/* ============================================================
   Sergey Kasatov · personal site v4 · "The Engineering Drawing"
   Design thesis: the site is a set of engineering drawing sheets
   documenting one part: S. KASATOV, DATA ANALYST.
   Paper theme (default) = technical paper; dark theme = blueprint.
   No gradients, no glass, no rounded pills. Hairlines, stamps,
   dimension lines, mono annotations, one redline accent.
   ============================================================ */

/* ---------- Fonts (self-hosted, GDPR-clean) ---------- */
@font-face { font-family:'Saira Condensed'; font-style:normal; font-weight:600; font-display:swap;
  src:url(../assets/fonts/saira-cond-600-latin.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2212; }
@font-face { font-family:'Saira Condensed'; font-style:normal; font-weight:600; font-display:swap;
  src:url(../assets/fonts/saira-cond-600-latin-ext.woff2) format('woff2');
  unicode-range:U+0100-024F,U+1E00-1EFF,U+20A0-20AB,U+20AD-20CF; }
@font-face { font-family:'Saira Condensed'; font-style:normal; font-weight:700; font-display:swap;
  src:url(../assets/fonts/saira-cond-700-latin.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2212; }
@font-face { font-family:'Saira Condensed'; font-style:normal; font-weight:700; font-display:swap;
  src:url(../assets/fonts/saira-cond-700-latin-ext.woff2) format('woff2');
  unicode-range:U+0100-024F,U+1E00-1EFF,U+20A0-20AB,U+20AD-20CF; }
@font-face { font-family:'IBM Plex Sans'; font-style:normal; font-weight:400; font-display:swap;
  src:url(../assets/fonts/plex-sans-400-latin.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2212; }
@font-face { font-family:'IBM Plex Sans'; font-style:normal; font-weight:400; font-display:swap;
  src:url(../assets/fonts/plex-sans-400-latin-ext.woff2) format('woff2');
  unicode-range:U+0100-024F,U+1E00-1EFF,U+20A0-20AB,U+20AD-20CF; }
@font-face { font-family:'IBM Plex Sans'; font-style:italic; font-weight:400; font-display:swap;
  src:url(../assets/fonts/plex-sans-400i-latin.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2212; }
@font-face { font-family:'IBM Plex Sans'; font-style:italic; font-weight:400; font-display:swap;
  src:url(../assets/fonts/plex-sans-400i-latin-ext.woff2) format('woff2');
  unicode-range:U+0100-024F,U+1E00-1EFF,U+20A0-20AB,U+20AD-20CF; }
@font-face { font-family:'IBM Plex Sans'; font-style:normal; font-weight:600; font-display:swap;
  src:url(../assets/fonts/plex-sans-600-latin.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2212; }
@font-face { font-family:'IBM Plex Sans'; font-style:normal; font-weight:600; font-display:swap;
  src:url(../assets/fonts/plex-sans-600-latin-ext.woff2) format('woff2');
  unicode-range:U+0100-024F,U+1E00-1EFF,U+20A0-20AB,U+20AD-20CF; }
@font-face { font-family:'IBM Plex Mono'; font-style:normal; font-weight:400; font-display:swap;
  src:url(../assets/fonts/plex-mono-400.woff2) format('woff2'); }
@font-face { font-family:'IBM Plex Mono'; font-style:normal; font-weight:500; font-display:swap;
  src:url(../assets/fonts/plex-mono-500.woff2) format('woff2'); }
@font-face { font-family:'IBM Plex Mono'; font-style:normal; font-weight:600; font-display:swap;
  src:url(../assets/fonts/plex-mono-600.woff2) format('woff2'); }
@font-face { font-family:'Caveat'; font-style:normal; font-weight:600; font-display:swap;
  src:url(../assets/fonts/caveat-600-latin.woff2) format('woff2'); }

/* ---------- Tokens ---------- */
:root {
  --paper:#f2efe9;
  --paper-2:#ece8df;
  --paper-3:#e4dfd3;
  --ink:#1c1b17;
  --ink-2:#585245;
  --line:#a8a190;
  --line-soft:#cfc9ba;
  --accent:#c2311f;
  --accent-soft:rgba(194,49,31,.08);
  --grid-minor:rgba(28,27,23,.05);
  --grid-major:rgba(28,27,23,.10);
  --frame:rgba(28,27,23,.65);
  --shadow:rgba(28,27,23,.9);

  --f-display:'Saira Condensed','Arial Narrow',sans-serif;
  --f-body:'IBM Plex Sans',system-ui,sans-serif;
  --f-mono:'IBM Plex Mono',ui-monospace,'Cascadia Mono',monospace;
  --f-note:'Caveat',cursive;

  --container:1880px;
  --pad:clamp(1.25rem, 3.4vw, 4.5rem);
  --frame-inset:10px;

  --fs-hero:clamp(4rem, 11.5vw, 13rem);
  --fs-title:clamp(2.1rem, 3.4vw, 4rem);
  --fs-lede:clamp(1.02rem, 1.15vw, 1.3rem);
  --fs-body:clamp(.98rem, 1.02vw, 1.14rem);
  --fs-mono:clamp(.72rem, .78vw, .84rem);
}
[data-theme="blueprint"] {
  --paper:#0d1f33;
  --paper-2:#122740;
  --paper-3:#17304d;
  --ink:#dbe7f3;
  --ink-2:#93acc3;
  --line:#3f5d7d;
  --line-soft:#26445f;
  --accent:#ff6a4d;
  --accent-soft:rgba(255,106,77,.10);
  --grid-minor:rgba(219,231,243,.045);
  --grid-major:rgba(219,231,243,.09);
  --frame:rgba(219,231,243,.55);
  --shadow:rgba(0,0,0,.9);
}

/* ---------- Reset / base ---------- */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
html, body { overflow-x:clip; }
@view-transition { navigation: auto; }
body {
  font-family:var(--f-body);
  font-size:var(--fs-body);
  line-height:1.65;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px),
    linear-gradient(var(--grid-minor) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-minor) 1px, transparent 1px);
  background-size:80px 80px, 80px 80px, 16px 16px, 16px 16px;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
img { max-width:100%; height:auto; display:block; }
a { color:inherit; }
p, blockquote, .now-list li { text-align: justify; text-justify: inter-word; }
ul,ol { list-style:none; }
button { font:inherit; color:inherit; background:none; border:none; cursor:pointer; }
::selection { background:var(--accent); color:var(--paper); }

.container { max-width:var(--container); margin-inline:auto; padding-inline:var(--pad); }
.mono { font-family:var(--f-mono); }
.sr-defs { position:absolute; width:0; height:0; overflow:hidden; }
.ic { width:1.05em; height:1.05em; display:inline-block; vertical-align:-.16em; fill:none; }
.skip-link { position:absolute; left:-9999px; top:0; background:var(--ink); color:var(--paper); padding:.6rem 1rem; z-index:200; font-family:var(--f-mono); }
.skip-link:focus { left:var(--frame-inset); top:var(--frame-inset); }

/* ---------- Sheet frame (owns the canvas edges) ---------- */
.sheet-frame { position:fixed; inset:var(--frame-inset); border:1.5px solid var(--frame); pointer-events:none; z-index:90; }
.sheet-frame::before, .sheet-frame::after {
  content:""; position:absolute; inset:-7px; pointer-events:none;
  background:
    linear-gradient(var(--frame),var(--frame)) top left / 14px 1.5px no-repeat,
    linear-gradient(var(--frame),var(--frame)) top left / 1.5px 14px no-repeat,
    linear-gradient(var(--frame),var(--frame)) top right / 14px 1.5px no-repeat,
    linear-gradient(var(--frame),var(--frame)) top right / 1.5px 14px no-repeat,
    linear-gradient(var(--frame),var(--frame)) bottom left / 14px 1.5px no-repeat,
    linear-gradient(var(--frame),var(--frame)) bottom left / 1.5px 14px no-repeat,
    linear-gradient(var(--frame),var(--frame)) bottom right / 14px 1.5px no-repeat,
    linear-gradient(var(--frame),var(--frame)) bottom right / 1.5px 14px no-repeat;
}
.sheet-frame .zone {
  position:absolute; font-family:var(--f-mono); font-size:.58rem; font-weight:500;
  color:var(--ink-2); letter-spacing:.08em; line-height:1;
}
.sheet-frame .zone.zt { top:-8px; transform:translateX(-50%); background:var(--paper); padding-inline:4px; }
.sheet-frame .zone.zb { bottom:-8px; transform:translateX(-50%); background:var(--paper); padding-inline:4px; }
.sheet-frame .zone.zl { left:-6px; transform:translateY(-50%); background:var(--paper); padding-block:3px; }
.sheet-frame .zone.zr { right:-6px; transform:translateY(-50%); background:var(--paper); padding-block:3px; }

/* ---------- Header ---------- */
.site-header {
  position:sticky; top:0; z-index:80;
  background:var(--paper);
  border-bottom:1.5px solid var(--frame);
}
.nav { display:flex; align-items:center; gap:1.6rem; min-height:74px; }
.brand { display:flex; align-items:center; gap:.8rem; text-decoration:none; }
.brand-mark { width:40px; height:46px; color:var(--ink); flex:none; }
.brand-mark .datum-tri { fill:var(--accent); stroke:none; }
.brand-text { display:flex; flex-direction:column; line-height:1.05; }
.brand-name { font-family:var(--f-display); font-weight:700; font-size:1.5rem; letter-spacing:.055em; text-transform:uppercase; }
.brand-sub { font-family:var(--f-mono); font-size:.6rem; letter-spacing:.34em; color:var(--ink-2); text-transform:uppercase; }
.nav-links { display:flex; gap:1.9rem; margin-left:auto; }
.nav-links a {
  font-family:var(--f-mono); font-size:var(--fs-mono); font-weight:500;
  letter-spacing:.14em; text-transform:uppercase; text-decoration:none;
  color:var(--ink-2); padding:.45rem 0; border-bottom:2px solid transparent;
}
.nav-links a .n { color:var(--accent); margin-right:.45em; font-weight:600; }
.nav-links a:hover { color:var(--ink); }
.nav-links a[aria-current="page"] { color:var(--ink); border-bottom-color:var(--accent); }
.nav-actions { display:flex; align-items:center; gap:1rem; }
.theme-toggle {
  width:42px; height:42px; display:grid; place-items:center;
  border:1.5px solid var(--line); color:var(--ink-2);
}
.theme-toggle:hover { color:var(--ink); border-color:var(--ink); }
.theme-toggle .ic { width:1.15rem; height:1.15rem; }
[data-theme="paper"] .icon-paper, :root:not([data-theme="blueprint"]) .icon-paper { display:none; }
[data-theme="blueprint"] .icon-blueprint { display:none; }
[data-theme="blueprint"] .icon-paper { display:block; }
.nav-burger { display:none; width:42px; height:42px; border:1.5px solid var(--line); place-items:center; }

/* ---------- Buttons (press-plate, hard shadow, square) ---------- */
.btn {
  display:inline-flex; align-items:center; gap:.6em;
  font-family:var(--f-mono); font-size:.82rem; font-weight:600;
  letter-spacing:.12em; text-transform:uppercase; text-decoration:none;
  padding:.95em 1.7em; border:1.5px solid var(--ink);
  color:var(--ink); background:var(--paper);
  transition:transform .16s ease, box-shadow .16s ease;
}
.btn:hover { transform:translate(-2px,-2px); box-shadow:4px 4px 0 var(--accent); }
.btn:active { transform:translate(0,0); box-shadow:1px 1px 0 var(--accent); }
.btn-primary { background:var(--ink); color:var(--paper); }
.btn-sm { padding:.7em 1.2em; font-size:.74rem; }

/* ---------- Annotations, labels, stamps ---------- */
.anno { font-family:var(--f-mono); font-size:var(--fs-mono); font-weight:500; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-2); }
.anno b, .anno strong { color:var(--ink); font-weight:600; }
.anno .ax { color:var(--accent); }
.note { font-family:var(--f-note); font-size:clamp(1.15rem,1.3vw,1.5rem); color:var(--accent); line-height:1.2; }

.stamp {
  display:inline-block; position:relative;
  font-family:var(--f-mono); font-weight:600; text-transform:uppercase;
  color:var(--accent); border:2.5px solid var(--accent);
  padding:.55em .95em; letter-spacing:.14em; line-height:1.35;
  transform:rotate(-5deg); background:var(--paper);
  box-shadow:inset 0 0 0 1.5px var(--paper), inset 0 0 0 2.5px var(--accent);
  font-size:clamp(.72rem, .9vw, .95rem); text-align:center;
}
.stamp small { display:block; font-size:.72em; letter-spacing:.22em; font-weight:500; }
.reveal-stamp { opacity:0; transform:rotate(-5deg) scale(1.6); }
.reveal-stamp.in { opacity:1; transform:rotate(-5deg) scale(1); transition:transform .28s cubic-bezier(.2,1.6,.4,1), opacity .18s ease; }

/* ---------- Dimension lines ---------- */
.dim { display:block; overflow:visible; }
.dim line, .dim path, .dim polyline { stroke:var(--accent); stroke-width:1.5; fill:none; }
.dim .thin { stroke:var(--line); stroke-width:1; }
.dim text { fill:var(--accent); font-family:var(--f-mono); font-weight:500; letter-spacing:.12em; text-transform:uppercase; }
.draw path, .draw line, .draw polyline { transition:stroke-dashoffset 1.1s ease .15s; }

/* ---------- Hero ---------- */
.hero { position:relative; padding-top:clamp(2.2rem,4.5vh,4.5rem); }
.hero-annos { display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; margin-bottom:clamp(1.6rem,3.5vh,3.2rem); }
.hero-grid { display:grid; grid-template-columns:minmax(0,1.55fr) minmax(320px,1fr); gap:clamp(2rem,4vw,5.5rem); align-items:end; }
.hero-title {
  font-family:var(--f-display); font-weight:700; text-transform:uppercase;
  font-size:var(--fs-hero); line-height:.88; letter-spacing:.01em;
  margin:.2em 0 .08em;
}
.hero-title .l2 { color:transparent; -webkit-text-stroke:2px var(--ink); }
.hero-dim { width:min(100%, 46ch); margin:.6rem 0 1.6rem; }
.hero-role { margin-bottom:1.1rem; }
.hero-role .ax { font-weight:600; }
.hero-lede { font-size:clamp(1.15rem,1.5vw,1.65rem); line-height:1.45; max-width:34ch; margin-bottom:.9rem; }
.hero-lede em { font-style:italic; border-bottom:2px solid var(--accent); }
.hero-sub { color:var(--ink-2); max-width:52ch; margin-bottom:2rem; }
.hero-actions { display:flex; gap:1rem; flex-wrap:wrap; margin-bottom:1.8rem; }
.hero-links { display:flex; gap:1.6rem; flex-wrap:wrap; }
.hero-links a { font-family:var(--f-mono); font-size:var(--fs-mono); letter-spacing:.12em; text-transform:uppercase; text-decoration:none; color:var(--ink-2); display:inline-flex; align-items:center; gap:.5em; }
.hero-links a:hover { color:var(--accent); }

.fig-card { border:1.5px solid var(--line); background:var(--paper-2); position:relative; }
.fig-head { display:flex; justify-content:space-between; gap:1rem; padding:.65rem .9rem; border-bottom:1px solid var(--line-soft); }
.fig-body { padding:1.1rem .9rem .9rem; position:relative; }
.fig-card .spc { width:100%; height:auto; }
.spc .grid-l { stroke:var(--line-soft); stroke-width:1; }
.spc .limit { stroke:var(--ink-2); stroke-width:1; stroke-dasharray:5 4; }
.spc .run { stroke:var(--ink); stroke-width:1.8; fill:none; }
.spc .pt { fill:var(--ink); }
.spc .pt-hot { fill:var(--accent); }
.spc text { font-family:var(--f-mono); font-size:8.5px; letter-spacing:.08em; fill:var(--ink-2); text-transform:uppercase; }
.fig-note { position:absolute; right:.9rem; bottom:.5rem; transform:rotate(-3deg); }
.hero-stamp { position:absolute; right:clamp(.5rem,2vw,2.5rem); top:-1.6rem; z-index:5; }
.hero-right { position:relative; display:flex; flex-direction:column; gap:1.4rem; }

/* ---------- Title block (Zeichnungskopf) ---------- */
.title-block { margin-top:clamp(2.5rem,5vh,4.5rem); border:1.5px solid var(--frame); background:var(--paper); display:grid; grid-template-columns:auto 1fr repeat(4,auto); }
.tb-cell { padding:.7rem 1.1rem; border-left:1px solid var(--line-soft); display:flex; flex-direction:column; gap:.15rem; justify-content:center; }
.tb-cell:first-child { border-left:none; display:grid; place-items:center; padding:.55rem .9rem; }
.tb-cell .k { font-family:var(--f-mono); font-size:.58rem; font-weight:500; letter-spacing:.22em; text-transform:uppercase; color:var(--ink-2); }
.tb-cell .v { font-family:var(--f-mono); font-size:.85rem; font-weight:600; letter-spacing:.08em; text-transform:uppercase; }
.tb-cell .v .ax { color:var(--accent); }
.tb-mark { width:34px; height:40px; color:var(--ink); }
.tb-mark .datum-tri { fill:var(--accent); }
.proj-symbol { width:44px; height:22px; }
.proj-symbol circle, .proj-symbol path { stroke:var(--ink-2); stroke-width:1.3; fill:none; }

/* ---------- Spec strip (marquee of documented facts) ---------- */
.spec-strip { border-block:1.5px solid var(--frame); margin-top:clamp(2.5rem,6vh,5rem); overflow:hidden; background:var(--paper-2); }
.spec-track { display:flex; width:max-content; animation:spec-scroll 46s linear infinite; }
.spec-row { display:flex; }
.spec-item { font-family:var(--f-mono); font-size:var(--fs-mono); font-weight:500; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-2); padding:.85rem 0; white-space:nowrap; }
.spec-item::after { content:"//"; color:var(--accent); margin-inline:2.2rem; }
@keyframes spec-scroll { from { transform:translateX(0); } to { transform:translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding-block:clamp(3.5rem,8vh,7.5rem); }
.section.tight { padding-block:clamp(2.5rem,5.5vh,5rem); }
.section-head { max-width:1000px; margin-bottom:clamp(2.2rem,4.5vh,4rem); }
.section-eyebrow { font-family:var(--f-mono); font-size:var(--fs-mono); font-weight:600; letter-spacing:.24em; text-transform:uppercase; color:var(--accent); margin-bottom:.9rem; }
.section-eyebrow::before { content:""; display:inline-block; width:2.2rem; height:1.5px; background:var(--accent); vertical-align:.28em; margin-right:.8rem; }
.section-title { font-family:var(--f-display); font-weight:700; text-transform:uppercase; font-size:var(--fs-title); line-height:1.02; letter-spacing:.012em; margin-bottom:.7rem; }
.section-lede { color:var(--ink-2); font-size:var(--fs-lede); max-width:62ch; }

/* ---------- Stats: measured values ---------- */
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); border:1.5px solid var(--frame); background:var(--paper-2); }
.stat { padding:clamp(1.4rem,2.4vw,2.6rem) clamp(1.2rem,2vw,2.4rem); border-left:1px solid var(--line-soft); position:relative; }
.stat:first-child { border-left:none; }
.stat::before { content:"[" counter(stat-i) "]"; }
.stats-grid { counter-reset:stat-i; }
.stat { counter-increment:stat-i; }
.stat::before { position:absolute; top:.7rem; right:.9rem; font-family:var(--f-mono); font-size:.62rem; color:var(--ink-2); letter-spacing:.1em; }
.stat .value { font-family:var(--f-display); font-weight:700; font-size:clamp(2.6rem,4.2vw,4.6rem); line-height:1; letter-spacing:.01em; }
.stat .value .u { font-size:.45em; color:var(--accent); font-weight:600; margin-left:.08em; }
.stat .label { font-family:var(--f-mono); font-size:var(--fs-mono); letter-spacing:.1em; text-transform:uppercase; color:var(--ink-2); margin-top:.7rem; line-height:1.7; }

/* ---------- Callouts (numbered balloons) ---------- */
.callouts { display:grid; grid-template-columns:repeat(3,1fr); gap:0; border:1.5px solid var(--frame); }
.callout { padding:clamp(1.6rem,2.6vw,2.8rem); border-left:1px solid var(--line-soft); background:var(--paper); position:relative; }
.callout:first-child { border-left:none; }
.balloon {
  display:inline-grid; place-items:center; width:2.6rem; height:2.6rem;
  border:1.5px solid var(--ink); border-radius:50%;
  font-family:var(--f-mono); font-weight:600; font-size:1rem; margin-bottom:1.2rem;
  position:relative;
}
.balloon::after { content:""; position:absolute; left:50%; top:100%; width:1.5px; height:1rem; background:var(--ink); }
.callout h3 { font-family:var(--f-display); font-weight:600; text-transform:uppercase; font-size:clamp(1.25rem,1.5vw,1.7rem); letter-spacing:.02em; margin:1rem 0 .6rem; }
.callout p { color:var(--ink-2); }

/* ---------- Cards: project detail views ---------- */
.featured-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(1.2rem,1.8vw,2rem); }
.projects-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(1.2rem,1.8vw,2rem); }
.detail-card { border:1.5px solid var(--line); background:var(--paper-2); display:flex; flex-direction:column; transition:transform .16s ease, box-shadow .16s ease; position:relative; }
.detail-card:hover { transform:translate(-3px,-3px); box-shadow:5px 5px 0 var(--shadow); border-color:var(--ink); }
.dc-head { display:flex; justify-content:space-between; align-items:center; gap:.8rem; padding:.6rem 1rem; border-bottom:1px solid var(--line-soft); }
.dc-head .pos { color:var(--accent); font-weight:600; }
.badge-live { display:inline-flex; align-items:center; gap:.45em; font-family:var(--f-mono); font-size:.62rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--accent); border:1px solid var(--accent); padding:.22em .6em; }
.badge-live .dot { width:.45em; height:.45em; border-radius:50%; background:var(--accent); animation:pulse 1.8s ease infinite; }
@keyframes pulse { 50% { opacity:.35; } }
.dc-body { padding:1.3rem 1.2rem 1.4rem; display:flex; flex-direction:column; gap:1rem; flex:1; }
.dc-body h3 { font-family:var(--f-display); font-weight:600; text-transform:uppercase; font-size:clamp(1.3rem,1.6vw,1.75rem); letter-spacing:.02em; line-height:1.1; }
.dc-metric { display:flex; align-items:baseline; gap:.8rem; border-block:1px solid var(--line-soft); padding-block:.7rem; }
.dc-metric .num { font-family:var(--f-display); font-weight:700; font-size:clamp(2rem,2.6vw,2.9rem); line-height:1; }
.dc-metric .cap { font-family:var(--f-mono); font-size:.68rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-2); }
.dc-body p { color:var(--ink-2); font-size:.95em; flex:1; }
.metric-row { display:flex; flex-wrap:wrap; gap:.5rem; }
.metric { font-family:var(--f-mono); font-size:.7rem; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-2); border:1px solid var(--line-soft); padding:.3em .65em; }
.metric b { color:var(--ink); font-weight:600; }
.tag-row { display:flex; flex-wrap:wrap; gap:.45rem; }
.tag { font-family:var(--f-mono); font-size:.66rem; font-weight:500; letter-spacing:.1em; text-transform:uppercase; background:var(--paper-3); padding:.32em .7em; color:var(--ink-2); }
.dc-links { display:flex; gap:1.3rem; flex-wrap:wrap; padding-top:.4rem; border-top:1px solid var(--line-soft); }
.dc-links a { font-family:var(--f-mono); font-size:.74rem; font-weight:600; letter-spacing:.1em; text-transform:uppercase; text-decoration:none; color:var(--ink); display:inline-flex; align-items:center; gap:.5em; }
.dc-links a:hover { color:var(--accent); }
.section-cta { margin-top:clamp(2rem,4vh,3.2rem); display:flex; justify-content:center; }

/* ---------- BOM table ---------- */
.bom { width:100%; border:1.5px solid var(--frame); border-collapse:collapse; background:var(--paper); }
.bom th { font-family:var(--f-mono); font-size:.66rem; font-weight:600; letter-spacing:.22em; text-transform:uppercase; color:var(--ink-2); text-align:left; padding:.75rem 1.1rem; border-bottom:1.5px solid var(--frame); background:var(--paper-2); }
.bom td { padding:.85rem 1.1rem; border-bottom:1px solid var(--line-soft); font-size:.95em; vertical-align:middle; }
.bom tr:last-child td { border-bottom:none; }
.bom .pos { font-family:var(--f-mono); color:var(--accent); font-weight:600; white-space:nowrap; }
.bom .name a { font-weight:600; text-decoration:none; border-bottom:1px solid var(--line); }
.bom .name a:hover { color:var(--accent); border-color:var(--accent); }
.bom .qty { font-family:var(--f-mono); font-size:.8em; letter-spacing:.06em; text-transform:uppercase; color:var(--ink-2); white-space:nowrap; }
.bom .qty b { color:var(--ink); }
.bom tr:hover td { background:var(--paper-2); }

/* ---------- Inspection report (quotes) ---------- */
.inspection { border:1.5px solid var(--line); background:var(--paper-2); position:relative; padding:0; }
.insp-head { display:flex; justify-content:space-between; gap:1rem; padding:.6rem 1rem; border-bottom:1px solid var(--line-soft); flex-wrap:wrap; }
.insp-body { padding:clamp(1.4rem,2.4vw,2.4rem); }
.inspection blockquote { font-size:clamp(1.05rem,1.35vw,1.45rem); line-height:1.55; font-style:italic; max-width:72ch; }
.insp-author { margin-top:1.4rem; display:flex; flex-direction:column; gap:.15rem; }
.insp-author b { font-weight:600; }
.insp-author span { font-family:var(--f-mono); font-size:.74rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-2); }
.insp-note { position:absolute; right:clamp(1rem,3vw,3rem); top:-1rem; transform:rotate(3deg); }
.insp-more { display:inline-flex; align-items:center; gap:.5em; margin-top:1.6rem; font-family:var(--f-mono); font-size:.78rem; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:var(--ink); text-decoration:none; border-bottom:1.5px solid var(--accent); padding-bottom:.2em; }
.insp-more:hover { color:var(--accent); }
.quotes-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:clamp(1.2rem,1.8vw,2rem); }
.quotes-grid .inspection.wide { grid-column:1 / -1; }
.quotes-foot { margin-top:1.8rem; color:var(--ink-2); font-size:.95em; }
.quotes-foot a { color:var(--ink); }

/* ---------- Approval block (CTA) ---------- */
.approval { border:1.5px solid var(--frame); background:var(--paper-2); padding:clamp(2.2rem,4.5vw,4.5rem); position:relative; display:grid; grid-template-columns:minmax(0,1.6fr) auto; gap:2.5rem; align-items:center; }
.approval h2 { font-family:var(--f-display); font-weight:700; text-transform:uppercase; font-size:clamp(1.8rem,3vw,3.4rem); line-height:1.02; margin-bottom:.8rem; }
.approval p { color:var(--ink-2); max-width:62ch; margin-bottom:1.6rem; }
.approval .hero-actions { margin-bottom:0; }
.approval-side { display:flex; flex-direction:column; align-items:center; gap:1rem; }

/* ---------- Footer ---------- */
.site-footer { border-top:1.5px solid var(--frame); background:var(--paper-2); margin-top:clamp(3rem,7vh,6rem); }
.foot-grid { display:grid; grid-template-columns:minmax(0,1.6fr) auto auto; gap:clamp(2rem,4vw,6rem); padding-block:clamp(2.2rem,4.5vh,4rem); }
.foot-brand p { color:var(--ink-2); max-width:44ch; margin-top:1rem; font-size:.95em; }
.foot-col h4 { font-family:var(--f-mono); font-size:.66rem; font-weight:600; letter-spacing:.24em; text-transform:uppercase; color:var(--accent); margin-bottom:1rem; }
.foot-col a { display:block; text-decoration:none; color:var(--ink-2); padding-block:.28rem; font-size:.95em; }
.foot-col a:hover { color:var(--ink); }
.foot-bottom { border-top:1px solid var(--line-soft); padding-block:1rem 1.4rem; display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; font-family:var(--f-mono); font-size:.68rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-2); }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { padding-top:clamp(2.5rem,6vh,5rem); }
.page-hero .hero-annos { margin-bottom:clamp(1.4rem,3vh,2.6rem); }
.page-title { font-family:var(--f-display); font-weight:700; text-transform:uppercase; font-size:clamp(2.8rem,6.5vw,7.5rem); line-height:.92; letter-spacing:.012em; margin-bottom:1rem; }
.page-title .hl { color:transparent; -webkit-text-stroke:1.5px var(--ink); }

/* ---------- Filters ---------- */
.filters { display:flex; gap:.6rem; flex-wrap:wrap; margin-bottom:clamp(1.8rem,3.5vh,3rem); }
.filter-btn { font-family:var(--f-mono); font-size:.74rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-2); border:1.5px solid var(--line); padding:.6em 1.2em; }
.filter-btn:hover { color:var(--ink); border-color:var(--ink); }
.filter-btn.active { background:var(--ink); color:var(--paper); border-color:var(--ink); }
.projects-foot { margin-top:2rem; color:var(--ink-2); }
.projects-foot a { color:var(--ink); }
.card-hidden { display:none; }

/* ---------- About: figure / portrait ---------- */
.about-grid { display:grid; grid-template-columns:minmax(300px,1.25fr) minmax(0,1.45fr); gap:clamp(2rem,4.5vw,5.5rem); align-items:stretch; }
.about-grid > .reveal { height:100%; display:flex; flex-direction:column; }
.figure { position:relative; border:1.5px solid var(--frame); background:var(--paper-2); padding:1rem; height:100%; display:flex; flex-direction:column; justify-content:space-between; box-sizing:border-box; }
.figure img { filter:contrast(1.03); border:1px solid var(--line-soft); flex:1; height:100%; object-fit:cover; }
[data-theme="blueprint"] .figure img { filter:contrast(1.03) brightness(.95); }
.figure figcaption { display:flex; justify-content:space-between; gap:.8rem; padding-top:.85rem; flex-wrap:wrap; }
.fig-ticks { position:absolute; inset:0; pointer-events:none; }
.about-copy p { margin-bottom:1.2rem; max-width:none; }
.about-copy strong { font-weight:600; }
.aside-row { display:grid; grid-template-columns:1.5fr 1fr; gap:clamp(1.2rem,1.8vw,2rem); margin-top:2rem; align-items:start; }
.aside-card { border:1.5px solid var(--line); background:var(--paper-2); padding:1.4rem; }
.aside-card h3 { font-family:var(--f-mono); font-size:.72rem; font-weight:600; letter-spacing:.22em; text-transform:uppercase; color:var(--accent); margin-bottom:1rem; }
.now-list li { display:flex; gap:.8rem; padding-block:.5rem; font-size:.94em; }
.now-list b { font-weight:600; }
.now-dot { flex:none; width:.6rem; height:.6rem; margin-top:.5rem; background:var(--accent); }
.aside-note { font-family:var(--f-mono); font-size:.64rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-2); margin-top:.8rem; }
.lang-row { display:flex; justify-content:space-between; border-bottom:1px solid var(--line-soft); padding-block:.55rem; font-size:.94em; }
.lang-row:last-child { border-bottom:none; }
.lang-row .level { font-family:var(--f-mono); font-size:.78em; letter-spacing:.12em; text-transform:uppercase; color:var(--accent); font-weight:600; }

/* ---------- Revision history ---------- */
.rev-table { width:100%; border:1.5px solid var(--frame); border-collapse:collapse; background:var(--paper); margin-bottom:clamp(2.5rem,5vh,4rem); }
.rev-table th { font-family:var(--f-mono); font-size:.64rem; font-weight:600; letter-spacing:.22em; text-transform:uppercase; color:var(--ink-2); text-align:left; padding:.7rem 1.1rem; border-bottom:1.5px solid var(--frame); background:var(--paper-2); }
.rev-table td { padding:.75rem 1.1rem; border-bottom:1px solid var(--line-soft); font-size:.94em; }
.rev-table tr:last-child td { border-bottom:none; }
.rev-table .rev { font-family:var(--f-mono); font-weight:600; color:var(--accent); }
.rev-table .date { font-family:var(--f-mono); font-size:.85em; color:var(--ink-2); white-space:nowrap; }
.rev-table tr.current td { background:var(--accent-soft); }

/* ---------- Experience detail views ---------- */
.xp-list { display:flex; flex-direction:column; gap:clamp(1.4rem,2.4vh,2.2rem); }
.xp-card { border:1.5px solid var(--line); background:var(--paper-2); }
.xp-card .dc-head .pos { color:var(--accent); }
.xp-main { padding:1.4rem clamp(1.2rem,2vw,2rem) 1.6rem; }
.xp-head { display:flex; justify-content:space-between; align-items:baseline; gap:1rem; flex-wrap:wrap; }
.xp-head h3 { font-family:var(--f-display); font-weight:600; text-transform:uppercase; font-size:clamp(1.35rem,1.8vw,1.9rem); letter-spacing:.02em; }
.xp-period { font-family:var(--f-mono); font-size:.74rem; font-weight:500; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-2); white-space:nowrap; }
.xp-meta { font-family:var(--f-mono); font-size:.74rem; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-2); margin:.3rem 0 1rem; }
.xp-main > p { color:var(--ink-2); max-width:80ch; }
.xp-roles { display:flex; flex-direction:column; }
.xp-role { border-top:1px solid var(--line-soft); padding-block:1.1rem; }
.xp-role-head { display:flex; justify-content:space-between; gap:1rem; align-items:baseline; flex-wrap:wrap; margin-bottom:.4rem; }
.xp-role-head h4 { font-weight:600; font-size:1.02em; }
.xp-role p { color:var(--ink-2); font-size:.95em; max-width:80ch; }
.xp-tags { display:flex; flex-wrap:wrap; gap:.45rem; padding:0 clamp(1.2rem,2vw,2rem) 1.3rem; }

/* ---------- Skills spec ---------- */
.skills-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:clamp(1.2rem,1.8vw,2rem); }
.skill-card { border:1.5px solid var(--line); background:var(--paper-2); }
.skill-card h3 { font-family:var(--f-mono); font-size:.76rem; font-weight:600; letter-spacing:.2em; text-transform:uppercase; padding:.8rem 1.2rem; border-bottom:1px solid var(--line-soft); display:flex; justify-content:space-between; align-items:center; }
.skill-card h3 .pos { color:var(--accent); }
.chip-list { display:flex; flex-wrap:wrap; gap:.5rem; padding:1.2rem; }
.chip { font-family:var(--f-mono); font-size:.72rem; font-weight:500; letter-spacing:.08em; text-transform:uppercase; border:1px solid var(--line); padding:.42em .8em; color:var(--ink-2); }
.chip.hot { border-color:var(--accent); color:var(--accent); font-weight:600; }

/* ---------- Education & certificates ---------- */
.edu-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(1.2rem,1.8vw,2rem); margin-bottom:clamp(2.5rem,5vh,4rem); }
.edu-card { border:1.5px solid var(--line); background:var(--paper-2); padding:1.5rem; display:flex; flex-direction:column; gap:.5rem; }
.edu-period { font-family:var(--f-mono); font-size:.7rem; letter-spacing:.14em; text-transform:uppercase; color:var(--accent); font-weight:600; }
.edu-card h3 { font-family:var(--f-display); font-weight:600; text-transform:uppercase; font-size:1.35rem; letter-spacing:.02em; }
.edu-degree { font-weight:600; font-size:.96em; }
.edu-card > p:not(.edu-degree):not(.edu-period) { color:var(--ink-2); font-size:.92em; flex:1; }
.edu-badge { align-self:flex-start; font-family:var(--f-mono); font-size:.64rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; border:1px solid var(--ink); padding:.35em .8em; margin-top:.5rem; }
.edu-badge.progress { border-color:var(--accent); color:var(--accent); }
.certs h3 { font-family:var(--f-display); font-weight:600; text-transform:uppercase; font-size:clamp(1.4rem,1.9vw,2rem); letter-spacing:.02em; margin-bottom:1.2rem; }
.cert-grid { border:1.5px solid var(--frame); background:var(--paper); }
.cert-row { display:flex; justify-content:space-between; align-items:center; gap:1.2rem; padding:.85rem 1.2rem; border-bottom:1px solid var(--line-soft); flex-wrap:wrap; }
.cert-row:last-child { border-bottom:none; }
.cert-row:hover { background:var(--paper-2); }
.cert-name { font-weight:600; font-size:.97em; }
.cert-issuer { font-family:var(--f-mono); font-size:.7rem; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-2); margin-top:.15rem; }
.cert-right { display:flex; align-items:center; gap:1.2rem; }
.cert-date { font-family:var(--f-mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-2); }
.cert-verify { font-family:var(--f-mono); font-size:.7rem; font-weight:600; letter-spacing:.12em; text-transform:uppercase; color:var(--accent); text-decoration:none; border:1px solid var(--accent); padding:.35em .8em; }
.cert-verify:hover { background:var(--accent); color:var(--paper); }

/* ---------- Contact ---------- */
.contact-grid { display:grid; grid-template-columns:minmax(0,1.4fr) minmax(320px,1fr); gap:clamp(2.5rem,5vw,6rem); align-items:start; }
.contact-copy { font-size:var(--fs-lede); max-width:46ch; margin-bottom:1.8rem; }
.contact-actions { display:flex; gap:1rem; flex-wrap:wrap; }
.copy-note { min-height:1.6em; margin-top:.9rem; font-family:var(--f-mono); font-size:.74rem; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); }
.contact-list { display:flex; flex-direction:column; border:1.5px solid var(--frame); background:var(--paper); }
.contact-item { display:flex; align-items:center; gap:1.1rem; padding:1.05rem 1.2rem; border-bottom:1px solid var(--line-soft); text-decoration:none; }
.contact-item:last-child { border-bottom:none; }
a.contact-item:hover { background:var(--paper-2); }
.ci-icon { flex:none; width:2.6rem; height:2.6rem; display:grid; place-items:center; border:1.5px solid var(--line); color:var(--ink-2); }
a.contact-item:hover .ci-icon { border-color:var(--accent); color:var(--accent); }
.contact-item b { font-weight:600; display:block; }
.contact-item span { font-family:var(--f-mono); font-size:.74rem; letter-spacing:.06em; color:var(--ink-2); }

/* ---------- 404 ---------- */
.nf { min-height:62vh; display:grid; place-content:center; text-align:center; gap:1.2rem; padding-block:4rem; }
.nf .code { font-family:var(--f-display); font-weight:700; font-size:clamp(6rem,18vw,14rem); line-height:1; color:transparent; -webkit-text-stroke:2px var(--ink); }
.nf .hero-actions { justify-content:center; }

/* ---------- Reveal ---------- */
.reveal { opacity:0; transform:translateY(22px); }
.reveal.in { opacity:1; transform:none; transition:opacity .6s ease, transform .6s ease; }
.no-observer .reveal, .no-observer .reveal-stamp { opacity:1; transform:none; }
.no-observer .reveal-stamp { transform:rotate(-5deg); }

/* ---------- Responsive ---------- */
@media (min-width:1760px) {
  .callouts, .stats-grid { border-inline-width:1.5px; }
  .hero-grid { grid-template-columns:minmax(0,1.7fr) minmax(380px,1fr); }
}
@media (min-width:1920px) {
  :root {
    --container:2380px;
    --pad:clamp(2rem, 4vw, 6rem);
    --fs-hero:clamp(5rem, 12vw, 15rem);
    --fs-title:clamp(2.5rem, 3.8vw, 4.8rem);
    --fs-lede:clamp(1.15rem, 1.25vw, 1.45rem);
    --fs-body:clamp(1.08rem, 1.1vw, 1.28rem);
    --fs-mono:clamp(.8rem, .85vw, .95rem);
  }
}
@media (max-width:1100px) {
  .nav-links {
    position:fixed; inset:0; z-index:100; background:var(--paper);
    flex-direction:column; justify-content:center; align-items:center; gap:2.2rem;
    display:none;
  }
  .nav-links.open { display:flex; }
  .nav-links a { font-size:1.15rem; }
  .nav-burger { display:grid; position:relative; z-index:110; }
  .nav-cta { display:none; }
  .hero-grid { grid-template-columns:1fr; align-items:start; }
  .hero-right { max-width:640px; }
  .title-block { grid-template-columns:auto 1fr auto; }
  .tb-cell.opt { display:none; }
  .callouts { grid-template-columns:1fr; }
  .callout { border-left:none; border-top:1px solid var(--line-soft); }
  .callout:first-child { border-top:none; }
  .featured-grid, .projects-grid { grid-template-columns:repeat(2,1fr); }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .stat:nth-child(3), .stat:nth-child(4) { border-top:1px solid var(--line-soft); }
  .stat:nth-child(3) { border-left:none; }
  .about-grid { grid-template-columns:1fr; }
  .figure { max-width:440px; }
  .skills-grid { grid-template-columns:1fr; }
  .edu-grid { grid-template-columns:1fr; }
  .quotes-grid { grid-template-columns:1fr; }
  .contact-grid { grid-template-columns:1fr; }
  .approval { grid-template-columns:1fr; }
  .approval-side { align-items:flex-start; }
}
@media (max-width:760px) {
  :root { --frame-inset:7px; }
  .sheet-frame .zone { display:none; }
  .brand-sub { display:none; }
  .featured-grid, .projects-grid { grid-template-columns:1fr; }
  .stats-grid { grid-template-columns:1fr; }
  .stat { border-left:none; border-top:1px solid var(--line-soft); }
  .stat:first-child { border-top:none; }
  .hero-stamp { position:static; margin-bottom:1.2rem; display:inline-block; }
  .title-block { grid-template-columns:auto 1fr; }
  .tb-cell { border-top:1px solid var(--line-soft); }
  .tb-cell:nth-child(-n+2) { border-top:none; }
  .aside-row { grid-template-columns:1fr; }
  .foot-grid { grid-template-columns:1fr; gap:1.8rem; }
  .bom .opt { display:none; }
  .insp-note { display:none; }
  .fig-note { display:none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  .reveal, .reveal-stamp { opacity:1 !important; transform:none !important; transition:none !important; }
  .reveal-stamp { transform:rotate(-5deg) !important; }
  .spec-track { animation:none; }
  .badge-live .dot { animation:none; }
  .btn, .detail-card { transition:none; }
  .draw path, .draw line, .draw polyline { transition:none; stroke-dashoffset:0 !important; stroke-dasharray:none !important; }
}

/* ---------- v6: language toggle + case sheets ---------- */
.lang-link { display:inline-flex; align-items:center; justify-content:center; height:42px; min-width:42px; padding:0 .55rem; border:1.5px solid var(--line); background:none; color:var(--ink-2); font-family:var(--f-mono); font-size:.72rem; font-weight:600; letter-spacing:.14em; text-decoration:none; }
.lang-link:hover { color:var(--ink); border-color:var(--ink); }
.case-crumb { margin-bottom:1.2rem; }
.case-crumb a { color:var(--ink-2); text-decoration:none; border-bottom:1px solid var(--line); }
.case-crumb a:hover { color:var(--accent); border-color:var(--accent); }
.split-figure { border:1.5px solid var(--frame); background:var(--paper-2); padding:1.2rem 1.3rem 1.4rem; }
.split-figure .srow { display:grid; grid-template-columns:minmax(11ch,16ch) 1fr minmax(9ch,auto); align-items:center; gap:1rem; margin-top:1rem; }
.split-figure .bar { height:20px; background:var(--accent); border:1px solid var(--frame); }
.split-figure .bar.alt { background:transparent; }
.split-figure .cap { font-family:var(--f-mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-2); white-space:nowrap; }
.split-figure .cap b { color:var(--ink); }

/* ---------- Badges and Milestones Row ---------- */
.badges-row { margin-top: 2.2rem; margin-bottom: 0; display: flex; gap: 2.2rem; flex-wrap: wrap; justify-content: start; align-items: center; }
.milestones-panel { flex: 1 1 280px; min-width: 250px; display: flex; flex-direction: column; justify-content: center; min-height: 170px; box-sizing: border-box; }
@media (max-width: 580px) {
  .badges-row { justify-content: center; }
  .milestones-panel { min-height: auto; margin-top: 1rem; }
}