/* ============================================================
   Bogdan Baranovskiy — portfolio
   Washi paper, sumi ink, one vermilion seal. Lab-notebook details.
   ============================================================ */

:root {
  --paper: #f5f3ee;
  --paper-2: #ebe8e1;
  --card: #fbfaf7;
  --ink: #16161a;
  --ink-2: #47474e;
  --ink-3: #85858c;
  --rule: #d8d4ca;
  --rule-soft: #e6e2d9;
  --accent: #c8402a;          /* shu-iro, vermilion seal */
  --accent-ink: #ffffff;
  --accent-soft: rgba(200, 64, 42, 0.09);
  --indigo: #2f4a7a;          /* ai-iro, secondary data line */
  --indigo-soft: rgba(47, 74, 122, 0.10);
  --dot: rgba(22, 22, 26, 0.10);

  --serif: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", Georgia, serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --max: 1160px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(88px, 12vw, 160px);
  --radius: 2px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121214; --paper-2: #1a1a1d; --card: #17171a;
    --ink: #ecebe6; --ink-2: #b4b3ad; --ink-3: #7c7b77;
    --rule: #2c2c30; --rule-soft: #232327;
    --accent: #ff6a4d; --accent-ink: #121214; --accent-soft: rgba(255, 106, 77, 0.12);
    --indigo: #8ea8dc; --indigo-soft: rgba(142, 168, 220, 0.12);
    --dot: rgba(236, 235, 230, 0.08);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #121214; --paper-2: #1a1a1d; --card: #17171a;
  --ink: #ecebe6; --ink-2: #b4b3ad; --ink-3: #7c7b77;
  --rule: #2c2c30; --rule-soft: #232327;
  --accent: #ff6a4d; --accent-ink: #121214; --accent-soft: rgba(255, 106, 77, 0.12);
  --indigo: #8ea8dc; --indigo-soft: rgba(142, 168, 220, 0.12);
  --dot: rgba(236, 235, 230, 0.08);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration-color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- type ---------- */
.mono, .label, .kicker { font-family: var(--mono); }
.label {
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3);
}
.kicker {
  display: flex; align-items: baseline; gap: 14px;
  font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3);
  margin: 0 0 28px;
}
.kicker .num { color: var(--accent); }
.kicker::after { content: ""; flex: 1; height: 1px; background: var(--rule); transform: translateY(-4px); }

h1, h2, h3 { font-family: var(--serif); font-weight: 500; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: clamp(38px, 6.2vw, 74px); line-height: 1.08; }
h2 { font-size: clamp(30px, 4vw, 48px); line-height: 1.15; }
h3 { font-size: clamp(22px, 2.4vw, 28px); line-height: 1.25; }
p { margin: 0 0 1em; }
h1, h2, h3, h4, .case-result div, .proof, .fig-cap, .label { text-wrap: balance; }
p, li, dd, .lede, small { text-wrap: pretty; }
.lede { font-size: clamp(18px, 1.6vw, 20px); color: var(--ink-2); max-width: 36em; }
.accent { color: var(--accent); }
em.mark { font-style: normal; background: linear-gradient(transparent 62%, var(--accent-soft) 62%); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.2) blur(10px);
  -webkit-backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.site-header.scrolled { border-bottom-color: var(--rule); }
/* the one warm object on the page: an espresso-and-cream glass header, typewriter labels */
.site-header {
  --paper: #f3ecdf; --ink: #2b2119; --ink-2: #574739; --ink-3: #75644f; --rule: #d6c9b2;
  --mono: "Courier Prime", "Courier New", ui-monospace, monospace;
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  color: var(--ink);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .site-header { --paper: #17120e; --ink: #efe6d6; --ink-2: #c9b9a3; --ink-3: #93836e; --rule: #3b3026; }
}
:root[data-theme="dark"] .site-header { --paper: #17120e; --ink: #efe6d6; --ink-2: #c9b9a3; --ink-3: #93836e; --rule: #3b3026; }
.site-header.scrolled { border-bottom-color: color-mix(in srgb, var(--rule) 60%, transparent); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.hanko {
  width: 34px; height: 34px; flex: none;
  display: grid; place-items: center;
  background: var(--accent); color: var(--accent-ink);
  font-family: var(--serif); font-weight: 700; font-size: 14px; letter-spacing: 0.02em;
  border-radius: 3px;
  transform: rotate(-3deg);
}
.brand-name { font-weight: 500; font-size: 15px; line-height: 1.2; }
.brand-name small { display: block; font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.06em; }
.nav { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.nav a { text-decoration: none; color: var(--ink-2); }
.nav a:hover { color: var(--accent); }
.nav .btn { color: var(--ink); }
.theme-toggle {
  width: 34px; height: 34px; border: 1px solid var(--rule); background: transparent; color: var(--ink-2);
  border-radius: 50%; cursor: pointer; display: grid; place-items: center; padding: 0;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
@media (max-width: 820px) { .nav .hide-sm { display: none; } .nav { gap: 16px; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em;
  padding: 13px 20px; border: 1px solid var(--ink); border-radius: var(--radius);
  text-decoration: none; color: var(--ink); background: transparent; cursor: pointer;
  transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn.small { padding: 8px 14px; font-size: 12px; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: clamp(56px, 9vw, 120px) 0 clamp(64px, 9vw, 110px);
  background-image: radial-gradient(var(--dot) 1px, transparent 1.2px);
  background-size: 22px 22px;
  background-position: -11px -11px;
}
.hero::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 120px;
  background: linear-gradient(transparent, var(--paper)); pointer-events: none;
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } }
.hero h1 { margin: 22px 0 26px; }
.hero h1 .accent { white-space: nowrap; }
.hero .lede { margin-bottom: 36px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }

.status-line { display: flex; align-items: center; gap: 10px; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 50%, transparent); } 70% { box-shadow: 0 0 0 8px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@media (prefers-reduced-motion: reduce) { .pulse { animation: none; } }

/* ---------- live signal instrument ---------- */
.instrument {
  background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius);
  box-shadow: 0 1px 0 var(--rule-soft), 0 24px 60px -36px rgba(0,0,0,.25);
}
.instrument-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--rule-soft); gap: 12px; }
.instrument-head .label b { color: var(--ink); font-weight: 500; }
.legend { display: flex; gap: 14px; font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
.legend i { display: inline-block; width: 14px; height: 2px; vertical-align: middle; margin-right: 6px; }
.legend .l-eng { background: var(--accent); }
.legend .l-foc { background: var(--indigo); }
.canvas-wrap { position: relative; height: 240px; cursor: crosshair; touch-action: pan-y; }
.canvas-wrap canvas { width: 100%; height: 100%; }
.canvas-hint {
  position: absolute; left: 50%; top: 46%; transform: translate(-50%, -50%);
  font-family: var(--mono); font-size: 12px; letter-spacing: .06em; color: var(--ink-2);
  background: var(--card); border: 1px solid var(--rule); padding: 7px 12px; border-radius: 20px;
  pointer-events: none; transition: opacity .6s; white-space: nowrap;
}
.instrument-head .label { white-space: nowrap; }
.readout { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rule-soft); }
.readout > div { padding: 12px 18px; border-right: 1px solid var(--rule-soft); }
.readout > div:last-child { border-right: 0; }
.readout .v { font-family: var(--mono); font-size: 18px; color: var(--ink); line-height: 1.3; }
.readout .v.state { color: var(--accent); }
@media (max-width: 520px) { .readout { grid-template-columns: repeat(2, 1fr); } .readout > div:nth-child(2) { border-right: 0; } .readout > div:nth-child(-n+2) { border-bottom: 1px solid var(--rule-soft); } }
.instrument-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 18px; border-top: 1px solid var(--rule-soft); flex-wrap: wrap; }
.instrument-foot .label { text-transform: none; letter-spacing: 0.02em; }
.findings { border-top: 1px solid var(--rule-soft); padding: 0 18px; max-height: 0; overflow: hidden; transition: max-height .6s ease, padding .4s; }
.findings.open { max-height: 640px; padding: 18px; }
.findings ol { list-style: none; margin: 0; padding: 0; counter-reset: f; }
.findings li { counter-increment: f; display: grid; grid-template-columns: 34px 1fr; gap: 6px; font-size: 14.5px; line-height: 1.55; color: var(--ink-2); margin-bottom: 12px; }
.findings li::before { content: "F" counter(f, decimal-leading-zero); font-family: var(--mono); font-size: 11px; color: var(--accent); padding-top: 3px; }
.findings li b { color: var(--ink); font-weight: 500; }
.findings .fine { font-family: var(--mono); font-size: 11px; color: var(--ink-3); margin: 6px 0 0; }

/* ---------- sections ---------- */
section { padding: var(--section) 0 0; }
section:last-of-type { padding-bottom: var(--section); }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end; margin-bottom: clamp(40px, 6vw, 72px); }
.section-head p { color: var(--ink-2); margin: 0; max-width: 32em; }
@media (max-width: 860px) { .section-head { grid-template-columns: 1fr; gap: 20px; } }

/* results strip */
.results { padding-top: clamp(40px, 6vw, 72px); }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule); }
.metric { padding: 28px 24px 26px 0; border-right: 1px solid var(--rule); }
.metric + .metric { padding-left: 24px; }
.metric:last-child { border-right: 0; }
.metric .big { font-family: var(--serif); font-size: clamp(38px, 4.6vw, 58px); line-height: 1; letter-spacing: -0.02em; }
.metric .big sup { font-size: 0.45em; vertical-align: top; position: relative; top: 0.25em; margin-left: 2px; color: var(--accent); }
.metric .what { margin-top: 14px; font-size: 15px; color: var(--ink-2); line-height: 1.45; }
.metric .src { margin-top: 10px; font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.04em; }
@media (max-width: 860px) {
  .metrics { grid-template-columns: 1fr 1fr; }
  .metric { padding: 22px 16px 22px 0; }
  .metric + .metric { padding-left: 16px; }
  .metric:nth-child(2) { border-right: 0; }
  .metric:nth-child(3) { padding-left: 0; }
  .metric:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
}
.clients { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 28px; margin-top: 26px; }
.clients .label { margin-right: 6px; }
.clients span.c { font-family: var(--serif); font-size: 18px; color: var(--ink-2); }

/* case cards */
.cases { display: grid; gap: clamp(20px, 3vw, 32px); }
.case {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 0;
  background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius);
  text-decoration: none; color: inherit; overflow: hidden;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.case:hover { color: inherit; border-color: var(--ink-3); transform: translateY(-2px); box-shadow: 0 24px 50px -38px rgba(0,0,0,.35); }
.case-body { padding: clamp(24px, 3.4vw, 44px); display: flex; flex-direction: column; gap: 18px; }
.case-fig { border-left: 1px solid var(--rule-soft); padding: clamp(20px, 3vw, 36px); display: flex; flex-direction: column; justify-content: center; background-image: radial-gradient(var(--dot) 1px, transparent 1.2px); background-size: 18px 18px; }
@media (max-width: 900px) { .case { grid-template-columns: 1fr; } .case-fig { border-left: 0; border-top: 1px solid var(--rule-soft); } }
.case .meta { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.case h3 { max-width: 18em; }
.case .q { color: var(--ink-2); font-size: 16px; margin: 0; }
.case-result { display: flex; gap: 28px; flex-wrap: wrap; padding-top: 18px; border-top: 1px solid var(--rule-soft); margin-top: auto; }
.case-result div { font-family: var(--mono); font-size: 12px; color: var(--ink-3); }
.case-result b { display: block; font-family: var(--serif); font-weight: 500; font-size: 30px; color: var(--accent); letter-spacing: -0.01em; line-height: 1.15; }
.case .more { font-family: var(--mono); font-size: 13px; color: var(--ink); display: inline-flex; gap: 8px; }
.case:hover .more { color: var(--accent); }
.fig-cap { font-family: var(--mono); font-size: 11px; color: var(--ink-3); margin-top: 12px; line-height: 1.5; }
.fig-cap b { color: var(--ink-2); font-weight: 500; }

/* figures (svg charts) */
.fig { width: 100%; height: auto; overflow: visible; }
.fig .grid line { stroke: var(--rule-soft); stroke-width: 1; }
.fig .axis { stroke: var(--rule); stroke-width: 1; }
.fig text { font-family: var(--mono); font-size: 10px; fill: var(--ink-3); }
.fig .t-ink { fill: var(--ink-2); }
.fig .t-accent { fill: var(--accent); }
.fig .eng { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.fig .ghost { fill: none; stroke: var(--ink-3); stroke-width: 1.4; stroke-dasharray: 3 4; }
.fig .area { fill: var(--accent-soft); stroke: none; }
.fig .zone { fill: var(--accent-soft); }
.fig .zone-line { stroke: var(--accent); stroke-width: 1; stroke-dasharray: 2 3; }
.fig .mark { stroke: var(--ink-3); stroke-width: 1; stroke-dasharray: 2 3; }
.fig .bar { fill: var(--ink); }
.fig .bar.hi { fill: var(--accent); }
.fig .dot { fill: var(--accent); }
.fig .dot-ink { fill: var(--card); stroke: var(--accent); stroke-width: 1.6; }
.fig .draw { stroke-dasharray: var(--len, 2000); stroke-dashoffset: var(--len, 2000); transition: stroke-dashoffset 1.8s cubic-bezier(.3,.6,.2,1); }
.in .fig .draw, .fig.in .draw { stroke-dashoffset: 0; }
@media (prefers-reduced-motion: reduce) { .fig .draw { stroke-dasharray: none; stroke-dashoffset: 0; transition: none; } }

/* method */
.method { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); }
.step { padding: 28px 24px 8px 0; position: relative; }
.step + .step { padding-left: 24px; border-left: 1px solid var(--rule); }
.step .n { font-family: var(--mono); font-size: 12px; color: var(--accent); letter-spacing: 0.08em; }
.step h3 { font-size: 22px; margin: 14px 0 12px; }
.step p { font-size: 15px; color: var(--ink-2); }
@media (max-width: 900px) { .method { grid-template-columns: 1fr 1fr; } .step:nth-child(3) { border-left: 0; padding-left: 0; } .step:nth-child(n+3) { border-top: 1px solid var(--rule); } }
@media (max-width: 560px) { .method { grid-template-columns: 1fr; } .step + .step { border-left: 0; padding-left: 0; border-top: 1px solid var(--rule); } }
.pull {
  margin: clamp(56px, 8vw, 96px) auto 0; max-width: 820px; text-align: center;
  font-family: var(--serif); font-size: clamp(24px, 3vw, 36px); line-height: 1.35;
}
.pull .rule { display: block; width: 40px; height: 2px; background: var(--accent); margin: 0 auto 26px; }
.pull small { display: block; margin-top: 18px; font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: 0.06em; }

/* building */
.builds { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.build { background: var(--paper); padding: 30px 28px 28px; display: flex; flex-direction: column; gap: 12px; min-height: 250px; transition: background .25s; }
.build:hover { background: var(--card); }
.build .top { display: flex; justify-content: space-between; align-items: baseline; }
.build .stat { font-family: var(--serif); font-size: 34px; line-height: 1; color: var(--ink); letter-spacing: -0.02em; }
.build .stat small { font-size: 15px; color: var(--ink-3); margin-left: 4px; letter-spacing: 0; }
.build h3 { font-size: 20px; margin-top: 6px; }
.build p { font-size: 15px; color: var(--ink-2); margin: 0; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 10px; }
.tag { font-family: var(--mono); font-size: 11px; padding: 3px 8px; border: 1px solid var(--rule); border-radius: 20px; color: var(--ink-3); }
@media (max-width: 960px) { .builds { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .builds { grid-template-columns: 1fr; } .build { min-height: 0; } }

/* about / timeline */
.about-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: clamp(32px, 6vw, 96px); }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }
.about-grid .lede { margin-top: 24px; }
.timeline { border-top: 1px solid var(--ink); }
.tl { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--rule); }
.tl .when { font-family: var(--mono); font-size: 12px; color: var(--ink-3); padding-top: 4px; letter-spacing: 0.04em; }
.tl h3 { font-size: 21px; }
.tl .org { color: var(--accent); }
.tl p { font-size: 15px; color: var(--ink-2); margin: 8px 0 0; }
@media (max-width: 560px) { .tl { grid-template-columns: 1fr; gap: 6px; } }
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 40px; }
@media (max-width: 760px) { .facts { grid-template-columns: 1fr 1fr; } }
.facts h4 { font-family: var(--mono); font-weight: 400; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 12px; }
.facts ul { list-style: none; margin: 0; padding: 0; font-size: 15px; color: var(--ink-2); }
.facts li { padding: 7px 0; border-bottom: 1px dashed var(--rule); }
.facts li b { color: var(--ink); font-weight: 500; }
@media (max-width: 560px) { .facts { grid-template-columns: 1fr; } }

/* contact */
.contact-block { border-top: 1px solid var(--ink); padding-top: clamp(40px, 6vw, 64px); display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: end; }
.contact-block h2 { font-size: clamp(34px, 5vw, 62px); }
.contact-links { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.contact-links a.line { font-family: var(--mono); font-size: 15px; text-decoration: none; border-bottom: 1px solid var(--rule); padding-bottom: 4px; }
.contact-links a.line:hover { border-color: var(--accent); }
@media (max-width: 860px) { .contact-block { grid-template-columns: 1fr; } }

.site-footer { border-top: 1px solid var(--rule); padding: 28px 0 36px; }
.site-footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-family: var(--mono); font-size: 12px; color: var(--ink-3); }

/* ---------- case study pages ---------- */
.report-head { padding: clamp(48px, 8vw, 100px) 0 clamp(40px, 6vw, 64px); border-bottom: 1px solid var(--rule); background-image: radial-gradient(var(--dot) 1px, transparent 1.2px); background-size: 22px 22px; }
.crumbs { font-family: var(--mono); font-size: 12px; color: var(--ink-3); margin-bottom: 30px; display: flex; gap: 10px; flex-wrap: wrap; }
.crumbs a { text-decoration: none; }
.report-head h1 { font-size: clamp(34px, 5.2vw, 62px); max-width: 16em; }
.report-head .lede { margin-top: 24px; }
.spec { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 48px; border-top: 1px solid var(--ink); }
.spec > div { padding: 16px 16px 16px 0; border-bottom: 1px solid var(--rule); }
.spec > div + div { padding-left: 16px; border-left: 1px solid var(--rule-soft); }
.spec > div:nth-child(4n+1) { border-left: 0; padding-left: 0; }
.spec .v { font-size: 15px; color: var(--ink); margin-top: 4px; line-height: 1.4; }
@media (max-width: 760px) { .spec { grid-template-columns: 1fr 1fr; } .spec > div:nth-child(odd) { border-left: 0; padding-left: 0; } .spec > div:nth-child(even) { padding-left: 16px; border-left: 1px solid var(--rule-soft); } }

.report { display: grid; grid-template-columns: 220px 1fr; gap: clamp(28px, 5vw, 72px); padding: clamp(56px, 8vw, 96px) 0; }
.toc { position: sticky; top: 100px; align-self: start; font-family: var(--mono); font-size: 12px; }
.toc a { display: block; padding: 7px 0 7px 14px; text-decoration: none; color: var(--ink-3); border-left: 1px solid var(--rule); }
.toc a:hover, .toc a.active { color: var(--accent); border-left-color: var(--accent); }
@media (max-width: 900px) { .report { grid-template-columns: 1fr; } .toc { display: none; } }
.report article { max-width: 720px; }
.report article section { padding: 0 0 clamp(48px, 6vw, 72px); }
.report article section:last-of-type { padding-bottom: 0; }
.report h2 { font-size: clamp(26px, 3vw, 34px); margin-bottom: 20px; }
.report h2 .n { display: block; font-family: var(--mono); font-size: 12px; color: var(--accent); letter-spacing: .08em; margin-bottom: 10px; }
.report p, .report li { color: var(--ink-2); }
.report ul { padding-left: 20px; }
.report li { margin-bottom: 8px; }
.report li::marker { color: var(--accent); }
.big-results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule); margin: 8px 0 12px; }
.big-results > div { padding: 22px 16px 20px 0; }
.big-results > div + div { padding-left: 18px; border-left: 1px solid var(--rule); }
.big-results b { display: block; font-family: var(--serif); font-weight: 500; font-size: clamp(34px, 4vw, 48px); color: var(--accent); line-height: 1.05; letter-spacing: -0.02em; }
.big-results span { font-size: 14px; color: var(--ink-2); display: block; margin-top: 8px; line-height: 1.4; }
@media (max-width: 560px) { .big-results { grid-template-columns: 1fr; } .big-results > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); } }
blockquote { margin: 28px 0; padding: 4px 0 4px 22px; border-left: 2px solid var(--accent); font-family: var(--serif); font-size: 21px; line-height: 1.5; color: var(--ink); }
blockquote cite { display: block; margin-top: 10px; font-family: var(--mono); font-style: normal; font-size: 12px; color: var(--ink-3); }
.figure { margin: 32px 0; padding: 24px; border: 1px solid var(--rule); background: var(--card); border-radius: var(--radius); }
.figure .label { margin-bottom: 14px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.callout { padding: 22px 24px; background: var(--accent-soft); border-radius: var(--radius); color: var(--ink); font-size: 16px; margin: 28px 0; }
.callout .label { color: var(--accent); display: block; margin-bottom: 8px; }
.next-case { display: flex; justify-content: space-between; align-items: center; gap: 20px; border-top: 1px solid var(--ink); padding: 32px 0 0; flex-wrap: wrap; }
.next-case a.title { font-family: var(--serif); font-size: clamp(22px, 2.6vw, 30px); text-decoration: none; }
.source { font-family: var(--mono); font-size: 12px; color: var(--ink-3); }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

[id] { scroll-margin-top: 88px; }
.legend span { white-space: nowrap; }
@media (max-width: 520px) { .instrument-head { flex-wrap: wrap; } .legend { gap: 10px; } }

/* ---------- field notes (hero) ---------- */
.notes-body { padding: 6px 18px 4px; min-height: 268px; }
.log { list-style: none; margin: 0; padding: 0; }
.log li {
  display: grid; grid-template-columns: 44px 1fr auto; gap: 10px; align-items: baseline;
  padding: 10px 0; border-bottom: 1px dashed var(--rule-soft); font-size: 14px; line-height: 1.45; color: var(--ink-2);
  opacity: 0; transform: translateY(-6px); transition: opacity .5s, transform .5s;
}
.log li.show { opacity: 1; transform: none; }
.log li:first-child .tx { color: var(--ink); }
.log li:nth-child(n+5) { opacity: .55; }
.log .ts { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
.log .tx { font-family: var(--serif); font-size: 15px; }
/* field notes are typed, one key at a time */
.instrument { --type: "Courier Prime", "Courier New", ui-monospace, monospace; }
.log .tx { font-family: var(--type); font-size: 14.5px; line-height: 1.5; }
.caret { display: inline-block; width: .55em; height: 1.05em; margin-left: 1px; vertical-align: -0.18em; background: var(--accent); animation: blink .9s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .caret { animation: none; } }
.log .code { font-family: var(--mono); font-size: 10px; letter-spacing: .06em; padding: 2px 6px; border: 1px solid var(--rule); border-radius: 2px; color: var(--ink-3); white-space: nowrap; }
.log .code.c-hesitate, .log .code.c-click { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.log .code.c-backtrack, .log .code.c-explore { color: var(--indigo); border-color: color-mix(in srgb, var(--indigo) 45%, transparent); }
@media (prefers-reduced-motion: reduce) { .log li { transition: none; opacity: 1; transform: none; } }
.tally { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 18px; padding: 14px 18px; border-top: 1px solid var(--rule-soft); }
.tally .t { display: grid; grid-template-columns: 62px 1fr 18px; align-items: center; gap: 8px; font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .05em; }
.tally i { height: 4px; background: var(--rule-soft); position: relative; border-radius: 2px; overflow: hidden; }
.tally i::after { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--w); background: var(--accent); transition: width .5s; }
.tally b { font-weight: 400; color: var(--ink-2); text-align: right; }
@media (max-width: 520px) { .tally { grid-template-columns: repeat(2, 1fr); } }
.synthesis { border-top: 1px solid var(--rule-soft); padding: 0 18px; max-height: 0; overflow: hidden; transition: max-height .6s ease, padding .4s; }
.synthesis.open { max-height: 420px; padding: 18px; }
.synthesis h4 { font-family: var(--serif); font-weight: 500; font-size: 22px; margin: 8px 0 6px; color: var(--accent); }
.synthesis p { font-size: 14.5px; color: var(--ink-2); margin: 0 0 8px; }
.synthesis .fine { font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); }

/* ---------- genres ---------- */
.range { display: grid; grid-template-columns: 1.2fr 1fr 1fr; border-top: 1px solid var(--ink); }
.range > div { padding: 26px 24px 8px 0; }
.range > div + div { padding-left: 24px; border-left: 1px solid var(--rule); }
.range h3 { font-size: 13px; font-family: var(--mono); font-weight: 400; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-family: var(--serif); font-size: 17px; padding: 6px 14px; border: 1px solid var(--rule); border-radius: 30px; color: var(--ink); background: var(--card); transition: border-color .2s, color .2s; }
.chip:hover { border-color: var(--accent); color: var(--accent); }
.range ul { list-style: none; margin: 0; padding: 0; }
.range li { padding: 8px 0; border-bottom: 1px dashed var(--rule); font-size: 15.5px; color: var(--ink-2); display: flex; justify-content: space-between; gap: 12px; }
.range li span { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
@media (max-width: 900px) { .range { grid-template-columns: 1fr; } .range > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); } }

/* ---------- gestalt demo ---------- */
.mindset-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: start; margin-top: clamp(48px, 7vw, 80px); }
@media (max-width: 900px) { .mindset-grid { grid-template-columns: 1fr; } }
.gestalt { background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); }
.gestalt svg { width: 100%; height: auto; display: block; background-image: radial-gradient(var(--dot) 1px, transparent 1.2px); background-size: 18px 18px; }
.gd { fill: var(--ink-2); transition: transform .8s cubic-bezier(.5,.1,.2,1), fill .4s, opacity .4s, r .4s; }
.gd.hi { fill: var(--accent); }
.gd.dim { fill: var(--ink-3); opacity: .35; }
.gd.big { r: 13px; opacity: 1; }
.gd.gone { opacity: 0; }
@media (prefers-reduced-motion: reduce) { .gd { transition: none; } }
.seg { display: flex; border-bottom: 1px solid var(--rule-soft); overflow-x: auto; }
.seg button { flex: 1; font-family: var(--mono); font-size: 12px; letter-spacing: .04em; padding: 13px 10px; border: 0; border-right: 1px solid var(--rule-soft); background: transparent; color: var(--ink-3); cursor: pointer; white-space: nowrap; }
.seg button:last-child { border-right: 0; }
.seg button:hover { color: var(--ink); }
.seg button[aria-pressed="true"] { color: var(--accent); box-shadow: inset 0 -2px 0 var(--accent); }
.gestalt .cap { padding: 16px 18px; font-size: 15px; color: var(--ink-2); border-top: 1px solid var(--rule-soft); min-height: 96px; }
.gestalt .cap b { color: var(--ink); font-weight: 500; }
.frameworks { list-style: none; margin: 24px 0 0; padding: 0; border-top: 1px solid var(--rule); }
.frameworks li { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--rule); font-size: 15.5px; }
.frameworks li span { font-family: var(--mono); font-size: 11px; color: var(--ink-3); align-self: center; }

/* ---------- writing list ---------- */
.writing { border-top: 1px solid var(--ink); }
.w-row { display: grid; grid-template-columns: 130px 1fr auto; gap: 24px; align-items: baseline; padding: 22px 0; border-bottom: 1px solid var(--rule); text-decoration: none; color: inherit; transition: padding .25s, background .25s; }
a.w-row:hover { padding-left: 12px; color: inherit; }
a.w-row:hover .w-title { color: var(--accent); }
.w-type { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.w-title { font-family: var(--serif); font-size: clamp(19px, 2vw, 24px); line-height: 1.3; transition: color .2s; }
.w-title small { display: block; font-family: var(--sans); font-size: 14.5px; color: var(--ink-2); margin-top: 4px; }
.w-meta { font-family: var(--mono); font-size: 12px; color: var(--ink-3); white-space: nowrap; }
@media (max-width: 640px) { .w-row { grid-template-columns: 1fr; gap: 6px; } }

/* ---------- article pages ---------- */
.essay { max-width: 720px; margin: 0 auto; padding: clamp(48px, 7vw, 88px) 0 clamp(64px, 9vw, 120px); }
.essay h2 { font-size: clamp(24px, 2.8vw, 32px); margin: 56px 0 18px; }
.essay h2 .n { display: block; font-family: var(--mono); font-size: 12px; color: var(--accent); letter-spacing: .08em; margin-bottom: 10px; }
.essay p, .essay li { color: var(--ink-2); font-size: 17.5px; line-height: 1.7; }
.essay strong { color: var(--ink); font-weight: 500; }
.essay ul, .essay ol { padding-left: 22px; }
.essay li { margin-bottom: 10px; }
.essay li::marker { color: var(--accent); }
.essay figure { margin: 32px 0; }
.essay figure img { width: 100%; height: auto; border: 1px solid var(--rule); border-radius: var(--radius); }
.essay figcaption { font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); margin-top: 10px; }
.essay .standfirst { font-family: var(--serif); font-size: clamp(21px, 2.2vw, 25px); line-height: 1.5; color: var(--ink); margin-bottom: 8px; }
.essay .tip { border-left: 2px solid var(--accent); padding: 4px 0 4px 18px; margin: 20px 0; }
.hero-grid { align-items: start; }
.log-hint { font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); padding: 12px 0 4px; transition: opacity .4s; }
.gestalt svg { max-height: 300px; }

/* ---------- strengths ---------- */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.pillar { background: var(--paper); padding: clamp(26px, 3vw, 40px); display: flex; flex-direction: column; gap: 14px; position: relative; transition: background .25s; }
.pillar:hover { background: var(--card); }
.pillar .n { font-family: var(--mono); font-size: 12px; color: var(--accent); letter-spacing: .08em; }
.pillar h3 { font-size: clamp(22px, 2.2vw, 27px); max-width: 15em; }
.pillar p { color: var(--ink-2); font-size: 16px; margin: 0; }
.pillar .proof { margin-top: auto; padding-top: 14px; border-top: 1px dashed var(--rule); font-family: var(--mono); font-size: 12px; color: var(--ink-3); line-height: 1.6; }
.pillar .proof b { color: var(--ink); font-weight: 500; }
.pillar .chips { margin-top: 2px; }
.pillar .chip { font-size: 14px; padding: 3px 11px; }
@media (max-width: 820px) { .pillars { grid-template-columns: 1fr; } }

/* ---------- study flow ---------- */
.flow { display: grid; grid-template-columns: repeat(6, 1fr); position: relative; counter-reset: s; }
.flow::before { content: ""; position: absolute; left: 0; right: 0; top: 9px; height: 1px; background: var(--rule); }
.flow .s { position: relative; padding: 34px 18px 0 0; }
.flow .s::before { content: ""; position: absolute; left: 0; top: 4px; width: 11px; height: 11px; border-radius: 50%; background: var(--paper); border: 1.5px solid var(--ink-3); transition: background .3s, border-color .3s; }
.flow .s:hover::before, .flow .s.key::before { background: var(--accent); border-color: var(--accent); }
.flow .s .n { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: .08em; }
.flow .s h3 { font-size: 20px; margin: 8px 0 10px; }
.flow .s p { font-size: 14.5px; color: var(--ink-2); margin: 0; }
@media (max-width: 1000px) { .flow { grid-template-columns: repeat(3, 1fr); row-gap: 36px; } .flow::before { display: none; } }
@media (max-width: 560px) { .flow { grid-template-columns: 1fr; } }

/* ---------- leading research ---------- */
.lead-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
@media (max-width: 900px) { .lead-grid { grid-template-columns: 1fr; } }
.lead-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.lead-list li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--rule); font-size: 16.5px; color: var(--ink-2); }
.lead-list li span { font-family: var(--mono); font-size: 11px; color: var(--accent); padding-top: 4px; }
.lead-list li b { color: var(--ink); font-weight: 500; }
.proofline { display: flex; flex-wrap: wrap; gap: 10px 36px; margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--rule); }
.proofline div { font-family: var(--mono); font-size: 12px; color: var(--ink-3); }
.proofline b { display: block; font-family: var(--serif); font-weight: 500; font-size: 28px; color: var(--ink); letter-spacing: -.01em; }

/* ---------- hero stats ---------- */
.hero-stats { display: grid; grid-template-columns: repeat(4, auto); justify-content: start; gap: 14px clamp(24px, 3.4vw, 44px); margin: -8px 0 36px; padding-top: 24px; border-top: 1px solid var(--rule); }
.hero-stats div { font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: .02em; line-height: 1.4; }
.hero-stats b { display: block; font-family: var(--serif); font-weight: 500; font-size: clamp(40px, 4.4vw, 56px); color: var(--ink); letter-spacing: -.02em; line-height: 1.05; margin-bottom: 4px; }
.hero-stats div:last-child b { color: var(--accent); }
@media (max-width: 560px) { .hero-stats { grid-template-columns: 1fr 1fr; } }

/* ---------- study lab (toy) ---------- */
.lab { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(24px, 4vw, 48px); align-items: start; }
@media (max-width: 900px) { .lab { grid-template-columns: 1fr; } }
.keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
@media (max-width: 560px) { .keys { grid-template-columns: repeat(2, 1fr); } }
.key {
  position: relative; text-align: left; cursor: pointer; font: inherit; color: var(--ink);
  background: var(--card); border: 1px solid var(--rule); border-radius: 4px;
  padding: 16px 16px 18px; min-height: 124px; display: flex; flex-direction: column; gap: 4px;
  box-shadow: 0 3px 0 var(--rule); transform: translateY(0);
  transition: transform .08s, box-shadow .08s, opacity .25s, border-color .2s;
}
.key:hover { border-color: var(--ink-3); }
.key:active { transform: translateY(3px); box-shadow: 0 0 0 var(--rule); }
.key .led { position: absolute; top: 16px; right: 16px; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft), 0 0 10px color-mix(in srgb, var(--accent) 60%, transparent); transition: background .2s, box-shadow .2s; }
.key .n { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: .08em; }
.key b { font-family: var(--serif); font-weight: 500; font-size: 21px; line-height: 1.2; margin-top: auto; }
.key small { font-size: 13px; color: var(--ink-2); line-height: 1.35; }
.key[aria-pressed="false"] { opacity: .5; box-shadow: 0 1px 0 var(--rule); transform: translateY(2px); }
.key[aria-pressed="false"] .led { background: var(--rule); box-shadow: none; }
.key[aria-pressed="false"] b { text-decoration: line-through; text-decoration-color: var(--accent); text-decoration-thickness: 2px; }
.console { display: flex; flex-direction: column; gap: 14px; }
.console .run { align-self: flex-start; }
.console .run[disabled] { opacity: .6; cursor: progress; }
.receipt {
  position: relative; overflow: hidden; min-height: 420px; padding: 20px 22px 26px;
  background: var(--card); border: 1px solid var(--rule); border-top: 2px dashed var(--rule);
  font-family: var(--mono); font-size: 12.5px; color: var(--ink-2); line-height: 1.55;
}
.r-idle { color: var(--ink-3); position: absolute; inset: 0; display: grid; place-items: center; text-align: center; }
.r-head { color: var(--ink-3); letter-spacing: .06em; text-transform: uppercase; font-size: 11px; padding-bottom: 10px; margin-bottom: 8px; border-bottom: 1px dashed var(--rule); }
.r-line { display: flex; gap: 8px; align-items: baseline; opacity: 0; transform: translateY(-4px); transition: opacity .25s, transform .25s; }
.r-line.show, .r-why.show, .r-total.show { opacity: 1; transform: none; }
.r-line i { flex: 1; border-bottom: 1px dotted var(--rule); transform: translateY(-4px); }
.r-line .ok { color: var(--ink-3); }
.r-line .skip { color: var(--accent); }
.r-why { font-family: var(--serif); font-size: 14px; color: var(--ink); padding: 2px 0 6px 26px; opacity: 0; transition: opacity .3s; }
.r-total { margin-top: 10px; padding: 10px 128px 0 0; min-height: 70px; border-top: 1px dashed var(--rule); opacity: 0; transition: opacity .3s; }
.r-total b { display: block; font-family: var(--serif); font-weight: 500; font-size: 28px; color: var(--ink); line-height: 1.2; }
.r-total span { color: var(--ink-3); }
.stamp {
  position: absolute; right: 18px; bottom: 22px; padding: 6px 12px; border: 2px solid var(--accent); border-radius: 3px;
  font-family: var(--mono); font-weight: 500; font-size: 15px; letter-spacing: .12em; color: var(--accent);
  transform: rotate(-9deg) scale(2.4); opacity: 0; transition: transform .22s cubic-bezier(.5,1.8,.5,1), opacity .15s;
  background: color-mix(in srgb, var(--card) 70%, transparent);
}
.stamp.on { transform: rotate(-9deg) scale(1); opacity: .92; }
.stamp.good { border-color: var(--ink); color: var(--ink); }
.receipt.shake { animation: shake .45s; }
@keyframes shake { 0%,100% { transform: none; } 20% { transform: translateX(-6px) rotate(-.6deg); } 40% { transform: translateX(5px) rotate(.5deg); } 60% { transform: translateX(-4px); } 80% { transform: translateX(3px); } }
@media (prefers-reduced-motion: reduce) { .r-line, .r-why, .r-total, .stamp, .key { transition: none; } .receipt.shake { animation: none; } }

/* ---------- mindset layers ---------- */
.layers { background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); }
.layers-body { display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; }
@media (max-width: 900px) { .layers-body { grid-template-columns: 1fr; } }
.layers svg { width: 100%; height: auto; padding: 18px; background-image: radial-gradient(var(--dot) 1px, transparent 1.2px); background-size: 18px 18px; border-right: 1px solid var(--rule-soft); }
@media (max-width: 900px) { .layers svg { border-right: 0; border-bottom: 1px solid var(--rule-soft); padding: 10px; } }
.layers svg text { font-family: var(--sans); font-size: 14px; fill: var(--ink-2); }
.layers svg .lb-idea { fill: var(--indigo); }
.layers svg .lb-need { fill: var(--accent); }
.layers svg .disc { fill: var(--paper); stroke: var(--ink-3); stroke-width: 1.3; }
.layers svg .disc-top { fill: var(--card); stroke: var(--ink-3); stroke-width: 1.3; }
.layers svg .disc.idea, .layers svg .disc-top.idea { stroke: var(--indigo); stroke-dasharray: 5 4; }
.layers svg .disc.need, .layers svg .disc-top.need { stroke: var(--accent); }
.layers svg .slice { fill: var(--indigo-soft); stroke: var(--ink-2); stroke-width: 1.2; stroke-dasharray: 3 3; }
.layers svg .slice.need { fill: var(--accent-soft); stroke: var(--accent); }
.layers svg .tick { fill: none; stroke: var(--ink); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.layers svg .tick.acc { stroke: var(--accent); }
.layers svg .cross { stroke: var(--accent); stroke-width: 2.2; stroke-linecap: round; }
.layers svg .drop { stroke: var(--ink-3); stroke-width: 1.2; stroke-dasharray: 3 4; }
.layers svg .gap { stroke: var(--accent); stroke-width: 1.6; fill: none; }
.layers svg .gap-t { font-family: var(--mono); font-size: 12px; fill: var(--accent); letter-spacing: .06em; }
.layers svg .mv { transition: transform .9s cubic-bezier(.5,.1,.2,1), opacity .4s; }
@media (prefers-reduced-motion: reduce) { .layers svg .mv { transition: none; } }
.layers-read { padding: clamp(20px, 3vw, 32px); display: flex; flex-direction: column; gap: 20px; }
.layers-read dl { margin: 0; border-top: 1px solid var(--ink); }
.layers-read dl > div { display: grid; grid-template-columns: 110px 1fr; gap: 14px; padding: 10px 0; border-bottom: 1px solid var(--rule-soft); align-items: baseline; }
.layers-read dt { font-family: var(--mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }
.layers-read dl > div.idea dt { color: var(--indigo); }
.layers-read dl > div { transition: opacity .5s; }
#layers[data-state="1"] dl > div.idea, #layers[data-state="1"] dl > div.need { opacity: .35; }
.layers-read dl > div.need dt { color: var(--accent); }
.layers-read dd { margin: 0; font-family: var(--serif); font-size: 17px; color: var(--ink); }
.layers-read dd .ok { font-family: var(--mono); font-size: 11px; color: var(--ink-3); margin-left: 8px; }
.qq { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.qq > div { padding: 14px 16px; background: var(--paper); border-radius: var(--radius); }
.qq .label { display: block; margin-bottom: 6px; color: var(--accent); }
.qq p { margin: 0; font-size: 14.5px; color: var(--ink-2); line-height: 1.45; }
@media (max-width: 480px) { .qq { grid-template-columns: 1fr; } }
.fixrow { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: auto; }
.fixrow .res { font-family: var(--serif); font-size: 26px; color: var(--accent); opacity: 0; transform: translateX(-6px); transition: opacity .4s .5s, transform .4s .5s; }
.fixrow .res.on { opacity: 1; transform: none; }
.mindset-grid .btn { margin-top: 4px; }

/* ---------- log figure (case 03) ---------- */
.fig .cell { fill: var(--accent); opacity: 0; transition: opacity .35s; }
.in .fig .cell, .fig.in .cell { opacity: var(--o); }
.fig .cell-bg { fill: var(--rule-soft); }
.fig .mbar { fill: var(--ink-3); }
.fig .mbar.hi { fill: var(--accent); }
.fig .win { fill: none; stroke: var(--accent); stroke-width: 1.2; stroke-dasharray: 2 3; }
@media (prefers-reduced-motion: reduce) { .fig .cell { opacity: var(--o); transition: none; } }

/* study lab: settings */
.lab > .keys { grid-column: 1; }
.lab { grid-template-rows: auto 1fr; }
.lab > .team-row { grid-column: 1; align-self: start; }
.lab > .console { grid-column: 2; grid-row: 1 / span 2; }
@media (max-width: 900px) { .lab > .console { grid-column: 1; grid-row: auto; } }
.console-btns { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.r-warn { display: flex; gap: 8px; opacity: 0; transition: opacity .25s; }
.r-warn.show { opacity: 1; }
.r-warn span:first-child { color: var(--accent); }
.r-warn span:last-child { font-family: var(--serif); font-size: 14px; color: var(--ink); }
.r-total a { color: var(--accent); font-family: var(--mono); font-size: 12px; }
.key.flick { animation: flick .3s; }
@keyframes flick { 50% { transform: translateY(3px); box-shadow: 0 0 0 var(--rule); } }
@media (prefers-reduced-motion: reduce) { .key.flick { animation: none; } }

/* mindset layers: states */
.layers svg .fade { transition: opacity .5s; }
#layers[data-state="1"] .lay-edge { opacity: .22; }
#layers:not([data-state="2"]) .s-gap { opacity: 0; }
#layers:not([data-state="3"]) .s-ok { opacity: 0; }
.layers-read .state h3 { font-size: clamp(22px, 2.2vw, 26px); margin-bottom: 8px; }
.layers-read .state p { margin: 0; color: var(--ink-2); font-size: 15.5px; min-height: 3.2em; }
#layers .seg button { white-space: nowrap; }

/* ---------- mindset: exploded view ---------- */
.mind { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
@media (max-width: 960px) { .mind { grid-template-columns: 1fr; } }
.mind-text .lede { margin: 20px 0 26px; }
.layer-list { list-style: none; margin: 0 0 22px; padding: 0; border-top: 1px solid var(--ink); }
.layer-list li { display: grid; grid-template-columns: 30px 120px 1fr; gap: 10px; align-items: baseline; padding: 11px 0; border-bottom: 1px solid var(--rule-soft); cursor: default; transition: opacity .25s; }
.layer-list .c { width: 20px; height: 20px; border: 1px solid var(--ink-3); border-radius: 50%; display: grid; place-items: center; font-family: var(--mono); font-size: 11px; color: var(--ink-2); transform: translateY(3px); }
.layer-list b { font-family: var(--serif); font-weight: 500; font-size: 18px; }
.layer-list small { font-size: 14.5px; color: var(--ink-2); }
.layer-list li[data-layer="idea"] .c { border-color: var(--indigo); color: var(--indigo); }
.layer-list li[data-layer="need"] .c { border-color: var(--accent); color: var(--accent); }
@media (max-width: 480px) { .layer-list li { grid-template-columns: 30px 1fr; } .layer-list small { grid-column: 2; } }
.mind[data-hl="idea"] .layer-list li:not([data-layer="idea"]), .mind[data-hl="fe"] .layer-list li:not([data-layer="fe"]),
.mind[data-hl="be"] .layer-list li:not([data-layer="be"]), .mind[data-hl="need"] .layer-list li:not([data-layer="need"]) { opacity: .35; }

.mfig { margin: 0; background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); background-image: radial-gradient(var(--dot) 1px, transparent 1.2px); background-size: 18px 18px; }
.mfig-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; padding: 18px 20px 0; }
.mfig-cap { font-family: var(--serif); font-size: clamp(20px, 2vw, 26px); line-height: 1.25; color: var(--ink); min-height: 2.5em; }
.mfig-cap span { display: inline-block; opacity: 0; filter: blur(4px); animation: wordIn .5s forwards; }
@keyframes wordIn { to { opacity: 1; filter: none; } }
@media (prefers-reduced-motion: reduce) { .mfig-cap span { animation: none; opacity: 1; filter: none; } }
.mfig-count { white-space: nowrap; padding-top: 6px; }
.mfig-count b { color: var(--ink); font-weight: 500; font-size: 16px; }
.mfig svg { width: 100%; height: auto; display: block; }
.mfig svg text { font-family: var(--sans); font-size: 14px; fill: var(--ink-2); }
.mfig .m-grid line { stroke: var(--rule-soft); stroke-width: 1; }
.mfig .disc { fill: var(--paper); stroke: var(--ink-3); stroke-width: 1.3; transition: stroke .25s, opacity .25s; }
.mfig .disc-top { fill: var(--card); stroke: var(--ink-3); stroke-width: 1.3; transition: stroke .25s, opacity .25s; }
.mfig .m-idea .disc, .mfig .m-idea .disc-top { stroke: var(--indigo); stroke-dasharray: 5 4; }
.mfig .m-need .disc, .mfig .m-need .disc-top { stroke: var(--accent); }
.mfig .slice { fill: var(--indigo-soft); stroke: var(--ink-2); stroke-width: 1.2; }
.mfig .slice.ok { fill: var(--accent-soft); stroke: var(--ink); }
.mfig .slice.need { fill: var(--accent-soft); stroke: var(--accent); }
.mfig .tick { fill: none; stroke: var(--ink); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.mfig .tick.acc { stroke: var(--accent); }
.mfig .cross { stroke: var(--accent); stroke-width: 2.2; stroke-linecap: round; }
.mfig .drop { stroke: var(--ink-3); stroke-width: 1.2; }
.mfig .drop.ok { stroke: var(--accent); }
.mfig .pen { stroke-dasharray: 1 1; stroke-dashoffset: 1; opacity: 0; }
.mfig .gap { stroke: var(--accent); stroke-width: 1.6; fill: none; }
.mfig .gap-t { font-family: var(--mono); font-size: 11.5px; fill: var(--accent); letter-spacing: .06em; }
.mfig .leader { fill: none; stroke: var(--ink-3); stroke-width: 1; }
.mfig .num { fill: var(--card); stroke: var(--ink-3); stroke-width: 1; }
.mfig .num-t { font-family: var(--mono); font-size: 10px; fill: var(--ink-2); }
.mfig .m-idea .num { stroke: var(--indigo); } .mfig .m-need .num { stroke: var(--accent); }
.mfig .lb-idea { fill: var(--indigo); } .mfig .lb-need { fill: var(--accent); }
.mfig .m-layer, .mfig .m-call { cursor: pointer; transition: opacity .25s; }
.mind[data-hl="idea"] .mfig .m-layer:not(.m-idea), .mind[data-hl="fe"] .mfig .m-layer:not(.m-fe),
.mind[data-hl="be"] .mfig .m-layer:not(.m-be), .mind[data-hl="need"] .mfig .m-layer:not(.m-need) { opacity: .3; }
.mind[data-hl="fe"] .mfig .m-fe .disc-top, .mind[data-hl="be"] .mfig .m-be .disc-top, .mind[data-hl="fe"] .mfig .m-fe .disc, .mind[data-hl="be"] .mfig .m-be .disc { stroke: var(--ink); }
.mfig-foot { display: flex; align-items: center; gap: 12px; padding: 4px 20px 14px; }
.mfig-foot .label { font-size: 10.5px; }
.mfig-foot input[type="range"] { flex: 1; accent-color: var(--accent); min-width: 0; }
.mfig-status { display: flex; justify-content: space-between; gap: 12px; padding: 12px 20px; border-top: 1px solid var(--rule-soft); font-size: 11px; }
.mfig-status [data-status] { color: var(--accent); }
@media (max-width: 480px) { .mfig-foot .label { display: none; } }

/* ---------- hero: the whole first screen ---------- */
.hero { min-height: calc(100svh - 68px); display: flex; flex-direction: column; justify-content: center; padding: clamp(40px, 6vw, 80px) 0 clamp(72px, 9vw, 110px); }
.hero-main { position: relative; z-index: 1; width: 100%; }
.hero-main h1 { font-size: clamp(42px, 7.4vw, 104px); max-width: 11em; margin: 24px 0 28px; }
.hero-main .lede { max-width: 34em; }
.hero-next { position: absolute; z-index: 1; left: 50%; bottom: 28px; transform: translateX(-50%); display: inline-flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 12px; letter-spacing: .04em; color: var(--ink-3); text-decoration: none; white-space: nowrap; }
.hero-next:hover { color: var(--accent); }
@media (max-width: 560px) { .hero-next { font-size: 11px; white-space: normal; text-align: center; width: calc(100% - 32px); justify-content: center; } }

/* ---------- field notes band ---------- */
.field { padding-top: clamp(56px, 8vw, 96px); }
.field-grid { display: grid; grid-template-columns: 1fr; gap: 28px; }
.field-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end; }
.field-intro .lede { margin: 0; }
@media (max-width: 860px) { .field-intro { grid-template-columns: 1fr; gap: 16px; } }
.field .notes-body { min-height: 300px; }
.field .tally { grid-template-columns: repeat(6, 1fr); }
@media (max-width: 860px) { .field .tally { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 520px) { .field .tally { grid-template-columns: repeat(2, 1fr); } }

/* ---------- compact contents (home page lists), two side by side ---------- */
.twin { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
@media (max-width: 860px) { .twin { grid-template-columns: 1fr; gap: 56px; } }
.twin-col h3 { font-size: clamp(22px, 2.2vw, 28px); margin-bottom: 20px; }
.contents { border-top: 1px solid var(--ink); }
.c-row { display: grid; gap: 6px; padding: 14px 0 15px; border-bottom: 1px solid var(--rule); text-decoration: none; color: inherit; transition: padding .25s; }
.c-meta { display: flex; justify-content: space-between; gap: 16px; font-family: var(--mono); font-size: 11.5px; letter-spacing: .04em; color: var(--ink-3); }
.c-meta b { font-weight: 400; color: var(--accent); white-space: nowrap; }
.c-title { font-family: var(--serif); font-size: 17px; line-height: 1.35; }
a.c-row:hover { padding-left: 8px; color: inherit; }
a.c-row:hover .c-title { color: var(--accent); }
.more-link { display: inline-flex; gap: 8px; margin-top: 22px; font-family: var(--mono); font-size: 13px; color: var(--ink); text-decoration: none; }
.more-link:hover { color: var(--accent); }

/* ---------- own pages: work, writing ---------- */
section.page { padding-top: clamp(40px, 6vw, 72px); }
.page .section-head h1 { font-size: clamp(32px, 4.4vw, 54px); line-height: 1.12; }

/* ---------- study lab: the one setting that matters ---------- */
.team { display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 12.5px; letter-spacing: .02em; padding: 10px 14px; border: 1px solid var(--rule); border-radius: 30px; background: var(--card); color: var(--ink-2); cursor: pointer; transition: color .2s, border-color .2s; }
.team:hover { color: var(--ink); border-color: var(--ink-3); }
.team .led { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); transition: background .2s, box-shadow .2s; }
.team[aria-pressed="false"] { color: var(--ink-3); text-decoration: line-through; text-decoration-color: var(--accent); }
.team[aria-pressed="false"] .led { background: var(--rule); box-shadow: none; }
.mfig-right { display: inline-flex; align-items: center; gap: 14px; }
.mfig-replay { font: inherit; letter-spacing: inherit; text-transform: inherit; background: none; border: 0; padding: 0; color: var(--ink-2); cursor: pointer; }
.mfig-replay:hover { color: var(--accent); }
.mfig-replay[hidden] { display: none; }
.team-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: -8px; }
.team-row span { font-size: 14px; color: var(--ink-3); }
.mindset-grid > * { min-width: 0; }
@media (max-width: 480px) { .gestalt .seg { flex-wrap: wrap; } .gestalt .seg button { flex: 1 1 45%; border-bottom: 1px solid var(--rule-soft); } }
@media (max-width: 420px) { .hero-main h1 { font-size: 9.4vw; } }

/* while a version of the opening is being applied, keep the default words off screen */
.v-pending [data-v], .v-pending .brand-name small { visibility: hidden; }

/* ============================================================
   simple.html: one narrow column, content first
   ============================================================ */
.slim .wrap { max-width: 920px; }
.slim section { padding-top: clamp(64px, 9vw, 112px); }
.slim .kicker { margin-bottom: 14px; }
.s-hero { padding-top: clamp(56px, 9vw, 120px) !important; }
.s-hero h1 { font-size: clamp(44px, 6.4vw, 80px); line-height: 1.04; margin: 22px 0 18px; }
.s-line { font-family: var(--serif); font-size: clamp(22px, 2.5vw, 30px); line-height: 1.3; color: var(--ink); margin: 0 0 22px; max-width: 26em; text-wrap: balance; }
.s-line .why { font-style: normal; color: var(--accent); }
.s-intro { font-size: 17px; line-height: 1.65; color: var(--ink-2); margin: 0; max-width: 38em; }
.s-lead { text-wrap: balance; font-family: var(--serif); font-size: clamp(19px, 1.9vw, 23px); line-height: 1.4; margin: 0 0 28px; max-width: 30em; }

/* results: one card per outcome, the number first */
.r-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 760px) { .r-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 440px) { .r-grid { grid-template-columns: 1fr; } }
.r-card { display: flex; flex-direction: column; gap: 6px; padding: 18px 18px 14px; min-height: 168px; background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); text-decoration: none; color: inherit; transition: border-color .2s, transform .2s; }
.r-card b { font-family: var(--serif); font-weight: 500; font-size: clamp(30px, 3.2vw, 40px); line-height: 1.05; letter-spacing: -.02em; color: var(--ink); }
.r-card.link b { color: var(--accent); }
.r-label { font-size: 14.5px; line-height: 1.4; color: var(--ink-2); }
.r-meta { margin-top: auto; padding-top: 12px; display: flex; justify-content: space-between; gap: 10px; font-family: var(--mono); font-size: 11px; letter-spacing: .03em; color: var(--ink-3); }
.r-case { color: var(--accent); }
a.r-card:hover { border-color: var(--accent); transform: translateY(-2px); color: inherit; }

/* experience: short rows, the CV has the long version */
.x-list { border-top: 1px solid var(--ink); }
.x-row { display: grid; grid-template-columns: 120px 1fr; gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--rule); }
@media (max-width: 560px) { .x-row { grid-template-columns: 1fr; gap: 6px; } }
.x-when { font-family: var(--mono); font-size: 12px; color: var(--ink-3); padding-top: 4px; }
.x-org { display: block; font-family: var(--mono); font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }
.x-row b { display: block; font-family: var(--serif); font-weight: 500; font-size: 21px; margin: 4px 0 6px; }
.x-row p { margin: 0; color: var(--ink-2); font-size: 15.5px; }
.x-more { margin: 20px 0 0; font-size: 15px; color: var(--ink-2); }
.x-more a, .x-row a { color: var(--ink); text-decoration-color: var(--accent); text-underline-offset: 3px; }
html[data-for] .only-neutral { display: none; }

/* play: one toy at a time */
.p-tabs { border: 1px solid var(--rule); border-radius: var(--radius); background: var(--card); margin-bottom: 20px; }
.p-tabs button[aria-selected="true"] { background: var(--ink); color: var(--paper); }
.p-text h3 { font-size: 24px; margin-bottom: 10px; }
.p-text p { color: var(--ink-2); margin: 0 0 18px; }
.p-mind, .p-dots { display: grid; grid-template-columns: 1fr 1.4fr; gap: 28px; align-items: start; }
@media (max-width: 760px) { .p-mind, .p-dots { grid-template-columns: 1fr; } }

/* contact */
.s-cta { text-align: center; padding-bottom: clamp(64px, 9vw, 112px) !important; }
.s-cta h2 { font-size: clamp(32px, 4vw, 46px); }
.s-cta p { color: var(--ink-2); margin: 14px auto 28px; max-width: 28em; text-wrap: balance; }
.s-links { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.s-links a { display: inline-flex; align-items: center; gap: 9px; padding: 11px 18px; border: 1px solid var(--rule); border-radius: 30px; background: var(--card); font-family: var(--mono); font-size: 13px; color: var(--ink); text-decoration: none; transition: border-color .2s, color .2s; }
.s-links a:hover { border-color: var(--accent); color: var(--accent); }
.s-links svg { width: 17px; height: 17px; }

/* field notes pill */
.fn { position: fixed; z-index: 60; right: 18px; bottom: 18px; display: flex; flex-direction: column; align-items: flex-end; gap: 10px; max-width: calc(100vw - 36px); }
.fn-pill { display: inline-flex; align-items: center; gap: 9px; padding: 10px 16px; border: 1px solid var(--rule); border-radius: 30px; background: color-mix(in srgb, var(--card) 88%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: 0 12px 30px -18px rgba(0,0,0,.5); font-family: var(--mono); font-size: 12px; color: var(--ink-2); cursor: pointer; }
.fn-pill b { font-weight: 500; color: var(--accent); }
.fn-pill:hover { color: var(--ink); }
.fn-drawer { width: min(440px, calc(100vw - 36px)); max-height: min(70vh, 640px); overflow: auto; box-shadow: 0 24px 50px -24px rgba(0,0,0,.55); order: -1; }
.fn-drawer[hidden] { display: none; }
.fn-drawer .instrument { margin: 0; }
.fn-drawer .tally { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 440px) { .r-card { min-height: 0; } }