/* ==========================================================================
   CleanLab — Light/Dark via prefers-color-scheme (no UI toggle)
   ========================================================================== */

:root {
  /* Dark (default) — deep slate-blue */
  --color-bg: #0b1221;
  --color-bg-alt: #0f172a;
  --color-surface: #111827;
  --color-ink: #ffffff;
  --color-ink-soft: #cbd5e1;
  --color-muted: #94a3b8;
  --color-line: rgba(148, 163, 184, 0.22);
  --color-accent-soft: rgba(255, 255, 255, 0.08);
  --color-sil: #e2e8f0;
  --color-hot: #dc2626;
  --color-btn-primary-bg: #ffffff;
  --color-btn-primary-text: #0b1221;
  --color-btn-primary-hover: #e2e8f0;
  --color-header-bg: rgba(11, 18, 33, 0.92);
  --color-header-scrolled: rgba(15, 23, 42, 0.96);
  --color-nav-overlay: #0b1221;
  --color-messenger-hover-border: rgba(255, 255, 255, 0.45);
  --color-glass-bg: rgba(17, 24, 39, 0.55);
  --color-glass-border: rgba(255, 255, 255, 0.14);
  --color-glass-highlight: rgba(255, 255, 255, 0.06);
  --color-btn-glow: rgba(255, 255, 255, 0.18);

  --font-display: "Montserrat", sans-serif;
  --font-body: "Montserrat", sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 0.85rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 2.75rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --container: 74rem;
  --header-h: 4.25rem;
  --radius: 0.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.22s var(--ease);
  --theme-fade: background-color 0.3s ease, color 0.3s ease,
    border-color 0.3s ease, fill 0.3s ease;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #f8fafc;
    --color-bg-alt: #f1f5f9;
    --color-surface: #ffffff;
    --color-ink: #0f172a;
    --color-ink-soft: #1e293b;
    --color-muted: #475569;
    --color-line: rgba(15, 23, 42, 0.14);
    --color-accent-soft: rgba(15, 23, 42, 0.06);
    --color-sil: #0f172a;
    --color-hot: #b91c1c;
    --color-btn-primary-bg: #0f172a;
    --color-btn-primary-text: #ffffff;
    --color-btn-primary-hover: #1e293b;
    --color-header-bg: rgba(248, 250, 252, 0.92);
    --color-header-scrolled: rgba(241, 245, 249, 0.96);
    --color-nav-overlay: #f8fafc;
    --color-messenger-hover-border: rgba(15, 23, 42, 0.35);
    --color-glass-bg: rgba(255, 255, 255, 0.62);
    --color-glass-border: rgba(15, 23, 42, 0.12);
    --color-glass-highlight: rgba(255, 255, 255, 0.75);
    --color-btn-glow: rgba(15, 23, 42, 0.12);
    color-scheme: light;
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.7;
  color: var(--color-ink-soft);
  background: var(--color-bg);
  transition: var(--theme-fade);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

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

.sil {
  width: 100%;
  height: auto;
  color: var(--color-sil);
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}

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

/* --------------------------------------------------------------------------
   Buttons — flat
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3.5rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  transition: background-color var(--transition), color var(--transition),
    border-color var(--transition);
}

.btn--primary {
  background: var(--color-btn-primary-bg);
  color: var(--color-btn-primary-text);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-btn-primary-hover);
}

.btn--ghost {
  border: 2px solid var(--color-ink);
  background: transparent;
  color: var(--color-ink);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: var(--color-accent-soft);
}

.btn--hero {
  min-height: 4rem;
  padding: 1.05rem 2rem;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.btn--primary.btn--hero {
  box-shadow: 0 10px 28px var(--color-btn-glow);
}

.btn--ghost.btn--hero {
  border-width: 2.5px;
  background: var(--color-glass-highlight);
  backdrop-filter: blur(10px);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  background: var(--color-header-bg);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(10px);
  transition: var(--theme-fade), border-color var(--transition);
}

.header--scrolled {
  border-bottom-color: var(--color-line);
  background: var(--color-header-scrolled);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 2.5rem, var(--container));
  height: 100%;
  margin-inline: auto;
}

.header__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: var(--color-ink);
  z-index: 110;
}

.header__logo-mark {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 0.1rem;
  background: var(--color-ink);
}

.header__burger {
  position: relative;
  z-index: 110;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2.75rem;
  height: 2.75rem;
}

.header__burger-line {
  display: block;
  width: 1.4rem;
  height: 2px;
  margin-inline: auto;
  background: var(--color-ink);
  transition: transform var(--transition), opacity var(--transition);
}

.header__burger[aria-expanded="true"] .header__burger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.header__burger[aria-expanded="true"] .header__burger-line:nth-child(2) {
  opacity: 0;
}

.header__burger[aria-expanded="true"] .header__burger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.header__nav {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--color-nav-overlay);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition), visibility var(--transition);
}

.header__nav.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.header__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
}

.header__link {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.65rem;
  letter-spacing: -0.03em;
  color: var(--color-ink);
  transition: color var(--transition);
}

.header__link:hover,
.header__link:focus-visible {
  color: var(--color-ink-soft);
}

body.nav-open {
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */

.section {
  padding: 90px 0;
}

.section--alt {
  background: var(--color-bg-alt);
  transition: var(--theme-fade);
}

.section__head {
  max-width: 48rem;
  margin-bottom: var(--space-2xl);
}

.section__eyebrow {
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: var(--color-ink);
}

.section__desc {
  margin-top: var(--space-lg);
  color: var(--color-ink-soft);
  max-width: 40rem;
  font-size: clamp(1.1rem, 2.2vw, 1.25rem);
  font-weight: 500;
}

.reveal {
  /* GSAP керує появою секцій; внутрішні .reveal лишаються видимими */
  opacity: 1;
  transform: none;
}

.section-motion {
  width: 100%;
  will-change: transform, opacity;
  backface-visibility: hidden;
}

.section-motion__rubber {
  width: 100%;
  transform-origin: 50% 50%;
  will-change: transform;
  backface-visibility: hidden;
  transform: translateZ(0);
  /* padding секцій фіксований — scaleY лише на внутрішньому контенті */
}

/* --------------------------------------------------------------------------
   1. Hero — two columns + glass
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100svh;
  padding: 90px 0 110px;
  overflow: hidden;
  background: var(--color-bg);
  transition: var(--theme-fade);
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__glow {
  position: absolute;
  width: min(48vw, 28rem);
  height: min(48vw, 28rem);
  border-radius: 50%;
  filter: blur(80px);
}

.hero__glow--a {
  top: 8%;
  right: 5%;
  background: var(--color-ink);
  opacity: 0.08;
}

.hero__glow--b {
  bottom: 10%;
  left: 0;
  background: var(--color-muted);
  opacity: 0.12;
}

.hero__shell {
  position: relative;
  z-index: 1;
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero__glass {
  padding: clamp(1.5rem, 3vw, 2.75rem);
  border: 1px solid var(--color-glass-border);
  border-radius: 1rem;
  background: var(--color-glass-bg);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  box-shadow: inset 0 1px 0 var(--color-glass-highlight);
  animation: hero-in 0.7s var(--ease) both;
}

.hero__grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero__content {
  text-align: left;
  max-width: 42rem;
}

.hero__brand {
  margin-bottom: 0.4rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 7vw, 4.25rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  color: var(--color-ink);
}

.hero__location {
  margin-bottom: 1.25rem;
  font-weight: 700;
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.55rem, 4.2vw, 2.65rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--color-ink);
}

.hero__text {
  margin-top: 1.25rem;
  max-width: 34rem;
  color: var(--color-ink-soft);
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  font-weight: 500;
  line-height: 1.55;
}

.hero__jobs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.hero__job {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 2.85rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius);
  background: var(--color-glass-highlight);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  backdrop-filter: blur(8px);
}

.sil--job {
  width: 1.2rem;
  height: 1.2rem;
  flex-shrink: 0;
  color: var(--color-sil);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.hero__devices {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  align-items: end;
}

.hero__device {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  animation: device-up 0.7s var(--ease) both;
}

.hero__device:nth-child(1) { animation-delay: 0.08s; }
.hero__device:nth-child(2) { animation-delay: 0.16s; }
.hero__device:nth-child(3) { animation-delay: 0.24s; }

.hero__device-frame {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 1 / 1.05;
  max-height: 12rem;
  padding: 1rem;
  border: 1px solid var(--color-glass-border);
  border-radius: 0.85rem;
  background: var(--color-glass-highlight);
  backdrop-filter: blur(12px);
}

.sil--hero-device {
  width: 100%;
  height: auto;
  max-height: 7.5rem;
  color: var(--color-sil);
}

.hero__device:nth-child(1) .sil--hero-device {
  max-height: 5.75rem;
}

.hero__device:nth-child(2) .sil--hero-device,
.hero__device:nth-child(3) .sil--hero-device {
  max-height: 9rem;
  max-width: 5rem;
}

.hero__device-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(0.95rem, 2.4vw, 1.15rem);
  letter-spacing: -0.02em;
  color: var(--color-ink);
  text-align: center;
}

.banner_scroll {
  position: relative;
  z-index: 2;
  align-self: center;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.15rem;
  color: var(--color-muted);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.banner_scroll:hover,
.banner_scroll:focus-visible {
  color: var(--color-ink);
}

.banner_scroll__icon {
  width: 1.35rem;
  height: 1.35rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  animation: scroll-bob 1.6s var(--ease) infinite;
}

@keyframes hero-in {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes device-up {
  from {
    opacity: 0;
    transform: translateY(0.85rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scroll-bob {
  0%, 100% { transform: rotate(45deg) translate(0, 0); opacity: 0.55; }
  50% { transform: rotate(45deg) translate(3px, 3px); opacity: 1; }
}

/* --------------------------------------------------------------------------
   2. About
   -------------------------------------------------------------------------- */

.about__grid {
  display: grid;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.about__text {
  color: var(--color-ink-soft);
  font-size: clamp(1.1rem, 2.2vw, 1.25rem);
  font-weight: 500;
}

.about__text + .about__text {
  margin-top: var(--space-lg);
}

.about__aside {
  padding: var(--space-xl);
  border-left: 3px solid var(--color-ink);
  background: var(--color-surface);
}

.about__aside-label {
  margin-bottom: var(--space-md);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.about__focus {
  display: grid;
  gap: 0.9rem;
}

.about__focus-item {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.5vw, 1.55rem);
  letter-spacing: -0.03em;
  color: var(--color-ink);
}

.about__aside-note {
  margin-top: var(--space-lg);
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  font-weight: 500;
}

.infographic {
  padding: var(--space-2xl) var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
}

.infographic__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xl);
  color: var(--color-ink);
}

.infographic__steps {
  display: grid;
  gap: var(--space-xl);
}

.infographic__connector {
  display: none;
}

.infographic__step {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "icon num"
    "icon name"
    "icon text";
  column-gap: var(--space-md);
  align-content: start;
}

.infographic__icon {
  grid-area: icon;
  display: grid;
  place-items: center;
  width: 3.75rem;
  height: 3.75rem;
  color: var(--color-ink);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.sil--ico {
  width: 1.75rem;
  height: 1.75rem;
}

.infographic__num {
  grid-area: num;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.infographic__name {
  grid-area: name;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.5vw, 1.45rem);
  letter-spacing: -0.03em;
  color: var(--color-ink);
}

.infographic__text {
  grid-area: text;
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  font-weight: 500;
  margin-top: 0.35rem;
}

/* --------------------------------------------------------------------------
   3. Services
   -------------------------------------------------------------------------- */

.services__list {
  display: grid;
  gap: var(--space-2xl);
}

.services__item {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-line);
}

.services__visual {
  width: min(100%, 12rem);
  margin-bottom: var(--space-lg);
  color: var(--color-sil);
}

.services__item:nth-child(2) .services__visual,
.services__item:nth-child(3) .services__visual {
  width: min(100%, 6rem);
}

.sil--service {
  width: 100%;
  max-height: 8.5rem;
}

.services__index {
  display: block;
  margin-bottom: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

.services__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  letter-spacing: -0.04em;
  margin-bottom: var(--space-md);
  color: var(--color-ink);
}

.services__text {
  color: var(--color-ink-soft);
  max-width: 38rem;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   4. Pricing
   -------------------------------------------------------------------------- */

.pricing__list {
  display: grid;
  border-top: 1px solid var(--color-line);
}

.pricing__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-lg);
  align-items: center;
  padding-block: var(--space-xl);
  border-bottom: 1px solid var(--color-line);
  transition: background-color var(--transition);
}

.pricing__item:hover {
  background: var(--color-accent-soft);
}

.pricing__sil {
  width: 3.5rem;
  color: var(--color-sil);
}

.sil--price {
  width: 100%;
  max-height: 3.25rem;
}

.pricing__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.8vw, 1.6rem);
  letter-spacing: -0.03em;
  color: var(--color-ink);
}

.pricing__note {
  color: var(--color-muted);
  font-size: 1.05rem;
  font-weight: 500;
  margin-top: 0.25rem;
}

.pricing__price {
  grid-column: 1 / -1;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 7vw, 3.5rem);
  letter-spacing: -0.04em;
  color: var(--color-ink);
  line-height: 1;
}

/* --------------------------------------------------------------------------
   5. Benefits
   -------------------------------------------------------------------------- */

.compare {
  display: grid;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
  padding: var(--space-2xl) var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
}

.compare__col {
  display: grid;
  gap: var(--space-md);
}

.compare__label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 2.5vw, 1.45rem);
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.compare__meter {
  display: grid;
  gap: 0.4rem;
  justify-items: start;
}

.compare__gauge {
  width: 9rem;
  color: var(--color-muted);
}

.compare__col--before .compare__gauge {
  color: var(--color-hot);
}

.compare__col--after .compare__gauge {
  color: var(--color-ink-soft);
}

.compare__gauge-val {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  fill: currentColor;
}

.compare__metric {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-ink);
}

.compare__bars {
  display: flex;
  align-items: flex-end;
  gap: 0.45rem;
  height: 4.5rem;
}

.compare__bar {
  flex: 1;
  height: var(--h);
  border-radius: 2px 2px 0 0;
  transform-origin: bottom;
  animation: bar-grow 0.9s var(--ease) both;
}

.compare__bar--loud {
  background: var(--color-hot);
  opacity: 0.85;
}

.compare__bar--quiet {
  background: var(--color-ink-soft);
  opacity: 0.7;
}

.compare__caption {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-muted);
}

.compare__divider {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  margin-inline: auto;
  color: var(--color-ink);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-radius: 50%;
}

@keyframes bar-grow {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

.benefits__list {
  display: grid;
  gap: var(--space-2xl);
}

.benefits__icon {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--space-md);
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.benefits__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 2.8vw, 1.7rem);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
  color: var(--color-ink);
}

.benefits__text {
  color: var(--color-ink-soft);
  max-width: 36rem;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   6. Contacts — messengers
   -------------------------------------------------------------------------- */

.contacts__grid {
  display: grid;
  gap: var(--space-2xl);
}

.contacts__messengers {
  display: grid;
  gap: 1rem;
}

.messenger {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "icon name"
    "icon hint";
  column-gap: 1rem;
  align-items: center;
  min-height: 4.75rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-ink);
  transition: background-color var(--transition), border-color var(--transition);
}

.messenger:hover,
.messenger:focus-visible {
  background: var(--color-accent-soft);
  border-color: var(--color-messenger-hover-border);
  outline: none;
}

.messenger__icon {
  grid-area: icon;
  width: 1.9rem;
  height: 1.9rem;
  color: var(--color-ink);
}

.messenger__name {
  grid-area: name;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
  color: var(--color-ink);
}

.messenger__hint {
  grid-area: hint;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-muted);
}

.messenger--viber,
.messenger--whatsapp,
.messenger--telegram {
  color: var(--color-ink);
}

.contacts__info {
  display: grid;
  gap: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-line);
}

.contacts__label {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.contacts__devices {
  display: flex;
  align-items: flex-end;
  gap: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--color-sil);
}

.sil--contact {
  width: 3.5rem;
  max-height: 4.5rem;
  opacity: 0.9;
}

.contacts__devices .sil--contact:nth-child(1) {
  width: 5.25rem;
}

.contacts__block {
  display: grid;
  gap: 0.35rem;
}

.contacts__value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 2.5vw, 1.55rem);
  letter-spacing: -0.03em;
  color: var(--color-ink);
}

a.contacts__value:hover,
a.contacts__value:focus-visible {
  color: var(--color-ink-soft);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.footer {
  padding-block: var(--space-2xl);
  border-top: 1px solid var(--color-line);
  background: var(--color-bg-alt);
  transition: var(--theme-fade);
}

.footer__inner {
  display: grid;
  gap: var(--space-sm);
}

.footer__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
  width: fit-content;
  color: var(--color-ink);
}

.footer__tagline {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  font-weight: 500;
}

.footer__copy {
  margin-top: var(--space-sm);
  color: var(--color-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (min-width: 640px) {
  :root {
    --header-h: 4.5rem;
  }

  .pricing__item {
    grid-template-columns: auto 1fr auto;
  }

  .pricing__price {
    grid-column: auto;
  }

  .benefits__list {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl) var(--space-2xl);
  }

  .compare {
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
  }

  .compare__divider {
    margin-inline: 0;
  }
}

@media (min-width: 768px) {
  .header__burger {
    display: none;
  }

  .header__nav {
    position: static;
    display: block;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    background: none;
  }

  .header__list {
    flex-direction: row;
    gap: 1.5rem;
  }

  .header__link {
    font-size: 1rem;
    font-weight: 600;
  }

  .hero__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2.75rem;
    align-items: center;
  }

  .hero__devices {
    gap: 1rem;
  }

  .hero__device-frame {
    max-height: 14rem;
    padding: 1.25rem;
  }

  .hero__device:nth-child(1) .sil--hero-device {
    max-height: 6.5rem;
  }

  .hero__device:nth-child(2) .sil--hero-device,
  .hero__device:nth-child(3) .sil--hero-device {
    max-height: 11rem;
    max-width: 5.75rem;
  }

  .about__grid {
    grid-template-columns: 1.35fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
  }

  .infographic__steps {
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: start;
    gap: var(--space-md);
  }

  .infographic__connector {
    display: block;
    align-self: center;
    height: 1px;
    margin-top: 1.9rem;
    background: var(--color-line);
  }

  .infographic__step {
    grid-template-columns: 1fr;
    grid-template-areas:
      "icon"
      "num"
      "name"
      "text";
    justify-items: start;
    gap: 0.4rem;
  }

  .services__list {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
  }

  .services__item {
    padding-top: 0;
    border-top: none;
    border-left: 1px solid var(--color-line);
    padding-left: var(--space-xl);
  }

  .services__item:first-child {
    border-left: none;
    padding-left: 0;
  }

  .contacts__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-3xl);
    align-items: start;
  }

  .contacts__info {
    border-top: none;
    padding-top: 0;
    border-left: 1px solid var(--color-line);
    padding-left: var(--space-xl);
  }

  .footer__inner {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-lg);
  }

  .footer__copy {
    margin-top: 0;
    text-align: right;
  }
}

@media (min-width: 1024px) {
  .hero__brand {
    font-size: 4.5rem;
  }

  .hero__title {
    font-size: 2.75rem;
  }

  .section__title {
    font-size: 3.75rem;
  }

  .pricing__price {
    font-size: 3.75rem;
  }
}

/* --------------------------------------------------------------------------
   Floating Action Button — contact menu
   -------------------------------------------------------------------------- */

.fab {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right, 0px));
  bottom: max(1.15rem, env(safe-area-inset-bottom, 0px));
  z-index: 1200;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
  max-width: calc(100vw - 2rem);
  pointer-events: none;
}

.fab__toggle,
.fab__panel {
  pointer-events: auto;
}

.fab__toggle {
  position: relative;
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  min-width: 48px;
  min-height: 48px;
  border-radius: 999px;
  background: var(--color-btn-primary-bg);
  color: var(--color-btn-primary-text);
  border: 1px solid var(--color-glass-border);
  box-shadow: 0 10px 28px var(--color-btn-glow);
  transition: transform var(--transition), background-color var(--transition),
    color var(--transition);
}

.fab__toggle:hover,
.fab__toggle:focus-visible {
  transform: scale(1.05);
  outline: none;
}

.fab__toggle-icon {
  position: absolute;
  width: 1.45rem;
  height: 1.45rem;
  transition: opacity var(--transition), transform var(--transition);
}

.fab__toggle-icon--close {
  opacity: 0;
  transform: rotate(-45deg) scale(0.7);
}

.fab.is-open .fab__toggle-icon--chat {
  opacity: 0;
  transform: rotate(45deg) scale(0.7);
}

.fab.is-open .fab__toggle-icon--close {
  opacity: 1;
  transform: rotate(0) scale(1);
}

.fab__panel {
  width: min(18.5rem, calc(100vw - 2rem));
  padding: 1rem;
  border-radius: 0.85rem;
  border: 1px solid var(--color-glass-border);
  background: var(--color-glass-bg);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
  box-shadow:
    inset 0 1px 0 var(--color-glass-highlight),
    0 16px 40px rgba(0, 0, 0, 0.28);
  color: var(--color-ink);
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.75rem) scale(0.96);
  transform-origin: bottom right;
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease),
    visibility 0.28s;
  pointer-events: none;
}

.fab__panel:not([hidden]) {
  /* hidden attribute removed when open; class controls motion */
}

.fab.is-open .fab__panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.fab__title {
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.fab__list {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.fab__link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 48px;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-glass-border);
  background: var(--color-glass-highlight);
  color: var(--color-ink);
  font-weight: 700;
  font-size: 1rem;
  transition: background-color var(--transition), border-color var(--transition);
}

.fab__link:hover,
.fab__link:focus-visible {
  background: var(--color-accent-soft);
  border-color: var(--color-messenger-hover-border);
  outline: none;
}

.fab__icon {
  width: 1.35rem;
  height: 1.35rem;
  flex-shrink: 0;
  color: var(--color-ink);
}

.fab__call {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  background: var(--color-btn-primary-bg);
  color: var(--color-btn-primary-text);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  box-shadow: 0 8px 20px var(--color-btn-glow);
  transition: background-color var(--transition), transform var(--transition);
}

.fab__call:hover,
.fab__call:focus-visible {
  background: var(--color-btn-primary-hover);
  transform: translateY(-1px);
  outline: none;
}

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

  .hero__glass,
  .hero__device,
  .banner_scroll__icon,
  .compare__bar,
  .reveal,
  .section-motion,
  .section-motion__rubber,
  .fab__panel,
  .fab__toggle,
  .fab__toggle-icon {
    animation: none !important;
    transition: none !important;
  }

  .hero__glass,
  .hero__device,
  .reveal,
  .section-motion,
  .section-motion__rubber {
    opacity: 1 !important;
    transform: none !important;
  }
}