/* biblioteca-app/style.css
   Paleta oscura, sobria. Ocre canario como único acento.
   Layout 3 columnas (sliders | feed | misiones) — desktop primero,
   colapsa en móvil a una sola columna con paneles plegables. */

:root {
  /* Skin ÍNDIGO (2026-05-29) — hermana de POLIS y Ágora: mismo shell OCRE,
     dominante índigo profundo, acento oro PHAROS conservado. */
  --bg:           #0e1320;   /* índigo muy oscuro */
  --bg-panel:    #15192a;
  --bg-card:     #1a2030;
  --bg-card-hi:  #232a3a;
  --line:        #2a3242;
  --line-soft:   #1d2230;
  --text:        #e7ece0;    /* parchemino pálido */
  --text-dim:    #a3aab8;
  --text-faint:  #586173;
  --ocre:        #c9a86a;    /* acento cálido (oro PHAROS, igual que POLIS) */
  --ocre-soft:   #6e5a36;
  --ok:          #5ea674;
  --warn:        #c89a4a;
  --danger:      #b6533a;

  /* Vars del shell OCRE (header + tira), portado de POLIS. */
  --paper-app:   #1a2330;    /* papel del chrome (header + tira) */
  --indigo:      #7a95c8;    /* acento índigo (identidad biblioteca) */
  --indigo-dim:  #486796;
  --oro:         #d4af37;    /* membrete brand (oro PHAROS) */

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.45;
  min-height: 100vh;
}

a { color: var(--ocre); text-decoration: none; }
a:hover { text-decoration: underline; }

button {
  font: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid var(--line);
  padding: 0.4em 0.8em;
  border-radius: 3px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
button:hover { border-color: var(--ocre); }
button.primary {
  background: var(--ocre);
  color: #1a1410;
  border-color: var(--ocre);
  font-weight: 500;
}
button.primary:hover { background: #d6b574; border-color: #d6b574; }
button.ghost { border-color: var(--line-soft); color: var(--text-dim); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

input, textarea, select {
  font: inherit;
  color: inherit;
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 0.5em 0.7em;
  border-radius: 3px;
  width: 100%;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--ocre);
}
textarea { resize: vertical; min-height: 5em; }

/* ─────────────────── LAYOUT ─────────────────── */

header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7em 1.2em;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
header.topbar h1 {
  margin: 0;
  font-size: 1.05em;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--ocre);
  text-transform: uppercase;
}
header.topbar .topbar-right {
  display: flex;
  align-items: center;
  gap: 0.6em;
  font-size: 0.85em;
  color: var(--text-dim);
}
header.topbar .uid {
  font-family: var(--font-mono);
  font-size: 0.8em;
  color: var(--text-faint);
}

main.app {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 0;
  min-height: calc(100vh - 50px);
}

aside.col {
  background: var(--bg-panel);
  border-right: 1px solid var(--line);
  padding: 1.2em 1em;
  overflow-y: auto;
}
aside.col.right {
  border-right: none;
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}
section.feed {
  padding: 1.4em 1.6em;
  overflow-y: auto;
  min-width: 0;
}

@media (max-width: 1000px) {
  main.app { grid-template-columns: 1fr; }
  aside.col {
    border-right: none;
    border-left: none;
    border-bottom: 1px solid var(--line);
  }
  aside.col.right {
    border-left: none;
    border-top: 1px solid var(--line);
  }
}

/* ─────────────────── SLIDERS ─────────────────── */

.sliders-title {
  font-size: 0.75em;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 1.2em;
}

.slider-block {
  margin-bottom: 1.5em;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.slider-block .polo {
  font-size: 0.78em;
  color: var(--text-dim);
  text-align: center;
  letter-spacing: 0.03em;
  width: 100%;
}
.slider-block .polo.top    { margin-bottom: 0.4em; color: var(--text); }
.slider-block .polo.bottom { margin-top: 0.4em;    color: var(--text); }

/* Slider vertical — usamos input[range] horizontal y rotamos 90deg via
   appearance + writing-mode (mejor soporte que rotate transform). */
.slider-block input[type=range] {
  -webkit-appearance: slider-vertical;
  appearance: slider-vertical;
  writing-mode: vertical-lr;
  direction: rtl;            /* positivo arriba */
  width: 28px;
  height: 130px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
}
.slider-block .valor {
  font-family: var(--font-mono);
  font-size: 0.75em;
  color: var(--text-faint);
  margin-top: 0.2em;
}

/* ─────────────────── FEED ─────────────────── */

.feed-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1.2em;
}
.feed-header h2 {
  margin: 0;
  font-size: 0.85em;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
}
.feed-header .feed-stats {
  font-family: var(--font-mono);
  font-size: 0.75em;
  color: var(--text-faint);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--ocre-soft);
  border-radius: 3px;
  padding: 1em 1.2em;
  margin-bottom: 0.9em;
  transition: background 0.15s;
}
.card:hover { background: var(--bg-card-hi); }
.card.is-mision { border-left-color: var(--ocre); border-left-width: 5px; }

.card .card-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5em;
  gap: 0.6em;
}
.card .card-id {
  font-family: var(--font-mono);
  font-size: 0.75em;
  color: var(--ocre);
  letter-spacing: 0.04em;
}
.card .card-score {
  font-family: var(--font-mono);
  font-size: 0.72em;
  color: var(--text-faint);
}
.card .card-body {
  font-size: 0.92em;
  color: var(--text);
  line-height: 1.55;
}
.card .card-body p { margin: 0.4em 0; }
.card .card-body strong { color: var(--ocre); font-weight: 600; }
.card .card-body a { color: var(--ocre); }
.card .card-toggle {
  margin-top: 0.5em;
  font-size: 0.75em;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
}
.card .card-toggle:hover { color: var(--ocre); }
.card.collapsed .card-body { max-height: 5.6em; overflow: hidden; position: relative; }
.card.collapsed .card-body::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2em;
  background: linear-gradient(transparent, var(--bg-card));
  pointer-events: none;
}

.feed-pager {
  display: flex;
  justify-content: center;
  margin: 1.6em 0 2em;
}

.feed-empty {
  color: var(--text-dim);
  font-style: italic;
  text-align: center;
  padding: 3em 1em;
}

/* ─────────────────── MISIONES ─────────────────── */

.misiones-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1em;
}
.misiones-head h2 {
  margin: 0;
  font-size: 0.85em;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
}
.mision-list {
  flex: 1;
  overflow-y: auto;
}
.mision-list:empty::before {
  content: "Sin misiones abiertas.";
  color: var(--text-faint);
  font-style: italic;
  font-size: 0.85em;
}
.mision-item {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--ocre);
  border-radius: 3px;
  padding: 0.7em 0.8em;
  margin-bottom: 0.6em;
}
.mision-item .mision-title {
  font-size: 0.9em;
  color: var(--text);
  margin-bottom: 0.3em;
  line-height: 1.3;
}
.mision-item .mision-meta {
  font-family: var(--font-mono);
  font-size: 0.7em;
  color: var(--text-faint);
  margin-bottom: 0.4em;
}
.mision-item .mision-actions {
  display: flex;
  gap: 0.4em;
  margin-top: 0.3em;
}
.mision-item button {
  font-size: 0.75em;
  padding: 0.25em 0.6em;
}

.sintesis-cta {
  margin: 1em 0 0.6em;
  border-top: 1px solid var(--line-soft);
  padding-top: 1em;
}
.sintesis-cta button {
  width: 100%;
  font-size: 0.85em;
  color: var(--ocre);
  border-color: var(--ocre-soft);
}

/* ─────────────────── HONESTY METER ─────────────────── */

.honesty {
  margin-top: 1em;
  padding-top: 1em;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  align-items: stretch;
}
.honesty .honesty-label {
  font-size: 0.7em;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.4em;
}
.honesty .honesty-row {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.85em;
}
.honesty .dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--text-faint);
  flex-shrink: 0;
}
.honesty.verde .dot { background: var(--ok); }
.honesty.ambar .dot { background: var(--warn); }
.honesty .honesty-text {
  font-family: var(--font-mono);
  font-size: 0.78em;
  color: var(--text-dim);
}
.honesty .honesty-hint {
  font-size: 0.72em;
  color: var(--text-faint);
  margin-top: 0.3em;
  font-style: italic;
}

/* ─────────────────── MODAL ─────────────────── */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1em;
}
.modal-backdrop[hidden] { display: none; }
.modal {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.4em 1.6em;
}
.modal h3 {
  margin: 0 0 0.6em;
  font-size: 1em;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--ocre);
}
.modal .modal-intro {
  font-size: 0.9em;
  color: var(--text-dim);
  margin-bottom: 1em;
  line-height: 1.55;
}
.modal .field {
  margin-bottom: 0.9em;
}
.modal .field label {
  display: block;
  font-size: 0.78em;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.3em;
}
.modal .modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.6em;
  margin-top: 1em;
}
.modal .modal-error {
  color: var(--danger);
  font-size: 0.85em;
  margin-top: 0.5em;
}
.modal .modal-ok {
  color: var(--ok);
  font-size: 0.85em;
  margin-top: 0.5em;
}

/* Síntesis: listado de fuentes */
.fuentes-list { margin-top: 0.4em; }
.fuente-row {
  display: grid;
  grid-template-columns: 1fr 110px 28px;
  gap: 0.4em;
  margin-bottom: 0.4em;
  align-items: center;
}
.fuente-row select, .fuente-row input { padding: 0.35em 0.5em; font-size: 0.85em; }
.fuente-row button {
  padding: 0.15em 0.4em;
  border-color: var(--line-soft);
  color: var(--text-faint);
}
.fuente-row button:hover { color: var(--danger); border-color: var(--danger); }
.fuentes-add {
  font-size: 0.8em;
  color: var(--ocre);
  margin-top: 0.3em;
  display: flex;
  gap: 0.5em;
}
.fuentes-add button { font-size: 0.8em; padding: 0.25em 0.7em; }
.fuentes-hint {
  font-size: 0.75em;
  color: var(--text-faint);
  font-style: italic;
  margin-top: 0.3em;
}

/* ══════════════════════════════════════════════════════════════════════
   EXTENSIONES v20260527d — masa crítica Biblioteca
   ══════════════════════════════════════════════════════════════════════ */

.biblio-actions { margin-top: 0.6rem; }
.btn-ghost-wide {
  display: block; width: 100%;
  background: transparent; color: var(--text);
  border: 1px solid var(--line-soft, #222);
  border-radius: 4px;
  padding: 0.5em 0.8em; margin-bottom: 0.4rem;
  font: inherit; font-size: 0.85em; text-align: left;
  cursor: pointer; transition: all 150ms ease;
}
.btn-ghost-wide:hover {
  border-color: var(--ocre);
  color: var(--ocre);
  background: rgba(201,168,106,0.04);
}

.feed-empty {
  background: var(--surface, #141414);
  border: 1px dashed var(--line-soft, #222);
  border-radius: 6px;
  padding: 1.4rem 1.2rem;
  margin: 0.4rem 0;
  color: var(--text);
  font-size: 0.92em;
}
.feed-empty h3 {
  font-size: 1em; font-weight: 500;
  color: var(--ocre); margin: 0 0 0.6em 0;
}
.feed-empty p { margin: 0 0 0.6em 0; color: var(--text-faint, #888); }
.feed-empty .empty-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.6rem; }
.feed-empty .empty-actions button {
  background: transparent; color: var(--text);
  border: 1px solid var(--ocre); border-radius: 4px;
  padding: 0.4em 0.8em; font: inherit; font-size: 0.85em;
  cursor: pointer;
}
.feed-empty .empty-actions button:hover {
  background: var(--ocre); color: var(--bg);
}
.feed-empty .empty-stat { font-size: 0.8em; color: var(--text-faint, #888); margin-top: 0.4em; font-style: italic; }

.tokens-block {
  margin-top: 0.8rem;
  font-size: 0.85em;
  color: var(--text);
  border-top: 1px solid var(--line-soft, #222);
  padding-top: 0.6rem;
}
.tokens-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.3rem; }
.tokens-saldo {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 1.4em; color: var(--ocre);
}
.tokens-hint { color: var(--text-faint, #888); font-size: 0.82em; margin: 0.2rem 0 0.5rem 0; }
.btn-token-emit {
  background: var(--ocre); color: var(--bg);
  border: none; border-radius: 4px;
  padding: 0.4em 0.9em; font: inherit; font-size: 0.85em;
  cursor: pointer; font-weight: 500;
}
.btn-token-emit:hover { opacity: 0.85; }
.tokens-emitidos {
  list-style: none; padding: 0; margin: 0.5rem 0 0 0;
  font-size: 0.75em; color: var(--text-faint, #888);
  font-family: ui-monospace, Menlo, monospace;
}
.tokens-emitidos li { padding: 0.15em 0; }

/* Barra superior compartida (shared/navbar.css, 40px fija). */
.kn-has-navbar header.topbar { position: sticky; top: 40px; z-index: 20; }

/* ══════════════════════════════════════════════════════════════════════
   SHELL OCRE ▾ — portado de POLIS (mismo idioma que polis-app / agora-app).
   Skin índigo: papel oscuro / tinta clara / acento índigo + oro brand.
   ══════════════════════════════════════════════════════════════════════ */
.biblio-topshell { position: sticky; top: 0; z-index: 20; }

.app-topbar {
  position: relative;
  min-height: 56px;
  background: var(--paper-app);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 10px; gap: 6px;
  border-bottom: 1px solid var(--line);
}
.app-topbar-left, .app-topbar-right {
  display: flex; align-items: center; gap: 6px; height: 56px;
}

.app-topbar-brand {
  display: flex; align-items: center; gap: 8px;
  cursor: pointer; user-select: none;
  font-family: var(--font-serif);
  font-size: 20px; font-weight: 600; letter-spacing: 0.02em;
  color: var(--text);
}
.app-topbar-brand .brand-icon {
  display: inline-block; width: 18px; height: 22px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 22'><path fill='%23d4af37' d='M6 1 h6 v3 h-1 v3 l1.2 1.2 v2 l-1 0.8 v6 l1.5 1.3 v3.7 h-9 v-3.7 l1.5-1.3 v-6 l-1-0.8 v-2 l1.2-1.2 v-3 h-1z'/></svg>");
  background-size: contain; background-repeat: no-repeat; background-position: center;
}
.app-topbar-brand .brand-text { color: var(--oro); }
.app-topbar-brand .brand-caret {
  font-size: 11px; opacity: 0.6; margin-left: 2px;
  font-family: var(--font-mono); color: var(--text-dim);
}

/* [2026-05-31] Toggle segmentado idéntico a POLIS (adaptado a skin índigo):
   píldora centrada, 3 segmentos icono+label, activo relleno con su color de
   sección. Mismos colores de identidad que POLIS (azul/rojo/verde). */
.app-pillars {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  display: flex; align-items: center; gap: 2px;
  z-index: 15;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 3px;
}
.app-pillars .pillar {
  display: flex; align-items: center; gap: 6px;
  font-family: var(--font-serif);
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  padding: 5px 12px;
  border-radius: 999px;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}
.app-pillars .pillar-ico { display: inline-flex; line-height: 0; }
.app-pillars .pillar-polis      .pillar-ico { color: #2f6fb3; }
.app-pillars .pillar-agora      .pillar-ico { color: #c95252; }
.app-pillars .pillar-biblioteca .pillar-ico { color: #5ea674; }
.app-pillars .pillar:hover { color: var(--text); background: rgba(255, 255, 255, 0.08); }
.app-pillars .pillar.is-active { color: #fff; }
.app-pillars .pillar.is-active .pillar-ico { color: #fff; }
.app-pillars .pillar-polis.is-active      { background: #2f6fb3; }
.app-pillars .pillar-agora.is-active      { background: #c95252; }
.app-pillars .pillar-biblioteca.is-active { background: #5ea674; }
@media (max-width: 640px) {
  .app-pillars .pillar-label { display: none; }
  .app-pillars .pillar { padding: 6px 9px; }
}

/* [2026-05-31] Avatar del cursus honorum: círculo flotante abajo a la
   derecha con "?" (idéntico a POLIS y ÁGORA). Relleno oro PHAROS sobre el
   skin índigo oscuro. El botón "+ Misión" del topbar se conserva. */
.app-avatar-fab {
  position: fixed;
  right: 16px; bottom: 24px;
  width: 56px; height: 56px;
  border-radius: 50%;
  appearance: none; border: none;
  background: var(--oro);
  color: #15192a;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; padding: 0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
  z-index: 60;
  transition: transform 0.15s;
}
.app-avatar-fab:hover { transform: scale(1.05); }
.app-avatar-fab:active { transform: scale(0.97); }
.app-avatar-fab .ava-badge {
  position: absolute;
  top: -2px; right: -2px;
  min-width: 20px; height: 20px;
  box-sizing: border-box;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--indigo, #7a95c8);
  color: #fff;
  font-family: var(--font-mono, monospace);
  font-size: 13px; font-weight: 700;
  line-height: 20px; text-align: center;
  border: 2px solid var(--paper-app);
}
.app-avatar-fab[data-registered="true"] .ava-badge { display: none; }

.app-topbar-iconbtn {
  appearance: none; background: transparent; border: none;
  width: 36px; height: 36px; padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--text-dim); border-radius: 6px;
  font-size: 1rem; line-height: 1;
  transition: background 0.12s, color 0.12s;
}
.app-topbar-iconbtn:hover { background: var(--bg-card-hi); color: var(--indigo); }

.app-topbar-enter {
  font-family: var(--font-serif); font-size: 14px; color: var(--text);
  background: transparent; border: 1px solid var(--indigo-dim); border-radius: 6px;
  padding: 5px 12px; cursor: pointer; letter-spacing: 0.01em;
}
.app-topbar-enter:hover { border-color: var(--indigo); color: var(--indigo); }
.app-topbar-enter.primary {
  background: var(--indigo); color: var(--bg); border-color: var(--indigo); font-weight: 600;
}
.app-topbar-enter.primary:hover { background: var(--indigo-dim); border-color: var(--indigo-dim); }

/* Dropdown de vistas (POLIS / ÁGORA / BIBLIOTHEKA). */
.app-topbar-menu {
  position: fixed; top: 58px; left: 12px; min-width: 240px;
  background: var(--paper-app); border: 1px solid var(--line);
  border-radius: 10px; padding: 6px;
  display: none; flex-direction: column; gap: 2px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5);
  z-index: 21;
}
.app-topbar-menu.open { display: flex; }
.atm-item {
  appearance: none; background: transparent; border: none;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 6px; cursor: pointer;
  font-family: inherit; text-align: left; text-decoration: none;
  color: var(--text);
}
.atm-item:hover { background: var(--bg-card-hi); }
.atm-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--indigo); flex-shrink: 0; }
.atm-text { display: flex; flex-direction: column; gap: 1px; }
.atm-name { font-family: var(--font-serif); font-size: 14px; font-weight: 600; letter-spacing: 0.04em; }
.atm-desc { font-family: var(--font-serif); font-size: 11px; opacity: 0.7; }
.atm-active .atm-name { color: var(--indigo); }

/* Tira "multitouch": touchbar v2 — 5 niveles de compromiso.
   Banda continua con el header. En móvil scroll horizontal si no
   caben los 5 chips a la vez (overflow-x: auto). */
.biblio-strip {
  display: flex; align-items: center; justify-content: center; gap: 4px;
  min-height: 36px; padding: 4px 8px;
  background: var(--paper-app);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;             /* Firefox */
}
.biblio-strip::-webkit-scrollbar { display: none; } /* WebKit */

/* Chip individual de la touchbar. Tres estados: normal, .is-active
   (lente seleccionada — invierte papel/tinta para máximo contraste,
   acento oro PHAROS en el borde para coherencia con el brand) e
   .is-soon (lente sin seed todavía — opacidad reducida + sufijo ⋯
   para señalar "próximamente" sin esconder el chip). */
.biblio-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  border-radius: 3px;
  white-space: nowrap;
  transition: background 120ms, border-color 120ms, color 120ms, opacity 120ms;
}
.biblio-chip:hover {
  background: var(--bg-card);
  color: var(--text);
  border-color: var(--line-soft);
}
.biblio-chip.is-active {
  background: var(--bg-card-hi);
  color: var(--text);
  border-color: var(--oro);
}
.biblio-chip.is-soon {
  opacity: 0.55;
}
.biblio-chip.is-soon::after {
  content: "⋯";
  margin-left: 2px;
  opacity: 0.6;
}
.biblio-chip-glifo {
  font-size: 14px;
  line-height: 1;
  color: var(--oro);
}
.biblio-chip.is-soon .biblio-chip-glifo {
  color: var(--text-faint);
}
.biblio-chip-label {
  font-weight: 500;
}

/* Empty-state cuando la lente activa está en modo "próximamente".
   Centrado, con glifo grande y CTA explícito a volver a Epígrafes
   (la única lente con contenido hoy) para no dejar al usuario en
   callejón sin salida. */
.lens-soon {
  text-align: center;
  padding: 48px 24px;
  max-width: 520px;
  margin: 0 auto;
}
.lens-soon-glifo {
  font-size: 56px;
  line-height: 1;
  color: var(--text-faint);
  margin-bottom: 14px;
  user-select: none;
}
.lens-soon-title {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  margin: 0 0 14px;
  letter-spacing: 0.02em;
}
.lens-soon-copy {
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-dim);
  margin: 0 0 22px;
}
.lens-soon-cta {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text-dim);
  cursor: pointer;
  border-radius: 3px;
  transition: background 120ms, color 120ms, border-color 120ms;
}
.lens-soon-cta:hover {
  background: var(--bg-card);
  color: var(--text);
  border-color: var(--oro);
}

/* ─────────── Card: Píldora (cita corta atribuida) ───────────
   Formato sobrio tipo blockquote académica con cita grande
   centrada en serif, comilla decorativa oro, y bloque de meta
   (autor, fuente, verificación) abajo en mono pequeño. */
.card-pildora {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--oro);
  padding: 22px 26px 18px;
  margin-bottom: 16px;
  border-radius: 3px;
}
.pildora-quote-mark {
  position: absolute;
  top: 6px;
  left: 14px;
  font-family: Georgia, serif;
  font-size: 48px;
  line-height: 1;
  color: var(--oro);
  opacity: 0.4;
  user-select: none;
}
.pildora-texto {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.55;
  color: var(--text);
  margin: 0 0 16px;
  font-style: italic;
  padding-left: 18px;
}
.pildora-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  padding-left: 18px;
  display: grid;
  gap: 4px;
}
.pildora-autor strong {
  color: var(--text);
  font-weight: 600;
}
.pildora-autor-breve {
  color: var(--text-faint);
  font-style: italic;
}
.pildora-fuente {
  color: var(--text-faint);
  font-size: 10.5px;
}
.pildora-verif {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 6px;
  background: var(--warn);
  color: var(--bg);
  border-radius: 2px;
  font-size: 9.5px;
  font-weight: 600;
  cursor: help;
}
.pildora-score {
  position: absolute;
  top: 8px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-faint);
}

/* ─────────── Card: Hilo (desarrollo de 1-3 párrafos) ───────────
   Card expandible — colapsada muestra título + meta + preview del
   primer párrafo; al expandir muestra todos los párrafos + fuente
   principal + lecturas complementarias. */
.card-hilo {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--indigo);
  padding: 18px 22px;
  margin-bottom: 16px;
  border-radius: 3px;
}
.hilo-head {
  margin-bottom: 12px;
}
.hilo-titulo {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 6px;
  line-height: 1.35;
}
.hilo-meta {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-faint);
}
.hilo-autor { color: var(--indigo); }
.hilo-score { color: var(--text-faint); }
.hilo-body {
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.62;
  color: var(--text);
}
.hilo-preview {
  margin: 0;
  color: var(--text-dim);
}
.hilo-parrafo {
  margin: 0 0 12px;
}
.hilo-parrafo:last-child {
  margin-bottom: 0;
}
.hilo-fuente-principal,
.hilo-complementarias {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
}
.hilo-fuente-label,
.hilo-complementarias-label {
  color: var(--text-faint);
  margin-right: 6px;
}
.hilo-complementarias ul {
  margin: 6px 0 0;
  padding-left: 20px;
}
.hilo-complementarias li {
  margin-bottom: 3px;
}
.hilo-toggle {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--indigo);
  cursor: pointer;
  user-select: none;
  padding-top: 8px;
  border-top: 1px solid var(--line-soft);
}
.hilo-toggle:hover {
  color: var(--oro);
}