/* =============================================
   PORTFOLIO — style.css
   Author : Bollam Sherlin Varshitha
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  --bg:        #0a0a0f;
  --surface:   #111118;
  --card:      #16161f;
  --border:    rgba(255,255,255,0.07);
  --accent:    #c8f542;       
  --teal:      #42f5c8;    
  --pink:      #f542a4;       
  --text:      #eeeef4;
  --muted:     #8888aa;
  --glow:      rgba(200,245,66,0.15);
  --radius:    12px;
  --transition: 0.3s ease;
  --font-display: 'Playfair Display', serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
strong { color: var(--accent); font-weight: 600; }

/* Noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.35;
}

/* ---------- Utility ---------- */
.bg-dark    { background: var(--bg); }
.bg-surface { background: var(--surface); }
.text-center { text-align: center; }
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 2rem;
}
.section { padding: 6rem 0; }

/* ---------- Icon helpers ---------- */
.icon-sm { width: 16px; height: 16px; stroke-width: 2; }
.icon-md { width: 22px; height: 22px; stroke-width: 2; }
.icon-lg { width: 30px; height: 30px; stroke-width: 1.8; }
.icon-sm.accent { color: var(--accent); }
.icon-md.accent { color: var(--accent); }
.icon-md.teal   { color: var(--teal); }
.icon-md.pink   { color: var(--pink); }

/* ---------- Section labels ---------- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.section-label::before {
  content: '';
  width: 24px; height: 2px;
  background: var(--accent);
  display: inline-block;
}
.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -1px;
  margin-bottom: 3rem;
  line-height: 1.1;
}
.section-title span { color: var(--accent); }
.section-sub {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: -2rem;
  margin-bottom: 3rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #000;
  font-weight: 700;
}
.btn-primary:hover {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 30px var(--glow);
}
.btn-outline {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--teal);
  color: var(--teal);
}
.btn-ghost {
  border-color: transparent;
  color: var(--muted);
  background: rgba(255,255,255,0.04);
}
.btn-ghost:hover {
  color: var(--text);
  background: rgba(255,255,255,0.08);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background: rgba(10,10,15,0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
#navbar.scrolled {
  box-shadow: 0 4px 40px rgba(0,0,0,0.4);
}
.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -0.5px;
}
.nav-logo .dot { color: var(--teal); }
.nav-links {
  display: flex;
  list-style: none;
  gap: 2.2rem;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  list-style: none;
  flex-direction: column;
  padding: 1rem 2rem 1.5rem;
  gap: 1rem;
  border-top: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition);
}
.mobile-menu a:hover { color: var(--accent); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 5rem;
  position: relative;
  overflow: hidden;
  max-width: 1180px;
  margin: 0 auto;
}
.hero-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 55% at 75% 40%, rgba(200,245,66,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 45% at 15% 65%, rgba(66,245,200,0.05) 0%, transparent 60%);
  pointer-events: none;
  z-index: -1;
}
.hero-grid-overlay {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: -1;
}
.hero-content {
  flex: 1;
  max-width: 620px;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.1s ease forwards;
}
.hero-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 1.0;
  letter-spacing: -2px;
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.25s ease forwards;
}
.outline-text {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent);
}
.hero-role {
  font-size: 1.15rem;
  color: var(--teal);
  font-weight: 600;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s ease forwards;
}
.hero-bio {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.55s ease forwards;
}
.hero-cta {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.7s ease forwards;
}
.social-row {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  opacity: 0;
  animation: fadeUp 0.8s 0.85s ease forwards;
}
.social-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  letter-spacing: 0.06em;
  transition: all var(--transition);
}
.social-pill:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--glow);
}

/* Hero photo */
.hero-photo-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
  flex-shrink: 0;
  margin-left: 5rem;
  animation: floatY 6s ease-in-out infinite;
}
.photo-ring {
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0.5;
  animation: spin 12s linear infinite;
}
.ring2 {
  inset: -22px;
  border-color: var(--teal);
  opacity: 0.2;
  animation-duration: 20s;
  animation-direction: reverse;
}
.hero-photo {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: 0 0 60px rgba(200,245,66,0.2), 0 0 120px rgba(200,245,66,0.07);
  position: relative;
  z-index: 1;
}
.photo-fallback {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 3px dashed var(--accent);
  background: var(--card);
  position: relative;
  z-index: 1;
  gap: 0.5rem;
}
.photo-fallback span {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 900;
  color: var(--accent);
  opacity: 0.6;
}
.photo-hint {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.6;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 4rem;
  align-items: start;
}
.about-text p { color: var(--muted); margin-bottom: 1rem; }
.quick-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 2rem;
}
.qi-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.qi-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.qi-item span:last-child { font-size: 0.9rem; font-weight: 500; }
.status-badge {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 12px;
  background: rgba(200,245,66,0.1);
  border: 1px solid rgba(200,245,66,0.3);
  color: var(--accent) !important;
  font-size: 0.75rem !important;
  font-family: var(--font-mono);
}
/* Stat cards */
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
  transition: all var(--transition);
}
.stat-card:hover {
  border-color: rgba(200,245,66,0.35);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.8rem;
}
.skill-group {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color var(--transition);
}
.skill-group:hover { border-color: rgba(200,245,66,0.25); }
.skill-group-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}
.skill-group-header h3 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
}
.skill-bars { display: flex; flex-direction: column; gap: 1rem; }
.skill-bar-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.skill-bar-item span {
  width: 110px;
  font-size: 0.83rem;
  color: var(--muted);
  flex-shrink: 0;
  font-family: var(--font-mono);
}
.bar {
  flex: 1;
  height: 5px;
  background: rgba(255,255,255,0.06);
  border-radius: 10px;
  overflow: hidden;
}
.fill {
  height: 100%;
  width: var(--pct);
  background: var(--accent);
  border-radius: 10px;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.fill.teal { background: var(--teal); }
.fill.pink { background: var(--pink); }
.fill.animated { transform: scaleX(1); }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: default;
}
.project-card::before {
  content: attr(data-index);
  position: absolute;
  top: 1rem; right: 1.5rem;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 900;
  color: rgba(200,245,66,0.05);
  line-height: 1;
  pointer-events: none;
}
.project-card:hover {
  transform: translateY(-8px);
  border-color: rgba(200,245,66,0.4);
  box-shadow: 0 24px 64px rgba(0,0,0,0.4), 0 0 40px var(--glow);
}
.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.project-emoji {
  font-size: 2rem;
  line-height: 1;
}
.card-links {
  display: flex;
  gap: 0.5rem;
}
.card-link-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: 6px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--muted);
  transition: all var(--transition);
}
.card-link-btn:hover {
  background: rgba(200,245,66,0.12);
  border-color: var(--accent);
  color: var(--accent);
}
.card-link-btn /*.linkedin:hover*/i {
  background: rgba(0,119,181,0.15);
  border-color: #0077b5;
  color: #0077b5;
}
/*added*/
.project-card:hover .card-link-btn i { 
  opacity: 1;
  transform: scale(1);
}

/*-----------*/
.card-link-btn.demo:hover {
  background: rgba(66,245,200,0.12);
  border-color: var(--teal);
  color: var(--teal);
}
.project-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  line-height: 1.3;
}
.project-desc {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}
.project-bullets {
  list-style: none;
  margin-bottom: 1.2rem;
  flex: 1;
}
.project-bullets li {
  font-size: 0.82rem;
  color: var(--muted);
  padding: 0.25rem 0 0.25rem 1.2rem;
  position: relative;
  line-height: 1.6;
}
.project-bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}
.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}
.project-stack span {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* ============================================================
   EXPERIENCE — Timeline
   ============================================================ */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 780px;
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 99px;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  display: grid;
  grid-template-columns: 100px 20px 1fr;
  gap: 0 1.5rem;
  align-items: start;
  padding-bottom: 3rem;
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  padding-top: 0.25rem;
  text-align: right;
  line-height: 1.5;
}
.timeline-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 14px var(--accent);
  margin-top: 0.35rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  justify-self: center;
}
.timeline-body { padding-bottom: 0.5rem; }
.timeline-body h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}
.timeline-org {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.timeline-desc {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.85;
  margin-bottom: 1rem;
}
.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.timeline-tags span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  background: rgba(200,245,66,0.06);
  border: 1px solid rgba(200,245,66,0.2);
  color: var(--accent);
}

/* ============================================================
   CERTIFICATIONS
   ============================================================ */
.certs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}
.cert-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid transparent;
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: all var(--transition);
  position: relative;
}
.cert-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.cert-card.azure  { border-left-color: #0078d4; }
.cert-card.aws    { border-left-color: #ff9900; }
.cert-card.nvidia { border-left-color: #76b900; }
.cert-card.cisco  { border-left-color: #1ba0d7; }
.cert-logo { font-size: 2.2rem; flex-shrink: 0; }
.cert-info { flex: 1; }
.cert-info h3 { font-size: 0.97rem; font-weight: 600; margin-bottom: 0.2rem; }
.cert-info p  { font-size: 0.78rem; color: var(--muted); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.08em; }
.cert-date { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); margin-top: 0.3rem; display: block; }
.cert-badge-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.cert-badge-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ============================================================
   EDUCATION
   ============================================================ */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.edu-card {
  display: flex;
  gap: 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  align-items: flex-start;
  transition: all var(--transition);
}
.edu-card:hover { border-color: rgba(200,245,66,0.3); transform: translateY(-4px); }
.edu-icon { font-size: 2rem; flex-shrink: 0; }
.edu-body h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin-bottom: 0.4rem; }
.edu-inst { color: var(--teal); font-weight: 600; font-size: 0.9rem; margin-bottom: 0.3rem; }
.edu-year { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); letter-spacing: 0.06em; margin-bottom: 1rem; }
.edu-score-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.score-badge {
  display: inline-block;
  padding: 0.28rem 0.9rem;
  border-radius: 20px;
  background: rgba(200,245,66,0.08);
  border: 1px solid rgba(200,245,66,0.25);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}
.award-badge {
  display: inline-block;
  padding: 0.28rem 0.9rem;
  border-radius: 20px;
  background: rgba(245,66,164,0.08);
  border: 1px solid rgba(245,66,164,0.25);
  color: var(--pink);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}
.coursework { }
.course-tags { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.course-tags span {
  padding: 0.38rem 0.9rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  border: 1px solid var(--border);
  color: var(--muted);
  transition: all var(--transition);
}
.course-tags span:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--glow);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-sub {
  color: var(--muted);
  font-size: 1rem;
  max-width: 520px;
  margin: -2rem auto 3rem;
  line-height: 1.9;
}
.contact-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.2rem;
}
.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 2rem 2.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  min-width: 160px;
  text-align: center;
}
.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.3), 0 0 30px var(--glow);
  color: var(--accent);
}
.contact-card span { font-weight: 600; font-size: 0.95rem; }
.contact-card small { font-family: var(--font-mono); font-size: 0.65rem; color: var(--muted); word-break: break-all; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 2rem;
}
.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-name {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}
.back-to-top {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  transition: all var(--transition);
}
.back-to-top:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--glow);
}

/* ============================================================
   KEYFRAMES
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-14px); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero { flex-direction: column; text-align: center; align-items: center; }
  .hero-content { max-width: 100%; }
  .hero-photo-wrapper { margin-left: 0; margin-top: 3rem; width: 240px; height: 240px; }
  .hero-photo, .photo-fallback { width: 240px; height: 240px; }
  .hero-cta { justify-content: center; }
  .social-row { justify-content: center; }
  .about-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section { padding: 4rem 0; }
  .section-title { font-size: 2rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: 1fr; }
  .edu-grid { grid-template-columns: 1fr; }
  .timeline::before { left: 0; }
  .timeline-item { grid-template-columns: 1fr; padding-left: 1.5rem; }
  .timeline-date { text-align: left; }
  .timeline-dot { position: absolute; left: -6px; }
  .timeline-item { position: relative; }
  .footer-inner { flex-direction: column; text-align: center; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .quick-info { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero-name { font-size: 2.8rem; }
  .hero-photo-wrapper { width: 200px; height: 200px; }
  .hero-photo, .photo-fallback { width: 200px; height: 200px; }
  .contact-card { padding: 1.5rem; min-width: 130px; }
}