/* =========================================================
   RAJAAS TAHIR — Cloud Architect Portfolio Theme
   ========================================================= */

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0d1424;
  --bg-card: #111827;
  --bg-card-hover: #162032;
  --accent-azure: #0078D4;
  --accent-azure-light: #2196F3;
  --accent-gold: #F59E0B;
  --accent-teal: #00B4D8;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --border: rgba(0, 120, 212, 0.2);
  --border-hover: rgba(0, 120, 212, 0.6);
  --glow: rgba(0, 120, 212, 0.15);
  --glow-strong: rgba(0, 120, 212, 0.35);
  --gradient-hero: linear-gradient(135deg, #0a0e1a 0%, #0d1a2e 50%, #0a0e1a 100%);
  --gradient-accent: linear-gradient(135deg, #0078D4, #00B4D8);
  --gradient-gold: linear-gradient(135deg, #F59E0B, #FBBF24);
  --font-heading: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', monospace;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-azure); border-radius: 3px; }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

a { color: var(--accent-azure); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-teal); }

/* ── Utility ── */
.gradient-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gold-text {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-azure);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--accent-azure);
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
}
.section-sub {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
section {
  padding: 100px 0;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--glow-strong);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--glow-strong);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--accent-azure);
  border: 1.5px solid var(--accent-azure);
}
.btn-outline:hover {
  background: var(--glow);
  transform: translateY(-2px);
  color: var(--accent-azure-light);
}
.btn-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

/* ── Card ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 40px var(--glow);
}

/* ── Tag / Badge ── */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--accent-azure);
  background: var(--glow);
}
.tag-gold {
  color: var(--accent-gold);
  border-color: rgba(245,158,11,0.3);
  background: rgba(245,158,11,0.08);
}
.tag-teal {
  color: var(--accent-teal);
  border-color: rgba(0,180,216,0.3);
  background: rgba(0,180,216,0.08);
}

/* ── NAV ── */
nav.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}
nav.site-nav.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary) !important;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo .dot {
  width: 8px;
  height: 8px;
  background: var(--accent-azure);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-azure); }
  50% { opacity: 0.8; box-shadow: 0 0 0 6px transparent; }
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-azure);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary);
}
.nav-links a:hover::after, .nav-links a.active::after {
  transform: scaleX(1);
}
.nav-cta {
  padding: 8px 20px;
  background: var(--glow);
  border: 1.5px solid var(--accent-azure);
  border-radius: 8px;
  color: var(--accent-azure) !important;
  font-weight: 600;
  font-size: 0.85rem;
}
.nav-cta:hover {
  background: var(--glow-strong) !important;
  color: var(--accent-azure-light) !important;
}
.nav-cta::after { display: none !important; }

/* hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 0;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 0;
}
/* Animated grid lines */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,120,212,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,120,212,0.07) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
}
/* Glowing orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float-orb 8s ease-in-out infinite;
  z-index: 0;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,120,212,0.15) 0%, transparent 70%);
  top: -100px; right: -200px;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,180,216,0.1) 0%, transparent 70%);
  bottom: -50px; left: -100px;
  animation-delay: -4s;
}
@keyframes float-orb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -20px) scale(1.05); }
  66% { transform: translate(-10px, 20px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 120px 0 80px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--glow);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--accent-azure);
  font-weight: 600;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease both;
}
.hero-badge .live-dot {
  width: 6px; height: 6px;
  background: #22C55E;
  border-radius: 50%;
  animation: pulse-dot 1.5s infinite;
}
.hero-title {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease 0.1s both;
}
.hero-title .name-line {
  display: block;
  color: var(--text-primary);
}
.hero-title .role-line {
  display: block;
}
.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 36px;
  animation: fadeInUp 0.6s ease 0.2s both;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
  animation: fadeInUp 0.6s ease 0.3s both;
}
.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.4s both;
}
.hero-stat {
  display: flex;
  flex-direction: column;
}
.hero-stat .number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}
.hero-stat .number span {
  font-size: 1.2rem;
  color: var(--accent-azure);
}
.hero-stat .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}
/* Terminal widget */
.hero-terminal {
  background: rgba(13,20,36,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(10px);
  animation: fadeInRight 0.8s ease 0.3s both;
  max-width: 480px;
  width: 100%;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}
.terminal-dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal-dot.red { background: #FF5F56; }
.terminal-dot.yellow { background: #FFBD2E; }
.terminal-dot.green { background: #27C93F; }
.terminal-title {
  margin-left: auto;
  margin-right: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.9;
}
.terminal-line { display: flex; gap: 8px; flex-wrap: wrap; min-width: 0; }
.terminal-prompt { color: var(--accent-azure); flex-shrink: 0; }
.terminal-cmd { color: var(--text-primary); word-break: break-word; overflow-wrap: anywhere; min-width: 0; }
.terminal-output { color: var(--accent-gold); padding-left: 16px; word-break: break-word; overflow-wrap: anywhere; min-width: 0; }
.terminal-output.green { color: #22C55E; }
.terminal-output.teal { color: var(--accent-teal); }
.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 1.2em;
  background: var(--accent-azure);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* 2-col hero layout */
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-terminal { max-width: 100%; }
}

/* ── ABOUT ── */
#about {
  background: var(--bg-secondary);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: center;
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
}
.about-photo-wrap {
  position: relative;
}
.about-photo {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border);
  display: block;
  filter: grayscale(10%);
  transition: var(--transition);
}
.about-photo:hover { filter: grayscale(0%); }
.about-photo-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  backdrop-filter: blur(10px);
}
.about-photo-badge .icon {
  font-size: 1.5rem;
}
.about-photo-badge strong {
  display: block;
  font-size: 1.1rem;
  color: var(--accent-azure);
}
.about-photo-badge small {
  color: var(--text-muted);
  font-size: 0.75rem;
}
.about-skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 32px;
}
.about-skill-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.about-skill-item:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}
.about-skill-item .skill-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* ── EXPERIENCE ── */
#experience {
  background: var(--bg-primary);
}
.timeline {
  position: relative;
  padding-left: 32px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-azure), var(--accent-teal), transparent);
}
.timeline-item {
  position: relative;
  margin-bottom: 48px;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -40px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-azure);
  border: 2px solid var(--bg-primary);
  box-shadow: 0 0 0 4px var(--glow);
}
.timeline-date {
  font-size: 0.8rem;
  color: var(--accent-azure);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}
.timeline-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.timeline-company {
  color: var(--accent-gold);
  font-weight: 600;
  margin-bottom: 12px;
  font-size: 0.95rem;
}
.timeline-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 16px;
  word-break: break-word;
  overflow-wrap: break-word;
}
.timeline-highlights {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.timeline-highlight {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--text-secondary);
  font-size: 0.88rem;
}
.timeline-highlight::before {
  content: '▸';
  color: var(--accent-azure);
  flex-shrink: 0;
  margin-top: 2px;
}
.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

/* ── Experience responsive ── */
@media (max-width: 768px) {
  .timeline {
    padding-left: 24px;
  }
  .timeline-dot {
    left: -32px;
    width: 14px;
    height: 14px;
  }
  .timeline-title {
    font-size: 1.1rem;
  }
  .timeline-company {
    font-size: 0.88rem;
  }
  .timeline-desc {
    font-size: 0.88rem;
  }
  .timeline-highlight {
    font-size: 0.83rem;
    word-break: break-word;
    overflow-wrap: break-word;
  }
  .tag {
    font-size: 0.75rem;
  }
}
@media (max-width: 480px) {
  .timeline {
    padding-left: 20px;
  }
  .timeline-dot {
    left: -28px;
    width: 12px;
    height: 12px;
  }
  .timeline-item {
    margin-bottom: 40px;
  }
  .timeline-title {
    font-size: 1rem;
  }
  .timeline-highlight {
    font-size: 0.8rem;
  }
  .hero-terminal {
    font-size: 0.75rem;
  }
  .terminal-body {
    padding: 14px;
    font-size: 0.75rem;
  }
}

/* ── LABS / BLOG ── */
#labs {
  background: var(--bg-secondary);
}
.labs-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.lab-tab {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  background: transparent;
}
.lab-tab.active, .lab-tab:hover {
  background: var(--glow);
  border-color: var(--accent-azure);
  color: var(--accent-azure);
}
.labs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.lab-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.lab-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 40px var(--glow);
}
.lab-card-thumb {
  height: 200px;
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}
.lab-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.lab-card:hover .lab-card-thumb img {
  transform: scale(1.05);
}
.lab-card-type {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.lab-type-blog { background: rgba(0,120,212,0.8); color: #fff; }
.lab-type-lab { background: rgba(245,158,11,0.8); color: #000; }
.lab-type-video { background: rgba(239,68,68,0.8); color: #fff; }
.lab-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.lab-card-category {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-azure);
  font-weight: 700;
  margin-bottom: 10px;
}
.lab-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 10px;
}
.lab-card-excerpt {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.65;
  flex: 1;
  margin-bottom: 20px;
}
.lab-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.lab-card-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.lab-card-links {
  display: flex;
  gap: 8px;
}
.lab-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: var(--transition);
  text-decoration: none;
}
.lab-link:hover {
  border-color: var(--accent-azure);
  color: var(--accent-azure);
  background: var(--glow);
}
.lab-link.yt:hover {
  border-color: #FF0000;
  color: #FF0000;
  background: rgba(255,0,0,0.08);
}
.lab-link.gh:hover {
  border-color: #94A3B8;
  color: var(--text-primary);
}

/* ── PROJECTS ── */
#projects {
  background: var(--bg-primary);
}
.projects-filter {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn.active, .filter-btn:hover {
  background: var(--glow);
  border-color: var(--accent-azure);
  color: var(--accent-azure);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.project-card:hover::before { transform: scaleX(1); }
.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 40px var(--glow);
}
.project-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}
.project-category {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-gold);
  font-weight: 700;
  margin-bottom: 10px;
}
.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.project-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.65;
  margin-bottom: 20px;
}
.project-impact {
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.82rem;
  color: #22C55E;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.project-impact::before { content: '↑'; font-weight: 700; }
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ── CERTIFICATIONS ── */
#certifications {
  background: var(--bg-secondary);
}
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.cert-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.3), 0 0 20px var(--glow);
  background: var(--bg-card-hover);
}
.cert-card img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 12px;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}
.cert-card h4 {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 600;
  line-height: 1.4;
}
.certs-credly {
  text-align: center;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* ── CONTACT ── */
#contact {
  background: var(--bg-primary);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-info-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.contact-info-item:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}
.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--glow);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-info-text strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 4px;
}
.contact-info-text span, .contact-info-text a {
  font-size: 0.95rem;
  color: var(--text-primary);
}
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-heading);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent-azure);
  box-shadow: 0 0 0 3px var(--glow);
}
.form-group textarea { resize: vertical; min-height: 140px; }
.form-success {
  display: none;
  padding: 16px;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: 8px;
  color: #22C55E;
  margin-top: 16px;
  font-size: 0.9rem;
  align-items: center;
  gap: 8px;
}

/* ── FOOTER ── */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-top: 12px;
  max-width: 300px;
}
.footer-heading {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--accent-azure); }
.footer-social {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.social-link {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary) !important;
  font-size: 0.9rem;
  transition: var(--transition);
  text-decoration: none;
}
.social-link:hover {
  border-color: var(--border-hover);
  background: var(--glow);
  color: var(--accent-azure) !important;
  transform: translateY(-2px);
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ── Animations ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── Stats bar ── */
.stats-bar {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}
.stats-bar-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 768px) {
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
}
.stat-item {
  text-align: center;
  padding: 16px;
}
.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  display: block;
}
.stat-number span { color: var(--accent-azure); }
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 6px;
  display: block;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  section { padding: 72px 0; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(10,14,26,0.97);
    backdrop-filter: blur(20px);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    gap: 24px;
    z-index: 999;
  }
  .nav-hamburger { display: flex; }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .labs-grid { grid-template-columns: 1fr; }
  .about-photo-badge { display: none; }
}