:root {
  --blau: #1F4E78;
  --blau-clar: #3498db;
  --fosc: #2c3e50;
  --fons: #ecf0f1;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--fons);
  color: #2c3e50;
}
header {
  background: var(--fosc);
  color: #fff;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
header img { height: 48px; }
header h1 { font-size: 1.25rem; margin: 0; color: var(--blau-clar); }
header p { margin: 2px 0 0; font-size: 0.85rem; color: #bdc3c7; }
main { max-width: 920px; margin: 24px auto; padding: 0 16px; }
.card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  padding: 22px;
  margin-bottom: 20px;
}
.avis {
  background: #fff8e1;
  border-left: 4px solid #f9a825;
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.avis strong { color: #c77700; }
.dropzone {
  border: 2px dashed var(--blau-clar);
  border-radius: 10px;
  padding: 28px;
  text-align: center;
  cursor: pointer;
  transition: background .15s, border-color .15s;
  background: #f8fbff;
  display: block;
}
.dropzone.dragover { background: #e3f0fb; border-color: var(--blau); }
.dropzone.carregat { background: #eafaf1; border-color: #27ae60; }
.dropzone p { margin: 6px 0; color: #555; }
.dropzone .big { font-size: 2.2rem; }
.dropzone .titol { font-weight: bold; color: var(--blau); }
input[type=file] { display: none; }
button {
  background: var(--blau);
  color: #fff;
  border: none;
  padding: 12px 22px;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: background .15s;
}
button:hover:not(:disabled) { background: #163a5a; }
button:disabled { background: #95a5a6; cursor: not-allowed; }
.botonera { display: flex; gap: 12px; align-items: center; margin-top: 16px; flex-wrap: wrap; }
#log {
  background: #1e272e;
  color: #dfe6e9;
  font-family: Consolas, monospace;
  font-size: 0.82rem;
  padding: 14px;
  border-radius: 8px;
  height: 180px;
  overflow-y: auto;
  white-space: pre-wrap;
  margin-top: 16px;
}
.progress-wrap {
  background: #d6e0ea;
  border-radius: 6px;
  height: 14px;
  overflow: hidden;
  margin-top: 14px;
  display: none;
}
.progress-bar {
  background: var(--blau-clar);
  height: 100%;
  width: 0%;
  transition: width .2s;
}
.stats { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 16px; }
.stat {
  background: var(--blau);
  color: #fff;
  border-radius: 8px;
  padding: 14px 20px;
  text-align: center;
  flex: 1;
  min-width: 110px;
}
.stat .num { font-size: 1.7rem; font-weight: bold; display: block; }
.stat .lbl { font-size: 0.78rem; opacity: .85; }
table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 0.82rem; }
th, td { border: 1px solid #ddd; padding: 6px 8px; text-align: left; }
th { background: var(--blau); color: #fff; position: sticky; top: 0; }
tr:nth-child(even) { background: #f7f9fb; }
.taula-wrap { max-height: 360px; overflow: auto; margin-top: 8px; }
.hidden { display: none; }
footer { text-align: center; font-size: 0.8rem; color: #7f8c8d; padding: 20px; }
#carregant { font-size: 0.9rem; color: var(--blau); }

/* Navegació */
.nav-back {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--blau);
  text-decoration: none;
  font-size: 0.9rem;
}
.nav-back:hover { text-decoration: underline; }

/* Launcher (menú principal) */
.launcher-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.launcher-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  padding: 28px;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: transform .12s, box-shadow .12s;
  border-top: 4px solid var(--blau-clar);
}
.launcher-card:hover { transform: translateY(-3px); box-shadow: 0 6px 18px rgba(0,0,0,0.14); }
.launcher-card .ico { font-size: 2.6rem; }
.launcher-card h2 { margin: 10px 0 6px; color: var(--blau); font-size: 1.2rem; }
.launcher-card p { margin: 0; font-size: 0.9rem; color: #555; }

/* Opcions (radio) */
.opcions { margin-top: 16px; }
.opcions label {
  display: block;
  padding: 8px 10px;
  border: 1px solid #d6e0ea;
  border-radius: 6px;
  margin-bottom: 8px;
  cursor: pointer;
  font-size: 0.92rem;
}
.opcions label:hover { background: #f3f8fc; }
.opcions input { margin-right: 8px; }
.file-nom { font-size: 0.85rem; color: #27ae60; margin-top: 4px; min-height: 1em; }