/*
 * Share page chrome (/p/<slug> and status pages): header, footer, post card,
 * source badge, actions, language menu, lightbox. Approved v2 design; tokens: tokens.css.
 */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--ni-color-neutral);
  color: var(--ni-color-text-primary);
  font-family: var(--ni-font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--ni-color-primary); outline-offset: 2px; border-radius: 4px; }
.ni-i { width: 1.25rem; height: 1.25rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.ni-wx { display: none; }

/* buttons */
.ni-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.375rem;
  height: 2.25rem; padding: 0 1rem; border: 0; border-radius: var(--ni-radius-sm);
  font: 600 0.875rem/1 var(--ni-font-sans); white-space: nowrap; cursor: pointer;
}
.ni-btn-primary { background: var(--ni-color-btn); color: #fff; }
.ni-btn-primary:hover { background: var(--ni-color-btn-hover); }
/* Shared by the site and the admin console. */
.ni-btn-sm { height: 2rem; padding: 0 0.75rem; font-size: 0.8125rem; }
.ni-btn-ghost { background: transparent; color: var(--ni-color-text-primary); border: 1px solid var(--ni-color-border); }
.ni-btn-danger { background: var(--ni-color-alert); color: #fff; }
.ni-btn-danger:hover { filter: brightness(0.92); }

/* header */
.ni-hdr {
  position: sticky; top: 0; z-index: 5;
  background: var(--ni-color-header);
  backdrop-filter: saturate(1.6) blur(12px);
  border-bottom: 1px solid var(--ni-color-border);
}
.ni-hdr-in { max-width: 70rem; margin: 0 auto; height: 3.75rem; padding: 0 1.25rem; display: flex; align-items: center; gap: 0.75rem; }
.ni-brand { display: inline-flex; align-items: center; }
.ni-brand img { display: block; height: 1.875rem; width: auto; }
.ni-narrow { display: none; }
.ni-sp { flex: 1; }

/* language menu (no JS: <details>) */
.ni-lang { position: relative; }
.ni-lang summary {
  list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 0.25rem;
  height: 2rem; padding: 0 0.5rem; border-radius: 0.5rem; color: var(--ni-color-text-secondary); font-size: 0.8125rem; white-space: nowrap;
}
.ni-lang summary::-webkit-details-marker { display: none; }
.ni-lang summary:hover { background: var(--ni-color-hover); }
.ni-lang summary .ni-i { width: 1rem; height: 1rem; }
.ni-lang ul {
  position: absolute; inset-inline-end: 0; top: calc(100% + 0.375rem); z-index: 10;
  margin: 0; padding: 0.375rem; list-style: none; width: 13rem; max-height: 22rem; overflow-y: auto;
  background: var(--ni-color-surface); border: 1px solid var(--ni-color-border); border-radius: var(--ni-radius-md);
  box-shadow: var(--ni-shadow-pop);
}
.ni-ftr .ni-lang ul { top: auto; bottom: calc(100% + 0.375rem); }
.ni-lang li a { display: block; padding: 0.375rem 0.625rem; border-radius: 0.5rem; font-size: 0.875rem; }
.ni-lang li a:hover { background: var(--ni-color-surface-2); color: var(--ni-color-primary); }
.ni-lang li a[aria-current] { color: var(--ni-color-primary); font-weight: 600; }

/* post */
.ni-main { flex: 1; width: 100%; max-width: 45rem; margin: 1.75rem auto 0; padding: 0 1.25rem; }
.ni-post { background: var(--ni-color-surface); border-radius: var(--ni-radius-lg); box-shadow: var(--ni-shadow-card); padding: 2rem 2.5rem 1.25rem; }
.ni-author { display: flex; align-items: center; gap: 0.75rem; }
.ni-avatar {
  width: 2.75rem; height: 2.75rem; border-radius: 50%; object-fit: cover; flex: none;
  background: var(--ni-color-surface-2); color: var(--ni-color-primary);
  display: grid; place-items: center; font-weight: 700; font-size: 1.125rem;
}
.ni-who { min-width: 0; line-height: 1.35; }
.ni-name { font-weight: 650; overflow-wrap: anywhere; }
.ni-meta { color: var(--ni-color-text-secondary); font-size: 0.8125rem; }
.ni-dot { display: inline-block; width: 3px; height: 3px; border-radius: 50%; background: currentColor; vertical-align: middle; margin: 0 0.375rem; opacity: 0.7; }
.ni-avatar.ni-av-52 { width: 3.25rem; height: 3.25rem; font-size: 1.375rem; }
/* After the body: source badge + "edited" note on one line (wraps when narrow). */
.ni-post-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; margin-top: 1.5rem; }
.ni-source {
  display: inline-flex; align-items: center; gap: 0.375rem; height: 1.625rem;
  padding-inline: 0.25rem 0.625rem; border-radius: 999px;
  background: var(--ni-color-source-bg); color: var(--ni-color-source-text); border: 1px solid var(--ni-color-source-border); font-size: 0.75rem; font-weight: 600;
}
.ni-source:hover { background: var(--ni-color-source-hover); }
.ni-source img { width: 1.125rem; height: 1.125rem; border-radius: 0.3rem; }
.ni-source .ni-i { width: 0.75rem; height: 0.75rem; stroke-width: 2; }
.ni-title { font-size: 2.125rem; line-height: 1.2; letter-spacing: -0.02em; margin: 1.125rem 0 0; overflow-wrap: anywhere; }
.ni-post .ni-body { margin-top: 1.25rem; }
.ni-edited { font-size: 0.8125rem; color: var(--ni-color-text-secondary); }
.ni-actions { display: flex; align-items: center; gap: 0.25rem; margin: 1rem -0.625rem 0; padding-top: 0.75rem; border-top: 1px solid var(--ni-color-border); color: var(--ni-color-text-secondary); }
.ni-act {
  display: inline-flex; align-items: center; gap: 0.375rem; height: 2.125rem; padding: 0 0.625rem;
  border: 0; border-radius: var(--ni-radius-sm); background: none; color: inherit; font: 500 0.8125rem/1 var(--ni-font-sans); cursor: pointer;
}
.ni-act:hover { background: var(--ni-color-hover); color: var(--ni-color-primary); }
.ni-act[hidden] { display: none; }

/* footer */
.ni-ftr { border-top: 1px solid var(--ni-color-border); background: var(--ni-color-surface); margin-top: 3rem; }
.ni-ftr-in { max-width: 70rem; margin: 0 auto; padding: 1.75rem 1.25rem 2.25rem; display: flex; flex-wrap: wrap; gap: 1.25rem 2.5rem; align-items: flex-start; justify-content: space-between; }
.ni-ftr-brand p { margin: 0.5rem 0 0; color: var(--ni-color-text-secondary); font-size: 0.8125rem; max-width: 18rem; }
.ni-ftr-links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; font-size: 0.8125rem; color: var(--ni-color-text-secondary); }
.ni-ftr-links a:hover { color: var(--ni-color-primary); }
.ni-ftr-meta {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; flex-wrap: wrap;
  font-size: 0.75rem; color: var(--ni-color-muted); border-top: 1px solid var(--ni-color-divider); padding-top: 1rem;
}

/* status pages */
.ni-status { flex: 1; display: grid; place-items: center; padding: 3rem 1.25rem; }
.ni-status-card { width: 100%; max-width: 26rem; background: var(--ni-color-surface); border-radius: var(--ni-radius-lg); box-shadow: var(--ni-shadow-card); padding: 2.5rem 2rem; text-align: center; }
.ni-status-icon { width: 3.5rem; height: 3.5rem; margin: 0 auto 1.25rem; border-radius: 1rem; background: var(--ni-color-surface-2); display: grid; place-items: center; color: var(--ni-color-primary); }
.ni-status-icon .ni-i { width: 1.75rem; height: 1.75rem; stroke-width: 2; }
.ni-status-card h1 { font-size: 1.375rem; line-height: 1.3; margin: 0; }
.ni-status-card p { margin: 0.75rem 0 0; color: var(--ni-color-text-secondary); }

/* toast (progressive enhancement, /scripts/share.js) */
.ni-toast {
  position: fixed; left: 50%; bottom: 2rem; transform: translateX(-50%); z-index: 20;
  background: var(--ni-color-code-bg); color: #fff; padding: 0.625rem 1rem; border-radius: var(--ni-radius-sm); font-size: 0.875rem;
}

/* phones */
@media (max-width: 47.99rem) {
  .ni-hdr-in { height: 3.375rem; padding: 0 0.875rem; gap: 0.5rem; }
  .ni-brand img { height: 1.625rem; }
  .ni-hdr .ni-lang summary span, .ni-hdr-nav span, .ni-hdr .ni-wide { display: none; }
  .ni-hdr .ni-narrow { display: inline; }
  .ni-hdr-nav { padding: 0 0.375rem; }
  .ni-hdr .ni-btn { height: 2rem; padding: 0 0.75rem; font-size: 0.8125rem; }
  .ni-main { margin-top: 0; padding: 0; }
  .ni-post { border-radius: 0; box-shadow: none; padding: 1.25rem 1rem 0.75rem; }
  .ni-title { font-size: 1.625rem; }
  /* Compact phone footer: logo + tagline on one line, links, then © · version + language. */
  .ni-ftr { margin-top: 1rem; }
  .ni-ftr-in { padding: 0.875rem 1rem 1rem; gap: 0.5rem; }
  .ni-ftr-brand { display: flex; align-items: center; gap: 0.625rem; min-width: 0; }
  .ni-ftr-brand .ni-brand img { height: 1.25rem; }
  .ni-ftr-brand p { margin: 0; font-size: 0.75rem; min-width: 0; }
  .ni-ftr-links { gap: 0.25rem 1rem; font-size: 0.75rem; }
  .ni-ftr-meta { border-top: 0; padding-top: 0; }
}

/* information pages */
.ni-info .ni-text { margin-top: 1.25rem; font-size: 1rem; line-height: 1.7; }
.ni-info .ni-text h2 { font-size: 1.0625rem; margin-top: 1.5rem; }
.ni-info .ni-text li + li { margin-top: 0.5rem; }
.ni-ftr-meta .ni-lang summary { height: 1.75rem; }