/* ==========================================================
   Hovhannes Mkrtumyan — Portfolio
   Theme: matrix / PCB / RF hardware — electric green on black
   ========================================================== */
:root {
  --bg: #010503;
  --bg2: #03100a;
  --panel: rgba(4, 22, 13, .72);
  --panel-solid: #04160d;
  --line: rgba(0, 255, 102, .16);
  --line-strong: rgba(0, 255, 102, .45);
  --g: #00ff66;
  --g-soft: #3dff8b;
  --g-dim: #0c7a3c;
  --g-deep: #063d1f;
  --text: #d3ffe2;
  --muted: #7fb894;
  --faint: #4b7a5d;
  --copper: #e0b354;
  --copper-dim: rgba(224, 179, 84, .35);
  --danger: #ff4d6d;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --sans: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --glow: 0 0 6px rgba(0, 255, 102, .7), 0 0 22px rgba(0, 255, 102, .35);
  --radius: 4px;
  --maxw: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--g); text-decoration: none; }
a:hover { text-shadow: var(--glow); }
::selection { background: var(--g); color: #000; }
img, svg, canvas { display: block; }

/* scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: var(--g-deep); border: 1px solid var(--g-dim); }

/* ---------- background layers ---------- */
#matrix {
  position: fixed; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  opacity: .22;
  pointer-events: none;
}
#pcb-bg {
  position: fixed; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  opacity: .55;
}
.scanlines {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: repeating-linear-gradient(to bottom, rgba(0,0,0,0) 0, rgba(0,0,0,0) 2px, rgba(0,0,0,.18) 3px);
  mix-blend-mode: multiply;
}
.vignette {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0) 45%, rgba(0,0,0,.75) 100%);
}
main, header.nav, footer { position: relative; z-index: 2; }

/* ---------- boot screen ---------- */
#boot {
  position: fixed; inset: 0; z-index: 100;
  background: #000;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--g);
  padding: 28px clamp(16px, 4vw, 48px);
  overflow: hidden;
  transition: opacity .6s ease, visibility .6s;
  cursor: pointer;
}
#boot.done { opacity: 0; visibility: hidden; }
#boot .line { white-space: pre-wrap; text-shadow: 0 0 4px rgba(0,255,102,.6); }
#boot .ok { color: #000; background: var(--g); padding: 0 4px; }
#boot .skip { position: absolute; right: 20px; bottom: 16px; color: var(--faint); font-size: 12px; }
.cursor::after { content: "█"; animation: blink 1s steps(1) infinite; margin-left: 2px; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- nav ---------- */
header.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  backdrop-filter: blur(8px);
  background: rgba(1, 6, 3, .78);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; gap: 16px;
}
.brand { font-family: var(--mono); font-weight: 700; color: var(--g); letter-spacing: .5px; white-space: nowrap; }
.brand span { color: var(--muted); font-weight: 400; }
.nav-links { display: flex; gap: 4px; font-family: var(--mono); font-size: 13px; }
.nav-links a {
  color: var(--muted); padding: 6px 10px; border: 1px solid transparent; border-radius: var(--radius);
  transition: all .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--g); border-color: var(--line-strong); text-shadow: var(--glow); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line-strong); color: var(--g); font-family: var(--mono); padding: 6px 10px; cursor: pointer; }

/* ---------- layout ---------- */
section { padding: 110px 20px 70px; position: relative; }
.wrap { max-width: var(--maxw); margin: 0 auto; }
.sec-head { margin-bottom: 44px; }
.sec-tag {
  font-family: var(--mono); font-size: 13px; color: var(--g);
  display: inline-flex; align-items: center; gap: 10px; letter-spacing: 1px;
}
.sec-tag::before { content: ""; width: 34px; height: 1px; background: var(--g); box-shadow: var(--glow); }
.sec-title {
  font-size: clamp(30px, 4.6vw, 52px); line-height: 1.08; font-weight: 700;
  margin-top: 10px; letter-spacing: -.5px;
}
.sec-title em { font-style: normal; color: var(--g); text-shadow: var(--glow); }
.sec-lead { color: var(--muted); max-width: 72ch; margin-top: 14px; font-size: 17px; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- hero ---------- */
#hero { min-height: 100vh; display: flex; align-items: center; padding-top: 90px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }
.hero-pre { font-family: var(--mono); color: var(--g); font-size: 14px; }
.hero-name {
  font-size: clamp(42px, 7.4vw, 92px); line-height: .98; font-weight: 700;
  letter-spacing: -2px; margin: 14px 0 8px; position: relative;
}
.glitch { position: relative; display: inline-block; }
.glitch::before, .glitch::after {
  content: attr(data-text); position: absolute; left: 0; top: 0; width: 100%; overflow: hidden;
}
.glitch::before { color: var(--g); transform: translate(-2px, 0); clip-path: inset(0 0 65% 0); animation: glitch1 4.2s infinite steps(1); opacity: .8; }
.glitch::after { color: #00d5ff; transform: translate(2px, 0); clip-path: inset(60% 0 0 0); animation: glitch2 3.7s infinite steps(1); opacity: .5; }
@keyframes glitch1 { 0%,92%,100% { transform: none; clip-path: inset(0 0 100% 0); } 93% { transform: translate(-4px,1px); clip-path: inset(10% 0 55% 0); } 95% { transform: translate(3px,-1px); clip-path: inset(40% 0 30% 0); } 97% { transform: translate(-2px,0); clip-path: inset(70% 0 5% 0); } }
@keyframes glitch2 { 0%,88%,100% { transform: none; clip-path: inset(100% 0 0 0); } 89% { transform: translate(4px,0); clip-path: inset(55% 0 20% 0); } 91% { transform: translate(-3px,1px); clip-path: inset(15% 0 60% 0); } }
.hero-name .last { color: var(--g); text-shadow: var(--glow); }
.hero-role { font-family: var(--mono); font-size: clamp(16px, 2.2vw, 22px); color: var(--text); min-height: 1.6em; }
.hero-role .prompt { color: var(--g); }
.hero-desc { color: var(--muted); max-width: 58ch; margin-top: 20px; font-size: 17px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn {
  font-family: var(--mono); font-size: 14px; padding: 12px 20px;
  border: 1px solid var(--g); color: var(--g); background: rgba(0,255,102,.04);
  border-radius: var(--radius); position: relative; overflow: hidden; transition: all .25s; display: inline-flex; gap: 8px; align-items: center;
}
.btn:hover { background: var(--g); color: #000; box-shadow: var(--glow); text-shadow: none; }
.btn.ghost { border-color: var(--line-strong); color: var(--text); }
.btn.ghost:hover { background: rgba(0,255,102,.1); color: var(--g); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 44px; max-width: 620px; }
.stat { border: 1px solid var(--line); background: var(--panel); padding: 12px 14px; border-radius: var(--radius); }
.stat b { display: block; font-family: var(--mono); font-size: 26px; color: var(--g); text-shadow: var(--glow); line-height: 1.1; }
.stat span { font-size: 12px; color: var(--muted); font-family: var(--mono); }

/* chip visual */
.chip-stage { position: relative; aspect-ratio: 1; width: 100%; max-width: 480px; margin-left: auto; }
.chip-stage svg { width: 100%; height: 100%; overflow: visible; }
.chip-body { fill: #050d08; stroke: var(--g-dim); stroke-width: 1.5; }
.chip-die { fill: url(#dieGrad); stroke: var(--g); stroke-width: .8; }
.chip-label { font-family: var(--mono); fill: var(--g); font-size: 13px; letter-spacing: 1px; }
.chip-sub { font-family: var(--mono); fill: var(--muted); font-size: 8px; letter-spacing: 1px; }
.pin { fill: var(--copper); opacity: .85; }
.trace { fill: none; stroke: var(--g-deep); stroke-width: 2; }
.trace-glow { fill: none; stroke: var(--g); stroke-width: 2; stroke-linecap: round; stroke-dasharray: 14 400; filter: drop-shadow(0 0 4px var(--g)); animation: flow 3.2s linear infinite; }
.via { fill: #000; stroke: var(--copper); stroke-width: 1.6; }
@keyframes flow { from { stroke-dashoffset: 414; } to { stroke-dashoffset: 0; } }
.chip-pulse { animation: chipPulse 2.4s ease-in-out infinite; transform-origin: center; }
@keyframes chipPulse { 0%,100% { opacity: .35; } 50% { opacity: 1; } }

/* ---------- panels / cards ---------- */
.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  position: relative; backdrop-filter: blur(3px);
}
.panel.corners::before, .panel.corners::after {
  content: ""; position: absolute; width: 14px; height: 14px; border: 2px solid var(--g); pointer-events: none;
}
.panel.corners::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.panel.corners::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; }
.about-text { padding: 28px; }
.about-text p { color: var(--text); margin-bottom: 14px; }
.about-text p.muted { color: var(--muted); }
.term { font-family: var(--mono); font-size: 13.5px; padding: 0; overflow: hidden; }
.term-bar { display: flex; gap: 6px; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--line); color: var(--faint); font-size: 12px; }
.term-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--g-deep); border: 1px solid var(--g-dim); }
.term-bar span { margin-left: 8px; }
.term-body { padding: 16px 18px; line-height: 1.75; }
.term-body .k { color: var(--g); }
.term-body .s { color: var(--copper); }
.term-body .c { color: var(--faint); }

/* ---------- science ---------- */
#science { background: linear-gradient(180deg, transparent, rgba(0, 40, 20, .25) 20%, rgba(0, 40, 20, .25) 80%, transparent); }
.sci-banner { position: relative; height: 120px; margin: -10px 0 34px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: rgba(0,0,0,.5); }
.sci-banner canvas { width: 100%; height: 100%; }
.sci-banner .lbl { position: absolute; left: 12px; top: 8px; font-family: var(--mono); font-size: 11px; color: var(--muted); }
.sci-banner .lbl b { color: var(--g); font-weight: 400; }
.sci-themes { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.theory-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.theory {
  padding: 24px 24px 20px; transition: border-color .3s, transform .3s, box-shadow .3s;
  display: flex; flex-direction: column;
}
.theory:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: 0 10px 40px -12px rgba(0,255,102,.35); }
.theory .idx { font-family: var(--mono); font-size: 12px; color: var(--faint); display: flex; justify-content: space-between; gap: 10px; }
.theory .field { color: var(--g); }
.theory h3 { font-size: 22px; line-height: 1.25; margin: 10px 0 10px; }
.theory p { color: var(--muted); font-size: 15px; }
.theory .eq {
  margin: 16px 0 12px; padding: 14px 12px; border-left: 2px solid var(--g);
  background: rgba(0, 255, 102, .04); overflow-x: auto; color: var(--text); font-size: 15px;
}
.theory .eq .katex { color: #eafff1; }
.theory .eq-note { font-family: var(--mono); font-size: 11px; color: var(--faint); margin-top: -6px; margin-bottom: 8px; }
.theory ul { list-style: none; margin-top: 10px; }
.theory li { position: relative; padding-left: 18px; color: var(--muted); font-size: 14px; margin: 5px 0; }
.theory li::before { content: "▸"; position: absolute; left: 0; color: var(--g); }
.theory .more { display: none; }
.theory.open .more { display: block; }
.theory .toggle {
  margin-top: 14px; align-self: flex-start; background: none; border: 0; color: var(--g);
  font-family: var(--mono); font-size: 13px; cursor: pointer; padding: 0;
}
.theory .toggle:hover { text-shadow: var(--glow); }
.theory.featured { grid-column: 1 / -1; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.tag {
  font-family: var(--mono); font-size: 11.5px; color: var(--g-soft);
  border: 1px solid var(--line); padding: 2px 8px; border-radius: 2px; background: rgba(0,255,102,.04);
}
.tag.copper { color: var(--copper); border-color: var(--copper-dim); background: rgba(224,179,84,.05); }
.status { font-family: var(--mono); font-size: 11px; padding: 1px 7px; border: 1px solid var(--copper-dim); color: var(--copper); border-radius: 2px; white-space: nowrap; }

/* ---------- RF / SDR ---------- */
.rf-top { display: grid; grid-template-columns: 1.25fr .75fr; gap: 20px; }
.analyzer { padding: 0; overflow: hidden; }
.analyzer-head { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px; font-family: var(--mono); font-size: 11.5px; color: var(--muted); padding: 10px 14px; border-bottom: 1px solid var(--line); }
.analyzer-head b { color: var(--g); font-weight: 400; }
.analyzer-head .rec { color: var(--danger); }
.analyzer-head .rec::before { content: "●"; margin-right: 4px; animation: blink 1.2s steps(1) infinite; }
#spectrum { width: 100%; height: 190px; }
#waterfall { width: 100%; height: 170px; border-top: 1px solid var(--line); image-rendering: pixelated; }
.rf-claim { padding: 26px; display: flex; flex-direction: column; justify-content: center; }
.rf-claim h3 { font-size: 26px; line-height: 1.2; }
.rf-claim h3 em { color: var(--g); font-style: normal; text-shadow: var(--glow); }
.rf-claim p { color: var(--muted); margin-top: 12px; }
.rf-chain { margin: 26px 0; padding: 18px 10px; overflow-x: auto; }
.rf-chain svg { min-width: 820px; width: 100%; height: auto; }
.rf-chain .blk rect { fill: #03140b; stroke: var(--g-dim); stroke-width: 1.2; rx: 3; }
.rf-chain .blk text { fill: var(--text); font-family: var(--mono); font-size: 12px; text-anchor: middle; }
.rf-chain .blk text.sub { fill: var(--muted); font-size: 9.5px; }
.rf-chain .blk.hl rect { stroke: var(--g); filter: drop-shadow(0 0 6px rgba(0,255,102,.5)); }
.rf-chain .wire { stroke: var(--g-deep); stroke-width: 2; fill: none; }
.rf-chain .pulse { stroke: var(--g); stroke-width: 2.5; fill: none; stroke-dasharray: 10 60; animation: flow2 1.6s linear infinite; filter: drop-shadow(0 0 3px var(--g)); }
@keyframes flow2 { to { stroke-dashoffset: -70; } }
.rf-chain .zone { fill: none; stroke: var(--copper-dim); stroke-dasharray: 4 4; }
.rf-chain .zone-lbl { fill: var(--copper); font-family: var(--mono); font-size: 10px; }
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cap { padding: 20px; transition: border-color .3s, box-shadow .3s; }
.cap:hover { border-color: var(--line-strong); box-shadow: 0 0 30px -10px rgba(0,255,102,.4) inset; }
.cap .ic { font-family: var(--mono); color: var(--g); font-size: 12px; letter-spacing: 1px; }
.cap h4 { font-size: 18px; margin: 6px 0 8px; }
.cap p { color: var(--muted); font-size: 14.5px; }

/* ---------- hardware ---------- */
.hw-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.hw { padding: 20px; }
.hw h4 { font-family: var(--mono); font-size: 14px; color: var(--g); margin-bottom: 10px; letter-spacing: .5px; }
.hw ul { list-style: none; }
.hw li { font-size: 14px; color: var(--muted); padding: 4px 0; border-bottom: 1px dashed rgba(0,255,102,.08); }
.hw li:last-child { border: 0; }

/* ---------- projects ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.filter {
  font-family: var(--mono); font-size: 13px; padding: 7px 12px; cursor: pointer;
  background: transparent; color: var(--muted); border: 1px solid var(--line); border-radius: var(--radius); transition: all .2s;
}
.filter:hover { color: var(--g); border-color: var(--line-strong); }
.filter.on { background: var(--g); color: #000; border-color: var(--g); box-shadow: var(--glow); }
.filter .n { opacity: .6; margin-left: 4px; }
.proj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.proj {
  padding: 20px; display: flex; flex-direction: column; transition: transform .3s, border-color .3s, box-shadow .3s, opacity .3s;
  overflow: hidden;
}
.proj::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%), rgba(0,255,102,.12), transparent 40%);
}
.proj:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 14px 40px -18px rgba(0,255,102,.5); }
.proj:hover::after { opacity: 1; }
.proj .cat { font-family: var(--mono); font-size: 11px; color: var(--g); letter-spacing: 1px; text-transform: uppercase; display: flex; justify-content: space-between; gap: 8px; }
.proj .cat .yr { color: var(--faint); }
.proj h3 { font-size: 19px; margin: 8px 0 8px; line-height: 1.25; }
.proj p { color: var(--muted); font-size: 14.5px; flex: 1; }
.proj .tags { margin-top: 14px; }
.proj .link { margin-top: 12px; font-family: var(--mono); font-size: 12.5px; }
.proj.hide { display: none; }
.proj.star { border-color: rgba(0,255,102,.32); }
.proj.star .cat::before { content: "★ featured"; color: var(--copper); order: 2; }

/* ---------- experience ---------- */
.cv-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 26px; }
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--g), var(--g-deep)); box-shadow: var(--glow); }
.job { position: relative; padding: 18px 20px; margin-bottom: 16px; }
.job::before {
  content: ""; position: absolute; left: -26px; top: 24px; width: 12px; height: 12px;
  background: #000; border: 2px solid var(--copper); border-radius: 50%; box-shadow: 0 0 10px var(--copper-dim);
}
.job .when { font-family: var(--mono); font-size: 12px; color: var(--g); }
.job h4 { font-size: 18px; margin: 4px 0 2px; }
.job h4 span { color: var(--muted); font-weight: 400; font-size: 15px; }
.job p { color: var(--muted); font-size: 14.5px; margin-top: 6px; }
.side-block { padding: 20px; margin-bottom: 16px; }
.side-block h4 { font-family: var(--mono); font-size: 13px; color: var(--g); letter-spacing: 1px; margin-bottom: 12px; text-transform: uppercase; }
.side-block .row { padding: 8px 0; border-bottom: 1px dashed rgba(0,255,102,.1); font-size: 14.5px; }
.side-block .row:last-child { border: 0; }
.side-block .row small { display: block; color: var(--muted); font-family: var(--mono); font-size: 12px; }

/* skills matrix */
.skills { margin-top: 30px; padding: 22px; }
.skill-row { display: grid; grid-template-columns: 190px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px dashed rgba(0,255,102,.1); }
.skill-row:last-child { border: 0; }
.skill-row .k { font-family: var(--mono); font-size: 13px; color: var(--g); }
.skill-row .v { display: flex; flex-wrap: wrap; gap: 6px; }

/* ---------- contact ---------- */
#contact .panel { padding: 34px; text-align: center; }
#contact h2 { font-size: clamp(28px, 4vw, 44px); }
#contact p { color: var(--muted); margin: 12px auto 24px; max-width: 60ch; }
#contact .hero-cta { justify-content: center; }

footer { text-align: center; padding: 30px 20px 40px; font-family: var(--mono); font-size: 12px; color: var(--faint); border-top: 1px solid var(--line); }

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .hero-grid, .about-grid, .rf-top, .cv-grid { grid-template-columns: 1fr; }
  .chip-stage { max-width: 380px; margin: 0 auto; }
  .cap-grid, .proj-grid { grid-template-columns: repeat(2, 1fr); }
  .hw-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  section { padding: 90px 16px 50px; }
  .nav-inner { padding: 10px 16px; }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0;
    background: rgba(1,6,3,.97); border-bottom: 1px solid var(--line); display: none; padding: 8px 16px 14px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 6px; }
  .theory-grid, .cap-grid, .proj-grid, .hw-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .skill-row { grid-template-columns: 1fr; }
  .hero-name { letter-spacing: -1px; }
  .about-text, .rf-claim { padding: 20px; }
  #contact .panel { padding: 24px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- fixes: grid overflow from wide equations, analyzer fill ---------- */
.theory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.proj-grid > *, .cap-grid > *, .theory-grid > *, .rf-top > *, .about-grid > *, .cv-grid > *, .hero-grid > * { min-width: 0; }
.theory .idx { flex-wrap: wrap; }
.theory .eq { position: relative; }
.theory .eq .katex-display { margin: 0; overflow-x: auto; overflow-y: hidden; padding: 2px 0; }
.analyzer { display: flex; flex-direction: column; }
#waterfall { flex: 1; min-height: 170px; }
@media (max-width: 760px) {
  .theory-grid { grid-template-columns: minmax(0, 1fr); }
  .theory .eq { font-size: 13px; }
}
.proj .link + .link { margin-top: 4px; }

/* ---------- live sites ---------- */
.live-summary { font-family: var(--mono); font-size: 13px; color: var(--muted); margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
.live-summary b { color: var(--g); font-weight: 500; }
.live-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.live-grid > * { min-width: 0; }
.site {
  display: flex; flex-direction: column; gap: 6px; padding: 16px 18px; color: var(--text);
  transition: transform .25s, border-color .25s, box-shadow .25s; overflow: hidden;
}
.site:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: 0 12px 34px -16px rgba(0,255,102,.55); text-shadow: none; }
.site .top { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-family: var(--mono); font-size: 11px; color: var(--faint); text-transform: uppercase; letter-spacing: 1px; }
.site .dom { font-family: var(--mono); font-size: 16px; color: var(--g); word-break: break-all; }
.site .dom small { color: var(--faint); font-size: 13px; }
.site .lbl { font-size: 14px; color: var(--muted); flex: 1; }
.site .ping { font-family: var(--mono); font-size: 11.5px; color: var(--faint); display: flex; align-items: center; gap: 8px; margin-top: 4px; }
.site .ping b { color: var(--g); font-weight: 500; min-width: 64px; text-align: right; }
.site .bar { flex: 1; height: 3px; background: var(--g-deep); position: relative; overflow: hidden; border-radius: 2px; }
.site .bar i { position: absolute; top: 0; bottom: 0; left: 0; width: 0; background: var(--g); box-shadow: var(--glow); transition: width .8s ease; }
.site.down .dom { color: var(--muted); }
.site.down .ping b { color: var(--danger); }
.led { width: 9px; height: 9px; border-radius: 50%; display: inline-block; flex: none; }
.led.on { background: var(--g); box-shadow: 0 0 8px var(--g); animation: ledPulse 1.8s ease-in-out infinite; }
.led.wait { background: var(--copper); box-shadow: 0 0 8px var(--copper); animation: blink .8s steps(1) infinite; }
.led.off { background: var(--danger); box-shadow: 0 0 8px var(--danger); }
@keyframes ledPulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

/* ---------- portrait in the chip die ---------- */
.chip-stage .photo { transition: opacity .6s ease; }
.chip-stage .photo-color { opacity: 0; }
.chip-stage:hover .photo-color { opacity: 1; }
.chip-stage:hover .photo-green { opacity: 0; }
.chip-label { font-size: 11px; letter-spacing: 2px; }
.die-scan { animation: dieScan 3.6s cubic-bezier(.5,0,.5,1) infinite; }
@keyframes dieScan { 0% { transform: translateY(0); } 70%, 100% { transform: translateY(216px); } }
.die-frame { fill: none; stroke: var(--g); stroke-width: 1; filter: drop-shadow(0 0 4px rgba(0,255,102,.6)); }