:root {
  --night: #0b1020;
  --text: #eef0f5;
  --text-soft: #b9c0ce;
  --line: rgb(255 255 255 / 0.1);
  --accent: #ff7a1a;
  --accent-ink: #1f1205;
  --glass: rgb(255 255 255 / 0.06);
  --glass-solid: #181f33;
  --gutter: clamp(16px, 4vw, 32px);
  color-scheme: dark;
}

* { box-sizing: border-box; }

figure { margin: 0; }

figure img {
  display: block;
  width: 100%;
  max-width: 540px;
  height: auto;
  margin: 0 auto;
}

figcaption {
  margin-top: 16px;
  color: var(--text-soft);
}

html { background: var(--night); }

body {
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  background: linear-gradient(160deg, #1b2a44 0%, var(--night) 55%) fixed;
}

main {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: clamp(32px, 7vh, 72px) var(--gutter) 64px;
}

a { color: var(--accent); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mark { width: 36px; height: 36px; }
.mark-tile { fill: var(--accent); }
.mark-door { fill: var(--accent-ink); }

h1 {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

nav { display: flex; gap: 20px; }

.summary {
  margin: 20px 0 16px;
  font-size: 1.1rem;
}

section {
  margin-top: 28px;
  padding: 20px clamp(16px, 3vw, 24px);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--glass);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.12);
  backdrop-filter: blur(20px);
}

h2 {
  margin: 0 0 12px;
  font-size: 1.1rem;
  font-weight: 650;
}

section p {
  margin: 0 0 12px;
  color: var(--text-soft);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 9px 0;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--line);
}

tbody th {
  width: 7.5em;
  padding-right: 16px;
  font-weight: 600;
}

ul {
  margin: 0;
  padding-left: 1.2em;
}

li + li { margin-top: 6px; }

footer {
  margin-top: 24px;
  color: var(--text-soft);
  font-size: 0.875rem;
}

@media (prefers-reduced-transparency: reduce) {
  section { background: var(--glass-solid); backdrop-filter: none; }
}

@supports not (backdrop-filter: blur(1px)) {
  section { background: var(--glass-solid); }
}