:root{--bg:#0f172a;--card:#111827;--muted:#94a3b8;--txt:#f8fafc;--acc:#22d3ee;--border:#1f2937;--pos:#22c55e;--neg:#ef4444;--warn:#facc15}
*{box-sizing:border-box}
body{margin:0;font:14px/1.45 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu;background:var(--bg);color:var(--txt)}
.wrap{max-width:1280px;margin:24px auto;padding:0 16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px;margin-bottom:16px}
h1{margin:0 0 10px;font-size:20px}
.muted{color:var(--muted)}
textarea,input[type=text],input[type=password]{width:100%;border-radius:12px;border:1px solid var(--border);padding:10px 12px;background:#0b1220;color:#e5e7eb}
textarea{min-height:120px}
.row{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}.row>*{flex:1 1 260px}
.btn{appearance:none;border:none;border-radius:12px;padding:10px 16px;cursor:pointer;font-weight:600;background:var(--acc);color:#001018}
.btn-danger{background:#ef4444;color:#fff}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;border:1px solid var(--border);color:#94a3b8;margin-right:6px}
.table-wrap{overflow:auto} table{width:100%;border-collapse:separate;border-spacing:0;min-width:1200px}
th,td{padding:8px 10px;border-bottom:1px solid var(--border);vertical-align:top} th{position:sticky;top:0;background:#0b1220;text-align:left;cursor:pointer;user-select:none}
.mono{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.filters{display:flex;gap:12px;flex-wrap:wrap;margin:10px 0}
.muted-small{color:var(--muted);font-size:12px}
.pos{color:var(--pos);font-weight:600}
.neg{color:var(--neg);font-weight:600}
.btns{display:flex;gap:10px;flex-wrap:wrap}
.isin-ok{color:var(--pos);font-weight:700}
.isin-bad{color:var(--neg);font-weight:700}
.isin-warn{color:var(--warn);font-weight:700}
.price-col,.price-cell,.barrier-col,.barrier-cell{font-weight:700}
.between-warn{background:rgba(250,204,21,.25)}
.sort-ind{opacity:.6;margin-left:6px;font-size:11px}
.hide{display:none}
a.link{color:#7dd3fc;text-decoration:none}
details>summary{list-style:none}
details>summary::-webkit-details-marker{display:none}
/* Stile per i dropdown filtri */
.filters select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 10px 12px;
  background: #0b1220; /* stesso sfondo degli input */
  color: #e5e7eb;      /* stesso colore del testo */
  font-size: 14px;
  appearance: none;
  text-transform: uppercase; /* forza tutto in maiuscolo */
}

.filters select:focus {
  outline: none;
  border-color: var(--acc);
  box-shadow: 0 0 0 2px rgba(34,211,238,0.3);
}

.filters label {
  display: inline-block;
  margin-right: 12px;
  margin-bottom: 8px;
}


/* Evita qualsiasi bianco nei form di login/registrazione */
form { background: transparent; }

/* separazione visiva tra login e registrazione */
.auth-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0; /* niente gap, ci pensa il bordo */
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden; /* per bordi continui */
}
@media (max-width: 860px) {
  .auth-grid { grid-template-columns: 1fr; }
}

.auth-card {
  padding: 16px;
}
.auth-card:first-child {
  border-right: 1px solid #fff; /* bordo elegante, bianco */
}
@media (max-width: 860px) {
  .auth-card:first-child {
    border-right: none;
    border-bottom: 1px solid #fff;
  }
}

/* hover su tutti i bottoni */
.btn, .btn-danger, .btn-success {
  transition: box-shadow 0.2s ease, transform 0.1s ease;
}
.btn:hover, .btn-danger:hover, .btn-success:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--pos);
  color: #fff;
}
.btn-success:hover {
  filter: brightness(1.1);
  box-shadow: 0 2px 6px rgba(0,0,0,.35);
}

.isin-warn{color:var(--warn);font-weight:700}


/* === Loading overlay (anti-flicker) === */
.loading-overlay{
  position: fixed;
  inset: 0;
  /* sempre presente, ma invisibile: niente reflow = niente flash */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  display: flex;
  align-items: center;
  justify-content: center;

  /* fondo costante, leggermente scuro */
  background: rgba(0,0,0,.55);

  /* transizione morbida e stabile */
  transition: opacity .12s linear, visibility .12s linear;

  /* forza compositing GPU per evitare sfarfallii */
  will-change: opacity;
  backface-visibility: hidden;
  transform: translateZ(0);
  z-index: 9999;
}
.loading-overlay.show{
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.loading-box{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
}
.loading-gif{
  width: 72px;
  height: 72px;
  display: block;
  margin: 0 auto;
  background: transparent;          /* evita ‘flash’ chiari dietro la GIF */
  image-rendering: -webkit-optimize-contrast;
}