/*
  Solzig.ru — маленькая, но аккуратная статическая страница.
  Без сборщика, фреймворков и зависимостей.
*/

:root {
  --page-bg: #072b53;
  --page-bg-deep: #041f3f;
  --logo-size: clamp(132px, 18vw, 178px);
  --focus-ring: #ffffff;
  --focus-ring-offset: #00a1ff;
}


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

html {
  min-block-size: 100%;
  color-scheme: dark;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-block-size: 100%;
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #fff;
  background: var(--page-bg);
}

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

.skip-link {
  position: fixed;
  inset-block-start: 1rem;
  inset-inline-start: 1rem;
  z-index: 10;
  transform: translateY(-150%);
  padding: 0.75rem 1rem;
  color: #001b33;
  background: #fff;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 4px;
  box-shadow: 0 0 0 6px var(--focus-ring-offset);
}

.page {
  min-block-size: 100svh;
  outline: 0;
}

.hero {
  min-block-size: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(24px, 5vw, 64px);
  background:
    radial-gradient(circle at 50% 42%, rgb(255 255 255 / 0.08), transparent 32rem),
    linear-gradient(135deg, var(--page-bg), var(--page-bg-deep));
}

.logo {
  inline-size: var(--logo-size);
  block-size: auto;
}

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

@media (prefers-reduced-motion: no-preference) {
  .logo {
    animation: logo-in 600ms ease-out both;
  }

  @keyframes logo-in {
    from {
      opacity: 0;
      transform: translateY(8px) scale(0.98);
    }

    to {
      opacity: 1;
      transform: translateY(0) scale(1);
    }
  }
}


@media (prefers-contrast: more) {
  .hero {
    background: var(--page-bg);
  }

  .logo {
    filter: contrast(1.15);
  }
}

@media (forced-colors: active) {
  .hero {
    background: Canvas;
  }

  .logo {
    forced-color-adjust: none;
  }

  .skip-link {
    color: LinkText;
    background: Canvas;
    border: 2px solid LinkText;
  }
}

@media print {
  .page,
  .hero {
    min-block-size: auto;
  }

  .hero {
    padding: 24px;
    background: none;
  }
}