/* ==========================================================================
   Paleta institucional — H. Ayuntamiento de Balancán 2024-2027
   --------------------------------------------------------------------------
   Colores extraídos del escudo oficial (verde-azulado del tren/franja
   inferior + dorado del contorno) y del manual de identidad de la
   administración 2024-2027. Para ajustar tonos en el futuro, cambia SOLO
   las variables de este bloque; el resto de la hoja de estilos las usa en
   automático.
   ========================================================================== */
:root {
  --color-primary: #13605b;       /* verde-azulado institucional (encabezado, botones) */
  --color-primary-dark: #0b3b38;  /* variante oscura (hover, degradados) */
  --color-accent: #cca850;        /* dorado del escudo (detalles, acentos, hover en tarjetas) */
  --color-accent-light: #e6cd8f;
  --color-bg: #f7f7f7;            /* fondo general */
  --color-surface: #ffffff;       /* tarjetas */
  --color-text: #3a3a3a;
  --color-text-muted: #6d7573;
  --color-border: #e4e2da;
  --color-especifica: #13605b;
  --color-generica: #705c2c;
  --radius: 14px;
  --shadow-card: 0 1px 3px rgba(19,96,91,0.08), 0 8px 24px -12px rgba(19,96,91,0.18);
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  -webkit-font-smoothing: antialiased;
}

/* ---------------- Header ---------------- */
.app-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border-bottom: 4px solid var(--color-accent);
}
.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  background: #fff;
  border-radius: 50%;
  padding: 3px;
  flex-shrink: 0;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-title { font-weight: 800; font-size: 1.05rem; letter-spacing: .2px; }
.brand-subtitle { font-size: .8rem; color: var(--color-accent-light); font-weight: 500; }

.main-nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav-btn {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s ease, transform .1s ease;
}
.nav-btn:hover { background: rgba(255,255,255,0.18); }
.nav-btn.active { background: var(--color-accent); border-color: var(--color-accent); color: #241c02; }

/* ---------------- Layout ---------------- */
.container { max-width: 1080px; margin: 0 auto; padding: 28px 20px 60px; }
.view { display: none; }
.view.active { display: block; animation: fadein .18s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.search-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 30px 32px 34px;
  border: 1px solid var(--color-border);
}
.search-card h1 { margin: 0 0 8px; font-size: 1.4rem; color: var(--color-primary-dark); }
.lead { margin: 0 0 22px; color: var(--color-text-muted); line-height: 1.55; max-width: 720px; }
.lead em { color: var(--color-text); font-style: normal; background: #fff6dd; padding: 1px 5px; border-radius: 4px; }

/* ---------------- Search box ---------------- */
.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  padding: 4px 6px 4px 16px;
  background: #fbfbfa;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(19,96,91,0.10);
  background: #fff;
}
.search-icon { color: var(--color-text-muted); flex-shrink: 0; }
#buscador {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 1.05rem;
  padding: 12px 0;
  color: var(--color-text);
  font-family: inherit;
}
#buscador::placeholder { color: #9aa39c; }
.btn-clear {
  border: none;
  background: var(--color-border);
  color: var(--color-text-muted);
  width: 30px; height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: .9rem;
  flex-shrink: 0;
}
.btn-clear:hover { background: #d3d7cf; }

/* ---------------- Chips sugeridos ---------------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.chip {
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-primary-dark);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: .82rem;
  cursor: pointer;
  font-weight: 600;
  transition: all .12s ease;
}
.chip:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ---------------- Estado / resultados ---------------- */
.estado-busqueda {
  margin-top: 18px;
  color: var(--color-text-muted);
  font-size: .9rem;
}
.resultados { margin-top: 20px; display: flex; flex-direction: column; gap: 14px; }

.resultado-card {
  border: 1px solid var(--color-border);
  border-left: 5px solid var(--color-especifica);
  border-radius: 10px;
  padding: 16px 18px;
  background: #fff;
  transition: box-shadow .15s ease, transform .1s ease;
}
.resultado-card:hover { box-shadow: 0 6px 20px -10px rgba(19,96,91,0.35); }
.resultado-card.tipo-generica { border-left-color: var(--color-generica); }

.resultado-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.badge-tipo {
  font-size: .68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(19,96,91,0.1);
  color: var(--color-especifica);
}
.resultado-card.tipo-generica .badge-tipo { background: rgba(112,92,44,0.14); color: var(--color-generica); }
.resultado-codigo {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-weight: 700;
  font-size: .95rem;
  color: var(--color-text);
  background: #f1f2ef;
  padding: 2px 9px;
  border-radius: 6px;
}
.btn-copiar {
  margin-left: auto;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-primary-dark);
  font-size: .76rem;
  font-weight: 700;
  padding: 5px 11px;
  border-radius: 8px;
  cursor: pointer;
}
.btn-copiar:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-copiar.copiado { background: var(--color-accent); color: #241c02; border-color: var(--color-accent); }

.resultado-nombre { margin: 4px 0 8px; font-size: 1.08rem; color: var(--color-primary-dark); }
.resultado-uso { margin: 0 0 8px; font-size: .92rem; line-height: 1.5; color: var(--color-text); }
.resultado-uso strong { color: var(--color-text-muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .03em; display: block; margin-bottom: 2px; }
.resultado-ruta { margin: 0; font-size: .78rem; color: var(--color-text-muted); }
.resultado-historico {
  margin: 8px 0 0;
  padding: 6px 10px;
  font-size: .78rem;
  line-height: 1.4;
  color: var(--color-generica);
  background: rgba(112,92,44,0.08);
  border-radius: 8px;
}
.resultado-historico strong { color: var(--color-generica); }

.aviso-multiuso {
  border: 1px solid var(--color-accent);
  background: rgba(204,168,80,0.12);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 14px;
  font-size: .85rem;
  line-height: 1.5;
  color: var(--color-text);
}
.aviso-multiuso strong { color: var(--color-primary-dark); }

.sin-resultados {
  text-align: center;
  padding: 30px 10px;
  color: var(--color-text-muted);
}

/* ---------------- Explorar catálogo ---------------- */
.arbol-catalogo { margin-top: 10px; }
details.capitulo {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  margin-bottom: 10px;
  overflow: hidden;
}
details.capitulo > summary {
  padding: 13px 16px;
  cursor: pointer;
  font-weight: 700;
  color: var(--color-primary-dark);
  background: #f4f6f2;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
details.capitulo > summary::-webkit-details-marker { display: none; }
details.capitulo > summary::before {
  content: "▸";
  color: var(--color-accent);
  font-size: .9rem;
  transition: transform .15s ease;
}
details.capitulo[open] > summary::before { transform: rotate(90deg); }
.cap-count { margin-left: auto; font-size: .75rem; font-weight: 600; color: var(--color-text-muted); }

.concepto-block { padding: 10px 16px 16px 34px; }
.concepto-block h4 { margin: 12px 0 8px; font-size: .92rem; color: var(--color-generica); }
.concepto-block h4:first-child { margin-top: 4px; }
.partida-item {
  display: flex;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: .87rem;
  cursor: pointer;
}
.partida-item:last-child { border-bottom: none; }
.partida-item:hover .partida-item-nombre { color: var(--color-primary); text-decoration: underline; }
.partida-item-codigo {
  font-family: Consolas, Menlo, monospace;
  font-weight: 700;
  color: var(--color-text-muted);
  min-width: 52px;
}

/* ---------------- Acerca ---------------- */
.about-list { line-height: 1.7; padding-left: 20px; color: var(--color-text); }
.about-list li { margin-bottom: 10px; }
.about-list code { background: #f1f2ef; padding: 1px 6px; border-radius: 5px; font-size: .85em; }
.footnote { margin-top: 20px; font-size: .82rem; color: var(--color-text-muted); border-top: 1px solid var(--color-border); padding-top: 14px; }

/* ---------------- Footer ---------------- */
.app-footer {
  text-align: center;
  padding: 22px 16px 34px;
  color: var(--color-text-muted);
  font-size: .78rem;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 640px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .main-nav { width: 100%; }
  .nav-btn { flex: 1; text-align: center; }
  .search-card { padding: 22px 18px 26px; }
  .search-card h1 { font-size: 1.2rem; }
  .concepto-block { padding-left: 18px; }
}