/* ==========================================================================
   Смазка как Краска — концепт v5 «Нанопокрытие»
   Тёмный сине-графитовый tech-мир: стекло, холодное свечение, cinematic reveal.
   ========================================================================== */

:root{
  --bg: #060a11;
  --bg-elevated: #0b121c;
  --bg-elevated-2: #0f1826;

  --glow-teal: #4fd8c4;
  --glow-cyan: #38bdf8;

  --text: #eef3f7;
  --text-muted: #9fb2c4;
  --text-faint: #7a8ba3;

  --accent: #52e0c4;
  --accent-strong: #7cf0da;
  --accent-ink: #04211c;

  /* Оранжевый с этикетки баллона — только для схем «Три шага» и их номеров */
  --label-orange: #f59e1f;
  --label-orange-ink: #2a1600;

  --glass-bg: rgba(255,255,255,0.045);
  --glass-bg-strong: rgba(255,255,255,0.075);
  --glass-border: rgba(255,255,255,0.12);
  --glass-border-strong: rgba(255,255,255,0.20);

  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;

  /* Content column width. Fixed up to a normal desktop, then eases open on very
     wide screens (>=1800px, see media query below) so 1920/2560 don't read as a
     narrow column floating in empty dark space. */
  --content-w: 1240px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.22, 1, 0.36, 1);

  /* Type scale — one deliberate set of steps instead of one-off sizes per component */
  --fs-2xs: 0.75rem;   /* 12px — uppercase micro labels, tags */
  --fs-sm: 0.875rem;   /* 14px — secondary / meta text */
  --fs-base: 1rem;     /* 16px — body copy */
  --fs-md: 1.125rem;   /* 18px — lead paragraphs, card headings */
  --fs-lg: 1.25rem;    /* 20px — stat values, emphasis */
  --fs-xl: 1.5rem;     /* 24px — modal title */

  --measure: 62ch;

  color-scheme: dark;
}

*, *::before, *::after{ box-sizing: border-box; }

html{
  scroll-behavior: smooth;
  overflow-x: clip;
}

body{
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
}

h1, h2, h3{
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text);
}

p{ margin: 0; }

img{ max-width: 100%; display: block; }

a{ color: inherit; }

ol, ul{ margin: 0; padding: 0; list-style: none; }

button{ font: inherit; color: inherit; }

::selection{
  background: rgba(82,224,196,0.32);
  color: #fff;
}

/* Focus visibility on dark backgrounds */
:focus-visible{
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link{
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 1000;
  transition: top 0.2s var(--ease-out);
}
.skip-link:focus{ top: 1rem; }

/* ==========================================================================
   Background atmosphere
   ========================================================================== */

.bg-fx{
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.bg-fx__glow{
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  will-change: transform;
}
.bg-fx__glow--a{
  width: 60vw;
  height: 60vw;
  max-width: 900px;
  max-height: 900px;
  top: -20vw;
  right: -15vw;
  background: radial-gradient(circle, rgba(56,189,248,0.35), transparent 70%);
  animation: drift-a 26s ease-in-out infinite;
}
.bg-fx__glow--b{
  width: 50vw;
  height: 50vw;
  max-width: 760px;
  max-height: 760px;
  bottom: -10vw;
  left: -10vw;
  background: radial-gradient(circle, rgba(79,216,196,0.30), transparent 70%);
  animation: drift-b 32s ease-in-out infinite;
}
/* Third blob: off by default (verified narrower breakpoints stay untouched),
   only switched on past 1800px to fill the opposite corners the a/b pair
   doesn't reach once the content column stops growing with the viewport. */
.bg-fx__glow--c{
  display: none;
}
.bg-fx__grid{
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 40%, transparent 90%);
}

@keyframes drift-a{
  0%, 100%{ transform: translate(0, 0) scale(1); }
  50%{ transform: translate(-4%, 5%) scale(1.06); }
}
@keyframes drift-b{
  0%, 100%{ transform: translate(0, 0) scale(1); }
  50%{ transform: translate(5%, -4%) scale(1.05); }
}
@keyframes drift-c{
  0%, 100%{ transform: translate(-50%, -50%) scale(1); }
  50%{ transform: translate(-46%, -54%) scale(1.04); }
}

@media (prefers-reduced-motion: reduce){
  .bg-fx__glow{ animation: none; }
}

/* ==========================================================================
   Very wide screens (1920 / 2560 and up): the fixed 1240px content column
   plus two corner glow blobs was tuned for laptop widths. Past ~1800px the
   blobs hit their px caps and stop growing while the column stays put, so
   the sides read as flat empty dark bars. Ease the column open a bit and
   let the atmosphere (glow + grid) reach further toward the edges instead
   of only bolting on more max-width.
   ========================================================================== */
@media (min-width: 1800px){
  :root{
    --content-w: clamp(1240px, 60vw, 1580px);
  }

  .bg-fx__glow--a{
    width: 46vw;
    height: 46vw;
    max-width: 1180px;
    max-height: 1180px;
    top: -16vw;
    right: -12vw;
  }
  .bg-fx__glow--b{
    width: 40vw;
    height: 40vw;
    max-width: 1020px;
    max-height: 1020px;
    bottom: -14vw;
    left: -10vw;
  }
  .bg-fx__glow--c{
    display: block;
    position: absolute;
    width: 44vw;
    height: 44vw;
    max-width: 1080px;
    max-height: 1080px;
    top: 42%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.4;
    background: radial-gradient(circle, rgba(56,189,248,0.16), transparent 72%);
    animation: drift-c 38s ease-in-out infinite;
  }

  .bg-fx__grid{
    mask-image: radial-gradient(ellipse 130% 85% at 50% 0%, black 45%, transparent 92%);
  }
}

@media (min-width: 1800px) and (prefers-reduced-motion: reduce){
  .bg-fx__glow--c{ animation: none; }
}

/* ==========================================================================
   Glass surface + fallback
   ========================================================================== */

.glass{
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.06),
    0 24px 60px -24px rgba(0,0,0,0.55);
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){
  .glass{
    background: var(--bg-elevated-2);
  }
}

/* System asks for less transparency: go frostier instead of fully solid,
   so the surface still reads as glass but stops relying on blur for contrast. */
@media (prefers-reduced-transparency: reduce){
  .glass{
    background: var(--bg-elevated-2);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* ==========================================================================
   Layout helpers
   ========================================================================== */

/* header.nav здесь не указан намеренно: селектор с тегом перебивал бы
   position:sticky у .nav по специфичности, и шапка переставала липнуть. */
main, footer.footer{
  position: relative;
  z-index: 1;
}

.section{
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 5.5rem 1.5rem;
}

.section__head{
  max-width: var(--measure);
  margin-bottom: 2.75rem;
}

.section__head h2{
  font-size: clamp(1.7rem, 1.2rem + 2vw, 2.5rem);
  margin-bottom: 0.75rem;
}

.section__head p{
  color: var(--text-muted);
  font-size: var(--fs-md);
  max-width: 52ch;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  justify-content: center;
  white-space: nowrap;
  border-radius: 999px;
  padding: 0.7rem 1.3rem;
  font-weight: 600;
  font-size: var(--fs-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s var(--ease-out), background 0.3s var(--ease-out);
}

.btn:active{ transform: scale(0.97); }

.btn--accent{
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 0 0 rgba(82,224,196,0);
}
.btn--accent:hover{
  background: var(--accent-strong);
  box-shadow: 0 14px 34px -12px rgba(82,224,196,0.55);
}

.btn__icon{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: rgba(4,33,28,0.16);
  transition: transform 0.4s var(--ease-spring);
}
.btn--accent:hover .btn__icon{ transform: translateX(2px); }

.btn--ghost{
  background: transparent;
  color: var(--text);
  border-color: var(--glass-border-strong);
}
.btn--ghost:hover{
  border-color: var(--accent);
  color: var(--accent-strong);
}

.btn--lg{ padding: 0.85rem 1.6rem; font-size: var(--fs-base); }

.btn--nav{ padding: 0.55rem 1.1rem; font-size: var(--fs-sm); }

/* ==========================================================================
   Nav
   ========================================================================== */

.nav{
  position: sticky;
  top: 0.9rem;
  z-index: 100;
  padding: 0 1rem;
}

.nav__inner{
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0.7rem 0.55rem 1rem;
  border-radius: 999px;
}

.nav__brand{ display: flex; align-items: center; }
.nav__logo{ height: 28px; width: auto; display: block; }

.nav__links{
  display: none;
  align-items: center;
  gap: 1.6rem;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}
.nav__links a{ text-decoration: none; transition: color 0.25s var(--ease-out); }
.nav__links a:hover{ color: var(--text); }

@media (min-width: 860px){
  .nav__links{ display: flex; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero{
  padding: 6.5rem 1.5rem 4rem;
  max-width: var(--content-w);
  margin: 0 auto;
}

.hero__inner{
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 960px){
  .hero__inner{
    grid-template-columns: 1.05fr 1fr;
    gap: 2rem;
  }
}

.hero__title{
  font-size: clamp(2.1rem, 1.5rem + 3.2vw, 3.4rem);
  max-width: 14ch;
}

.hero__sub{
  margin-top: 1.4rem;
  color: var(--text-muted);
  font-size: var(--fs-md);
  max-width: 46ch;
}

.hero__actions{
  margin-top: 2.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.hero__stage{
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 340px;
}

.hero__stage{ min-height: 520px; }

/* Баллон без фона: стоит прямо на странице, под ним — мягкая тень-пол,
   за ним — холодный ореол в цвет концепта. */
.hero__product{
  position: relative;
  z-index: 2;
  height: min(560px, 62vh);
  min-height: 380px;
  width: auto;
  filter: drop-shadow(0 28px 40px rgba(0,0,0,0.55)) drop-shadow(0 0 60px rgba(82,224,196,0.16));
  animation: can-float 7s var(--ease-spring) infinite alternate;
}
.hero__halo{
  position: absolute;
  z-index: 1;
  width: min(460px, 86vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 45%, rgba(82,224,196,0.22), rgba(56,189,248,0.08) 45%, transparent 68%);
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: inset 0 0 0 28px rgba(255,255,255,0.012);
}
.hero__floor{
  position: absolute;
  z-index: 1;
  bottom: calc(50% - min(280px, 31vh) - 14px);
  width: 220px;
  height: 26px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(0,0,0,0.7), transparent);
  animation: floor-breathe 7s var(--ease-spring) infinite alternate;
}
@keyframes can-float{
  from{ transform: translateY(0); }
  to{ transform: translateY(-10px); }
}
@keyframes floor-breathe{
  from{ transform: scaleX(1); opacity: 1; }
  to{ transform: scaleX(0.88); opacity: 0.7; }
}
@media (prefers-reduced-motion: reduce){
  .hero__product, .hero__floor{ animation: none; }
}
@media (max-width: 959px){
  .hero__stage{ min-height: 440px; }
  .hero__product{ height: 420px; min-height: 0; }
  .hero__floor{ bottom: calc(50% - 210px - 14px); }
}

.hero__stat{
  position: absolute;
  z-index: 3;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-md);
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.15;
}
.hero__stat strong{
  display: block;
  font-size: var(--fs-lg);
  color: var(--accent-strong);
}
.hero__stat span{
  display: block;
  font-size: var(--fs-2xs);
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.hero__stat--a{ top: 6%; left: -2%; }
.hero__stat--b{ bottom: 8%; right: -4%; }

/* Плашки висят на 2–4% за краем фото — красиво, но такой вылет помещается
   только на широком экране. Пока колонка контента упирается в поля вьюпорта,
   правая плашка вылезала за край и тянула горизонтальный скролл, поэтому
   до 1024px обе прижаты к фото. */
@media (max-width: 1023px){
  .hero__stat--a{ left: 0; top: 2%; }
  .hero__stat--b{ right: 0; bottom: 4%; }
}

/* ==========================================================================
   Proof section
   ========================================================================== */

.proof__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}
@media (min-width: 900px){
  .proof__layout{ grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 4rem; }
}

.proof__copy h2{
  font-size: clamp(1.7rem, 1.2rem + 2vw, 2.5rem);
  margin-bottom: 0.9rem;
  max-width: 16ch;
}
.proof__copy > p{
  color: var(--text-muted);
  font-size: var(--fs-md);
  max-width: 44ch;
}
.proof__legend{
  margin-top: 2rem;
  display: grid;
  gap: 0.8rem;
}
.proof__legend li{
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--text-muted);
  font-size: var(--fs-sm);
}
.proof__legend .proof__tag{ min-width: 4.4rem; text-align: center; }

/* Круглая «линза» в двойной оправе: внешнее кольцо стекла, внутри кадр */
.proof__stage{
  justify-self: center;
  width: min(540px, 100%);
  padding: 10px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 40px 80px -40px rgba(0,0,0,0.7);
}

.compare{
  --pos: 50%;
  position: relative;
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  isolation: isolate;
  cursor: ew-resize;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  background: var(--bg-elevated-2);
}
/* Исходные кадры круглые на белом квадрате: чуть увеличиваем, чтобы белые
   углы ушли за маску, а сам кадр заполнил линзу целиком. */
.compare__img{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  pointer-events: none;
}
.compare__after{
  position: absolute;
  inset: 0;
  clip-path: inset(0 0 0 var(--pos));
}
.compare.is-hinting .compare__after{ transition: clip-path 0.7s var(--ease-spring); }
.compare.is-hinting .compare__handle{ transition: left 0.7s var(--ease-spring); }

.compare__handle{
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos);
  width: 2px;
  margin-left: -1px;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.95) 18%, rgba(255,255,255,0.95) 82%, transparent);
  box-shadow: 0 0 18px rgba(82,224,196,0.55);
  pointer-events: none;
}
.compare__knob{
  position: absolute;
  top: 50%;
  left: 50%;
  width: 3.25rem;
  height: 3.25rem;
  margin: -1.625rem 0 0 -1.625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--accent-ink);
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(6,10,17,0.35), 0 12px 30px -8px rgba(0,0,0,0.6), 0 0 28px rgba(82,224,196,0.45);
  transition: transform 0.4s var(--ease-spring), background 0.3s var(--ease-out);
}
.compare:hover .compare__knob{ background: var(--accent-strong); }
.compare.is-dragging .compare__knob{ transform: scale(0.92); }
.compare:has(.compare__range:focus-visible) .compare__knob{
  outline: 2px solid var(--accent-strong);
  outline-offset: 4px;
}

.compare__label{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  padding: 0.32rem 0.8rem;
  border-radius: 999px;
  font-size: var(--fs-2xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out);
}
.compare.hide-before .compare__label--before,
.compare.hide-after .compare__label--after{ opacity: 0; }

.compare__label--before{
  left: 7%;
  background: rgba(6,10,17,0.72);
  color: var(--text);
  border: 1px solid var(--glass-border-strong);
}
.compare__label--after{
  right: 7%;
  background: var(--accent);
  color: var(--accent-ink);
}

/* Нативный range остаётся для клавиатуры и скринридеров, мышь и палец
   обрабатывает сам кадр (pointer events в app.js). */
.compare__range{
  position: absolute;
  bottom: 50%;
  left: 50%;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.proof__tag{
  display: inline-block;
  padding: 0.32rem 0.8rem;
  border-radius: 999px;
  font-size: var(--fs-2xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(6,10,17,0.65);
  border: 1px solid var(--glass-border-strong);
  backdrop-filter: blur(8px);
}
.proof__tag--accent{
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
}

/* ==========================================================================
   How it works
   ========================================================================== */

.how__steps{
  counter-reset: how-step;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  position: relative;
}

@media (min-width: 720px){
  .how__steps{ grid-template-columns: repeat(3, 1fr); }

  /* Connecting line reads the three cards as one sequence, not three
     interchangeable feature tiles (kept visually distinct from .advantages__grid). */
  .how__steps::before{
    content: '';
    position: absolute;
    top: 2.35rem;
    left: calc(16.66% + 0.4rem);
    right: calc(16.66% + 0.4rem);
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(245,158,31,0.45) 15%, rgba(245,158,31,0.45) 85%, transparent);
    z-index: 0;
  }
}

.how__step{
  counter-increment: how-step;
  position: relative;
  padding: 1.6rem;
}
.how__step::after{
  content: counter(how-step);
  position: absolute;
  top: -0.6rem;
  left: 1.4rem;
  width: 1.9rem;
  height: 1.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--label-orange);
  color: var(--label-orange-ink);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: var(--fs-sm);
  box-shadow: 0 4px 14px -4px rgba(245,158,31,0.55);
  z-index: 1;
}
.how__art{
  aspect-ratio: 4 / 3;
  background:
    radial-gradient(120% 90% at 50% 60%, rgba(245,158,31,0.07), transparent 70%),
    #12161d;
  border: 1px solid rgba(245,158,31,0.16);
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  overflow: hidden;
}

/* ==========================================================================
   Анимированные схемы «Три шага» (SVG из tools/v5-steps-svg.mjs)
   Играют только в зоне видимости: app.js ставит .is-playing на .how__art.
   ========================================================================== */

.sa{ display: block; width: 100%; height: 100%; }
.sa *{ animation-play-state: paused; }
.how__art.is-playing .sa *{ animation-play-state: running; }

.sa .sa-fs, .sa .sa-fe, .sa .sa-ft, .sa .sa-fill, .sa .sa-rag{
  stroke: var(--label-orange);
  stroke-width: 1.4;
  stroke-linejoin: round;
}
.sa .sa-fs{ fill: #141820; }
.sa .sa-fe{ fill: #171b23; }
.sa .sa-ft{ fill: #1b2029; }
.sa .sa-fill{ fill: #161a22; }
.sa .sa-rag{ fill: #2a2117; stroke: var(--label-orange); stroke-width: 1.2; }
.sa .sa-l{
  fill: none;
  stroke: var(--label-orange);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
.sa .sa-fill.sa-l{ fill: #161a22; }
.sa .sa-thin{ stroke-width: 0.9; opacity: 0.8; }
.sa .sa-hair{ stroke-width: 0.7; opacity: 0.6; }
.sa .sa-hole{ fill: #12161d; }

.sa .sa-fe.sa-cap{ fill: #222833; }
.sa .sa-slot{ fill: #0d1015; }
.sa .sa-ball{ fill: #1b2029; stroke: var(--label-orange); stroke-width: 0.8; vector-effect: non-scaling-stroke; }
.sa .sa-under .sa-fill{ fill: #0f1217; }
.sa .sa-rag{ fill: #2a2117; stroke: var(--label-orange); stroke-width: 1.2; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.sa .sa-glint{ stroke-width: 2.2; opacity: 0.35; }
.sa .sa-brand{
  fill: #e8e2d6;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-style: italic;
  font-size: 9.5px;
  letter-spacing: -0.02em;
}
.sa .sa-brand--sm{ font-size: 6.5px; fill: var(--label-orange); }
.sa .sa-brand--xs{ font-size: 5.6px; }
.sa .sa-brand--xxs{ font-size: 3.5px; }
.sa .sa-num{
  fill: var(--label-orange);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 7px;
  text-anchor: middle;
}

/* --- Шаг 1: ветошь ходит по рельсу, грязь исчезает --- */
.sa-wiper{ animation: sa-wipe 6s cubic-bezier(0.45, 0, 0.25, 1) infinite; }
@keyframes sa-wipe{
  0%, 4%{ transform: translate(calc(var(--ux) * 130), calc(var(--uy) * 130)); }
  35%, 44%{ transform: translate(calc(var(--ux) * 40), calc(var(--uy) * 40)); }
  82%, 100%{ transform: translate(calc(var(--ux) * 130), calc(var(--uy) * 130)); }
}
/* ветошь чуть отстаёт от ладони в начале каждого хода */
.sa-ragwrap{ animation: sa-drag 6s cubic-bezier(0.45, 0, 0.25, 1) infinite; }
@keyframes sa-drag{
  0%, 4%, 35%, 44%, 82%, 100%{ transform: translate(0, 0); }
  12%, 28%{ transform: translate(calc(var(--ux) * 2.5), calc(var(--uy) * 2.5)); }
  52%, 74%{ transform: translate(calc(var(--ux) * -2.5), calc(var(--uy) * -2.5)); }
}
.sa-hand{ animation: sa-press 6s cubic-bezier(0.45, 0, 0.55, 1) infinite; }
@keyframes sa-press{
  0%, 100%{ transform: translateY(-2px); }
  6%, 33%, 46%, 80%{ transform: translateY(0.6px); }
  20%, 62%{ transform: translateY(1.4px); }
  40%{ transform: translateY(-1.5px); }
}
/* грязь — приглушённые пятна налёта, а не яркие точки */
.sa-dirt{
  fill: #6b4512;
  opacity: 0.8;
  transform-box: fill-box;
  transform-origin: center;
  animation: sa-dirt 6s cubic-bezier(0.16, 1, 0.3, 1) infinite;
  animation-delay: var(--d);
}
@keyframes sa-dirt{
  0%{ opacity: 0.8; }
  4%, 92%{ opacity: 0; }
  100%{ opacity: 0.8; }
}
/* --- Шаг 2: баллон ведут вдоль рельса, туман ложится слоем --- */
.sa-float{ animation: sa-float 2.4s cubic-bezier(0.37, 0, 0.63, 1) infinite alternate; }
@keyframes sa-float{
  from{ transform: translate(0, -1.5px) rotate(-0.6deg); }
  to{ transform: translate(0, 1.5px) rotate(0.6deg); }
}
.sa-sprayer{ animation: sa-sweep 7s cubic-bezier(0.45, 0, 0.55, 1) infinite; }
@keyframes sa-sweep{
  0%, 12%{ transform: translate(0, 0); }
  72%, 82%{ transform: translate(calc(var(--ux) * var(--run)), calc(var(--uy) * var(--run))); }
  97%, 100%{ transform: translate(0, 0); }
}
.sa-coat{ fill: var(--label-orange); stroke: none; }
.sa-coat--grow{
  fill-opacity: 0.42;
  transform-box: fill-box;
  transform-origin: 0 50%;
  animation: sa-grow 7s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}
@keyframes sa-grow{
  0%, 12%{ transform: scaleX(0); opacity: 1; }
  72%, 88%{ transform: scaleX(1); opacity: 1; }
  96%{ transform: scaleX(1); opacity: 0; }
  100%{ transform: scaleX(0); opacity: 0; }
}
/* кнопка: нажатие → туман плавно разгорается от сопла → гаснет → кнопка отжимается */
.sa-act{ animation: sa-act 7s cubic-bezier(0.34, 1.3, 0.64, 1) infinite; }
@keyframes sa-act{
  0%, 5%{ transform: translateY(0); }
  8.5%, 74%{ transform: translateY(2.4px); }
  78.5%, 100%{ transform: translateY(0); }
}
.sa-mist{
  transform-origin: 0 0;
  animation: sa-mist 7s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}
@keyframes sa-mist{
  0%, 8%{ opacity: 0; transform: scale(0.25, 0.4); }
  13%{ opacity: 1; transform: scale(1, 1); }
  71%{ opacity: 1; transform: scale(1, 1); }
  75.5%, 100%{ opacity: 0; transform: scale(0.35, 0.6); }
}
.sa-splashes{ animation: sa-soft 7s cubic-bezier(0.45, 0, 0.55, 1) infinite; }
@keyframes sa-soft{
  0%, 10%{ opacity: 0; }
  14%, 70%{ opacity: 1; }
  74%, 100%{ opacity: 0; }
}
.sa-cone{ animation: sa-flicker 0.22s cubic-bezier(0.37, 0, 0.63, 1) infinite alternate; }
@keyframes sa-flicker{
  from{ opacity: 0.7; }
  to{ opacity: 1; }
}
.sa-drop{
  fill: #ffd68a;
  animation: sa-drop 0.6s cubic-bezier(0.3, 0, 0.8, 0.6) infinite;
  animation-delay: calc(var(--i) * -0.034s);
}
@keyframes sa-drop{
  0%{ transform: translate(2px, 0); opacity: 0; }
  15%{ opacity: 1; }
  100%{ transform: translate(var(--dx), var(--dy)); opacity: 0.15; }
}
.sa-splash{
  fill: #ffd68a;
  animation: sa-splash 0.5s cubic-bezier(0.16, 1, 0.3, 1) infinite;
  animation-delay: calc(var(--i) * -0.08s);
}
@keyframes sa-splash{
  0%{ transform: translate(0, 0); opacity: 0; }
  25%{ opacity: 0.9; }
  100%{ transform: translate(var(--sx), var(--sy)); opacity: 0; }
}
.sa-spot{
  fill: var(--label-orange);
  opacity: 0;
  animation: sa-spot 7s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}
.sa-spot--core{ fill: #ffd68a; }
@keyframes sa-spot{
  0%, 10%{ opacity: 0; }
  14%, 70%{ opacity: 0.45; }
  74%, 100%{ opacity: 0; }
}

/* --- Шаг 3: секундомер, слой матовеет, каретка ездит, шарики катятся --- */
.sa-coat--dry{ animation: sa-dry 8s cubic-bezier(0.16, 1, 0.3, 1) infinite; }
@keyframes sa-dry{
  0%{ fill-opacity: 0.6; }
  32%, 92%{ fill-opacity: 0.26; }
  100%{ fill-opacity: 0.6; }
}
.sa-needle{ animation: sa-needle 8s cubic-bezier(0.45, 0, 0.55, 1) infinite; }
@keyframes sa-needle{
  0%{ transform: rotate(0deg); }
  30%, 100%{ transform: rotate(360deg); }
}
.sa-pie{
  fill: none;
  stroke: var(--label-orange);
  stroke-opacity: 0.35;
  stroke-width: 25;
  stroke-dasharray: 100 100;
  animation: sa-pie 8s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}
@keyframes sa-pie{
  0%{ stroke-dashoffset: 100; opacity: 1; }
  30%, 92%{ stroke-dashoffset: 0; opacity: 1; }
  100%{ stroke-dashoffset: 0; opacity: 0; }
}
.sa-check{
  fill: none;
  stroke: var(--label-orange);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 100;
  animation: sa-check 8s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}
@keyframes sa-check{
  0%, 30%{ stroke-dashoffset: 100; opacity: 0; }
  31%{ stroke-dashoffset: 100; opacity: 1; }
  39%, 92%{ stroke-dashoffset: 0; opacity: 1; }
  100%{ stroke-dashoffset: 0; opacity: 0; }
}
/* каретка, маска ближней части рельса и шарики движутся по одной кривой */
.sa-slider{ animation: sa-slide 8s cubic-bezier(0.65, 0, 0.35, 1) infinite; }
@keyframes sa-slide{
  0%, 40%{ transform: translate(0, 0); }
  54%{ transform: translate(calc(var(--ux) * 60), calc(var(--uy) * 60)); }
  70%{ transform: translate(calc(var(--ux) * -56), calc(var(--uy) * -56)); }
  84%{ transform: translate(calc(var(--ux) * 36), calc(var(--uy) * 36)); }
  94%, 100%{ transform: translate(0, 0); }
}
.sa-clipmove{
  transform: var(--m);
  animation: sa-slide-clip 8s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}
@keyframes sa-slide-clip{
  0%, 40%{ transform: var(--m) translateX(0); }
  54%{ transform: var(--m) translateX(60px); }
  70%{ transform: var(--m) translateX(-56px); }
  84%{ transform: var(--m) translateX(36px); }
  94%, 100%{ transform: var(--m) translateX(0); }
}
.sa-balls{ animation: sa-roll 8s cubic-bezier(0.65, 0, 0.35, 1) infinite; }
@keyframes sa-roll{
  0%, 40%{ transform: translateX(0); }
  54%{ transform: translateX(-30px); }
  70%{ transform: translateX(28px); }
  84%{ transform: translateX(-18px); }
  94%, 100%{ transform: translateX(0); }
}
.sa-sheen{
  fill: #ffd68a;
  opacity: 0;
  animation: sa-sheen 8s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}
@keyframes sa-sheen{
  0%, 40%{ transform: translateX(0); opacity: 0; }
  42%{ transform: translateX(0); opacity: 0.4; }
  62%{ transform: translateX(210px); opacity: 0.4; }
  64%, 100%{ transform: translateX(210px); opacity: 0; }
}

/* Без анимации — итоговые кадры: чистый рельс, слой нанесён, таймер вышел */
@media (prefers-reduced-motion: reduce){
  .sa *{ animation: none !important; }
  .sa-dirt, .sa-mist, .sa-splashes, .sa-spot, .sa-sheen{ opacity: 0; }
  .sa-wiper{ transform: translate(calc(var(--ux) * 130), calc(var(--uy) * 130)); }
  .sa-pie{ stroke-dashoffset: 0; }
  .sa-coat--dry{ fill-opacity: 0.26; }
}
.how__step h3{
  font-size: var(--fs-md);
  margin-bottom: 0.4rem;
}
.how__step p{
  color: var(--text-muted);
  font-size: var(--fs-base);
}

/* ==========================================================================
   Видео
   ========================================================================== */

.video .section__head{ margin-left: auto; margin-right: auto; text-align: center; }
.video .section__head p{ margin: 0 auto; }

/* Двойная оправа: стеклянное кольцо, внутри кадр 16:9.
   Ширина ограничена: обложка с Rutube всего 640×360. */
.video__frame{
  max-width: 880px;
  margin: 0 auto;
  padding: 10px;
  border-radius: calc(var(--radius-lg) + 10px);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.07), 0 40px 90px -45px rgba(0,0,0,0.8);
}

.video__player{
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #05080d;
  isolation: isolate;
}

.video__poster{
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.001);
  transition: transform 1.2s var(--ease-out), opacity 0.5s var(--ease-out);
}
.video__player::after{
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 70% at 50% 55%, transparent 40%, rgba(4,8,14,0.55)),
    linear-gradient(0deg, rgba(4,8,14,0.55), transparent 45%);
  pointer-events: none;
  transition: opacity 0.5s var(--ease-out);
}

.video__play{
  position: absolute;
  z-index: 1;
  left: 50%;
  bottom: clamp(1rem, 4%, 2rem);
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.5rem 1.4rem 0.5rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border-strong);
  background: rgba(6,10,17,0.62);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: var(--fs-base);
  cursor: pointer;
  transition: transform 0.45s var(--ease-spring), background 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}
.video__play-icon{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 0 0 6px rgba(82,224,196,0.14), 0 0 30px rgba(82,224,196,0.4);
  transition: transform 0.45s var(--ease-spring), box-shadow 0.45s var(--ease-out);
}
.video__play-icon svg{ margin-left: 2px; }
.video__play-text{ display: flex; align-items: baseline; gap: 0.6rem; }
.video__time{
  font-family: 'Inter', sans-serif;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-muted);
}

.video__player:hover .video__poster{ transform: scale(1.03); }
.video__play:hover{ background: rgba(6,10,17,0.8); border-color: var(--accent); }
.video__play:hover .video__play-icon{
  transform: scale(1.06);
  box-shadow: 0 0 0 9px rgba(82,224,196,0.16), 0 0 40px rgba(82,224,196,0.5);
}
.video__play:active{ transform: translateX(-50%) scale(0.97); }

.video__iframe{
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  border: 0;
}
.video__player.is-playing .video__play{ display: none; }
.video__player.is-playing::after{ opacity: 0; }

@media (max-width: 479px){
  .video__frame{ padding: 6px; border-radius: calc(var(--radius-md) + 6px); }
  .video__player{ border-radius: var(--radius-md); }
  .video__play{ padding: 0.4rem 1rem 0.4rem 0.4rem; font-size: var(--fs-sm); gap: 0.6rem; }
  .video__play-icon{ width: 2.5rem; height: 2.5rem; }
}

@media (prefers-reduced-motion: reduce){
  .video__poster, .video__play, .video__play-icon{ transition: none; }
  .video__player:hover .video__poster{ transform: none; }
}

/* ==========================================================================
   Uses (bento)
   ========================================================================== */

/* minmax(0, 1fr), а не просто 1fr: иначе минимальная ширина содержимого
   карточки распирает колонки на узких экранах (320px) и страницу уводит вбок. */
.uses__grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

@media (min-width: 720px){
  .uses__grid{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.uses__card{
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}


.uses__card img{
  width: 100%;
  height: auto; /* атрибут height=180 иначе перебивает aspect-ratio */
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: var(--bg-elevated-2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.6rem;
}

.uses__card span{
  overflow-wrap: anywhere;
  hyphens: auto;
  font-size: var(--fs-sm);
  color: var(--text);
  font-weight: 500;
}

@media (max-width: 479px){
  .uses__grid{ gap: 0.75rem; }
  .uses__card{ padding: 0.75rem; gap: 0.65rem; border-radius: var(--radius-md); }
  .uses__card img{ padding: 0.35rem; }
  .uses__card span{ font-size: 0.8125rem; line-height: 1.3; }
}

/* ==========================================================================
   Label strip
   ========================================================================== */

.label-strip{ padding: 0 1.5rem 5.5rem; }

.label-strip__inner{
  max-width: var(--content-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  padding: 2rem;
}

@media (min-width: 780px){
  .label-strip__inner{
    grid-template-columns: 0.9fr 1.1fr;
    padding: 2.5rem;
  }
}

.label-strip__inner img{
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.label-strip__copy h2{
  font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2rem);
  margin-bottom: 0.9rem;
}
.label-strip__copy p{
  color: var(--text-muted);
  max-width: 48ch;
}

/* ==========================================================================
   Advantages
   ========================================================================== */

/* Accent detail: teal particles settling into a thin glowing coating —
   echoes the "sprays on, dries into a film" idea right above the cards
   that explain why the film holds. Inline SVG, transform/opacity only. */
.coat-fx{
  display: flex;
  justify-content: center;
  margin: -0.5rem 0 2.5rem;
  pointer-events: none;
}
.coat-fx__svg{
  width: min(220px, 60vw);
  height: auto;
  overflow: visible;
}
.coat-fx__layer{
  stroke-dasharray: 100;
  animation: coatDraw 4.8s var(--ease-out) infinite;
}
.coat-fx__p{
  transform-box: fill-box;
  transform-origin: center;
  animation: coatFall 3.4s var(--ease-out) infinite;
}
.coat-fx__p--1{ animation-delay: 0s; }
.coat-fx__p--2{ animation-delay: 0.5s; }
.coat-fx__p--3{ animation-delay: 1s; }
.coat-fx__p--4{ animation-delay: 1.5s; }
.coat-fx__p--5{ animation-delay: 2s; }
.coat-fx__p--6{ animation-delay: 2.5s; }

@keyframes coatFall{
  0%{ opacity: 0; transform: translateY(-6px) scale(0.8); }
  12%{ opacity: 1; transform: translateY(0) scale(1); }
  60%{ opacity: 1; transform: translateY(64px) scale(0.9); }
  72%, 100%{ opacity: 0; transform: translateY(70px) scale(0.6); }
}
@keyframes coatDraw{
  0%, 8%{ stroke-dashoffset: 100; opacity: 0.3; }
  55%, 78%{ stroke-dashoffset: 0; opacity: 1; }
  92%{ opacity: 0.35; }
  100%{ stroke-dashoffset: 100; opacity: 0.3; }
}

@media (prefers-reduced-motion: reduce){
  .coat-fx__layer{
    animation: none;
    stroke-dashoffset: 0;
    opacity: 0.85;
  }
  .coat-fx__p{
    animation: none;
    opacity: 0.85;
    transform: translateY(64px) scale(0.9);
  }
}

.advantages__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 720px){
  .advantages__grid{ grid-template-columns: repeat(3, 1fr); }
}

.advantages__card{
  padding: 1.6rem;
}
.advantages__card img{
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: var(--bg-elevated-2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  margin-bottom: 1.1rem;
}
.advantages__card h3{
  font-size: var(--fs-md);
  margin-bottom: 0.4rem;
}
.advantages__card p{
  color: var(--text-muted);
  font-size: var(--fs-base);
}

/* ==========================================================================
   Techspecs
   ========================================================================== */

.techspecs__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: var(--glass-border);
}

@media (min-width: 640px){
  .techspecs__grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px){
  .techspecs__grid{ grid-template-columns: repeat(3, 1fr); }
}

.techspecs__item{
  background: var(--bg-elevated);
  padding: 1.5rem 1.6rem;
  margin: 0;
}
.techspecs__item dt{
  font-size: var(--fs-2xs);
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}
.techspecs__item dd{
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--fs-lg);
  color: var(--accent-strong);
  margin: 0;
}

/* ==========================================================================
   Reviews
   ========================================================================== */

.reviews__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 780px){
  .reviews__grid{ grid-template-columns: repeat(3, 1fr); }
}

.review{
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.review__stars{
  display: flex;
  gap: 0.2rem;
  color: var(--accent);
}
.review__stars svg{ width: 15px; height: 15px; fill: currentColor; }

.review__text{
  color: var(--text);
  font-size: var(--fs-base);
  line-height: 1.6;
}

.review__meta{
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-sm);
  color: var(--text-faint);
  padding-top: 0.4rem;
  border-top: 1px solid var(--glass-border);
}

.review__proof{
  margin-top: 0.3rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}
.review__proof img{ width: 100%; display: block; }

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}
@media (min-width: 900px){
  .faq__layout{ grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 4rem; }
  .faq__head{ position: sticky; top: 7rem; }
}

.faq__head h2{
  font-size: clamp(1.7rem, 1.2rem + 2vw, 2.5rem);
  margin-bottom: 0.9rem;
}
.faq__head p{
  color: var(--text-muted);
  font-size: var(--fs-md);
  max-width: 36ch;
}
.faq__phone{
  display: inline-flex;
  margin-top: 1.6rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--accent-strong);
  text-decoration: none;
  border-bottom: 1px solid rgba(124,240,218,0.3);
  padding-bottom: 0.15rem;
  transition: border-color 0.3s var(--ease-out);
}
.faq__phone:hover{ border-color: var(--accent-strong); }

.faq__list{
  display: grid;
  gap: 0.75rem;
}

.faq__item{
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  transition: background 0.4s var(--ease-out), border-color 0.4s var(--ease-out);
  interpolate-size: allow-keywords;
}
.faq__item[open]{
  background: var(--glass-bg-strong);
  border-color: rgba(82,224,196,0.28);
}

.faq__q{
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.2rem 1.35rem;
  cursor: pointer;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: var(--fs-md);
  line-height: 1.3;
  border-radius: var(--radius-md);
}
.faq__q::-webkit-details-marker{ display: none; }
.faq__q:hover .faq__icon{ border-color: var(--accent); }

.faq__icon{
  position: relative;
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid var(--glass-border-strong);
  transition: transform 0.5s var(--ease-spring), background 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}
.faq__icon::before,
.faq__icon::after{
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 1.5px;
  margin: -0.75px 0 0 -5.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.5s var(--ease-spring);
}
.faq__icon::after{ transform: rotate(90deg); }
.faq__item[open] .faq__icon{
  transform: rotate(180deg);
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.faq__item[open] .faq__icon::after{ transform: rotate(0deg); }

/* Плавное раскрытие там, где браузер умеет анимировать details */
.faq__item::details-content{
  block-size: 0;
  overflow: hidden;
  transition: block-size 0.5s var(--ease-spring), content-visibility 0.5s allow-discrete;
}
.faq__item[open]::details-content{ block-size: auto; }

.faq__a{ padding: 0 1.35rem 1.35rem; }
.faq__a p{
  color: var(--text-muted);
  max-width: 62ch;
}

@media (prefers-reduced-motion: reduce){
  .faq__item::details-content{ transition: none; }
}

/* ==========================================================================
   Final CTA
   ========================================================================== */

.cta-final{ padding-bottom: 7rem; }

.cta-final__card{
  max-width: var(--content-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  padding: 2.5rem;
  overflow: hidden;
}

@media (min-width: 760px){
  .cta-final__card{
    grid-template-columns: 0.8fr 1.2fr;
    padding: 3rem;
  }
}

.cta-final__can{
  width: min(220px, 100%);
  margin: 0 auto;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5));
}

.cta-final__copy h2{
  font-size: clamp(1.6rem, 1.3rem + 1.4vw, 2.1rem);
  margin-bottom: 0.7rem;
}
.cta-final__copy p{
  color: var(--text-muted);
  margin-bottom: 1.4rem;
  max-width: 42ch;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer{
  border-top: 1px solid var(--glass-border);
  padding: 2.5rem 1.5rem 3rem;
}

.footer__inner{
  max-width: var(--content-w);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer__logo{ height: 24px; width: auto; opacity: 0.9; }

.footer__links{
  display: flex;
  gap: 1.5rem;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}
.footer__links a{ text-decoration: none; transition: color 0.2s var(--ease-out); }
.footer__links a:hover{ color: var(--accent-strong); }

.footer__copy{
  width: 100%;
  color: var(--text-faint);
  font-size: var(--fs-2xs);
}

/* ==========================================================================
   Modal (marketplace picker)
   ========================================================================== */

.modal{
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-end;
}

@media (min-width: 640px){
  .modal{ align-items: center; justify-content: center; }
}

.modal[hidden]{ display: none; }

.modal__backdrop{
  position: absolute;
  inset: 0;
  background: rgba(4,8,14,0.7);
  backdrop-filter: blur(6px);
}

.modal__panel{
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 460px;
  max-height: 90vh;
  overflow-y: auto;
  margin: 0 auto;
  padding: 2rem 1.6rem 1.8rem;
  border-radius: 26px 26px 0 0;
  background: var(--bg-elevated-2);
}

@media (min-width: 640px){
  .modal__panel{ border-radius: var(--radius-lg); margin: 1rem; }
}

.modal__panel h2{ font-size: var(--fs-xl); margin-bottom: 0.4rem; }
.modal__sub{ color: var(--text-muted); font-size: var(--fs-sm); margin-bottom: 1.4rem; }

.modal__close{
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s var(--ease-out);
}
.modal__close:hover{ background: rgba(255,255,255,0.12); }

.modal__list{
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.market-link{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.03);
  text-decoration: none;
  transition: border-color 0.25s var(--ease-out), transform 0.3s var(--ease-spring), background 0.25s var(--ease-out);
}
.market-link:hover{
  border-color: var(--accent);
  background: rgba(82,224,196,0.06);
  transform: translateX(2px);
}

.market-link__name{
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: var(--fs-md);
}
.market-link__note{
  display: block;
  color: var(--text-faint);
  font-size: var(--fs-2xs);
  font-weight: 400;
  margin-top: 0.15rem;
}

.market-link__dot{
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--accent);
}

.market-link__icon{
  color: var(--text-faint);
  flex-shrink: 0;
  transition: transform 0.3s var(--ease-spring), color 0.25s var(--ease-out);
}
.market-link:hover .market-link__icon{
  transform: translate(2px, -2px);
  color: var(--accent-strong);
}

body.modal-open{ overflow: hidden; }

/* ==========================================================================
   Scroll reveal
   ========================================================================== */

[data-reveal]{
  opacity: 0;
  transform: translateY(28px);
  filter: blur(6px);
  transition:
    opacity 0.9s var(--ease-out),
    transform 0.9s var(--ease-out),
    filter 0.9s var(--ease-out);
}

[data-reveal].is-visible{
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

html.no-motion [data-reveal]{
  opacity: 1;
  transform: none;
  filter: none;
  transition: none;
}

@media (prefers-reduced-motion: reduce){
  [data-reveal]{
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }
}

/* ==========================================================================
   Отзывы и вопросы с площадок (shared/data/reviews.json)
   ========================================================================== */

[hidden]{ display: none !important; }

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

/* Сводка по площадкам */
.rsum{
  display: grid;
  gap: 1.25rem;
  padding: 1.4rem 1.6rem;
  margin-bottom: 1.25rem;
  border-radius: var(--radius-lg);
}
@media (min-width: 900px){
  .rsum{ grid-template-columns: auto 1fr; align-items: center; gap: 2.5rem; }
}
.rsum__all{ display: flex; align-items: center; gap: 1rem; }
.rsum__big{
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(2.8rem, 2rem + 2.6vw, 3.8rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--accent-strong);
}
.rsum__cnt{ margin-top: 0.35rem; font-size: var(--fs-sm); color: var(--text-muted); max-width: 28ch; }
.rsum__mps{ display: flex; flex-wrap: wrap; gap: 0.6rem; list-style: none; padding: 0; margin: 0; }
@media (min-width: 900px){ .rsum__mps{ justify-content: flex-end; } }
.rsum__mp{
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 48px;
  padding: 0.45rem 0.95rem 0.45rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border-strong);
  background: var(--glass-bg);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.3s var(--ease-out), background 0.3s var(--ease-out);
}
.rsum__mp:hover{ border-color: var(--accent); background: var(--glass-bg-strong); }
.rsum__r{ display: inline-flex; align-items: center; gap: 0.3rem; font-family: 'Space Grotesk', sans-serif; font-weight: 600; }
.rsum__r svg{ width: 14px; height: 14px; fill: var(--accent); }
.rsum__n{ font-size: var(--fs-sm); color: var(--text-faint); white-space: nowrap; }

/* Значок площадки */
.mbadge{
  display: inline-block;
  padding: 0.2rem 0.6rem 0.25rem;
  border-radius: 999px;
  background: var(--mp);
  color: #fff;
  font-size: var(--fs-2xs);
  font-weight: 600;
  line-height: 1.3;
  white-space: nowrap;
}
.mbadge--plain{ background: transparent; color: var(--text); box-shadow: inset 0 0 0 1px var(--glass-border-strong); }

/* Карточка отзыва: длинный текст, ответ продавца, скриншот */
.review__text{ display: grid; gap: 0.5rem; align-content: start; }
.review__text.is-clamped{
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 7;
  overflow: hidden;
}
.review__text.is-clamped p + p{ margin-top: 0.5rem; }
.review__lbl{
  font-size: var(--fs-2xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.review__open{
  align-self: flex-start;
  min-height: 44px;
  margin-top: -0.5rem;
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent-strong);
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 600;
  cursor: pointer;
}
.review__open:hover{ text-decoration: underline; text-underline-offset: 4px; }
.review__more summary{
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}
.review__more summary::-webkit-details-marker{ display: none; }
.review__more summary::after{
  content: "";
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.3s var(--ease-out);
}
.review__more[open] summary::after{ transform: rotate(-135deg) translateY(-2px); }
.review__more summary:hover{ color: var(--text); }
.review__reply{
  display: grid;
  gap: 0.4rem;
  padding: 0.8rem 1rem;
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(82,224,196,0.06);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  line-height: 1.55;
}
.review__meta{ gap: 0.75rem; flex-wrap: wrap; }
.review__meta > span:first-child{ color: var(--text); font-weight: 500; }
.review__src{ display: inline-flex; align-items: center; gap: 0.5rem; }

.more-row{ display: flex; justify-content: center; margin-top: 1.75rem; }
.more-row--start{ justify-content: flex-start; }

/* Вопросы с площадок */
.mpfaq{ padding-top: 0; }
.mpfaq__note{ margin-top: 1rem; font-size: var(--fs-sm); color: var(--text-faint); }
.mpfaq .faq__a{ display: grid; gap: 0.5rem; }
.mpfaq__meta{ font-size: var(--fs-sm); color: var(--text-faint); }