/* Блок «Как работает видеоспиннер 360» — страницы услуг (body.page--service) */
body.page--service .usecase {
  --usecase-text: #f4f8ff;
  --usecase-muted: #a8bbd9;
  --usecase-border: rgba(154, 196, 255, 0.14);
  --usecase-shadow: 0 22px 60px rgba(0, 0, 0, 0.42);
  --usecase-radius-xl: 28px;
  --usecase-container: 1240px;
  position: relative;
  isolation: isolate;
  padding: 108px 24px;
  overflow: clip;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--usecase-text);
}

body.page--service .usecase * {
  box-sizing: border-box;
}

body.page--service .usecase::before {
  content: "";
  position: absolute;
  inset: -16% -8% auto;
  height: 420px;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(30% 34% at 18% 34%, rgba(31, 120, 255, 0.18), transparent 72%),
    radial-gradient(26% 26% at 84% 26%, rgba(85, 181, 255, 0.14), transparent 74%),
    radial-gradient(22% 24% at 55% 12%, rgba(99, 133, 255, 0.1), transparent 72%);
  filter: blur(54px);
  opacity: 0.85;
  animation: usecase-section-glow 18s ease-in-out infinite alternate;
}

body.page--service .usecase__container {
  position: relative;
  z-index: 1;
  width: min(100%, var(--usecase-container));
  margin: 0 auto;
}

body.page--service .usecase__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
  margin-bottom: 34px;
}

body.page--service .usecase__eyebrow {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid rgba(154, 196, 255, 0.18);
  background: linear-gradient(135deg, rgba(10, 18, 34, 0.82), rgba(10, 18, 34, 0.46));
  color: #e7f2ff;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(14px);
  box-shadow: 0 10px 30px rgba(19, 72, 170, 0.16);
  overflow: hidden;
  isolation: isolate;
}

body.page--service .usecase__eyebrow::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(96, 192, 255, 0.22) 20%,
    rgba(31, 120, 255, 0.4) 50%,
    rgba(96, 192, 255, 0.22) 80%,
    transparent 100%
  );
  transform: translateX(-72%);
  animation: usecase-eyebrow-sweep 3.8s ease-in-out infinite;
  z-index: 0;
  pointer-events: none;
}

body.page--service .usecase__eyebrow::after {
  content: "";
  position: absolute;
  inset: auto 14px 0 14px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(122, 194, 255, 0.45), transparent);
  opacity: 0.85;
  z-index: 0;
  pointer-events: none;
}

body.page--service .usecase__eyebrow-dot,
body.page--service .usecase__eyebrow-text {
  position: relative;
  z-index: 1;
}

body.page--service .usecase__eyebrow-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(180deg, #72c8ff, #277bff);
  box-shadow: 0 0 0 6px rgba(50, 128, 255, 0.08), 0 0 18px rgba(82, 170, 255, 0.95);
  animation: usecase-pulse-dot 1.9s ease-in-out infinite;
}

body.page--service .usecase__title {
  margin: 0;
  font-size: clamp(40px, 4.6vw, 72px);
  line-height: 0.96;
  letter-spacing: -0.05em;
  font-weight: 900;
  text-transform: uppercase;
  max-width: 15ch;
  text-wrap: balance;
}

body.page--service .usecase__title-accent {
  color: #79caff;
  text-shadow: 0 0 22px rgba(98, 194, 255, 0.18);
}

body.page--service .usecase__subtitle {
  margin: 0;
  max-width: 720px;
  color: var(--usecase-muted);
  font-size: 16px;
  line-height: 1.6;
}

body.page--service .usecase__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: 24px;
  align-items: stretch;
}

body.page--service .usecase__card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 560px;
  padding: 34px 32px 30px;
  border-radius: var(--usecase-radius-xl);
  background: linear-gradient(180deg, rgba(13, 18, 29, 0.92), rgba(9, 13, 22, 0.72));
  border: 1px solid var(--usecase-border);
  box-shadow: var(--usecase-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

body.page--service .usecase__card::before {
  content: "";
  position: absolute;
  inset: auto -10% -24% auto;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 120, 255, 0.14) 0%, rgba(31, 120, 255, 0.04) 42%, transparent 72%);
  filter: blur(18px);
  pointer-events: none;
}

body.page--service .usecase__card-top,
body.page--service .usecase__chips {
  position: relative;
  z-index: 1;
}

body.page--service .usecase__kicker {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(8, 15, 27, 0.58);
  border: 1px solid rgba(154, 196, 255, 0.12);
  color: #d7eaff;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 18px;
  backdrop-filter: blur(10px);
}

body.page--service .usecase__card-title {
  margin: 0;
  font-size: clamp(34px, 3.2vw, 52px);
  line-height: 0.96;
  letter-spacing: -0.05em;
  font-weight: 900;
  text-transform: uppercase;
  max-width: 9ch;
}

body.page--service .usecase__desc {
  margin: 18px 0 0;
  color: #c5d5ec;
  font-size: 18px;
  line-height: 1.7;
  max-width: 480px;
}

body.page--service .usecase__list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

body.page--service .usecase__list-item {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 12px;
  align-items: start;
  color: #e2edff;
  font-size: 15px;
  line-height: 1.5;
}

body.page--service .usecase__list-item::before {
  content: "";
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 50%;
  background: linear-gradient(180deg, #72c8ff, #277bff);
  box-shadow: 0 0 12px rgba(82, 170, 255, 0.9);
}

body.page--service .usecase__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
  padding: 0;
  list-style: none;
}

body.page--service .usecase__chip {
  padding: 11px 14px;
  border-radius: 999px;
  background: rgba(8, 13, 23, 0.48);
  border: 1px solid rgba(154, 196, 255, 0.12);
  color: #d6e7ff;
  font-size: 13px;
  line-height: 1;
  backdrop-filter: blur(12px);
}

body.page--service .usecase__media {
  position: relative;
  min-height: 560px;
  border-radius: var(--usecase-radius-xl);
  overflow: hidden;
  background: rgba(10, 14, 24, 0.52);
  border: 1px solid var(--usecase-border);
  box-shadow: var(--usecase-shadow);
}

body.page--service .usecase__flow {
  position: absolute;
  left: 22px;
  top: 22px;
  right: 22px;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 18px;
  background: rgba(8, 13, 23, 0.42);
  border: 1px solid rgba(154, 196, 255, 0.12);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.24);
}

body.page--service .usecase__flow-step {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(13, 20, 34, 0.52);
  border: 1px solid rgba(154, 196, 255, 0.08);
  color: rgba(220, 236, 255, 0.68);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  opacity: 0.58;
  cursor: default;
  outline: none;
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    border-color 0.25s ease,
    background 0.25s ease,
    box-shadow 0.25s ease,
    color 0.25s ease;
  flex: none;
}

body.page--service .usecase__flow-step.is-active,
body.page--service .usecase__flow-step:hover,
body.page--service .usecase__flow-step:focus-visible {
  opacity: 1;
  transform: translateY(-1px);
  border-color: rgba(154, 196, 255, 0.28);
  background: linear-gradient(135deg, rgba(22, 48, 88, 0.96), rgba(25, 98, 188, 0.78));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.04) inset, 0 0 26px rgba(55, 144, 255, 0.22);
  color: #ffffff;
}

body.page--service .usecase__flow-icon {
  width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(114, 200, 255, 0.16), rgba(39, 123, 255, 0.18));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  font-size: 12px;
  flex: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

body.page--service .usecase__flow-step.is-active .usecase__flow-icon,
body.page--service .usecase__flow-step:hover .usecase__flow-icon,
body.page--service .usecase__flow-step:focus-visible .usecase__flow-icon {
  transform: scale(1.08);
  background: linear-gradient(180deg, rgba(114, 200, 255, 0.34), rgba(39, 123, 255, 0.42));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 18px rgba(82, 170, 255, 0.28);
}

body.page--service .usecase__flow-tooltip {
  position: absolute;
  left: 0;
  top: calc(100% + 10px);
  width: 220px;
  max-width: min(260px, calc(100vw - 56px));
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(7, 12, 22, 0.92);
  border: 1px solid rgba(154, 196, 255, 0.16);
  color: #d9eaff;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.45;
  white-space: normal;
  text-wrap: balance;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  pointer-events: none;
  z-index: 5;
}

body.page--service .usecase__flow-step.is-hovered .usecase__flow-tooltip,
body.page--service .usecase__flow-step:hover .usecase__flow-tooltip,
body.page--service .usecase__flow-step:focus-visible .usecase__flow-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

body.page--service .usecase__flow-arrow {
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(114, 200, 255, 0.08), rgba(114, 200, 255, 0.22));
  position: relative;
  overflow: hidden;
  opacity: 0.38;
  flex: none;
  transition: opacity 0.2s ease;
}

body.page--service .usecase__flow-arrow.is-active {
  opacity: 0.95;
}

body.page--service .usecase__flow-arrow::after {
  content: "";
  position: absolute;
  inset: -1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.92), rgba(114, 200, 255, 0.95), transparent);
  transform: translateX(-140%);
  opacity: 0;
}

body.page--service .usecase__flow-arrow.is-active::after {
  animation: usecase-flow-arrow-sweep 0.8s linear forwards;
  opacity: 1;
}

body.page--service .usecase__slider {
  position: absolute;
  inset: 0;
  z-index: 1;
}

body.page--service .usecase__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.03);
  transition: opacity 0.45s ease, transform 0.6s ease;
}

body.page--service .usecase__slide.is-active {
  opacity: 1;
  transform: scale(1);
}

body.page--service .usecase__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

body.page--service .usecase__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(180deg, rgba(5, 9, 17, 0.02) 0%, rgba(5, 9, 17, 0.12) 42%, rgba(5, 9, 17, 0.28) 100%),
    linear-gradient(135deg, rgba(72, 176, 255, 0.08), transparent 46%);
  pointer-events: none;
}

body.page--service .usecase__controls {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  pointer-events: none;
}

body.page--service .usecase__arrow {
  pointer-events: auto;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(9, 14, 24, 0.55);
  color: #fff;
  font-size: 26px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(12px);
  cursor: pointer;
  transition: transform 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
}

body.page--service .usecase__arrow:hover {
  transform: translateY(-2px) scale(1.03);
  background: rgba(14, 23, 40, 0.75);
  border-color: rgba(170, 210, 255, 0.28);
}

body.page--service .usecase__dots {
  position: absolute;
  left: 50%;
  bottom: 18px;
  z-index: 3;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(8, 13, 23, 0.36);
  border: 1px solid rgba(154, 196, 255, 0.12);
  backdrop-filter: blur(12px);
}

body.page--service .usecase__dot {
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  padding: 0;
  border: none;
  font: inherit;
  cursor: pointer;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(214, 231, 255, 0.34);
  transition: transform 0.25s ease, background-color 0.25s ease;
}

body.page--service .usecase__dot.is-active {
  background: linear-gradient(180deg, #72c8ff, #277bff);
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(82, 170, 255, 0.9);
}

@keyframes usecase-section-glow {
  0% {
    transform: translate3d(-1.4%, 0, 0) scale(0.98);
  }
  100% {
    transform: translate3d(1.8%, -2%, 0) scale(1.04);
  }
}

@keyframes usecase-pulse-dot {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.16);
    opacity: 0.82;
  }
}

@keyframes usecase-eyebrow-sweep {
  0% {
    transform: translateX(-72%);
    opacity: 0;
  }
  18% {
    opacity: 1;
  }
  50% {
    transform: translateX(0%);
    opacity: 0.9;
  }
  82% {
    opacity: 1;
  }
  100% {
    transform: translateX(72%);
    opacity: 0;
  }
}

@keyframes usecase-flow-arrow-sweep {
  0% {
    transform: translateX(-140%);
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  100% {
    transform: translateX(140%);
    opacity: 1;
  }
}

@media (max-width: 1120px) {
  body.page--service .usecase__layout {
    grid-template-columns: 1fr;
  }
  body.page--service .usecase__card,
  body.page--service .usecase__media {
    min-height: 500px;
  }
}

@media (max-width: 760px) {
  body.page--service .usecase {
    padding: 88px 18px;
  }
  body.page--service .usecase__card,
  body.page--service .usecase__media {
    min-height: 420px;
  }
  body.page--service .usecase__card {
    padding: 24px 20px 22px;
  }
  body.page--service .usecase__card-title {
    font-size: clamp(30px, 10vw, 42px);
  }
  body.page--service .usecase__desc {
    font-size: 16px;
  }
  body.page--service .usecase__arrow {
    width: 46px;
    height: 46px;
    font-size: 22px;
  }
  body.page--service .usecase__controls {
    padding: 0 12px;
  }
  body.page--service .usecase__flow {
    left: 12px;
    right: 12px;
    top: 12px;
    gap: 6px;
    padding: 8px;
    justify-content: space-between;
  }
  body.page--service .usecase__flow-step {
    min-height: 34px;
    padding: 0 10px;
    font-size: 11px;
  }
  body.page--service .usecase__flow-icon {
    width: 18px;
    height: 18px;
    font-size: 10px;
  }
  body.page--service .usecase__flow-arrow {
    width: 14px;
  }
  body.page--service .usecase__flow-tooltip {
    width: 170px;
    max-width: min(200px, calc(100vw - 40px));
    padding: 10px 12px;
    font-size: 11px;
    line-height: 1.4;
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.page--service .usecase,
  body.page--service .usecase * {
    animation: none !important;
  }
  body.page--service .usecase .usecase__slide,
  body.page--service .usecase .usecase__flow-step,
  body.page--service .usecase .usecase__arrow,
  body.page--service .usecase .usecase__dot {
    transition: none !important;
  }
}