/* ==========================================================================
   MOHAMED YASIN - ENTERPRISE BI & DATA SCIENCE PORTFOLIO
   Design System: Linear / Vercel Dark & Light Theme
   ========================================================================== */

:root {
  /* Dark Theme Colors */
  --bg-dark: #090a10;
  --bg-card: rgba(18, 21, 33, 0.75);
  --bg-card-hover: rgba(28, 33, 51, 0.92);
  --bg-card-solid: #121521;
  --bg-nav: rgba(9, 10, 16, 0.88);
  --bg-input: #0e101a;
  
  --border-glass: rgba(122, 162, 247, 0.15);
  --border-glass-hover: rgba(122, 162, 247, 0.4);
  
  --accent-blue: #7aa2f7;
  --accent-purple: #bb9af7;
  --accent-cyan: #7dcfff;
  --accent-teal: #0db9d7;
  --accent-green: #9ece6a;
  --accent-coral: #f7768e;
  --accent-gold: #e0af68;
  
  --text-main: #c0caf5;
  --text-muted: #9aa5ce;
  --text-bright: #ffffff;
  --text-dim: #565f89;
  
  --glow-blue: 0 0 25px rgba(122, 162, 247, 0.25);
  --glow-purple: 0 0 25px rgba(187, 154, 247, 0.25);
  --glow-cyan: 0 0 25px rgba(125, 207, 255, 0.25);
  
  --font-heading: 'Outfit', -apple-system, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --font-code: 'JetBrains Mono', monospace;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-theme="light"] {
  --bg-dark: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --bg-card-solid: #ffffff;
  --bg-nav: rgba(248, 250, 252, 0.88);
  --bg-input: #f1f5f9;
  
  --border-glass: rgba(37, 99, 235, 0.15);
  --border-glass-hover: rgba(37, 99, 235, 0.35);
  
  --accent-blue: #2563eb;
  --accent-purple: #7c3aed;
  --accent-cyan: #0284c7;
  --accent-teal: #0d9488;
  --accent-green: #16a34a;
  --accent-coral: #dc2626;
  --accent-gold: #d97706;
  
  --text-main: #334155;
  --text-muted: #64748b;
  --text-bright: #0f172a;
  --text-dim: #94a3b8;
  
  --glow-blue: 0 0 25px rgba(37, 99, 235, 0.15);
  --glow-purple: 0 0 25px rgba(124, 58, 237, 0.15);
  --glow-cyan: 0 0 25px rgba(2, 132, 199, 0.15);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* Custom Mouse Cursor */
.custom-cursor-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-blue);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background-color 0.2s;
}

.custom-cursor-outline {
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--accent-cyan);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease-out, width 0.2s, height 0.2s;
}

body.cursor-hover .custom-cursor-dot {
  width: 14px;
  height: 14px;
  background-color: var(--accent-purple);
}

body.cursor-hover .custom-cursor-outline {
  width: 54px;
  height: 54px;
  border-color: var(--accent-purple);
}

/* Branded Splash Screen */
#splash-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--bg-dark);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#splash-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.splash-logo {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-bright);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.splash-progress-bar {
  width: 240px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.splash-progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  animation: splashFill 1.1s ease-in-out forwards;
}

@keyframes splashFill {
  0% { width: 0%; }
  100% { width: 100%; }
}

.splash-sub {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--accent-blue);
  letter-spacing: 0.1em;
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  opacity: 0.65;
}

.ambient-blur-1 {
  position: fixed;
  top: -10%;
  left: 15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(122, 162, 247, 0.12) 0%, rgba(0, 0, 0, 0) 70%);
  z-index: -1;
  pointer-events: none;
  filter: blur(60px);
}
.ambient-blur-2 {
  position: fixed;
  top: 40%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(187, 154, 247, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
  z-index: -1;
  pointer-events: none;
  filter: blur(80px);
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  color: var(--text-bright);
  font-weight: 700;
  line-height: 1.25;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-cyan) 50%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(122, 162, 247, 0.1);
  border: 1px solid rgba(122, 162, 247, 0.25);
  border-radius: 50px;
  color: var(--accent-blue);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.award-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 1.1rem;
  background: rgba(224, 175, 104, 0.12);
  border: 1px solid rgba(224, 175, 104, 0.35);
  border-radius: 50px;
  color: var(--accent-gold);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.section-header h2 { font-size: 2.25rem; margin-bottom: 0.75rem; }
.section-header p { color: var(--text-muted); font-size: 1.05rem; }

/* Navigation Bar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  transition: var(--transition-fast);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 75px;
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-bright);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-logo i { color: var(--accent-blue); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a:hover, .nav-links a.active { color: var(--accent-cyan); }
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-blue);
  transition: var(--transition-fast);
  border-radius: 2px;
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.theme-toggle-btn:hover {
  transform: scale(1.08);
  border-color: var(--accent-blue);
  box-shadow: var(--glow-blue);
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  background: rgba(158, 206, 106, 0.1);
  border: 1px solid rgba(158, 206, 106, 0.3);
  border-radius: 50px;
  color: var(--accent-green);
  font-size: 0.8rem;
  font-weight: 600;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(158, 206, 106, 0.7);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(158, 206, 106, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(158, 206, 106, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(158, 206, 106, 0); }
}

/* Hero Section */
.hero {
  padding-top: 150px;
  padding-bottom: 90px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.2rem;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  line-height: 1.15;
}

.typewriter-wrapper {
  font-family: var(--font-code);
  font-size: 1.15rem;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.2rem;
}

.typewriter-prefix { color: var(--text-dim); }
.typewriter-text {
  font-weight: 600;
  border-right: 2px solid var(--accent-blue);
  animation: blink 0.75s step-end infinite;
  padding-right: 4px;
}

@keyframes blink {
  from, to { border-color: transparent }
  50% { border-color: var(--accent-blue); }
}

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

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.8rem;
  background: linear-gradient(135deg, #3d59a1 0%, #7aa2f7 100%);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 12px;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(122, 162, 247, 0.3);
  transition: var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(122, 162, 247, 0.5);
  background: linear-gradient(135deg, #4c6ec4 0%, #89b0ff 100%);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.8rem;
  background: var(--bg-card);
  color: var(--text-bright);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 12px;
  text-decoration: none;
  border: 1px solid var(--border-glass);
  transition: var(--transition-normal);
  backdrop-filter: blur(12px);
  cursor: pointer;
}

.btn-secondary:hover {
  transform: translateY(-3px);
  background: var(--bg-card-hover);
  border-color: var(--accent-purple);
  box-shadow: var(--glow-purple);
}

.social-pills {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.social-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.social-pill:hover {
  color: var(--text-bright);
  border-color: var(--accent-blue);
  transform: translateY(-2px);
  background: var(--bg-card-hover);
}

.social-pill.linkedin i { color: #0a66c2; }
.social-pill.email i { color: var(--accent-purple); }
.social-pill.phone i { color: var(--accent-green); }
.social-pill.github i { color: var(--text-bright); }
.social-pill.location i { color: var(--accent-coral); }

.hero-visual { position: relative; }
.hero-glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  padding: 2rem;
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.glass-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.window-dots { display: flex; gap: 6px; }
.window-dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.glass-card-title {
  font-family: var(--font-code);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.metrics-counter-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.metric-box {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  padding: 1.25rem;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.metric-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-blue);
}

.metric-box.purple::before { background: var(--accent-purple); }
.metric-box.cyan::before { background: var(--accent-cyan); }
.metric-box.gold::before { background: var(--accent-gold); }

.metric-box:hover {
  border-color: var(--accent-blue);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.metric-number {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Certifications Section */
.certifications-section { padding: 90px 0; position: relative; }
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 1.75rem;
  backdrop-filter: blur(14px);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cert-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-blue);
  box-shadow: var(--glow-blue);
}

.cert-icon-wrap {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: rgba(122, 162, 247, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-blue);
  border: 1px solid rgba(122, 162, 247, 0.25);
  margin-bottom: 1.25rem;
}

.cert-card h3 { font-size: 1.15rem; margin-bottom: 0.4rem; color: var(--text-bright); }
.cert-issuer { font-size: 0.85rem; color: var(--accent-cyan); font-weight: 600; margin-bottom: 0.75rem; }

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  background: rgba(158, 206, 106, 0.1);
  border: 1px solid rgba(158, 206, 106, 0.3);
  border-radius: 50px;
  color: var(--accent-green);
  font-size: 0.75rem;
  font-family: var(--font-code);
}

/* About Me Section */
.about { padding: 90px 0; position: relative; }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: stretch;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
}

.about-nav-tabs {
  display: flex;
  gap: 0.5rem;
  background: var(--bg-input);
  padding: 0.4rem;
  border-radius: 12px;
  margin-bottom: 1.75rem;
  border: 1px solid var(--border-glass);
}

.tab-btn {
  flex: 1;
  padding: 0.6rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.tab-btn.active, .tab-btn:hover {
  background: var(--bg-card-solid);
  color: var(--accent-blue);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.tab-content { display: none; animation: fadeIn 0.4s ease; }
.tab-content.active { display: block; }

.about-text p { color: var(--text-muted); margin-bottom: 1.25rem; font-size: 1rem; line-height: 1.7; }
.about-bullets { list-style: none; margin-top: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }
.about-bullets li { display: flex; align-items: flex-start; gap: 0.8rem; color: var(--text-main); font-size: 0.95rem; }
.about-bullets li i { color: var(--accent-cyan); font-size: 1.1rem; margin-top: 0.2rem; }

.chart-box {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.chart-title h3 { font-size: 1.3rem; margin-bottom: 0.3rem; }
.chart-title p { font-size: 0.85rem; color: var(--text-muted); }
.donut-canvas-container { width: 260px; height: 260px; position: relative; margin: 1.25rem auto; }
.donut-legend { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.legend-item { display: flex; align-items: center; gap: 0.4rem; font-size: 0.8rem; color: var(--text-muted); }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; }

/* Experience & Education Section */
.timeline-section { padding: 90px 0; }
.timeline-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.timeline-column h3 {
  font-size: 1.5rem;
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-bright);
}

.timeline { position: relative; }
.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 18px;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
}

.timeline-item { position: relative; padding-left: 50px; margin-bottom: 2rem; }
.timeline-dot {
  position: absolute;
  left: 9px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-dark);
  border: 3px solid var(--accent-blue);
  box-shadow: var(--glow-blue);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  padding: 1.75rem;
  backdrop-filter: blur(14px);
  transition: var(--transition-fast);
}

.timeline-card:hover { border-color: var(--accent-purple); transform: translateX(5px); }

.timeline-role { font-size: 1.15rem; color: var(--text-bright); }
.timeline-company { color: var(--accent-blue); font-weight: 600; font-size: 0.95rem; margin-bottom: 0.5rem; }
.timeline-date {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--accent-purple);
  display: inline-block;
  padding: 0.2rem 0.65rem;
  background: rgba(187, 154, 247, 0.1);
  border-radius: 50px;
  border: 1px solid rgba(187, 154, 247, 0.2);
  margin-bottom: 0.85rem;
}

.timeline-list { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.timeline-list li { position: relative; padding-left: 1.25rem; color: var(--text-muted); font-size: 0.9rem; }
.timeline-list li::before { content: '▹'; position: absolute; left: 0; color: var(--accent-cyan); }

/* Real-Time Project Search Bar & Filters */
.projects-section { padding: 90px 0; position: relative; }

.search-filter-wrapper {
  max-width: 600px;
  margin: 0 auto 2rem auto;
  position: relative;
}

.search-input-box {
  width: 100%;
  padding: 0.85rem 1.25rem 0.85rem 3rem;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-glass-hover);
  border-radius: 50px;
  color: var(--text-bright);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.search-input-box:focus {
  border-color: var(--accent-blue);
  box-shadow: var(--glow-blue);
}

.search-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 1.1rem;
}

.skill-filters {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.6rem 1.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, rgba(122, 162, 247, 0.2) 0%, rgba(187, 154, 247, 0.2) 100%);
  border-color: var(--accent-blue);
  color: var(--text-bright);
  box-shadow: 0 4px 15px rgba(122, 162, 247, 0.2);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 22px;
  overflow: hidden;
  backdrop-filter: blur(16px);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-cyan);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4), var(--glow-cyan);
}

.project-img-wrapper {
  width: 100%;
  height: 210px;
  position: relative;
  overflow: hidden;
  background: #090d16;
}

.project-img-wrapper img.project-static-img,
.project-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-img-wrapper img.project-static-img,
.project-card:hover .project-img-wrapper img {
  transform: scale(1.06);
}

.project-tag-overlay {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-nav);
  backdrop-filter: blur(10px);
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  border: 1px solid var(--border-glass);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  z-index: 4;
}

.project-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-body h3 { font-size: 1.25rem; margin-bottom: 0.4rem; color: var(--text-bright); }
.project-subtitle { font-size: 0.825rem; color: var(--accent-blue); font-weight: 600; margin-bottom: 0.85rem; }
.project-desc { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; margin-bottom: 1.1rem; }

.project-impact-box {
  background: rgba(158, 206, 106, 0.08);
  border: 1px dashed rgba(158, 206, 106, 0.3);
  border-radius: 10px;
  padding: 0.65rem 0.85rem;
  font-size: 0.8rem;
  color: var(--accent-green);
  margin-bottom: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-tech-stack {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
  margin-top: auto;
}

.tech-badge {
  padding: 0.2rem 0.55rem;
  background: rgba(122, 162, 247, 0.1);
  border: 1px solid rgba(122, 162, 247, 0.2);
  border-radius: 6px;
  font-family: var(--font-code);
  font-size: 0.725rem;
  color: var(--text-main);
}

.project-card-actions { display: flex; gap: 0.75rem; }
.project-btn-details {
  flex: 1;
  padding: 0.65rem;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-glass);
  color: var(--text-bright);
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.project-btn-details:hover {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
}

.project-btn-github {
  width: 40px;
  height: 40px;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-glass);
  color: var(--text-bright);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 1rem;
  transition: var(--transition-fast);
}

.project-btn-github:hover {
  background: var(--accent-purple);
  color: #fff;
  border-color: var(--accent-purple);
}

/* Interactive Playground Section */
.playground-section { padding: 90px 0; position: relative; }
.playground-container {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.playground-header {
  background: var(--bg-input);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-glass);
}

.playground-tabs { display: flex; gap: 0.5rem; overflow-x: auto; }
.pg-tab {
  padding: 0.55rem 1.1rem;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  border-radius: 8px;
  font-family: var(--font-code);
  font-size: 0.825rem;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pg-tab.active, .pg-tab:hover {
  background: var(--bg-card);
  color: var(--accent-cyan);
  border-color: var(--border-glass);
}

.playground-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 420px;
}

.editor-pane {
  background: #0b0d14;
  border-right: 1px solid var(--border-glass);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.pane-title-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.code-area {
  font-family: var(--font-code);
  font-size: 0.875rem;
  line-height: 1.6;
  color: #c0caf5;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
  flex-grow: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
}

.editor-actions {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.btn-run {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.25rem;
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-run:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 15px rgba(122, 162, 247, 0.4);
}

.results-pane {
  background: var(--bg-card-solid);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.result-table-container { overflow-x: auto; margin-top: 0.5rem; flex-grow: 1; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-code);
  font-size: 0.825rem;
  text-align: left;
}

.data-table th {
  background: rgba(122, 162, 247, 0.1);
  color: var(--accent-blue);
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border-glass);
}

.data-table td {
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.results-summary-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem;
  background: rgba(158, 206, 106, 0.15);
  color: var(--accent-green);
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: var(--font-code);
}

/* Floating AI Chat Assistant Widget */
.ai-chat-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff;
  border: none;
  box-shadow: 0 10px 30px rgba(122, 162, 247, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 2500;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.ai-chat-btn:hover { transform: scale(1.1); }

.ai-badge-pulse {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 14px;
  height: 14px;
  background: var(--accent-green);
  border: 2px solid var(--bg-dark);
  border-radius: 50%;
}

.ai-chat-drawer {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 380px;
  max-width: calc(100vw - 40px);
  height: 520px;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-glass-hover);
  border-radius: 24px;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.6);
  z-index: 2500;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.ai-chat-drawer.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

.ai-chat-header {
  background: var(--bg-input);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-glass);
}

.ai-chat-header-info { display: flex; align-items: center; gap: 0.75rem; }
.ai-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(122, 162, 247, 0.2);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.ai-chat-header-info h4 { font-size: 0.95rem; color: var(--text-bright); }
.ai-chat-header-info p { font-size: 0.75rem; color: var(--accent-green); }

.ai-chat-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
}

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

.ai-msg {
  max-width: 85%;
  padding: 0.85rem 1.1rem;
  border-radius: 16px;
  font-size: 0.875rem;
  line-height: 1.5;
}

.ai-msg.bot {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.ai-msg.user {
  background: var(--accent-blue);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.ai-quick-pills {
  padding: 0.75rem 1.25rem;
  background: var(--bg-input);
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  border-top: 1px solid var(--border-glass);
}

.ai-pill {
  padding: 0.35rem 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 50px;
  color: var(--text-muted);
  font-size: 0.75rem;
  white-space: nowrap;
  cursor: pointer;
  transition: var(--transition-fast);
}

.ai-pill:hover {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
}

.ai-chat-input-row {
  padding: 0.85rem 1.25rem;
  background: var(--bg-input);
  display: flex;
  gap: 0.5rem;
}

.ai-chat-input-row input {
  flex-grow: 1;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 0.6rem 1rem;
  color: var(--text-bright);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
}

.ai-chat-input-row button {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--accent-blue);
  color: #fff;
  border: none;
  cursor: pointer;
}

/* Contact Section */
.contact-section { padding: 90px 0; text-align: center; }
.contact-box {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card-hover) 100%);
  border: 1px solid var(--border-glass-hover);
  border-radius: 32px;
  padding: 4rem 2rem;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 30px 70px rgba(0,0,0,0.4);
  position: relative;
}

.contact-box h2 { font-size: 2.4rem; margin-bottom: 1rem; }
.contact-box p { color: var(--text-muted); max-width: 550px; margin: 0 auto 2.5rem auto; font-size: 1.05rem; }

.email-copy-bar {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-input);
  padding: 0.6rem 0.6rem 0.6rem 1.5rem;
  border-radius: 50px;
  border: 1px solid var(--border-glass-hover);
  margin-bottom: 2rem;
  max-width: 100%;
}

.email-text { font-family: var(--font-code); color: var(--accent-cyan); font-size: 0.95rem; }
.btn-copy {
  padding: 0.6rem 1.25rem;
  background: var(--accent-blue);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-copy:hover { background: var(--accent-cyan); color: var(--bg-dark); }

/* Modal System */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 12, 19, 0.85);
  backdrop-filter: blur(12px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 1.5rem;
}

.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal-card {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-glass-hover);
  border-radius: 24px;
  max-width: 800px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 30px 80px rgba(0,0,0,0.7);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-card { transform: translateY(0); }
.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--bg-card-solid);
  border: 1px solid var(--accent-green);
  color: var(--accent-green);
  padding: 0.85rem 1.5rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  z-index: 4000;
}

.toast.show { transform: translateY(0); opacity: 1; }

/* Footer */
footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-glass);
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* Responsiveness */
@media (max-width: 992px) {
  .hero-grid, .about-grid, .timeline-grid, .playground-body { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 2.5rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-secondary { justify-content: center; }
  .hero-brand-header { flex-direction: column; text-align: center; justify-content: center; }
  .quantum-hero-title { font-size: 2.5rem; }
}

/* ==========================================================================
   QUANTUM BRANDING & STYLING SYSTEM
   ========================================================================== */

.hero-brand-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.quantum-profile-badge {
  position: relative;
  width: 95px;
  height: 95px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.quantum-orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px dashed var(--accent-cyan);
  pointer-events: none;
}

.quantum-orbit-ring.ring-1 {
  width: 100%;
  height: 100%;
  border-color: rgba(125, 207, 255, 0.6);
  animation: quantum-orbit 12s linear infinite;
  box-shadow: 0 0 15px rgba(125, 207, 255, 0.2);
}

.quantum-orbit-ring.ring-2 {
  width: 116%;
  height: 116%;
  border-color: rgba(187, 154, 247, 0.5);
  animation: quantum-orbit-reverse 18s linear infinite;
  box-shadow: 0 0 20px rgba(187, 154, 247, 0.2);
}

.quantum-particle-node {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
}

.quantum-particle-node.p1 { top: -2px; left: 50%; animation: quantum-pulse 2s infinite ease-in-out; }
.quantum-particle-node.p2 { bottom: 10px; right: -4px; background: var(--accent-purple); box-shadow: 0 0 8px var(--accent-purple); }
.quantum-particle-node.p3 { bottom: 10px; left: -4px; background: var(--accent-blue); box-shadow: 0 0 8px var(--accent-blue); }

.quantum-avatar-wrapper {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.2);
  background: radial-gradient(circle at center, #1a1d2e 0%, #090a10 100%);
  box-shadow: inset 0 0 15px rgba(122, 162, 247, 0.4), 0 0 25px rgba(122, 162, 247, 0.3);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.quantum-profile-badge:hover .quantum-avatar-wrapper {
  transform: scale(1.06) rotate(3deg);
  border-color: var(--accent-cyan);
  box-shadow: inset 0 0 20px rgba(125, 207, 255, 0.6), 0 0 35px rgba(125, 207, 255, 0.5);
}

.quantum-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.quantum-monogram-overlay {
  position: absolute;
  bottom: 2px;
  right: 2px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff;
  font-family: var(--font-code);
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.6);
  letter-spacing: 0.5px;
}

.hero-title-wrapper {
  display: flex;
  flex-direction: column;
}

.quantum-hero-title {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  position: relative;
  margin: 0;
}

.quantum-first-name {
  color: var(--text-bright);
  position: relative;
}

.quantum-last-name {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 40%, var(--accent-purple) 80%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: quantum-gradient-flow 4s ease infinite;
  display: inline-block;
  padding-right: 4px;
  filter: drop-shadow(0 0 20px rgba(125, 207, 255, 0.35));
}

.quantum-sub-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-code);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-top: 0.4rem;
}

/* Nav Brand Quantum Style */
.quantum-brand-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.quantum-logo-icon {
  position: relative;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.quantum-orbit-small {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 1.5px dashed var(--accent-cyan);
  border-radius: 50%;
  animation: quantum-orbit 8s linear infinite;
}

.quantum-core-small {
  font-size: 0.9rem;
  color: var(--accent-purple);
  filter: drop-shadow(0 0 6px var(--accent-cyan));
}

.quantum-brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-bright);
}

.quantum-gradient-text {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Keyframes */
@keyframes quantum-orbit {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

@keyframes quantum-pulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.4); opacity: 1; }
}

@keyframes quantum-gradient-flow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ==========================================================================
   PDF RESUME EXPORT STYLING (For html2pdf.js generation)
   ========================================================================== */
.pdf-container-hidden {
  position: absolute;
  left: -9999px;
  top: 0;
  width: 794px; /* A4 width at 96 DPI */
  background: #ffffff;
  color: #1e293b;
  font-family: 'Plus Jakarta Sans', sans-serif;
  padding: 35px 40px;
  box-sizing: border-box;
}

.pdf-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2.5px solid #2563eb;
  padding-bottom: 18px;
  margin-bottom: 18px;
}

.pdf-header-left {
  display: flex;
  align-items: center;
  gap: 18px;
}

.pdf-avatar {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #2563eb;
}

.pdf-name {
  font-size: 24px;
  font-weight: 800;
  color: #0f172a;
  margin: 0 0 3px 0;
  line-height: 1.1;
}

.pdf-title {
  font-size: 12px;
  font-weight: 700;
  color: #2563eb;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pdf-contact-grid {
  font-size: 10.5px;
  color: #475569;
  text-align: right;
  line-height: 1.6;
}

.pdf-section-title {
  font-size: 13px;
  font-weight: 800;
  color: #0f172a;
  border-bottom: 1.5px solid #cbd5e1;
  padding-bottom: 3px;
  margin: 16px 0 8px 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pdf-summary {
  font-size: 10.5px;
  line-height: 1.55;
  color: #334155;
  margin-bottom: 10px;
}

.pdf-award-box {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-left: 4px solid #0284c7;
  padding: 7px 12px;
  border-radius: 5px;
  font-size: 10.5px;
  font-weight: 600;
  color: #0369a1;
  margin-bottom: 12px;
}

.pdf-experience-item {
  margin-bottom: 12px;
}

.pdf-role-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 11.5px;
  font-weight: 700;
  color: #0f172a;
}

.pdf-company {
  color: #2563eb;
  font-weight: 600;
}

.pdf-dates {
  font-size: 10px;
  color: #64748b;
  font-weight: 500;
}

.pdf-bullets {
  margin: 5px 0 0 16px;
  padding: 0;
  font-size: 10px;
  color: #334155;
  line-height: 1.45;
}

.pdf-bullets li {
  margin-bottom: 3px;
}

.pdf-skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 16px;
  font-size: 10.5px;
}

.pdf-skill-category {
  font-weight: 700;
  color: #0f172a;
}

.pdf-skill-list {
  color: #475569;
  font-weight: 400;
}

.pdf-projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 8px;
}

.pdf-project-card {
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 8px;
  background: #f8fafc;
}

.pdf-project-img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  border-radius: 5px;
  margin-bottom: 6px;
}

.pdf-project-title {
  font-size: 10.5px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 2px;
}

.pdf-project-desc {
  font-size: 9px;
  color: #475569;
  line-height: 1.35;
}

/* ==========================================================================
   BRAND MONOGRAM & REDESIGNED TELEMETRY CARD
   ========================================================================== */
.brand-monogram-emblem {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(124, 58, 237, 0.2));
  border: 1px solid var(--border-glass-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(122, 162, 247, 0.25);
  transition: var(--transition-normal);
  flex-shrink: 0;
}

.brand-monogram-emblem:hover {
  transform: scale(1.08) rotate(4deg);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(125, 207, 255, 0.45);
}

.monogram-text {
  font-family: var(--font-code);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--text-bright);
  letter-spacing: 0.5px;
}

.monogram-ring {
  position: absolute;
  inset: -3px;
  border-radius: 12px;
  border: 1px dashed var(--accent-cyan);
  opacity: 0.5;
  animation: quantum-orbit 10s linear infinite;
}

.brand-name-group {
  display: flex;
  flex-direction: column;
}

.brand-tag-sub {
  font-size: 0.65rem;
  font-family: var(--font-code);
  color: var(--accent-cyan);
  letter-spacing: 1px;
  font-weight: 600;
}

/* Redesigned Hero Glass Card & Telemetry Container */
.hero-glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass-hover);
  border-radius: 20px;
  padding: 1.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), inset 0 0 30px rgba(122, 162, 247, 0.05);
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.glass-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 0.85rem;
  margin-bottom: 1.25rem;
}

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

.terminal-badge {
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.04);
  padding: 2px 8px;
  border-radius: 6px;
  border: 1px solid var(--border-glass);
}

.live-status-pill {
  font-family: var(--font-code);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-green);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(158, 206, 106, 0.1);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid rgba(158, 206, 106, 0.25);
}

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

.telemetry-card-profile {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-glass);
  padding: 0.75rem 1rem;
  border-radius: 14px;
  margin-bottom: 1.25rem;
}

.telemetry-avatar-ring {
  position: relative;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--accent-cyan);
  box-shadow: 0 0 12px rgba(125, 207, 255, 0.3);
  flex-shrink: 0;
}

.telemetry-avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.telemetry-online-badge {
  position: absolute;
  bottom: -2px;
  right: -2px;
  background: var(--accent-green);
  color: #000;
  font-size: 0.5rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--bg-dark);
}

.telemetry-profile-info h3 {
  font-size: 1.05rem;
  color: var(--text-bright);
  font-weight: 700;
  margin-bottom: 2px;
}

.telemetry-profile-info p {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.2rem;
}

.metric-header i {
  font-size: 0.9rem;
  opacity: 0.8;
}

.metric-bar-bg {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  margin-top: 0.4rem;
  overflow: hidden;
}

.metric-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
  border-radius: 4px;
}

.code-preview-snippet {
  background: rgba(9, 10, 16, 0.85);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  font-family: var(--font-code);
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--text-main);
  margin-top: 1rem;
}

.code-keyword { color: var(--accent-coral); font-weight: 700; }
.code-func { color: var(--accent-blue); }
.code-line.indent { padding-left: 1rem; }
.cursor-blink {
  color: var(--accent-cyan);
  animation: quantum-pulse 1s infinite steps(1);
}

/* ==========================================================================
   DYNAMIC CERTIFICATES & PDF MANAGEMENT SYSTEM
   ========================================================================== */
.cert-management-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.cert-search {
  flex: 1;
  min-width: 280px;
}

.btn-add-cert {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.4rem;
  border-radius: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.cert-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glass-hover);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), var(--glow-blue);
}

.cert-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.cert-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.cert-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.3;
  margin-bottom: 4px;
}

.cert-issuer {
  font-size: 0.8rem;
  font-family: var(--font-code);
  color: var(--accent-cyan);
  font-weight: 600;
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-family: var(--font-code);
  color: var(--accent-green);
  background: rgba(158, 206, 106, 0.1);
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid rgba(158, 206, 106, 0.2);
  margin-bottom: 0.5rem;
}

.cert-actions-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-glass);
  flex-wrap: wrap;
}

.btn-cert-act {
  flex: 1;
  padding: 0.45rem 0.75rem;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--border-glass);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: var(--transition-fast);
}

.btn-cert-act.view:hover { background: var(--accent-blue); color: #fff; border-color: var(--accent-blue); }
.btn-cert-act.download:hover { background: var(--accent-cyan); color: var(--bg-dark); border-color: var(--accent-cyan); }
.btn-cert-act.edit:hover { background: var(--accent-gold); color: #000; border-color: var(--accent-gold); }
.btn-cert-act.delete:hover { background: var(--accent-coral); color: #fff; border-color: var(--accent-coral); }

/* Certificate Upload & Viewer Modals */
.cert-modal-card {
  max-width: 580px;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: var(--text-bright);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(125, 207, 255, 0.2);
}

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

.file-dropzone {
  border: 2px dashed var(--border-glass-hover);
  border-radius: 14px;
  padding: 1.75rem 1rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: var(--transition-fast);
}

.file-dropzone:hover {
  border-color: var(--accent-cyan);
  background: rgba(125, 207, 255, 0.05);
}

.dropzone-icon {
  font-size: 2.2rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.file-name-tag {
  display: inline-block;
  margin-top: 0.5rem;
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--accent-purple);
  background: rgba(187, 154, 247, 0.1);
  padding: 3px 10px;
  border-radius: 6px;
}

.progress-bar-wrapper {
  margin: 1.25rem 0;
}

.progress-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.progress-track {
  width: 100%;
  height: 6px;
  background: var(--bg-input);
  border-radius: 6px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  transition: width 0.3s ease;
}

.modal-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* PDF Viewer Modal */
.cert-viewer-card {
  max-width: 900px;
  height: 85vh;
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
}

.viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-glass);
  margin-bottom: 1rem;
}

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

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
  border-radius: 8px;
}

.viewer-body {
  flex: 1;
  background: #0f172a;
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.viewer-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Navbar Brand Image Logo */
.brand-logo-img {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  object-fit: cover;
  display: block;
}

/* Project Card Management Action Buttons */
.project-card-mgmt-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-glass);
}

/* Enhanced "Let's Build" Contact Container */
.quantum-contact-box {
  max-width: 980px;
  margin: 0 auto;
  padding: 5rem 4rem;
  border-radius: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass-hover);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55), inset 0 0 40px rgba(125, 207, 255, 0.04);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  text-align: center;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
}

.quantum-contact-box:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.65), 0 0 35px rgba(125, 207, 255, 0.2);
}

.contact-glow-backdrop {
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(125, 207, 255, 0.12) 0%, rgba(187, 154, 247, 0) 70%);
  pointer-events: none;
  border-radius: 50%;
}

.quantum-contact-title {
  font-size: 2.7rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.2rem;
  background: linear-gradient(135deg, var(--text-bright) 0%, var(--accent-cyan) 50%, var(--accent-purple) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: quantum-gradient-flow 5s ease infinite;
}

.contact-lead-text {
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem auto;
  line-height: 1.7;
}

.quantum-email-bar {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass-hover);
  border-radius: 16px;
  margin-bottom: 2.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transition: var(--transition-normal);
}

.quantum-email-bar:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 12px 35px rgba(125, 207, 255, 0.2);
  transform: translateY(-2px);
}

.email-icon-pulse {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(187, 154, 247, 0.12);
  color: var(--accent-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.contact-social-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.contact-pill {
  padding: 0.85rem 1.6rem;
  border-radius: 14px;
  font-size: 0.92rem;
  font-weight: 600;
  transition: var(--transition-normal);
}

.contact-pill:hover {
  transform: translateY(-4px) scale(1.03);
}

/* Brand Logo Edit Overlay */
.brand-monogram-emblem {
  position: relative;
  cursor: pointer;
}

.avatar-edit-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.75);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 0.85rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(2px);
  z-index: 5;
}

.brand-monogram-emblem:hover .avatar-edit-overlay {
  opacity: 1;
}

/* Public Visitor vs. Admin Access Mode Control */
body:not(.admin-mode-active) .admin-only-control {
  display: none !important;
}

body.admin-mode-active .admin-only-control {
  display: inline-flex !important;
}

div.avatar-edit-overlay.admin-only-control {
  display: flex !important;
}

body:not(.admin-mode-active) div.avatar-edit-overlay.admin-only-control {
  display: none !important;
}

.admin-lock-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  transition: var(--transition-normal);
}

.admin-lock-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

body.admin-mode-active .admin-lock-btn {
  background: rgba(158, 206, 106, 0.15);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.admin-badge {
  background: rgba(158, 206, 106, 0.15);
  border: 1px solid var(--accent-green);
  color: var(--accent-green);
}

@media (max-width: 768px) {
  .quantum-contact-box {
    padding: 2.5rem 1.5rem;
  }
  .quantum-contact-title {
    font-size: 2rem;
  }
}