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

:root {
  --bg:          #080c18;
  --bg2:         #0d1220;
  --card:        #111827;
  --card-border: #1e2a3a;
  --cyan:        #00d4ff;
  --cyan-dim:    rgba(0, 212, 255, 0.12);
  --purple:      #7c3aed;
  --purple-dim:  rgba(124, 58, 237, 0.15);
  --text:        #e2e8f0;
  --text-dim:    #94a3b8;
  --text-dimmer: #64748b;
  --radius:      12px;
  --glow:        0 0 40px rgba(0,212,255,0.15);
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
strong { color: var(--text); font-weight: 600; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.3s, box-shadow 0.3s;
}
.nav.scrolled {
  background: rgba(8,12,24,0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--card-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  color: #0b1220;
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-dim);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 8px 18px;
  border: 1px solid var(--cyan);
  border-radius: 999px;
  color: var(--cyan) !important;
  transition: background 0.2s, color 0.2s;
}
.nav-cta:hover { background: var(--cyan); color: #0b1220 !important; }

@media (max-width: 720px) {
  .nav-links li:not(:last-child) { display: none; }
}

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(0,212,255,0.10), transparent 55%),
    radial-gradient(ellipse at 80% 90%, rgba(124,58,237,0.15), transparent 55%),
    var(--bg);
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(148,163,184,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,184,0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}
.badge {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--cyan-dim);
  background: var(--cyan-dim);
  color: var(--cyan);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--text-dim);
  max-width: 720px;
  margin: 0 auto 32px;
}
.hero-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 44px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, background 0.2s, box-shadow 0.2s, color 0.2s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  color: #0b1220;
  box-shadow: var(--glow);
}
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost {
  border: 1px solid var(--card-border);
  color: var(--text);
}
.btn-ghost:hover { background: var(--card); border-color: var(--cyan-dim); }

.hero-meta {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.hero-meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}
.hero-meta-key {
  color: var(--cyan);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ===== SECTIONS ===== */
.section {
  padding: 96px 0;
  position: relative;
}
.section-alt { background: var(--bg2); }
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
  display: inline-flex;
  align-items: baseline;
  gap: 16px;
}
.section-num {
  font-family: 'JetBrains Mono', monospace;
  color: var(--cyan);
  font-size: 0.9rem;
  font-weight: 500;
}
.lead {
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 16px;
}
.lead + p { color: var(--text-dim); }

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: start;
}
.about-facts {
  display: grid;
  gap: 12px;
}
.fact {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.fact-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 6px;
}
.fact-label { font-size: 0.9rem; color: var(--text-dim); }
@media (max-width: 820px) { .about-grid { grid-template-columns: 1fr; } }

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.skill-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px 22px 18px;
  transition: border-color 0.2s, transform 0.15s;
}
.skill-card:hover {
  border-color: var(--cyan-dim);
  transform: translateY(-2px);
}
.skill-card h3 {
  font-size: 0.95rem;
  color: var(--cyan);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.skill-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.skill-card li {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-dim);
  background: var(--bg2);
  border: 1px solid var(--card-border);
  padding: 4px 10px;
  border-radius: 6px;
}

/* ===== TIMELINE ===== */
.timeline {
  position: relative;
  padding-left: 28px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-dim), var(--purple-dim), transparent);
}
.tl-item {
  position: relative;
  padding-bottom: 32px;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-marker {
  position: absolute;
  left: -25px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0,212,255,0.12);
}
.tl-item:not(:first-child) .tl-marker { background: var(--purple); box-shadow: 0 0 0 4px rgba(124,58,237,0.15); }
.tl-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: border-color 0.2s;
}
.tl-card:hover { border-color: var(--cyan-dim); }
.tl-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.tl-head h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}
.tl-company {
  color: var(--cyan);
  font-weight: 500;
}
.tl-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.tl-bullets {
  display: grid;
  gap: 6px;
}
.tl-bullets li {
  position: relative;
  padding-left: 18px;
  color: var(--text-dim);
  font-size: 0.94rem;
}
.tl-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan-dim);
}

/* ===== EDUCATION ===== */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.edu-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px 24px;
}
.edu-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.edu-meta {
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* ===== CONTACT ===== */
.contact-inner {
  text-align: center;
}
.contact-lead {
  max-width: 600px;
  margin: 0 auto 28px;
  color: var(--text-dim) !important;
}
.contact-cards {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 18px 24px;
  transition: border-color 0.2s, transform 0.15s;
  min-width: 230px;
  text-align: left;
}
.contact-card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.contact-key {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cyan);
}
.contact-val {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
}

/* ===== FOOTER ===== */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--card-border);
  background: var(--bg2);
}
.footer-inner {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-dimmer);
  font-size: 0.85rem;
}