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

:root {
  --bg:           #0a0a0a;
  --bg-card:      #111111;
  --bg-card-hover:#141414;
  --border:       #1e1e1e;
  --border-hover: #2a2a2a;
  --text:         #d4d4d4;
  --text-muted:   #555555;
  --text-dim:     #888888;
  --accent:       #00FF41;       /* matrix green — was purple */
  --accent-dim:   rgba(0,255,65,.12);
  --accent-glow:  rgba(0,255,65,.25);
  --font:         'JetBrains Mono', 'Courier New', monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #222; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #333; }

/* ============================================================
   SELECTION
   ============================================================ */
::selection {
  background: var(--accent-dim);
  color: var(--accent);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 56px;
  background: rgba(10,10,10,0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-logo {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.02em;
  transition: opacity .2s;
}
.nav-logo:hover { opacity: .7; }

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  transition: color .2s;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -3px;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width .25s ease;
}
.nav-link:hover, .nav-link.active {
  color: var(--text);
}
.nav-link.active::after,
.nav-link:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--text-muted);
  transition: all .25s;
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 56px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(10,10,10,.97);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
  }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 13px; padding: .6rem 0; }
}

/* ============================================================
   MAIN LAYOUT
   ============================================================ */
.main {
  max-width: 680px;
  margin: 0 auto;
  padding: 140px 2rem 80px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  margin-bottom: 80px;
}

.hero-title {
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}

.accent {
  color: var(--accent);
}

/* typewriter cursor */
.typewriter::after {
  content: '_';
  animation: blink .9s step-end infinite;
  color: var(--accent);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.hero-sub {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 560px;
}

.hero-cta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-link {
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.04em;
  transition: opacity .2s, letter-spacing .2s;
}
.cta-link:hover {
  opacity: .7;
  letter-spacing: 0.08em;
}

/* ============================================================
   SECTION LABEL
   ============================================================ */
.section-label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  font-weight: 400;
}

/* ============================================================
   PROJECT CARDS
   ============================================================ */
.project-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 28px 28px 24px;
  margin-bottom: 12px;
  transition: border-color .25s, background .25s, transform .2s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-dim) 0%, transparent 60%);
  opacity: 0;
  transition: opacity .3s;
}
.project-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}
.project-card:hover::before {
  opacity: 1;
}

.featured-card {
  border-color: rgba(0,255,65,.15);
}
.featured-card:hover {
  border-color: rgba(0,255,65,.35);
  box-shadow: 0 0 40px rgba(0,255,65,.06);
}

.card-tag {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.card-tag.launching { color: var(--accent); }

.card-name {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.card-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.tag {
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 8px;
  background: rgba(255,255,255,.02);
  transition: border-color .2s, color .2s;
}
.project-card:hover .tag {
  border-color: rgba(0,255,65,.2);
  color: var(--text);
}

.card-cta {
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.06em;
  opacity: .7;
  transition: opacity .2s;
}
.project-card:hover .card-cta { opacity: 1; }

/* ============================================================
   PAGE HEADER (used on sub-pages)
   ============================================================ */
.page-header {
  margin-bottom: 60px;
}
.page-title {
  font-size: clamp(20px, 3.5vw, 28px);
  font-weight: 500;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.page-sub {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ============================================================
   PROJECTS PAGE
   ============================================================ */
.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-meta {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-body {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.9;
}

.about-body p {
  margin-bottom: 20px;
}

.about-body .highlight {
  color: var(--text);
}

.experience-block {
  margin-bottom: 36px;
}

.exp-header {
  margin-bottom: 16px;
}

.exp-company {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 2px;
}

.exp-role {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.exp-date {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-left: auto;
}

.exp-meta {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 12px;
}

.exp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.exp-list li {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.7;
  padding-left: 14px;
  position: relative;
}
.exp-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  opacity: .6;
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 40px 0;
}

.education-item {
  margin-bottom: 24px;
}

.edu-school {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}

.edu-degree {
  font-size: 12px;
  color: var(--text-muted);
}

.thesis-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
  margin-top: 28px;
}

.thesis-title {
  font-size: 12px;
  color: var(--text);
  line-height: 1.6;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  transition: border-color .25s, background .25s, transform .15s;
  cursor: pointer;
}
.contact-item:hover {
  border-color: rgba(0,255,65,.25);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.contact-platform {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
  min-width: 90px;
}

.contact-handle {
  font-size: 12px;
  color: var(--text);
  flex: 1;
  padding: 0 1rem;
}

.contact-arrow {
  font-size: 12px;
  color: var(--accent);
  opacity: .6;
  transition: opacity .2s, transform .2s;
}
.contact-item:hover .contact-arrow {
  opacity: 1;
  transform: translateX(4px);
}

/* ============================================================
   FADE IN ANIMATION
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   CURSOR GLOW (subtle)
   ============================================================ */
.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(0,255,65,.04) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  transition: left .12s ease, top .12s ease;
  z-index: 0;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 2rem;
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 640px) {
  .main { padding: 100px 1.25rem 60px; }
  .project-card { padding: 22px 20px 18px; }
  .contact-item { padding: 14px 16px; }
}