/* ============================================================
   ia-local — misma estética editorial de papel terracota que el
   resto de endikavi.es. Variables idénticas a index/blog y modo
   oscuro automático por prefers-color-scheme.
   ============================================================ */
:root {
  --paper: #faf8f4;
  --ink: #1a1a1a;
  --muted: #5f5a53;
  --accent: #c2452d;
  --hairline: rgba(26, 26, 26, 0.18);
  --hairline-soft: rgba(26, 26, 26, 0.10);
  --header-bg: rgba(250, 248, 244, 0.92);
  --card: #ffffff;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171412;
    --ink: #ece7df;
    --muted: #a59d92;
    --accent: #e06a4d;
    --hairline: rgba(236, 231, 223, 0.22);
    --hairline-soft: rgba(236, 231, 223, 0.12);
    --header-bg: rgba(23, 20, 18, 0.92);
    --card: #1f1b18;
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-y: scroll; }
@media (prefers-reduced-motion: no-preference) {
  @view-transition { navigation: auto; }
  header { view-transition-name: site-header; }
}
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent); color: var(--paper); }
img { max-width: 100%; height: auto; }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 8px; top: -48px; z-index: 100;
  background: var(--accent); color: var(--paper); padding: 8px 14px;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 8px; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 32px; }

/* ---------- Header ---------- */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline-soft);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; max-width: 1120px; margin: 0 auto; padding: 0 32px; gap: 16px; }
.logo { font-family: var(--serif); font-weight: 700; font-size: 1.15rem; letter-spacing: 0.02em; color: var(--ink); text-decoration: none; }
.logo:hover { color: var(--accent); }
nav.main-nav { display: flex; gap: 26px; }
nav.main-nav a {
  font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); text-decoration: none; padding-bottom: 4px;
  border-bottom: 1px solid transparent; transition: color 0.2s, border-color 0.2s;
}
nav.main-nav a:hover { color: var(--ink); border-color: var(--accent); }
nav.main-nav a[aria-current="page"] { color: var(--accent); border-color: var(--accent); }
.lang-toggle { display: flex; align-items: center; gap: 2px; white-space: nowrap; border-left: 1px solid var(--hairline); padding-left: 16px; }
.lang-toggle button {
  background: none; border: none; border-bottom: 1px solid transparent; cursor: pointer;
  font: inherit; font-size: 0.78rem; letter-spacing: 0.1em; padding: 4px 6px; color: var(--muted);
}
.lang-toggle button:hover { color: var(--ink); }
.lang-toggle button.active { color: var(--accent); border-bottom-color: var(--accent); }

main { padding-top: 66px; }
section { padding: 64px 0; }
h1, h2, h3, .step-n { font-family: var(--serif); }
h1 { font-size: clamp(2rem, 4.4vw, 3.2rem); line-height: 1.15; font-weight: 600; margin: 10px 0 18px; }
h2 { font-size: 1.6rem; font-weight: 600; margin-bottom: 14px; }
h3 { font-size: 1.15rem; font-weight: 600; }
.section-label { font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); }
.section-head { margin-bottom: 28px; }

/* [hidden] tiene que ganar: .btn y los chips definen display propio y antes
 * dejaban botones «ocultos» perfectamente visibles y clicables. */
[hidden] { display: none !important; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-size: 0.92rem; cursor: pointer; text-decoration: none;
  padding: 10px 20px; border-radius: 2px; border: 1px solid var(--accent);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary { background: var(--accent); color: var(--paper); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-outline { background: transparent; color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: var(--paper); }
.btn-small { padding: 6px 12px; font-size: 0.8rem; border-color: var(--hairline); color: var(--ink); background: transparent; }
.btn-small:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { border-color: var(--accent); color: var(--accent); }
.btn[disabled] { opacity: 0.45; cursor: not-allowed; }

/* ---------- Portada ---------- */
.ia-hero { padding-top: 72px; }
.ia-hero .hero-desc { max-width: 720px; font-size: 1.05rem; }
.ia-hero .hero-honest {
  max-width: 720px; margin-top: 14px; font-family: var(--serif); font-style: italic;
  color: var(--muted); border-left: 2px solid var(--accent); padding-left: 16px;
}
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }

/* ---------- Wizard ---------- */
.wizard { padding-top: 8px; }
.steps ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; border-bottom: 1px solid var(--hairline); padding-bottom: 14px; margin-bottom: 26px; }
.step-btn {
  display: inline-flex; align-items: center; gap: 8px; background: none; border: none;
  font: inherit; cursor: pointer; color: var(--muted); padding: 6px 10px;
}
.step-btn:hover { color: var(--ink); }
.step-btn .step-n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border: 1px solid var(--hairline); border-radius: 50%;
  font-size: 0.8rem;
}
.step-btn[aria-current="step"] { color: var(--accent); }
.step-btn[aria-current="step"] .step-n { border-color: var(--accent); background: var(--accent); color: var(--paper); }

.panel { max-width: 900px; }
.panel h2 + p { color: var(--muted); margin-bottom: 18px; }
.panel-nav { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.note { font-size: 0.82rem; color: var(--muted); margin-top: 10px; }

fieldset.manual { margin-top: 28px; border: 1px solid var(--hairline-soft); padding: 18px; }
fieldset.manual legend { font-family: var(--serif); padding: 0 8px; }
.field-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-top: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; margin: 8px 0; font-size: 0.9rem; }
.field > span { color: var(--muted); }
.field-wide { grid-column: 1 / -1; }
select, input[type="text"], input[type="number"], textarea {
  font: inherit; color: var(--ink); background: var(--card);
  border: 1px solid var(--hairline); border-radius: 2px; padding: 8px 10px; width: 100%;
}
textarea { resize: vertical; }
.inline { display: flex; gap: 8px; align-items: stretch; }
.inline input { flex: 1; }

/* Diagnóstico */
.diag { margin-top: 18px; }
.diag dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; font-size: 0.9rem; }
.diag dt { color: var(--muted); }
.diag dd { margin: 0; }
.diag .ok { color: var(--accent); font-weight: 600; }
.diag .bad { color: var(--muted); }
.diag .err { font-size: 0.8rem; color: var(--muted); font-style: italic; }

/* Usos */
.use-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 8px; }
.use-card { display: flex; flex-direction: column; gap: 8px; border: 1px solid var(--hairline-soft); padding: 18px; cursor: pointer; }
.use-card:has(input:checked) { border-color: var(--accent); }
.use-card input { width: auto; }
.use-title { font-family: var(--serif); font-weight: 700; }
.use-desc { font-size: 0.85rem; color: var(--muted); }

/* Recomendaciones */
.reco-col { display: flex; flex-direction: column; gap: 14px; margin: 18px 0; }
.reco-card { border: 1px solid var(--hairline-soft); padding: 16px 18px; background: var(--card); }
.reco-card h3 { margin-bottom: 6px; font-size: 1.05rem; }
.reco-card .reco-meta { font-size: 0.8rem; color: var(--muted); }
.reco-card p { margin-top: 8px; font-size: 0.9rem; }
.fit-pill { display: inline-block; margin-left: 8px; padding: 2px 10px; font-size: 0.72rem; border: 1px solid var(--accent); border-radius: 999px; color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase; }
.reco-notes .note-block { border-left: 2px solid var(--accent); padding: 4px 12px; margin: 10px 0; font-size: 0.88rem; color: var(--muted); }
.reco-source { font-size: 0.85rem; color: var(--muted); margin-top: 18px; }

/* Configuración */
.config-summary { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; font-size: 0.9rem; margin: 14px 0 20px; }
.config-summary dt { color: var(--muted); }
.config-summary dd { margin: 0; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-col { flex-direction: column; align-items: stretch; }
.runner-links { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 12px; }
.runner-links a { font-size: 0.9rem; }

/* ---------- Chat ---------- */
.chat-layout { display: grid; grid-template-columns: 250px 1fr; gap: 26px; align-items: start; }
.chat-side { border: 1px solid var(--hairline-soft); padding: 14px; position: sticky; top: 84px; }
.side-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.chat-list { list-style: none; display: flex; flex-direction: column; gap: 4px; max-height: 300px; overflow-y: auto; margin-bottom: 12px; }
.chat-item { display: flex; align-items: center; gap: 4px; }
.chat-item button.chat-open {
  flex: 1; background: none; border: none; font: inherit; text-align: left; cursor: pointer;
  color: var(--ink); padding: 6px 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.chat-item button.chat-open:hover { color: var(--accent); }
.chat-item.active button.chat-open { color: var(--accent); font-weight: 600; }
.chat-item .chat-actions { display: flex; gap: 2px; }
.chat-item .chat-actions button { background: none; border: none; cursor: pointer; color: var(--muted); font-size: 0.85rem; padding: 4px 6px; }
.chat-item .chat-actions button:hover { color: var(--accent); }

.model-config { border: 1px solid var(--hairline-soft); padding: 12px 16px; margin-bottom: 16px; }
.model-config summary { cursor: pointer; font-family: var(--serif); font-weight: 700; }
.load-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 10px; }
.load-status { font-size: 0.85rem; color: var(--muted); }
.file-progress { display: flex; flex-direction: column; gap: 6px; }
.fp-row { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; font-size: 0.78rem; color: var(--muted); align-items: center; }
.fp-row progress { grid-column: 1 / -1; width: 100%; height: 6px; }

.messages {
  border: 1px solid var(--hairline-soft); min-height: 220px; max-height: 480px; overflow-y: auto;
  padding: 16px; margin: 14px 0; display: flex; flex-direction: column; gap: 12px;
  scrollbar-gutter: stable;
}
.msg { max-width: 78ch; }
.msg .msg-role { font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 2px; }
.msg .msg-body { white-space: pre-wrap; word-break: break-word; font-size: 0.95rem; }
.msg.user .msg-body { font-family: var(--sans); }
.msg.assistant .msg-body { font-family: var(--serif); }
.msg.pending .msg-body::after { content: "▌"; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.composer { display: flex; flex-direction: column; gap: 10px; }
.composer-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.composer-row .spacer { flex: 1; }
.file-btn { position: relative; overflow: hidden; }

/* Adjunto: se ve QUÉ está adjunto y se puede quitar sin recargar. */
.doc-chip {
  display: inline-block; max-width: 34ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  border: 1px solid var(--accent); border-radius: 999px; padding: 3px 10px;
  font-size: 0.75rem; color: var(--accent);
}
.context-note { font-size: 0.78rem; }

/* Aviso de almacenamiento no persistente: visible, no un console.log. */
.storage-warning {
  border: 1px solid var(--accent); border-left-width: 3px; padding: 8px 10px; margin: 0 0 12px;
  font-size: 0.78rem; color: var(--ink); background: var(--card);
}

/* Método / límites */
.limits-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.limits-list li { border-left: 2px solid var(--hairline); padding-left: 16px; color: var(--muted); font-size: 0.95rem; }
.sources { margin-top: 22px; font-size: 0.85rem; color: var(--muted); }
.noscript { border: 1px solid var(--accent); padding: 14px; margin-bottom: 30px; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--hairline); padding: 34px 0; text-align: center; color: var(--muted); font-size: 0.85rem; }
footer .heart { color: var(--accent); }
footer .colophon { margin-top: 6px; font-family: var(--serif); font-style: italic; color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 899px) {
  /* En ESTA página los tres enlaces del menú siguen visibles en móvil: si no,
     desde /ia-local no habría forma de volver al blog sin ir a la portada. */
  nav.main-nav { gap: 14px; }
  nav.main-nav a { font-size: 0.7rem; letter-spacing: 0.06em; }
  .chat-layout { grid-template-columns: 1fr; }
  .chat-side { position: static; }
}
@media (max-width: 560px) {
  .container { padding: 0 20px; }
  .nav { padding: 0 20px; }
  section { padding: 52px 0; }
  .cta-row .btn { width: 100%; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .msg.pending .msg-body::after { animation: none; }
}