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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
  background: var(--color-bg-deep);
}

body {
  margin: 0;
  min-width: 20rem;
  min-height: 100vh;
  overflow-x: clip;
  color: var(--color-text);
  background:
    radial-gradient(circle at 15% 4%, rgba(214, 160, 92, 0.065), transparent 28rem),
    radial-gradient(circle at 92% 42%, rgba(103, 152, 207, 0.045), transparent 34rem),
    var(--color-bg);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

::selection {
  color: var(--color-bg-deep);
  background: var(--color-brand-light);
}

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

img {
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

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

p,
h1,
h2,
h3,
ul {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--color-text);
  font-family: var(--font-display);
  line-height: 1.08;
  text-wrap: balance;
}

h1,
h2 {
  letter-spacing: -0.035em;
}

/* Якорная навигация переводит focus на заголовок целевого раздела. */
h1[tabindex="-1"]:focus,
h2[tabindex="-1"]:focus,
main[tabindex="-1"]:focus {
  outline: 2px solid var(--color-brand-light);
  outline-offset: 0.35rem;
}

h2 {
  margin-bottom: var(--space-5);
  font-size: var(--text-3xl);
  font-weight: 760;
}

h3 {
  margin-bottom: var(--space-3);
  font-size: var(--text-xl);
  font-weight: 730;
}

p {
  color: var(--color-text-muted);
}

ul {
  padding: 0;
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--color-brand-light);
  outline-offset: 4px;
}

[hidden] {
  display: none !important;
}

.container {
  width: min(100% - (2 * var(--page-gutter)), var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: clamp(5rem, 9vw, 8.5rem);
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.section--surface {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent 18%, transparent 82%, rgba(255, 255, 255, 0.012)),
    var(--color-bg-soft);
  border-block: 1px solid rgba(255, 255, 255, 0.055);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--color-bg-deep);
  background: var(--color-brand-light);
  font-weight: 700;
  transform: translateY(-150%);
  transition: transform var(--transition-fast);
}

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

.noscript-banner {
  position: relative;
  z-index: 90;
  padding: 0.75rem var(--page-gutter);
  color: #19130d;
  background: var(--color-brand-light);
  text-align: center;
  font-weight: 700;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

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