:root {
  --bg: #070b14;
  --surface: #111a2e;
  --surface-strong: #17243e;
  --ink: #e8f1ff;
  --ink-dim: #a8bcda;
  --ink-mute: #6d819e;
  --cyan: #5fd0ff;
  --line: rgba(155, 176, 208, 0.14);
  --line-bright: rgba(95, 208, 255, 0.3);
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse 70% 40% at 20% 0%, rgba(74, 126, 240, 0.18), transparent 65%),
    radial-gradient(ellipse 55% 35% at 85% 20%, rgba(95, 208, 255, 0.12), transparent 70%),
    var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

a {
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
  padding: 36px 0 48px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 56px;
  color: var(--ink-dim);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px 18px;
  flex-wrap: wrap;
  font-size: 15px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 22px;
  font-weight: 700;
}

.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  filter: drop-shadow(0 0 18px rgba(95, 208, 255, 0.45));
}

.doc {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(27, 42, 72, 0.78), rgba(17, 26, 46, 0.78));
  border-radius: 24px;
  padding: clamp(28px, 6vw, 64px);
  box-shadow: 0 30px 90px -50px rgba(95, 208, 255, 0.35);
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(38px, 6.5vw, 68px);
  line-height: 1;
  letter-spacing: -0.025em;
  overflow-wrap: anywhere;
}

h2 {
  margin: 40px 0 12px;
  font-size: 24px;
  line-height: 1.3;
}

h3 {
  margin: 24px 0 8px;
  font-size: 18px;
  line-height: 1.35;
}

p,
ul,
ol,
dl,
table {
  margin: 0 0 16px;
  color: var(--ink-dim);
}

ul,
ol {
  padding-left: 24px;
}

li {
  margin: 8px 0;
}

strong {
  color: var(--ink);
}

.meta {
  margin: 0 0 38px;
  color: var(--ink-mute);
  font-size: 15px;
}

.lead {
  color: var(--ink);
  font-size: 19px;
}

.notice {
  margin: 24px 0;
  padding: 18px 20px;
  border: 1px solid var(--line-bright);
  border-radius: 16px;
  background: rgba(95, 208, 255, 0.07);
  color: var(--ink-dim);
}

.notice.warning {
  border-color: rgba(255, 179, 102, 0.42);
  background: rgba(255, 179, 102, 0.07);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 999px;
  background: linear-gradient(180deg, #6dd6ff 0%, #2ba8e0 100%);
  color: #061018;
  font-weight: 700;
}

.button.secondary {
  border: 1px solid var(--line-bright);
  background: rgba(95, 208, 255, 0.06);
  color: var(--ink);
}

.button:hover {
  text-decoration: none;
  filter: brightness(1.06);
}

.details {
  display: grid;
  grid-template-columns: minmax(190px, 0.8fr) minmax(0, 1.6fr);
  gap: 0;
  margin: 20px 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}

.details dt,
.details dd {
  margin: 0;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  overflow-wrap: anywhere;
}

.details dt {
  color: var(--ink-mute);
  background: rgba(7, 11, 20, 0.24);
}

.details dd {
  color: var(--ink-dim);
}

.details dt:last-of-type,
.details dd:last-of-type {
  border-bottom: 0;
}

.table-wrap {
  max-width: 100%;
  margin: 20px 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
}

table {
  width: 100%;
  min-width: 640px;
  margin: 0;
  border-collapse: collapse;
  font-size: 15px;
}

th,
td {
  padding: 13px 15px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--ink);
  background: rgba(7, 11, 20, 0.32);
}

tr:last-child td {
  border-bottom: 0;
}

.fine {
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--ink-mute);
  font-size: 14px;
}

.site-footer {
  margin-top: 28px;
  padding: 28px 4px 0;
  border-top: 1px solid var(--line);
  color: var(--ink-mute);
  font-size: 14px;
}

.site-footer p {
  color: var(--ink-mute);
}

.footer-owner {
  color: var(--ink-dim) !important;
  font-weight: 600;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 14px 0;
}

.footer-links a {
  color: var(--ink-dim);
}

@media (max-width: 680px) {
  body {
    font-size: 16px;
  }

  .wrap {
    width: min(100% - 24px, 980px);
    padding: 18px 0 30px;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 28px;
  }

  .nav-links {
    justify-content: flex-start;
    font-size: 14px;
  }

  .doc {
    padding: 26px 18px;
    border-radius: 18px;
  }

  h1 {
    font-size: clamp(31px, 9vw, 44px);
    overflow-wrap: normal;
    hyphens: auto;
  }

  h2 {
    margin-top: 34px;
    font-size: 21px;
  }

  .meta {
    margin-bottom: 28px;
  }

  .lead {
    font-size: 17px;
  }

  .details {
    display: block;
  }

  .details dt,
  .details dd {
    padding: 10px 13px;
  }

  .details dt {
    border-bottom: 0;
    font-size: 13px;
  }

  .details dd:last-of-type {
    border-bottom: 0;
  }

  .actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .site-footer {
    padding-right: 0;
    padding-left: 0;
  }
}