/* =========================================================
   amandata.dev — token system
   "clinical cyber-pop": black lab-bench background, turquoise
   and magenta data accents, retro-terminal type.
   Black    : #060606   (page)
   Ink      : #F2F2F2   (text)
   Turquoise: #39C5BB   (EEG trace, key terms, primary accent)
   Magenta  : #F471B5   (secondary data accent)
   Grid     : #123B38   (technical grid lines)
   Display  : 'Press Start 2P' (hero / headings — retro terminal)
   Alt disp : 'Micro 5'        (section tags, kickers)
   Body     : 'Overpass Mono'  (everything else)
   ========================================================= */

:root{
  --bg:      #060606;
  --panel:   #0B0F0E;
  --ink:     #F2F2F2;
  --dim:     rgba(242,242,242,0.62);
  --faint:   rgba(242,242,242,0.38);
  --turq:    #39C5BB;
  --magenta: #F471B5;
  --grid:    rgba(57,197,187,0.07);
  --line:    rgba(242,242,242,0.14);

  --display: 'Press Start 2P', monospace;
  --micro:   'Micro 5', monospace;
  --body:    'Overpass Mono', monospace;

  --max: 760px;
  --edge: clamp(1.25rem, 5vw, 3rem);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  /* technical grid */
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
}

a{ color: var(--turq); }
::selection{ background: var(--turq); color: #060606; }

/* CRT vignette — pure overlay, never blocks clicks */
.vignette{
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 60;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,0.55) 100%);
}

/* reading progress bar */
.progress{
  position: fixed; top: 0; left: 0;
  height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--turq), var(--magenta));
  z-index: 70;
}

/* ================= NAV ================= */
.nav{
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem var(--edge);
  background: rgba(6,6,6,0.82);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav__mark{
  font-family: var(--display);
  font-size: 0.85rem;
  color: var(--ink);
  text-decoration: none;
}
.nav__mark:hover{ color: var(--turq); }
.nav__links{ display: flex; gap: 1.6rem; }
.nav__link{
  font-family: var(--micro);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--dim);
  text-decoration: none;
  padding: 0.2rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.nav__link:hover{ color: var(--ink); }
.nav__link.is-active{ color: var(--turq); border-color: var(--turq); }

/* ================= HERO ================= */
.hero{
  position: relative;
  min-height: 94svh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 5rem var(--edge) 2.5rem;
  overflow: hidden;
}

/* twin light ribbons behind the hero */
.ribbons{
  position: absolute; inset: -20%;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 42%, rgba(57,197,187,0.16) 47%, transparent 53%),
    linear-gradient(115deg, transparent 55%, rgba(244,113,181,0.12) 60%, transparent 66%);
  filter: blur(30px);
}

.hero__kicker{
  font-family: var(--micro);
  font-size: 1.3rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 1.4rem;
}
.hero__title{
  font-family: var(--display);
  font-size: clamp(1.9rem, 7vw, 4.2rem);
  line-height: 1.25;
  margin: 0 0 1.6rem;
  text-shadow: 0 0 24px rgba(57,197,187,0.35);
}
.hero__tagline{
  font-family: var(--micro);
  font-size: 1.6rem;
  letter-spacing: 0.1em;
  color: var(--turq);
  margin: 0 0 2.2rem;
  min-height: 2.2em;
}
.caret{
  display: inline-block;
  width: 0.55em; height: 1em;
  background: var(--turq);
  vertical-align: -0.12em;
  margin-left: 2px;
  animation: blink 1s steps(1) infinite; /* ~1Hz, well under the 3Hz limit */
}
@keyframes blink{ 50%{ opacity: 0; } }

/* EEG trace */
.eeg{
  width: min(640px, 92vw);
  height: 120px;
  margin: 0 0 2rem;
  opacity: 0.9;
}
.hero__scroll{
  font-family: var(--micro);
  font-size: 1.1rem;
  letter-spacing: 0.14em;
  color: var(--faint);
  margin: 0;
}

/* ================= SECTIONS ================= */
.section{
  max-width: var(--max);
  margin: 0 auto;
  padding: 5.5rem var(--edge) 1.5rem;
  position: relative;
}
.section__head{
  display: flex; align-items: baseline; gap: 1rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.9rem;
}
.section__title{
  font-family: var(--display);
  font-size: clamp(1rem, 3.4vw, 1.4rem);
  margin: 0;
  color: var(--ink);
}
.section__tag{
  font-family: var(--micro);
  font-size: 1.15rem;
  letter-spacing: 0.12em;
  color: var(--magenta);
}
.section__body p{ margin: 0 0 1.2rem; color: rgba(242,242,242,0.88); }
.section__body a{ text-decoration-color: rgba(57,197,187,0.5); }

/* key terms — the page coding its own themes */
mark.key{
  background: transparent;
  color: var(--turq);
  /* highlighter sweep: background grows in when .in is added by script */
  background-image: linear-gradient(rgba(57,197,187,0.22), rgba(57,197,187,0.22));
  background-repeat: no-repeat;
  background-size: 0% 100%;
  background-position: 0 0;
  padding: 0 1px;
  transition: background-size 0.5s ease;
  transition-delay: var(--d, 0ms);
}
.js-on mark.key.in{ background-size: 100% 100%; }

/* ---- staggered reveal ----
   Fails open: the hidden state only exists when JS has run
   (html gets .js-on), so no-JS / JS-error still shows everything. */
.js-on .reveal{ opacity: 0; transform: translateY(14px); }
.js-on .reveal.in{
  opacity: 1; transform: none;
  transition: opacity 0.55s ease, transform 0.55s ease;
  transition-delay: var(--d, 0ms);
}

/* ---------- stats ---------- */
.stats{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 3rem;
}
.stat{
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--turq);
  border-radius: 4px;
  padding: 1.1rem 1rem;
  display: flex; flex-direction: column; gap: 0.35rem;
}
.stat__num{
  font-family: var(--micro);
  font-size: 2.6rem;
  line-height: 1;
  color: var(--turq);
}
.stat__label{ font-size: 0.8rem; color: var(--dim); line-height: 1.4; }

/* ---------- cv ---------- */
.cv-block{ margin-bottom: 2.75rem; }
.cv-block__title{
  font-family: var(--micro);
  font-size: 1.4rem;
  letter-spacing: 0.1em;
  color: var(--magenta);
  margin: 0 0 1rem;
}
.cv-list{ padding-left: 1.1rem; margin: 0; }
.cv-list li{ margin-bottom: 0.95rem; font-size: 0.94rem; color: rgba(242,242,242,0.88); }
.cv-list strong{ color: var(--ink); }

.cv-entry{
  margin-bottom: 2rem;
  padding: 1.1rem 1.1rem 1.1rem 1.2rem;
  background: rgba(11,15,14,0.6);
  border: 1px solid var(--line);
  border-left: 3px solid var(--magenta);
  border-radius: 4px;
}
.cv-entry__meta{
  display: flex; justify-content: space-between; gap: 0.5rem;
  font-family: var(--micro);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--dim);
  margin-bottom: 0.5rem;
}
.cv-entry__role{ font-weight: 600; margin: 0 0 0.25rem; }
.cv-entry__lab{ font-style: italic; font-size: 0.92rem; color: var(--dim); margin: 0 0 0.2rem; }
.cv-entry__mentor{ font-size: 0.85rem; color: var(--faint); margin: 0 0 0.7rem; }
.cv-entry p:last-child{ margin-bottom: 0; }
.cv-entry strong{ color: var(--turq); }

.skills-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.skills-col h4{
  font-family: var(--micro);
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  color: var(--turq);
  margin: 0 0 0.4rem;
  text-transform: uppercase;
}
.skills-col p{ margin: 0; font-size: 0.9rem; color: rgba(242,242,242,0.85); }
.skills-col strong{ color: var(--ink); }

/* ---------- work ---------- */
.work__note{
  font-family: var(--micro);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  color: var(--dim);
  border: 1px dashed var(--line);
  border-radius: 4px;
  padding: 1.5rem;
  text-align: center;
}

/* ---------- contact ---------- */
.contact__intro{
  font-family: var(--micro);
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--dim);
}
.contact__list{
  list-style: none; padding: 0; margin: 2rem 0 0;
  display: flex; flex-direction: column; gap: 1rem;
}
.contact__link{
  display: inline-flex; align-items: center; gap: 0.8rem;
  font-family: var(--micro);
  font-size: 1.35rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  width: fit-content;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
/* retro press state: the blinking square "lights up" on hover */
.blink{
  width: 10px; height: 10px; flex: none;
  background: var(--faint);
  transition: background 0.2s ease, box-shadow 0.2s ease;
}
.contact__link:hover{ color: var(--turq); border-color: var(--turq); }
.contact__link:hover .blink{
  background: var(--turq);
  box-shadow: 0 0 10px var(--turq);
}

.footer{
  text-align: center;
  padding: 3rem var(--edge) 4rem;
  font-family: var(--micro);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--faint);
}

/* ================= responsive ================= */
@media (max-width: 640px){
  .nav__links{ gap: 1rem; }
  .stats{ grid-template-columns: 1fr; }
  .skills-grid{ grid-template-columns: 1fr; }
  .cv-entry__meta{ flex-direction: column; gap: 0.1rem; }
}

/* ================= accessibility ================= */
a:focus-visible, button:focus-visible{
  outline: 2px solid var(--turq);
  outline-offset: 3px;
}

/* Reduced motion: every effect lands in its final state instantly.
   The script also checks this and skips animation loops. */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js-on .reveal{ opacity: 1; transform: none; }
  .js-on mark.key.in{ background-size: 100% 100%; }
}