:root {
  color-scheme: light;
  --host-ink: #1a2420;
  --host-muted: #5a6a62;
  --host-line: #d5ddd8;
  --host-paper: #f7f5f0;
  --host-card: #ffffff;
  --host-accent: #0b5f4a;
  font-family: Georgia, 'Times New Roman', serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at top, #fffef9 0%, var(--host-paper) 55%, #ebe6dc 100%);
  color: var(--host-ink);
  line-height: 1.55;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: #ece8df;
  padding: 0.1em 0.35em;
  border-radius: 0.25rem;
}

.host-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--host-line);
  background: rgba(255, 255, 255, 0.72);
}

.host-brand {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.host-note {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 0.9rem;
  color: var(--host-muted);
}

.host-version {
  margin-left: 0.5rem;
  font-weight: 700;
  color: var(--host-accent);
}

.host-main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  display: grid;
  gap: 1.75rem;
}

.host-article h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.host-article p {
  margin: 0 0 1rem;
  color: #2c3732;
}

.host-aside {
  padding: 0;
  border: 1px solid var(--host-line);
  border-radius: 0.35rem;
  background: var(--host-card);
  overflow: hidden;
}

.host-aside h2 {
  margin: 0 0 0.35rem;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.host-hint {
  margin: 0 0 1rem;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 0.88rem;
  color: var(--host-muted);
}

.island-mark {
  --j-mark: #189030;
  --j-mark-soft: rgba(120, 192, 24, 0.18);
  position: relative;
  padding: 1.15rem 1.2rem 1.35rem;
  background:
    linear-gradient(180deg, rgba(232, 248, 236, 0.55), transparent 42%),
    var(--host-card);
  box-shadow: inset 3px 0 0 var(--j-mark);
}

.island-mark::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 1px dashed color-mix(in srgb, var(--j-mark) 45%, transparent);
  border-radius: inherit;
  opacity: 0.85;
}

.island-mark-shadow {
  --j-mark: #0b5f4a;
  background:
    linear-gradient(180deg, rgba(11, 95, 74, 0.08), transparent 42%),
    var(--host-card);
}

.island-mark-head {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.55rem;
  margin-bottom: 0.85rem;
}

.island-mark-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.65rem 0.28rem 0.35rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--j-mark) 35%, white);
  background: linear-gradient(135deg, #0a2a18, #145c2e);
  color: #e8fce8;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.island-mark-logo {
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  background: #fff;
  object-fit: contain;
}

.island-mark-file {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--j-mark);
  background: var(--j-mark-soft);
  border: 1px solid color-mix(in srgb, var(--j-mark) 28%, transparent);
  padding: 0.22rem 0.55rem;
  border-radius: 0.4rem;
}

.island-mark-tag {
  margin-left: auto;
  padding: 0.2rem 0.5rem;
  border-radius: 0.35rem;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #0b5f4a;
  background: rgba(11, 95, 74, 0.1);
  border: 1px solid rgba(11, 95, 74, 0.22);
}

.island-mark-slot {
  position: relative;
  z-index: 1;
  padding: 0.85rem 0.9rem;
  border-radius: 0.65rem;
  border: 1px solid color-mix(in srgb, var(--j-mark) 28%, var(--host-line));
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.92), rgba(240, 252, 242, 0.75));
  box-shadow: 0 0 0 3px var(--j-mark-soft);
}

.island-mark > h2,
.island-mark > .host-hint {
  position: relative;
  z-index: 1;
}

.host-loading {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 0.9rem;
  color: var(--host-muted);
  font-style: italic;
}

.host-foot {
  padding: 1.25rem 1.5rem 2rem;
  border-top: 1px solid var(--host-line);
  text-align: center;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 0.88rem;
  color: var(--host-muted);
}

.host-foot a {
  color: var(--host-accent);
  font-weight: 600;
}