/* ────────────────────────────────────────────────────────────────
   Rubedo Discussion — сайт загрузки и презентации.
   Ruby Pixel Design System: гранатовая тьма, строгие прямые углы,
   решётка, моно-метки, пиксельные уголки и интерактивные анимации.
   ──────────────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

@property --acc { syntax: '<color>'; inherits: true; initial-value: #e62842; }
@property --p { syntax: '<number>'; inherits: true; initial-value: 0; }
@property --on { syntax: '<number>'; inherits: true; initial-value: 0; }
@property --x { syntax: '<percentage>'; inherits: true; initial-value: 50%; }

:root {
  --acc: #e62842;
  --acc-glow: rgba(230, 40, 66, 0.45);
  --acc-deep: #780d1a;
  --acc-light: #ff7588;
  --bg: #080507;
  --bg2: #110b0f;
  --bg3: #1a1016;
  --bg-card: rgba(18, 12, 16, 0.75);
  --text: #fcf6f8;
  --text2: #ded2d7;
  --muted: #9c8c93;
  --border: rgba(255, 255, 255, 0.08);
  --border2: rgba(255, 255, 255, 0.16);
  --ok: #22c55e;
  --live: #e62842;
  --font: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;
  --pad: clamp(20px, 5vw, 72px);
  --maxw: 1320px;
  --top-h: 64px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  color-scheme: dark;
}

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

html {
  background: var(--bg);
  scroll-behavior: smooth;
  scroll-padding-top: var(--top-h);
  -webkit-text-size-adjust: 100%;
}

body {
  font: 400 16px/1.6 var(--font);
  color: var(--text2);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: clip;
  position: relative;
  background-image:
    radial-gradient(1200px 700px at 85% -10%, color-mix(in srgb, var(--acc) 18%, transparent), transparent 65%),
    radial-gradient(900px 600px at -10% 40%, color-mix(in srgb, var(--acc) 10%, transparent), transparent 60%),
    radial-gradient(1000px 800px at 50% 100%, color-mix(in srgb, var(--acc) 12%, transparent), transparent 70%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: auto, auto, auto, 48px 48px, 48px 48px;
  transition: --acc 0.3s ease;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
::selection { background: color-mix(in srgb, var(--acc) 60%, transparent); color: #fff; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 3px; }
.mono { font-family: var(--mono); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #24171e; border: 2px solid var(--bg); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--acc); }

/* ── Декоративные пиксельные углы (Pixel Corners) ── */
.pc { position: relative; }
.pc::after {
  content: ''; position: absolute; inset: -1px; pointer-events: none; --c: var(--acc); --s: 6px;
  background:
    linear-gradient(var(--c), var(--c)) top left / var(--s) var(--s) no-repeat,
    linear-gradient(var(--c), var(--c)) top right / var(--s) var(--s) no-repeat,
    linear-gradient(var(--c), var(--c)) bottom left / var(--s) var(--s) no-repeat,
    linear-gradient(var(--c), var(--c)) bottom right / var(--s) var(--s) no-repeat;
  transition: filter 0.25s ease, inset 0.25s ease;
  z-index: 2;
}
.pc:hover::after {
  filter: drop-shadow(0 0 6px var(--acc));
}

/* ── Базовые типографические элементы ── */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; font: 700 12px/1 var(--mono);
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted);
}
.eyebrow::before {
  content: ''; width: 7px; height: 7px; background: var(--acc);
  box-shadow: 0 0 10px var(--acc); flex: none;
  animation: pulse-dot 2.4s ease-in-out infinite alternate;
}
@keyframes pulse-dot {
  0% { transform: scale(0.9); opacity: 0.7; }
  100% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 14px var(--acc); }
}
.eyebrow b { color: var(--acc); font-weight: 700; }

.h2 { font: 800 clamp(34px, 5vw, 64px)/1.04 var(--font); color: var(--text); letter-spacing: -0.025em; margin-top: 18px; }
.h2 em { font-style: normal; color: var(--acc); text-shadow: 0 0 30px color-mix(in srgb, var(--acc) 40%, transparent); }
.sub { max-width: 62ch; margin-top: 18px; font-size: clamp(16px, 1.4vw, 18px); color: var(--muted); line-height: 1.65; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.sec { position: relative; padding: clamp(90px, 14vh, 160px) 0; }

/* ── Кнопки с неоновым свечением и тактильным откликом ── */
.btn {
  --h: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  height: var(--h); padding: 0 28px; font: 700 13px/1 var(--mono); letter-spacing: 0.14em;
  text-transform: uppercase; white-space: nowrap; cursor: pointer; border: 1px solid var(--border2);
  color: var(--text); background: rgba(255, 255, 255, 0.03); backdrop-filter: blur(8px);
  position: relative; overflow: hidden;
  transition: transform 0.16s var(--ease), box-shadow 0.16s, background 0.18s, border-color 0.18s, color 0.18s;
}
.btn::before {
  content: ''; position: absolute; top: -50%; left: -60%; width: 40%; height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
  transform: rotate(25deg); opacity: 0; pointer-events: none;
  transition: opacity 0.2s;
}
.btn:hover::before {
  opacity: 1; animation: btn-shimmer 1.1s ease-in-out infinite;
}
@keyframes btn-shimmer {
  0% { transform: translateX(0) rotate(25deg); }
  100% { transform: translateX(380%) rotate(25deg); }
}
.btn svg { width: 19px; height: 19px; flex: none; transition: transform 0.2s var(--ease); }
.btn:hover svg { transform: translateY(-2px); }
.btn:hover { border-color: var(--acc); background: color-mix(in srgb, var(--acc) 14%, transparent); color: #fff; }

.btn-primary {
  background: var(--acc); border-color: var(--acc); color: #fff;
  box-shadow: 0 4px 0 var(--acc-deep), 0 12px 32px color-mix(in srgb, var(--acc) 45%, transparent);
}
.btn-primary:hover {
  background: color-mix(in srgb, var(--acc) 90%, #fff);
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--acc-deep), 0 18px 45px color-mix(in srgb, var(--acc) 55%, transparent);
}
.btn-primary:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 var(--acc-deep), 0 6px 18px color-mix(in srgb, var(--acc) 30%, transparent);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border2);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--text2);
}

.btn-sm { --h: 40px; padding: 0 18px; font-size: 11.5px; gap: 8px; }
.btn-xl { --h: 64px; padding: 0 36px; font-size: 14.5px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin-top: 22px; }
.chips li {
  font: 700 11px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--text2);
  padding: 8px 12px; border: 1px solid var(--border2); background: rgba(255, 255, 255, 0.02);
  transition: all 0.2s;
}
.chips li:first-child {
  border-color: color-mix(in srgb, var(--acc) 60%, transparent);
  color: var(--text); background: color-mix(in srgb, var(--acc) 14%, transparent);
}
.chips.acc-chips li {
  border-color: color-mix(in srgb, var(--acc) calc(var(--on) * 60%), var(--border2));
  color: color-mix(in srgb, var(--text) calc(var(--on) * 100%), var(--muted));
  background: color-mix(in srgb, var(--acc) calc(var(--on) * 12%), transparent);
}

/* ── Верхняя панель (Header) ── */
.top {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--top-h); display: flex;
  align-items: center; gap: 28px; padding: 0 var(--pad);
  background: rgba(8, 5, 7, 0.82); backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  transition: border-color 0.3s ease;
}
.brand {
  display: inline-flex; align-items: center; gap: 11px; font: 800 13px/1 var(--mono);
  letter-spacing: 0.22em; color: var(--text);
}
.brand img {
  width: 26px; height: 26px; image-rendering: pixelated;
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--acc) 75%, transparent));
  transition: transform 0.2s var(--ease);
}
.brand:hover img { transform: rotate(15deg) scale(1.1); }
.brand .b2 { color: var(--acc); transition: color 0.3s; }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  font: 700 11.5px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--muted); padding: 10px 14px; border: 1px solid transparent;
  transition: color 0.18s, border-color 0.18s, background 0.18s;
}
.nav a:hover { color: var(--text); border-color: var(--border2); background: rgba(255, 255, 255, 0.02); }

.top-progress {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
  background: linear-gradient(90deg, var(--acc), #ff6b81);
  transform-origin: 0 50%; transform: scaleX(0);
  box-shadow: 0 0 14px var(--acc);
}

/* ── HERO Секция ── */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh; display: grid; align-items: center;
  padding: calc(var(--top-h) + 40px) 0 90px; overflow: hidden; view-timeline: --hero block;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }

/* Интерактивный канвас для рубиновых искр / частиц */
.hero-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 1;
}

.glow { position: absolute; border-radius: 50%; filter: blur(70px); }
.glow.g1 {
  width: 50vw; height: 50vw; right: 2vw; top: 4vh;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--acc) 28%, transparent), transparent);
  animation: glow-pulse-1 8s ease-in-out infinite alternate;
}
.glow.g2 {
  width: 36vw; height: 36vw; left: -10vw; bottom: -8vw;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--acc) 14%, transparent), transparent);
  animation: glow-pulse-2 10s ease-in-out infinite alternate;
}
@keyframes glow-pulse-1 {
  0% { transform: scale(0.9) translate(0, 0); opacity: 0.7; }
  100% { transform: scale(1.15) translate(-3vw, 2vh); opacity: 1; }
}
@keyframes glow-pulse-2 {
  0% { transform: scale(1) translate(0, 0); opacity: 0.6; }
  100% { transform: scale(1.2) translate(2vw, -3vh); opacity: 0.9; }
}

.floor {
  position: absolute; left: -40%; right: -40%; bottom: 0; height: 48%; perspective: 520px;
  perspective-origin: 50% 0%; overflow: hidden;
  -webkit-mask-image: linear-gradient(to top, #000 12%, transparent 92%);
  mask-image: linear-gradient(to top, #000 12%, transparent 92%);
}
.floor-plane {
  position: absolute; left: 0; right: 0; top: 0; height: 300%; transform-origin: 50% 0;
  transform: rotateX(74deg);
  background-image:
    linear-gradient(color-mix(in srgb, var(--acc) 50%, transparent) 2px, transparent 2px),
    linear-gradient(90deg, color-mix(in srgb, var(--acc) 50%, transparent) 2px, transparent 2px);
  background-size: 72px 72px; animation: floor-run 3.2s linear infinite;
}
@keyframes floor-run { from { background-position: 0 0; } to { background-position: 0 72px; } }

.hero-in {
  position: relative; z-index: 2; width: 100%; max-width: var(--maxw); margin: 0 auto;
  padding: 0 var(--pad); display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  gap: 40px; align-items: center;
}
.h1 {
  font: 800 clamp(44px, 5.6vw, 86px)/0.98 var(--font); color: var(--text);
  letter-spacing: -0.035em; margin-top: 24px;
}
.h1 .ln { display: block; }
.h1 em {
  font-style: normal; color: var(--acc);
  text-shadow: 0 0 45px color-mix(in srgb, var(--acc) 55%, transparent);
  transition: color 0.3s;
}
.hero .lead {
  max-width: 56ch; margin-top: 26px; font-size: clamp(17px, 1.5vw, 20px);
  color: var(--text2); line-height: 1.6;
}
.cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; align-items: center; }
.meta { margin-top: 18px; font-size: 13px; color: var(--muted); letter-spacing: 0.06em; }
.meta b { color: var(--text2); font-weight: 600; }
.ver { color: var(--acc); font-weight: 700; }

/* ── HUD панель в Hero: статус голоса и шумодава ── */
.hero-hud {
  display: inline-flex; flex-direction: column; gap: 10px; margin-top: 32px;
  padding: 16px 20px; background: rgba(18, 11, 16, 0.7); border: 1px solid var(--border2);
  backdrop-filter: blur(12px); max-width: 480px;
}
.hero-hud .hud-status {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.hero-hud .hud-badge {
  display: flex; align-items: center; gap: 8px; font-size: 11px; font-weight: 700;
  letter-spacing: 0.18em; color: var(--text);
}
.live-pulse {
  width: 8px; height: 8px; border-radius: 50%; background: var(--ok);
  box-shadow: 0 0 10px var(--ok); animation: live-blink 1.8s infinite;
}
@keyframes live-blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}
.hero-hud .hud-ping {
  font-size: 11px; color: var(--muted); display: flex; align-items: center; gap: 6px;
}
.ping-dot { width: 5px; height: 5px; background: var(--ok); border-radius: 50%; }

.hud-wave {
  display: flex; align-items: center; gap: 3px; height: 28px; padding: 4px 0;
}
.hud-wave .wb {
  flex: 1; height: 20%; background: var(--acc); border-radius: 1px;
  animation: wave-bar 1.2s ease-in-out infinite alternate;
  box-shadow: 0 0 8px color-mix(in srgb, var(--acc) 40%, transparent);
}
.hud-wave .wb:nth-child(2) { animation-delay: 0.15s; }
.hud-wave .wb:nth-child(3) { animation-delay: 0.3s; }
.hud-wave .wb:nth-child(4) { animation-delay: 0.45s; }
.hud-wave .wb:nth-child(5) { animation-delay: 0.6s; }
.hud-wave .wb:nth-child(6) { animation-delay: 0.75s; }
.hud-wave .wb:nth-child(7) { animation-delay: 0.9s; }
.hud-wave .wb:nth-child(8) { animation-delay: 0.35s; }
.hud-wave .wb:nth-child(9) { animation-delay: 0.5s; }
.hud-wave .wb:nth-child(10) { animation-delay: 0.2s; }
.hud-wave .wb:nth-child(11) { animation-delay: 0.7s; }
.hud-wave .wb:nth-child(12) { animation-delay: 0.4s; }
.hud-wave .wb:nth-child(13) { animation-delay: 0.85s; }
.hud-wave .wb:nth-child(14) { animation-delay: 0.25s; }
.hud-wave .wb:nth-child(15) { animation-delay: 0.65s; }
.hud-wave .wb:nth-child(16) { animation-delay: 0.1s; }

@keyframes wave-bar {
  0% { height: 15%; opacity: 0.4; }
  50% { height: 85%; opacity: 1; }
  100% { height: 35%; opacity: 0.6; }
}

.hud-info {
  display: flex; gap: 16px; font-size: 11px; letter-spacing: 0.12em; color: var(--muted);
  border-top: 1px solid var(--border); padding-top: 8px; margin-top: 4px;
}
.hud-val { color: var(--text); font-weight: 700; }

/* ── 3D Рубиновый кристалл и гироскоп ── */
.hero-art { position: relative; height: min(64vh, 620px); display: grid; place-items: center; perspective: 1000px; }
.crystal-tilt {
  transform-style: preserve-3d;
  transform: rotateX(calc(var(--my, 0) * -10deg)) rotateY(calc(var(--mx, 0) * 14deg));
  transition: transform 0.3s var(--ease);
}
.crystal-spin {
  position: relative; width: 150px; height: 320px; transform-style: preserve-3d;
  animation: crystal-spin 12s linear infinite;
}
.crystal-spin i {
  position: absolute; left: 7px; top: 0; width: 136px; height: 320px;
  clip-path: polygon(50% 0, 100% 26%, 50% 100%, 0 26%);
  background: linear-gradient(165deg, rgba(255, 120, 136, 0.94), color-mix(in srgb, var(--acc) 85%, #000) 46%, rgba(70, 6, 16, 0.98));
  box-shadow: inset 0 0 40px rgba(255, 170, 180, 0.4);
  backface-visibility: visible;
}
.crystal-spin i::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.3) 0%, transparent 40%);
  pointer-events: none;
}
.crystal-spin i:nth-child(1) { transform: rotateY(0deg) translateZ(62px); }
.crystal-spin i:nth-child(2) { transform: rotateY(60deg) translateZ(62px); filter: brightness(1.3); }
.crystal-spin i:nth-child(3) { transform: rotateY(120deg) translateZ(62px); }
.crystal-spin i:nth-child(4) { transform: rotateY(180deg) translateZ(62px); filter: brightness(1.3); }
.crystal-spin i:nth-child(5) { transform: rotateY(240deg) translateZ(62px); }
.crystal-spin i:nth-child(6) { transform: rotateY(300deg) translateZ(62px); filter: brightness(1.3); }

@keyframes crystal-spin {
  from { transform: rotateX(-12deg) rotateY(0deg); }
  to { transform: rotateX(-12deg) rotateY(360deg); }
}

.crystal-shadow {
  position: absolute; left: 50%; bottom: 8%; width: 300px; height: 50px; margin-left: -150px;
  background: radial-gradient(ellipse at center, color-mix(in srgb, var(--acc) 65%, transparent), transparent 70%);
  filter: blur(8px); animation: crystal-glow 3.2s ease-in-out infinite alternate;
}
@keyframes crystal-glow {
  from { opacity: 0.5; transform: scaleX(0.85); }
  to { opacity: 1; transform: scaleX(1.15); }
}

.orbit { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; transform-style: preserve-3d; }
.orbit-ring {
  position: absolute; width: min(520px, 90%); aspect-ratio: 1;
  border: 1px dashed color-mix(in srgb, var(--acc) 38%, transparent);
  transform: rotateX(72deg); animation: ring-spin 28s linear infinite;
}
.orbit-ring::before, .orbit-ring::after {
  content: ''; position: absolute; width: 10px; height: 10px; background: var(--acc);
  box-shadow: 0 0 14px var(--acc);
}
.orbit-ring::before { top: -5px; left: 50%; }
.orbit-ring::after { bottom: -5px; right: 24%; }
@keyframes ring-spin { to { transform: rotateX(72deg) rotateZ(360deg); } }

.tag {
  position: absolute; font: 700 11px/1 var(--mono); letter-spacing: 0.2em; color: var(--text2);
  padding: 8px 11px; border: 1px solid var(--border2); background: rgba(11, 7, 9, 0.75);
  backdrop-filter: blur(6px); animation: tag-float 5s ease-in-out infinite alternate;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}
.tag::before {
  content: ''; display: inline-block; width: 5px; height: 5px; background: var(--acc);
  margin-right: 8px; vertical-align: 1px; box-shadow: 0 0 8px var(--acc);
}
.tag.t1 { top: 14%; left: 4%; }
.tag.t2 { top: 30%; right: 0; animation-delay: -1.5s; }
.tag.t3 { bottom: 26%; left: 0; animation-delay: -3s; }
.tag.t4 { bottom: 12%; right: 10%; animation-delay: -2s; }
@keyframes tag-float { from { transform: translateY(-7px); } to { transform: translateY(7px); } }

.scroll-hint {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); display: flex;
  flex-direction: column; align-items: center; gap: 10px; font: 700 11px/1 var(--mono);
  letter-spacing: 0.3em; color: var(--muted); transition: color 0.2s;
}
.scroll-hint:hover { color: var(--text); }
.px3 { display: flex; gap: 5px; }
.px3 i { width: 6px; height: 6px; background: var(--acc); animation: px3 1.2s steps(1) infinite; }
.px3 i:nth-child(2) { animation-delay: 0.2s; }
.px3 i:nth-child(3) { animation-delay: 0.4s; }
@keyframes px3 { 0%, 100% { opacity: 0.25; } 30% { opacity: 1; } }

/* ── Манифест ── */
.manifest .mf {
  font: 600 clamp(26px, 3.6vw, 50px)/1.22 var(--font); color: var(--text);
  letter-spacing: -0.015em; max-width: 24ch; margin-top: 26px; --range: cover 12% cover 58%;
}
.mf .w { opacity: clamp(0.13, calc((var(--p) * (var(--n) + 6) - var(--i)) / 6), 1); transition: opacity 0.1s linear; }
.mf .w.acc { color: var(--acc); text-shadow: 0 0 20px color-mix(in srgb, var(--acc) 50%, transparent); }

/* ── Сцена-обзор (Scrollytelling) ── */
.tour-head { padding-bottom: 6vh; }
.story {
  position: relative; display: grid; grid-template-columns: minmax(300px, 0.72fr) minmax(0, 1.5fr);
  gap: 0 clamp(24px, 3vw, 56px); max-width: 1760px; margin: 0 auto; padding: 0 var(--pad);
  view-timeline: --story block; animation-name: story-acc;
}
.steps { grid-column: 1; grid-row: 1; }
.step { position: relative; view-timeline: --st block; }
.step-in {
  position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column;
  justify-content: center; padding: var(--top-h) 0 40px; --range: cover 0% cover 100%;
}
.st-time {
  font: 700 clamp(44px, 5vw, 72px)/1 var(--mono); color: var(--acc); letter-spacing: -0.02em;
  text-shadow: 0 0 30px color-mix(in srgb, var(--acc) 45%, transparent);
}
.st-time small { font-size: 0.32em; letter-spacing: 0.2em; color: var(--muted); margin-left: 12px; vertical-align: 0.9em; text-shadow: none; }
.step h3 { font: 700 clamp(26px, 2.6vw, 38px)/1.12 var(--font); color: var(--text); margin-top: 18px; letter-spacing: -0.015em; }
.step p.txt { margin-top: 14px; color: var(--text2); font-size: 17px; max-width: 44ch; }
.step .eyebrow { margin-top: 20px; }
.step-fig { display: none; margin-top: 26px; border: 1px solid var(--border2); }

.stage {
  grid-column: 2; grid-row: 1; position: sticky; top: 0; height: 100vh; align-self: start;
  display: flex; flex-direction: column; justify-content: center; gap: 18px;
  padding: calc(var(--top-h) + 20px) 0 28px;
}
.device {
  position: relative; width: 100%; max-width: calc((100vh - var(--top-h) - 150px) * 16 / 9);
  margin: 0 auto; border: 1px solid var(--border2); background: #050304;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6), 0 40px 120px rgba(0, 0, 0, 0.65), 0 0 90px color-mix(in srgb, var(--acc) 22%, transparent);
  --range: entry 0% entry 100%; transform-origin: 50% 100%;
}
.device.pc::after { inset: -4px; --s: 8px; }
.screen { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #0b0709; }
.cam { position: absolute; inset: 0; transform-origin: 0 0; will-change: transform; --range: contain 0% contain 100%; }
.shot { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; }
.shot.sh-voice { opacity: 1; }
.screen::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.08) 0 1px, transparent 1px 3px);
  mix-blend-mode: multiply;
}

.hl {
  position: absolute; z-index: 2; pointer-events: none; border: 2px solid var(--acc);
  box-shadow: 0 0 0 9999px rgba(5, 3, 4, 0.38), 0 0 26px color-mix(in srgb, var(--acc) 70%, transparent), inset 0 0 26px color-mix(in srgb, var(--acc) 30%, transparent);
  opacity: 0; left: 52%; top: 37%; width: 31%; height: 31%;
}
.hl.pc::after { inset: -6px; --s: 8px; }
.hl-lbl { position: absolute; left: -2px; bottom: calc(100% + 8px); white-space: nowrap; }
.hl-lbl i {
  position: absolute; left: 0; bottom: 0; font: 700 12px/1 var(--mono); font-style: normal;
  letter-spacing: 0.18em; text-transform: uppercase; color: #fff; background: var(--acc);
  padding: 7px 9px; opacity: 0; box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}

.rail {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; list-style: none;
  width: 100%; max-width: calc((100vh - var(--top-h) - 150px) * 16 / 9); margin: 0 auto;
}
.rail li {
  font: 700 10.5px/1.2 var(--mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); padding: 9px 8px 8px; border: 1px solid var(--border);
  border-top-width: 3px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
  cursor: pointer; transition: all 0.2s;
}
.rail li:hover { color: var(--text); border-color: var(--acc); }
.rail li b { display: block; font-size: 15px; color: inherit; letter-spacing: 0.04em; margin-bottom: 3px; }

.acc-pick {
  position: absolute; z-index: 3; left: 16px; bottom: 16px; display: flex; align-items: center;
  gap: 12px; padding: 12px 14px 30px; background: rgba(11, 7, 9, 0.86); border: 1px solid var(--border2);
  backdrop-filter: blur(6px); opacity: 0; list-style: none;
}
.acc-pick .ap-t { font: 700 11px/1 var(--mono); letter-spacing: 0.2em; color: var(--muted); text-transform: uppercase; margin-right: 4px; }
.acc-pick i {
  position: relative; width: 30px; height: 30px; background: var(--c);
  outline: calc(var(--on) * 2px) solid #fff; outline-offset: 2px;
  transform: scale(calc(1 + var(--on) * 0.14)); box-shadow: 0 0 calc(var(--on) * 22px) var(--c);
}
.acc-pick i span {
  position: absolute; left: 50%; top: calc(100% + 10px); transform: translateX(-50%);
  font: 700 10px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase;
  color: #fff; opacity: var(--on); white-space: nowrap;
}

/* ── ИНТЕРАКТИВНЫЙ БЛОК: DeepFilterNet 3 Демонстратор Шумодава ── */
.dfn-demo-box {
  margin-top: 48px; border: 1px solid var(--border2); background: rgba(18, 11, 16, 0.65);
  backdrop-filter: blur(14px); padding: clamp(24px, 4vw, 40px);
}
.dfn-head {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px;
}
.dfn-controls {
  display: flex; gap: 12px; flex-wrap: wrap;
}
.dfn-toggle-btn {
  font: 700 12px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase;
  padding: 12px 18px; border: 1px solid var(--border2); background: rgba(255, 255, 255, 0.03);
  color: var(--muted); cursor: pointer; display: flex; align-items: center; gap: 8px;
  transition: all 0.2s;
}
.dfn-toggle-btn.active {
  border-color: var(--acc); background: color-mix(in srgb, var(--acc) 18%, transparent);
  color: #fff; box-shadow: 0 0 20px color-mix(in srgb, var(--acc) 30%, transparent);
}
.dfn-toggle-btn.active .dfn-dot {
  background: var(--acc); box-shadow: 0 0 10px var(--acc);
}
.dfn-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }

.dfn-stage {
  margin-top: 28px; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
  gap: 28px; align-items: center;
}
.dfn-canvas-wrap {
  position: relative; height: 180px; background: rgba(8, 5, 7, 0.85);
  border: 1px solid var(--border); overflow: hidden;
}
.dfn-canvas {
  width: 100%; height: 100%; display: block;
}
.dfn-overlay-label {
  position: absolute; top: 12px; left: 14px; font: 700 11px/1 var(--mono);
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted);
  display: flex; align-items: center; gap: 8px;
}
.dfn-overlay-label b { color: var(--acc); }

.dfn-metrics {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
}
.dfn-metric-card {
  padding: 16px; border: 1px solid var(--border); background: rgba(255, 255, 255, 0.02);
}
.dfn-metric-card .lbl { font: 700 11px/1 var(--mono); letter-spacing: 0.14em; color: var(--muted); text-transform: uppercase; }
.dfn-metric-card .val { font: 800 24px/1.2 var(--mono); color: var(--text); margin-top: 6px; }
.dfn-metric-card .val.highlight { color: var(--acc); }

/* ── Возможности (Bento-стиль сетка карточек) ── */
.grid-f {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 56px;
}
.card {
  position: relative; padding: 28px 24px 28px; border: 1px solid var(--border);
  background: var(--bg-card); backdrop-filter: blur(10px);
  transition: border-color 0.25s, transform 0.25s var(--ease), box-shadow 0.25s;
  --range: entry 0% cover 30%; overflow: hidden;
}
/* Радиальный прожектор за курсором мыши на карточке */
.card::before {
  content: ''; position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background: radial-gradient(300px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), color-mix(in srgb, var(--acc) 16%, transparent), transparent 80%);
  transition: opacity 0.3s; z-index: 1;
}
.card:hover::before { opacity: 1; }

.card::after { opacity: 0; transition: opacity 0.25s; }
.card:hover {
  border-color: color-mix(in srgb, var(--acc) 60%, transparent);
  transform: translateY(-5px);
  box-shadow: 0 8px 0 color-mix(in srgb, var(--acc) 35%, transparent), 0 24px 48px rgba(0, 0, 0, 0.5);
}
.card:hover::after { opacity: 1; }

.card .ic {
  position: relative; z-index: 2; width: 48px; height: 48px; display: grid; place-items: center;
  border: 1px solid color-mix(in srgb, var(--acc) 50%, transparent);
  background: color-mix(in srgb, var(--acc) 12%, transparent); color: var(--acc);
  transition: transform 0.2s var(--ease), background 0.2s, box-shadow 0.2s;
}
.card:hover .ic {
  transform: scale(1.08); background: color-mix(in srgb, var(--acc) 22%, transparent);
  box-shadow: 0 0 20px color-mix(in srgb, var(--acc) 40%, transparent);
}
.card .ic svg { width: 24px; height: 24px; }
.card h4 { position: relative; z-index: 2; font: 700 19px/1.25 var(--font); color: var(--text); margin-top: 22px; }
.card p { position: relative; z-index: 2; font-size: 15px; color: var(--muted); margin-top: 10px; line-height: 1.55; }
.card .k { position: absolute; top: 24px; right: 20px; font: 700 10px/1 var(--mono); letter-spacing: 0.16em; color: var(--muted); z-index: 2; }

/* ── Бегущая строка ── */
.marquee {
  padding: 7vh 0; overflow: hidden; border-block: 1px solid var(--border);
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--acc) 7%, transparent), transparent);
}
.mq-row {
  display: flex; width: max-content; font: 800 clamp(48px, 8vw, 120px)/1.08 var(--mono);
  letter-spacing: -0.02em; text-transform: uppercase; white-space: nowrap; --range: cover 0% cover 100%;
}
.mq-row span { padding-right: 0.5em; }
.mq-a { color: transparent; -webkit-text-stroke: 1.5px color-mix(in srgb, var(--acc) 85%, #fff); }
.mq-b { color: var(--text); opacity: 0.9; }
.mq-b i, .mq-a i { font-style: normal; color: var(--acc); -webkit-text-stroke: 0; }

/* ── Стиль: интерактивная шторка тёмная/светлая + пресеты ── */
.wipe {
  position: relative; margin-top: 56px; border: 1px solid var(--border2);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.6); --range: cover 18% cover 62%;
  cursor: ew-resize; user-select: none;
}
.wipe.pc::after { inset: -4px; --s: 8px; }
.wipe img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; pointer-events: none; }
.wipe .w-light { position: absolute; inset: 0; clip-path: inset(0 0 0 var(--x, 50%)); }
.wipe .w-line {
  position: absolute; top: -14px; bottom: -14px; left: var(--x, 50%); width: 3px;
  margin-left: -1.5px; background: var(--acc); box-shadow: 0 0 20px var(--acc);
}
.wipe .w-line::before {
  content: '◄ ►'; display: grid; place-items: center; font: 700 9px/1 var(--mono); color: #fff;
  position: absolute; top: 50%; left: 50%; width: 28px; height: 28px;
  transform: translate(-50%, -50%); background: var(--acc); box-shadow: 0 0 22px var(--acc);
  border: 2px solid #fff;
}
.wipe .w-tag {
  position: absolute; top: 18px; font: 700 11px/1 var(--mono); letter-spacing: 0.2em;
  padding: 8px 12px; background: rgba(11, 7, 9, 0.85); color: var(--text);
  border: 1px solid var(--border2); backdrop-filter: blur(8px);
}
.wipe .w-tag.d { left: 18px; }
.wipe .w-tag.l { right: 18px; background: rgba(255, 255, 255, 0.92); color: #1a1116; }

.styles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 24px; perspective: 1200px; }
.sty {
  border: 1px solid var(--border); background: var(--bg2); --range: entry 10% cover 40%;
  transform-origin: 50% 100%; transition: transform 0.2s var(--ease), border-color 0.2s;
}
.sty:hover { border-color: var(--border2); transform: translateY(-3px); }
.sty .sw { height: 96px; background: var(--g); display: grid; place-items: center; font-size: 34px; }
.sty div.t { padding: 18px; }
.sty h4 { font: 700 17px/1.2 var(--font); color: var(--text); display: flex; align-items: center; gap: 10px; }
.sty h4 small {
  font: 700 10px/1 var(--mono); letter-spacing: 0.16em; color: var(--acc);
  border: 1px solid color-mix(in srgb, var(--acc) 50%, transparent); padding: 4px 6px;
}
.sty p { font-size: 14px; color: var(--muted); margin-top: 6px; }

/* Интерактивная палитра переключения акцента сайта */
.swatch-line { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 44px; align-items: center; }
.swatch-line .sl { font: 700 11px/1 var(--mono); letter-spacing: 0.22em; color: var(--muted); text-transform: uppercase; margin-right: 8px; }
.swatch-line i {
  position: relative; width: 36px; height: 36px; background: var(--c); cursor: pointer;
  box-shadow: 0 4px 0 color-mix(in srgb, var(--c) 50%, #000); --range: entry 20% cover 45%;
  transition: transform 0.2s var(--ease), outline-offset 0.15s, box-shadow 0.2s;
  outline: 2px solid transparent; outline-offset: 3px;
}
.swatch-line i:hover { transform: translateY(-3px) scale(1.1); box-shadow: 0 6px 14px color-mix(in srgb, var(--c) 70%, transparent); }
.swatch-line i.active {
  outline-color: #fff; transform: translateY(-2px) scale(1.12);
  box-shadow: 0 0 20px var(--c), 0 4px 0 color-mix(in srgb, var(--c) 60%, #000);
}
.swatch-line .color-input-wrap {
  position: relative; overflow: hidden; width: 36px; height: 36px; cursor: pointer;
}
.swatch-line .color-input-wrap input[type="color"] {
  position: absolute; inset: -10px; width: 60px; height: 60px; opacity: 0; cursor: pointer;
}

/* ── Старт + Загрузка ── */
.how { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 56px; counter-reset: how; list-style: none; }
.how li {
  position: relative; padding: 32px 26px; border: 1px solid var(--border); background: var(--bg-card);
  backdrop-filter: blur(10px); --range: entry 0% cover 35%; transition: border-color 0.2s, transform 0.2s;
}
.how li:hover { border-color: var(--border2); transform: translateY(-3px); }
.how li::before {
  counter-increment: how; content: '0' counter(how); font: 800 46px/1 var(--mono);
  color: color-mix(in srgb, var(--acc) 85%, #fff); display: block; letter-spacing: -0.02em;
}
.how li h4 { font: 700 19px/1.25 var(--font); color: var(--text); margin-top: 18px; }
.how li p { font-size: 15px; color: var(--muted); margin-top: 10px; line-height: 1.55; }
.how li p a { color: var(--text); border-bottom: 1px solid var(--acc); }

/* Главный блок загрузки */
.dl {
  position: relative; margin-top: 56px; display: grid; grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px; align-items: center; padding: clamp(32px, 5vw, 64px);
  border: 1px solid color-mix(in srgb, var(--acc) 50%, transparent);
  background:
    radial-gradient(650px 320px at 100% 0%, color-mix(in srgb, var(--acc) 24%, transparent), transparent 70%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  box-shadow: 0 0 90px color-mix(in srgb, var(--acc) 18%, transparent), 0 30px 60px rgba(0, 0, 0, 0.5);
  overflow: hidden; backdrop-filter: blur(14px);
}
.dl.pc::after { --s: 10px; }
.dl h3 { font: 800 clamp(30px, 3.6vw, 48px)/1.05 var(--font); color: var(--text); letter-spacing: -0.02em; margin-top: 16px; }
.dl .facts {
  display: grid; grid-template-columns: repeat(3, auto); justify-content: start;
  gap: 8px 36px; margin-top: 24px; font: 600 13px/1.4 var(--mono); color: var(--muted);
}
.dl .facts b { display: block; font-size: 19px; color: var(--text); letter-spacing: 0.02em; margin-top: 3px; }
.dl .notes {
  margin-top: 24px; padding: 16px 20px; border-left: 3px solid var(--acc);
  background: rgba(255, 255, 255, 0.03); color: var(--text2); font-size: 15px; max-width: 70ch;
  line-height: 1.6;
}
.dl .notes .mono { display: block; font-size: 11px; letter-spacing: 0.2em; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; }
.dl .cta { margin-top: 32px; }
.dl .req {
  margin-top: 22px; display: flex; flex-wrap: wrap; gap: 8px 22px; font: 600 12.5px/1.4 var(--mono);
  color: var(--muted); list-style: none;
}
.dl .req li::before { content: '■'; color: var(--acc); margin-right: 8px; font-size: 9px; vertical-align: 2px; }

.copy-link-btn {
  display: inline-flex; align-items: center; gap: 8px; font: 700 11.5px/1 var(--mono);
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); background: transparent;
  border: 1px dashed var(--border2); padding: 10px 16px; cursor: pointer; margin-top: 12px;
  transition: all 0.2s;
}
.copy-link-btn:hover { color: var(--text); border-color: var(--acc); background: rgba(255, 255, 255, 0.03); }

.dl-art { position: relative; height: 300px; display: grid; place-items: center; perspective: 800px; }
.dl-art .crystal-spin { width: 96px; height: 210px; animation-duration: 9s; }
.dl-art .crystal-spin i { left: 4px; width: 88px; height: 210px; }
.dl-art .crystal-spin i:nth-child(1) { transform: rotateY(0deg) translateZ(40px); }
.dl-art .crystal-spin i:nth-child(2) { transform: rotateY(60deg) translateZ(40px); }
.dl-art .crystal-spin i:nth-child(3) { transform: rotateY(120deg) translateZ(40px); }
.dl-art .crystal-spin i:nth-child(4) { transform: rotateY(180deg) translateZ(40px); }
.dl-art .crystal-spin i:nth-child(5) { transform: rotateY(240deg) translateZ(40px); }
.dl-art .crystal-spin i:nth-child(6) { transform: rotateY(300deg) translateZ(40px); }
.dl-art .crystal-shadow { width: 200px; margin-left: -100px; bottom: 6%; }

.faq { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 56px; }
.faq details {
  border: 1px solid var(--border); background: var(--bg-card); padding: 0 24px;
  transition: border-color 0.2s, background 0.2s;
}
.faq details[open] { border-color: color-mix(in srgb, var(--acc) 50%, transparent); background: rgba(255, 255, 255, 0.02); }
.faq summary {
  list-style: none; cursor: pointer; padding: 22px 0; font: 700 17px/1.3 var(--font);
  color: var(--text); display: flex; gap: 14px; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: '+'; font: 700 18px/1 var(--mono); color: var(--acc); width: 14px; flex: none; }
.faq details[open] summary::before { content: '−'; }
.faq details p { padding: 0 0 22px 28px; color: var(--muted); font-size: 15px; line-height: 1.6; }
.faq details p a { color: var(--text); border-bottom: 1px solid var(--acc); }

/* ── Плавающий пилл загрузки (при скролле) ── */
.floating-dl-bar {
  position: fixed; right: 28px; bottom: 28px; z-index: 45; display: flex; align-items: center;
  gap: 12px; padding: 10px 18px; background: rgba(14, 9, 13, 0.88); border: 1px solid var(--border2);
  backdrop-filter: blur(16px); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 30px color-mix(in srgb, var(--acc) 25%, transparent);
  transform: translateY(120%); opacity: 0; pointer-events: none;
  transition: transform 0.35s var(--ease-spring), opacity 0.3s;
}
.floating-dl-bar.visible {
  transform: translateY(0); opacity: 1; pointer-events: auto;
}
.floating-dl-bar .f-info { font: 700 11px/1.3 var(--mono); color: var(--text); }
.floating-dl-bar .f-info span { display: block; font-size: 10px; color: var(--muted); font-weight: 400; }

/* ── Тост уведомление ── */
.toast-msg {
  position: fixed; top: 80px; left: 50%; transform: translateX(-50%) translateY(-20px);
  z-index: 99; padding: 12px 24px; background: rgba(14, 9, 13, 0.95);
  border: 1px solid var(--acc); color: #fff; font: 700 12px/1 var(--mono);
  letter-spacing: 0.14em; text-transform: uppercase; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.8), 0 0 20px var(--acc-glow);
  opacity: 0; pointer-events: none; transition: transform 0.25s var(--ease-spring), opacity 0.2s;
}
.toast-msg.show {
  transform: translateX(-50%) translateY(0); opacity: 1;
}

/* ── Футер ── */
.foot { border-top: 1px solid var(--border); padding: 40px 0 48px; }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 20px 32px; align-items: center; justify-content: space-between; }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 24px; font: 700 12px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; }
.foot nav a { color: var(--muted); transition: color 0.18s; }
.foot nav a:hover { color: var(--text); }
.foot small { font: 12px/1.5 var(--mono); color: var(--muted); letter-spacing: 0.06em; }

/* ═══ Scroll-driven ключевые кадры ═══ */
@keyframes top-progress { to { transform: scaleX(1); } }
@keyframes hero-copy { to { transform: translateY(-14vh); opacity: 0; filter: blur(4px); } }
@keyframes hero-art { to { transform: translateY(-6vh) scale(0.72) rotateZ(-8deg); opacity: 0.1; } }
@keyframes rise { from { opacity: 0; transform: translateY(70px); } to { opacity: 1; transform: none; } }
@keyframes rise-flip { from { opacity: 0; transform: rotateX(-70deg) translateY(30px); } to { opacity: 1; transform: none; } }
@keyframes pop { from { opacity: 0; transform: scale(0.4) rotate(-45deg); } to { opacity: 1; transform: none; } }
@keyframes step-in { 0% { opacity: 0; transform: translateY(60px); } 28%, 72% { opacity: 1; transform: none; } 100% { opacity: 0; transform: translateY(-60px); } }
@keyframes dev-in { from { transform: perspective(1600px) rotateX(28deg) scale(0.86) translateY(4vh); opacity: 0.35; } to { transform: none; opacity: 1; } }
@keyframes mq-a { from { transform: translateX(0); } to { transform: translateX(-38%); } }
@keyframes mq-b { from { transform: translateX(-38%); } to { transform: translateX(0); } }
@keyframes wipe-x { from { --x: 100%; } to { --x: 0%; } }
@keyframes pv { from { --p: 0; } to { --p: 1; } }

.top-progress { animation-name: top-progress; }
.hero-copy { animation-name: hero-copy; --range: exit 0% exit 100%; }
.hero-art { animation-name: hero-art; --range: exit 0% exit 100%; }
.rise { animation-name: rise; --range: entry 0% cover 32%; }
.card { animation-name: rise; }
.card:nth-child(4n + 2) { --range: entry 8% cover 36%; }
.card:nth-child(4n + 3) { --range: entry 16% cover 40%; }
.card:nth-child(4n + 4) { --range: entry 24% cover 44%; }
.how li { animation-name: rise; }
.how li:nth-child(2) { --range: entry 10% cover 40%; }
.how li:nth-child(3) { --range: entry 20% cover 46%; }
.sty { animation-name: rise-flip; }
.sty:nth-child(2) { --range: entry 18% cover 46%; }
.sty:nth-child(3) { --range: entry 26% cover 52%; }
.sty:nth-child(4) { --range: entry 34% cover 58%; }
.swatch-line i { animation-name: pop; }
.step-in { animation-name: step-in; }
.device { animation-name: dev-in; }
.mq-a { animation-name: mq-a; }
.mq-b { animation-name: mq-b; }
.wipe { animation-name: wipe-x; }
.cam { animation-name: cam; }
.hl { animation-name: hl-pos, hl-op; }
.acc-pick { animation-name: acc-panel; }
.mf { animation-name: pv; }

/* Нативные scroll-driven стили */
html.sda .story { animation-duration: 1ms; animation-duration: auto; animation-timing-function: linear; animation-fill-mode: both; animation-timeline: --story; animation-range: contain 0% contain 100%; }
html.sda .sd { animation-duration: 1ms; animation-duration: auto; animation-timing-function: linear; animation-fill-mode: both; animation-range: var(--range, cover 0% cover 100%); }
html.sda .tl-view { animation-timeline: view(); }
html.sda .tl-root { animation-timeline: scroll(root block); animation-range: normal; }
html.sda .tl-hero { animation-timeline: --hero; }
html.sda .tl-story { animation-timeline: --story; animation-range: var(--range, contain 0% contain 100%); }
html.sda .tl-step { animation-timeline: --st; }
html.sda .hl, html.sda .hl-lbl i, html.sda .rail li, html.sda .acc-pick, html.sda .acc-pick i, html.sda .acc-chips li, html.sda .shot { animation-duration: 1ms; animation-duration: auto; animation-timing-function: linear; animation-fill-mode: both; animation-timeline: --story; animation-range: contain 0% contain 100%; }

/* JS фолбэк для scroll-driven */
html.nosda .sd, html.nosda .hl, html.nosda .hl-lbl i, html.nosda .rail li, html.nosda .acc-pick, html.nosda .acc-pick i, html.nosda .acc-chips li, html.nosda .shot, html.nosda .story {
  animation-duration: 1s !important; animation-timing-function: linear !important; animation-fill-mode: both !important;
  animation-play-state: paused !important; animation-delay: calc(var(--sp, 0) * -1s) !important;
}
html.nosda .hl-lbl i, html.nosda .rail li, html.nosda .acc-pick, html.nosda .acc-pick i, html.nosda .acc-chips li, html.nosda .shot, html.nosda .hl { animation-delay: calc(var(--story-p, 0) * -1s) !important; }
html.nosda .story { animation-delay: calc(var(--story-p, 0) * -1s) !important; }
html.nosda .mf { animation: none !important; --p: var(--sp, 0); }
html:not(.sda):not(.nosda) .sd { animation: none; }

/* ═══ Адаптивность ═══ */
@media (max-width: 1100px) {
  .h1 { font-size: clamp(44px, 8vw, 86px); }
  .grid-f { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .styles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-in { grid-template-columns: 1fr; }
  .hero-art { height: 40vh; order: -1; margin-top: -2vh; }
  .crystal-spin { scale: 0.7; }
  .crystal-shadow { scale: 0.75; }
  .dl { grid-template-columns: 1fr; }
  .dl-art { display: none; }
  .dfn-stage { grid-template-columns: 1fr; }
}

@media (max-width: 960px), (prefers-reduced-motion: reduce) {
  .story { display: block; animation: none !important; }
  .stage { display: none; }
  .step { height: auto !important; }
  .step-in { position: relative; height: auto; padding: 8vh 0; animation: none !important; opacity: 1 !important; transform: none !important; }
  .step-fig { display: block; }
  .acc-chips li { animation: none !important; }
  .acc-chips li:first-child { --on: 1; }
}

@media (max-width: 760px) {
  .nav { display: none; }
  .top .btn-sm { margin-left: auto; }
  .grid-f, .styles, .how, .faq { grid-template-columns: 1fr; }
  .dl .facts { grid-template-columns: repeat(2, auto); }
  .tag.t2, .tag.t4 { display: none; }
  .h1 { font-size: clamp(40px, 11vw, 60px); }
  .btn { padding: 0 20px; }
  .cta .btn { flex: 1 1 100%; }
  .hero-art { height: 30vh; }
  .crystal-spin { scale: 0.55; }
  .crystal-shadow { scale: 0.6; }
  .floating-dl-bar { right: 16px; bottom: 16px; left: 16px; justify-content: space-between; }
  .dfn-metrics { grid-template-columns: 1fr; }
}

@media (max-width: 760px) and (pointer: coarse) {
  .top .btn-sm[data-dl] { display: inline-flex; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .sd, .hl, .shot, .rail li, .acc-pick, .acc-pick i, .acc-chips li, .story, .mf { animation: none !important; }
  .mf { --p: 1; }
  .crystal-spin, .floor-plane, .orbit-ring, .tag, .px3 i, .crystal-shadow, .hud-wave .wb, .live-pulse { animation: none !important; }
  .wipe { --x: 50%; }
}

/* ═══ Анимации для Scrollytelling камеры и кадров ═══ */
@keyframes cam {0.000% { transform: translate(0.000%, 0.000%) scale(1.0000); } 4.000% { transform: translate(0.000%, 0.000%) scale(1.0000); } 7.143% { transform: translate(0%, 0%) scale(1); } 10.286% { transform: translate(-33.050%, -95.933%) scale(2.2000); } 18.286% { transform: translate(-33.050%, -95.933%) scale(2.2000); } 21.429% { transform: translate(0%, 0%) scale(1); } 24.571% { transform: translate(-24.055%, -7.008%) scale(1.4173); } 32.571% { transform: translate(-24.055%, -7.008%) scale(1.4173); } 35.714% { transform: translate(0%, 0%) scale(1); } 38.857% { transform: translate(-26.992%, -68.750%) scale(1.6875); } 46.857% { transform: translate(-26.992%, -68.750%) scale(1.6875); } 50.000% { transform: translate(0%, 0%) scale(1); } 53.143% { transform: translate(0.000%, -68.532%) scale(1.7234); } 61.143% { transform: translate(0.000%, -68.532%) scale(1.7234); } 64.286% { transform: translate(0%, 0%) scale(1); } 67.429% { transform: translate(0.000%, 0.000%) scale(1.0000); } 89.714% { transform: translate(0.000%, 0.000%) scale(1.0000); } 92.857% { transform: translate(0%, 0%) scale(1); } 96.000% { transform: translate(-60.000%, -59.756%) scale(2.2000); } 100.000% { transform: translate(-60.000%, -59.756%) scale(2.2000); }}
@keyframes sh-voice {0.000% { opacity: 1; } 6.043% { opacity: 1; } 8.243% { opacity: 0; } 63.186% { opacity: 0; } 65.386% { opacity: 1; } 70.043% { opacity: 1; } 72.243% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-voice { animation-name: sh-voice; }
@keyframes sh-sound {0.000% { opacity: 0; } 6.043% { opacity: 0; } 8.243% { opacity: 1; } 20.329% { opacity: 1; } 22.529% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-sound { animation-name: sh-sound; }
@keyframes sh-stream {0.000% { opacity: 0; } 20.329% { opacity: 0; } 22.529% { opacity: 1; } 34.614% { opacity: 1; } 36.814% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-stream { animation-name: sh-stream; }
@keyframes sh-chat {0.000% { opacity: 0; } 34.614% { opacity: 0; } 36.814% { opacity: 1; } 48.900% { opacity: 1; } 51.100% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-chat { animation-name: sh-chat; }
@keyframes sh-net {0.000% { opacity: 0; } 48.900% { opacity: 0; } 51.100% { opacity: 1; } 63.186% { opacity: 1; } 65.386% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-net { animation-name: sh-net; }
@keyframes sh-update {0.000% { opacity: 0; } 91.757% { opacity: 0; } 93.957% { opacity: 1; } 100.000% { opacity: 1; }}
.shot.sh-update { animation-name: sh-update; }
@keyframes sh-voice-sapphire {0.000% { opacity: 0; } 70.043% { opacity: 0; } 72.243% { opacity: 1; } 73.757% { opacity: 1; } 75.957% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-voice-sapphire { animation-name: sh-voice-sapphire; }
@keyframes sh-voice-pine {0.000% { opacity: 0; } 73.757% { opacity: 0; } 75.957% { opacity: 1; } 77.471% { opacity: 1; } 79.671% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-voice-pine { animation-name: sh-voice-pine; }
@keyframes sh-voice-amethyst {0.000% { opacity: 0; } 77.471% { opacity: 0; } 79.671% { opacity: 1; } 81.186% { opacity: 1; } 83.386% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-voice-amethyst { animation-name: sh-voice-amethyst; }
@keyframes sh-voice-fire {0.000% { opacity: 0; } 81.186% { opacity: 0; } 83.386% { opacity: 1; } 84.900% { opacity: 1; } 87.100% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-voice-fire { animation-name: sh-voice-fire; }
@keyframes sh-voice-amber {0.000% { opacity: 0; } 84.900% { opacity: 0; } 87.100% { opacity: 1; } 91.757% { opacity: 1; } 93.957% { opacity: 0; } 100.000% { opacity: 0; }}
.shot.sh-voice-amber { animation-name: sh-voice-amber; }

@keyframes hl-pos {0.000% { left: 52.562%; top: 37.000%; width: 31.438%; height: 31.444%; } 4.000% { left: 52.562%; top: 37.000%; width: 31.438%; height: 31.444%; } 10.286% { left: 7.375%; top: 57.089%; width: 85.250%; height: 21.511%; } 18.286% { left: 7.375%; top: 57.089%; width: 85.250%; height: 21.511%; } 24.571% { left: 5.354%; top: 8.740%; width: 41.811%; height: 5.354%; } 32.571% { left: 5.354%; top: 8.740%; width: 41.811%; height: 5.354%; } 38.857% { left: 13.508%; top: 38.875%; width: 44.297%; height: 42.375%; } 46.857% { left: 13.508%; top: 38.875%; width: 44.297%; height: 42.375%; } 53.143% { left: 7.755%; top: 6.149%; width: 35.545%; height: 68.362%; } 61.143% { left: 7.755%; top: 6.149%; width: 35.545%; height: 68.362%; } 96.000% { left: 18.375%; top: 21.156%; width: 63.250%; height: 58.178%; } 100.000% { left: 18.375%; top: 21.156%; width: 63.250%; height: 58.178%; }}
@keyframes hl-op {0.000% { opacity: 0; } 0.400% { opacity: 1; } 3.600% { opacity: 1; } 5.400% { opacity: 0; } 8.886% { opacity: 0; } 10.686% { opacity: 1; } 17.886% { opacity: 1; } 19.686% { opacity: 0; } 23.171% { opacity: 0; } 24.971% { opacity: 1; } 32.171% { opacity: 1; } 33.971% { opacity: 0; } 37.457% { opacity: 0; } 39.257% { opacity: 1; } 46.457% { opacity: 1; } 48.257% { opacity: 0; } 51.743% { opacity: 0; } 53.543% { opacity: 1; } 60.743% { opacity: 1; } 62.543% { opacity: 0; } 94.600% { opacity: 0; } 96.400% { opacity: 1; } 99.600% { opacity: 1; } 100.000% { opacity: 0; }}
@keyframes lbl-voice {0.000% { opacity: 0; transform: translateY(6px); } 0.400% { opacity: 1; transform: translateY(0px); } 3.600% { opacity: 1; transform: translateY(0px); } 5.400% { opacity: 0; transform: translateY(6px); } 100.000% { opacity: 0; transform: translateY(6px); }}
.hl-lbl .l-voice { animation-name: lbl-voice; }
@keyframes lbl-dfn {0.000% { opacity: 0; transform: translateY(6px); } 8.886% { opacity: 0; transform: translateY(6px); } 10.686% { opacity: 1; transform: translateY(0px); } 17.886% { opacity: 1; transform: translateY(0px); } 19.686% { opacity: 0; transform: translateY(6px); } 100.000% { opacity: 0; transform: translateY(6px); }}
.hl-lbl .l-dfn { animation-name: lbl-dfn; }
@keyframes lbl-stream {0.000% { opacity: 0; transform: translateY(6px); } 23.171% { opacity: 0; transform: translateY(6px); } 24.971% { opacity: 1; transform: translateY(0px); } 32.171% { opacity: 1; transform: translateY(0px); } 33.971% { opacity: 0; transform: translateY(6px); } 100.000% { opacity: 0; transform: translateY(6px); }}
.hl-lbl .l-stream { animation-name: lbl-stream; }
@keyframes lbl-chat {0.000% { opacity: 0; transform: translateY(6px); } 37.457% { opacity: 0; transform: translateY(6px); } 39.257% { opacity: 1; transform: translateY(0px); } 46.457% { opacity: 1; transform: translateY(0px); } 48.257% { opacity: 0; transform: translateY(6px); } 100.000% { opacity: 0; transform: translateY(6px); }}
.hl-lbl .l-chat { animation-name: lbl-chat; }
@keyframes lbl-net {0.000% { opacity: 0; transform: translateY(6px); } 51.743% { opacity: 0; transform: translateY(6px); } 53.543% { opacity: 1; transform: translateY(0px); } 60.743% { opacity: 1; transform: translateY(0px); } 62.543% { opacity: 0; transform: translateY(6px); } 100.000% { opacity: 0; transform: translateY(6px); }}
.hl-lbl .l-net { animation-name: lbl-net; }
@keyframes lbl-update {0.000% { opacity: 0; transform: translateY(6px); } 94.600% { opacity: 0; transform: translateY(6px); } 96.400% { opacity: 1; transform: translateY(0px); } 99.600% { opacity: 1; transform: translateY(0px); } 100.000% { opacity: 0; transform: translateY(6px); }}
.hl-lbl .l-update { animation-name: lbl-update; }

@keyframes rail-0 {0.000% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 7.143% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 7.193% { color: var(--muted); border-color: var(--border); background: transparent; } 100.000% { color: var(--muted); border-color: var(--border); background: transparent; }}
.rail li:nth-child(1) { animation-name: rail-0; }
@keyframes rail-1 {0.000% { color: var(--muted); border-color: var(--border); background: transparent; } 7.093% { color: var(--muted); border-color: var(--border); background: transparent; } 7.143% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 21.429% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 21.479% { color: var(--muted); border-color: var(--border); background: transparent; } 100.000% { color: var(--muted); border-color: var(--border); background: transparent; }}
.rail li:nth-child(2) { animation-name: rail-1; }
@keyframes rail-2 {0.000% { color: var(--muted); border-color: var(--border); background: transparent; } 21.379% { color: var(--muted); border-color: var(--border); background: transparent; } 21.429% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 35.714% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 35.764% { color: var(--muted); border-color: var(--border); background: transparent; } 100.000% { color: var(--muted); border-color: var(--border); background: transparent; }}
.rail li:nth-child(3) { animation-name: rail-2; }
@keyframes rail-3 {0.000% { color: var(--muted); border-color: var(--border); background: transparent; } 35.664% { color: var(--muted); border-color: var(--border); background: transparent; } 35.714% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 50.000% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 50.050% { color: var(--muted); border-color: var(--border); background: transparent; } 100.000% { color: var(--muted); border-color: var(--border); background: transparent; }}
.rail li:nth-child(4) { animation-name: rail-3; }
@keyframes rail-4 {0.000% { color: var(--muted); border-color: var(--border); background: transparent; } 49.950% { color: var(--muted); border-color: var(--border); background: transparent; } 50.000% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 64.286% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 64.336% { color: var(--muted); border-color: var(--border); background: transparent; } 100.000% { color: var(--muted); border-color: var(--border); background: transparent; }}
.rail li:nth-child(5) { animation-name: rail-4; }
@keyframes rail-5 {0.000% { color: var(--muted); border-color: var(--border); background: transparent; } 64.236% { color: var(--muted); border-color: var(--border); background: transparent; } 64.286% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 92.857% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 92.907% { color: var(--muted); border-color: var(--border); background: transparent; } 100.000% { color: var(--muted); border-color: var(--border); background: transparent; }}
.rail li:nth-child(6) { animation-name: rail-5; }
@keyframes rail-6 {0.000% { color: var(--muted); border-color: var(--border); background: transparent; } 92.807% { color: var(--muted); border-color: var(--border); background: transparent; } 92.857% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); } 100.000% { color: var(--text); border-color: var(--acc); background: color-mix(in srgb, var(--acc) 16%, transparent); }}
.rail li:nth-child(7) { animation-name: rail-6; }

@keyframes story-acc {0.000% { --acc: #e62842; } 66.829% { --acc: #e62842; } 68.029% { --acc: #e62842; } 70.543% { --acc: #e62842; } 71.743% { --acc: #3b82f6; } 74.257% { --acc: #3b82f6; } 75.457% { --acc: #22c55e; } 77.971% { --acc: #22c55e; } 79.171% { --acc: #a855f7; } 81.686% { --acc: #a855f7; } 82.886% { --acc: #f97316; } 85.400% { --acc: #f97316; } 86.600% { --acc: #eab308; } 91.857% { --acc: #eab308; } 93.857% { --acc: #e62842; } 100.000% { --acc: #e62842; }}
@keyframes sw-0 {0.000% { --on: 0; } 64.236% { --on: 0; } 64.286% { --on: 1; } 71.143% { --on: 1; } 71.193% { --on: 0; } 100.000% { --on: 0; }}
.acc-pick i:nth-of-type(1) { animation-name: sw-0; }
.acc-chips li:nth-child(1) { animation-name: sw-0; }
@keyframes sw-1 {0.000% { --on: 0; } 71.093% { --on: 0; } 71.143% { --on: 1; } 74.857% { --on: 1; } 74.907% { --on: 0; } 100.000% { --on: 0; }}
.acc-pick i:nth-of-type(2) { animation-name: sw-1; }
.acc-chips li:nth-child(2) { animation-name: sw-1; }
@keyframes sw-2 {0.000% { --on: 0; } 74.807% { --on: 0; } 74.857% { --on: 1; } 78.571% { --on: 1; } 78.621% { --on: 0; } 100.000% { --on: 0; }}
.acc-pick i:nth-of-type(3) { animation-name: sw-2; }
.acc-chips li:nth-child(3) { animation-name: sw-2; }
@keyframes sw-3 {0.000% { --on: 0; } 78.521% { --on: 0; } 78.571% { --on: 1; } 82.286% { --on: 1; } 82.336% { --on: 0; } 100.000% { --on: 0; }}
.acc-pick i:nth-of-type(4) { animation-name: sw-3; }
.acc-chips li:nth-child(4) { animation-name: sw-3; }
@keyframes sw-4 {0.000% { --on: 0; } 82.236% { --on: 0; } 82.286% { --on: 1; } 86.000% { --on: 1; } 86.050% { --on: 0; } 100.000% { --on: 0; }}
.acc-pick i:nth-of-type(5) { animation-name: sw-4; }
.acc-chips li:nth-child(5) { animation-name: sw-4; }
@keyframes sw-5 {0.000% { --on: 0; } 85.950% { --on: 0; } 86.000% { --on: 1; } 92.857% { --on: 1; } 92.907% { --on: 0; } 100.000% { --on: 0; }}
.acc-pick i:nth-of-type(6) { animation-name: sw-5; }
.acc-chips li:nth-child(6) { animation-name: sw-5; }
@keyframes acc-panel {0.000% { opacity: 0; transform: translateY(14px); } 63.286% { opacity: 0; transform: translateY(14px); } 65.486% { opacity: 1; transform: translateY(0px); } 91.657% { opacity: 1; transform: translateY(0px); } 93.857% { opacity: 0; transform: translateY(14px); } 100.000% { opacity: 0; transform: translateY(14px); }}

.step:nth-child(1) { height: 100vh; }
.step:nth-child(2) { height: 100vh; }
.step:nth-child(3) { height: 100vh; }
.step:nth-child(4) { height: 100vh; }
.step:nth-child(5) { height: 100vh; }
.step:nth-child(6) { height: 200vh; }
.step:nth-child(7) { height: 100vh; }