/* ============================================================
   OmniSync — лендинг. Токены тем + база + шапка + hero
   Темы: aurora (фиолетово-синий градиент, освежённый),
         mint (свежий мятный акцент), electric (моно-синий)
   ============================================================ */

:root {
  --font-display: "Unbounded", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 20px;
  --radius-sm: 12px;
  --container: 1160px;
  --header-h: 68px;
}

/* ---------- Тема: Aurora (по умолчанию) ---------- */
html[data-theme="aurora"] {
  --bg: oklch(0.135 0.018 290);
  --bg-2: oklch(0.165 0.022 290);
  --surface: oklch(0.185 0.025 290 / 0.55);
  --surface-solid: oklch(0.18 0.024 290);
  --border: oklch(0.98 0.01 290 / 0.09);
  --border-strong: oklch(0.98 0.01 290 / 0.16);
  --text: oklch(0.95 0.008 290);
  --muted: oklch(0.72 0.02 285);
  --faint: oklch(0.56 0.025 285);
  --accent: oklch(0.68 0.19 295);
  --accent-2: oklch(0.71 0.15 245);
  --accent-ink: oklch(0.99 0.005 295);
  --accent-soft: oklch(0.68 0.19 295 / 0.13);
  --accent-2-soft: oklch(0.71 0.15 245 / 0.13);
  --grad: linear-gradient(120deg, oklch(0.68 0.19 295), oklch(0.71 0.15 245));
  --glow: 0 0 80px oklch(0.6 0.19 290 / 0.28);
  --hero-haze: radial-gradient(60% 50% at 70% 12%, oklch(0.45 0.14 290 / 0.22), transparent 70%),
               radial-gradient(45% 40% at 18% 30%, oklch(0.45 0.12 250 / 0.16), transparent 70%);
  --ok: oklch(0.78 0.14 165);
  --bad: oklch(0.7 0.16 22);
}

/* ---------- Тема: Mint ---------- */
html[data-theme="mint"] {
  --bg: oklch(0.145 0.012 200);
  --bg-2: oklch(0.175 0.014 200);
  --surface: oklch(0.2 0.016 200 / 0.5);
  --surface-solid: oklch(0.19 0.015 200);
  --border: oklch(0.98 0.01 180 / 0.09);
  --border-strong: oklch(0.98 0.01 180 / 0.17);
  --text: oklch(0.95 0.006 180);
  --muted: oklch(0.73 0.02 190);
  --faint: oklch(0.57 0.022 195);
  --accent: oklch(0.83 0.145 168);
  --accent-2: oklch(0.78 0.11 210);
  --accent-ink: oklch(0.2 0.04 175);
  --accent-soft: oklch(0.83 0.145 168 / 0.12);
  --accent-2-soft: oklch(0.78 0.11 210 / 0.12);
  --grad: linear-gradient(120deg, oklch(0.83 0.145 168), oklch(0.78 0.11 210));
  --glow: 0 0 80px oklch(0.7 0.13 175 / 0.22);
  --hero-haze: radial-gradient(60% 50% at 70% 12%, oklch(0.5 0.1 180 / 0.16), transparent 70%),
               radial-gradient(45% 40% at 18% 30%, oklch(0.5 0.08 220 / 0.12), transparent 70%);
  --ok: oklch(0.83 0.145 168);
  --bad: oklch(0.7 0.16 22);
}

/* ---------- Тема: Electric (моно-синий минимализм) ---------- */
html[data-theme="electric"] {
  --bg: oklch(0.14 0.014 252);
  --bg-2: oklch(0.17 0.016 252);
  --surface: oklch(0.195 0.018 252 / 0.5);
  --surface-solid: oklch(0.19 0.017 252);
  --border: oklch(0.98 0.008 252 / 0.09);
  --border-strong: oklch(0.98 0.008 252 / 0.17);
  --text: oklch(0.95 0.006 252);
  --muted: oklch(0.73 0.018 250);
  --faint: oklch(0.57 0.02 250);
  --accent: oklch(0.7 0.155 248);
  --accent-2: oklch(0.78 0.1 230);
  --accent-ink: oklch(0.99 0.004 250);
  --accent-soft: oklch(0.7 0.155 248 / 0.13);
  --accent-2-soft: oklch(0.78 0.1 230 / 0.12);
  --grad: linear-gradient(120deg, oklch(0.7 0.155 248), oklch(0.66 0.14 265));
  --glow: 0 0 80px oklch(0.6 0.15 250 / 0.25);
  --hero-haze: radial-gradient(60% 50% at 70% 12%, oklch(0.45 0.1 250 / 0.2), transparent 70%),
               radial-gradient(45% 40% at 18% 30%, oklch(0.42 0.08 265 / 0.14), transparent 70%);
  --ok: oklch(0.78 0.12 175);
  --bad: oklch(0.7 0.16 22);
}

/* ---------- Тема: Neo (неоновый маджента-фиолет) ---------- */
html[data-theme="neo"] {
  --bg: oklch(0.125 0.022 310);
  --bg-2: oklch(0.155 0.026 310);
  --surface: oklch(0.18 0.03 310 / 0.5);
  --surface-solid: oklch(0.175 0.028 310);
  --border: oklch(0.98 0.01 320 / 0.09);
  --border-strong: oklch(0.98 0.01 320 / 0.17);
  --text: oklch(0.95 0.008 320);
  --muted: oklch(0.73 0.025 315);
  --faint: oklch(0.57 0.03 315);
  --accent: oklch(0.7 0.21 330);
  --accent-2: oklch(0.66 0.19 290);
  --accent-ink: oklch(0.99 0.005 330);
  --accent-soft: oklch(0.7 0.21 330 / 0.13);
  --accent-2-soft: oklch(0.66 0.19 290 / 0.13);
  --grad: linear-gradient(120deg, oklch(0.7 0.21 330), oklch(0.66 0.19 290));
  --glow: 0 0 80px oklch(0.6 0.2 320 / 0.3);
  --hero-haze: radial-gradient(60% 50% at 70% 12%, oklch(0.45 0.16 325 / 0.22), transparent 70%),
               radial-gradient(45% 40% at 18% 30%, oklch(0.42 0.14 290 / 0.16), transparent 70%);
  --ok: oklch(0.78 0.14 165);
  --bad: oklch(0.72 0.16 22);
}

/* ---------- Тема: Carbon (графит + лайм) ---------- */
html[data-theme="carbon"] {
  --bg: oklch(0.15 0.004 260);
  --bg-2: oklch(0.18 0.005 260);
  --surface: oklch(0.205 0.006 260 / 0.5);
  --surface-solid: oklch(0.2 0.006 260);
  --border: oklch(0.98 0.002 260 / 0.09);
  --border-strong: oklch(0.98 0.002 260 / 0.17);
  --text: oklch(0.95 0.003 260);
  --muted: oklch(0.73 0.008 260);
  --faint: oklch(0.57 0.01 260);
  --accent: oklch(0.87 0.18 128);
  --accent-2: oklch(0.8 0.11 195);
  --accent-ink: oklch(0.22 0.05 130);
  --accent-soft: oklch(0.87 0.18 128 / 0.11);
  --accent-2-soft: oklch(0.8 0.11 195 / 0.11);
  --grad: linear-gradient(120deg, oklch(0.87 0.18 128), oklch(0.8 0.11 195));
  --glow: 0 0 80px oklch(0.75 0.14 135 / 0.18);
  --hero-haze: radial-gradient(60% 50% at 70% 12%, oklch(0.5 0.09 130 / 0.14), transparent 70%),
               radial-gradient(45% 40% at 18% 30%, oklch(0.5 0.07 200 / 0.11), transparent 70%);
  --ok: oklch(0.87 0.18 128);
  --bad: oklch(0.7 0.16 22);
}

/* ============ База ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html[data-anim="off"] { scroll-behavior: auto; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
a { color: inherit; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

/* Появление при скролле */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.6, 0.2, 1);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
html[data-anim="off"] .reveal,
html[data-anim="off"] .reveal.is-in { opacity: 1; transform: none; transition: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============ Кнопки ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  border-radius: 999px;
  padding: 15px 30px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}
.btn-primary {
  background: var(--grad);
  color: var(--accent-ink);
  box-shadow: 0 8px 28px -10px var(--accent);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 36px -10px var(--accent); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover { border-color: var(--accent); background: var(--accent-soft); }
.btn-sm { padding: 10px 20px; font-size: 14.5px; }

/* ============ Шапка ============ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--border); }
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.logo-mark {
  width: 37px;
  height: 37px;
  border-radius: 11px;
  background: var(--grad);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 5px 16px -5px var(--accent), inset 0 1px 0 oklch(1 0 0 / 0.25);
  flex-shrink: 0;
}
.logo-mark svg { display: block; }
.logo-word em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}
.main-nav a:hover { color: var(--text); background: var(--accent-soft); }

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 86px) 0 96px;
  background-image: var(--hero-haze);
  background-repeat: no-repeat;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--border-strong);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 7px 16px;
  margin-bottom: 28px;
}
.hero-eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2.2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-soft); opacity: 1; }
  50% { box-shadow: 0 0 0 6px transparent; opacity: 0.6; }
}
html[data-anim="off"] .hero-eyebrow .dot { animation: none; }

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 4.6vw, 58px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.hero h1 .grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 19px;
  color: var(--muted);
  max-width: 32em;
  margin-bottom: 36px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 56px; }

.hero-stats {
  display: flex;
  gap: 48px;
  border-top: 1px solid var(--border);
  padding-top: 28px;
}
.stat .stat-num {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0.01em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat .stat-label {
  font-size: 14px;
  color: var(--faint);
  margin-top: 4px;
}

/* --- Hero-визуал: живая схема синхронизации --- */
.relay {
  position: relative;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface), transparent);
  border-radius: calc(var(--radius) + 6px);
  padding: 30px 32px 26px;
  box-shadow: var(--glow);
  overflow: hidden;
  will-change: transform;
  transition: transform 0.2s ease-out, box-shadow 0.3s ease;
}
/* фоновая сетка */
.relay::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 30px 30px;
  -webkit-mask-image: radial-gradient(70% 70% at 50% 45%, black 30%, transparent 100%);
  mask-image: radial-gradient(70% 70% at 50% 45%, black 30%, transparent 100%);
  opacity: 0.5;
  pointer-events: none;
}
/* медленно вращающаяся цветовая дымка */
.relay-aurora {
  position: absolute;
  inset: -45%;
  background: conic-gradient(from 0deg,
    transparent 0deg,
    var(--accent-soft) 70deg,
    transparent 140deg,
    var(--accent-2-soft) 220deg,
    transparent 300deg);
  filter: blur(46px);
  animation: relay-spin 60s linear infinite;
  pointer-events: none;
}
@keyframes relay-spin { to { transform: rotate(360deg); } }
html[data-anim="off"] .relay-aurora { animation: none; }
.relay-head {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 26px;
}
.relay-live {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--ok);
}
.relay-live::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok);
  animation: pulse-dot 1.8s ease-in-out infinite;
}
html[data-anim="off"] .relay-live::before { animation: none; }

.relay-flow {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
/* летящая карточка поста */
.sync-card {
  position: absolute;
  left: 50%;
  top: 0;
  z-index: 4;
  width: 132px;
  padding: 9px 10px;
  border-radius: 11px;
  background: var(--surface-solid);
  border: 1px solid color-mix(in oklab, var(--accent) 55%, transparent);
  box-shadow: 0 8px 26px -8px var(--accent);
  transform: translateX(-50%) scale(0.96);
  opacity: 0;
  animation: sync-travel 6s cubic-bezier(0.45, 0.05, 0.4, 0.95) infinite;
  will-change: top, transform, opacity;
  pointer-events: none;
}
.sync-card .sc-top {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 7px;
}
.sync-card .sc-ava {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--grad);
  flex-shrink: 0;
}
.sync-card .sc-handle {
  width: 46px; height: 4px;
  border-radius: 3px;
  background: var(--border-strong);
}
.sync-card .sc-img {
  height: 26px;
  border-radius: 6px;
  background: linear-gradient(110deg, var(--accent-soft) 25%, var(--accent-2-soft) 45%, var(--accent-soft) 65%);
  background-size: 220% 100%;
  animation: sc-shimmer 2.2s linear infinite;
  margin-bottom: 7px;
}
@keyframes sc-shimmer {
  from { background-position: 110% 0; }
  to { background-position: -110% 0; }
}
html[data-anim="off"] .sync-card .sc-img { animation: none; }
.sync-card .sc-line {
  height: 5px;
  border-radius: 3px;
  background: var(--border-strong);
  margin-top: 5px;
}
.sync-card .sc-line.short { width: 62%; }
@keyframes sync-travel {
  0%, 13% { top: 10%; opacity: 0; transform: translateX(-50%) scale(0.96); }
  21%  { opacity: 1; }
  46%  { top: 43%; transform: translateX(-50%) scale(0.46) rotate(-2deg); filter: brightness(1.25); opacity: 1; }
  51%  { top: 50%; transform: translateX(-50%) scale(0.34) rotate(0deg); opacity: 0.45; }
  56%  { top: 57%; transform: translateX(-50%) scale(0.46) rotate(2deg); opacity: 1; filter: brightness(1.25); }
  80%  { top: 82%; opacity: 1; transform: translateX(-50%) scale(0.96) rotate(0deg); filter: none; }
  86%, 100% { top: 85%; opacity: 0; transform: translateX(-50%) scale(0.96) rotate(0deg); }
}
html[data-anim="off"] .sync-card { display: none; }
@media (prefers-reduced-motion: reduce) { .sync-card { display: none; } }
.relay-node {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: 320px;
  border: 1px solid var(--border-strong);
  background: var(--surface-solid);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  position: relative;
  z-index: 1;
  box-shadow: inset 0 1px 0 oklch(1 0 0 / 0.06), 0 10px 30px -18px rgb(0 0 0 / 0.8);
}
/* пилюля «новый пост» на источнике, синхронно с вылетом карточки */
.node-pulse {
  position: absolute;
  top: -11px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-2);
  color: oklch(0.99 0.005 250);
  opacity: 0;
  transform: translateY(4px) scale(0.94);
  animation: pulse-pill 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes pulse-pill {
  0% { opacity: 0; transform: translateY(4px) scale(0.94); }
  7%, 30% { opacity: 0.95; transform: translateY(0) scale(1); }
  42%, 100% { opacity: 0; transform: translateY(-2px) scale(0.96); }
}
html[data-anim="off"] .node-pulse { animation: none; }
.relay-node .node-badge {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 13px;
  flex-shrink: 0;
}
.relay-node.src .node-badge { background: var(--accent-2-soft); color: var(--accent-2); border: 1px solid var(--accent-2); }
.relay-node.dst .node-badge { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent); }
/* фирменные иконки мессенджеров */
.relay-node .node-badge.brand { border: none; color: #fff; box-shadow: inset 0 1px 0 oklch(1 0 0 / 0.25); }
.node-badge.tg-badge, .relay-node.src .node-badge.tg-badge { background: linear-gradient(180deg, #37AEE2, #1E96C8); }
.node-badge.max-badge, .relay-node.dst .node-badge.max-badge { background: linear-gradient(135deg, #4A7DFF, #8A4BFF); }
.relay-node .node-name { font-weight: 700; font-size: 16px; }
.relay-node .node-desc { font-size: 13px; color: var(--faint); white-space: nowrap; }
/* вспышка-галочка при доставке поста */
.node-check {
  position: absolute;
  top: -9px;
  right: -9px;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--ok);
  color: oklch(0.15 0.02 200);
  font-size: 13px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transform: scale(0.4);
  animation: check-flash 6s cubic-bezier(0.34, 1.4, 0.5, 1) infinite;
}
@keyframes check-flash {
  0%, 79% { opacity: 0; transform: scale(0.4); }
  84%, 94% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(0.7); }
}
html[data-anim="off"] .node-check,
html[data-anim="off"] .relay-core::before,
html[data-anim="off"] .relay-core .ring { animation: none; }
@media (prefers-reduced-motion: reduce) {
  .node-check, .relay-aurora, .relay-core::before, .relay-core .ring { animation: none; }
}

/* ---- Варианты hero-блока (переключаются в Tweaks) ---- */
html[data-relay="pulse"] .sync-card { display: none; }
html[data-relay="minimal"] .sync-card,
html[data-relay="minimal"] .node-pulse,
html[data-relay="minimal"] .node-check,
html[data-relay="minimal"] .relay-aurora,
html[data-relay="minimal"] .relay-core .ring { display: none; }
html[data-relay="minimal"] .relay-core::before { animation-duration: 14s; }

.relay-wire {
  width: 2px;
  height: 58px;
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  position: relative;
  opacity: 0.65;
}
.relay-wire .packet {
  position: absolute;
  left: 50%;
  top: 0;
  width: 3px;
  height: 22px;
  border-radius: 999px;
  background: linear-gradient(180deg, transparent, var(--accent));
  transform: translateX(-50%);
  box-shadow: 0 0 10px var(--accent);
  animation: packet-travel 2.4s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}
@keyframes packet-travel {
  0% { top: -22px; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}
html[data-anim="off"] .relay-wire .packet { animation: none; top: 40%; }
@media (prefers-reduced-motion: reduce) {
  .relay-wire .packet, .hero-eyebrow .dot, .relay-live::before { animation: none; }
}

.relay-core {
  position: relative;
  z-index: 2;
  margin: -10px 0;
  width: 62px; height: 62px;
  border-radius: 18px;
  background: var(--grad);
  color: var(--accent-ink);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 14px;
  font-family: var(--font-body);
  box-shadow: 0 10px 34px -8px var(--accent), inset 0 1px 0 oklch(1 0 0 / 0.3);
}
/* вращающееся кольцо вокруг ядра — медленное */
.relay-core::before {
  content: "";
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0 55%, var(--accent) 78%, var(--accent-2) 92%, transparent 100%);
  -webkit-mask: radial-gradient(closest-side, transparent calc(100% - 2.5px), black calc(100% - 2px));
  mask: radial-gradient(closest-side, transparent calc(100% - 2.5px), black calc(100% - 2px));
  animation: relay-spin 6.5s linear infinite;
}
/* мягкое свечение-импульс в момент прохождения поста через ядро */
.relay-core .ring {
  position: absolute;
  inset: -5px;
  border-radius: 21px;
  border: 1px solid color-mix(in oklab, var(--accent) 65%, transparent);
  opacity: 0;
  transform: scale(1);
  animation: ring-soft 6s ease-out infinite;
  pointer-events: none;
}
@keyframes ring-soft {
  0%, 44% { opacity: 0; transform: scale(1); }
  52% { opacity: 0.45; }
  74%, 100% { opacity: 0; transform: scale(1.7); }
}

/* нижняя панель: что переносится + дневной счётчик */
.relay-foot {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 14px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
}
.relay-tags2 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.rt-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}
.rt-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.rt-chips span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 11px;
  animation: chip-glow 10s ease-in-out infinite;
}
.rt-chips span:nth-child(2) { animation-delay: 2.5s; }
.rt-chips span:nth-child(3) { animation-delay: 5s; }
.rt-chips span:nth-child(4) { animation-delay: 7.5s; }
@keyframes chip-glow {
  0%, 30%, 100% { border-color: var(--border); color: var(--muted); box-shadow: none; }
  10%, 20% { border-color: var(--accent); color: var(--text); box-shadow: 0 0 14px -5px var(--accent); }
}
html[data-anim="off"] .rt-chips span { animation: none; }
.relay-meter {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}
.meter-line {
  display: flex;
  align-items: baseline;
  gap: 9px;
}
.relay-meter .meter-count {
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.meter-unit {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text);
}

/* ============ Общие секции ============ */
.section { padding: 104px 0; }
.section-alt { background: var(--bg-2); }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 14px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 3.8vw, 47px);
  font-weight: 600;
  line-height: 1.16;
  margin-bottom: 18px;
}
.section-head p { color: var(--muted); font-size: 18px; }

/* ============ Скролл-эффекты ============ */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  z-index: 70;
  width: 100%;
  height: 3px;
  background: var(--grad);
  box-shadow: 0 0 12px var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  pointer-events: none;
}
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-orb {
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  filter: blur(95px);
  opacity: 0.5;
  will-change: transform;
}
.bg-orb.o1 { background: var(--accent-soft); top: 18%; left: -160px; }
.bg-orb.o2 { background: var(--accent-2-soft); top: 52%; right: -180px; }
.bg-orb.o3 { background: var(--accent-soft); top: 86%; left: 28%; }
main, .site-footer { position: relative; z-index: 1; }
html[data-anim="off"] .bg-orbs { display: none; }