/* ============================================================
   Lista de la Compra Inteligente — Dark Theme
   ============================================================ */

:root {
  --bg:          #0d1117;
  --bg-card:     #161b22;
  --bg-hover:    #1c2128;
  --bg-input:    #0d1117;
  --border:      #30363d;
  --text:        #e6edf3;
  --text-muted:  #8b949e;
  --primary:     #388bfd;
  --primary-h:   #58a6ff;

  /* badges */
  --badge-sem-bg:  #3d2b1f;
  --badge-sem-tx:  #f0883e;
  --badge-qui-bg:  #2d2816;
  --badge-qui-tx:  #d29922;
  --badge-men-bg:  #162518;
  --badge-men-tx:  #3fb950;
  --badge-esp-bg:  #21262d;
  --badge-esp-tx:  #8b949e;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

h1 { font-size: 1.6rem; margin: 0 0 .25rem; color: var(--text); }
h2 {
  font-size: .85rem;
  margin: 1.5rem 0 .5rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
}

.subtitle { color: var(--text-muted); font-size: .85rem; margin-bottom: 1.5rem; }

/* ---- Layout ---- */
.layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 700px) {
  .layout { grid-template-columns: 1fr; }
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.card-header {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: .75rem;
}
.card-header strong { color: var(--text); font-size: .95rem; }

/* ---- Badges ---- */
.badge {
  display: inline-block;
  padding: .2rem .6rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 600;
}
.badge-rojo    { background: var(--badge-sem-bg); color: var(--badge-sem-tx); }
.badge-naranja { background: var(--badge-qui-bg); color: var(--badge-qui-tx); }
.badge-verde   { background: var(--badge-men-bg); color: var(--badge-men-tx); }
.badge-gris    { background: var(--badge-esp-bg); color: var(--badge-esp-tx); }

/* ---- Producto item ---- */
.prod-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .45rem .25rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  border-radius: 4px;
  transition: background .1s;
}
.prod-item:last-child { border-bottom: none; }
.prod-item:hover { background: var(--bg-hover); }
.prod-item input[type="checkbox"] {
  width: 15px;
  height: 15px;
  cursor: pointer;
  flex-shrink: 0;
  accent-color: var(--primary);
}
.prod-nombre { flex: 1; font-size: .92rem; color: var(--text); }
.prod-nombre.tachado { text-decoration: line-through; color: var(--text-muted); }
.prod-freq { font-size: .72rem; color: var(--text-muted); white-space: nowrap; }

/* ---- Panel lateral ---- */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  position: sticky;
  top: 1rem;
}
.panel h2 { margin-top: 0; }

#listaGenerada {
  width: 100%;
  height: 220px;
  font-size: .88rem;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .6rem;
  resize: vertical;
  font-family: inherit;
}
#listaGenerada:focus { outline: none; border-color: var(--primary); }

/* ---- Botones ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .5rem 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: .88rem;
  font-weight: 500;
  transition: background .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-h); }
.btn-secondary {
  background: #21262d;
  color: var(--text);
  border: 1px solid var(--border);
  margin-left: .4rem;
}
.btn-secondary:hover { background: #30363d; }
.btn-sm { padding: .3rem .7rem; font-size: .8rem; }

/* ---- Toolbar ---- */
.toolbar {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

/* ---- Input añadir manual ---- */
.add-row { display: flex; gap: .5rem; margin-top: .5rem; }
.add-row input {
  flex: 1;
  padding: .42rem .7rem;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .88rem;
}
.add-row input:focus { outline: none; border-color: var(--primary); }

/* ---- Sin datos ---- */
.no-datos {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.no-datos code {
  display: block;
  background: var(--bg);
  color: var(--primary-h);
  border: 1px solid var(--border);
  padding: .5rem 1rem;
  border-radius: 6px;
  margin: .75rem auto;
  width: fit-content;
  font-size: .9rem;
}

/* ---- Drag & drop zona ticket ---- */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 1.2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: .85rem;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  margin-top: .5rem;
  position: relative;
}
.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--primary);
  background: #0d2044;
  color: var(--text);
}
.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.drop-zone-icon { font-size: 1.5rem; display: block; margin-bottom: .3rem; }

#pdfTexto {
  white-space: pre-wrap;
  background: var(--bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: .75rem;
  border-radius: 6px;
  font-size: .78rem;
  max-height: 250px;
  overflow-y: auto;
  display: none;
  margin-top: .75rem;
  font-family: 'Courier New', monospace;
}

/* ---- Count badge ---- */
.count-badge {
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 700;
  margin-left: .4rem;
  vertical-align: middle;
}

/* ---- Scrollbar oscura ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ---- Login page ---- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}
.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 360px;
}
.login-card h1 { font-size: 1.4rem; margin-bottom: .25rem; }
.login-card label {
  display: block;
  font-size: .82rem;
  color: var(--text-muted);
  margin: .75rem 0 .25rem;
  font-weight: 600;
}
.login-card input {
  width: 100%;
  padding: .5rem .75rem;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .92rem;
}
.login-card input:focus { outline: none; border-color: var(--primary); }
.alert {
  background: #3d1f1f;
  color: #f47f7f;
  border: 1px solid #7d2020;
  border-radius: 6px;
  padding: .5rem .75rem;
  font-size: .85rem;
  margin-top: .5rem;
}