/* ===== ROOT VARIABLES ===== */
:root {
  --bg-primary: #faf9f7;
  --bg-secondary: #f2f0ec;
  --bg-card: #ffffff;
  --bg-card-hover: #fdfcfb;
  --bg-dark: #111111;
  --accent-primary: #e8402a;
  --accent-secondary: #c73320;
  --accent-light: rgba(232, 64, 42, 0.08);
  --accent-light-strong: rgba(232, 64, 42, 0.15);
  --text-primary: #111111;
  --text-secondary: #555555;
  --text-muted: #999999;
  --text-on-accent: #ffffff;
  --border-subtle: #e5e3de;
  --border-glow: rgba(232, 64, 42, 0.25);
  --gradient-primary: linear-gradient(135deg, #e8402a 0%, #c73320 100%);
  --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-accent: 0 4px 20px rgba(232, 64, 42, 0.25);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --font-main: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--accent-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-secondary); }
ul { list-style: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent-primary); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-secondary); }

/* ===== SELECTION ===== */
::selection { background: rgba(232, 64, 42, 0.15); color: var(--text-primary); }

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

/* ===== UTILITY ===== */
.mt-4 { margin-top: 1.5rem; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(250, 249, 247, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-primary);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.75); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 100px;
  transition: var(--transition);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-main);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(232, 64, 42, 0.38);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--text-primary);
}

.btn-outline:hover {
  background: var(--text-primary);
  color: var(--bg-primary);
  transform: translateY(-2px);
}

.btn-full { width: 100%; justify-content: center; }

/* ===== SECTIONS ===== */
.section { padding: 100px 0; position: relative; }

.section-header { text-align: center; margin-bottom: 60px; }

.section-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-primary);
  background: var(--accent-light);
  border: 1px solid var(--border-glow);
  padding: 4px 14px;
  border-radius: 100px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.section-subtitle {
  margin-top: 12px;
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-primary);
}

/* Subtle dot-grid background pattern */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, #d0cec9 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.5;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(232,64,42,0.08) 0%, transparent 70%);
  pointer-events: none;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.25;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 860px;
  padding: 0 24px;
  padding-top: 72px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: var(--accent-light);
  border: 1px solid var(--border-glow);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: fadeInDown 0.6s ease both;
}

.badge-dot {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
  animation: fadeInUp 0.7s ease 0.1s both;
}

.hero-greeting {
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  color: var(--text-secondary);
  font-weight: 400;
}

.hero-name {
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.04em;
  line-height: 1;
}

.hero-role {
  font-size: clamp(1rem, 3vw, 1.4rem);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-weight: 400;
  min-height: 2em;
}

.typed-text { color: var(--accent-primary); font-weight: 600; }

.cursor {
  color: var(--accent-primary);
  animation: blink 1s step-end infinite;
}

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

.hero-desc {
  font-size: clamp(0.95rem, 2vw, 1.08rem);
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.8;
  animation: fadeInUp 0.7s ease 0.2s both;
}

.hero-desc strong { color: var(--accent-primary); font-weight: 700; }

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
  animation: fadeInUp 0.7s ease 0.3s both;
}

.hero-socials {
  display: flex;
  gap: 10px;
  justify-content: center;
  animation: fadeInUp 0.7s ease 0.4s both;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1.5px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.social-link:hover {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-indicator {
  width: 28px;
  height: 46px;
  border: 2px solid var(--border-subtle);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  animation: fadeIn 1s ease 1s both;
}

.scroll-dot {
  width: 4px;
  height: 8px;
  background: var(--accent-primary);
  border-radius: 2px;
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(12px); opacity: 0.3; }
}

/* ===== STATS STRIP ===== */
.stats-strip {
  padding: 48px 0;
  background: var(--bg-dark);
  border-top: none;
  border-bottom: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0; top: 15%; height: 70%;
  width: 1px;
  background: rgba(255,255,255,0.08);
}

.stat-number {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--accent-primary);
  line-height: 1;
}

.stat-suffix {
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 700;
  color: var(--accent-primary);
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.45);
  font-weight: 500;
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ===== ABOUT ===== */
.about-section { background: var(--bg-primary); }

.about-grid {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 72px;
  align-items: center;
}

.about-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.about-card-3d {
  position: relative;
  width: 320px;
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-ring {
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: var(--gradient-primary);
  padding: 4px;
  position: relative;
  z-index: 2;
  animation: rotate-ring 6s ease-in-out infinite;
}

@keyframes rotate-ring {
  0%   { box-shadow: 0 0 30px rgba(232,64,42,0.25), 0 0 60px rgba(232,64,42,0.08); }
  50%  { box-shadow: 0 0 60px rgba(232,64,42,0.45), 0 0 100px rgba(232,64,42,0.15); }
  100% { box-shadow: 0 0 30px rgba(232,64,42,0.25), 0 0 60px rgba(232,64,42,0.08); }
}

.profile-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--accent-primary);
}

.floating-badge {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: 6px;
}

.floating-badge i { color: var(--accent-primary); }

.badge-1 { top: 10%;  right: -10px; animation: float1 4s ease-in-out infinite; }
.badge-2 { bottom: 25%; right: -20px; animation: float1 4s ease-in-out 1s infinite; }
.badge-3 { top: 20%;  left: -20px;  animation: float1 4s ease-in-out 0.5s infinite; }
.badge-4 { bottom: 10%; left: -10px; animation: float1 4s ease-in-out 1.5s infinite; }

@keyframes float1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.about-text {
  color: var(--text-secondary);
  font-size: 0.97rem;
  margin-bottom: 16px;
  line-height: 1.85;
}

.about-text strong { color: var(--text-primary); font-weight: 700; }

.about-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
  margin-bottom: 8px;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.info-item i { color: var(--accent-primary); width: 16px; flex-shrink: 0; }

/* ===== SKILLS ===== */
.skills-section { background: var(--bg-secondary); }

.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.skill-category:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.skill-cat-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-cat-title i { color: var(--accent-primary); }

.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.skill-tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 100px;
  font-family: var(--font-mono);
  transition: var(--transition);
  cursor: default;
}

.skill-tag:hover { transform: translateY(-1px); }

.level-expert {
  background: rgba(232, 64, 42, 0.08);
  color: var(--accent-primary);
  border: 1px solid rgba(232, 64, 42, 0.22);
}

.level-advanced {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.level-intermediate {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

.skill-legend {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ===== EXPERIENCE / TIMELINE ===== */
.experience-section { background: var(--bg-primary); }

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-primary), transparent);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 36px;
}

.timeline-dot {
  position: absolute;
  left: 12px; top: 24px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 0 3px rgba(232,64,42,0.15);
  z-index: 1;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.timeline-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card-hover);
  transform: translateX(4px);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  gap: 16px;
  flex-wrap: wrap;
}

.timeline-company { display: flex; align-items: flex-start; gap: 14px; }

.company-icon {
  width: 44px; height: 44px;
  background: var(--accent-light);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  font-size: 1rem;
  flex-shrink: 0;
}

.job-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.company-name {
  font-size: 0.85rem;
  color: var(--accent-primary);
  font-weight: 600;
}

.timeline-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.timeline-period, .timeline-location {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
}

.timeline-points { margin-bottom: 20px; }

.timeline-points li {
  position: relative;
  padding-left: 16px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.65;
}

.timeline-points li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-size: 0.7rem;
  top: 3px;
}

.timeline-points li strong { color: var(--text-primary); }

.timeline-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.timeline-tags span {
  font-size: 0.7rem;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--accent-light);
  color: var(--accent-primary);
  border: 1px solid var(--border-glow);
}

/* ===== PROJECTS ===== */
.projects-section { background: var(--bg-secondary); }

.projects-filter {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1.5px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
  box-shadow: var(--shadow-card);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-accent);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-card);
}

.project-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.project-card.hidden { display: none; }

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-icon {
  width: 48px; height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #fff;
}

.project-badges { display: flex; gap: 6px; flex-wrap: wrap; }

.proj-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
  font-family: var(--font-mono);
}

.badge-govt {
  background: rgba(139, 92, 246, 0.08);
  color: #7c3aed;
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.badge-uae {
  background: var(--accent-light);
  color: var(--accent-primary);
  border: 1px solid var(--border-glow);
}

.badge-telecom {
  background: rgba(16, 185, 129, 0.08);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-pk {
  background: rgba(245, 158, 11, 0.08);
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.project-title { font-size: 1rem; font-weight: 700; color: var(--text-primary); }
.project-org { font-size: 0.82rem; color: var(--accent-primary); font-weight: 600; }

.project-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.project-desc strong { color: var(--text-primary); }

.project-stack { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }

.project-stack span {
  font-size: 0.68rem;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

/* ===== CERTIFICATIONS ===== */
.cert-section { background: var(--bg-primary); }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.cert-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.cert-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.cert-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.cert-azure  { background: rgba(0, 120, 212, 0.08); color: #0078d4; border: 1px solid rgba(0,120,212,0.2); }
.cert-pmp    { background: rgba(124, 58, 237, 0.08); color: #7c3aed; border: 1px solid rgba(124,58,237,0.2); }
.cert-redhat { background: rgba(232, 64, 42, 0.08);  color: var(--accent-primary); border: 1px solid var(--border-glow); }
.cert-informatica { background: rgba(245, 158, 11, 0.08); color: #d97706; border: 1px solid rgba(245,158,11,0.2); }
.cert-cloudera    { background: rgba(16, 185, 129, 0.08);  color: #059669; border: 1px solid rgba(16,185,129,0.2); }

.cert-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
  line-height: 1.4;
}

.cert-issuer { font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 6px; }

.cert-date {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--accent-primary);
  font-weight: 600;
  background: var(--accent-light);
  border: 1px solid var(--border-glow);
  padding: 2px 8px;
  border-radius: 100px;
}

/* ===== BLOG PREVIEW ===== */
.blog-preview-section { background: var(--bg-secondary); }

.blog-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.blog-preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-card);
}

.blog-preview-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.blog-preview-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blog-category {
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-primary);
  background: var(--accent-light);
  border: 1px solid var(--border-glow);
  padding: 3px 10px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.blog-date { font-size: 0.78rem; color: var(--text-muted); font-family: var(--font-mono); }

.blog-preview-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.blog-preview-title a { color: var(--text-primary); }
.blog-preview-title a:hover { color: var(--accent-primary); }

.blog-preview-excerpt {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.blog-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-top: auto;
  transition: var(--transition);
}

.blog-read-more:hover { gap: 10px; color: var(--accent-secondary); }

.blog-cta-wrap { text-align: center; }

/* ===== CONTACT ===== */
.contact-section { background: var(--bg-primary); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

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

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.contact-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card-hover);
}

.contact-card > i {
  width: 40px; height: 40px;
  background: var(--accent-light);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  font-size: 0.9rem;
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-value { font-size: 0.88rem; color: var(--text-primary); font-weight: 500; }
a.contact-value:hover { color: var(--accent-primary); }

/* ===== CONTACT FORM ===== */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: var(--shadow-card);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-group input,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-family: var(--font-main);
  transition: var(--transition);
  outline: none;
  resize: none;
}

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

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light-strong);
  background: var(--bg-card);
}

.form-group input.field-error,
.form-group textarea.field-error {
  border-color: var(--accent-primary) !important;
  box-shadow: 0 0 0 3px rgba(232,64,42,0.15) !important;
}

.captcha-wrap {
  margin-bottom: 8px;
}

.captcha-error {
  font-size: 0.82rem;
  color: var(--accent-primary);
  margin-top: 6px;
}

.captcha-error[hidden] { display: none !important; }

.form-success[hidden] { display: none !important; }
.form-success {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: #059669;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}

.form-error[hidden] { display: none !important; }
.form-error {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--accent-primary);
  background: rgba(232, 64, 42, 0.06);
  border: 1px solid rgba(232, 64, 42, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand { display: flex; flex-direction: column; gap: 16px; }
.footer-logo .logo-text { color: #fff; }

.footer-brand p { font-size: 0.85rem; color: rgba(255,255,255,0.45); line-height: 1.7; }

.footer-socials { display: flex; gap: 10px; }

.footer-socials a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-socials a:hover {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
}

.footer-links h4 {
  font-size: 0.78rem;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-links ul { display: flex; flex-direction: column; gap: 10px; }

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent-primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.3); }

/* ===== BLOG PAGE ===== */
.blog-hero {
  padding: 140px 0 80px;
  background: var(--bg-primary);
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, #d0cec9 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.4;
  pointer-events: none;
}

.blog-section { padding: 80px 0; background: var(--bg-primary); }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
}

.blog-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.blog-card-image {
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.blog-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.blog-card-title { font-size: 1rem; font-weight: 700; color: var(--text-primary); line-height: 1.4; }
.blog-card-title a { color: var(--text-primary); }
.blog-card-title a:hover { color: var(--accent-primary); }
.blog-card-excerpt { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.7; flex: 1; }

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

.blog-author { font-size: 0.78rem; color: var(--text-muted); }

/* ===== BLOG POST ===== */
.post-hero {
  padding: 140px 0 60px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-subtle);
}

.post-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  transition: var(--transition);
}

.post-back:hover { color: var(--accent-primary); gap: 12px; }

.post-meta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }

.post-hero-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.03em;
  max-width: 800px;
  margin-bottom: 20px;
}

.post-hero-excerpt {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 700px;
  line-height: 1.7;
}

.post-content-area { padding: 60px 0 80px; background: var(--bg-primary); }

.post-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  max-width: 1100px;
  margin: 0 auto;
}

.post-body { color: var(--text-secondary); font-size: 1rem; line-height: 1.85; }
.post-body h2 { font-size: 1.5rem; font-weight: 800; color: var(--text-primary); margin: 40px 0 16px; padding-top: 20px; border-top: 1px solid var(--border-subtle); }
.post-body h3 { font-size: 1.15rem; font-weight: 700; color: var(--text-primary); margin: 28px 0 12px; }
.post-body p { margin-bottom: 20px; }
.post-body ul, .post-body ol { padding-left: 24px; margin-bottom: 20px; list-style: disc; }
.post-body ul li, .post-body ol li { margin-bottom: 8px; line-height: 1.7; }
.post-body code { font-family: var(--font-mono); font-size: 0.85em; background: var(--bg-secondary); color: var(--accent-primary); padding: 2px 6px; border-radius: 4px; border: 1px solid var(--border-subtle); }
.post-body pre { background: var(--bg-dark); border-radius: var(--radius-md); padding: 24px; overflow-x: auto; margin-bottom: 24px; border: 1px solid rgba(255,255,255,0.06); }
.post-body pre code { background: none; border: none; padding: 0; font-size: 0.88rem; color: rgba(255,255,255,0.75); }
.post-body blockquote { border-left: 3px solid var(--accent-primary); padding: 12px 24px; background: var(--accent-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 24px 0; font-style: italic; }
.post-body strong { color: var(--text-primary); font-weight: 700; }

.post-sidebar { position: sticky; top: 100px; height: fit-content; display: flex; flex-direction: column; gap: 24px; }

.sidebar-widget { background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-card); }

.sidebar-widget h4 { font-size: 0.78rem; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.1em; padding-bottom: 12px; border-bottom: 1px solid var(--border-subtle); }

.toc-list { display: flex; flex-direction: column; gap: 8px; }
.toc-list a { font-size: 0.82rem; color: var(--text-secondary); transition: var(--transition); display: flex; align-items: center; gap: 6px; }
.toc-list a::before { content: '▸'; font-size: 0.65rem; color: var(--accent-primary); flex-shrink: 0; }
.toc-list a:hover { color: var(--accent-primary); padding-left: 4px; }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-cloud a { font-size: 0.72rem; font-weight: 600; font-family: var(--font-mono); padding: 4px 10px; border-radius: 100px; background: var(--accent-light); color: var(--accent-primary); border: 1px solid var(--border-glow); transition: var(--transition); }
.tag-cloud a:hover { background: var(--accent-primary); color: #fff; }

/* ===== ANIMATIONS ===== */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .about-card-3d { width: 280px; height: 300px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .post-layout { grid-template-columns: 1fr; }
  .post-sidebar { position: static; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    inset: 0;
    top: 72px;
    background: rgba(250, 249, 247, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    transform: translateX(-100%);
    transition: var(--transition);
    z-index: 999;
    border-top: 1px solid var(--border-subtle);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-link { font-size: 1.1rem; padding: 10px 24px; }
  .nav-toggle { display: flex; z-index: 1000; }
  .section { padding: 70px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:last-child { grid-column: 1 / -1; }
  .stat-item::after { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .timeline::before { left: 12px; }
  .timeline-item { padding-left: 40px; }
  .timeline-dot { left: 5px; }
  .timeline-header { flex-direction: column; }
  .timeline-meta { align-items: flex-start; }
}

@media (max-width: 480px) {
  .about-info-grid { grid-template-columns: 1fr; }
  .skills-categories { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .blog-preview-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}