:root {
  --bg: #0b0e14;
  --bg-alt: #10141d;
  --surface: #151a24;
  --surface-border: #232a38;
  --text: #cdd6e4;
  --text-dim: #7c8aa3;
  --accent: #2dd4bf;
  --accent-2: #a78bfa;
  --accent-soft: rgba(45, 212, 191, 0.12);
  --danger: #ff5f56;
  --warn: #ffbd2e;
  --ok: #27c93f;
  --mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 'SFMono-Regular', Menlo, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(45,212,191,0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(45,212,191,0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
}

a { color: inherit; text-decoration: none; }

.cursor-blink {
  display: inline-block;
  animation: blink 1s step-start infinite;
  color: var(--accent);
}
@keyframes blink { 50% { opacity: 0; } }

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(11, 14, 20, 0.75);
  border-bottom: 1px solid var(--surface-border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--mono);
  font-weight: 600;
  color: var(--accent);
  font-size: 0.95rem;
}
.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-dim);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.lang-btn {
  font-family: var(--mono);
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: border-color 0.2s, color 0.2s;
}
.lang-btn:hover { border-color: var(--accent); color: var(--accent); }
.burger {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.3rem;
  cursor: pointer;
}

/* HERO */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
}
.terminal {
  width: 100%;
  max-width: 780px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(45,212,191,0.03);
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--surface-border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot.red { background: var(--danger); }
.dot.yellow { background: var(--warn); }
.dot.green { background: var(--ok); }
.terminal-title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.terminal-body {
  padding: 28px 28px 34px;
  font-family: var(--mono);
}
.line { font-size: 1rem; color: var(--text); }
.prompt { color: var(--accent); margin-right: 6px; }
#typed { color: var(--text); }
.hero-output { margin-top: 24px; }
.hero-output.hidden { display: none; }
.hero-name {
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  min-height: 1.2em;
}
.hero-name.typing::after {
  content: '_';
  color: var(--accent);
  animation: blink 1s step-start infinite;
}
.hero-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
}
.hero-top-text { flex: 1; min-width: 0; }
.hero-photo { flex-shrink: 0; margin: 4px 0 0; }
.hero-photo-frame {
  position: relative;
  width: 176px;
  aspect-ratio: 1;
  border: 2px solid var(--accent);
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg);
  box-shadow: 0 0 0 5px var(--accent-soft), 0 10px 30px rgba(0,0,0,0.4);
}
.hero-photo-frame img,
.hero-photo-frame canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.hero-photo-frame img { object-fit: cover; opacity: 0; }
.hero-photo-frame canvas { transition: opacity 0.4s ease; }
.hero-photo.done img { opacity: 1; }
.hero-photo.done canvas { opacity: 0; }
.hero-photo-status {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  text-align: center;
  white-space: pre;
}
.hero-photo-status .ok { color: var(--ok); }
.reveal-item {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.reveal-item.visible {
  opacity: 1;
  transform: translateY(0);
}
.hero-role {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 1.05rem;
  margin-top: 6px;
}
.hero-tagline {
  font-family: var(--sans);
  color: var(--text-dim);
  margin-top: 14px;
  max-width: 540px;
  font-size: 0.98rem;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.badge {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 5px 10px;
  border-radius: 20px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(45,212,191,0.25);
}
.hero-cta {
  display: flex;
  gap: 14px;
  margin-top: 28px;
}
.btn {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 11px 22px;
  border-radius: 7px;
  transition: all 0.2s;
  display: inline-block;
}
.btn-primary {
  background: var(--accent);
  color: #06201c;
}
.btn-primary:hover { box-shadow: 0 0 24px rgba(45,212,191,0.45); transform: translateY(-1px); }
.btn-ghost {
  border: 1px solid var(--surface-border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent-2); color: var(--accent-2); }

/* SECTIONS */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 90px 24px;
}
.section-title {
  font-size: 1.7rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 40px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.tag {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 1.1rem;
}

/* ABOUT */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}
.about-text p { color: var(--text-dim); margin-bottom: 16px; }
.about-facts {
  list-style: none;
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.about-facts li {
  font-size: 0.88rem;
  color: var(--text-dim);
}
.about-facts strong { color: var(--accent); font-family: var(--mono); }
.about-code {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  padding: 22px;
  overflow-x: auto;
}
.about-code pre { font-family: var(--mono); font-size: 0.82rem; }
.code-comment { color: var(--text-dim); }
.code-key { color: var(--accent-2); }
.code-string { color: var(--accent); }
.code-num { color: var(--warn); }

/* TIMELINE */
.timeline {
  position: relative;
  padding-left: 32px;
  border-left: 2px solid var(--surface-border);
}
.timeline-item {
  position: relative;
  margin-bottom: 48px;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -40px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 10px rgba(45,212,191,0.5);
}
.timeline-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.timeline-content h3 {
  font-size: 1.15rem;
  color: #fff;
  margin-top: 6px;
}
.timeline-company {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-top: 2px;
  margin-bottom: 12px;
}
.timeline-content ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.timeline-content li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9rem;
  color: var(--text-dim);
}
.timeline-content li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent-2);
}

/* SKILLS */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.skill-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  padding: 22px;
  transition: border-color 0.2s, transform 0.2s;
}
.skill-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.skill-card h3 {
  font-size: 0.95rem;
  color: #fff;
  margin-bottom: 14px;
}
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 4px 9px;
  border-radius: 5px;
  background: var(--bg-alt);
  color: var(--text-dim);
  border: 1px solid var(--surface-border);
}

/* CERTS */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.cert-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  padding: 26px;
}
.cert-card-link {
  display: block;
  transition: border-color 0.2s, transform 0.2s;
}
.cert-card-link:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.cert-icon { font-size: 1.8rem; margin-bottom: 10px; }
.cert-card-split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.cert-card-text { flex: 1; min-width: 0; }
.cert-logo-frame {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cert-logo {
  height: 110px;
  width: auto;
  display: block;
  border-radius: 8px;
}
.cert-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 1px solid rgba(45,212,191,0.3);
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.03em;
}
.cert-card h3 { color: #fff; font-size: 1rem; margin-bottom: 6px; }
.cert-card p { color: var(--text-dim); font-size: 0.88rem; }
.cert-meta { margin-top: 8px; font-family: var(--mono); font-size: 0.75rem; color: var(--accent); }
.cert-id { font-family: var(--mono); font-size: 0.72rem; color: var(--text-dim); margin-top: 2px; }
.cert-view {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent-2);
}

/* CONTACT */
.contact-box {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
}
.contact-box > p { color: var(--text-dim); max-width: 500px; margin: 0 auto 28px; }
.contact-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.contact-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: var(--bg-alt);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  padding: 16px 26px;
  min-width: 170px;
  transition: border-color 0.2s, transform 0.2s;
}
.contact-link:not(.contact-link-disabled):hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.contact-link-disabled { opacity: 0.45; cursor: default; }
.contact-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.contact-value { font-size: 0.92rem; color: var(--accent); }

/* FOOTER */
.footer {
  text-align: center;
  padding: 32px 24px 48px;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.78rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open-mobile {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--surface-border);
    padding: 16px 24px;
    gap: 16px;
  }
  .burger { display: block; }
  .about-grid { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr 1fr; }
  .section { padding: 64px 20px; }
  .cert-card-split { flex-direction: column; align-items: flex-start; }
  .cert-logo-frame { align-self: center; }
  .hero-top { flex-direction: column-reverse; align-items: center; gap: 18px; }
  .hero-top-text { width: 100%; }
  .hero-photo-frame { width: 140px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-photo-frame img { opacity: 1; }
  .hero-photo-frame canvas { display: none; }
}