/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #060b18;
  --bg2:        #0b1120;
  --bg3:        #0f1729;
  --glass:      rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --cyan:       #00d4ff;
  --cyan-dim:   rgba(0,212,255,0.12);
  --purple:     #7c3aed;
  --purple-dim: rgba(124,58,237,0.12);
  --gold:       #f59e0b;
  --gold-dim:   rgba(245,158,11,0.12);
  --green:      #10b981;
  --text:       #f0f4ff;
  --muted:      #8892a4;
  --muted2:     #5a6478;
  --radius:     14px;
  --radius-sm:  8px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

/* Subtle grid texture */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

a { color: var(--cyan); text-decoration: none; }
section, nav, footer { position: relative; z-index: 1; }

/* ── Nav ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 3rem;
  height: 64px;
  background: rgba(6,11,24,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-logo {
  font-size: 1.1rem; font-weight: 800; letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

nav ul { display: flex; gap: 0.25rem; list-style: none; }
nav ul a {
  color: var(--muted); font-size: 0.85rem; font-weight: 500;
  padding: 0.4rem 0.9rem; border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
nav ul a:hover { color: var(--text); background: var(--glass); }
nav ul a.active { color: var(--cyan); background: var(--cyan-dim); }

/* ── Sections ── */
section { padding: 6rem 0; }
.section-inner { max-width: 1100px; margin: 0 auto; padding: 0 2.5rem; }

.section-title {
  font-size: 1.9rem; font-weight: 800; letter-spacing: -0.03em;
  margin-bottom: 3rem; display: flex; align-items: center; gap: 1rem;
  color: var(--text);
}
.section-title::before {
  content: '';
  display: inline-block; width: 4px; height: 1.9rem;
  background: linear-gradient(to bottom, var(--cyan), var(--purple));
  border-radius: 2px; flex-shrink: 0;
}

/* ── Hero ── */
#hero {
  display: flex; align-items: center;
  padding: 8rem 2.5rem 5rem;
  max-width: 1100px; margin: 0 auto;
  gap: 5rem;
}

/* Glow blobs */
#hero::before, #hero::after {
  content: ''; position: absolute; border-radius: 50%;
  filter: blur(80px); pointer-events: none; z-index: 0;
}
#hero::before {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,212,255,0.07), transparent 70%);
  top: 0; right: 0;
}
#hero::after {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(124,58,237,0.07), transparent 70%);
  bottom: 0; left: 0;
}

.hero-content { flex: 1; position: relative; z-index: 1; }

.hero-tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em;
  color: var(--cyan); text-transform: uppercase; margin-bottom: 1.25rem;
  padding: 0.35rem 1rem; border-radius: 999px;
  background: var(--cyan-dim); border: 1px solid rgba(0,212,255,0.2);
}
.hero-tag::before { content: '●'; font-size: 0.5rem; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }

.hero-content h1 {
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 900; line-height: 1.05; letter-spacing: -0.04em;
  margin-bottom: 1.5rem; color: var(--text);
}
.hero-content h1 span {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: 1.05rem; color: var(--muted); font-weight: 400;
  max-width: 500px; margin-bottom: 2.5rem; line-height: 1.8;
}

.hero-badges {
  display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 2.5rem;
}
.hero-badges span {
  padding: 0.35rem 0.9rem; border-radius: 999px;
  background: var(--glass); border: 1px solid var(--glass-border);
  font-size: 0.8rem; color: var(--muted); font-weight: 500;
  transition: border-color var(--transition), color var(--transition);
}
.hero-badges span:hover { border-color: var(--cyan); color: var(--text); }

.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn-primary {
  padding: 0.8rem 2rem; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  color: #fff; font-weight: 700; font-size: 0.9rem; letter-spacing: 0.01em;
  transition: opacity var(--transition), transform var(--transition);
  box-shadow: 0 4px 24px rgba(0,212,255,0.25);
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-2px); }

.btn-outline {
  padding: 0.8rem 2rem; border-radius: var(--radius);
  border: 1px solid var(--glass-border); color: var(--text);
  font-weight: 600; font-size: 0.9rem;
  background: var(--glass);
  transition: border-color var(--transition), transform var(--transition);
}
.btn-outline:hover { border-color: var(--cyan); transform: translateY(-2px); }

/* ── Hero Visual ── */
.hero-visual {
  flex: 0 0 300px; height: 300px;
  position: relative; display: flex; align-items: center; justify-content: center;
  z-index: 1;
}

.hero-avatar {
  width: 110px; height: 110px; border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 900; color: #fff;
  z-index: 2; position: relative;
  box-shadow: 0 0 0 8px rgba(0,212,255,0.08), 0 0 60px rgba(0,212,255,0.3);
}

.orbit-ring {
  position: absolute; inset: 0;
  animation: spin 22s linear infinite;
}
.orbit-icon {
  position: absolute; width: 46px; height: 46px; border-radius: 50%;
  background: var(--bg3); border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; top: 50%; left: 50%;
  transform: rotate(calc(var(--i) * 60deg)) translateY(-138px) rotate(calc(var(--i) * -60deg));
  margin: -23px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── About ── */
#about { background: var(--bg2); }

.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 4rem; align-items: start; }

.about-text p {
  color: var(--muted); margin-bottom: 1.1rem;
  font-size: 0.95rem; line-height: 1.85;
  text-align: justify;
}
.about-text strong { color: var(--text); font-weight: 600; }

.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.stat-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 1.5rem;
  text-align: center; backdrop-filter: blur(8px);
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover { border-color: rgba(0,212,255,0.3); transform: translateY(-4px); }

.stat-num {
  display: block; font-size: 2.4rem; font-weight: 900; letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 0.75rem; color: var(--muted); margin-top: 0.3rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }

/* ── Skills ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.skill-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 1.5rem;
  backdrop-filter: blur(8px);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.skill-card:hover {
  border-color: rgba(0,212,255,0.25);
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px rgba(0,212,255,0.1);
}

.skill-icon { font-size: 1.8rem; margin-bottom: 0.75rem; }
.skill-card h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 1rem; color: var(--text); letter-spacing: 0.01em; }

.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tags span {
  padding: 0.2rem 0.6rem; border-radius: 999px;
  background: var(--cyan-dim); border: 1px solid rgba(0,212,255,0.15);
  font-size: 0.72rem; color: var(--cyan); font-weight: 500;
}

/* ── Experience ── */
#experience { background: var(--bg2); }

.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: ''; position: absolute; left: 0; top: 8px; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--cyan), var(--purple), transparent);
}

.timeline-item { position: relative; margin-bottom: 2rem; }

.timeline-dot {
  position: absolute; left: -2.38rem; top: 1.6rem;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--cyan);
  border: 2px solid var(--bg2);
  box-shadow: 0 0 0 4px rgba(0,212,255,0.15), 0 0 16px rgba(0,212,255,0.4);
}

.timeline-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 1.75rem;
  backdrop-filter: blur(8px);
  transition: border-color var(--transition), transform var(--transition);
}
.timeline-card:hover { border-color: rgba(0,212,255,0.2); transform: translateX(4px); }

.timeline-header {
  display: flex; justify-content: space-between;
  align-items: flex-start; flex-wrap: wrap; gap: 0.75rem;
  margin-bottom: 1.1rem;
}

.timeline-header h3 { font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; }
.company {
  display: block; font-size: 0.82rem; font-weight: 600; margin-top: 0.25rem;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.period {
  font-size: 0.75rem; color: var(--muted);
  background: var(--glass); padding: 0.3rem 0.8rem;
  border-radius: 999px; border: 1px solid var(--glass-border);
  white-space: nowrap; font-weight: 500;
}

.timeline-card ul { padding-left: 1.1rem; }
.timeline-card li {
  color: var(--muted); font-size: 0.875rem; margin-bottom: 0.45rem; line-height: 1.7;
}
.timeline-card li::marker { color: var(--cyan); }

/* ── Projects ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 1.75rem;
  backdrop-filter: blur(8px);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative; overflow: hidden;
}
.project-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.project-card:hover { border-color: rgba(0,212,255,0.2); transform: translateY(-5px); box-shadow: 0 16px 48px rgba(0,0,0,0.35); }
.project-card:hover::before { opacity: 1; }
.project-card.featured { border-color: rgba(0,212,255,0.2); }
.project-card.featured::before { opacity: 0.6; }

.project-tag {
  font-size: 0.7rem; color: var(--cyan); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.75rem;
}
.project-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.75rem; letter-spacing: -0.01em; }
.project-card p { color: var(--muted); font-size: 0.875rem; margin-bottom: 1.25rem; line-height: 1.75; }

/* ── Certifications ── */
#certifications { background: var(--bg2); }

.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.25rem;
}

.cert-card {
  border-radius: var(--radius); padding: 2rem 1.5rem;
  text-align: center; border: 1px solid var(--glass-border);
  background: var(--glass); backdrop-filter: blur(8px);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.cert-card:hover { transform: translateY(-6px); box-shadow: 0 16px 48px rgba(0,0,0,0.4); }

.cert-card.aws    { border-color: rgba(255,153,0,0.2); }
.cert-card.aws:hover { border-color: rgba(255,153,0,0.4); box-shadow: 0 16px 48px rgba(255,153,0,0.1); }
.cert-card.k8s    { border-color: rgba(50,108,229,0.2); }
.cert-card.k8s:hover { border-color: rgba(50,108,229,0.4); box-shadow: 0 16px 48px rgba(50,108,229,0.1); }
.cert-card.azure  { border-color: rgba(0,120,212,0.2); }
.cert-card.azure:hover { border-color: rgba(0,120,212,0.4); box-shadow: 0 16px 48px rgba(0,120,212,0.1); }
.cert-card.platform { border-color: rgba(16,185,129,0.2); }
.cert-card.platform:hover { border-color: rgba(16,185,129,0.4); box-shadow: 0 16px 48px rgba(16,185,129,0.1); }

.cert-logo {
  font-size: 2rem; font-weight: 900; margin-bottom: 0.9rem; display: block;
  letter-spacing: -0.02em;
}
.cert-card.aws     .cert-logo { color: #ff9900; }
.cert-card.k8s     .cert-logo { color: #326ce5; }
.cert-card.azure   .cert-logo { color: #0078d4; }
.cert-card.platform .cert-logo { color: var(--green); }

.cert-card h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.5rem; }
.cert-code { font-size: 0.75rem; color: var(--muted); font-weight: 500; }

/* ── Contact ── */
.contact-sub { color: var(--muted); margin-bottom: 2.5rem; font-size: 1rem; }

.contact-links { display: flex; flex-wrap: wrap; gap: 1rem; }

.contact-card {
  display: flex; align-items: center; gap: 0.85rem;
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 1.1rem 1.75rem;
  color: var(--text); font-size: 0.9rem; font-weight: 500;
  backdrop-filter: blur(8px);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.contact-card:hover {
  border-color: rgba(0,212,255,0.3); transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,212,255,0.1); color: var(--text);
}
.contact-icon { font-size: 1.25rem; }

/* ── Footer ── */
footer {
  text-align: center; padding: 2rem;
  color: var(--muted2); font-size: 0.8rem;
  border-top: 1px solid var(--glass-border);
}

/* ── Scroll Animations ── */
.fade-in {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 768px) {
  nav { padding: 0 1.5rem; }
  nav ul { display: none; }
  #hero { flex-direction: column; padding-top: 6rem; text-align: center; gap: 2rem; }
  .hero-visual { display: none; }
  .hero-badges { justify-content: center; }
  .hero-cta { justify-content: center; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .timeline-header { flex-direction: column; }
  .section-inner { padding: 0 1.5rem; }
}