/* ============================================================
   NETerpi — VPN-бот в Telegram
   Дизайн-система: «прорыв / разгон / рост»
   Палитра привязана к логотипу: #05070F–#0A1730, #22D3EE → #2F6BFF
   ============================================================ */

/* ---------- 1. Токены и темы ---------- */
:root {
  /* акценты бренда (не зависят от темы) */
  --cyan: #22D3EE;
  --blue: #2F6BFF;
  --blue-deep: #1E4FE0;

  /* кнопочный градиент затемнён относительно бренда ради контраста AA c белым текстом */
  --btn-a: #2563EB;
  --btn-b: #1B45D6;

  --ok: #34D399;
  --warn: #F87171;
  --star: #F5B14B;

  /* тёмная тема (по умолчанию — родная для бренда) */
  --bg: #05070F;
  --bg-soft: #070D1D;
  --card: rgba(148, 180, 255, .05);
  --card-strong: rgba(148, 180, 255, .09);
  --border: rgba(148, 180, 255, .14);
  --border-strong: rgba(148, 180, 255, .26);
  --text: #EAF1FF;
  --text-2: #A8B6D6;
  --text-3: #8291B5;
  --grad-a: #22D3EE;
  --grad-b: #4D82FF;
  --header-bg: rgba(5, 7, 15, .74);
  --chat-bubble: #101B36;
  --screen-bg: #081021;
  --shadow-card: 0 24px 60px rgba(2, 6, 20, .55);
  --shadow-btn: 0 12px 30px rgba(37, 99, 235, .38);
  --glow-1: rgba(34, 211, 238, .16);
  --glow-2: rgba(47, 107, 255, .18);

  --r-lg: 24px;
  --r-md: 16px;
  --r-sm: 10px;

  --font-head: "Unbounded", "Segoe UI", system-ui, sans-serif;
  --font-body: "Onest", "Segoe UI", system-ui, sans-serif;

  --spot-c: rgba(34, 211, 238, .11);

  color-scheme: dark;
}

[data-theme="light"] {
  --spot-c: rgba(30, 79, 224, .07);
  --bg: #F5F8FE;
  --bg-soft: #FFFFFF;
  --card: #FFFFFF;
  --card-strong: #FFFFFF;
  --border: rgba(16, 34, 70, .12);
  --border-strong: rgba(16, 34, 70, .24);
  --text: #0A1730;
  --text-2: #43547A;
  --text-3: #5A6B92;
  /* градиент заголовков затемнён для AA-контраста на светлом фоне */
  --grad-a: #0891B2;
  --grad-b: #1E4FE0;
  --header-bg: rgba(245, 248, 254, .82);
  --chat-bubble: #EDF2FC;
  --screen-bg: #0B1730; /* экран демо остаётся тёмным в обеих темах — это «монитор» */
  --shadow-card: 0 18px 44px rgba(23, 43, 99, .10);
  --shadow-btn: 0 12px 26px rgba(37, 99, 235, .28);
  --glow-1: rgba(34, 211, 238, .14);
  --glow-2: rgba(47, 107, 255, .10);

  color-scheme: light;
}

/* ---------- 2. Сброс и база ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
  /* clip (а не hidden): обрезает горизонтальный выход за пределы,
     не создавая второй скролл-контейнер */
  overflow-x: clip;
  /* фон живёт на html, чтобы canvas #bgfx (z-index:-1) был поверх него */
  background: var(--bg);
  transition: background-color .35s ease;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: transparent;
  transition: color .35s ease;
  overflow-x: clip;
}

/* ---------- Живой фон: canvas со speed-lines + плавающие сияния ---------- */
#bgfx {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}
.bg-orb {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(90px);
}
.bg-orb-1 {
  width: 540px; height: 540px;
  left: -180px; top: 10%;
  background: var(--glow-1);
  animation: orb-drift-1 27s ease-in-out infinite alternate;
}
.bg-orb-2 {
  width: 640px; height: 640px;
  right: -220px; top: 52%;
  background: var(--glow-2);
  animation: orb-drift-2 34s ease-in-out infinite alternate;
}
@keyframes orb-drift-1 {
  to { transform: translate(130px, 100px) scale(1.15); }
}
@keyframes orb-drift-2 {
  to { transform: translate(-150px, -120px) scale(.88); }
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.22;
  margin: 0 0 .5em;
  letter-spacing: 0;
  text-wrap: balance;
}

p { margin: 0 0 1em; }
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }

::selection { background: rgba(34, 211, 238, .32); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: 16px; top: -60px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--btn-b);
  color: #fff;
  border-radius: 10px;
  transition: top .2s;
}
.skip-link:focus-visible { top: 12px; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); overflow: hidden; white-space: nowrap;
}

/* ---------- 3. Утилиты ---------- */
.container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 32px);
}

.grad-text {
  background: linear-gradient(100deg, var(--grad-a), var(--grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* базовый стиль stroke-иконок из спрайта */
.ic {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
svg.ic:not([width]) { width: 18px; height: 18px; }

/* «прожектор», следующий за курсором (класс вешает JS на карточки) */
.spot { position: relative; }
.spot::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(260px circle at var(--sx, 50%) var(--sy, 50%), var(--spot-c), transparent 70%);
  opacity: 0;
  transition: opacity .35s;
  pointer-events: none;
}
.spot:hover::before { opacity: 1; }

.section { padding-block: clamp(64px, 9vw, 110px); }

.section-head { max-width: 640px; margin-bottom: clamp(36px, 5vw, 56px); }
.section-head h2 { font-size: clamp(1.3rem, .9rem + 1.6vw, 1.95rem); font-weight: 700; }
.section-head p { color: var(--text-2); font-size: 1.06rem; margin: 0; }
.section-head.center { margin-inline: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--card);
  font-family: var(--font-head);
  font-size: .66rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-2);
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: linear-gradient(120deg, var(--cyan), var(--blue));
  animation: pulse-dot 2.2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, .45); }
  50%      { box-shadow: 0 0 0 6px rgba(34, 211, 238, 0); }
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-2);
  white-space: nowrap;
}

/* ---------- 4. Кнопки ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .01em;
  line-height: 1.25;
  white-space: nowrap;
  transition: transform .25s cubic-bezier(.2, .8, .3, 1.2), translate .2s ease-out, box-shadow .3s, background-color .3s, border-color .3s, color .3s;
  /* магнитное смещение живёт в отдельном свойстве translate, не конфликтуя с transform */
  translate: var(--mx, 0) var(--my, 0);
  will-change: transform;
}
.btn svg { flex: none; }

.btn-primary {
  background: linear-gradient(120deg, var(--btn-a), var(--btn-b));
  color: #fff;
  box-shadow: var(--shadow-btn), inset 0 1px 0 rgba(255, 255, 255, .22);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(37, 99, 235, .5), 0 0 0 1px rgba(34, 211, 238, .35), 0 0 34px var(--glow-1), inset 0 1px 0 rgba(255, 255, 255, .22);
}
.btn-primary:active { transform: translateY(0) scale(.98); }

.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover {
  border-color: var(--cyan);
  background: var(--card);
  transform: translateY(-2px);
}
.btn-ghost:active { transform: translateY(0) scale(.98); }

.btn-lg { padding: 17px 34px; font-size: .98rem; }
.btn-sm { padding: 10px 20px; font-size: .78rem; }

/* ---------- 5. Шапка ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  transition: background-color .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  backdrop-filter: blur(16px) saturate(1.4);
  border-bottom-color: var(--border);
}
.site-header.nav-open {
  background: var(--bg-soft);
  border-bottom-color: transparent;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 74px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: none;
}
.logo-mark { width: 42px; height: 42px; flex: none; }
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-word {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: 0;
  color: var(--text);
}
.logo-tag {
  font-size: .6rem;
  font-weight: 600;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 4px;
}

.main-nav { margin-inline: auto; }
.main-nav ul { display: flex; gap: clamp(16px, 2.4vw, 30px); }
.main-nav a {
  font-size: .94rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 8px 2px;
  position: relative;
  transition: color .25s;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  transition: right .3s cubic-bezier(.2, .8, .3, 1);
}
.main-nav a:hover, .main-nav a[aria-current="true"] { color: var(--text); }
.main-nav a:hover::after, .main-nav a[aria-current="true"]::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: 12px; flex: none; }

.theme-toggle {
  position: relative;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color .25s, background-color .25s, transform .25s;
}
.theme-toggle:hover { border-color: var(--cyan); background: var(--card); transform: rotate(15deg); }
.theme-toggle svg { position: absolute; width: 19px; height: 19px; transition: opacity .3s, transform .45s cubic-bezier(.2, .8, .3, 1.3); }
.icon-sun  { opacity: 0; transform: rotate(-90deg) scale(.4); }
.icon-moon { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="light"] .icon-sun  { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="light"] .icon-moon { opacity: 0; transform: rotate(90deg) scale(.4); }

.burger {
  display: none;
  width: 42px; height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  position: relative;
}
.burger span, .burger span::before, .burger span::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 18px; height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform .3s, opacity .3s;
}
.burger span { transform: translate(-50%, -50%); }
.burger span::before { left: 0; top: -6px; }
.burger span::after  { left: 0; top: 6px; }
.nav-open .burger span { background: transparent; }
.nav-open .burger span::before { transform: translateY(6px) rotate(45deg); background: var(--text); }
.nav-open .burger span::after  { transform: translateY(-6px) rotate(-45deg); background: var(--text); }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(130px, 16vh, 176px);
  padding-bottom: clamp(48px, 7vw, 90px);
  overflow: clip;
}
/* декоративные speed-lines в фоне hero (сияния — глобальные .bg-orb) */
.hero-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    -38deg,
    transparent 0 90px,
    rgba(34, 211, 238, .05) 90px 92px,
    transparent 92px 210px,
    rgba(47, 107, 255, .05) 210px 212px
  );
  -webkit-mask-image: radial-gradient(70% 70% at 60% 30%, #000 20%, transparent 75%);
  mask-image: radial-gradient(70% 70% at 60% 30%, #000 20%, transparent 75%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
  gap: clamp(36px, 5vw, 64px);
  align-items: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 1rem + 3.4vw, 3.15rem);
  font-weight: 700;
  margin: 20px 0 18px;
}
.hero-sub {
  font-size: clamp(1.02rem, .95rem + .4vw, 1.2rem);
  color: var(--text-2);
  max-width: 46ch;
  margin-bottom: 30px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }

.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  color: var(--text-3);
  font-size: .9rem;
}
.trust-line li { display: inline-flex; align-items: center; gap: 7px; }
.trust-line svg { width: 15px; height: 15px; color: var(--cyan); flex: none; }

/* ---------- 7. «Точка прорыва» — интерактивная демо-панель ---------- */
.breach {
  position: relative;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background:
    linear-gradient(160deg, rgba(34, 211, 238, .07), transparent 40%),
    var(--screen-bg);
  box-shadow: var(--shadow-card);
  padding: 18px;
  overflow: hidden;
  isolation: isolate;
}

.mock-chrome {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 2px 4px 14px;
}
.mock-chrome i {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(148, 180, 255, .22);
}
.mock-url {
  flex: 1;
  margin-left: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(148, 180, 255, .08);
  border: 1px solid rgba(148, 180, 255, .1);
  font-size: .78rem;
  color: #93A6CE;
  letter-spacing: .02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* внутренний экран, который «оживает» */
.breach-screen {
  position: relative;
  border-radius: var(--r-md);
  background: rgba(148, 180, 255, .045);
  border: 1px solid rgba(148, 180, 255, .08);
  padding: clamp(16px, 3vw, 26px);
  transition: filter .8s ease;
}
.breach[data-state="locked"] .breach-screen,
.breach[data-state="breaking"] .breach-screen {
  filter: grayscale(.94) brightness(.72) saturate(.5);
}
.breach[data-state="open"] .breach-screen { filter: none; }

/* спидометр */
.gauge-wrap { display: flex; flex-direction: column; align-items: center; }
.gauge { width: min(64%, 240px); }
.gauge-track { stroke: rgba(148, 180, 255, .16); }
.gauge-progress {
  stroke: url(#gaugeGrad);
  stroke-dasharray: 100;
  stroke-dashoffset: 96;
  transition: stroke-dashoffset 1.1s cubic-bezier(.3, 1.1, .35, 1);
}
.breach[data-state="open"] .gauge-progress { stroke-dashoffset: 7; }
.gauge-needle {
  transform: rotate(-76deg);
  transform-origin: 100px 100px;
  transition: transform 1.15s cubic-bezier(.34, 1.35, .4, 1);
}
.breach[data-state="open"] .gauge-needle { transform: rotate(74deg); }

.gauge-readout {
  display: flex;
  align-items: baseline;
  gap: 7px;
  margin-top: -8px;
  font-family: var(--font-head);
}
.gauge-value {
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: #EAF1FF;
  min-width: 3ch;
  text-align: right;
}
.gauge-unit { font-size: .85rem; font-weight: 600; color: #93A6CE; }

/* иконки сервисов */
.svc-row {
  display: flex;
  justify-content: center;
  gap: clamp(8px, 2vw, 14px);
  margin: 18px 0 20px;
}
.svc {
  width: 44px; height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(148, 180, 255, .08);
  border: 1px solid rgba(148, 180, 255, .1);
  color: #7E93BE;
  transition: color .5s, border-color .5s, box-shadow .5s, transform .5s;
}
.svc svg { width: 21px; height: 21px; }
.breach[data-state="open"] .svc {
  color: var(--cyan);
  border-color: rgba(34, 211, 238, .38);
  box-shadow: 0 0 18px rgba(34, 211, 238, .18);
}
.breach[data-state="open"] .svc:nth-child(2n) { color: #6E97FF; border-color: rgba(110, 151, 255, .4); box-shadow: 0 0 18px rgba(110, 151, 255, .2); }
.breach[data-state="open"] .svc { transform: translateY(-3px); }

/* статус и замок */
.net-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  width: fit-content;
  margin-inline: auto;
  padding: 9px 20px;
  border-radius: 999px;
  border: 1px solid rgba(148, 180, 255, .16);
  background: rgba(5, 10, 25, .5);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .78rem;
  color: #C7D4F2;
}
.net-status .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--warn);
  transition: background-color .4s, box-shadow .4s;
}
.breach[data-state="open"] .net-status .dot {
  background: var(--ok);
  box-shadow: 0 0 12px rgba(52, 211, 153, .8);
}
.lock-badge {
  position: absolute;
  top: 14px; right: 14px;
  width: 38px; height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(5, 10, 25, .55);
  border: 1px solid rgba(148, 180, 255, .16);
  color: #93A6CE;
  transition: color .45s, border-color .45s, transform .45s;
}
.lock-badge svg { width: 17px; height: 17px; }
.lock-badge .shackle { transition: transform .5s cubic-bezier(.3, 1.4, .4, 1); transform-origin: 7px 11px; }
.breach[data-state="open"] .lock-badge { color: var(--ok); border-color: rgba(52, 211, 153, .45); transform: rotate(-8deg); }
.breach[data-state="open"] .lock-badge .shackle { transform: rotate(-38deg); }

/* решётка-барьер (сегменты генерирует JS) */
.barrier {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  transition: opacity .5s;
}
.barrier line {
  stroke: rgba(163, 190, 235, .34);
  stroke-width: 1.5;
  stroke-linecap: round;
  transform-box: fill-box;
  transform-origin: center;
}
[data-theme="light"] .barrier line { stroke: rgba(163, 190, 235, .4); }
.breach[data-state="open"] .barrier { opacity: 0; }

/* комета: N-стрелка со speed-lines следом */
.comet {
  position: absolute;
  z-index: 6;
  left: 0; top: 0;
  width: 190px;
  opacity: 0;
  pointer-events: none;
  filter: drop-shadow(0 0 14px rgba(34, 211, 238, .65));
}

/* вспышка в точке удара */
.impact-ring {
  position: absolute;
  z-index: 5;
  width: 26px; height: 26px;
  margin: -13px 0 0 -13px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  opacity: 0;
  pointer-events: none;
}
.impact-ring.burst { animation: ring-burst .65s cubic-bezier(.2, .7, .3, 1) forwards; }
@keyframes ring-burst {
  0%   { opacity: .95; transform: scale(.4); border-width: 3px; }
  100% { opacity: 0;   transform: scale(9);  border-width: 1px; }
}

/* подпись-подсказка под панелью */
.breach-hint {
  margin: 14px 4px 0;
  text-align: center;
  font-size: .84rem;
  color: var(--text-3);
}

/* ---------- 8. Живая статистика ---------- */
.stats { border-block: 1px solid var(--border); background: var(--card); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-block: clamp(28px, 4vw, 44px);
}
.stat {
  text-align: center;
  padding-inline: 12px;
  border-left: 1px solid var(--border);
}
.stat:first-child { border-left: 0; }
.stat-value {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.45rem, 1rem + 1.7vw, 2.15rem);
  font-variant-numeric: tabular-nums;
  background: linear-gradient(100deg, var(--grad-a), var(--grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { color: var(--text-2); font-size: .92rem; margin-top: 2px; }

/* ---------- 9. Три причины ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.why-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(24px, 3vw, 32px);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow-card);
  transition: transform .35s cubic-bezier(.2, .8, .3, 1), border-color .35s, box-shadow .35s;
}
.why-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 30px 70px rgba(2, 6, 20, .55), 0 0 0 1px rgba(34, 211, 238, .12);
}
[data-theme="light"] .why-card:hover { box-shadow: 0 26px 60px rgba(23, 43, 99, .16); }

.card-icon {
  width: 52px; height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, rgba(34, 211, 238, .14), rgba(47, 107, 255, .14));
  border: 1px solid var(--border);
}
.card-icon svg {
  width: 25px; height: 25px;
  fill: none;
  stroke: url(#iconGrad) var(--blue);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.why-card h3 { font-size: 1.05rem; font-weight: 600; margin: 4px 0 0; }
.why-card p { color: var(--text-2); font-size: .96rem; margin: 0; }
.card-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 6px; }

/* ---------- 10. Как это работает ---------- */
.how-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  gap: clamp(36px, 6vw, 80px);
  align-items: center;
}

.steps { display: flex; flex-direction: column; gap: 8px; counter-reset: step; }
.step {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  padding: 18px 0;
}
.step-num {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .88rem;
  color: #fff;
  background: linear-gradient(135deg, var(--btn-a), var(--btn-b));
  box-shadow: 0 8px 22px rgba(37, 99, 235, .35);
}
.step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 25.5px; top: 76px; bottom: -12px;
  width: 1px;
  background: linear-gradient(180deg, var(--border-strong), transparent);
}
.step h3 { font-size: .98rem; font-weight: 600; margin: 8px 0 4px; }
.step p { color: var(--text-2); font-size: .95rem; margin: 0; max-width: 44ch; }

/* мокап чата с ботом */
.chat {
  border-radius: 22px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.chat-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  transition: background-color .3s;
}
a.chat-head:hover { background: var(--card-strong); }
.chat-ava { width: 40px; height: 40px; border-radius: 50%; flex: none; }
.chat-name { font-family: var(--font-head); font-weight: 600; font-size: .8rem; display: flex; align-items: center; gap: 7px; }
.chat-name .chip { padding: 2px 8px; font-size: .66rem; }
.chat-status { font-size: .78rem; color: var(--ok); }
.chat-body { padding: 18px 16px 20px; display: flex; flex-direction: column; gap: 10px; }

.msg {
  max-width: 84%;
  padding: 11px 15px;
  border-radius: 16px;
  font-size: .9rem;
  line-height: 1.5;
}
.msg-in {
  align-self: flex-start;
  background: var(--chat-bubble);
  border: 1px solid var(--border);
  border-bottom-left-radius: 5px;
}
.msg-out {
  align-self: flex-end;
  background: linear-gradient(120deg, var(--btn-a), var(--btn-b));
  color: #fff;
  border-bottom-right-radius: 5px;
}
.msg-time { display: block; margin-top: 4px; font-size: .68rem; opacity: .6; text-align: right; }

.tg-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 9px;
  padding: 9px 12px;
  border-radius: 10px;
  background: rgba(47, 107, 255, .14);
  border: 1px solid rgba(47, 107, 255, .35);
  color: var(--blue);
  font-weight: 600;
  font-size: .84rem;
  transition: background-color .25s, border-color .25s;
}
a.tg-btn:hover { background: rgba(47, 107, 255, .24); border-color: var(--blue); }
[data-theme="light"] .tg-btn { color: var(--blue-deep); }

.key-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 9px;
  padding: 8px 12px;
  border-radius: 10px;
  background: rgba(5, 10, 25, .5);
  border: 1px solid var(--border);
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: .76rem;
  color: var(--cyan);
}
[data-theme="light"] .key-line { background: #0B1730; }
.key-line span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.key-line svg { width: 14px; height: 14px; flex: none; opacity: .8; }

.chat-connected {
  align-self: center;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid rgba(52, 211, 153, .4);
  background: rgba(52, 211, 153, .1);
  color: var(--ok);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .72rem;
}

/* ---------- 11. Сетка преимуществ ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.feature {
  padding: 24px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--card);
  transition: transform .3s cubic-bezier(.2, .8, .3, 1), border-color .3s, background-color .3s;
}
.feature:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--card-strong);
}
.feature .card-icon { width: 44px; height: 44px; border-radius: 13px; margin-bottom: 14px; }
.feature .card-icon svg { width: 21px; height: 21px; }
.feature h3 { font-size: .88rem; font-weight: 600; margin-bottom: 8px; line-height: 1.35; }
.feature p { color: var(--text-2); font-size: .87rem; margin: 0; }

/* ---------- 12. Отзывы ---------- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.review {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow-card);
}
.stars { display: flex; gap: 3px; color: var(--star); }
.stars svg { width: 16px; height: 16px; }
.review p { color: var(--text-2); font-size: .94rem; margin: 0; flex: 1; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-ava {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-head);
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--btn-a), var(--btn-b));
  flex: none;
}
.review-name { font-weight: 600; font-size: .93rem; }
.review-meta { font-size: .78rem; color: var(--text-3); }

/* ---------- 13. Тарифы ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  align-items: stretch;
}
.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 28px 24px 24px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--card);
  transition: transform .35s cubic-bezier(.2, .8, .3, 1), border-color .35s, box-shadow .35s;
}
.plan:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-card); }

.plan-featured {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--bg-soft), var(--bg-soft)) padding-box,
    linear-gradient(140deg, var(--cyan), var(--blue)) border-box;
  box-shadow: 0 24px 60px rgba(47, 107, 255, .22);
}
.plan-badge {
  position: absolute;
  top: -13px; left: 50%;
  transform: translateX(-50%);
  padding: 5px 14px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--btn-a), var(--btn-b));
  color: #fff;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .62rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.plan-term { font-family: var(--font-head); font-weight: 600; font-size: .9rem; }
.plan-price { display: flex; align-items: baseline; gap: 6px; margin-top: 6px; }
.plan-price strong {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.7rem;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}
.plan-price span { color: var(--text-3); font-size: .9rem; }
.plan-total { color: var(--text-3); font-size: .84rem; min-height: 1.4em; }
.plan-save {
  width: fit-content;
  margin-top: 8px;
  padding: 4px 11px;
  border-radius: 999px;
  background: rgba(52, 211, 153, .12);
  border: 1px solid rgba(52, 211, 153, .4);
  color: var(--ok);
  font-weight: 700;
  font-size: .76rem;
}
[data-theme="light"] .plan-save { color: #0B8A5C; background: rgba(52, 211, 153, .14); }

.plan-list { margin: 16px 0 20px; display: flex; flex-direction: column; gap: 9px; }
.plan-list li { display: flex; gap: 9px; align-items: flex-start; font-size: .87rem; color: var(--text-2); }
.plan-list svg { width: 16px; height: 16px; flex: none; margin-top: 2px; color: var(--cyan); }
[data-theme="light"] .plan-list svg { color: #0891B2; }
.plan .btn { margin-top: auto; width: 100%; }

.pricing-note {
  margin-top: 26px;
  text-align: center;
  color: var(--text-3);
  font-size: .88rem;
}

/* ---------- 14. FAQ ---------- */
.faq-list { max-width: 780px; margin-inline: auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 21px 4px;
  cursor: pointer;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .92rem;
  list-style: none;
  transition: color .25s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--cyan); }
[data-theme="light"] .faq-item summary:hover { color: var(--blue-deep); }
.faq-icon {
  flex: none;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  transition: transform .35s cubic-bezier(.2, .8, .3, 1), background-color .3s, border-color .3s;
}
.faq-icon svg { width: 13px; height: 13px; }
.faq-item[open] .faq-icon {
  transform: rotate(135deg);
  background: linear-gradient(120deg, var(--btn-a), var(--btn-b));
  border-color: transparent;
  color: #fff;
}
.faq-body { overflow: hidden; }
.faq-body p {
  margin: 0;
  padding: 0 44px 22px 4px;
  color: var(--text-2);
  font-size: .96rem;
  max-width: 62ch;
}

/* ---------- 15. Финальный CTA ---------- */
.cta-final { padding-block: clamp(30px, 6vw, 70px); }
.cta-card {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: clamp(48px, 7vw, 84px) clamp(24px, 5vw, 60px);
  border-radius: 28px;
  border: 1px solid transparent;
  background:
    linear-gradient(var(--bg-soft), var(--bg-soft)) padding-box,
    linear-gradient(140deg, rgba(34, 211, 238, .75), rgba(47, 107, 255, .75)) border-box;
  box-shadow: 0 30px 80px rgba(47, 107, 255, .18);
}
.cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(50% 90% at 15% 10%, var(--glow-1), transparent 60%),
    radial-gradient(50% 90% at 90% 90%, var(--glow-2), transparent 60%),
    repeating-linear-gradient(-38deg, transparent 0 70px, rgba(34, 211, 238, .05) 70px 72px);
  pointer-events: none;
}
.cta-card > * { position: relative; }
.cta-card h2 { font-size: clamp(1.35rem, .95rem + 1.9vw, 2.15rem); font-weight: 700; }
.cta-card p { color: var(--text-2); font-size: 1.08rem; max-width: 46ch; margin-inline: auto; }
.cta-card .btn { margin-top: 14px; }

/* ---------- 16. Футер ---------- */
.site-footer { border-top: 1px solid var(--border); padding: clamp(44px, 6vw, 64px) 0 28px; }
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 1fr));
  gap: 36px;
  margin-bottom: 44px;
}
.footer-brand p { color: var(--text-3); font-size: .9rem; margin: 14px 0 0; max-width: 30ch; }
.footer-col h3 {
  font-size: .66rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: var(--text-2); font-size: .93rem; transition: color .25s; }
.footer-col a:hover { color: var(--cyan); }
[data-theme="light"] .footer-col a:hover { color: var(--blue-deep); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-3);
  font-size: .85rem;
}

/* ---------- 17. Липкая мобильная CTA ---------- */
.mobile-cta {
  position: fixed;
  left: 14px; right: 14px;
  bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  z-index: 90;
  display: none;
  transform: translateY(140%);
  transition: transform .45s cubic-bezier(.2, .8, .3, 1);
}
.mobile-cta.show { transform: translateY(0); }
.mobile-cta .btn { width: 100%; box-shadow: 0 14px 40px rgba(5, 7, 15, .5), var(--shadow-btn); }

/* ---------- 18. Scroll-reveal ---------- */
html.js .reveal {
  opacity: 0;
  transform: translateY(26px);
}
html.js .reveal.in {
  opacity: 1;
  transform: none;
  transition: opacity .8s cubic-bezier(.16, 1, .3, 1), transform .8s cubic-bezier(.16, 1, .3, 1);
  transition-delay: var(--rd, 0ms);
}

/* ---------- 19. Адаптив ---------- */
@media (max-width: 1024px) {
  .main-nav {
    position: absolute;
    top: 74px; left: 0; right: 0;
    margin: 0;
    padding: 10px 24px 24px;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 24px 50px rgba(2, 6, 20, .35);
    display: none;
  }
  .nav-open .main-nav { display: block; }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { display: block; padding: 12px 4px; font-size: 1.05rem; }
  .burger { display: inline-flex; }
  .header-cta { display: none; }
  /* на мобильных nav выпадает из потока — прижимаем кнопки к правому краю */
  .header-actions { margin-left: auto; }

  .hero-grid { grid-template-columns: 1fr; }
  .breach-wrap { max-width: 560px; margin-inline: auto; width: 100%; }

  .why-grid { grid-template-columns: 1fr; max-width: 620px; margin-inline: auto; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .how-grid { grid-template-columns: 1fr; }
  .chat { max-width: 440px; margin-inline: auto; width: 100%; }
  .reviews-grid { grid-template-columns: 1fr; max-width: 620px; margin-inline: auto; }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .mobile-cta { display: block; }
  .mobile-cta .btn { font-size: .78rem; }
  body { padding-bottom: 76px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 22px; }
  .stat:nth-child(3) { border-left: 0; }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; }
  /* кнопка финального CTA шире карточки на узких экранах — растягиваем и ужимаем шрифт */
  .cta-card .btn { width: 100%; font-size: .84rem; padding-inline: 14px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .faq-body p { padding-right: 8px; }
}

/* ---------- 20. Движение: уважаем reduced-motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html.js .reveal { opacity: 1; transform: none; }
}