:root {
  --brown-950: #1c1612;
  --brown-900: #2a211c;
  --brown-800: #39302a;
  --brown-600: #82695e;
  --brown-400: #a89084;
  --sand-100: #f3ebe4;
  --sand-50: #faf6f2;
  --orange-500: #ec7016;
  --orange-400: #f8931d;
  --orange-300: #fbae40;
  --ink: #1c1612;
  --muted: #5c4f47;
  --line: rgba(57, 48, 42, 0.14);
  --white: #ffffff;

  --font-display: "Unbounded", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;

  --shell: min(1120px, calc(100% - 2.5rem));
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --block-gap: clamp(2.75rem, 4vw,3rem);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(248, 147, 29, 0.12), transparent 55%),
    radial-gradient(900px 500px at 100% 20%, rgba(130, 105, 94, 0.1), transparent 50%),
    linear-gradient(180deg, var(--sand-50), #f7f1eb 40%, var(--sand-50));
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

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

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

p {
  margin: 0;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--orange-500);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow--light {
  color: var(--orange-300);
}

.section {
  padding: var(--block-gap) 0;
}

.section__head {
  /* max-width: 40rem; */
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.section__title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem 1.25rem;
}

.section__title-row h2 {
  margin-bottom: 0;
  flex: 1 1 16rem;
}

.section__download {
  flex: 0 0 auto;
  white-space: nowrap;
}

.section__head h2,
.about__copy h2,
.band__copy h2,
.contacts__copy h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.55rem);
  margin-bottom: 1rem;
}

.section__lead {
  color: var(--muted);
  max-width: 36rem;
}

/* Header — чёрный бар, белый текст */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  background: #000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 4.25rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-right: auto;
  color: #fff;
}

.logo__mark {
  display: block;
  width: 1.35rem;
  height: 1.35rem;
  flex-shrink: 0;
  border: 2px solid #fff;
  background: transparent;
}

.logo__text {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.01em;
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav__cta-mobile {
  display: none !important;
}

.nav a {
  position: relative;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 100%;
  height: 1px;
  background: var(--orange-400);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav a:hover,
.nav a.is-active {
  color: #fff;
}

.nav a.is-active::after,
.nav a:hover::after {
  transform: scaleX(1);
}

.header__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.header__cta:hover {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 1.35rem;
  height: 2px;
  margin: 0.3rem auto;
  background: #fff;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: center;
  justify-items: center;
  color: var(--sand-50);
  overflow: clip;
}

.hero__media {
  position: absolute;
  inset: -12% 0 0;
  height: 124%;
  will-change: transform;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  filter: sepia(0.22) saturate(1.08) hue-rotate(-8deg) contrast(1.02);
  animation: hero-zoom 14s var(--ease) forwards;
  will-change: opacity, transform;
  image-rendering: auto;
}

.hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(28, 22, 18, 0.28) 0%, rgba(28, 22, 18, 0.52) 42%, rgba(28, 22, 18, 0.9) 100%),
    linear-gradient(105deg, rgba(57, 48, 42, 0.72), transparent 58%),
    radial-gradient(circle at 78% 18%, rgba(248, 147, 29, 0.38), transparent 42%);
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 1.4rem;
  z-index: 2;
  width: 1.4rem;
  height: 2.2rem;
  border: 1px solid rgba(250, 246, 242, 0.35);
  border-radius: 999px;
  transform: translateX(-50%);
  display: grid;
  place-items: start center;
  padding-top: 0.35rem;
}

.hero__scroll span {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--orange-300);
  animation: scroll-dot 1.6s var(--ease) infinite;
}

.hero__content {
  position: relative;
  z-index: 1;
  width: var(--shell);
  max-width: min(74rem, 100%);
  min-width: 0;
  margin-inline: auto;
  padding: 5.5rem 0 4rem;
  text-align: center;
}

.hero__brand {
  margin-bottom: 1.15rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.2vw, 2.15rem);
  font-weight: 600;
  color: var(--orange-300);
  overflow-wrap: anywhere;
}

.hero__title {
  font-size: clamp(2.25rem, 5.6vw, 4rem);
  margin-bottom: 1.75rem;
  text-wrap: balance;
  overflow-wrap: anywhere;
}

.hero__lead {
  max-width: min(42rem, 100%);
  margin: 0 auto 2rem;
  color: rgba(250, 246, 242, 0.88);
  font-size: clamp(1.08rem, 1.6vw, 1.22rem);
  line-height: 1.55;
  overflow-wrap: break-word;
}

.hero__inline-link {
  color: rgba(250, 246, 242, 0.92);
  text-decoration: none;
}

.hero__inline-link:hover .brand-eff {
  filter: brightness(1.12);
}

/* Бренд эффективность.рф — фирменный фиолетовый градиент */
.brand-eff {
  background: linear-gradient(90deg, #2f2af0 0%, #7b2ff7 45%, #c012f5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-weight: 700;
  margin-left: 5px;
  white-space: nowrap;
}

.btn--platform {
  background: rgba(255, 255, 255, 0.96);
  color: var(--brown-800);
}

.btn--platform:hover {
  background: #fff;
}

.about__note {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.25s var(--ease), background 0.25s ease, color 0.25s ease,
    border-color 0.25s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background:var(--orange-400);
    color: var(--white);
}

.btn--outline {
  border: 1px solid var(--brown-800);
  color: var(--brown-800);
  background: transparent;
}


.btn--ghost {
  border: 1px solid rgba(250, 246, 242, 0.35);
  color: var(--sand-50);
}

.btn--ghost:hover, .section__download:hover {
  border-color: var(--orange-300);
  color: var(--orange-300);
}

/* About */
.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--block-gap);
  align-items: start;
}

.about__copy {
  width: 100%;
  max-width: none;
}

.about__copy > h2 + p,
.about__copy .about__note {
  margin-top: 1rem;
  color: var(--muted);
  max-width: none;
}

.about__participate {
  width: 100%;
  min-width: 0;
}

.about__aside {
  --aside-pad-x: 1.5rem;
  padding: 1.75rem var(--aside-pad-x) 0.35rem;
  background:
    linear-gradient(160deg, rgba(236, 112, 22, 0.1), transparent 55%),
    var(--brown-800);
  color: var(--sand-50);
  overflow: clip;
}

.about__aside-label {
  font-size: 0.95rem;
  opacity: 0.75;
  color: var(--sand-50);
}

.about__aside-value {
  margin: 0.35rem 0 1.15rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--orange-300);
}

.about__terms {
  margin: 0 calc(var(--aside-pad-x) * -1);
  padding: 0;
  list-style: none;
  display: grid;
}

.about__term {
  border-top: 1px solid rgba(250, 246, 242, 0.14);
  font-size: 0.95rem;
  background: transparent;
  transition: background 0.5s var(--ease);
}

.about__term.is-open {
  background: rgba(0, 0, 0, 0.18);
}

.about__slogan {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  margin: 0;
  padding: 0.95rem var(--aside-pad-x);
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.35s ease;
}

.about__slogan:hover,
.about__term.is-open .about__slogan {
  color: var(--orange-300);
}

.about__slogan-text {
  flex: 1 1 auto;
}

.about__slogan-chevron {
  width: 0.55rem;
  height: 0.55rem;
  flex-shrink: 0;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.55s var(--ease), opacity 0.35s ease;
  opacity: 0.7;
}

.about__term.is-open .about__slogan-chevron {
  transform: rotate(225deg);
  opacity: 1;
}

.about__term-fold {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.7s var(--ease);
}

.about__term.is-open .about__term-fold {
  grid-template-rows: 1fr;
}

.about__term-fold-inner {
  overflow: hidden;
  min-height: 0;
}

.about__detail {
  margin: 0;
  padding: 0 var(--aside-pad-x) 1.05rem;
  border-top: 1px solid transparent;
  color: rgba(250, 246, 242, 0.88);
  opacity: 0;
  transform: translateY(-0.45rem);
  transition:
    opacity 0.28s ease,
    transform 0.28s ease,
    border-color 0.35s ease;
}

.about__term.is-open .about__detail {
  border-top-color: rgba(248, 147, 29, 0.28);
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.55s var(--ease) 0.15s,
    transform 0.65s var(--ease) 0.12s,
    border-color 0.45s ease 0.08s;
}

.about__detail p {
  margin: 0.85rem 0 0;
  font-size: 0.9rem;
  line-height: 1.55;
}

.about__detail ol {
  margin: 0.75rem 0 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.45rem;
  color: rgba(250, 246, 242, 0.8);
  font-size: 0.86rem;
  line-height: 1.45;
}

/* Десктоп: при открытии блок на всю ширину, заголовок «бесплатно» остаётся сверху */
@media (min-width: 901px) {
  .about__participate {
    will-change: transform;
  }

  .about__participate.is-open {
    grid-column: 1 / -1;
  }
}

.support {
  scroll-margin-top: 5rem;
}

.services__cta {
  display: flex;
  justify-content: center;
  margin-top: 1.75rem;
}

.services__cta .btn {
  min-height: 3.5rem;
  min-width: min(100%, 18rem);
  padding: 0.95rem 2.25rem;
  font-size: 1.05rem;
}

/* Схема «Возможные виды поддержки» — mobile-first, desktop = презентация */
.scheme {
  --scheme-card: rgba(57, 48, 42, 0.92);
  --scheme-card-border: rgba(250, 246, 242, 0.14);
  padding: 0;
  background: transparent;
  color: var(--sand-50);
}

.scheme__row {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.scheme__track {
  display: grid;
  gap: 0.45rem;
}

.scheme__track--choice {
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  align-items: stretch;
}

.scheme__track--choice .scheme-card {
  min-height: 7.25rem;
  height: 100%;
}

.scheme__track--choice .scheme-card > p {
  flex: 1;
  display: flex;
  align-items: center;
}

.scheme-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--scheme-card);
  border: 1px solid var(--scheme-card-border);
}

.scheme-card--entry,
.scheme-card--lead {
  width: 100%;
  justify-content: center;
  background: var(--brown-800);
  border-color: rgba(250, 246, 242, 0.16);
}

.scheme-card--entry {
  background:
    linear-gradient(145deg, rgba(236, 112, 22, 0.32), transparent 58%),
    var(--brown-800);
  border-color: rgba(248, 147, 29, 0.4);
}

.scheme-card--entry p {
  padding: 0.95rem 1rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--sand-50);
}

.scheme-card--lead p {
  padding: 0.85rem 0.95rem;
  font-size: 0.86rem;
  line-height: 1.45;
  color: rgba(250, 246, 242, 0.9);
}

.scheme-card__cap {
  display: block;
  padding: 0.4rem 0.75rem;
  background: var(--sand-50);
  color: var(--brown-950);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.scheme-card > p {
  margin: 0;
  padding: 0.7rem 0.75rem 0.85rem;
  font-size: 0.86rem;
  line-height: 1.4;
  color: rgba(250, 246, 242, 0.92);
}

/* Стрелки между lead и track — вниз на мобилке */
.scheme__row > .scheme__arrow {
  width: 1.5px;
  height: 0.75rem;
  margin: 0 auto;
  background: rgba(130, 105, 94, 0.7);
  position: relative;
}

.scheme__row > .scheme__arrow::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -1px;
  width: 0.4rem;
  height: 0.4rem;
  border-top: 1.5px solid rgba(130, 105, 94, 0.7);
  border-right: 1.5px solid rgba(130, 105, 94, 0.7);
  transform: translateX(-50%) rotate(135deg);
}

/* Стрелки внутри track — скрыты на мобилке, шаги идут списком */
.scheme__track > .scheme__arrow {
  display: none;
}

.scheme__fork {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.85rem 0;
}

.scheme__spine {
  display: block;
  width: 1.5px;
  height: 0.55rem;
  background: rgba(57, 48, 42, 0.28);
}

.scheme__or-node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid rgba(236, 112, 22, 0.45);
  background: rgba(236, 112, 22, 0.1);
  color: var(--orange-500);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
}

.scheme__or-node--inline {
  display: none;
}

.scheme__track:not(.scheme__track--choice) .scheme-card {
  border-left: 2px solid rgba(236, 112, 22, 0.45);
}

@media (min-width: 1100px) {
  .scheme {
    overflow-x: auto;
  }

  .scheme__row {
    display: grid;
    grid-template-columns: minmax(12rem, 15rem) auto minmax(0, 1fr);
    gap: 0.55rem 0.65rem;
    align-items: stretch;
    min-width: 58rem;
  }

  .scheme__track {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    gap: 0.45rem;
  }

  .scheme__track--choice {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    align-items: stretch;
    gap: 0.45rem;
  }

  .scheme__track--choice .scheme-card {
    width: 100%;
    min-height: 8rem;
  }

  .scheme__track > .scheme__arrow {
    display: block;
    flex: 0 0 auto;
    align-self: center;
    width: 1.1rem;
    height: 1.5px;
    margin: 0;
    background: rgba(130, 105, 94, 0.75);
    position: relative;
  }

  .scheme__track > .scheme__arrow::after {
    content: "";
    position: absolute;
    right: -1px;
    top: 50%;
    bottom: auto;
    left: auto;
    width: 0.45rem;
    height: 0.45rem;
    border-top: 1.5px solid rgba(130, 105, 94, 0.75);
    border-right: 1.5px solid rgba(130, 105, 94, 0.75);
    transform: translateY(-50%) rotate(45deg);
  }

  .scheme__row > .scheme__arrow {
    width: 1.1rem;
    height: 1.5px;
    margin: 0;
    align-self: center;
  }

  .scheme__row > .scheme__arrow::after {
    right: -1px;
    top: 50%;
    bottom: auto;
    left: auto;
    transform: translateY(-50%) rotate(45deg);
  }

  .scheme-card {
    flex: 1 1 0;
  }

  .scheme-card--entry,
  .scheme-card--lead {
    flex: none;
  }

  .scheme-card__cap,
  .scheme-card > p {
    text-align: center;
  }

  .scheme-card--entry p,
  .scheme-card--lead p {
    text-align: left;
  }

  .scheme__track--choice .scheme-card > p {
    justify-content: center;
    text-align: center;
  }

  .scheme__fork {
    width: 15rem;
    padding: 0.2rem 0;
  }

  .scheme__or-node--inline {
    display: inline-flex;
    align-self: center;
  }

  .scheme__track:not(.scheme__track--choice) .scheme-card {
    border-left: 1px solid var(--scheme-card-border);
  }
}

/* Band */
.band {
  padding-top: 0;
}

.band__inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  min-height: 20rem;
  overflow: clip;
  background: var(--brown-900);
  color: var(--sand-50);
}

.band__media {
  overflow: hidden;
  min-height: 16rem;
}

.band__media img {
  width: 100%;
  height: 100%;
  min-height: 16rem;
  object-fit: cover;
  transform: scale(1.12);
  filter: saturate(0.85) contrast(1.05);
  will-change: transform;
}

.band__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background:
    linear-gradient(160deg, rgba(236, 112, 22, 0.18), transparent 50%),
    var(--brown-900);
}

.band__copy p {
  color: rgba(250, 246, 242, 0.78);
  margin-bottom: 1.5rem;
}

.text-link {
  color: var(--orange-300);
  font-weight: 600;
  width: fit-content;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.text-link:hover {
  border-bottom-color: var(--orange-300);
}

/* Cases — внутри .shell, с боковыми отступами страницы */
.cases__viewport {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  padding-bottom: 0.35rem;
  container-type: inline-size;
  container-name: cases;
}

.cases__viewport::-webkit-scrollbar {
  display: none;
}

.cases__track {
  display: flex;
  gap: 1rem;
  width: max-content;
}

.case {
  --cases-gap: 1rem;
  --cases-visible: 2;
  scroll-snap-align: start;
  flex: 0 0 auto;
  width: calc(
    (100cqi - (var(--cases-visible) - 1) * var(--cases-gap)) / var(--cases-visible)
  );
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

@media (hover: hover) {
  .case:hover {
    border-color: rgba(236, 112, 22, 0.35);
    box-shadow: 0 12px 28px rgba(57, 48, 42, 0.08);
  }

  .case:hover .case__photo img {
    transform: scale(1.06);
  }
}

.case__photo {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--brown-800);
}

.case__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.case__body {
  padding: 1.1rem 1.15rem 1.25rem;
  border-top: 3px solid var(--orange-400);
}

.case__metric {
  margin-bottom: 0.85rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.case__metric span {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--orange-500);
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
}

.case h3 {
  font-size: 1.02rem;
  margin-bottom: 0.4rem;
}

.case__type {
  margin-bottom: 0.85rem;
  color: var(--brown-600);
  font-size: 0.86rem;
}

.case ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.case__num {
  color: var(--orange-500);
  font-weight: 700;
}

.cases__controls {
  display: flex;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.cases__btn {
  display: inline-grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
  color: var(--brown-800);
  cursor: pointer;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease,
    opacity 0.2s ease;
}

.cases__btn svg {
  display: block;
  pointer-events: none;
}

@media (hover: hover) {
  .cases__btn:hover:not(:disabled) {
    background: var(--brown-800);
    border-color: var(--brown-800);
    color: var(--sand-50);
  }
}

.cases__btn:active:not(:disabled) {
  background: var(--brown-800);
  border-color: var(--brown-800);
  color: var(--sand-50);
}

.cases__btn:disabled {
  opacity: 0.35;
  cursor: default;
}

/* Contacts */
.contacts {
  scroll-margin-top: 5rem;
}

.contacts__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.25rem, 2.5vw, 2rem);
}

.contacts__links {
  display: grid;
  gap: 0.45rem;
  margin-top: 1.15rem;
}

.contacts__links a {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.8vw, 1.85rem);
  font-weight: 600;
  color: var(--brown-800);
  width: fit-content;
  transition: color 0.2s ease;
}

.contacts__links a:hover {
  color: var(--orange-500);
}

.contacts__org {
  margin-bottom: 1.25rem;
  font-weight: 700;
}

.contacts__details dl {
  margin: 0;
  display: grid;
  gap: 1rem;
}

.contacts__details dl > div {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 0.75rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}

.contacts__details dt {
  color: var(--brown-600);
  font-size: 0.88rem;
}

.contacts__details dd {
  margin: 0;
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 1.8rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer__inner a:hover {
  color: var(--orange-500);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.hero .reveal:nth-child(1) {
  transition-delay: 0.05s;
}
.hero .reveal:nth-child(2) {
  transition-delay: 0.15s;
}
.hero .reveal:nth-child(3) {
  transition-delay: 0.25s;
}
.hero .reveal:nth-child(4) {
  transition-delay: 0.35s;
}

@keyframes hero-zoom {
  from {
    transform: scale(1.12);
  }
  to {
    transform: scale(1.05);
  }
}

@keyframes scroll-dot {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  70% {
    transform: translateY(12px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 0;
  }
}

@media (max-width: 900px) {
  .about__grid,
  .band__inner,
  .contacts__grid {
    grid-template-columns: 1fr;
  }

  .header__cta {
    display: none;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 0 1.25rem;
    background: #000;
    border-bottom: 1px solid transparent;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-0.4rem);
    transition:
      max-height 0.4s var(--ease),
      opacity 0.3s ease,
      padding 0.35s var(--ease),
      transform 0.35s var(--ease),
      visibility 0s linear 0.35s,
      border-color 0.3s ease;
  }

  .site-header.is-open .nav {
    max-height: 22rem;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    padding: 0.35rem 1.25rem 1rem;
    border-bottom-color: rgba(255, 255, 255, 0.1);
    transform: translateY(0);
    transition:
      max-height 0.45s var(--ease),
      opacity 0.3s ease,
      padding 0.35s var(--ease),
      transform 0.35s var(--ease),
      visibility 0s linear 0s,
      border-color 0.3s ease;
  }

  .nav a {
    margin: 0;
    padding: 0;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    border-bottom: 1px solid transparent;
    color: rgba(255, 255, 255, 0.88);
    transition:
      max-height 0.35s var(--ease),
      opacity 0.25s ease,
      margin 0.35s var(--ease),
      padding 0.35s var(--ease),
      color 0.2s ease;
  }

  .nav a::after {
    bottom: 0;
  }

  .site-header.is-open .nav a {
    margin: 0.5rem 0;
    padding: 0.15rem 0 0.35rem;
    max-height: 3rem;
    opacity: 1;
    border-bottom-color: rgba(255, 255, 255, 0.1);
  }

  .site-header.is-open .nav a.is-active {
    color: #fff;
  }

  .site-header.is-open .nav a.is-active::after {
    transform: scaleX(1);
  }

  .site-header.is-open .nav__cta-mobile {
    display: flex !important;
    margin-top: 0.2rem;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.35) !important;
    padding: 0.75rem 1rem !important;
    max-height: 3.5rem;
  }

  .band__media,
  .band__media img {
    min-height: 14rem;
  }

  .case,
  .cases__viewport .case {
    --cases-visible: 1;
  }

  .contacts__details dl > div {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

}

@media (max-width: 600px) {
  :root {
    --shell: min(100% - 2rem, 1120px);
  }

  .section__download {
    width: 100%;
    justify-content: center;
  }

  .services__cta .btn {
    width: 100%;
    min-width: 0;
  }

  .logo__text {
    font-size: 0.82rem;
    max-width: 11rem;
    line-height: 1.2;
  }

  .hero {
    align-items: center;
  }

  .hero__content {
    padding: 5.5rem 0 3.5rem;
  }

  .hero__brand {
    font-size: clamp(1.05rem, 4.6vw, 1.3rem);
  }

  .hero__title {
    font-size: clamp(1.35rem, 6.2vw, 1.75rem);
    line-height: 1.2;
  }

  .hero__lead {
    font-size: 0.95rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    max-width: 100%;
    white-space: normal;
    text-align: center;
    line-height: 1.35;
  }

  .brand-eff {
    white-space: normal;
    margin-left: 0.2em;
  }

  .hero__scroll {
    display: none;
  }

  .about__aside {
    --aside-pad-x: 1.15rem;
    padding: 1.35rem var(--aside-pad-x) 0.25rem;
  }

  .about__slogan {
    padding-block: 1rem;
  }

  .section__head h2,
  .about__copy h2,
  .band__copy h2,
  .contacts__copy h2 {
    font-size: clamp(1.45rem, 7vw, 1.9rem);
  }

  .contacts__links a {
    font-size: 1.2rem;
    word-break: break-word;
  }

  .footer__inner {
    flex-direction: column;
  }
}

@media (max-width: 400px) {
  :root {
    --shell: min(100% - 1.75rem, 1120px);
  }

  .hero__brand {
    font-size: 1rem;
  }

  .hero__title {
    font-size: 1.28rem;
  }

  .hero__lead {
    font-size: 0.9rem;
  }
}

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

  .reveal,
  .hero__media img,
  .hero__scroll span,
  .band__media img,
  .case,
  .case__photo img {
    opacity: 1;
    transform: none !important;
    animation: none !important;
    transition: none !important;
  }

  .grain {
    display: none;
  }
}