/* ─────────────────────────────────────────────────────────────────────────
   RAMIL VAKHITOV — BLUEPRINT PORTFOLIO
   Stylesheet / SHEET 00 of 06
   ───────────────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* ── colors ── */
  --ink-void:    #07070a;
  --ink-deep:    #0e0e14;
  --ink-paper:   #14141c;
  --blueprint:   #1f2a44;
  --blueprint-2: #2d3d5e;
  --graphite:    #4a4f5e;
  --bone:        #e8e8ec;
  --paper:       #f5f5f0;
  --accent:      #c7f84e;
  --accent-fg:   #0a0a0f;
  --accent-glow: rgba(199, 248, 78, 0.12);
  --warn:        #ff6b3d;

  /* ── type ── */
  --serif: "Fraunces", "Times New Roman", serif;
  --sans:  "Inter", system-ui, -apple-system, sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, "Menlo", monospace;

  /* ── layout ── */
  --max: 1320px;
  --pad: clamp(20px, 4vw, 64px);
  --gutter-right: 56px;   /* width of right vertical scroll rail */
  --gutter-left:  36px;   /* width of left dimension rail */
}

html {
  scroll-behavior: smooth;
  background: var(--ink-void);
  color-scheme: dark;
}

body {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--bone);
  background: var(--ink-deep);
  overflow-x: hidden;
  cursor: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (max-width: 900px) {
  body { cursor: auto; }
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: none; }
@media (max-width: 900px) { button { cursor: pointer; } }

img, svg { display: block; max-width: 100%; }

::selection { background: var(--accent); color: var(--accent-fg); }

/* ─────────────────────────────────────────────────────────────────────────
   BACKGROUND: blueprint coordinate grid
   ───────────────────────────────────────────────────────────────────────── */
.grid-bg {
  position: fixed;
  inset: -10vh -5vw;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(45, 61, 94, 0.18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(45, 61, 94, 0.18) 1px, transparent 1px),
    linear-gradient(to right, rgba(45, 61, 94, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(45, 61, 94, 0.08) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
  background-position: 0 0;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 90%);
  will-change: transform;
}

.noise {
  position: fixed; inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.4;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='.045'/></svg>");
  mix-blend-mode: overlay;
}

/* ─────────────────────────────────────────────────────────────────────────
   CURSOR: draftsman crosshair + live coordinates
   ───────────────────────────────────────────────────────────────────────── */
.cursor {
  position: fixed;
  top: 0; left: 0;
  width: 28px; height: 28px;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
  transition: width .25s cubic-bezier(.23,1,.32,1),
              height .25s cubic-bezier(.23,1,.32,1),
              opacity .2s;
}
.cursor .cross {
  position: absolute;
  inset: 0;
}
.cursor .cross::before,
.cursor .cross::after {
  content: '';
  position: absolute;
  background: var(--paper);
}
.cursor .cross::before {
  left: 50%; top: 0; bottom: 0;
  width: 1px;
  transform: translateX(-50%);
}
.cursor .cross::after {
  top: 50%; left: 0; right: 0;
  height: 1px;
  transform: translateY(-50%);
}
.cursor .corners {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .25s, inset .25s;
}
.cursor .corners span {
  position: absolute;
  width: 6px; height: 6px;
  border: 1px solid var(--accent);
}
.cursor .corners span:nth-child(1) { top: 0; left: 0;     border-right: 0; border-bottom: 0; }
.cursor .corners span:nth-child(2) { top: 0; right: 0;    border-left: 0;  border-bottom: 0; }
.cursor .corners span:nth-child(3) { bottom: 0; left: 0;  border-right: 0; border-top: 0; }
.cursor .corners span:nth-child(4) { bottom: 0; right: 0; border-left: 0;  border-top: 0; }

.cursor.is-hot { width: 44px; height: 44px; mix-blend-mode: normal; }
.cursor.is-hot .cross { opacity: 0; }
.cursor.is-hot .corners { opacity: 1; }

.cursor-coords {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: rgba(7, 7, 10, 0.6);
  padding: 3px 6px;
  white-space: nowrap;
  transform: translate(20px, 20px);
  transition: opacity .2s;
}

/* ─────────────────────────────────────────────────────────────────────────
   GLOBAL CHROME: nav, scroll-rail, stamp, dimension rails
   ───────────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 22px var(--gutter-right) 22px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  transition: padding .35s ease, background .35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(14, 14, 20, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--blueprint);
  padding-top: 14px;
  padding-bottom: 14px;
}

.nav-logo {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.nav-logo .dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-glow);
}
.nav-logo .slash { color: var(--graphite); }

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}
.nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bone);
  opacity: 0.6;
  transition: opacity .25s;
}
.nav-links a::before {
  content: attr(data-idx);
  color: var(--graphite);
  font-size: 9px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px;
  bottom: 2px;
  height: 7px;
  border-bottom: 1px solid var(--accent);
  border-left: 1px solid var(--accent);
  border-right: 1px solid var(--accent);
  border-top: 0;
  clip-path: inset(0 100% 0 0);
  transition: clip-path .35s cubic-bezier(.65,0,.35,1);
}
.nav-links a:hover { opacity: 1; }
.nav-links a:hover::after { clip-path: inset(0 0 0 0); }

/* ── scroll-rail: vertical sheet indicator on the right ── */
.scroll-rail {
  position: fixed;
  top: 0; bottom: 0;
  right: 0;
  width: var(--gutter-right);
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  pointer-events: none;
  border-left: 1px solid var(--blueprint);
}
.scroll-rail .rail-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--graphite);
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}
.scroll-rail .rail-track {
  position: relative;
  width: 1px;
  flex: 1;
  background: var(--blueprint);
  margin: 12px 0;
}
.scroll-rail .rail-fill {
  position: absolute;
  left: -1px; top: 0;
  width: 3px;
  background: var(--accent);
  height: 0;
  transition: height .1s linear;
  box-shadow: 0 0 8px var(--accent-glow);
}
.scroll-rail .rail-ticks {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.scroll-rail .rail-tick {
  width: 8px;
  height: 1px;
  background: var(--blueprint-2);
  transform: translateX(-3px);
}
.scroll-rail .rail-current {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--accent);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  text-transform: uppercase;
  min-height: 110px;
  text-align: right;
}

/* ── corner stamp ── */
.stamp {
  position: fixed;
  bottom: 16px;
  right: calc(var(--gutter-right) + 16px);
  z-index: 40;
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.5;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--graphite);
  border: 1px solid var(--blueprint);
  background: rgba(7, 7, 10, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 10px 14px;
  display: grid;
  grid-template-columns: auto auto;
  gap: 2px 14px;
  min-width: 230px;
}
.stamp .k { color: var(--graphite); }
.stamp .v { color: var(--bone); text-align: right; }
.stamp .v.accent { color: var(--accent); }
.stamp .divider {
  grid-column: 1 / -1;
  border-top: 1px solid var(--blueprint);
  margin: 4px 0 2px;
}

/* ── left vertical dimension rail ── */
.dim-rail-left {
  position: fixed;
  top: 0; bottom: 0;
  left: 0;
  width: var(--gutter-left);
  z-index: 30;
  pointer-events: none;
  display: none;
}
@media (min-width: 1100px) {
  .dim-rail-left { display: block; }
}
.dim-rail-left::before {
  content: '';
  position: absolute;
  top: 80px; bottom: 80px;
  right: 12px;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--blueprint) 8%, var(--blueprint) 92%, transparent);
}

/* ─────────────────────────────────────────────────────────────────────────
   SECTION COMMONS
   ───────────────────────────────────────────────────────────────────────── */
main {
  position: relative;
  z-index: 5;
  padding-right: var(--gutter-right);
}

.section {
  position: relative;
  padding: 120px var(--pad) 120px var(--pad);
  border-bottom: 1px dashed var(--blueprint);
}

.section-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 40px;
  align-items: end;
  margin-bottom: 80px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--blueprint);
}
.section-head .sec-num {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--accent);
  text-transform: uppercase;
}
.section-head .sec-title {
  font-family: var(--serif);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 400;
  font-variation-settings: "opsz" 120, "wght" 400;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.section-head .sec-title em {
  font-style: italic;
  font-variation-settings: "opsz" 120, "wght" 400, "slnt" -8;
  color: var(--accent);
  font-feature-settings: "ss01";
}
.section-head .sec-note {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--graphite);
  text-transform: uppercase;
  text-align: right;
  max-width: 200px;
  line-height: 1.6;
}
@media (max-width: 900px) {
  .section-head {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .section-head .sec-note { text-align: left; max-width: none; }
}

/* ─────────────────────────────────────────────────────────────────────────
   HERO
   ───────────────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 160px var(--pad) 0 var(--pad);
  min-height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 64px;
  align-items: end;
  padding-bottom: 60px;
}
@media (max-width: 1000px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
}
.hero-eyebrow::before {
  content: '';
  width: 36px;
  height: 1px;
  background: var(--accent);
}
.hero-eyebrow span { color: var(--graphite); }

.hero-title {
  font-family: var(--serif);
  font-weight: 400;
  font-variation-settings: "opsz" 144, "wght" 400;
  font-size: clamp(64px, 11vw, 180px);
  line-height: 0.92;
  letter-spacing: -0.035em;
  color: var(--paper);
  margin-bottom: 36px;
}
.hero-title .l1 { display: block; }
.hero-title .l2 { display: block; }
.hero-title .l2 em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400, "slnt" -8;
  color: var(--accent);
}

.hero-disclaimer {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--graphite);
  text-transform: uppercase;
  margin-bottom: 48px;
  max-width: 540px;
  line-height: 1.7;
}
.hero-disclaimer::before {
  content: '// ';
  color: var(--accent);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 16px 28px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bone);
  border: 1px solid var(--blueprint-2);
  background: transparent;
  transition: color .25s, border-color .25s, background .25s;
  will-change: transform;
}
.btn .arrow {
  width: 14px; height: 1px;
  background: currentColor;
  position: relative;
  transition: width .25s;
}
.btn .arrow::after {
  content: '';
  position: absolute;
  right: -1px; top: 50%;
  width: 6px; height: 1px;
  background: currentColor;
  transform: translateY(-50%) rotate(45deg);
  transform-origin: right center;
}
.btn .arrow::before {
  content: '';
  position: absolute;
  right: -1px; top: 50%;
  width: 6px; height: 1px;
  background: currentColor;
  transform: translateY(-50%) rotate(-45deg);
  transform-origin: right center;
}
.btn:hover .arrow { width: 22px; }

.btn-primary {
  border-color: var(--accent);
  color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent);
  color: var(--accent-fg);
}
.btn-ghost {
  border-color: transparent;
  padding-left: 0;
  color: var(--graphite);
}
.btn-ghost:hover { color: var(--bone); }

/* hero right: small isometric blueprint */
.hero-iso {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 480px;
  margin-left: auto;
  border: 1px solid var(--blueprint);
  background:
    linear-gradient(to right, rgba(45, 61, 94, 0.12) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(to bottom, rgba(45, 61, 94, 0.12) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--ink-paper);
}
.hero-iso .iso-tag {
  position: absolute;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--graphite);
  text-transform: uppercase;
  padding: 4px 8px;
  background: var(--ink-paper);
  border: 1px solid var(--blueprint);
}
.hero-iso .iso-tag.tl { top: 12px; left: 12px; }
.hero-iso .iso-tag.tr { top: 12px; right: 12px; color: var(--accent); border-color: var(--blueprint-2); }
.hero-iso .iso-tag.bl { bottom: 12px; left: 12px; }
.hero-iso .iso-tag.br { bottom: 12px; right: 12px; }
.hero-iso svg { width: 100%; height: 100%; }

/* hero stats strip */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--blueprint);
  margin-top: 40px;
}
@media (max-width: 800px) {
  .hero-stats { grid-template-columns: 1fr 1fr; }
}
.hero-stat {
  padding: 24px 28px 24px 0;
  border-right: 1px dashed var(--blueprint);
  position: relative;
}
.hero-stat:last-child { border-right: 0; }
.hero-stat .num {
  font-family: var(--serif);
  font-variation-settings: "opsz" 120, "wght" 400;
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1;
  color: var(--paper);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}
.hero-stat .num span {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.08em;
  vertical-align: top;
  margin-left: 6px;
}
.hero-stat .label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--graphite);
  text-transform: uppercase;
  line-height: 1.5;
}
.hero-stat .stat-idx {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--graphite);
  letter-spacing: 0.16em;
  position: absolute;
  top: 8px;
  right: 14px;
}

/* ─────────────────────────────────────────────────────────────────────────
   APPROACH — brutalist broken grid + node map
   ───────────────────────────────────────────────────────────────────────── */
.approach-headline {
  font-family: var(--serif);
  font-variation-settings: "opsz" 144, "wght" 400;
  color: var(--paper);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  align-items: end;
  margin-bottom: 64px;
}
.approach-headline span {
  display: block;
  line-height: 0.9;
  letter-spacing: -0.03em;
}
.approach-headline .w1 {
  grid-column: 1 / span 4;
  font-size: clamp(60px, 9vw, 140px);
}
.approach-headline .w2 {
  grid-column: 6 / span 2;
  font-size: clamp(48px, 7vw, 96px);
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400, "slnt" -8;
  color: var(--accent);
  transform: translateY(-12px);
}
.approach-headline .w3 {
  grid-column: 8 / span 5;
  font-size: clamp(60px, 9vw, 140px);
}
@media (max-width: 900px) {
  .approach-headline { grid-template-columns: 1fr; gap: 4px; }
  .approach-headline .w1, .approach-headline .w2, .approach-headline .w3 {
    grid-column: 1 / -1;
    transform: none;
  }
}

.approach-lead {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-bottom: 80px;
}
@media (max-width: 900px) { .approach-lead { grid-template-columns: 1fr; gap: 28px; } }
.approach-lead .big {
  font-family: var(--serif);
  font-variation-settings: "opsz" 96, "wght" 400;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.35;
  color: var(--paper);
  letter-spacing: -0.01em;
}
.approach-lead .big em {
  font-style: italic;
  font-variation-settings: "opsz" 96, "wght" 400, "slnt" -8;
  color: var(--accent);
}
.approach-lead .small {
  font-size: 15px;
  color: var(--bone);
  opacity: 0.7;
  line-height: 1.7;
  max-width: 480px;
}
.approach-lead .small + .small { margin-top: 16px; }

/* node map */
.nodemap {
  position: relative;
  border: 1px solid var(--blueprint);
  padding: 80px 40px 40px;
  background:
    linear-gradient(to right, rgba(45, 61, 94, 0.08) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(to bottom, rgba(45, 61, 94, 0.08) 1px, transparent 1px) 0 0 / 32px 32px,
    var(--ink-paper);
  min-height: 480px;
}
.nodemap-label {
  position: absolute;
  top: 12px; left: 16px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--graphite);
  text-transform: uppercase;
}
.nodemap-label .v { color: var(--accent); }

.nodemap-canvas {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  z-index: 2;
}
@media (max-width: 900px) { .nodemap-canvas { grid-template-columns: 1fr 1fr; gap: 20px; } }

.node {
  position: relative;
  padding: 24px 20px 22px;
  border: 1px solid var(--blueprint-2);
  background: var(--ink-deep);
  transition: border-color .3s, background .3s;
}
.node .phase {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--graphite);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.node h3 {
  font-family: var(--serif);
  font-variation-settings: "opsz" 96, "wght" 400;
  font-size: 22px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--paper);
  margin-bottom: 10px;
}
.node p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--bone);
  opacity: 0.65;
}
.node::before {
  content: '';
  position: absolute;
  inset: -1px;
  border: 1px solid var(--accent);
  opacity: 0;
  transition: opacity .25s;
  pointer-events: none;
}
.node:hover {
  background: var(--ink-paper);
  border-color: transparent;
}
.node:hover::before { opacity: 1; }
.node:hover .phase { color: var(--accent); }
.node-dot {
  position: absolute;
  top: -3px; left: -3px;
  width: 5px; height: 5px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

/* connecting svg overlay */
.nodemap-lines {
  position: absolute;
  inset: 80px 40px 40px;
  z-index: 1;
  pointer-events: none;
}

/* ─────────────────────────────────────────────────────────────────────────
   CASES — drawing index
   ───────────────────────────────────────────────────────────────────────── */
.cases-list { display: flex; flex-direction: column; }

.case-row {
  position: relative;
  display: grid;
  grid-template-columns: 70px 1fr minmax(0, 1.6fr) auto;
  gap: 40px;
  align-items: center;
  padding: 36px 0;
  border-top: 1px solid var(--blueprint);
  text-align: left;
  width: 100%;
  transition: padding-left .35s cubic-bezier(.23,1,.32,1);
  overflow: hidden;
}
.case-row:last-child { border-bottom: 1px solid var(--blueprint); }
.case-row::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .4s cubic-bezier(.23,1,.32,1);
}
.case-row:hover { padding-left: 18px; }
.case-row:hover::before { transform: scaleY(1); }

.case-row .case-idx {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--graphite);
}
.case-row:hover .case-idx { color: var(--accent); }
.case-row .case-name {
  font-family: var(--serif);
  font-variation-settings: "opsz" 120, "wght" 400;
  font-size: clamp(26px, 2.8vw, 38px);
  line-height: 1.05;
  color: var(--paper);
  letter-spacing: -0.02em;
  transition: color .25s;
}
.case-row:hover .case-name { color: var(--accent); }
.case-row .case-desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--bone);
  opacity: 0.7;
}
.case-row .case-tags {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}
.case-row .tag {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--blueprint-2);
  color: var(--bone);
  opacity: 0.8;
  white-space: nowrap;
}
.case-row .tag.live {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  opacity: 1;
}
.case-row .tag.live::before {
  content: '●';
  margin-right: 6px;
  color: var(--warn);
}
.case-row .tag.closed {
  border-color: rgba(255, 107, 61, 0.4);
  color: var(--warn);
  opacity: 0.9;
}



@media (max-width: 900px) {
  .case-row {
    grid-template-columns: 50px 1fr;
    grid-template-rows: auto auto auto;
    gap: 6px 14px;
    padding: 26px 0;
  }
  .case-row .case-idx { grid-row: 1; grid-column: 1; align-self: start; padding-top: 8px; }
  .case-row .case-name-wrap { grid-row: 1; grid-column: 2; }
  .case-row .case-desc { grid-row: 2; grid-column: 2; font-size: 14px; }
  .case-row .case-tags {
    grid-row: 3; grid-column: 2;
    flex-direction: row; flex-wrap: wrap; align-items: flex-start;
    gap: 6px;
  }
}

/* ─────────────────────────────────────────────────────────────────────────
   MODULES — drawing legend table
   ───────────────────────────────────────────────────────────────────────── */
.modules-table {
  border: 1px solid var(--blueprint);
  font-family: var(--mono);
  position: relative;
  display: grid;
  grid-template-columns: 1fr minmax(0, 360px);
}
@media (max-width: 900px) { .modules-table { grid-template-columns: 1fr; } }

.modules-rows { display: flex; flex-direction: column; }
.modules-row {
  display: grid;
  grid-template-columns: 80px 220px 1fr;
  gap: 24px;
  align-items: center;
  padding: 24px 28px;
  border-bottom: 1px solid var(--blueprint);
  cursor: none;
  transition: background .25s;
}
.modules-row:last-child { border-bottom: 0; }
.modules-row:hover { background: var(--ink-paper); }
.modules-row.is-active { background: var(--ink-paper); }
.modules-row.is-active .mod-code { color: var(--accent); }

.mod-code {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--graphite);
}
.mod-name {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--paper);
  text-transform: uppercase;
}
.mod-text {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.55;
  color: var(--bone);
  opacity: 0.75;
}

@media (max-width: 900px) {
  .modules-row {
    grid-template-columns: 60px 1fr;
    grid-template-rows: auto auto;
    gap: 4px 16px;
    padding: 20px 18px;
  }
  .mod-code { grid-row: 1; grid-column: 1; }
  .mod-name { grid-row: 1; grid-column: 2; }
  .mod-text { grid-row: 2; grid-column: 1 / -1; }
}

.modules-preview {
  position: relative;
  border-left: 1px solid var(--blueprint);
  min-height: 360px;
  background:
    linear-gradient(to right, rgba(45, 61, 94, 0.1) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(to bottom, rgba(45, 61, 94, 0.1) 1px, transparent 1px) 0 0 / 24px 24px;
}
.modules-preview .mp-label {
  position: absolute;
  top: 14px; left: 16px;
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--graphite);
  text-transform: uppercase;
}
.modules-preview .mp-label .v { color: var(--accent); }
.modules-preview svg {
  position: absolute;
  inset: 40px 20px 20px;
  width: calc(100% - 40px);
  height: calc(100% - 60px);
}
@media (max-width: 900px) { .modules-preview { display: none; } }

/* ─────────────────────────────────────────────────────────────────────────
   STACK — marquee
   ───────────────────────────────────────────────────────────────────────── */
.stack-marquee-wrap {
  overflow: hidden;
  border-top: 1px solid var(--blueprint);
  border-bottom: 1px solid var(--blueprint);
  margin: 40px calc(-1 * var(--pad)) 0;
}
.stack-marquee {
  display: flex;
  width: max-content;
  animation: marquee 60s linear infinite;
}
.stack-item {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  padding: 26px 36px;
  border-right: 1px solid var(--blueprint);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bone);
  opacity: 0.7;
  white-space: nowrap;
}
.stack-item .symbol {
  color: var(--graphite);
  font-size: 10px;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─────────────────────────────────────────────────────────────────────────
   CONTACT — title block + spec sheet
   ───────────────────────────────────────────────────────────────────────── */
.contact-title {
  font-family: var(--serif);
  font-variation-settings: "opsz" 144, "wght" 400;
  font-size: clamp(64px, 10vw, 160px);
  line-height: 0.92;
  letter-spacing: -0.035em;
  color: var(--paper);
}
.contact-title em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400, "slnt" -8;
  color: var(--accent);
}
.contact-sub {
  margin-top: 36px;
  max-width: 460px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--graphite);
  line-height: 1.7;
}

.spec-sheet {
  margin-top: 80px;
  border: 1px solid var(--blueprint);
  font-family: var(--mono);
  background: var(--ink-paper);
}
.spec-row {
  display: grid;
  grid-template-columns: 160px 1fr 24px;
  gap: 24px;
  align-items: center;
  padding: 22px 28px;
  border-bottom: 1px solid var(--blueprint);
  transition: padding-left .25s, background .25s;
  cursor: none;
}
.spec-row:last-child { border-bottom: 0; }
.spec-row:hover { background: var(--ink-deep); padding-left: 40px; }
.spec-row .k {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--graphite);
  text-transform: uppercase;
}
.spec-row .v {
  font-family: var(--sans);
  font-size: 17px;
  color: var(--paper);
  letter-spacing: 0;
}
.spec-row .arrow {
  font-family: var(--mono);
  color: var(--accent);
  transition: transform .25s;
}
.spec-row:hover .arrow { transform: translate(4px, -4px); }

.spec-rule {
  height: 0;
  border-top: 1px solid var(--blueprint);
}
.spec-foot {
  display: grid;
  grid-template-columns: 1fr auto;
  padding: 18px 28px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--graphite);
  text-transform: uppercase;
}

@media (max-width: 700px) {
  .spec-row { grid-template-columns: 80px 1fr 20px; padding: 18px 18px; gap: 16px; }
  .spec-row .v { font-size: 15px; }
  .spec-foot { padding: 14px 18px; }
}

/* ─────────────────────────────────────────────────────────────────────────
   FOOTER
   ───────────────────────────────────────────────────────────────────────── */
footer {
  padding: 22px var(--pad);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--graphite);
  text-transform: uppercase;
  align-items: center;
}
footer .l { justify-self: start; }
footer .c { justify-self: center; }
footer .r { justify-self: end; }
footer .ping {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent);
}
footer .ping::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.2); }
}

/* ─────────────────────────────────────────────────────────────────────────
   MODAL — case detail / drawing sheet
   ───────────────────────────────────────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  background: rgba(7, 7, 10, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 40px;
  overflow-y: auto;
}
.modal.is-open { display: block; }

.modal-sheet {
  max-width: 1240px;
  margin: 0 auto;
  background: var(--ink-deep);
  border: 1px solid var(--blueprint);
  position: relative;
  background-image:
    linear-gradient(to right, rgba(45, 61, 94, 0.08) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(to bottom, rgba(45, 61, 94, 0.08) 1px, transparent 1px) 0 0 / 32px 32px;
}

.modal-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 40px;
  align-items: center;
  padding: 22px 32px;
  border-bottom: 1px solid var(--blueprint);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--graphite);
  text-transform: uppercase;
}
.modal-header .h-stamp {
  display: flex; gap: 18px; flex-wrap: wrap;
}
.modal-header .h-stamp span { color: var(--graphite); }
.modal-header .h-stamp span b {
  font-weight: 400;
  color: var(--bone);
  margin-left: 6px;
}
.modal-close {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--bone);
  text-transform: uppercase;
  padding: 8px 14px;
  border: 1px solid var(--blueprint-2);
  transition: color .25s, border-color .25s, background .25s;
}
.modal-close:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.modal-body {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 0;
}
@media (max-width: 1000px) { .modal-body { grid-template-columns: 1fr; } }

.modal-iso {
  position: relative;
  padding: 40px;
  border-right: 1px solid var(--blueprint);
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 1000px) {
  .modal-iso { border-right: 0; border-bottom: 1px solid var(--blueprint); min-height: 480px; }
}
.modal-iso svg { width: 100%; max-width: 580px; height: auto; }
.modal-iso .iso-corner {
  position: absolute;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--graphite);
  text-transform: uppercase;
  padding: 4px 8px;
  border: 1px solid var(--blueprint);
  background: var(--ink-deep);
}
.modal-iso .iso-corner.tl { top: 12px; left: 12px; }
.modal-iso .iso-corner.tr { top: 12px; right: 12px; color: var(--accent); }
.modal-iso .iso-corner.bl { bottom: 12px; left: 12px; }
.modal-iso .iso-corner.br { bottom: 12px; right: 12px; }

.modal-content {
  padding: 40px;
  font-family: var(--sans);
}
.modal-content .m-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.modal-content h1 {
  font-family: var(--serif);
  font-variation-settings: "opsz" 144, "wght" 400;
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.025em;
  color: var(--paper);
  margin-bottom: 28px;
}
.modal-content h1 em {
  font-style: italic;
  font-variation-settings: "opsz" 144, "wght" 400, "slnt" -8;
  color: var(--accent);
}
.modal-content .m-block {
  border-top: 1px solid var(--blueprint);
  padding: 22px 0;
}
.modal-content .m-block h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--graphite);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.modal-content .m-block p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--bone);
  opacity: 0.85;
}
.modal-content .m-block p + p { margin-top: 12px; }

.m-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--blueprint);
  border-bottom: 1px solid var(--blueprint);
  margin: 24px 0 0;
}
.m-specs .spec {
  padding: 18px 0;
  border-right: 1px dashed var(--blueprint);
}
.m-specs .spec:last-child { border-right: 0; }
.m-specs .spec:nth-child(n+2) { padding-left: 20px; }
.m-specs .spec .num {
  font-family: var(--serif);
  font-variation-settings: "opsz" 96, "wght" 400;
  font-size: 30px;
  color: var(--paper);
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}
.m-specs .spec .num span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-left: 4px;
}
.m-specs .spec .lbl {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--graphite);
  text-transform: uppercase;
}

.m-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.m-stack .chip {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone);
  padding: 4px 8px;
  border: 1px solid var(--blueprint-2);
  opacity: 0.8;
}

.m-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 28px;
  padding: 14px 22px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: background .25s, color .25s;
}
.m-link:hover { background: var(--accent); color: var(--accent-fg); }
.m-link .arrow { width: 14px; height: 1px; background: currentColor; position: relative; }
.m-link .arrow::after, .m-link .arrow::before {
  content: '';
  position: absolute;
  right: -1px; top: 50%;
  width: 6px; height: 1px;
  background: currentColor;
}
.m-link .arrow::after { transform: translateY(-50%) rotate(45deg); transform-origin: right center; }
.m-link .arrow::before { transform: translateY(-50%) rotate(-45deg); transform-origin: right center; }

/* ─────────────────────────────────────────────────────────────────────────
   REVEAL / SVG DRAWING ANIMATIONS
   ───────────────────────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s cubic-bezier(.23,1,.32,1),
              transform .8s cubic-bezier(.23,1,.32,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-d2 { transition-delay: .12s; }
.reveal-d3 { transition-delay: .24s; }
.reveal-d4 { transition-delay: .36s; }

/* svg path drawing */
.iso-draw path,
.iso-draw line,
.iso-draw polyline,
.iso-draw polygon,
.iso-draw rect,
.iso-draw circle {
  stroke-dasharray: var(--len, 1000);
  stroke-dashoffset: var(--len, 1000);
  transition: stroke-dashoffset 1.2s cubic-bezier(.65, 0, .35, 1);
}
.iso-draw.is-drawn path,
.iso-draw.is-drawn line,
.iso-draw.is-drawn polyline,
.iso-draw.is-drawn polygon,
.iso-draw.is-drawn rect,
.iso-draw.is-drawn circle {
  stroke-dashoffset: 0;
}

.iso-draw .iso-label,
.iso-draw .iso-fill,
.iso-draw .iso-dot {
  opacity: 0;
  transition: opacity .6s ease;
  transition-delay: 1s;
}
.iso-draw.is-drawn .iso-label,
.iso-draw.is-drawn .iso-fill,
.iso-draw.is-drawn .iso-dot {
  opacity: 1;
}

/* flowing data dots */
@keyframes flow {
  from { offset-distance: 0%; opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  to   { offset-distance: 100%; opacity: 0; }
}

/* ─────────────────────────────────────────────────────────────────────────
   SVG ISO PRIMITIVES (used inline in HTML)
   ───────────────────────────────────────────────────────────────────────── */
.iso-grid { stroke: var(--blueprint); stroke-width: 0.5; fill: none; opacity: 0.5; }
.iso-edge { stroke: var(--blueprint-2); stroke-width: 1; fill: none; }
.iso-fill { fill: var(--ink-paper); fill-opacity: 0.6; }
.iso-hot  { stroke: var(--accent); stroke-width: 1.2; fill: none; }
.iso-axis { stroke: var(--blueprint); stroke-width: 0.5; stroke-dasharray: 2 3; fill: none; }
.iso-label, .iso-anno {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 9px;
  letter-spacing: 0.14em;
  fill: var(--graphite);
  text-transform: uppercase;
}
.iso-label.hot { fill: var(--accent); }
.iso-label.bone { fill: var(--bone); }
.iso-title {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  fill: var(--bone);
  text-transform: uppercase;
}
.iso-dot { fill: var(--accent); filter: drop-shadow(0 0 4px var(--accent-glow)); }

/* mini hero iso glyph */
.iso-glow { stroke: var(--accent); stroke-width: 1.2; fill: none; opacity: 0.9; filter: drop-shadow(0 0 4px var(--accent-glow)); }

/* ─────────────────────────────────────────────────────────────────────────
   SCROLLBAR
   ───────────────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 0; height: 0; }