:root {
  --bg-deep: #080b24;
  --bg-mid: #17143f;
  --surface: #fffaf0;
  --surface-soft: #fff3d8;
  --surface-glass: rgba(255, 250, 240, 0.96);
  --text: #21172f;
  --muted: #695d7c;
  --line: rgba(141, 98, 255, 0.2);
  --soft-line: rgba(255, 205, 90, 0.24);
  --accent: #2f67d7;
  --accent-dark: #1f3f99;
  --accent-warm: #d98719;
  --accent-glow: rgba(255, 209, 95, 0.38);
  --shadow: 0 24px 64px rgba(3, 6, 32, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  background:
    radial-gradient(circle at 14% 18%, rgba(80, 96, 235, 0.34) 0 2px, transparent 3px),
    radial-gradient(circle at 72% 10%, rgba(255, 215, 104, 0.82) 0 1px, transparent 2px),
    radial-gradient(circle at 92% 32%, rgba(255, 255, 255, 0.78) 0 1px, transparent 2px),
    radial-gradient(circle at 24% 72%, rgba(255, 215, 104, 0.72) 0 1px, transparent 2px),
    linear-gradient(135deg, var(--bg-deep) 0%, var(--bg-mid) 46%, #241348 100%);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: 0;
  min-height: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body::before,
body::after {
  content: "";
  inset: 0;
  pointer-events: none;
  position: fixed;
  z-index: -1;
}

body::before {
  background:
    radial-gradient(circle at 8% 15%, rgba(255, 236, 167, 0.9) 0 1px, transparent 2px),
    radial-gradient(circle at 18% 64%, rgba(112, 148, 255, 0.95) 0 1px, transparent 2px),
    radial-gradient(circle at 31% 28%, rgba(255, 255, 255, 0.7) 0 1px, transparent 2px),
    radial-gradient(circle at 44% 82%, rgba(255, 217, 111, 0.95) 0 1px, transparent 2px),
    radial-gradient(circle at 56% 18%, rgba(255, 255, 255, 0.76) 0 1px, transparent 2px),
    radial-gradient(circle at 67% 56%, rgba(110, 136, 255, 0.86) 0 1px, transparent 2px),
    radial-gradient(circle at 78% 76%, rgba(255, 217, 111, 0.95) 0 1px, transparent 2px),
    radial-gradient(circle at 91% 21%, rgba(255, 255, 255, 0.86) 0 1px, transparent 2px);
  background-size: 360px 360px;
  opacity: 0.84;
}

body::after {
  background:
    linear-gradient(118deg, transparent 0 18%, rgba(77, 108, 255, 0.13) 31%, transparent 45%),
    linear-gradient(142deg, transparent 0 56%, rgba(255, 201, 82, 0.12) 68%, transparent 82%),
    radial-gradient(ellipse at 50% -16%, rgba(134, 94, 255, 0.28), transparent 58%);
}

a {
  color: var(--accent);
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent-dark);
  text-decoration-thickness: 2px;
}

.wrap {
  width: min(100% - 40px, 980px);
  margin: 0 auto;
}

.site-header {
  background: rgba(13, 16, 48, 0.78);
  border-bottom: 1px solid rgba(255, 219, 135, 0.2);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  color: #fff7d7;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
  text-shadow: 0 0 16px rgba(255, 214, 105, 0.45);
  white-space: nowrap;
}

.doc-nav {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-link {
  border: 1px solid rgba(255, 214, 105, 0.26);
  border-radius: 8px;
  color: #fff7d7;
  font-size: 14px;
  line-height: 1.3;
  padding: 8px 10px;
  text-decoration: none;
}

.nav-link.active,
.nav-link:hover {
  background: rgba(255, 214, 105, 0.16);
  border-color: rgba(255, 214, 105, 0.58);
  color: #ffffff;
}

.page {
  padding: 42px 0 56px;
}

.back-link {
  color: #fff7d7;
  display: inline-block;
  font-size: 15px;
  margin-bottom: 18px;
  text-shadow: 0 0 14px rgba(255, 214, 105, 0.38);
}

.document,
.intro {
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.98), var(--surface-glass) 50%, rgba(255, 243, 216, 0.98)),
    var(--surface);
  border: 1px solid var(--soft-line);
  border-radius: 8px;
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.85);
  padding: 34px 38px;
  position: relative;
}

.document::before,
.intro::before {
  background: linear-gradient(90deg, #f7c24d, #7b69ff, #f7c24d);
  border-radius: 8px 8px 0 0;
  content: "";
  height: 4px;
  inset: 0 0 auto;
  position: absolute;
}

.intro {
  margin-bottom: 18px;
}

.eyebrow {
  color: var(--accent-warm);
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 8px;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  letter-spacing: 0;
}

h1 {
  color: #251344;
  font-size: 34px;
  line-height: 1.2;
  margin: 0 0 22px;
}

h1::before {
  background: #ffd96f;
  border-radius: 999px;
  box-shadow: inset -9px 2px 0 #fffaf0, 0 0 18px rgba(255, 207, 77, 0.7);
  content: "";
  display: inline-block;
  height: 24px;
  margin: 0 10px 0 0;
  vertical-align: -3px;
  width: 24px;
}

h2 {
  border-top: 1px solid var(--soft-line);
  color: #2a1a50;
  font-size: 23px;
  line-height: 1.3;
  margin: 34px 0 14px;
  padding-top: 24px;
}

h3 {
  color: #2a1a50;
  font-size: 19px;
  line-height: 1.35;
  margin: 26px 0 10px;
}

p {
  margin: 0 0 16px;
}

ul {
  margin: 0 0 18px 0;
  padding-left: 24px;
}

li {
  margin: 7px 0;
}

li::marker {
  color: var(--accent-warm);
}

code {
  background: #201545;
  border: 1px solid rgba(255, 214, 105, 0.34);
  border-radius: 6px;
  color: #fff3b3;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.94em;
  padding: 1px 5px;
}

.document a,
.doc-card,
.footer-inner a {
  overflow-wrap: anywhere;
}

.doc-grid {
  display: grid;
  gap: 12px;
}

.doc-card {
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.98), rgba(255, 248, 229, 0.97)),
    var(--surface);
  border: 1px solid var(--soft-line);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(3, 6, 32, 0.24);
  color: var(--text);
  display: block;
  padding: 22px 24px;
  position: relative;
  text-decoration: none;
}

.doc-card::after {
  color: var(--accent-warm);
  content: ">";
  font-size: 22px;
  font-weight: 700;
  opacity: 0;
  position: absolute;
  right: 20px;
  top: 22px;
  transition: opacity 160ms ease, transform 160ms ease;
}

.doc-card:hover {
  border-color: rgba(255, 197, 67, 0.68);
  box-shadow: 0 20px 52px rgba(51, 38, 112, 0.32), 0 0 0 1px rgba(255, 214, 105, 0.12);
  transform: translateY(-1px);
}

.doc-card:hover::after {
  opacity: 1;
  transform: translateX(3px);
}

.doc-card-title,
.doc-card-text {
  display: block;
}

.doc-card-title {
  color: #251344;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 6px;
  padding-right: 26px;
}

.doc-card-text {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.site-footer {
  background: rgba(8, 11, 36, 0.74);
  border-top: 1px solid rgba(255, 214, 105, 0.18);
  color: rgba(255, 250, 228, 0.74);
  font-size: 14px;
  padding: 20px 0;
}

.site-footer a {
  color: #ffe08a;
}

.footer-inner {
  display: flex;
  gap: 10px 18px;
  justify-content: space-between;
  flex-wrap: wrap;
}

@media (max-width: 760px) {
  html {
    font-size: 16px;
  }

  .wrap {
    width: min(100% - 28px, 980px);
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .brand {
    white-space: normal;
  }

  .doc-nav {
    justify-content: flex-start;
  }

  .page {
    padding: 26px 0 40px;
  }

  .document,
  .intro {
    padding: 24px 20px;
  }

  h1 {
    font-size: 27px;
  }

  h1::before {
    height: 20px;
    width: 20px;
  }

  h2 {
    font-size: 21px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .back-link {
    display: none;
  }

  html,
  body {
    background: #fff;
  }

  body::before,
  body::after,
  .document::before,
  .intro::before,
  h1::before {
    display: none;
  }

  .wrap {
    width: 100%;
  }

  .document {
    background: #fff;
    border: 0;
    box-shadow: none;
    padding: 0;
  }
}