  .lab-body {
    grid-template-columns: 1fr;
  }
  
  .certs-grid {
    grid-template-columns: 1fr;
  }
  
  .form-group-row {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .contact-form-wrapper {
    padding: 2rem;
  }
  
  .footer-container {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .btn {
    width: 100%;
  }
  
  .dashboard-container {
    grid-template-columns: 1fr;
  }
  
  .experience-badges {
    grid-template-columns: 1fr;
  }
  
  .tech-badges {
    gap: 0.75rem;
  }
  
  .tech-badge {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }
  
  .timeline-card {
    padding: 1.5rem;
  }
}