:root {
  --bg-body: #050b16;
  --bg-elevated: #0b1726;
  --bg-elevated-soft: #0f2034;
  --accent: #4cc3ff;
  --accent-soft: rgba(76, 195, 255, 0.08);
  --accent-strong: #2aa9ee;
  --text-main: #f5f7ff;
  --text-muted: #9aa4c0;
  --border-subtle: #1a2940;
  --danger: #ff6b81;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-soft: 0 22px 60px rgba(0, 0, 0, 0.55);
  --shadow-subtle: 0 10px 35px rgba(0, 0, 0, 0.45);
  --transition-fast: 0.18s ease-out;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(5, 11, 22, 0.96), rgba(5, 11, 22, 0.88));
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo__icon {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: radial-gradient(circle at 30% 20%, #ffffff, #a2ddff 35%, #2b7bdc 65%, #031020 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #03101e;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.65);
}

.logo__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo__title {
  font-size: 16px;
  font-weight: 600;
}

.logo__subtitle {
  font-size: 11px;
  color: var(--text-muted);
}

.nav {
  display: flex;
  gap: 16px;
  font-size: 13px;
}

.nav__link {
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--text-muted);
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.nav__link:hover {
  background-color: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  transform: translateY(-1px);
}

.btn {
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 10px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  color: #021017;
  box-shadow: 0 14px 35px rgba(16, 161, 255, 0.5);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 45px rgba(16, 161, 255, 0.65);
}

.btn--ghost {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.04);
}

.btn--small {
  padding: 8px 16px;
  font-size: 13px;
}

.btn--large {
  padding: 12px 28px;
  font-size: 15px;
}

.hero {
  padding: 40px 0 36px;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.hero__title {
  font-size: 36px;
  margin: 0 0 10px;
}

.hero__tagline {
  margin: 0 0 18px;
  font-size: 15px;
  color: var(--text-muted);
}

.hero__bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: var(--text-main);
}

.hero__bullets li::before {
  content: "•";
  color: var(--accent);
  margin-right: 6px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
}

.hero__rating {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.hero__platforms {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.hero__card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}

.device-mockup {
  width: 100%;
  max-width: 320px;
  border-radius: 32px;
  padding: 10px;
  background: radial-gradient(circle at 20% 0, rgba(255, 255, 255, 0.22), rgba(17, 136, 255, 0.18), rgba(2, 13, 32, 0.95));
  box-shadow: var(--shadow-soft);
}

.device-mockup__screen {
  border-radius: 22px;
  background-color: var(--bg-elevated);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.mockup-label {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.mockup-ice {
  position: relative;
  padding: 34px 10px 42px;
  background: radial-gradient(circle at 50% 0, rgba(255, 255, 255, 0.12), rgba(3, 37, 79, 1));
}

.mockup-hole {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto;
  background: radial-gradient(circle at 50% 40%, #102b4d, #000814 65%, #00040a 100%);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
}

.mockup-line {
  position: absolute;
  left: 52%;
  top: 18%;
  width: 2px;
  height: 70%;
  background: linear-gradient(to bottom, #f5f7ff, rgba(255, 255, 255, 0.1));
  transform: translateX(-50%);
}

.mockup-fish {
  position: absolute;
  bottom: 18%;
  left: 46%;
  width: 34px;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, #9fe0ff, #1cc2ff, #0a7ed3);
  box-shadow: 0 0 24px rgba(95, 219, 255, 0.7);
}

.hero__badge {
  padding: 8px 12px;
  border-radius: 13px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background-color: rgba(5, 15, 30, 0.9);
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero__badge-title {
  font-weight: 600;
  color: var(--accent);
}

.section {
  padding: 36px 0;
}

.section--alt {
  background-color: var(--bg-elevated);
}

.section__title {
  margin: 0 0 6px;
  font-size: 24px;
}

.section__subtitle {
  margin: 0 0 24px;
  font-size: 14px;
  color: var(--text-muted);
  max-width: 640px;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

.feature-card,
.mode-card {
  border-radius: var(--radius-lg);
  padding: 18px 18px 16px;
  background: radial-gradient(circle at 0 0, rgba(76, 195, 255, 0.12), rgba(12, 25, 45, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow-subtle);
}

.feature-card__title,
.mode-card__title {
  margin: 0 0 6px;
  font-size: 16px;
}

.feature-card__text,
.mode-card__text {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
}

.mode-card__tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  margin-bottom: 6px;
  font-size: 11px;
  border-radius: 999px;
  background-color: rgba(76, 195, 255, 0.13);
  color: var(--accent);
}

.stat-card {
  border-radius: var(--radius-md);
  padding: 14px 12px;
  background-color: rgba(5, 15, 32, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}

.stat-card__value {
  display: block;
  font-size: 20px;
  font-weight: 700;
}

.stat-card__label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
}

.features-list {
  margin-top: 20px;
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--text-main);
}

.list li::before {
  content: "✔";
  margin-right: 6px;
  color: var(--accent);
  font-size: 11px;
}

.screens-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.screen-placeholder {
  border-radius: var(--radius-md);
  padding: 24px 10px;
  background-color: rgba(9, 21, 38, 0.98);
  border: 1px dashed rgba(255, 255, 255, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.cta {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.cta__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.store-link {
  font-size: 14px;
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(76, 195, 255, 0.6);
  text-underline-offset: 3px;
}

.footer {
  padding: 22px 0 26px;
  background-color: #030812;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2.1fr 1.4fr 1.5fr;
  gap: 18px;
  font-size: 12px;
}

.footer__title {
  margin: 0 0 6px;
  font-size: 13px;
}

.footer__text {
  margin: 0 0 4px;
  color: var(--text-muted);
}

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

.footer__small {
  margin: 0 0 4px;
  color: var(--text-muted);
  text-align: right;
}

.footer__block--right {
  align-self: flex-end;
}

@media (max-width: 960px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1.1fr);
  }

  .hero__card {
    max-width: 360px;
    margin: 0 auto;
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer__inner {
    grid-template-columns: 1.5fr 1.5fr;
  }

  .footer__block--right {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .header__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    padding-top: 28px;
  }

  .hero__title {
    font-size: 28px;
  }

  .section {
    padding: 26px 0;
  }

  .grid--3,
  .grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .cta__inner {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .footer__small {
    text-align: left;
  }
}