:root {
  --bg: #0b0d10;
  --bg-soft: #10141a;
  --card: #121821;
  --card2: #0f141b;
  --border: rgba(255, 255, 255, 0.10);
  --text: #f2f5f7;
  --muted: #aab3bf;
  --accent: #f7c600;
  --accent2: #ffd84a;
  --glow: rgba(247, 198, 0, 0.35);

  --radius: 16px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background:
    radial-gradient(740px 420px at 8% -10%, rgba(247, 198, 0, 0.10) 0%, transparent 60%),
    radial-gradient(820px 460px at 95% 0%, rgba(232, 240, 255, 0.08) 0%, transparent 64%),
    linear-gradient(160deg, #090b0f 0%, var(--bg) 52%, #10151c 100%);
}

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

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.nav__link:focus-visible {
  outline: 2px solid var(--accent2);
  outline-offset: 2px;
}

.container {
  width: min(100%, 1200px);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(7, 10, 15, 0.7);
  backdrop-filter: blur(10px);
}

header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(
    to right,
    transparent 0%,
    rgba(247,198,0,0.25) 15%,
    var(--accent) 50%,
    rgba(247,198,0,0.25) 85%,
    transparent 100%
  );
  opacity: 0.9;
  transform-origin: center;
  animation: headerPulse 6.5s ease-in-out infinite;
}

@keyframes headerPulse {
  0%, 100% { filter: brightness(1); opacity: 0.75; }
  50% { filter: brightness(1.2); opacity: 0.95; }
}

.header__inner {
  min-height: 82px;
  padding: 14px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
}

.header-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  line-height: 1.1;
}

.header-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--text);
}

.header-title__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: var(--accent);
  filter: drop-shadow(0 0 8px var(--glow));
  animation: boltBlink 9s ease-in-out infinite;
}

.header-title__icon .bolt {
  width: 18px;
  height: 18px;
  display: block;
}

@keyframes boltBlink {
  0%, 84%, 100% { opacity: 0.95; transform: translateY(0); }
  85% { opacity: 0.65; transform: translateY(-0.5px); }
  86% { opacity: 1; transform: translateY(0); }
  88% { opacity: 0.75; }
  90% { opacity: 0.98; }
}

.header-slogan {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 2px;
}

.header-slogan strong {
  color: var(--accent);
  text-shadow: 0 0 8px var(--glow);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.nav__link {
  padding: 0.45rem 0.8rem;
  border-radius: 10px;
  color: var(--muted);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav__link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-image: none;
  background: var(--bg);
}

.hero > * {
  position: relative;
  z-index: 1;
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  align-items: stretch;
  justify-items: center;
}

.hero__storm {
  position: absolute;
  inset: -20%;
  pointer-events: none;
  z-index: 1;
}

.hero__storm::before,
.hero__storm::after {
  content: "";
  position: absolute;
  opacity: 0;
  mix-blend-mode: screen;
}

.hero__storm::before {
  inset: 0;
  background:
    radial-gradient(44% 34% at 66% 20%, rgba(220, 235, 255, 0.18) 0%, rgba(220, 235, 255, 0) 70%),
    radial-gradient(36% 30% at 58% 32%, rgba(247, 198, 0, 0.1) 0%, rgba(247, 198, 0, 0) 72%);
  filter: blur(12px);
  animation: storm-flash 10.6s ease-in-out infinite;
}

.hero__storm::after {
  top: 8%;
  left: 64%;
  width: 18px;
  height: 72%;
  background:
    linear-gradient(170deg, rgba(235, 245, 255, 0) 0%, rgba(247, 242, 210, 0.88) 24%, rgba(255, 216, 74, 0.82) 60%, rgba(255, 255, 255, 0) 100%);
  clip-path: polygon(42% 0%, 58% 0%, 48% 18%, 64% 18%, 36% 46%, 54% 46%, 34% 74%, 48% 74%, 28% 100%, 14% 100%, 30% 72%, 18% 72%, 36% 45%, 20% 45%, 44% 18%, 32% 18%);
  filter: blur(0.7px);
  transform: rotate(7deg);
  transform-origin: top center;
  animation: storm-bolt 9.4s ease-in-out infinite;
}

@keyframes storm-flash {
  0%,
  70%,
  100% {
    opacity: 0;
  }

  72% {
    opacity: 0.08;
  }

  73.8% {
    opacity: 0;
  }

  75.2% {
    opacity: 0.11;
  }

  77% {
    opacity: 0;
  }
}

@keyframes storm-bolt {
  0%,
  71%,
  100% {
    opacity: 0;
  }

  72.1% {
    opacity: 0.2;
  }

  74% {
    opacity: 0;
  }

  75.4% {
    opacity: 0.22;
  }

  77.3% {
    opacity: 0;
  }
}

.hero__content,
.hero__media {
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 2px);
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.38), inset 0 0 0 1px rgba(247, 198, 0, 0.10);
}

.hero__content {
  width: min(100%, 720px);
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: clamp(28px, 4vw, 36px);
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  backdrop-filter: blur(8px);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.34);
}

.hero__logo {
  display: block;
  width: clamp(140px, 20vw, 170px);
  height: auto;
  margin: 0 auto clamp(16px, 2.5vw, 20px);
  border-radius: 0;
  border: none;
  background: transparent;
  padding: 0;
}

.hero__title {
  margin: 0;
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
  text-shadow: 0 0 14px rgba(247, 198, 0, 0.16);
  position: relative;
  display: inline-block;
}

.hero__title::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: -0.3rem;
  width: clamp(56px, 10vw, 84px);
  height: 3px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.hero__slogan {
  margin-top: 12px;
  margin-bottom: 18px;
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  opacity: 0.9;
}

.hero__slogan span {
  color: var(--accent);
  text-shadow: 0 0 12px var(--glow);
}

.hero__subtitle {
  margin: 0.95rem auto 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.35vw, 1.15rem);
  line-height: 1.6;
  max-width: 56ch;
}

.hero__meta {
  margin: 1.2rem 0 0;
  padding-left: 1rem;
  color: var(--muted);
}

.hero__meta li + li {
  margin-top: 0.32rem;
}

.hero__actions {
  margin-top: 1.35rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
}

.hero__actions .btn {
  min-height: 52px;
  padding: 14px 18px;
}

.hero__image-block {
  margin-top: 40px;
  display: flex;
  justify-content: center;
}

.hero__image {
  width: 100%;
  max-width: 1000px;
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  height: auto;
  display: block;
}

.hero__media {
  display: none;
}

.hero__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.gallery__img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.card__img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  border: none;
  box-shadow: none;
}

.section {
  padding: clamp(4rem, 7vw, 5rem) 0;
}

.section__title {
  margin: 0;
  font-size: clamp(1.55rem, 3.8vw, 2.2rem);
  line-height: 1.2;
  color: var(--text);
  position: relative;
  display: inline-block;
}

.section__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.28rem;
  width: clamp(48px, 10vw, 72px);
  height: 2px;
  border-radius: 99px;
  background: linear-gradient(90deg, rgba(247, 198, 0, 0.9), transparent);
}

.section__lead {
  margin: 0.75rem 0 0;
  color: var(--muted);
  max-width: 68ch;
  font-size: clamp(1.03rem, 1.35vw, 1.12rem);
  line-height: 1.72;
}

.section--highlight .container {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding-top: clamp(1.1rem, 2.2vw, 1.6rem);
  padding-bottom: clamp(1.1rem, 2.2vw, 1.6rem);
  background: linear-gradient(160deg, rgba(18, 24, 33, 0.94), rgba(13, 18, 25, 0.94));
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
}

.about__text {
  margin: 0.75rem 0 0;
  color: var(--muted);
  max-width: 70ch;
}

.about__list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.about__list li {
  position: relative;
  padding: 0.65rem 0.75rem 0.65rem 0.95rem;
  border-left: 2px solid rgba(247, 198, 0, 0.8);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
  transition: background-color 0.18s ease, border-color 0.18s ease;
}

.about__list li::before {
  content: none;
}

.about__list li:hover {
  background: rgba(247, 198, 0, 0.10);
  border-left-color: var(--accent2);
}

.grid {
  margin-top: 1.35rem;
  display: grid;
  gap: 1rem;
}

.grid--cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--features {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid--schedule {
  gap: 16px;
  grid-template-columns: 1fr;
}

.grid--gallery {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.feature,
.schedule-card,
.gallery-item,
.faq__item,
.cta {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card), var(--card2));
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.3);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.card:hover,
.feature:hover,
.gallery-item:hover,
.faq__item:hover {
  transform: translateY(-3px);
  border-color: rgba(247, 198, 0, 0.52);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.38), 0 0 0 1px rgba(247, 198, 0, 0.20);
}

.card,
.feature,
.schedule-card,
.faq__item,
.gallery-item {
  padding: 1rem;
}

.card__media {
  margin-bottom: 0.85rem;
  aspect-ratio: 3 / 4;
  display: block;
  border-radius: 12px;
  overflow: hidden;
  border: none;
  background: none;
}

#coaches .card__img {
  width: 100%;
  height: auto;
  border-radius: 14px;
  display: block;
}

#coaches .card__media {
  margin-bottom: 12px;
}

.coach-role {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
  margin-bottom: 10px;
  transition: box-shadow 0.18s ease, border-color 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.coach-role--head {
  background: var(--accent);
  color: #000;
}

.coach-role--senior {
  background: transparent;
  border: 1px solid rgba(247, 198, 0, 0.7);
  color: #f3d35c;
}

.hero-image {
  cursor: zoom-in;
  transition: transform 0.2s ease;
}

.lightbox {
  position: fixed;
  inset: 0;
  padding: calc(12px + env(safe-area-inset-top))
           calc(12px + env(safe-area-inset-right))
           calc(12px + env(safe-area-inset-bottom))
           calc(12px + env(safe-area-inset-left));
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.88);
  z-index: 1000;
}

.lightbox[hidden] {
  display: none;
}

.lightbox__img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  border-radius: 16px;
  object-fit: contain;
}

.lightbox__overlay {
  position: absolute;
  inset: 0;
}

.lightbox__close {
  position: absolute;
  top: calc(12px + env(safe-area-inset-top));
  right: calc(12px + env(safe-area-inset-right));
  min-width: 40px;
  min-height: 40px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1;
}

@media (hover: hover) {
  .hero-image:hover {
    transform: scale(1.02);
  }
}

@media (max-width: 600px) {
  .lightbox__img {
    border-radius: 12px;
  }

  .lightbox__close {
    min-width: 44px;
    min-height: 44px;
    width: 44px;
    height: 44px;
  }
}

@media (hover: hover) and (pointer: fine) {
  .coach-role--head:hover {
    box-shadow: 0 0 10px rgba(247, 198, 0, 0.28);
  }

  .coach-role--senior:hover {
    border-color: var(--accent2);
    box-shadow: 0 0 10px rgba(247, 198, 0, 0.22);
  }
}

.card__title,
.feature__title,
.schedule-card__title,
.faq__q {
  margin: 0;
  font-size: 1.05rem;
}

.card__text,
.feature__text,
.schedule-card__sub,
.faq__a {
  margin: 0.52rem 0 0;
  color: var(--muted);
}

.schedule-card__text {
  margin: 0.5rem 0 0;
  font-size: 1.04rem;
  font-weight: 600;
}

.schedule-card {
  padding: 16px;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.38);
  border-color: rgba(247, 198, 0, 0.24);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.schedule-card__title {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.25;
}

.schedule-card__sub {
  opacity: 0.85;
}

.schedule-card__slots {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.schedule-badge {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--accent);
  color: #000;
  font-size: 12px;
  font-weight: 700;
}

.schedule-slot {
  margin: 0;
  padding-top: 0.45rem;
  color: var(--muted);
}

.schedule-slot + .schedule-slot {
  border-top: 1px solid rgba(247, 198, 0, 0.2);
}

.schedule-card.is-next {
  border-color: rgba(247, 198, 0, 0.62);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.32), 0 0 16px rgba(247, 198, 0, 0.22);
}

@media (hover: hover) and (pointer: fine) {
  .schedule-card:hover {
    transform: translateY(-2px);
    border-color: rgba(247, 198, 0, 0.5);
  }
}

@media (min-width: 900px) {
  .grid--schedule {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.schedule-list {
  margin: 0.8rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.52rem;
  color: var(--muted);
}

.schedule-list li {
  position: relative;
  padding-left: 1.05rem;
}

.schedule-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.schedule-price {
  margin-top: 1rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(18, 24, 33, 0.9), rgba(13, 18, 25, 0.9));
}

.schedule-cta {
  margin-top: 48px;
  text-align: center;
}

.arena-map {
  margin-top: 16px;
}

.arena-map__icons {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.map-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.25s ease;
  border: 1px solid var(--border);
}

.map-icon__svg {
  width: 22px;
  height: 22px;
}

.map-icon--yandex {
  background: #ffcc00;
  color: #000;
}

.map-icon--2gis {
  background: #1ec500;
  color: #fff;
}

.map-icon:hover {
  transform: scale(1.08);
  box-shadow: 0 0 14px var(--glow);
}

.gallery {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  touch-action: pan-y;
}

.gallery__track {
  display: flex;
  transition: transform 0.6s ease;
  scroll-snap-type: x mandatory;
}

.gallery__slide {
  min-width: 100%;
  height: 420px;
  object-fit: cover;
  scroll-snap-align: center;
}

.gallery__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: #ffd400;
  border: none;
  font-size: 28px;
  width: 44px;
  height: 44px;
  padding: 6px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 5;
}

.gallery__btn--prev {
  left: 12px;
}

.gallery__btn--next {
  right: 12px;
}

@media (max-width: 600px) {
  .gallery__slide {
    height: 240px;
    border-radius: 14px;
  }

  .gallery__btn {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    font-size: 22px;
  }
}

@media (hover: hover) {
  .gallery__btn:hover {
    background: rgba(0, 0, 0, 0.8);
  }
}

@media (hover: none) {
  .gallery__btn:hover {
    background: rgba(0, 0, 0, 0.5);
  }
}

.arena-route {
  width: 100%;
  max-width: 260px;
}

.arenas-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.arena-card {
  padding: 1rem;
}

.list {
  margin: 0.75rem 0 0;
  padding-left: 1rem;
  color: var(--muted);
}

.list li + li {
  margin-top: 0.3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  min-height: 48px;
  padding: 0.76rem 1.22rem;
  border-radius: 13px;
  border: 1px solid transparent;
  font-weight: 650;
  transition: transform 0.18s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.btn__icon {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
}

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

.btn:hover .btn__icon {
  transform: translateX(1px) scale(1.05);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  color: #111214;
  background: var(--accent);
  border-color: rgba(247, 198, 0, 0.62);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35), 0 0 14px rgba(247, 198, 0, 0.16);
}

.btn--primary:hover {
  background: var(--accent2);
  box-shadow: 0 0 20px var(--glow);
}

.btn--ghost {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.btn--ghost:hover {
  color: var(--accent2);
  border-color: rgba(247, 198, 0, 0.72);
  background: rgba(247, 198, 0, 0.10);
}

.btn--bot {
  border: 2px solid var(--accent);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text);
  box-shadow: 0 0 0 transparent, inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.btn--bot:hover {
  background: var(--accent);
  color: #000;
  box-shadow: 0 0 18px var(--glow);
  transform: translateY(-2px);
}

.btn--bot:active {
  transform: translateY(0);
}

.btn--bot:focus-visible {
  outline: 3px solid rgba(255, 216, 74, 0.55);
  outline-offset: 3px;
}

.gallery-item {
  padding: 0;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
}

.gallery__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  filter: saturate(1.04) contrast(1.03);
  transition: transform 0.35s ease;
}

.gallery-item:hover .gallery__img {
  transform: scale(1.03);
}

.cta {
  margin-top: 1rem;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.cta__text {
  margin: 0;
  color: var(--muted);
}

.placeholder {
  min-height: 150px;
  display: grid;
  place-items: center;
  text-align: center;
  color: #d7dbe2;
  border-radius: 12px;
  border: 1px solid rgba(247, 198, 0, 0.22);
  background: linear-gradient(160deg, rgba(26, 33, 44, 0.86), rgba(16, 21, 29, 0.86));
}

.placeholder--hero {
  min-height: 300px;
}

.footer {
  border-top: 1px solid var(--border);
  background: rgba(8, 11, 17, 0.72);
}

.footer__inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.muted {
  color: var(--muted);
}

.scroll-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #000;
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: 0.3s ease;
  z-index: 999;
}

.scroll-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--accent2);
}

@media (max-width: 1024px) {
  .grid--cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--features {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .nav {
    width: 100%;
    flex-wrap: wrap;
    gap: 0.35rem;
  }

  .nav__link {
    padding: 0.38rem 0.65rem;
    font-size: 0.94rem;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 0.9rem;
  }

  .arenas-grid {
    grid-template-columns: 1fr;
  }

  .about__list {
    grid-template-columns: 1fr;
  }

  .header__inner {
    min-height: auto;
    padding: 0.75rem 0;
    flex-wrap: wrap;
  }

  .header-title {
    font-size: 1.2rem;
  }

  .header-title__icon,
  .header-title__icon .bolt {
    width: 16px;
    height: 16px;
  }

  .header-slogan {
    font-size: 0.7rem;
  }

  .hero__actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero__actions .btn {
    width: 100%;
    max-width: 360px;
  }

  .hero__image-block {
    margin-top: 24px;
  }

  .hero__content {
    padding: 22px;
  }

  .hero__title {
    font-size: clamp(2rem, 8vw, 2.6rem);
  }

  .btn {
    width: 100%;
  }

  .grid--cards,
  .grid--features,
  .grid--gallery {
    grid-template-columns: 1fr;
  }

  .cta,
  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

  header::after {
    animation: none;
  }

  .hero__storm::before,
  .hero__storm::after {
    animation: none;
    opacity: 0;
  }
}