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

:root {
  --bg:        #0a0a0b;
  --bg2:       #111114;
  --bg3:       #18181d;
  --border:    #1e1e24;
  --border2:   #2a2a33;
  --text:      #e8e8ef;
  --text-dim:  #7a7a8c;
  --text-dimmer: #4a4a5c;
  --accent:    #4ade80;
  --accent2:   #22d3ee;
  --red:       #f87171;

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

  --nav-h: 64px;
  --container: 1140px;
  --section-pad: 120px;
  --radius: 12px;
  --radius-sm: 8px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: #000; }

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
em { font-style: italic; }
strong { font-weight: 500; color: var(--text); }

/* ─── SCROLLBAR ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ─── NAV ───────────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  background: rgba(10,10,11,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: border-color .3s;
}
#nav.scrolled { border-color: var(--border); }

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text);
  letter-spacing: -0.5px;
}
.nav-logo .dot { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}
.nav-links a {
  font-size: .875rem;
  font-weight: 400;
  color: var(--text-dim);
  transition: color .2s;
  letter-spacing: .02em;
}
.nav-links a:hover { color: var(--text); }
.nav-links .nav-cta {
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 6px 18px;
  border-radius: 100px;
  font-size: .8rem;
  transition: background .2s, color .2s;
}
.nav-links .nav-cta:hover { background: var(--accent); color: #000; }

.nav-burger { display: none; background: none; border: none; cursor: pointer; padding: 4px; flex-direction: column; gap: 5px; }
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--text-dim); border-radius: 2px; transition: .2s; }

/* ─── HERO ───────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--nav-h) 48px 0;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 20% 40%, black 20%, transparent 80%);
  opacity: 0.35;
  pointer-events: none;
}

/* glowing orb */
.hero::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(74,222,128,.12) 0%, transparent 70%);
  top: -100px; right: -200px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--accent);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 9rem);
  font-weight: 800;
  line-height: .92;
  letter-spacing: -3px;
  color: var(--text);
  margin-bottom: 1.5rem;
}
.outline-text {
  -webkit-text-stroke: 2px var(--text-dimmer);
  color: transparent;
}

.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-dim);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}
.hero-sub .accent { color: var(--text); font-weight: 400; }
.hero-br { display: none; }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 4rem; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #000;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: .9rem;
  padding: 14px 28px;
  border-radius: 100px;
  letter-spacing: .02em;
  transition: opacity .2s, transform .15s;
}
.btn-primary:hover { opacity: .85; transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border2);
  font-size: .9rem;
  padding: 14px 28px;
  border-radius: 100px;
  transition: border-color .2s, color .2s;
}
.btn-ghost:hover { border-color: var(--text-dim); color: var(--text); }

.hero-stats {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  align-items: center;
}
.stat {
  display: flex;
  flex-direction: column;
  padding: 0 32px;
}
.stat:first-child { padding-left: 0; }
.stat-val {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}
.stat-val sup { font-size: .7em; vertical-align: super; font-weight: 700; color: var(--accent); }
.stat-label {
  font-size: .72rem;
  color: var(--text-dimmer);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-top: 4px;
  font-family: var(--font-mono);
}
.stat-sep {
  width: 1px;
  height: 40px;
  background: var(--border2);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 36px; left: 48px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-dimmer);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.scroll-line {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--text-dimmer);
}

/* ─── ANIMATIONS ────────────────────────────────────────── */
.animate-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp .6s ease forwards;
  animation-delay: var(--d, 0ms);
}
@keyframes fadeUp {
  to { opacity: 1; transform: none; }
}

/* ─── SECTION BASE ──────────────────────────────────────── */
.section { padding: var(--section-pad) 0; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 48px; }

.section-label {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--accent);
  letter-spacing: .15em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 3rem;
}
.section-title em { color: var(--accent); font-style: normal; }
.accent { color: var(--accent); }

/* ─── ABOUT ─────────────────────────────────────────────── */
.about-section { background: var(--bg); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-text p {
  color: var(--text-dim);
  font-size: 1rem;
  margin-bottom: 1.2rem;
}
.about-links { display: flex; flex-direction: column; gap: 10px; margin-top: 2rem; }
.about-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-dim);
  transition: color .2s;
}
.about-link:hover { color: var(--accent); }

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.highlight-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color .2s;
}
.highlight-card:hover { border-color: var(--border2); }
.hc-icon { font-size: 1.5rem; margin-bottom: 12px; }
.highlight-card h4 {
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.highlight-card p { font-size: .84rem; color: var(--text-dim); line-height: 1.6; }

/* ─── EXPERIENCE ────────────────────────────────────────── */
.exp-section { background: var(--bg2); }
.timeline { display: flex; flex-direction: column; gap: 0; }

.timeline-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}
.timeline-item:last-child { border-bottom: none; }

.tl-meta { padding-top: 4px; }
.tl-date {
  display: block;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-dimmer);
  line-height: 1.4;
  margin-bottom: 8px;
}
.tl-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .65rem;
  padding: 3px 10px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.tl-badge.current { background: rgba(74,222,128,.12); color: var(--accent); border: 1px solid rgba(74,222,128,.25); }

.tl-card { flex: 1; }
.tl-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; margin-bottom: 16px; flex-wrap: wrap; }

.tl-role {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
}
.tl-company {
  font-size: .85rem;
  color: var(--text-dim);
  margin-top: 4px;
}
.tl-company em { font-style: italic; color: var(--text-dimmer); }

.tl-tech-pills { display: flex; flex-wrap: wrap; gap: 6px; }
.tl-tech-pills span {
  font-family: var(--font-mono);
  font-size: .68rem;
  padding: 3px 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-dim);
}

.tl-bullets { padding-left: 0; }
.tl-bullets li {
  font-size: .9rem;
  color: var(--text-dim);
  padding: 5px 0 5px 16px;
  position: relative;
  line-height: 1.65;
}
.tl-bullets li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ─── PROJECTS ──────────────────────────────────────────── */
.projects-section { background: var(--bg); }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color .25s, transform .2s;
}
.project-card:hover { border-color: var(--border2); transform: translateY(-3px); }
.project-card.featured {
  border-color: rgba(74,222,128,.2);
  background: linear-gradient(135deg, var(--bg2) 0%, rgba(74,222,128,.03) 100%);
}
.project-card.featured:hover { border-color: rgba(74,222,128,.5); }

.pc-eyebrow {
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--accent);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.3px;
}
.pc-desc {
  font-size: .85rem;
  color: var(--text-dim);
  line-height: 1.7;
  flex: 1;
}
.pc-stack { display: flex; flex-wrap: wrap; gap: 6px; }
.pc-stack span {
  font-family: var(--font-mono);
  font-size: .65rem;
  padding: 3px 9px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-dimmer);
}
.pc-links { display: flex; gap: 16px; margin-top: 4px; }
.pc-link {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--accent);
  transition: opacity .2s;
}
.pc-link:hover { opacity: .7; }

/* ─── SKILLS ────────────────────────────────────────────── */
.skills-section { background: var(--bg2); }
.skills-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.skill-group {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.skill-group:last-child { border-bottom: none; }
.sg-title {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-dimmer);
  text-transform: uppercase;
  letter-spacing: .1em;
  padding-top: 4px;
}
.sg-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.sg-tag {
  font-family: var(--font-mono);
  font-size: .75rem;
  padding: 5px 14px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text-dim);
  transition: border-color .2s;
}
.sg-tag.primary {
  border-color: rgba(74,222,128,.3);
  color: var(--text);
  background: rgba(74,222,128,.05);
}
.sg-tag:hover { border-color: var(--border2); }

/* ─── EDUCATION ─────────────────────────────────────────── */
.edu-section { background: var(--bg); }
.edu-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  margin-bottom: 24px;
}
.edu-year {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--accent);
  margin-bottom: 6px;
}
.edu-inst {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.edu-loc { font-size: .8rem; color: var(--text-dimmer); margin-top: 4px; }

.edu-right h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.edu-right p { font-size: .9rem; color: var(--text-dim); }
.edu-courses { font-size: .8rem; color: var(--text-dimmer); margin-top: 10px; font-family: var(--font-mono); }

.cert-row { display: flex; gap: 16px; flex-wrap: wrap; }
.cert-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 24px;
  flex: 1;
  min-width: 240px;
}
.cert-icon { font-size: 1.4rem; }
.cert-name { font-size: .9rem; color: var(--text); font-weight: 400; }
.cert-issuer { font-size: .75rem; color: var(--text-dimmer); font-family: var(--font-mono); margin-top: 2px; }

/* ─── CONTACT ───────────────────────────────────────────── */
.contact-section { background: var(--bg2); }
.contact-inner { max-width: 700px; }
.contact-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 1rem;
}
.contact-sub { color: var(--text-dim); margin-bottom: 3rem; font-size: 1rem; }
.contact-links { display: flex; flex-direction: column; gap: 0; }
.contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: opacity .2s;
}
.contact-item:first-child { border-top: 1px solid var(--border); }
.contact-item:hover { opacity: .7; }
.ci-label {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-dimmer);
  text-transform: uppercase;
  letter-spacing: .1em;
  width: 80px;
}
.ci-value { font-size: .95rem; color: var(--text); }

/* ─── FOOTER ────────────────────────────────────────────── */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
}
.footer p { font-size: .82rem; color: var(--text-dimmer); font-family: var(--font-mono); }
.footer-note { margin-top: 6px; font-size: .72rem; }

/* ─── RESPONSIVE ────────────────────────────────────────── */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --section-pad: 80px; }
  #nav { padding: 0 24px; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }

  .hero { padding: var(--nav-h) 24px 0; }
  .hero-name { letter-spacing: -2px; }
  .hero-scroll-hint { left: 24px; }

  .container { padding: 0 24px; }

  .timeline-item { grid-template-columns: 1fr; gap: 12px; }
  .tl-meta { display: flex; align-items: center; gap: 12px; }
  .tl-date { margin-bottom: 0; }

  .projects-grid { grid-template-columns: 1fr; }

  .skill-group { grid-template-columns: 1fr; gap: 12px; }
  .sg-title { padding-top: 0; }

  .edu-card { grid-template-columns: 1fr; gap: 16px; }

  .tl-header { flex-direction: column; }

  .hero-stats { gap: 0; }
  .stat { padding: 0 20px; }

  .hero-br { display: block; }
}

@media (max-width: 480px) {
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .stat-sep { display: none; }
  .stat { padding: 0; width: 45%; }

  .cert-row { flex-direction: column; }
}

/* ─── MOBILE NAV ────────────────────────────────────────── */
.mobile-nav-open .nav-links {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 24px;
  gap: 20px;
}