/* ==========================================================================
   Varun Chilukuri — Portfolio
   Industrial / machined base, baby-blue accent.
   ========================================================================== */

:root {
  --bg: #121315;
  --bg-alt: #17181b;
  --panel: #1c1e22;
  --panel-raised: #212327;
  --line: #33363c;
  --line-soft: #26282d;
  --text: #eceef0;
  --text-dim: #a4a8b0;
  --text-faint: #6b6f78;
  --accent: #4fc3f7;
  --accent-dim: #2196c9;
  --accent-glow: rgba(79, 195, 247, 0.22);
  --steel: #6fb3b8;
  --win: #34d399;
  --purple: #a78bfa;
  --purple-dim: #7c5fe6;
  --radius: 3px;
  --font-head: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --font-hand: "Caveat", cursive;
  --maxw: 1180px;
}

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

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(111, 179, 184, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 179, 184, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

/* ---------- boot sequence: pure CSS, always resolves even if JS never runs ---------- */
.boot-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(79, 195, 247, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 195, 247, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
  animation: boot-overlay-hide 0.4s ease forwards;
  animation-delay: 1000ms;
}
.boot-lines { font-family: var(--font-mono); font-size: clamp(0.85rem, 2vw, 1.05rem); letter-spacing: 0.04em; }
.boot-line { margin: 0.35rem 0; opacity: 0; transform: translateX(-10px); animation: boot-line-in 0.3s ease forwards; }
.boot-line.boot-green { color: var(--win); animation-delay: 0ms; }
.boot-line.boot-blue { color: var(--accent); animation-delay: 220ms; }
.boot-line.boot-purple { color: var(--purple); animation-delay: 440ms; }
@keyframes boot-line-in { to { opacity: 1; transform: translateX(0); } }
@keyframes boot-overlay-hide { to { opacity: 0; visibility: hidden; } }

.grain-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- utility ---------- */
.handwritten { font-family: var(--font-hand); color: var(--accent); font-size: 1.15rem; }
.accent-underline { color: var(--accent); position: relative; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(18, 19, 21, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: baseline; gap: 0.5rem; text-decoration: none; }
.brand-mark {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  border: 1px solid var(--accent);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius);
  letter-spacing: 0.05em;
}
.brand-sub { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-dim); }

.main-nav { display: flex; gap: 1.8rem; }
.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: var(--text-dim);
  text-transform: uppercase;
  position: relative;
  padding-bottom: 0.2rem;
  transition: color 0.2s;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.25s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--text); }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }

.header-social { display: flex; gap: 0.5rem; }
.header-social a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-dim);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  transition: color 0.2s, border-color 0.2s;
}
.header-social a:hover { color: var(--accent); border-color: var(--accent); }

.nav-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 0.4rem; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); display: block; }

/* ---------- fixed gate: blueprint, deep-blue theme scoped locally ---------- */
html, body { height: 100%; overflow: hidden; }

.gate {
  --line: rgba(255, 255, 255, 0.55);
  --line-soft: rgba(255, 255, 255, 0.25);
  --text-faint: rgba(255, 255, 255, 0.68);
  --text-dim: rgba(255, 255, 255, 0.9);
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem 0;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.16) 0 1px, transparent 1px 136px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.16) 0 1px, transparent 1px 136px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 34px),
    radial-gradient(ellipse at 50% 35%, #002a80 0%, #001f64 55%, #000f38 100%);
  overflow: hidden;
}
.blueprint-hint {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin: 0.2rem 0 0;
}
.hint-arrow { display: inline-block; color: var(--accent); animation: hint-bounce 1.6s ease-in-out infinite; }
@keyframes hint-bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(4px); } }

.blueprint-arm-outer {
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.blueprint-arm-wrap {
  position: relative;
  aspect-ratio: 1672 / 941;
  max-width: 100%;
  max-height: 100%;
}
.blueprint-arm-img {
  display: block;
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 50px rgba(79, 195, 247, 0.2));
  -webkit-mask-image:
    linear-gradient(to right, transparent, #000 4%, #000 96%, transparent),
    linear-gradient(to bottom, transparent, #000 4%, #000 96%, transparent);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(to right, transparent, #000 4%, #000 96%, transparent),
    linear-gradient(to bottom, transparent, #000 4%, #000 96%, transparent);
  mask-composite: intersect;
}

.bp-fact-html {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.6);
  white-space: nowrap;
  text-shadow: 0 1px 5px rgba(0, 20, 70, 0.85);
}
.bp-fact-html.title { top: 1.5%; left: 50%; transform: translateX(-50%); font-size: 0.62rem; color: var(--accent); letter-spacing: 0.1em; }
.bp-fact-html.corner.tr { top: 1.5%; right: 2%; }
.bp-fact-html.corner.tr2 { top: 4.5%; right: 2%; }
.bp-fact-html.corner.br { bottom: 5%; right: 2%; }
.bp-fact-html.corner.br2 { bottom: 1.5%; right: 2%; }

.arm-hotspot {
  position: absolute;
  width: 0;
  height: 0;
  text-decoration: none;
  cursor: pointer;
  z-index: 3;
}
.arm-hotspot-dot {
  position: absolute;
  left: 0;
  top: 0;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  transition: transform 0.2s ease;
}
.arm-hotspot-leader {
  position: absolute;
  background: rgba(255, 255, 255, 0.55);
  transition: background 0.2s ease;
}
.dir-right .arm-hotspot-leader { left: 0; top: 0; width: 68px; height: 1px; }
.dir-left .arm-hotspot-leader { right: 0; top: 0; width: 68px; height: 1px; }
.dir-up .arm-hotspot-leader { bottom: 0; left: 0; width: 1px; height: 68px; }
.dir-down .arm-hotspot-leader { top: 0; left: 0; width: 1px; height: 68px; }
.dir-up-right .arm-hotspot-leader,
.dir-down-right .arm-hotspot-leader { display: none; }
.dir-up-right .arm-hotspot-leader-h,
.dir-down-right .arm-hotspot-leader-h { position: absolute; left: 0; width: 46px; height: 1px; background: rgba(255, 255, 255, 0.55); }
.dir-up-right .arm-hotspot-leader-v { position: absolute; left: 0; width: 1px; height: 42px; background: rgba(255, 255, 255, 0.55); bottom: 0; }
.dir-up-right .arm-hotspot-leader-h { bottom: 42px; }
.dir-down-right .arm-hotspot-leader-v { position: absolute; left: 0; width: 1px; height: 42px; background: rgba(255, 255, 255, 0.55); top: 0; }
.dir-down-right .arm-hotspot-leader-h { top: 42px; }
.arm-hotspot-label {
  position: absolute;
  display: flex;
  flex-direction: column;
  font-family: var(--font-mono);
}
.dir-right .arm-hotspot-label { left: 72px; top: 50%; transform: translateY(-50%); }
.dir-left .arm-hotspot-label { right: 72px; top: 50%; transform: translateY(-50%); text-align: right; }
.dir-up .arm-hotspot-label { bottom: 72px; left: 50%; transform: translateX(-50%); text-align: center; }
.dir-down .arm-hotspot-label { top: 72px; left: 50%; transform: translateX(-50%); text-align: center; }
.dir-up-right .arm-hotspot-label { bottom: 46px; left: 46px; }
.dir-down-right .arm-hotspot-label { top: 46px; left: 46px; }
.arm-hotspot-label b { font-size: 0.72rem; font-weight: 700; color: #fff; letter-spacing: 0.03em; white-space: nowrap; text-shadow: 0 1px 4px rgba(0, 8, 30, 0.9), 0 0 10px rgba(0, 8, 30, 0.7); }
.arm-hotspot:hover .arm-hotspot-dot,
.arm-hotspot:focus-visible .arm-hotspot-dot { transform: scale(1.5); }
.arm-hotspot:hover .arm-hotspot-leader,
.arm-hotspot:focus-visible .arm-hotspot-leader,
.arm-hotspot:hover .arm-hotspot-leader-h,
.arm-hotspot:focus-visible .arm-hotspot-leader-h,
.arm-hotspot:hover .arm-hotspot-leader-v,
.arm-hotspot:focus-visible .arm-hotspot-leader-v { background: var(--accent); }
.arm-hotspot:hover .arm-hotspot-label b,
.arm-hotspot:focus-visible .arm-hotspot-label b { color: var(--accent); }

.bp-dim-html { position: absolute; }
.bp-dim-line { display: block; height: 1px; background: rgba(255, 255, 255, 0.5); position: relative; }
.bp-dim-line::before, .bp-dim-line::after { content: ""; position: absolute; top: -4px; width: 1px; height: 8px; background: rgba(255, 255, 255, 0.5); }
.bp-dim-line::before { left: 0; }
.bp-dim-line::after { right: 0; }
.bp-dim-text { display: block; text-align: center; font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.04em; color: rgba(255, 255, 255, 0.65); margin-top: 5px; text-shadow: 0 1px 4px rgba(0, 8, 30, 0.9); white-space: nowrap; }
.bp-dim-line-v { display: block; width: 1px; background: rgba(255, 255, 255, 0.5); position: relative; }
.bp-dim-line-v::before, .bp-dim-line-v::after { content: ""; position: absolute; left: -4px; height: 1px; width: 8px; background: rgba(255, 255, 255, 0.5); }
.bp-dim-line-v::before { top: 0; }
.bp-dim-line-v::after { bottom: 0; }
.bp-dim-text-v { position: absolute; left: 6px; top: 50%; transform: translateY(-50%); white-space: nowrap; font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.04em; color: rgba(255, 255, 255, 0.65); text-shadow: 0 1px 4px rgba(0, 8, 30, 0.9); }
.bp-angle-html {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--accent);
  letter-spacing: 0.03em;
  text-shadow: 0 1px 4px rgba(0, 8, 30, 0.9);
}

.bp-tool {
  stroke: rgba(255, 255, 255, 0.55);
  stroke-width: 1.4;
  fill: none;
  vector-effect: non-scaling-stroke;
}
.bp-tool text {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: rgba(255, 255, 255, 0.55);
  stroke: none;
  letter-spacing: 0.03em;
}
.bp-tool-standalone {
  position: absolute;
  z-index: 1;
  filter: drop-shadow(0 1px 3px rgba(0, 8, 30, 0.7));
}
.bp-tool-caliper { width: 200px; left: 63%; top: 2%; }
.bp-tool-protractor { width: 150px; left: 76%; top: 46%; }
.bp-tool-pliers { width: 46px; left: 88%; top: 68%; }
.bp-pliers-arm-l { transform-origin: 0 0; animation: pliers-open-l 2.4s ease-in-out infinite alternate; }
.bp-pliers-arm-r { transform-origin: 0 0; animation: pliers-open-r 2.4s ease-in-out infinite alternate; }
@keyframes pliers-open-l { from { transform: rotate(0deg); } to { transform: rotate(-11deg); } }
@keyframes pliers-open-r { from { transform: rotate(0deg); } to { transform: rotate(11deg); } }

.bp-protractor-needle {
  transform-origin: 0 0;
  animation: protractor-sweep 13s ease-in-out infinite;
}
@keyframes protractor-sweep {
  0% { transform: rotate(0deg); }
  50% { transform: rotate(-180deg); }
  100% { transform: rotate(0deg); }
}
.bp-tool text.bp-protractor-value { font-family: var(--font-mono); font-size: 15px; font-weight: 700; fill: var(--accent); text-anchor: middle; }
.bp-caliper-slider {
  animation: caliper-slide 4s ease-in-out infinite alternate;
}
@keyframes caliper-slide {
  from { transform: translateX(0); }
  to { transform: translateX(-72px); }
}


.blueprint-titleblock {
  position: absolute;
  top: 1.6rem;
  left: 1.8rem;
  z-index: 2;
  text-align: left;
  max-width: min(340px, 44vw);
  text-shadow: 0 1px 6px rgba(0, 20, 70, 0.85), 0 0 22px rgba(0, 20, 70, 0.6);
}
.blueprint-titleblock .tb-title { font-size: clamp(1.25rem, 2.2vw, 1.6rem); margin: 0 0 0.3rem; color: #fff; }
.tb-name { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-dim); letter-spacing: 0.08em; }
.tb-overline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: rgba(255,255,255,0.8);
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  margin: 0.45rem 0 0;
  line-height: 1.4;
}
.tb-overline .dot { flex: none; margin-top: 0.35rem; width: 6px; height: 6px; border-radius: 50%; background: var(--win); box-shadow: 0 0 8px var(--win); }
.tb-meta { display: flex; gap: 0.7rem; font-family: var(--font-mono); font-size: 0.64rem; color: rgba(255,255,255,0.75); letter-spacing: 0.03em; margin-top: 0.6rem; padding-top: 0.5rem; border-top: 1px dashed rgba(255,255,255,0.35); }
.tb-contact-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-top: 0.6rem;
}
.tb-contact { display: flex; flex-direction: column; gap: 0.32rem; font-family: var(--font-mono); font-size: 0.72rem; margin-top: 0.32rem; }
.tb-contact a { color: var(--text-dim); text-decoration: none; }
.tb-contact a:hover { color: var(--accent); text-decoration: underline; }

.tb-footer-note {
  margin-top: 0.6rem;
  padding-top: 0.45rem;
  border-top: 1px dashed rgba(255,255,255,0.35);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.5;
}
.tb-footer-note p { margin: 0; }

@media (max-width: 1100px) {
  .blueprint-titleblock { max-width: min(230px, 38vw); }
  .blueprint-titleblock .tb-title { font-size: 0.95rem; }
  .tb-overline { display: none; }
  .bp-tool-standalone { display: none; }
  .gear-blueprint-1, .gear-blueprint-2 { display: none; }
  .bp-dim-line-v { height: 34px !important; }
  .dir-right .arm-hotspot-leader, .dir-left .arm-hotspot-leader { width: 40px; }
  .dir-up .arm-hotspot-leader, .dir-down .arm-hotspot-leader { height: 40px; }
  .dir-right .arm-hotspot-label { left: 44px; }
  .dir-left .arm-hotspot-label { right: 44px; }
  .dir-up .arm-hotspot-label { bottom: 44px; }
  .dir-down .arm-hotspot-label { top: 44px; }
  .dir-up-right .arm-hotspot-leader-h, .dir-down-right .arm-hotspot-leader-h { width: 30px; }
  .dir-up-right .arm-hotspot-leader-v, .dir-down-right .arm-hotspot-leader-v { left: 0; height: 26px; }
  .dir-up-right .arm-hotspot-leader-h { bottom: 26px; }
  .dir-down-right .arm-hotspot-leader-h { top: 26px; }
  .dir-up-right .arm-hotspot-label { bottom: 30px; left: 30px; }
  .dir-down-right .arm-hotspot-label { top: 30px; left: 30px; }
  .tb-footer-note { display: none; }
  .arm-hotspot-label b { font-size: 0.62rem; }
  .bp-fact-html { font-size: 0.5rem; }
  .bp-fact-html.title { font-size: 0.52rem; }
  .bp-fact-html.corner.tr2, .bp-fact-html.corner.br { display: none; }
  .arm-hotspot[data-card="morebuilds"] { left: 54% !important; top: 19% !important; }
  .arm-hotspot[data-card="awards"] { left: 57% !important; top: 24% !important; }
  .arm-hotspot[data-card="skills"] { top: 42% !important; }
}

/* ---------- card overlay system ---------- */
.card {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 500;
  overflow-y: auto;
  background: var(--bg);
}
.card.is-open { display: block; }
.card-close {
  position: fixed;
  top: 1.1rem;
  right: 1.3rem;
  z-index: 600;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.card-close:hover { border-color: var(--accent); color: var(--accent); }
.card-footer-note { margin-top: 3rem; padding-top: 1.2rem; border-top: 1px dashed var(--line-soft); text-align: center; color: var(--text-faint); font-size: 0.85rem; }
.card-footer-note p { margin: 0.3rem 0; }
.intro-card .lede { max-width: 60ch; }

.spin-slow { animation: spin 60s linear infinite; }
.spin-reverse { animation: spin-reverse 70s linear infinite; }
.spin-fast { animation: spin 26s linear infinite; }
.spin-reverse-fast { animation: spin-reverse 32s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-reverse { to { transform: rotate(-360deg); } }

/* ---------- thin, faint gears — hero cluster + a few scattered small touches ---------- */
.gear-mark {
  position: absolute;
  pointer-events: none;
  z-index: 0;
  color: var(--line);
  opacity: 0.55;
}
.gear-mark svg { width: 100%; height: 100%; }
.gear-blueprint-1 { left: 16%; top: 80%; width: 46px; height: 46px; }
.gear-blueprint-2 { left: 90%; top: 32%; width: 42px; height: 42px; }

.gear-tiny { width: 90px; height: 90px; opacity: 0.5; }
.gear-about-1 { top: 1rem; right: -4rem; }
.gear-about-2 { bottom: -1.5rem; left: -4.5rem; }
.gear-about-3 { top: 40%; right: -4.5rem; width: 70px; height: 70px; }
.gear-fetch-1 { top: 1rem; right: -4rem; }
.gear-street-1 { top: 1rem; right: -4rem; }
.gear-hope-1 { top: 1rem; right: -4rem; }
.gear-arm-1 { top: 1rem; right: -4rem; }
.gear-morebuilds-1 { top: 1rem; right: -4rem; }
.gear-hardware-1 { top: 1rem; left: -4rem; }
.gear-hardware-2 { top: 8%; left: 460px; width: 140px; height: 140px; opacity: 0.5; }
.gear-hardware-3 { top: 58%; left: 600px; width: 100px; height: 100px; opacity: 0.45; }
.gear-awards-1 { bottom: 1rem; left: -4rem; }
.gear-awards-2 { top: 1rem; right: -4rem; }

.overline {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.2rem;
}
.overline .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 5.2vw, 4rem);
  line-height: 1.05;
  font-weight: 700;
  margin: 0 0 1.2rem;
  letter-spacing: -0.01em;
}
/* ---------- image placeholders ---------- */
.img-placeholder {
  border: 1.5px dashed var(--line);
  border-radius: var(--radius);
  background: repeating-linear-gradient(135deg, var(--panel) 0 10px, var(--bg-alt) 10px 20px);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.6rem;
  padding: 1.2rem;
  color: var(--text-faint);
  position: relative;
  transition: border-color 0.2s;
}
.img-placeholder:hover { border-color: var(--accent-dim); }
.img-placeholder .ph-icon { font-size: 1.6rem; opacity: 0.7; }
.img-placeholder .ph-text { font-family: var(--font-mono); font-size: 0.72rem; line-height: 1.5; max-width: 32ch; }
.img-placeholder .ph-text code { color: var(--steel); background: rgba(111,179,184,0.1); padding: 0.1rem 0.3rem; border-radius: 2px; }
.img-placeholder.small { min-height: 140px; }

/* corner ticks for that technical-drawing feel, used sparingly */
.img-placeholder::before, .img-placeholder::after {
  content: "";
  position: absolute;
  width: 10px; height: 10px;
  border-color: var(--line);
  border-style: solid;
  opacity: 0.6;
}
.img-placeholder::before { top: 6px; left: 6px; border-width: 1px 0 0 1px; }
.img-placeholder::after { bottom: 6px; right: 6px; border-width: 0 1px 1px 0; }

/* bare placeholder: text only, no box, for slots being filled in later */
.img-placeholder.plain {
  border: none;
  background: none;
  padding: 0;
}
.img-placeholder.plain::before, .img-placeholder.plain::after { display: none; }

/* ---------- marquee: pinned to the bottom of the gate ---------- */
.marquee-strip {
  flex: 0 0 auto;
  width: 100%;
  border-top: 1px solid var(--line-soft);
  background: rgba(0, 0, 0, 0.2);
  overflow: hidden;
  padding: 0.35rem 0;
  margin-top: auto;
}
.marquee-track {
  display: flex;
  gap: 1rem;
  white-space: nowrap;
  width: max-content;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  animation: marquee 32s linear infinite;
}
.marquee-track span:nth-child(odd) { color: var(--accent-dim); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: 6rem 1.5rem; position: relative; }
.section-head { position: relative; z-index: 1; display: flex; align-items: baseline; gap: 1rem; margin-bottom: 1rem; }
.section-num {
  font-family: var(--font-mono);
  color: var(--purple);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  border: 1px solid var(--line);
  border-left: 2px solid var(--purple-dim);
  padding: 0.15rem 0.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.section-head h2 { font-family: var(--font-head); font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 0; }
.section-intro { position: relative; z-index: 1; color: var(--text-dim); max-width: 62ch; margin: 0 0 3rem; }
.section-intro.small { margin-bottom: 2rem; font-size: 0.95rem; }

/* ---------- about ---------- */
.about-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr; max-width: 720px; }
.lede { font-size: 1.2rem; font-weight: 500; color: var(--text); }
.about-copy p { color: var(--text-dim); }
.about-copy strong { color: var(--accent); }
.inline-note { display: block; margin-top: 0.6rem; }


.about-footer {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--line);
  max-width: 320px;
}
.about-fact { display: flex; flex-direction: column; gap: 0.3rem; }
.fact-label { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent-dim); }
.about-fact span:last-child { font-size: 0.9rem; color: var(--text-dim); }

/* ---------- projects ---------- */
.project-card.flagship {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 2.5rem 0;
  border-top: 1px solid var(--line-soft);
  background: var(--bg);
  transition: transform 0.25s ease;
}
.project-card.flagship:hover { transform: translateY(-2px); }
.project-card.flagship:hover img { filter: brightness(1.06); }
.project-media img { transition: filter 0.25s ease; }
.project-card.flagship:first-of-type { border-top: none; }
.project-card.flagship.reverse .project-media { order: 2; }
.project-card.flagship.reverse .project-body { order: 1; }

.project-media { display: grid; grid-template-columns: 1.4fr 1fr; gap: 0.8rem; }
.project-media .img-placeholder { min-height: 260px; }
.project-media .img-placeholder.small { min-height: 260px; }
.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  display: block;
}
.project-media > img { height: 260px; }
.project-media.gallery-3 { grid-template-columns: 1fr 1fr; grid-template-rows: auto auto; }
.project-media.gallery-3 img:first-child { grid-column: 1 / -1; height: 280px; }
.project-media.gallery-3 img:not(:first-child) { height: 180px; }
.project-media.gallery-4 { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }
.project-media.gallery-4 img { height: 180px; }

.project-kicker { display: flex; align-items: center; gap: 1rem; margin-bottom: 0.7rem; flex-wrap: wrap; }
.badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  padding: 0.28rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-dim);
}
.badge-win { border-color: var(--win); color: var(--win); }
.badge.small { padding: 0.2rem 0.45rem; font-size: 0.65rem; }

.project-body h3 { font-family: var(--font-head); font-size: 1.7rem; margin: 0 0 0.3rem; }
.subname { font-size: 0.75em; color: var(--text-faint); font-weight: 400; }
.project-role { font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent-dim); margin: 0 0 0.9rem; }
.project-body > p { color: var(--text-dim); }

.spec-list { list-style: none; margin: 1.1rem 0; padding: 0; display: grid; gap: 0.5rem; }
.spec-list li { font-size: 0.88rem; color: var(--text-dim); border-left: 2px solid var(--accent-dim); padding-left: 0.7rem; }
.spec-list li span { font-family: var(--font-mono); color: var(--text-faint); display: inline-block; min-width: 90px; font-size: 0.75rem; text-transform: uppercase; }

.project-links { display: flex; gap: 1.2rem; margin-top: 1.2rem; }
.project-links a { font-family: var(--font-mono); font-size: 0.82rem; text-decoration: none; color: var(--steel); }
.project-links a:hover { text-decoration: underline; }

.skill-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.1rem; }
.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
}
.mini-body .skill-tags { margin-top: 0.8rem; }

.more-heading { font-family: var(--font-head); font-size: 1.3rem; margin: 4rem 0 0.4rem; padding-top: 2.5rem; border-top: 1px solid var(--line-soft); }

.project-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.4rem; }
.mini-card {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}
.mini-card:hover { transform: translateY(-3px); border-color: var(--line); }
.mini-card .img-placeholder { min-height: 160px; border: none; border-bottom: 1px solid var(--line-soft); border-radius: 0; }
.mini-card img { width: 100%; height: 160px; object-fit: cover; display: block; }
.mini-card .mini-media-pair { display: grid; grid-template-columns: 1fr 1fr; }
.mini-card .mini-media-pair img { height: 160px; }
.mini-body { padding: 1.3rem; }
.mini-body h4 { font-family: var(--font-head); font-size: 1.1rem; margin: 0.5rem 0 0.5rem; }
.mini-body p { font-size: 0.88rem; color: var(--text-dim); margin: 0 0 0.7rem; }
.mini-link { font-family: var(--font-mono); font-size: 0.78rem; color: var(--steel); text-decoration: none; }
.mini-link:hover { text-decoration: underline; }

/* ---------- skills: compact rows, kept small and low-key on purpose ---------- */
.hardware { padding-top: 3rem; padding-bottom: 3rem; }
.hardware .section-head h2 { font-size: 1.3rem; }
.skills-rows { position: relative; z-index: 1; max-width: 400px; }
.skills-row {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
}
.skills-row:last-child { border-bottom: none; }

/* ---------- awards ---------- */
/* awards is a lower-key section on purpose: smaller heading, tighter spacing, quieter rows */
.awards { padding-top: 3rem; padding-bottom: 3rem; }
.awards .section-head h2 { font-size: 1.3rem; }
.award-list { position: relative; z-index: 1; display: grid; gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); }
.award-row { background: var(--panel); display: grid; grid-template-columns: 44px 1fr; gap: 1rem; padding: 1rem 1.2rem; align-items: start; }
.award-mark { font-family: var(--font-mono); font-size: 1rem; color: var(--text-faint); font-weight: 500; }
.award-row h4 { font-family: var(--font-body); font-weight: 600; font-size: 0.92rem; margin: 0 0 0.3rem; color: var(--text-dim); }
.award-row p { font-size: 0.85rem; color: var(--text-faint); margin: 0; max-width: 68ch; }
.award-row p strong { color: var(--accent); }

/* ---------- contact ---------- */
.contact { text-align: center; }
.contact-inner { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
.contact .section-num { display: inline-block; margin-bottom: 1rem; }
.contact h2 { font-family: var(--font-head); font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0 0 0.6rem; }
.contact-subtitle { color: var(--text-dim); margin: 0 0 2.2rem; }
.contact-email {
  display: inline-block;
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  margin-bottom: 2rem;
  border-bottom: 1px dashed var(--accent-dim);
  padding-bottom: 0.2rem;
  transition: opacity 0.2s;
}
.contact-email:hover { opacity: 0.8; }
.contact-links { display: flex; justify-content: center; gap: 1.6rem; flex-wrap: wrap; }
.contact-links a { font-family: var(--font-mono); font-size: 0.88rem; text-decoration: none; color: var(--text-dim); border-bottom: 1px solid transparent; padding-bottom: 2px; }
.contact-links a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  border-top: 1px solid var(--line-soft);
  padding: 2rem 1.5rem 3rem;
  text-align: center;
  color: var(--text-faint);
  font-size: 0.85rem;
}
.site-footer p { position: relative; z-index: 1; margin: 0.3rem 0; }
.footer-note { font-size: 1.05rem; }

/* ---------- reveal animation ---------- */
[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ---------- letter-by-letter heading reveal ---------- */
.char-split .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.3em);
  animation: char-in 0.5s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}
@keyframes char-in {
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .gate { padding-top: 3.5rem; gap: 0.3rem; }
  .about-footer { grid-template-columns: 1fr; }
  .gear-hardware-2, .gear-hardware-3 { display: none; }
  .project-card.flagship { grid-template-columns: 1fr; }
  .project-card.flagship.reverse .project-media,
  .project-card.flagship.reverse .project-body { order: initial; }
  .project-media { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav { position: fixed; top: 60px; left: 0; right: 0; background: var(--bg); flex-direction: column; padding: 1.2rem 1.5rem; border-bottom: 1px solid var(--line-soft); transform: translateY(-120%); opacity: 0; transition: all 0.25s ease; gap: 1rem; }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .nav-toggle { display: flex; }
  .gate { padding: 3rem 0.5rem 0; }
  .blueprint-hint { font-size: 0.6rem; }
  .tb-contact { font-size: 0.6rem; gap: 0.5rem; }
  .marquee-strip { display: none; }
  .project-media { grid-template-columns: 1fr; }
  .project-media.gallery-3, .project-media.gallery-4 { grid-template-columns: 1fr; }
  .project-media.gallery-3 img:first-child { grid-column: 1; height: 220px; }
  .award-row { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}