/* ==========================================================================
   Palette:
     --bg        #0A0F1E  deep space navy 
     --surface   #101A30  card surface
     --line      #22314F  hairline borders
     --text      #DCE6F5  primary text
     --muted     #8494B4  secondary text
     --cyan      #3FE0E6  primary accent (scan / signal)
     --violet    #9D6BFF  secondary accent (used sparingly)
   Type:
     Chakra Petch  — display (angular, technical, but clean)
     IBM Plex Sans — body
     IBM Plex Mono — labels, metadata, "machine voice"
   ========================================================================== */

:root {
  --bg: #0A0F1E;
  --surface: rgba(16, 26, 48, 0.72);
  --surface-solid: #101A30;
  --line: #22314F;
  --text: #DCE6F5;
  --muted: #8494B4;
  --cyan: #3FE0E6;
  --cyan-dim: rgba(63, 224, 230, 0.12);
  --violet: #9D6BFF;
  --font-display: "Chakra Petch", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --max-width: 1060px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: var(--font-mono); }

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ------------------------------------------------------- background canvas */
#pointcloud {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* everything else sits above the canvas */
.site-header, main, .site-footer { position: relative; z-index: 1; }

/* ------------------------------------------------------------------ header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 15, 30, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.8rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--text);
}
.nav-brand:hover { text-decoration: none; }
.brand-mark { color: var(--cyan); }
.brand-accent { color: var(--cyan); }

.nav-links {
  display: flex;
  gap: 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: lowercase;
}
.nav-links a:hover { color: var(--cyan); text-decoration: none; }
.nav-cta { color: var(--cyan) !important; }

.nav-toggle { display: none; }

/* -------------------------------------------------------------------- hero */
.hero {
  min-height: 88vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 4rem 1.5rem 3rem;
  position: relative;
}

.hero-eyebrow {
  color: var(--cyan);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  margin: 0 0 1rem;
  opacity: 0.85;
}

.hero-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  letter-spacing: 0.02em;
  margin: 0;
  line-height: 1.05;
  text-shadow: 0 0 32px rgba(63, 224, 230, 0.25);
}

.hero-role {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--cyan);
  font-size: clamp(1rem, 2.6vw, 1.3rem);
  letter-spacing: 0.06em;
  margin: 0.8rem 0 0;
}

.hero-tagline {
  max-width: 34rem;
  color: var(--muted);
  margin: 1.2rem auto 0;
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  margin-top: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-availability {
  margin-top: 2.2rem;
  font-size: 0.78rem;
  color: var(--violet);
  letter-spacing: 0.04em;
}

.hero-hint {
  position: absolute;
  bottom: 1.4rem;
  font-size: 0.72rem;
  color: var(--muted);
  opacity: 0.6;
}

/* ----------------------------------------------------------------- buttons */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  padding: 0.65rem 1.4rem;
  border: 1px solid var(--cyan);
  border-radius: 3px;
  transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--cyan);
  color: #06121C;
}
.btn-primary:hover {
  box-shadow: 0 0 22px rgba(63, 224, 230, 0.45);
}

.btn-ghost {
  color: var(--cyan);
  background: transparent;
}
.btn-ghost:hover { background: var(--cyan-dim); }

/* ---------------------------------------------------------------- sections */
.section { padding: 4.5rem 1.5rem; }
.page-top { padding-top: 6rem; }

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-narrow { max-width: 760px; }

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  letter-spacing: 0.03em;
  margin: 0 0 2rem;
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--cyan);
  letter-spacing: 0.1em;
  opacity: 0.8;
}

.section-lede { color: var(--muted); margin-top: -1.2rem; margin-bottom: 2rem; }
.section-more { margin-top: 2rem; }

/* ------------------------------------------------------------------- cards */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.5rem 1.6rem;
  position: relative;
  backdrop-filter: blur(4px);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

/* corner tick — the one small cyberpunk flourish on every card */
.card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 14px;
  height: 14px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
  opacity: 0.7;
}

.card:hover { border-color: rgba(63, 224, 230, 0.45); }

/* -------------------------------------------------------------------- about */
.about-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 2rem;
  align-items: start;
}
.about-text p { margin: 0 0 1rem; }

.about-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.2rem 1.3rem;
  font-size: 0.82rem;
}
.panel-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px dashed var(--line);
}
.panel-row:last-child { border-bottom: none; }
.panel-key { color: var(--muted); }
.status-open { color: var(--cyan); }

/* --------------------------------------------------------------- experience */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  border-left: 1px solid var(--line);
  padding-left: 1.6rem;
}
.timeline-item::after {
  content: "";
  position: absolute;
  left: calc(-1.6rem - 5px);
  top: 1.9rem;
  width: 9px;
  height: 9px;
  background: var(--bg);
  border: 2px solid var(--cyan);
  transform: rotate(45deg);
}

.job-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: baseline;
}
.job-role {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  margin: 0;
}
.job-company { color: var(--cyan); margin: 0.15rem 0 0; font-size: 0.95rem; }
.job-period { color: var(--muted); font-size: 0.78rem; margin: 0; }

.job-points {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.94rem;
}
.job-points li { margin-bottom: 0.4rem; }
.job-points li::marker { color: var(--cyan); }

/* -------------------------------------------------------------------- tags */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  padding: 0;
  margin: 1.1rem 0 0;
}
.tag {
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid rgba(63, 224, 230, 0.25);
  border-radius: 2px;
  padding: 0.18rem 0.55rem;
}

/* ------------------------------------------------------------------ skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}
.skill-group-title {
  font-size: 0.85rem;
  color: var(--violet);
  letter-spacing: 0.06em;
  margin: 0;
  text-transform: uppercase;
}

/* ---------------------------------------------------------------- writings */
.writings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}
.writing-card { display: block; color: var(--text); }
.writing-card:hover { text-decoration: none; transform: translateY(-3px); }
.writing-date { font-size: 0.72rem; color: var(--muted); margin: 0 0 0.4rem; }
.writing-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}
.writing-summary { color: var(--muted); font-size: 0.92rem; margin: 0; }

/* --------------------------------------------------------------- education */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.2rem;
}

/* ----------------------------------------------------------------- contact */
.contact-card { padding: 2rem; }
.contact-lede {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--cyan);
  margin-top: 0;
}

/* --------------------------------------------------------------- post page */
.post-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  line-height: 1.15;
  margin: 0.4rem 0 0.8rem;
}
.post-tags { margin-bottom: 2rem; }

.post-body { color: var(--text); }
.post-body h2, .post-body h3 {
  font-family: var(--font-display);
  margin-top: 2.2rem;
}
.post-body h2 { border-bottom: 1px solid var(--line); padding-bottom: 0.4rem; }
.post-body code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--cyan-dim);
  border-radius: 2px;
  padding: 0.1em 0.35em;
}
.post-body pre {
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: 4px;
  padding: 1rem 1.2rem;
  overflow-x: auto;
}
.post-body pre code { background: none; padding: 0; }
.post-body blockquote {
  border-left: 3px solid var(--violet);
  margin-left: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

/* ------------------------------------------------------------------ footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(10, 15, 30, 0.85);
  padding: 2rem 1.5rem;
  margin-top: 2rem;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-note { color: var(--muted); font-size: 0.8rem; margin: 0; }

.social-links {
  display: flex;
  gap: 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.social-links a:hover { color: var(--cyan); text-decoration: none; }
.social-links svg { display: block; }

/* -------------------------------------------------------- scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ------------------------------------------------------------- responsive */
@media (max-width: 760px) {
  .about-grid { grid-template-columns: 1fr; }
  .timeline { border-left: none; padding-left: 0; }
  .timeline-item::after { display: none; }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 8px;
    cursor: pointer;
  }
  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--cyan);
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(10, 15, 30, 0.97);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 1.5rem 1rem;
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 0.5rem 0; }
}

/* -------------------------------------------------------- reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .writing-card:hover { transform: none; }
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
}
.gallery-item { padding: 0.8rem; margin: 0; }
.gallery-item img {
  width: 100%;
  display: block;
  border-radius: 3px;
  border: 1px solid var(--line);
}
.gallery-item figcaption {
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 0.6rem;
}
.hero-photo {
  width: 128px;
  height: 128px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--cyan);
  box-shadow: 0 0 24px rgba(63, 224, 230, 0.35);
  margin-bottom: 1.2rem;
}