:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --text: #1b1c1e;
  --muted: #6b6d72;
  --line: #e3e1db;
  --accent: #b5341f;
  --chip: #ebe9e3;
  --read: #8d8f94;
  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --reader-size: 19px;
  --reader-width: 820px;
  --w: 760px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a; --surface: #1c1f24; --text: #e7e6e3; --muted: #9a9ca1; --line: #2b2f36;
    --accent: #f07a5f; --chip: #262a31; --read: #7b7e84; color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text); font: 16px/1.4 var(--sans);
  padding-bottom: env(safe-area-inset-bottom);
}
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
[hidden] { display: none !important; }

/* ---------- cabecera ---------- */
header {
  position: sticky; top: 0; z-index: 5; background: var(--bg);
  padding-top: env(safe-area-inset-top); border-bottom: 1px solid var(--line);
}
.bar { display: flex; align-items: center; gap: 4px; max-width: var(--w); margin: 0 auto; padding: 6px 8px 2px 16px; }
.brand { font: 700 21px/1 var(--serif); letter-spacing: -.01em; padding: 8px 0; margin-right: auto; }
.brand span { color: var(--accent); }
.icon { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 22px; color: var(--text); }
.icon:active { background: var(--chip); }
.icon.txt { font-weight: 600; font-size: 15px; width: 40px; }
.icon.on { color: var(--accent); }
.status { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 40vw; }
.status::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 6px; background: currentColor; vertical-align: 1px; }
.status.ok::before { background: #3a9d5d; }
.status.warn::before { background: #d39b22; }
.status.off::before { background: #b5341f; }
.status:empty { display: none; }

.search { max-width: var(--w); margin: 0 auto; padding: 4px 16px 6px; }
.search input {
  width: 100%; font: inherit; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--surface); color: var(--text);
}
.cats {
  display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; max-width: var(--w); margin: 0 auto;
  padding: 6px 16px 10px; scroll-padding-inline: 16px;
}
.cats::-webkit-scrollbar { display: none; }
.cats button {
  flex: none; padding: 7px 13px; border-radius: 999px; background: var(--chip); font-size: 14px; font-weight: 500;
  white-space: nowrap; min-height: 34px;
}
.cats button[aria-current="true"] { background: var(--text); color: var(--bg); }

/* ---------- lista ---------- */
main { max-width: var(--w); margin: 0 auto; padding: 0 0 40px; }
.section { padding: 18px 16px 4px; }
.section h2 {
  display: flex; align-items: baseline; justify-content: space-between; margin: 0 0 4px;
  font: 700 13px/1.2 var(--sans); text-transform: uppercase; letter-spacing: .08em; color: var(--accent);
}
.section h2 button { font-size: 13px; font-weight: 500; color: var(--muted); text-transform: none; letter-spacing: 0; padding: 6px 0 6px 12px; }
.item { display: flex; gap: 12px; padding: 13px 16px; border-bottom: 1px solid var(--line); text-decoration: none; color: inherit; }
.section .item { padding-left: 0; padding-right: 0; }
.item:active { background: var(--chip); }
.item .txt { flex: 1; min-width: 0; }
.item h3 { margin: 0; font: 600 17px/1.3 var(--serif); }
.item .meta { margin: 0 0 3px; }
.item .sum { margin: 5px 0 0; font-size: 14.5px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.item img { flex: none; width: 76px; height: 76px; object-fit: cover; border-radius: 8px; background: var(--chip); }
.item.read h3 { color: var(--read); font-weight: 500; }
.meta { font-size: 12.5px; color: var(--muted); }
.meta b { font-weight: 600; color: var(--text); }
.item.read .meta b { color: var(--read); }
.empty { padding: 48px 24px; text-align: center; color: var(--muted); }
.more { display: block; margin: 16px auto; padding: 10px 18px; border-radius: 999px; background: var(--chip); font-size: 14px; }
.fresh {
  position: fixed; left: 50%; transform: translateX(-50%); top: calc(env(safe-area-inset-top) + 112px); z-index: 6;
  background: var(--accent); color: #fff; padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
  box-shadow: 0 4px 14px rgba(0,0,0,.18);
}

/* ---------- portada: temas de actualidad en mosaico ---------- */
body.wide { --w: 1120px; }
.front-head { padding: 16px 16px 0; }
.kicker { margin: 0 0 8px; font: 700 12px/1.2 var(--sans); text-transform: uppercase; letter-spacing: .1em; color: var(--accent); }
.tchips { display: flex; flex-wrap: wrap; gap: 4px 14px; }
.tchips a { color: var(--text); text-decoration: none; font: 600 15px/1.6 var(--serif); }
.tchips a:not(:last-child)::after { content: "·"; margin-left: 14px; color: var(--muted); font-weight: 400; }
.topic { padding: 22px 16px 4px; scroll-margin-top: 112px; }
.topic-h { display: flex; align-items: flex-start; gap: 12px; border-top: 2px solid var(--text); padding-top: 10px; margin-bottom: 12px; }
.topic-h .num { font: 700 13px/1.9 var(--sans); color: var(--accent); font-variant-numeric: tabular-nums; }
.topic-h h2 { margin: 0; font: 700 24px/1.15 var(--serif); letter-spacing: -.01em; }
.topic-h .tags { margin: 3px 0 0; font-size: 13px; color: var(--muted); }
.topic-h button, .topic-h .count { flex: none; font-size: 13px; font-weight: 500; color: var(--muted); padding: 4px 0 4px 8px; white-space: nowrap; }
.topic + .item { border-top: 1px solid var(--line); }
.mosaic { display: grid; grid-template-columns: repeat(var(--cols, 2), minmax(0, 1fr)); gap: 10px; }
.tile {
  display: flex; flex-direction: column; min-width: 0; overflow: hidden; text-decoration: none; color: inherit;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
}
.tile:active { filter: brightness(.95); }
.tile img { display: block; width: 100%; aspect-ratio: 16 / 10; max-height: 240px; flex: none; object-fit: cover; background: var(--chip); }
.tile.s img { aspect-ratio: 4 / 3; }
.tile.l img { aspect-ratio: 2 / 1; }
.tile .tt { padding: 10px 12px 13px; }
.tile .meta { margin: 0 0 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tile h3 { margin: 0; font: 600 15.5px/1.28 var(--serif); overflow-wrap: anywhere; }
.tile.m h3 { font-size: 17px; }
.tile.l h3 { font-size: 19px; }
.tile.xl h3 { font-size: 22px; line-height: 1.2; letter-spacing: -.01em; }
.tile .sum { margin: 6px 0 0; font-size: 14px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.tile:not(.has-img) .tt { display: flex; flex-direction: column; justify-content: flex-end; flex: 1; padding-top: 14px; }
.tile.tone-1 { background: color-mix(in srgb, var(--accent) 9%, var(--surface)); border-color: transparent; }
.tile.tone-2 { background: var(--text); color: var(--bg); border-color: transparent; }
.tile.tone-2 .meta, .tile.tone-2 .meta b, .tile.tone-2 .sum { color: inherit; opacity: .78; }
.tile.read h3 { color: var(--read); font-weight: 500; }
.tile.read .meta b { color: var(--read); }
.tile.tone-2.read { opacity: .6; }
.tile.tone-2.read h3 { color: inherit; }
.foot { margin: 24px 16px 0; font-size: 12.5px; color: var(--muted); text-align: center; }
@media (min-width: 600px) {
  .mosaic { gap: 14px; }
  .tile.xl.has-img { flex-direction: row; }
  .tile.xl.has-img img { width: 56%; aspect-ratio: auto; min-height: 230px; max-height: none; flex: none; }
  .tile.xl.has-img .tt { align-self: center; padding: 18px 22px; }
  .tile.xl h3 { font-size: 27px; }
  .topic-h h2 { font-size: 28px; }
}

.update { top: auto; bottom: calc(env(safe-area-inset-bottom) + 18px); z-index: 11; }
.link { padding: 0; color: var(--accent); font-size: inherit; text-decoration: underline; }

/* ---------- lector ---------- */
.reader { position: fixed; inset: 0; z-index: 10; background: var(--bg); overflow-y: auto; overscroll-behavior: contain; }
.rbar {
  position: sticky; top: 0; display: flex; align-items: center; gap: 2px; padding: calc(env(safe-area-inset-top) + 4px) 8px 4px;
  background: var(--bg); border-bottom: 1px solid var(--line);
}
.grow { flex: 1; }
.wide-only { display: none; }
@media (min-width: 760px) { .wide-only { display: inline-flex; } }
.rbody { max-width: var(--reader-width); margin: 0 auto; padding: 18px 16px 64px; }
.rbody h1 { font: 700 28px/1.2 var(--serif); margin: 6px 0 18px; letter-spacing: -.01em; }
#rContent { font: var(--reader-size)/1.62 var(--serif); overflow-wrap: anywhere; }
#rContent h2, #rContent h3, #rContent h4 { font-family: var(--sans); font-size: 1.05em; line-height: 1.3; margin: 1.6em 0 .5em; }
#rContent p { margin: 0 0 1em; }
#rContent img { display: block; max-width: 100%; height: auto; border-radius: 8px; margin: 1em auto; }
#rContent figure { margin: 0; }
#rContent blockquote { margin: 1em 0; padding-left: 14px; border-left: 3px solid var(--accent); color: var(--muted); }
#rContent a { color: var(--accent); }
#rContent ul, #rContent ol { padding-left: 1.3em; margin: 0 0 1em; }
#rContent li { margin-bottom: .35em; }
#rContent .lead { margin: 0 -16px 1.2em; width: calc(100% + 32px); max-width: none; border-radius: 0; }
#rContent .note { font-family: var(--sans); font-size: 15px; color: var(--muted); }
#rContent .note a { display: inline-block; margin-top: 8px; }
.loading { font-family: var(--sans); font-size: 15px; color: var(--muted); }
.loading::after { content: ""; display: inline-block; width: 14px; height: 14px; margin-left: 8px; vertical-align: -2px;
  border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- ajustes ---------- */
dialog { border: 0; border-radius: 16px; padding: 20px; width: min(92vw, 380px); background: var(--surface); color: var(--text); }
dialog::backdrop { background: rgba(0,0,0,.35); }
dialog h2 { margin: 0 0 14px; font: 700 20px var(--serif); }
.row { display: flex; align-items: center; gap: 10px; font-size: 16px; padding: 6px 0; }
.row input { width: 20px; height: 20px; accent-color: var(--accent); }
.hint { margin: 0 0 10px 30px; font-size: 13px; color: var(--muted); }
.actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.actions button { padding: 9px 16px; border-radius: 10px; background: var(--chip); font-weight: 600; }
.actions button[value] { background: var(--text); color: var(--bg); }

@media (min-width: 700px) {
  .item h3 { font-size: 18px; }
  .item img { width: 96px; height: 72px; }
}