/* ============================================================
   ФИГУРА / FIGURA — design system v2.0
   A patent-drawing aesthetic for Elyneva (design concept).
   Paper, ink, mono lettering, one filament-gold CTA.
   Broken right-angle lines draw themselves; figures assemble
   stroke by stroke. Motion never gates content.
   ============================================================ */

:root {
  /* color */
  --paper: #F4F1E4;
  --sheet: #FBFAF2;
  --ink: #1C1A12;
  --ink-soft: #2B2820;
  --muted: #5E5948;
  --line: rgba(28, 26, 18, 0.16);
  --line-soft: rgba(28, 26, 18, 0.09);
  --signal: #F7B500;          /* filament gold: PRIMARY CTA + figure highlights */
  --signal-hover: #E0A400;
  --signal-ink: #241A05;
  --alert: #B3261E;

  /* type */
  --font-display: "PT Serif", Georgia, serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  /* motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-draw: cubic-bezier(0.32, 0, 0.16, 1);
  --ease-snap: cubic-bezier(0.7, 0, 0.2, 1);
  --d-fast: 200ms;
  --d-med: 480ms;
  --d-draw: 1100ms;

  /* geometry */
  --gutter: clamp(20px, 5vw, 64px);
  --maxw: 1180px;
  --radius: 4px;              /* drafting-table corners: nearly square */
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.0625rem;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
a { color: inherit; }
::selection { background: var(--signal); color: var(--signal-ink); }

/* faint drafting grid on the paper */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.5;
}
main, .site-head, .site-foot, .action-bar { position: relative; z-index: 2; }

/* ---------- typography ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
}
h1.display { font-size: clamp(2.3rem, 6.2vw, 4.6rem); }
h2.display { font-size: clamp(1.75rem, 3.8vw, 2.8rem); }
h3.display { font-size: clamp(1.2rem, 2.2vw, 1.55rem); line-height: 1.2; }

.mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before { content: ""; width: 34px; height: 1.5px; background: var(--ink); flex: none; }
.lead {
  font-size: clamp(1.08rem, 1.6vw, 1.28rem);
  line-height: 1.58;
  color: var(--muted);
  max-width: 46ch;
  margin: 22px 0 0;
}
.muted { color: var(--muted); }
p { max-width: 62ch; }

/* figure marker — "ФИГ. 01 / ..." */
.marker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
}
.marker b { font-weight: 600; border-bottom: 2px solid var(--signal); padding-bottom: 2px; }
.marker i { font-style: normal; color: var(--muted); font-weight: 400; }

/* ---------- layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section + .section { border-top: 1px solid var(--line); }
.grid-12 { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(18px, 2.4vw, 32px); }

/* ---------- header ---------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 241, 228, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1.5px solid var(--ink);
}
.site-head__in {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px var(--gutter);
  display: flex;
  align-items: center;
  gap: 18px;
}
.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  text-decoration: none;
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 9px;
}
.wordmark small {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 400;
}
.site-nav { display: flex; gap: 2px; margin-left: auto; }
.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  padding: 9px 12px;
  border: 1px solid transparent;
  transition: color var(--d-fast), border-color var(--d-fast);
}
.site-nav a:hover { color: var(--ink); border-color: var(--line); }
.site-nav a[aria-current="page"] { color: var(--ink); border-color: var(--ink); }
.langswitch {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  display: flex;
  border: 1.5px solid var(--ink);
  flex: none;
}
.langswitch a, .langswitch span {
  padding: 7px 11px;
  text-decoration: none;
  color: var(--muted);
}
.langswitch span { background: var(--ink); color: var(--paper); font-weight: 600; }
.langswitch a:hover { color: var(--ink); background: var(--sheet); }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1.5px solid var(--ink);
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  position: relative;
  flex: none;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; height: 2px;
  background: var(--ink);
  transition: transform var(--d-fast), opacity var(--d-fast);
}
.nav-toggle span { top: 50%; margin-top: -1px; }
.nav-toggle span::before { left: 0; right: 0; top: -6px; }
.nav-toggle span::after { left: 0; right: 0; top: 6px; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1.5px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  padding: 15px 24px;
  background: transparent;
  color: var(--ink);
  transition: transform var(--d-fast) var(--ease-out),
              background var(--d-fast), color var(--d-fast),
              box-shadow var(--d-fast);
  will-change: transform;
}
.btn .arr { transition: transform var(--d-fast) var(--ease-out); }
.btn:hover .arr { transform: translateX(4px); }
.btn--signal {
  background: var(--signal);
  color: var(--signal-ink);
  border-color: var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
  animation: cta-breathe 3.4s ease-in-out infinite;
}
.btn--signal:hover { background: var(--signal-hover); box-shadow: 2px 2px 0 var(--ink); }
.btn--ghost:hover { background: var(--sheet); }
.btn--small { padding: 10px 16px; font-size: 0.76rem; box-shadow: 3px 3px 0 var(--ink); }
.btn--ondark { border-color: var(--paper); color: var(--paper); }
.btn--ondark:hover { background: rgba(244, 241, 228, 0.08); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}
@keyframes cta-breathe {
  0%, 100% { box-shadow: 4px 4px 0 var(--ink), 0 0 0 0 rgba(247, 181, 0, 0); }
  50% { box-shadow: 4px 4px 0 var(--ink), 0 0 0 7px rgba(247, 181, 0, 0.3); }
}

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(56px, 8vw, 110px) 0 clamp(64px, 8vw, 110px); }
.knot {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.knot-path { stroke: var(--ink); stroke-width: 1.5; fill: none; opacity: 0.22; }
.knot-exit { stroke: var(--signal); stroke-width: 2.5; fill: none; }
.knot-dot { fill: var(--signal); stroke: var(--ink); stroke-width: 1.5; }
html:not(.js) .knot-path, html:not(.js) .knot-exit { stroke-dashoffset: 0 !important; }
html:not(.js) .knot-dot { opacity: 1 !important; }
.hero__copy { position: relative; max-width: 780px; }
.hero__cta { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.spec-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; padding: 0; list-style: none; }
.chip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--sheet);
  border: 1px solid var(--ink);
  padding: 8px 14px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.chip::before { content: ""; width: 7px; height: 7px; background: var(--signal); border: 1px solid var(--ink); flex: none; }



/* redaction peel — the headline reveal */
.redact { display: block; position: relative; width: fit-content; max-width: 100%; }
.redact::after {
  content: "";
  position: absolute;
  inset: 0.04em -0.14em 0.06em -0.14em;
  background: var(--paper);
  transform: scaleX(0);
  transform-origin: left;
}
.js .redact.play::after { animation: peel 0.9s var(--ease-snap) calc(0.12s * var(--i, 0)) both; }
@keyframes peel {
  0%   { transform: scaleX(0); transform-origin: left; }
  45%  { transform: scaleX(1); transform-origin: left; }
  55%  { transform: scaleX(1); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

/* ---------- route rail (scroll progress as a route) ---------- */
.route-rail { display: none; }
.route-edge {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  z-index: 55;
  background: var(--line);
  pointer-events: none;
}
.route-edge .fill { display: block; width: 100%; height: 0%; background: var(--signal); }

/* ---------- spec strip (trust) ---------- */
.spec { border-top: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink); background: var(--sheet); }
.spec__in { display: grid; grid-template-columns: repeat(4, 1fr); }
.spec__cell { padding: 24px clamp(16px, 2.4vw, 34px); border-left: 1px solid var(--line); }
.spec__cell:first-child { border-left: 0; }
.spec__cell .k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 8px;
}
.spec__cell b { font-size: clamp(1.2rem, 2vw, 1.6rem); font-weight: 700; line-height: 1.15; display: block; }
.spec__cell span:last-child { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); letter-spacing: 0.06em; }

/* ---------- figure frame ---------- */
.fig {
  border: 1.5px solid var(--ink);
  background: var(--sheet);
  position: relative;
}
.fig__cap {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  border-top: 1.5px solid var(--ink);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.fig__cap b { color: var(--ink); font-weight: 600; }
.fig svg { display: block; width: 100%; height: auto; }

/* stroke-draw figure system */
.fig-draw path, .fig-draw circle, .fig-draw rect, .fig-draw line, .fig-draw polyline, .fig-draw polygon {
  fill: none;
  stroke: var(--ink);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.fig-draw .thin { stroke-width: 1.3; }
.fig-draw .gold { stroke: var(--signal); }
.fig-draw .goldfill { fill: var(--signal); stroke: var(--ink); stroke-width: 1.5; }
.fig-draw .leader { stroke-width: 1.1; }
.fig-draw .num {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.06em;
  fill: var(--ink);
  stroke: none;
}
.js .fig-draw .strokes { stroke-dasharray: var(--len, 480); stroke-dashoffset: var(--len, 480); }
.js .fig-draw.drawn .strokes {
  stroke-dashoffset: 0;
  transition: stroke-dashoffset var(--d-draw) var(--ease-draw);
  transition-delay: var(--wait, 0ms);
}
.js .fig-draw .num, .js .fig-draw .goldfill { opacity: 0; }
.js .fig-draw.drawn .num {
  opacity: 1;
  transition: opacity var(--d-med) var(--ease-out);
  transition-delay: calc(var(--wait, 0ms) + 400ms);
}
.js .fig-draw.drawn .goldfill {
  opacity: 1;
  transition: opacity var(--d-med) var(--ease-out);
  transition-delay: calc(var(--wait, 0ms) + 300ms);
}
/* hard end-state: content never gated on motion */
.js .fig-draw.settled .strokes { stroke-dashoffset: 0; transition: none; }
.js .fig-draw.settled .num, .js .fig-draw.settled .goldfill { opacity: 1; transition: none; }

/* ---------- numeral schedule ---------- */
.schedule { margin-top: clamp(36px, 5vw, 56px); border-top: 1.5px solid var(--ink); }
.schedule__row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.schedule__row .n {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}
.schedule__row h3 { margin: 0 0 6px; font-size: 1.2rem; }
.schedule__row p { margin: 0; color: var(--muted); font-size: 0.98rem; }

/* ---------- compare: loop vs route ---------- */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(16px, 2.4vw, 28px); margin-top: clamp(32px, 4vw, 48px); }
.cmp-card { border: 1.5px solid var(--ink); background: var(--sheet); }
.cmp-card svg { display: block; width: 100%; height: auto; }
.cmp-card .sq { stroke: var(--muted); stroke-width: 1.6; fill: none; }
.cmp-card .st { stroke: var(--signal); stroke-width: 2.2; fill: none; }
.cmp-card .lab {
  border-top: 1.5px solid var(--ink);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.cmp-card .lab b { font-size: 1.05rem; }
.cmp-card .lab span { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }

/* ---------- steps (order of events) ---------- */
.steps { counter-reset: step; margin-top: clamp(30px, 4vw, 48px); border-top: 1.5px solid var(--ink); }
.step {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.step .s-num { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.14em; color: var(--muted); padding-top: 7px; text-transform: uppercase; }
.step .s-num::before { counter-increment: step; content: "0" counter(step); display: block; font-size: 1.7rem; color: var(--ink); font-weight: 600; letter-spacing: 0.02em; }
.step h3 { margin: 0 0 8px; }
.step p { margin: 0; color: var(--muted); max-width: 58ch; }

/* ---------- quiz sample ---------- */
.quiz-sample {
  border: 1.5px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(28px, 4vw, 56px);
  padding: clamp(28px, 4.6vw, 60px);
  align-items: center;
}
.quiz-sample .eyebrow { color: rgba(244, 241, 228, 0.6); }
.quiz-sample .eyebrow::before { background: var(--signal); }
.quiz-sample h2 { margin: 0; }
.quiz-sample p { color: rgba(244, 241, 228, 0.7); }
.quiz-card { background: var(--paper); color: var(--ink); border: 1.5px solid var(--paper); padding: clamp(20px, 3vw, 34px); }
.quiz-card .q-num { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.quiz-card .q-text { font-weight: 700; font-size: clamp(1.25rem, 2.2vw, 1.6rem); line-height: 1.22; margin: 12px 0 20px; }
.quiz-card ul { list-style: none; margin: 0; padding: 0; }
.quiz-card li {
  border: 1px solid var(--ink);
  border-bottom-width: 1px;
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  transition: background var(--d-fast);
}
.quiz-card li + li { border-top: 0; }
.quiz-card li:hover { background: var(--sheet); }
.quiz-card li::before { content: "□ "; color: var(--muted); }
.quiz-card .q-foot { margin-top: 16px; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; color: var(--muted); }

/* ---------- feature figures (services) ---------- */
.feature {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(18px, 2.4vw, 32px);
  align-items: center;
  padding: clamp(44px, 6vw, 84px) 0;
}
.feature + .feature { border-top: 1px solid var(--line); }
.feature__art { grid-column: 1 / 6; }
.feature__copy { grid-column: 7 / 13; }
.feature--flip .feature__art { grid-column: 8 / 13; order: 2; }
.feature--flip .feature__copy { grid-column: 1 / 7; order: 1; }
.feature__copy h2 { margin: 0 0 16px; }
.feature__copy p { color: var(--muted); margin: 0 0 14px; }
.tick-list { list-style: none; margin: 18px 0 0; padding: 0; }
.tick-list li {
  display: flex;
  gap: 12px;
  font-size: 0.98rem;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
}
.tick-list li::before {
  content: "→";
  font-family: var(--font-mono);
  color: var(--ink);
  flex: none;
}

/* ---------- ethics ---------- */
.ethics {
  border: 1.5px solid var(--ink);
  background: var(--sheet);
  padding: clamp(26px, 4vw, 48px);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(18px, 3vw, 36px);
  align-items: start;
}
.ethics__icon {
  width: 52px; height: 52px;
  border: 1.5px solid var(--ink);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--ink);
  background: var(--signal);
}
.ethics h2 { margin: 0 0 12px; }
.ethics p { margin: 0; color: var(--muted); }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--ink);
  color: var(--paper);
  border: 1.5px solid var(--ink);
  padding: clamp(40px, 6vw, 84px) clamp(26px, 5vw, 72px);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band h2 { margin: 0 auto; max-width: 20ch; }
.cta-band p { color: rgba(244, 241, 228, 0.7); margin: 18px auto 0; max-width: 48ch; }
.cta-band .btn { margin-top: 30px; }
.cta-band .fine { margin-top: 18px; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(244, 241, 228, 0.55); }

/* ---------- gallery of figures ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 36px; }
.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  background: transparent;
  border: 1.5px solid var(--line);
  border-radius: 0;
  padding: 9px 18px;
  cursor: pointer;
  transition: all var(--d-fast);
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); }
.filter-btn[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.g-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(14px, 2vw, 26px); }
.g-item {
  border: 1.5px solid var(--ink);
  padding: 0;
  background: var(--sheet);
  cursor: zoom-in;
  text-align: left;
  transition: box-shadow var(--d-fast);
}
.g-item:hover { box-shadow: 5px 5px 0 var(--ink); }
.g-item svg { display: block; width: 100%; height: auto; }
.g-item figcaption {
  border-top: 1.5px solid var(--ink);
  padding: 9px 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.g-item figcaption b { color: var(--ink); font-weight: 600; }
.g-item[hidden] { display: none; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(28, 26, 18, 0.93);
  display: grid;
  place-items: center;
  padding: 24px;
}
.lightbox[hidden] { display: none; }
.lightbox .lb-stage { max-width: min(880px, 92vw); width: 100%; }
.lightbox .lb-sheet { background: var(--paper); border: 1.5px solid var(--paper); }
.lightbox .lb-sheet svg { display: block; width: 100%; height: auto; max-height: 72vh; }
.lightbox figcaption { color: var(--paper); text-align: center; margin-top: 14px; font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; }
.lb-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px; height: 52px;
  border: 1.5px solid rgba(244, 241, 228, 0.5);
  border-radius: 0;
  background: transparent;
  color: var(--paper);
  font-size: 1.3rem;
  cursor: pointer;
  transition: background var(--d-fast);
}
.lb-btn:hover { background: rgba(244, 241, 228, 0.12); }
.lb-prev { left: 18px; }
.lb-next { right: 18px; }
.lb-close { position: absolute; top: 18px; right: 18px; transform: none; width: 46px; height: 46px; font-size: 1.1rem; }

/* ---------- about ---------- */
.principles { margin-top: clamp(30px, 4vw, 48px); border-top: 1.5px solid var(--ink); }
.principle { display: grid; grid-template-columns: 90px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.principle .n { font-family: var(--font-mono); font-size: 1.05rem; font-weight: 600; }
.principle h3 { margin: 0 0 8px; }
.principle p { margin: 0; color: var(--muted); }
.lang-badge {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  border: 1.5px solid var(--ink);
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.lang-badge::before { content: ""; width: 9px; height: 9px; background: var(--signal); border: 1px solid var(--ink); }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4vw, 64px); align-items: start; }
.form { display: grid; gap: 18px; }
.field label { display: block; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink);
  background: var(--sheet);
  border: 1.5px solid var(--ink);
  border-radius: 0;
  padding: 14px 16px;
  transition: box-shadow var(--d-fast);
}
.field input:focus, .field textarea:focus { outline: none; box-shadow: 3px 3px 0 var(--ink); }
.field .err { display: none; color: var(--alert); font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em; margin-top: 6px; }
.field.invalid input, .field.invalid textarea { border-color: var(--alert); }
.field.invalid .err { display: block; }
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.form__fail { color: var(--alert); font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.04em; }
.form__note { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.04em; color: var(--muted); }
.form-success { border: 1.5px solid var(--ink); background: var(--sheet); padding: clamp(26px, 4vw, 44px); text-align: center; box-shadow: 6px 6px 0 var(--signal); }
.form-success h2 { margin: 0 0 12px; }
.form-success p { margin: 0 auto; color: var(--muted); max-width: 46ch; }
.contact-facts { border-top: 1.5px solid var(--ink); }
.contact-facts__row { display: grid; grid-template-columns: 150px 1fr; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-facts__row dt { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); padding-top: 4px; }
.contact-facts__row dd { margin: 0; font-weight: 700; }
.contact-facts a { color: var(--ink); text-decoration-color: var(--signal); text-underline-offset: 3px; }

/* ---------- action bar (mobile) ---------- */
.action-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(244, 241, 228, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1.5px solid var(--ink);
}
.action-bar__meta { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); line-height: 1.5; }
.action-bar .btn { padding: 12px 16px; font-size: 0.74rem; white-space: nowrap; }

.mail-link:not([href]) { cursor: text; }

/* ---------- footer ---------- */
.site-foot { margin-top: clamp(64px, 9vw, 120px); background: var(--ink); color: var(--paper); border-top: 1.5px solid var(--ink); }
.site-foot__in {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(44px, 6vw, 72px) var(--gutter) 36px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(24px, 4vw, 56px);
}
.site-foot .wordmark { color: var(--paper); }
.site-foot .wordmark small { color: rgba(244, 241, 228, 0.55); }
.site-foot p { color: rgba(244, 241, 228, 0.6); font-size: 0.92rem; }
.site-foot h4 { margin: 0 0 14px; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(244, 241, 228, 0.5); font-weight: 500; }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.site-foot ul a { color: var(--paper); text-decoration: none; font-size: 0.95rem; }
.site-foot ul a:hover { text-decoration: underline; text-decoration-color: var(--signal); text-underline-offset: 3px; }
.site-foot__base {
  border-top: 1px solid rgba(244, 241, 228, 0.16);
  padding: 18px var(--gutter) 24px;
  max-width: var(--maxw);
  margin: 0 auto;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(244, 241, 228, 0.5);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
}

/* ---------- reveal system ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity var(--d-med) var(--ease-out), transform var(--d-med) var(--ease-out); transition-delay: calc(var(--i, 0) * 65ms); }
.js .reveal.revealed { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (min-width: 1180px) {
  .route-rail {
    display: block;
    position: fixed;
    top: 0; bottom: 0;
    left: max(18px, calc(50vw - var(--maxw) / 2 - 46px));
    width: 56px;
    z-index: 40;
    pointer-events: none;
  }
  .route-rail svg { width: 100%; height: 100%; }
  .route-rail .rail-line { stroke: var(--line); stroke-width: 1.5; fill: none; }
  .route-rail .rail-fill { stroke: var(--ink); stroke-width: 1.5; fill: none; }
  .route-rail .rail-dot { fill: var(--signal); stroke: var(--ink); stroke-width: 1.2; }
  .route-rail .rail-tick { stroke: var(--muted); stroke-width: 1.2; }
  .route-edge { display: none; }
}
@media (max-width: 960px) {
  .quiz-sample { grid-template-columns: 1fr; }
  .feature__art, .feature__copy,
  .feature--flip .feature__art, .feature--flip .feature__copy { grid-column: 1 / 13; order: initial; }
  .feature--flip .feature__art { order: 2; }
  .contact-grid { grid-template-columns: 1fr; }
  .compare { grid-template-columns: 1fr; }
  .g-grid { grid-template-columns: repeat(2, 1fr); }
  .spec__in { grid-template-columns: repeat(2, 1fr); }
  .spec__cell:nth-child(3) { border-left: 0; }
  .spec__cell { border-top: 1px solid var(--line); }
  .spec__cell:nth-child(-n+2) { border-top: 0; }
  .site-foot__in { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  body { padding-bottom: 84px; }
  .action-bar { display: flex; }
  .site-head .btn { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .site-nav {
    position: fixed;
    top: 69px; left: 0; right: 0;
    flex-direction: column;
    background: var(--paper);
    border-bottom: 1.5px solid var(--ink);
    padding: 10px var(--gutter) 20px;
    gap: 2px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--d-fast), transform var(--d-fast);
  }
  .nav-open .site-nav { opacity: 1; transform: none; pointer-events: auto; }
  .site-nav a { padding: 13px 10px; font-size: 0.9rem; }
  .langswitch { margin-left: auto; }
  .nav-toggle { margin-left: 0; }
  .g-grid { grid-template-columns: 1fr; }
  .ethics { grid-template-columns: 1fr; }
  .step { grid-template-columns: 70px 1fr; }
  .contact-facts__row { grid-template-columns: 1fr; gap: 4px; }
  .schedule__row { grid-template-columns: 64px 1fr; }
  .principle { grid-template-columns: 60px 1fr; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }
  .js .reveal { opacity: 1; transform: none; }
  .js .fig-draw .strokes { stroke-dashoffset: 0; }
  .js .fig-draw .num, .js .fig-draw .goldfill { opacity: 1; }
  .knot-path, .knot-exit { stroke-dashoffset: 0 !important; }
  .redact::after { animation: none !important; transform: scaleX(0) !important; }
  .knot-dot { opacity: 1 !important; }
}

/* ---------- consent bar ---------- */
/* z-index 100 — выше .action-bar (60) и всего остального на сайте (max 90).
   На мобильном баннер накрывает нижний CTA: решение о счётчике в один тап,
   и лучше на секунду закрыть кнопку, чем показать баннер под ней. */
.consent-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 100;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  padding: 14px var(--gutter) calc(14px + env(safe-area-inset-bottom));
  background: var(--sheet);
  border-top: 1.5px solid var(--ink);
  box-shadow: 0 -4px 24px rgba(28, 26, 18, 0.10);
}
.consent-bar p {
  margin: 0;
  flex: 1 1 320px;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--ink-soft);
}
.consent-bar a { color: var(--ink); text-underline-offset: 3px; }
.consent-bar__actions { display: flex; gap: 10px; flex: 0 0 auto; }

@media (max-width: 560px) {
  .consent-bar { padding-left: 16px; padding-right: 16px; }
  .consent-bar p { font-size: 0.8rem; flex-basis: 100%; }
  .consent-bar__actions { width: 100%; }
  /* min-height 44px — палец, а не курсор: .btn--small рассчитан на десктоп
     и даёт здесь 37px. */
  .consent-bar__actions .btn {
    flex: 1;
    justify-content: center;
    align-items: center;
    min-height: 44px;
  }
}