/* ============================================================
   DOSSIER.CSS - Komeyl Mohebian - Technical Dossier
   Aesthetic: engineering-drawing / blueprint (honest approximation,
   built with native CSS, no framework). Dual theme: blueprint-dark
   and drafting-paper-light, swapped via [data-theme] tokens.
   Single accent: burnt amber. Sharp 3px radius system throughout.
   ============================================================ */

/* ---- Theme tokens -------------------------------------------------- */
:root,
[data-theme="dark"] {
  --bg:        #0c0e11;
  --bg-1:      #101317;
  --bg-2:      #14181d;
  --ink:       #e8e5dc;
  --ink-2:     #a7adb2;
  --ink-3:     #888e94;
  --hair:      rgba(232, 229, 220, 0.14);
  --hair-2:    rgba(232, 229, 220, 0.30);
  --grid:      rgba(232, 229, 220, 0.045);
  --grid-2:    rgba(232, 229, 220, 0.085);
  --accent:    #ee7d3b;
  --accent-soft: rgba(238, 125, 59, 0.14);
  --accent-line: rgba(238, 125, 59, 0.45);
  --accent-ink: #140f0a;
  --shadow:    0 22px 60px rgba(0, 0, 0, 0.55);
  --sel:       rgba(238, 125, 59, 0.28);
  color-scheme: dark;
}

[data-theme="light"] {
  --bg:        #eceae3;
  --bg-1:      #f3f1eb;
  --bg-2:      #f8f7f2;
  --ink:       #16191d;
  --ink-2:     #4c5258;
  --ink-3:     #5e646a;
  --hair:      rgba(20, 23, 27, 0.16);
  --hair-2:    rgba(20, 23, 27, 0.34);
  --grid:      rgba(20, 23, 27, 0.05);
  --grid-2:    rgba(20, 23, 27, 0.085);
  --accent:    #b9521d;
  --accent-soft: rgba(185, 82, 29, 0.12);
  --accent-line: rgba(185, 82, 29, 0.40);
  --accent-ink: #fbf4ee;
  --shadow:    0 22px 55px rgba(45, 38, 30, 0.16);
  --sel:       rgba(185, 82, 29, 0.22);
  color-scheme: light;
}

/* ---- Design constants ---------------------------------------------- */
:root {
  --font:  "Geist", system-ui, sans-serif;
  --mono:  "Geist Mono", ui-monospace, "SFMono-Regular", monospace;
  --r:     3px;            /* single radius scale, sharp/technical */
  --wrap:  1200px;
  --pad:   clamp(1.25rem, 4vw, 2.5rem);
  --ease:  cubic-bezier(0.16, 1, 0.3, 1);

  /* z-index scale (documented, no arbitrary values) */
  --z-grid:   0;
  --z-base:   1;
  --z-nav:    100;
  --z-skip:   150;
  --z-loader: 300;
}

/* ---- Reset --------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 16px;
  font-weight: 400;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background 0.4s var(--ease), color 0.4s var(--ease);
}

img, svg { display: block; max-width: 100%; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
::selection { background: var(--sel); color: var(--ink); }

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

/* tabular numerals everywhere numbers matter */
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---- Skip link ----------------------------------------------------- */
.skip {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: var(--z-skip);
  padding: 0.6rem 1rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--r);
  transform: translateY(-150%);
  transition: transform 0.2s var(--ease);
}
.skip:focus { transform: translateY(0); }

/* ---- Blueprint grid background (the drafting surface) -------------- */
.bp-grid {
  position: fixed;
  inset: 0;
  z-index: var(--z-grid);
  pointer-events: none;
  background-image:
    linear-gradient(to right,  var(--grid)   1px, transparent 1px),
    linear-gradient(to bottom, var(--grid)   1px, transparent 1px),
    linear-gradient(to right,  var(--grid-2) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-2) 1px, transparent 1px);
  background-size: 32px 32px, 32px 32px, 160px 160px, 160px 160px;
  -webkit-mask-image: radial-gradient(135% 100% at 50% 0%, #000 55%, transparent 100%);
          mask-image: radial-gradient(135% 100% at 50% 0%, #000 55%, transparent 100%);
  transition: opacity 0.4s var(--ease);
}

/* ---- Layout helpers ------------------------------------------------ */
.wrap { width: min(100% - 2 * var(--pad), var(--wrap)); margin-inline: auto; }
main { position: relative; z-index: var(--z-base); }

.section { padding-block: clamp(4.5rem, 9vw, 7.5rem); position: relative; }
.section + .section { padding-top: clamp(3.5rem, 7vw, 6rem); }

/* Section header: the headline carries it, trailed by a measured rule.
   No number-eyebrow above headings (that is a banned AI tell). The
   dossier identity comes from per-item part numbers further down. */
.sec-head {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.sec-title {
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.05;
  text-wrap: balance;
}
.sec-rule { flex: 1 1 90px; min-width: 56px; height: 1px; background: var(--hair); transform-origin: left; align-self: center; }
.sec-note {
  flex-basis: 100%;
  color: var(--ink-2);
  max-width: 64ch;
  margin-top: 0.25rem;
  font-size: 1.02rem;
  line-height: 1.7;
  text-wrap: pretty;
}
.accent { color: var(--accent); }

/* ---- Page loader (plotting sheet) ---------------------------------- */
#loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background: var(--bg);
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 1.4rem;
  transition: opacity 0.5s var(--ease), visibility 0.5s var(--ease);
}
#loader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-mark {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.4em;
  color: var(--ink);
  padding-left: 0.4em;
}
.loader-track {
  width: 190px;
  height: 2px;
  background: var(--hair);
  overflow: hidden;
}
.loader-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width 0.35s var(--ease);
}
.loader-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--ink-3);
}

/* ---- Navigation ---------------------------------------------------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-nav);
  height: 64px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
}
.nav.scrolled {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: blur(14px);
          backdrop-filter: blur(14px);
  border-bottom-color: var(--hair);
}
.nav-inner {
  width: min(100% - 2 * var(--pad), var(--wrap));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
}
.brand .brand-tag {
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid var(--accent-line);
  border-radius: var(--r);
  padding: 0.12rem 0.4rem;
  letter-spacing: 0.05em;
}
.nav-links { display: flex; align-items: center; gap: 1.9rem; }
.nav-links a {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  position: relative;
  padding-block: 0.4rem;
  transition: color 0.2s var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--ink); }

.nav-right { display: flex; align-items: center; gap: 0.6rem; }

.theme-toggle {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  color: var(--ink-2);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.1s var(--ease);
}
.theme-toggle:hover { color: var(--ink); border-color: var(--hair-2); }
.theme-toggle:active { transform: scale(0.94); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--hair-2);
  border-radius: var(--r);
  color: var(--ink);
  white-space: nowrap;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.1s var(--ease);
}
.nav-cta:hover { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.nav-cta:active { transform: translateY(1px); }

.nav-burger { display: none; width: 38px; height: 38px; border: 1px solid var(--hair); border-radius: var(--r); }
.nav-burger span { display: block; width: 17px; height: 1.5px; background: var(--ink); margin: 3px auto; transition: transform 0.25s var(--ease), opacity 0.2s var(--ease); }
.nav-burger.open span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-4.5px) rotate(-45deg); }

/* ---- Buttons ------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.4rem;
  border-radius: var(--r);
  font-family: var(--mono);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: transform 0.12s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--hair-2); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost:active { transform: translateY(1px); }

/* ---- Reveal animation (IntersectionObserver-driven) ---------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); transition-delay: calc(var(--i, 0) * 70ms); }
.reveal.in { opacity: 1; transform: none; }
.draw { transform: scaleX(0); transform-origin: left; transition: transform 0.8s var(--ease); transition-delay: calc(var(--i, 0) * 70ms); }
.draw.in { transform: scaleX(1); }

/* ============================================================
   HERO  -  asymmetric split (text left, portrait plate right)
   ============================================================ */
.hero { position: relative; min-height: 100dvh; display: flex; align-items: center; padding-top: 64px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  width: 100%;
  padding-block: clamp(2.5rem, 5vw, 4rem);
}
.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}
.hero-eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--accent); }
.hero-name {
  font-size: clamp(3rem, 9vw, 6.6rem);
  font-weight: 700;
  line-height: 0.96;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}
.hero-name .ln { display: block; }
.hero-name .ln-2 { color: var(--ink-2); }
.hero-name sup {
  font-family: var(--mono);
  font-size: 0.16em;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--accent);
  vertical-align: super;
  text-transform: none;
}
.hero-sub {
  margin-top: 1.6rem;
  font-size: clamp(1rem, 1.4vw, 1.16rem);
  color: var(--ink-2);
  max-width: 46ch;
  line-height: 1.7;
  text-wrap: pretty;
}
.hero-sub strong { color: var(--ink); font-weight: 600; }
.hero-cta { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: 0.8rem; }
.hero-status {
  margin-top: 1.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}
.status-sq { width: 8px; height: 8px; background: var(--accent); flex-shrink: 0; }

/* Portrait plate */
.plate { position: relative; width: 100%; max-width: 380px; margin-inline: auto; }
.plate-frame {
  position: relative;
  border: 1px solid var(--hair-2);
  padding: 10px;
  background:
    linear-gradient(var(--hair) 1px, transparent 1px) 0 0 / 100% 26px,
    var(--bg-1);
}
.plate-frame img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 18%;
  filter: grayscale(1) contrast(1.04) brightness(0.97);
  transition: filter 0.4s var(--ease);
}
.plate:hover .plate-frame img { filter: grayscale(0.45) contrast(1.03); }
.plate-fallback {
  width: 100%;
  aspect-ratio: 4 / 5;
  display: none;
  place-items: center;
  font-family: var(--mono);
  font-size: 4rem;
  font-weight: 600;
  color: var(--ink-3);
  background: var(--bg-2);
}
/* corner registration ticks (frame real content: the portrait plate) */
.plate-frame::before,
.plate-frame::after {
  content: "";
  position: absolute;
  width: 14px; height: 14px;
  border: 1px solid var(--accent);
  pointer-events: none;
}
.plate-frame::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.plate-frame::after  { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.plate-caption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.7rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

/* ============================================================
   METRICS  -  horizontal data strip (no cards, hairline cells)
   ============================================================ */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--hair);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--hair);
  gap: 1px;
}
.metric { background: var(--bg); padding: clamp(1.4rem, 3vw, 2.2rem) clamp(1.2rem, 2.5vw, 1.8rem); }
.metric-val {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
}
.metric-val .unit { color: var(--accent); }
.metric-label {
  margin-top: 0.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ============================================================
   PROFILE  -  prose + data sidebar
   ============================================================ */
.profile-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.profile-prose p {
  color: var(--ink-2);
  font-size: 1.06rem;
  line-height: 1.8;
  max-width: 60ch;
  margin-bottom: 1.25rem;
  text-wrap: pretty;
}
.profile-prose p strong { color: var(--ink); font-weight: 600; }
.profile-prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.materials { margin-top: 1.8rem; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-2);
  padding: 0.28rem 0.6rem;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.tag:hover { border-color: var(--accent-line); color: var(--ink); }

.facts { border: 1px solid var(--hair); border-radius: var(--r); }
.fact { display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: baseline; padding: 0.9rem 1.1rem; }
.fact + .fact { border-top: 1px solid var(--hair); }
.fact-k { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
.fact-v { font-size: 0.92rem; font-weight: 500; text-align: right; }
.fact-v.live { color: var(--accent); display: inline-flex; align-items: center; gap: 0.45rem; }
.fact-v .status-sq { width: 7px; height: 7px; }

/* ============================================================
   SKILLS  -  asymmetric module grid (BOM datasheet)
   ============================================================ */
.modules { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1rem; }
.module {
  grid-column: span 2;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  padding: 1.4rem;
  background: var(--bg-1);
  position: relative;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
}
.module.lg { grid-column: span 3; }
.module:hover { border-color: var(--accent-line); transform: translateY(-3px); }
.module-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.module-code { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--accent); }
.module-ico { color: var(--ink-2); }
.module-ico svg { width: 22px; height: 22px; }
.module:hover .module-ico { color: var(--accent); }
.module-name { font-size: 1.12rem; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 0.9rem; }
.module-tags { display: flex; flex-wrap: wrap; gap: 0.36rem; }
.module-tags span {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-2);
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.module:hover .module-tags span { color: var(--ink); border-color: var(--hair-2); }

/* ============================================================
   EXPERIENCE  -  revision register on a measured axis
   ============================================================ */
.register { position: relative; padding-left: 3.4rem; }
.register::before {
  content: "";
  position: absolute;
  left: 11px; top: 6px;
  width: 1px; height: calc(100% - 6px);
  background: linear-gradient(to bottom, var(--accent-line), var(--hair) 40%, transparent);
}
.rev { position: relative; padding-bottom: 2rem; }
.rev:last-child { padding-bottom: 0; }
.rev-node {
  position: absolute;
  left: -3.4rem; top: 4px;
  width: 24px; display: grid; place-items: center;
}
.rev-tick { width: 9px; height: 9px; background: var(--bg); border: 1.5px solid var(--ink-3); transform: rotate(45deg); }
.rev.current .rev-tick { background: var(--accent); border-color: var(--accent); }
.rev-axislabel {
  position: absolute;
  left: -3.4rem; top: 26px;
  width: 30px;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}
.rev-card {
  border: 1px solid var(--hair);
  border-left: 2px solid var(--hair);
  border-radius: var(--r);
  padding: 1.3rem 1.5rem;
  background: var(--bg-1);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.rev.current .rev-card { border-left-color: var(--accent); }
.rev-card:hover { border-color: var(--accent-line); transform: translateX(3px); }
.rev-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1.5rem; align-items: baseline; margin-bottom: 0.85rem; }
.rev-co { font-size: 1.12rem; font-weight: 600; letter-spacing: -0.01em; }
.rev-role { font-family: var(--mono); font-size: 0.82rem; color: var(--accent); margin-top: 0.15rem; }
.rev-meta { text-align: right; display: flex; flex-direction: column; gap: 0.2rem; }
.rev-date { font-family: var(--mono); font-size: 0.76rem; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.rev-loc { font-family: var(--mono); font-size: 0.72rem; color: var(--ink-3); }
.rev-tag {
  align-self: flex-end;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent);
  border: 1px solid var(--accent-line);
  border-radius: var(--r);
  padding: 0.1rem 0.45rem;
  margin-bottom: 0.2rem;
}
.rev-list { display: grid; gap: 0.5rem; }
.rev-list li { position: relative; padding-left: 1.2rem; color: var(--ink-2); font-size: 0.92rem; line-height: 1.6; }
.rev-list li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 6px; height: 1px; background: var(--accent); }
.rev-list li strong { color: var(--ink); font-weight: 600; }

/* ============================================================
   PROJECTS  -  technical data sheets
   ============================================================ */
.sheets { display: grid; gap: 1.25rem; }
.sheet {
  border: 1px solid var(--hair);
  border-radius: var(--r);
  background: var(--bg-1);
  overflow: hidden;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.sheet:hover { border-color: var(--accent-line); transform: translateY(-3px); }
.sheet-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 1.5rem;
  align-items: flex-start;
  padding: 1.4rem 1.6rem;
  border-bottom: 1px solid var(--hair);
}
.sheet-dwg { font-family: var(--mono); font-size: 0.74rem; color: var(--accent); letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.sheet-name { font-size: clamp(1.3rem, 2.6vw, 1.9rem); font-weight: 600; letter-spacing: -0.02em; line-height: 1.05; }
.sheet-kicker { font-family: var(--mono); font-size: 0.82rem; color: var(--ink-2); margin-top: 0.4rem; }
.sheet-role {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  border: 1px solid var(--hair);
  border-radius: var(--r);
  padding: 0.3rem 0.6rem;
  white-space: nowrap;
}
.sheet-body { padding: 1.4rem 1.6rem; display: grid; gap: 1.4rem; }
.sheet.featured .sheet-body { grid-template-columns: 1.5fr 1fr; }
.sheet-summary { color: var(--ink-2); font-size: 1rem; line-height: 1.7; max-width: 64ch; text-wrap: pretty; }
.sheet-summary strong { color: var(--ink); font-weight: 600; }
.scope { margin-top: 1.1rem; display: grid; gap: 0.5rem; }
.scope li { position: relative; padding-left: 1.3rem; color: var(--ink-2); font-size: 0.92rem; line-height: 1.6; }
.scope li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 8px; height: 1px; background: var(--accent); }
.scope li strong { color: var(--ink); font-weight: 600; }

.sheet-specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--hair); border: 1px solid var(--hair); border-radius: var(--r); overflow: hidden; align-self: start; }
.spec { background: var(--bg-1); padding: 0.95rem 1.05rem; }
.spec-v { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 1.4rem; font-weight: 600; line-height: 1; }
.spec-l { margin-top: 0.4rem; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-3); }

.bom { padding: 1.1rem 1.6rem 1.5rem; border-top: 1px solid var(--hair); }
.bom-label { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 0.7rem; }
.bom-tags { display: flex; flex-wrap: wrap; gap: 0.36rem; }
.bom-tags span { font-family: var(--mono); font-size: 0.74rem; color: var(--ink-2); padding: 0.22rem 0.55rem; border: 1px solid var(--hair); border-radius: var(--r); }
.sheet-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.2rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  width: max-content;
}
.sheet-link svg { width: 15px; height: 15px; }
.sheet-link:hover { text-decoration: underline; text-underline-offset: 3px; }

/* AI appendix register */
.appendix-label { margin-top: 3rem; margin-bottom: 1.1rem; display: flex; align-items: center; gap: 1rem; }
.appendix-label h3 { font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-2); white-space: nowrap; }
.appendix-label .sec-rule { background: var(--hair); }
.appendix { border: 1px solid var(--hair); border-radius: var(--r); overflow: hidden; }
.apx { display: grid; grid-template-columns: auto 1fr; gap: 1.2rem; padding: 1.15rem 1.4rem; align-items: start; transition: background 0.2s var(--ease); }
.apx + .apx { border-top: 1px solid var(--hair); }
.apx:hover { background: var(--bg-2); }
.apx-code { font-family: var(--mono); font-size: 0.72rem; color: var(--accent); padding-top: 0.15rem; white-space: nowrap; }
.apx-name { font-weight: 600; font-size: 1rem; }
.apx-kind { font-family: var(--mono); font-size: 0.7rem; color: var(--ink-3); }
.apx-desc { color: var(--ink-2); font-size: 0.92rem; line-height: 1.6; margin-top: 0.3rem; max-width: 70ch; }

/* ============================================================
   EDUCATION  -  inline record
   ============================================================ */
.edu { display: grid; grid-template-columns: auto 1fr auto; gap: 1.5rem; align-items: center; border: 1px solid var(--hair); border-left: 2px solid var(--accent); border-radius: var(--r); padding: 1.4rem 1.6rem; background: var(--bg-1); }
.edu-ico { color: var(--accent); }
.edu-ico svg { width: 26px; height: 26px; }
.edu-degree { font-weight: 600; font-size: 1.05rem; }
.edu-school { font-family: var(--mono); font-size: 0.85rem; color: var(--ink-2); margin-top: 0.25rem; }
.edu-year { font-family: var(--mono); font-size: 0.8rem; color: var(--ink-3); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ============================================================
   CONTACT + TITLE BLOCK
   ============================================================ */
.contact { padding-bottom: 0; }
.contact-head { max-width: 22ch; }
.contact-head h2 { font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 600; letter-spacing: -0.03em; line-height: 1.02; }
.contact-head p { margin-top: 1.1rem; color: var(--ink-2); font-size: 1.06rem; line-height: 1.7; max-width: 52ch; text-wrap: pretty; }
.contact-actions { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.8rem; }

.titleblock {
  margin-top: clamp(3rem, 6vw, 5rem);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  border: 1px solid var(--hair-2);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--hair);
  gap: 1px;
}
.tb-cell { background: var(--bg); padding: 1rem 1.2rem; }
.tb-k { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 0.4rem; }
.tb-v { font-family: var(--mono); font-size: 0.9rem; font-weight: 500; color: var(--ink); word-break: break-word; }
.tb-v a:hover { color: var(--accent); }
.tb-v.live { color: var(--accent); display: inline-flex; align-items: center; gap: 0.45rem; }
.tb-v .status-sq { width: 7px; height: 7px; }
.tb-span-3 { grid-column: span 3; }
.tb-span-4 { grid-column: span 4; }
.tb-span-5 { grid-column: span 5; }
.tb-span-6 { grid-column: span 6; }
.tb-span-7 { grid-column: span 7; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: center;
  padding-block: 2.2rem;
  margin-top: 2.5rem;
  border-top: 1px solid var(--hair);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-3);
}
.footer-bottom a { display: inline-flex; align-items: center; gap: 0.4rem; }
.footer-bottom a:hover { color: var(--accent); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .plate { order: -1; max-width: 300px; margin-inline: 0; }
  .profile-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .modules { grid-template-columns: repeat(4, 1fr); }
  .module, .module.lg { grid-column: span 2; }
  .sheet.featured .sheet-body { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: block; }
  .nav.open .nav-links {
    display: flex;
    position: absolute;
    inset: 64px 0 auto 0;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
    background: var(--bg-1);
    border-bottom: 1px solid var(--hair);
    padding: 0.5rem var(--pad) 1.25rem;
  }
  .nav.open .nav-links a { padding: 0.85rem 0; border-bottom: 1px solid var(--hair); font-size: 0.95rem; }
  .nav.open .nav-links a::after { display: none; }

  .metrics { grid-template-columns: repeat(2, 1fr); }
  .modules { grid-template-columns: 1fr; }
  .module, .module.lg { grid-column: span 1; }
  .sheet-specs { grid-template-columns: repeat(2, 1fr); }
  .register { padding-left: 2.6rem; }
  .rev-node { left: -2.6rem; }
  .rev-axislabel { left: -2.6rem; width: 24px; }
  .register::before { left: 9px; }
  .edu { grid-template-columns: auto 1fr; }
  .edu-year { grid-column: 2; text-align: left; margin-top: 0.3rem; }

  .titleblock { grid-template-columns: repeat(2, 1fr); }
  .tb-span-3, .tb-span-4, .tb-span-5, .tb-span-6, .tb-span-7 { grid-column: span 1; }
  .tb-span-full-m { grid-column: span 2; }
}

@media (max-width: 420px) {
  .metrics { grid-template-columns: 1fr; }
  .hero-cta .btn { flex: 1; justify-content: center; }
  .sheet-specs { grid-template-columns: 1fr; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .draw { transform: none; }
  .plate:hover .plate-frame img { filter: grayscale(1) contrast(1.04) brightness(0.97); }
}