/* =========================================================================
   main.css — "INSTRUMENT" design system.
   One file, all tokens. A research instrument, not a résumé.
   Identity: Swiss-precise editorial typography on a dark coordinate plane,
   with a single luminous signal accent (phosphor chartreuse) used sparingly —
   the colour of a converging loss curve / a firing activation.
   Dark is the default; light = warm paper + ink. Theme is switchable.
   ========================================================================= */

/* ------------------------------ tokens: dark (default) ------------------- */
:root {
  --bg:         #0a0b0d;
  --bg-2:       #0e1014;
  --surface:    #14171c;
  --surface-2:  #1a1e25;
  --ink:        #eaecef;
  --ink-soft:   #9ba3ad;
  --ink-faint:  #5e6772;
  --line:       rgba(255,255,255,0.085);
  --line-2:     rgba(255,255,255,0.16);
  --accent:     #c6f24e;   /* phosphor chartreuse — signal */
  --accent-ink: #cdf45f;   /* readable accent text on dark */
  --accent-dim: rgba(198,242,78,0.13);
  --warm:       #f2b765;   /* in-progress / amber */
  --warm-ink:   #f4c27e;
  --warm-dim:   rgba(242,183,101,0.13);
  --dot:        rgba(255,255,255,0.04);
  --dot-major:  rgba(255,255,255,0.07);
  --glow:       rgba(198,242,78,0.07);
  --on-accent:  #0a0b0d;   /* text/icon sitting on a filled accent surface */
  --shadow:     0 1px 1px rgba(0,0,0,.5), 0 14px 38px -16px rgba(0,0,0,.78);
  --shadow-lift:0 2px 4px rgba(0,0,0,.55), 0 28px 60px -22px rgba(0,0,0,.9);

  /* type */
  --font-display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-body: "Hanken Grotesk", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --fs-hero:  clamp(3rem, 1.8rem + 6vw, 6.5rem);
  --fs-h1:    clamp(2.4rem, 1.7rem + 3.4vw, 4.2rem);
  --fs-h2:    clamp(1.7rem, 1.3rem + 1.8vw, 2.7rem);
  --fs-h3:    clamp(1.3rem, 1.1rem + 0.7vw, 1.6rem);
  --fs-body:  clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  --fs-sm:    0.86rem;
  --fs-xs:    0.74rem;
  --tracked:  0.18em;   /* mono label letter-spacing */

  /* space / radius */
  --sp-1: 0.25rem; --sp-2: 0.5rem; --sp-3: 0.75rem; --sp-4: 1rem;
  --sp-5: 1.5rem; --sp-6: 2rem; --sp-7: 3.25rem; --sp-8: 5rem;
  --r-sm: 3px; --r-md: 7px; --r-lg: 12px; --r-pill: 999px;
  --maxw: 1180px;
  --ease: cubic-bezier(.2,.7,.2,1);
}

/* ------------------------------ tokens: light (paper) -------------------- */
:root[data-theme="light"] {
  --bg:         #f4f1e8;
  --bg-2:       #efebdf;
  --surface:    #fcfbf6;
  --surface-2:  #f1ede2;
  --ink:        #15171a;
  --ink-soft:   #4b535c;
  --ink-faint:  #8b9088;
  --line:       rgba(20,23,26,0.11);
  --line-2:     rgba(20,23,26,0.2);
  --accent:     #3f6b00;   /* deep moss-lime — AA on paper */
  --accent-ink: #355c00;
  --accent-dim: rgba(63,107,0,0.1);
  --warm:       #9a5a14;
  --warm-ink:   #8a5012;
  --warm-dim:   rgba(154,90,20,0.1);
  --dot:        rgba(20,23,26,0.045);
  --dot-major:  rgba(20,23,26,0.075);
  --glow:       rgba(63,107,0,0.05);
  --on-accent:  #f4f1e8;
  --shadow:     0 1px 2px rgba(20,23,26,.05), 0 12px 30px -16px rgba(20,23,26,.22);
  --shadow-lift:0 2px 6px rgba(20,23,26,.08), 0 22px 48px -20px rgba(20,23,26,.3);
}

/* No-JS fallback: honour the OS preference if the theme script didn't run. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: #f4f1e8; --bg-2: #efebdf; --surface: #fcfbf6; --surface-2: #f1ede2;
    --ink: #15171a; --ink-soft: #4b535c; --ink-faint: #8b9088;
    --line: rgba(20,23,26,0.11); --line-2: rgba(20,23,26,0.2);
    --accent: #3f6b00; --accent-ink: #355c00; --accent-dim: rgba(63,107,0,0.1);
    --warm: #9a5a14; --warm-ink: #8a5012; --warm-dim: rgba(154,90,20,0.1);
    --dot: rgba(20,23,26,0.045); --dot-major: rgba(20,23,26,0.075);
    --glow: rgba(63,107,0,0.05); --on-accent: #f4f1e8;
  }
}

/* --------------------------------- base --------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.62;
  color: var(--ink);
  background-color: var(--bg);
  /* the coordinate plane: a fine dot grid + a soft signal glow up top */
  background-image:
    radial-gradient(var(--glow), transparent 60%),
    radial-gradient(var(--dot-major) 1.2px, transparent 1.3px),
    radial-gradient(var(--dot) 1px, transparent 1.1px);
  background-size: 1100px 700px, 132px 132px, 33px 33px;
  background-position: 75% -180px, 0 0, 0 0;
  background-repeat: no-repeat, repeat, repeat;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 400; line-height: 1.02; letter-spacing: 0; margin: 0; }
p { margin: 0; }
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.mono { font-family: var(--font-mono); font-feature-settings: "ss02"; }
strong, b { font-weight: 600; }

img { max-width: 100%; display: block; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.skip-link {
  position: absolute; left: -999px; top: var(--sp-2);
  background: var(--accent); color: var(--on-accent); padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-md); z-index: 100; font-weight: 600;
}
.skip-link:focus { left: var(--sp-4); }

main { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--sp-5) var(--sp-8); }

/* a hairline rule used between sections */
.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ------------------------------- header --------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(1.3) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: var(--sp-3); padding: var(--sp-3) var(--sp-5);
}
.nav__brand { color: var(--ink); font-weight: 600; font-size: 0.98rem; display: inline-flex; align-items: center; gap: var(--sp-2); letter-spacing: -0.01em; }
.nav__brand:hover { text-decoration: none; }
.nav__sigil { color: var(--accent-ink); font-size: 1.2rem; line-height: 1; }
.nav__right { display: flex; align-items: center; gap: var(--sp-2); }
.nav__links { list-style: none; display: flex; flex-wrap: wrap; gap: 2px; margin: 0; padding: 0; }
.nav__links a {
  display: inline-block; padding: var(--sp-2) var(--sp-3); color: var(--ink-soft);
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .02em;
  border-radius: var(--r-md); transition: color .15s var(--ease), background .15s var(--ease);
}
.nav__links a:hover { color: var(--ink); background: var(--surface-2); text-decoration: none; }
.nav__links a[aria-current="page"] { color: var(--accent-ink); }
.nav__links a[aria-current="page"]::before { content: "▸ "; color: var(--accent); }

.theme-toggle {
  display: inline-grid; place-items: center; width: 34px; height: 34px;
  border: 1px solid var(--line-2); border-radius: var(--r-md);
  background: var(--surface); color: var(--ink-soft); cursor: pointer;
  transition: color .15s var(--ease), border-color .15s var(--ease), background .15s var(--ease);
}
.theme-toggle:hover { color: var(--ink); border-color: var(--accent); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* --------------------------------- hero --------------------------------- */
.hero { position: relative; padding: var(--sp-8) 0 var(--sp-7); }
.hero__eyebrow, .page-head__eyebrow {
  color: var(--accent-ink); font-family: var(--font-mono); font-size: var(--fs-xs);
  letter-spacing: var(--tracked); text-transform: uppercase; margin-bottom: var(--sp-5);
}
.hero__title { font-size: var(--fs-hero); margin-bottom: var(--sp-5); max-width: 18ch; letter-spacing: -0.005em; }
.hero__title em { font-style: italic; color: var(--accent-ink); }
.hero__lead { font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem); color: var(--ink-soft); max-width: 46ch; margin-bottom: var(--sp-6); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-bottom: var(--sp-7); }

/* readout strip: mono stats separated by vertical rules */
.hero__readout, .hero__stat {
  display: flex; flex-wrap: wrap; gap: var(--sp-4) var(--sp-5);
  font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--ink-faint);
  letter-spacing: .04em; border-top: 1px solid var(--line); padding-top: var(--sp-4);
}
.hero__readout b { color: var(--accent-ink); font-weight: 500; }
.readout-item { display: inline-flex; align-items: baseline; gap: var(--sp-2); }

/* the decorative loss-trace that draws itself across the hero */
.hero__trace {
  position: absolute; right: -3%; top: 50%; transform: translateY(-50%);
  width: min(46%, 560px); height: auto; pointer-events: none; opacity: .9; z-index: -1;
}
.hero__trace .trace-line {
  fill: none; stroke: var(--accent); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: draw 2.6s var(--ease) .25s forwards;
}
.hero__trace .trace-axis { stroke: var(--line-2); stroke-width: 1; }
.hero__trace .trace-dot { fill: var(--accent); }
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (max-width: 860px) { .hero__trace { display: none; } }

/* -------------------------------- buttons ------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 0.7rem 1.2rem; border-radius: var(--r-md);
  font-family: var(--font-mono); font-size: var(--fs-sm); font-weight: 500; letter-spacing: .01em;
  border: 1px solid var(--line-2); background: var(--surface); color: var(--ink);
  cursor: pointer; transition: transform .14s var(--ease), box-shadow .16s var(--ease), background .16s var(--ease), border-color .16s, color .16s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--line-2); }
.btn:active { transform: translateY(0); }
.btn--accent { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-weight: 600; }
.btn--accent:hover { background: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 12px 30px -10px var(--glow), var(--shadow); filter: brightness(1.05); }
.btn--ghost { background: transparent; }
.btn--ghost:hover { background: var(--surface-2); border-color: var(--accent); color: var(--ink); }

/* ------------------------------- sections ------------------------------- */
.section { padding: var(--sp-7) 0; border-top: 1px solid var(--line); }
.section__head { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: var(--sp-3); margin-bottom: var(--sp-6); }
.section__headline { display: flex; align-items: baseline; gap: var(--sp-4); flex-wrap: wrap; }
.section__idx { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--accent-ink); }
.section__title { font-size: var(--fs-h2); }
.section__tag { color: var(--ink-faint); font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .04em; }
.section__more { margin-top: var(--sp-6); font-family: var(--font-mono); font-size: var(--fs-sm); }
.section__more a { color: var(--accent-ink); }

.page-head { padding: var(--sp-8) 0 var(--sp-6); }
.page-head__title { font-size: var(--fs-h1); margin: var(--sp-4) 0 var(--sp-4); }
.page-head__lead { color: var(--ink-soft); max-width: 56ch; font-size: 1.1rem; }

/* ------------------------------ focus list ------------------------------ */
.focus { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.focus__item {
  display: grid; grid-template-columns: 3rem 1fr; gap: var(--sp-4); align-items: start;
  color: var(--ink-soft); padding: var(--sp-4) 0; border-top: 1px dashed var(--line);
}
.focus__item:first-child { border-top: 0; }
.focus__idx { color: var(--accent-ink); font-family: var(--font-mono); font-size: var(--fs-sm); padding-top: .2rem; }

/* ---------------------------- project cards ----------------------------- */
.card-grid { display: grid; grid-template-columns: 1fr; gap: var(--sp-5); }
@media (min-width: 720px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }

.card {
  display: flex; flex-direction: column; position: relative;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow);
  transition: transform .18s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: var(--line-2); }
.card:hover .card__media-label { color: var(--accent-ink); border-color: var(--accent); }
.card.is-open { box-shadow: var(--shadow-lift); border-color: var(--line-2); }

.card__media {
  position: relative; aspect-ratio: 16 / 8; background: var(--bg-2);
  border-bottom: 1px solid var(--line); overflow: hidden; display: flex;
  align-items: flex-end; padding: var(--sp-3);
  background-image: radial-gradient(var(--dot) 1px, transparent 1.1px); background-size: 22px 22px;
}
.card__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.card__media-label {
  position: absolute; top: var(--sp-3); left: var(--sp-3); z-index: 2;
  font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .04em; color: var(--ink-soft);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  padding: 3px 9px; border-radius: var(--r-pill); border: 1px solid var(--line-2);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.spark-wrap { position: relative; z-index: 1; width: 100%; }
.spark { width: 62%; max-width: 160px; height: auto; opacity: .92; }

.card__body { padding: var(--sp-5) var(--sp-5) var(--sp-5); display: flex; flex-direction: column; gap: var(--sp-3); flex: 1; }
.card__meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); }
.card__date { color: var(--ink-faint); font-family: var(--font-mono); font-size: var(--fs-xs); margin-left: auto; }
.card__title { font-size: var(--fs-h3); line-height: 1.08; margin-top: var(--sp-1); }
.card__summary { color: var(--ink-soft); font-size: 0.97rem; }

.chip { font-family: var(--font-mono); font-size: var(--fs-xs); padding: 3px 9px; border-radius: var(--r-pill); border: 1px solid var(--line-2); color: var(--ink-soft); white-space: nowrap; letter-spacing: .02em; }
.chip--cat { color: var(--accent-ink); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); background: var(--accent-dim); }
.chip--done { color: var(--accent-ink); }
.chip--done::before { content: "● "; font-size: .7em; vertical-align: middle; }
.chip--progress { color: var(--warm-ink); border-color: color-mix(in srgb, var(--warm) 45%, var(--line)); background: var(--warm-dim); }
.chip--progress::before { content: "◐ "; font-size: .8em; vertical-align: middle; }

.card__stack, .skillgroup__list, .lab__tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.tag { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--ink-soft); background: var(--surface-2); border: 1px solid var(--line); padding: 2px 8px; border-radius: var(--r-sm); }

.card__toggle {
  margin-top: auto; align-self: flex-start; display: inline-flex; align-items: center; gap: var(--sp-2);
  background: none; border: none; padding: var(--sp-3) 0 0; cursor: pointer;
  color: var(--accent-ink); font-family: var(--font-mono); font-size: var(--fs-sm);
}
.card__toggle:hover { color: var(--accent); }
.card__chevron { display: inline-block; transition: transform .2s var(--ease); }
.card.is-open .card__chevron, .lab__row.is-open .card__chevron { transform: rotate(90deg); }

.detail {
  margin-top: var(--sp-3); padding-top: var(--sp-4); border-top: 1px dashed var(--line-2);
  display: grid; gap: var(--sp-4); animation: unfold .24s var(--ease);
}
@keyframes unfold { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
.detail__label { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--ink-faint); letter-spacing: var(--tracked); text-transform: uppercase; display: block; margin-bottom: var(--sp-2); }
.detail__q { font-family: var(--font-display); font-style: italic; font-size: 1.3rem; line-height: 1.25; color: var(--ink); }
.detail__list { margin: 0; padding-left: 1.1rem; display: grid; gap: var(--sp-2); color: var(--ink-soft); font-size: 0.95rem; }
.detail__results .detail__list { list-style: none; padding-left: 0; }
.detail__results .detail__list li { color: var(--ink); padding-left: 1.3rem; position: relative; }
.detail__results .detail__list li::before { content: "▸"; position: absolute; left: 0; color: var(--accent); }
.card__links, .contact { display: flex; flex-wrap: wrap; gap: var(--sp-4); }
.card__link { font-family: var(--font-mono); font-size: var(--fs-sm); }

/* -------------------------------- filters ------------------------------- */
.filters { display: flex; flex-wrap: wrap; gap: var(--sp-5); align-items: flex-end; padding: var(--sp-5) 0; border-bottom: 1px solid var(--line); }
.filters__group { display: flex; flex-direction: column; gap: var(--sp-2); }
.filters__group--search { flex: 1; min-width: 200px; }
.filters__label { color: var(--ink-faint); font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: var(--tracked); text-transform: uppercase; }
.pillbar { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.pill {
  font-family: var(--font-mono); font-size: var(--fs-xs); padding: 6px 12px;
  border-radius: var(--r-pill); border: 1px solid var(--line-2);
  background: var(--surface); color: var(--ink-soft); cursor: pointer; letter-spacing: .02em;
  transition: background .15s var(--ease), color .15s, border-color .15s;
}
.pill:hover { color: var(--ink); border-color: var(--accent); }
.pill.is-active { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-weight: 600; }
.search {
  font-family: var(--font-mono); font-size: var(--fs-sm); padding: 0.6rem 0.85rem;
  border: 1px solid var(--line-2); border-radius: var(--r-md);
  background: var(--surface); color: var(--ink); width: 100%;
}
.search::placeholder { color: var(--ink-faint); }

.count { color: var(--ink-faint); font-family: var(--font-mono); font-size: var(--fs-sm); padding: var(--sp-5) 0; }
.empty { text-align: center; padding: var(--sp-8) var(--sp-4); color: var(--ink-soft); display: grid; gap: var(--sp-4); justify-items: center; }

/* ---------------------------------- lab --------------------------------- */
.statstrip { display: flex; flex-wrap: wrap; gap: var(--sp-7); padding: var(--sp-6) 0; border-bottom: 1px solid var(--line); }
.stat { display: flex; flex-direction: column; gap: var(--sp-1); }
.stat__value { font-family: var(--font-display); font-size: 2.4rem; color: var(--accent-ink); line-height: 1; }
.stat__label { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--ink-faint); text-transform: uppercase; letter-spacing: .08em; }

.tagbar { padding: var(--sp-4) 0; min-height: 1.5rem; }
.lab__hint { color: var(--ink-faint); font-family: var(--font-mono); font-size: var(--fs-xs); }
.lab__activetag { display: inline-flex; align-items: center; gap: var(--sp-2); background: var(--accent-dim); color: var(--accent-ink); padding: 4px 6px 4px 12px; border-radius: var(--r-pill); border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--line)); font-size: var(--fs-sm); }
.lab__clear { background: none; border: none; cursor: pointer; color: var(--accent-ink); font-size: 1.1rem; line-height: 1; padding: 0 6px; border-radius: var(--r-pill); }
.lab__clear:hover { background: color-mix(in srgb, var(--accent) 22%, transparent); }

.lab__month { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--ink-faint); text-transform: uppercase; letter-spacing: var(--tracked); margin: var(--sp-7) 0 var(--sp-3); }
.lab-list { list-style: none; margin: 0 0 var(--sp-4); padding: 0; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: var(--surface); }
.lab__row { border-bottom: 1px solid var(--line); }
.lab__row:last-child { border-bottom: none; }
.lab__row.is-open { background: var(--surface-2); }
.lab__toggle {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap;
  padding: var(--sp-4) var(--sp-5); color: var(--ink); font-family: var(--font-body); font-size: 0.99rem;
  transition: background .14s var(--ease); position: relative;
}
.lab__toggle::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: transparent; transition: background .15s var(--ease); }
.lab__toggle:hover { background: var(--surface-2); }
.lab__row.is-open .lab__toggle::before { background: var(--accent); }
.lab__date { color: var(--accent-ink); font-family: var(--font-mono); font-size: var(--fs-xs); flex-shrink: 0; min-width: 7rem; }
.lab__title { font-weight: 500; flex: 1; min-width: 12rem; }
.lab__tags { margin-left: auto; }
.lab__tags .tag { cursor: pointer; }
.lab__tags .tag:hover { border-color: var(--accent); color: var(--accent-ink); }
.lab__row .card__chevron { color: var(--ink-faint); }
.lab__detail { padding: 0 var(--sp-5) var(--sp-5) calc(7rem + var(--sp-5) + var(--sp-3)); display: grid; gap: var(--sp-3); color: var(--ink-soft); animation: unfold .2s var(--ease); }
.lab__detail .detail__label { display: inline; text-transform: none; letter-spacing: 0; color: var(--accent-ink); }
.lab__q { color: var(--ink); }
.lab__learned { color: var(--ink-soft); font-style: italic; }
@media (max-width: 640px) { .lab__detail { padding-left: var(--sp-5); } .lab__tags { margin-left: 0; width: 100%; } }
.lab-list--compact { background: var(--surface); }

/* --------------------------------- about -------------------------------- */
.about { max-width: 820px; }
.about__head { padding: var(--sp-8) 0 var(--sp-6); border-bottom: 1px solid var(--line); }
.about__name { font-size: var(--fs-h1); }
.about__role { color: var(--accent-ink); font-family: var(--font-mono); font-size: var(--fs-sm); margin: var(--sp-4) 0; letter-spacing: .02em; }
.about__tagline { color: var(--ink-soft); font-size: 1.2rem; max-width: 52ch; }
.about__section { padding: var(--sp-7) 0; border-bottom: 1px solid var(--line); }
.about__bio { color: var(--ink-soft); font-size: 1.1rem; max-width: 62ch; }
.skills { display: grid; gap: var(--sp-5); }
.skillgroup__title { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--ink-faint); text-transform: uppercase; letter-spacing: var(--tracked); margin-bottom: var(--sp-3); }
.principles { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.principle { display: grid; grid-template-columns: 2.8rem 1fr; gap: var(--sp-3); align-items: baseline; color: var(--ink-soft); padding: var(--sp-4) 0; border-top: 1px dashed var(--line); }
.principle:first-child { border-top: 0; }
.principle__num { color: var(--accent); font-family: var(--font-mono); font-size: var(--fs-sm); }

/* timeline (experience / education) */
.xp-list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-6); }
.xp-list--tight { gap: var(--sp-5); }
.xp { border-left: 2px solid var(--line-2); padding-left: var(--sp-5); position: relative; }
.xp::before { content: ""; position: absolute; left: -6px; top: 7px; width: 9px; height: 9px; border-radius: var(--r-pill); background: var(--accent); box-shadow: 0 0 0 4px var(--bg); }
.xp__head { display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-4); align-items: baseline; justify-content: space-between; }
.xp__role { font-weight: 600; color: var(--ink); font-size: 1.05rem; }
.xp__period { color: var(--ink-faint); font-family: var(--font-mono); font-size: var(--fs-xs); white-space: nowrap; }
.xp__org { color: var(--accent-ink); font-family: var(--font-mono); font-size: var(--fs-sm); margin-top: 3px; }
.xp__summary { color: var(--ink-soft); font-size: 0.96rem; margin-top: var(--sp-3); max-width: 64ch; }
.edu { border-left: 2px solid var(--line-2); padding-left: var(--sp-5); position: relative; }
.edu::before { content: ""; position: absolute; left: -6px; top: 7px; width: 9px; height: 9px; border-radius: var(--r-pill); background: var(--ink-faint); box-shadow: 0 0 0 4px var(--bg); }
.awards { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-3); }
.award { display: grid; grid-template-columns: 1.6rem 1fr; gap: var(--sp-2); align-items: baseline; color: var(--ink-soft); max-width: 62ch; }
.award__mark { color: var(--warm-ink); }

/* -------------------------------- notice -------------------------------- */
.notice { background: var(--surface); border: 1px solid var(--line-2); border-left: 3px solid var(--warm); border-radius: var(--r-md); padding: var(--sp-5); margin: var(--sp-5) 0; display: grid; gap: var(--sp-3); max-width: 60ch; }
.notice--error { border-left-color: var(--warm); }
.notice__title { font-weight: 600; font-family: var(--font-display); font-size: 1.4rem; }
.notice__body { color: var(--ink-soft); font-size: var(--fs-sm); }
.notice__meta { color: var(--ink-faint); font-family: var(--font-mono); font-size: var(--fs-xs); word-break: break-word; }

/* -------------------------------- footer -------------------------------- */
.site-footer { max-width: var(--maxw); margin: 0 auto; padding: var(--sp-6) var(--sp-5) var(--sp-7); border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-4); justify-content: space-between; }
.footer__name { color: var(--ink); font-family: var(--font-mono); font-size: var(--fs-sm); }
.footer__links { display: flex; flex-wrap: wrap; gap: var(--sp-4); }
.footer__link { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--ink-soft); }
.footer__link:hover { color: var(--accent-ink); }
.footer__fine { color: var(--ink-faint); font-family: var(--font-mono); font-size: var(--fs-xs); width: 100%; letter-spacing: .02em; }

/* ------------------- forms (shared with admin dashboard) ---------------- */
.field { display: flex; flex-direction: column; gap: var(--sp-2); margin-bottom: var(--sp-4); }
.field > label { font-size: var(--fs-sm); font-weight: 600; color: var(--ink); }
.field .hint { font-size: var(--fs-xs); color: var(--ink-faint); }
input[type=text], input[type=date], input[type=url], input[type=email], input[type=search], select, textarea {
  font-family: var(--font-body); font-size: var(--fs-sm); padding: 0.6rem 0.8rem;
  border: 1px solid var(--line-2); border-radius: var(--r-md);
  background: var(--surface); color: var(--ink); width: 100%;
}
textarea { resize: vertical; min-height: 4rem; }
input:focus-visible, select:focus-visible, textarea:focus-visible { border-color: var(--accent); outline-offset: 0; }
.field.invalid input, .field.invalid textarea, .field.invalid select { border-color: var(--warm); }
.field .error { color: var(--warm-ink); font-size: var(--fs-xs); }

/* --------------------------------- print -------------------------------- */
@media print {
  body { background: #fff; color: #000; background-image: none; }
  .site-header, .site-footer, .skip-link, .hero__actions, .about__contact, .hero__trace, .theme-toggle { display: none !important; }
  main { max-width: 100%; padding: 0; }
  .about__section { border-color: #ccc; page-break-inside: avoid; }
  .tag, .chip { border-color: #999; color: #000; background: none; }
  a { color: #000; }
}

/* ----------------------------- reduced motion --------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .hero__trace .trace-line { stroke-dashoffset: 0; }
}