/* ============================================================
   VEERAPRASAD KODURI — PORTFOLIO CSS
   Dark Glassmorphism × Neon Accents × Premium DevOps Theme
   ============================================================ */

/* ---------- CSS VARIABLES ---------- */
:root {
  --bg-primary: #060a12;
  --bg-secondary: #0c1220;
  --bg-tertiary: #0f172a;
  --glass-bg: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --glass-hover: rgba(255,255,255,0.07);
  --accent-cyan: #00d4ff;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-orange: #f59e0b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --neon-glow: 0 0 20px rgba(0,212,255,0.3), 0 0 40px rgba(0,212,255,0.1);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --nav-h: 70px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #f0f4ff;
  --bg-secondary: #e8efff;
  --bg-tertiary: #dce7ff;
  --glass-bg: rgba(255,255,255,0.7);
  --glass-border: rgba(100,130,255,0.2);
  --glass-hover: rgba(255,255,255,0.85);
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --neon-glow: 0 0 20px rgba(59,130,246,0.3);
  --shadow-card: 0 8px 32px rgba(59,130,246,0.12);
}

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

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.7;
  cursor: default;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; }
strong { color: var(--accent-cyan); font-weight: 600; }

/* ---------- BACKGROUND CANVAS ---------- */
#bgCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ---------- LOADER ---------- */
#loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#loader.hidden { opacity: 0; visibility: hidden; }

.loader-inner { text-align: center; position: relative; width: 80px; height: 80px; }
.loader-ring {
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
  animation: spin 1.5s linear infinite;
}
.loader-ring:nth-child(1) { border-top-color: var(--accent-cyan); animation-duration: 1.2s; }
.loader-ring:nth-child(2) { border-right-color: var(--accent-blue); animation-duration: 1.8s; inset: 8px; }
.loader-ring:nth-child(3) { border-bottom-color: var(--accent-purple); animation-duration: 2.4s; inset: 16px; }
.loader-text {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  font-family: 'JetBrains Mono', monospace; font-size: 0.6rem;
  color: var(--accent-cyan); white-space: nowrap; margin-top: 60px;
}

/* ---------- SCROLL TO TOP ---------- */
#scrollTop {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 999;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent-cyan); color: var(--bg-primary);
  font-size: 1rem; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--neon-glow);
  opacity: 0; transform: translateY(20px);
  transition: var(--transition);
  pointer-events: none;
}
#scrollTop.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
#scrollTop:hover { transform: translateY(-4px) scale(1.1); }

/* ---------- GLASS CARD ---------- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius);
  transition: var(--transition);
}
.glass-card:hover {
  background: var(--glass-hover);
  border-color: rgba(0,212,255,0.2);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

/* ---------- NAVBAR ---------- */
#navbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h); z-index: 900;
  transition: var(--transition);
}
#navbar.scrolled {
  background: rgba(6,10,18,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}
[data-theme="light"] #navbar.scrolled { background: rgba(240,244,255,0.85); }

.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 0 2rem;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}

.nav-logo {
  font-family: 'Syne', sans-serif; font-size: 1.4rem; font-weight: 800;
  color: var(--text-primary); letter-spacing: 1px;
}
.logo-bracket { color: var(--accent-cyan); }

.nav-links {
  display: flex; gap: 2.5rem;
}
.nav-links a {
  font-family: 'DM Sans', sans-serif; font-size: 0.9rem;
  font-weight: 500; color: var(--text-secondary); letter-spacing: 0.5px;
  position: relative; padding-bottom: 2px;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent-cyan);
  transition: width 0.3s ease;
}
.nav-links a:hover { color: var(--accent-cyan); }
.nav-links a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 1rem; }

#themeToggle {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  color: var(--text-secondary); font-size: 0.9rem;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
#themeToggle:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); }

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

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.75rem; border-radius: 50px;
  font-family: 'DM Sans', sans-serif; font-weight: 500; font-size: 0.9rem;
  letter-spacing: 0.3px; transition: var(--transition); white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #fff; box-shadow: 0 4px 20px rgba(0,212,255,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,212,255,0.5); }
.btn-secondary {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  color: var(--text-primary);
}
.btn-secondary:hover { background: var(--glass-hover); border-color: var(--accent-cyan); color: var(--accent-cyan); }
.btn-outline {
  border: 1px solid var(--glass-border); color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--accent-purple); color: var(--accent-purple); }
.btn-sm {
  padding: 0.5rem 1.2rem; font-size: 0.8rem;
  background: var(--accent-cyan); color: var(--bg-primary); border-radius: 50px;
}
.btn-sm:hover { transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }

/* ---------- SECTION LAYOUT ---------- */
.section { padding: 7rem 0; position: relative; z-index: 1; }
.section-alt { background: linear-gradient(to bottom, transparent, rgba(15,23,42,0.4), transparent); }
[data-theme="light"] .section-alt { background: linear-gradient(to bottom, transparent, rgba(59,130,246,0.05), transparent); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

.section-header { text-align: center; margin-bottom: 4rem; }
.section-tag {
  font-family: 'JetBrains Mono', monospace; font-size: 0.8rem;
  color: var(--accent-cyan); letter-spacing: 3px; text-transform: uppercase;
  display: block; margin-bottom: 0.75rem;
}
.section-title {
  font-family: 'Syne', sans-serif; font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800; color: var(--text-primary); line-height: 1.2;
}
.section-sub { color: var(--text-secondary); margin-top: 0.75rem; font-size: 1.05rem; }

/* ---------- HERO ---------- */
#hero {
  min-height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 4rem;
  padding: calc(var(--nav-h) + 4rem) 2rem 4rem;
  max-width: 1200px; margin: 0 auto;
  position: relative; z-index: 1;
}

.hero-greeting {
  font-family: 'JetBrains Mono', monospace; font-size: 0.9rem;
  color: var(--accent-cyan); letter-spacing: 3px;
  text-transform: uppercase; margin-bottom: 0.75rem;
}
.hero-name {
  font-family: 'Syne', sans-serif; font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800; line-height: 1.1; margin-bottom: 1rem;
  color: var(--text-primary);
}
.hero-name span { color: var(--accent-cyan); }

.hero-role {
  font-family: 'JetBrains Mono', monospace; font-size: 1.1rem;
  color: var(--text-secondary); margin-bottom: 1.5rem;
}
.role-prefix { color: var(--accent-green); }
.cursor { display: inline-block; animation: blink 1s step-end infinite; color: var(--accent-cyan); }

.hero-tagline {
  font-size: 1.05rem; color: var(--text-secondary);
  max-width: 480px; margin-bottom: 2rem; line-height: 1.8;
}

.hero-btns {
  display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2rem;
}

.hero-badges { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.35rem 0.9rem; border-radius: 50px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  font-size: 0.82rem; color: var(--text-secondary);
}
.badge i { color: var(--accent-cyan); }

.hero-visual {
  position: relative; display: flex; align-items: center; justify-content: center;
}

.orb {
  position: absolute; border-radius: 50%;
  filter: blur(60px); opacity: 0.35;
  animation: float 6s ease-in-out infinite;
}
.orb1 { width: 300px; height: 300px; background: var(--accent-cyan); top: -40px; right: -40px; animation-delay: 0s; }
.orb2 { width: 200px; height: 200px; background: var(--accent-blue); bottom: -20px; left: 20px; animation-delay: 2s; }
.orb3 { width: 150px; height: 150px; background: var(--accent-purple); top: 50%; left: 50%; transform: translate(-50%,-50%); animation-delay: 4s; }

.hero-card {
  position: relative; z-index: 2; padding: 1.5rem;
  width: 100%; max-width: 420px;
  border: 1px solid rgba(0,212,255,0.2);
  box-shadow: 0 8px 40px rgba(0,212,255,0.12);
}
.card-header { display: flex; gap: 0.4rem; margin-bottom: 1rem; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }
.card-code {
  font-family: 'JetBrains Mono', monospace; font-size: 0.78rem;
  line-height: 1.8; white-space: pre; overflow-x: auto; color: var(--text-secondary);
}
.c-kw { color: var(--accent-purple); }
.c-st { color: #34d399; }
.c-val { color: var(--accent-cyan); }

/* ---------- ABOUT ---------- */
.about-grid {
  display: grid; grid-template-columns: 1fr 1.6fr;
  gap: 4rem; align-items: start;
}
.about-img-box { position: relative; }
.about-img-placeholder {
  aspect-ratio: 1; border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(139,92,246,0.08));
  border: 1px solid var(--glass-border);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 1rem;
}
.about-img-placeholder i { font-size: 5rem; color: var(--accent-cyan); opacity: 0.6; }
.about-img-placeholder p { font-family: 'Syne', sans-serif; font-size: 1.1rem; color: var(--text-secondary); }
.about-status {
  margin-top: 1rem; text-align: center;
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-size: 0.85rem; color: var(--accent-green);
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse 2s ease-in-out infinite;
}

.about-intro { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 1.25rem; line-height: 1.9; }
.about-stats {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 1rem; margin: 2rem 0;
}
.stat-card { padding: 1.25rem; text-align: center; }
.stat-card h3 { font-family: 'Syne', sans-serif; font-size: 2rem; font-weight: 800; color: var(--accent-cyan); }
.stat-card p { font-size: 0.82rem; color: var(--text-muted); margin-top: 0.25rem; }
.about-tools { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.5rem; }
.about-tools span {
  padding: 0.35rem 0.9rem; border-radius: 50px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  font-size: 0.82rem; color: var(--text-secondary);
}

/* ---------- SKILLS ---------- */
.skills-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
}
.skill-card {
  padding: 1.75rem 1.5rem;
  transition-delay: var(--delay, 0s);
}
.skill-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 1rem;
}
.skill-icon.aws { background: rgba(255,153,0,0.15); color: #ff9900; }
.skill-icon.docker { background: rgba(30,137,209,0.15); color: #1e89d1; }
.skill-icon.k8s { background: rgba(50,108,229,0.15); color: #326ce5; }
.skill-icon.tf { background: rgba(95,59,214,0.15); color: #5f3bd6; }
.skill-icon.jenkins { background: rgba(215,60,60,0.15); color: #d73c3c; }
.skill-icon.github { background: rgba(255,255,255,0.1); color: var(--text-primary); }
.skill-icon.linux { background: rgba(255,205,0,0.15); color: #ffcd00; }
.skill-icon.ansible { background: rgba(238,0,0,0.12); color: #ee0000; }
.skill-icon.python { background: rgba(55,118,171,0.15); color: #3776ab; }
.skill-icon.shell { background: rgba(0,212,255,0.12); color: var(--accent-cyan); }
.skill-icon.prom { background: rgba(231,81,40,0.15); color: #e75128; }
.skill-icon.grafana { background: rgba(242,130,14,0.15); color: #f2820e; }

.skill-card h3 { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1rem; margin-bottom: 0.4rem; }
.skill-card p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 1rem; }
.skill-bar { height: 4px; background: var(--glass-border); border-radius: 2px; overflow: hidden; }
.skill-fill {
  height: 100%; background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
  border-radius: 2px; width: 0; transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- EXPERIENCE / TIMELINE ---------- */
.timeline { position: relative; max-width: 800px; margin: 0 auto; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 1px; background: linear-gradient(to bottom, transparent, var(--accent-cyan), var(--accent-blue), transparent);
  transform: translateX(-50%);
}
.timeline-item {
  display: flex; align-items: flex-start; gap: 2rem;
  margin-bottom: 3rem; position: relative;
}
.timeline-item:nth-child(even) { flex-direction: row-reverse; }
.timeline-item:nth-child(even) .timeline-card { text-align: left; }

.timeline-dot {
  position: absolute; left: 50%; transform: translateX(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  display: flex; align-items: center; justify-content: center;
  color: var(--bg-primary); font-size: 1rem; z-index: 2;
  box-shadow: 0 0 20px rgba(0,212,255,0.4);
  flex-shrink: 0;
}
.timeline-dot.edu { background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue)); }

.timeline-card { flex: 1; padding: 2rem; max-width: calc(50% - 3rem); }
.timeline-meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 0.5rem; flex-wrap: wrap; gap: 0.5rem;
}
.timeline-company { font-family: 'Syne', sans-serif; font-weight: 700; color: var(--accent-cyan); font-size: 0.95rem; }
.timeline-period {
  font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
  color: var(--text-muted); background: var(--glass-bg);
  padding: 0.25rem 0.75rem; border-radius: 50px; border: 1px solid var(--glass-border);
}
.timeline-role { font-family: 'Syne', sans-serif; font-size: 1.15rem; font-weight: 700; margin-bottom: 1rem; }
.timeline-list { padding-left: 1.2rem; }
.timeline-list li {
  font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 0.5rem;
  list-style: disc; list-style-color: var(--accent-cyan);
}
.timeline-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.2rem; }
.timeline-tags span {
  padding: 0.25rem 0.75rem; border-radius: 50px;
  background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.2);
  font-size: 0.78rem; color: var(--accent-cyan);
}

/* ---------- PROJECTS ---------- */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(340px,1fr)); gap: 2rem; }
.project-card { overflow: hidden; transition-delay: var(--delay, 0s); }
.project-img { position: relative; aspect-ratio: 16/9; overflow: hidden; border-radius: var(--radius) var(--radius) 0 0; }
.project-img-inner {
  width: 100%; height: 100%; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 0.75rem;
  font-size: 3rem; font-family: 'Syne', sans-serif; font-weight: 700;
  font-size: 3.5rem; letter-spacing: 2px;
  transition: transform 0.4s ease;
}
.project-img-inner span { font-size: 1rem; letter-spacing: 3px; text-transform: uppercase; opacity: 0.8; }
.p1 { background: linear-gradient(135deg, #1a0533, #4a0080, #0a1a40); color: #d096ff; }
.p2 { background: linear-gradient(135deg, #001a2e, #003d6b, #00233d); color: #ff9900; }
.p3 { background: linear-gradient(135deg, #001a12, #003d28, #0d1b0d); color: #10b981; }

.project-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.3s ease;
}
.project-card:hover .project-overlay { opacity: 1; }
.project-card:hover .project-img-inner { transform: scale(1.06); }

.project-body { padding: 1.5rem; }
.project-body h3 { font-family: 'Syne', sans-serif; font-size: 1.1rem; font-weight: 700; margin-bottom: 0.6rem; }
.project-body p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 1rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.project-tags span {
  padding: 0.2rem 0.65rem; border-radius: 50px; font-size: 0.75rem;
  background: var(--glass-bg); border: 1px solid var(--glass-border); color: var(--text-muted);
}
.project-links { display: flex; gap: 1rem; }
.proj-link {
  font-size: 0.85rem; color: var(--text-secondary); display: flex; align-items: center; gap: 0.35rem;
}
.proj-link:hover { color: var(--accent-cyan); }

/* ---------- CERTIFICATIONS ---------- */
.certs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 2rem; }
.cert-card {
  padding: 2.5rem 2rem; text-align: center; position: relative; overflow: hidden;
  transition-delay: var(--delay, 0s);
}
.cert-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
}
.cert-badge {
  position: absolute; top: 1.25rem; right: 1.25rem;
  font-size: 0.7rem; padding: 0.25rem 0.7rem; border-radius: 50px;
  background: rgba(16,185,129,0.15); border: 1px solid rgba(16,185,129,0.3);
  color: var(--accent-green); letter-spacing: 1px; text-transform: uppercase;
}
.cert-icon {
  width: 72px; height: 72px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; margin: 0 auto 1.5rem;
}
.cert-icon.aws-cert { background: rgba(255,153,0,0.12); color: #ff9900; border: 1px solid rgba(255,153,0,0.25); }
.cert-icon.devops-cert { background: rgba(0,212,255,0.12); color: var(--accent-cyan); border: 1px solid rgba(0,212,255,0.25); }
.cert-icon.linux-cert { background: rgba(255,205,0,0.12); color: #ffcd00; border: 1px solid rgba(255,205,0,0.25); }
.cert-card h3 { font-family: 'Syne', sans-serif; font-size: 1.15rem; font-weight: 700; margin-bottom: 0.5rem; }
.cert-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }
.cert-footer {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 1.5rem; padding-top: 1rem;
  border-top: 1px solid var(--glass-border);
  font-size: 0.8rem; color: var(--text-muted);
}
.cert-footer span:first-child { color: var(--accent-green); }
.cert-footer i { margin-right: 0.3rem; }

/* ---------- CONTACT ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 3rem; }
.contact-info { display: flex; flex-direction: column; gap: 1rem; }
.contact-item {
  display: flex; align-items: center; gap: 1.25rem; padding: 1.25rem 1.5rem;
}
.contact-icon {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.2);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-cyan); font-size: 1rem;
}
.contact-item h4 { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.2rem; }
.contact-item a { color: var(--text-secondary); font-size: 0.92rem; }
.contact-item a:hover { color: var(--accent-cyan); }

.contact-form { padding: 2.5rem; }
.contact-form h3 { font-family: 'Syne', sans-serif; font-size: 1.5rem; font-weight: 700; margin-bottom: 1.75rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-size: 0.83rem; color: var(--text-muted); margin-bottom: 0.4rem; letter-spacing: 0.5px; }
.form-group input,
.form-group textarea {
  width: 100%; padding: 0.85rem 1rem; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04); border: 1px solid var(--glass-border);
  color: var(--text-primary); font-size: 0.92rem; outline: none;
  transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-note { text-align: center; margin-top: 1rem; font-size: 0.85rem; min-height: 1.2em; }
.form-note.success { color: var(--accent-green); }
.form-note.error { color: #f87171; }

/* ---------- FOOTER ---------- */
#footer {
  background: var(--bg-tertiary);
  border-top: 1px solid var(--glass-border);
  padding: 4rem 0 2rem; position: relative; z-index: 1;
}
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem; margin-bottom: 3rem;
}
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; margin-top: 0.75rem; max-width: 260px; }
.footer-links h4,
.footer-social-col h4 {
  font-family: 'Syne', sans-serif; font-size: 0.9rem; font-weight: 700;
  margin-bottom: 1.25rem; color: var(--text-primary);
}
.footer-links ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a { color: var(--text-muted); font-size: 0.88rem; }
.footer-links a:hover { color: var(--accent-cyan); }
.footer-socials { display: flex; gap: 1rem; flex-wrap: wrap; }
.footer-socials a {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 1rem; transition: var(--transition);
}
.footer-socials a:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); transform: translateY(-3px); }
.footer-bottom {
  border-top: 1px solid var(--glass-border); padding-top: 2rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem;
  font-size: 0.84rem; color: var(--text-muted);
}
.footer-bottom strong { color: var(--accent-cyan); }

/* ---------- REVEAL ANIMATIONS ---------- */
.reveal-up, .reveal-left, .reveal-right {
  opacity: 0; transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.4,0,0.2,1);
  transition-delay: var(--delay, 0s);
}
.reveal-up { transform: translateY(40px); }
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.revealed { opacity: 1 !important; transform: none !important; }

/* ---------- KEYFRAMES ---------- */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes float {
  0%,100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}
@keyframes pulse {
  0%,100% { opacity: 1; box-shadow: 0 0 8px var(--accent-green); }
  50% { opacity: 0.6; box-shadow: 0 0 16px var(--accent-green); }
}
@keyframes dots {
  0% { content: '.'; }
  33% { content: '..'; }
  66% { content: '...'; }
}
.dots { display: inline-block; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  #hero { grid-template-columns: 1fr; min-height: auto; padding-top: calc(var(--nav-h) + 3rem); }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .about-image-wrap { max-width: 300px; margin: 0 auto; }
  .timeline::before { left: 22px; }
  .timeline-item { flex-direction: column !important; padding-left: 60px; }
  .timeline-dot { left: 22px; transform: translateX(-50%); }
  .timeline-card { max-width: 100% !important; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { 
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: rgba(6,10,18,0.97); backdrop-filter: blur(20px);
    flex-direction: column; padding: 2rem;
    gap: 1.5rem; transform: translateX(100%); transition: transform 0.35s ease;
    border-bottom: 1px solid var(--glass-border);
  }
  [data-theme="light"] .nav-links { background: rgba(240,244,255,0.97); }
  .nav-links.open { transform: translateX(0); }
  .hamburger { display: flex; }
  .hero-btns { flex-direction: column; }
  .hero-btns .btn { width: 100%; justify-content: center; }
  .about-stats { grid-template-columns: repeat(3,1fr); }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: 1fr; }
  .hero-btns .btn { font-size: 0.85rem; }
}