/* ============================================================
   UtilsBox — QR Generator specific styles
   Inherits shared layout from global.css
   ============================================================ */

/* ── TYPE TABS ── */
.type-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 26px;
}
.tab {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 8px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  text-align: center;
  font-family: var(--font-main);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
}
.tab .tab-icon { font-size: 1.2rem; display: block; margin-bottom: 5px; }
.tab:hover     { border-color: var(--accent); color: var(--text); }
.tab.active {
  background: rgba(124,106,255,0.12);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 20px rgba(124,106,255,0.1);
}

/* ── COLOR FIELDS ── */
.color-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.color-field {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  transition: border-color 0.2s;
}
.color-field:hover { border-color: var(--accent); }
.color-field input[type="color"] {
  width: 26px; height: 26px;
  border: none; background: none;
  padding: 0; cursor: pointer; border-radius: 6px;
}
.color-field span {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
}

/* ── ERROR CORRECTION ── */
.ec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.ec-btn {
  padding: 8px 4px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.ec-btn:hover  { border-color: var(--accent3); color: var(--text); }
.ec-btn.active {
  background: rgba(106,255,212,0.1);
  border-color: var(--accent3);
  color: var(--accent3);
}

/* ── QR PREVIEW ── */
.qr-canvas-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  min-height: 280px;
}
#qr-output { border-radius: 12px; overflow: hidden; transition: all 0.3s; }
#qr-output canvas, #qr-output img { display: block; }

.empty-state {
  text-align: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.8;
}
.empty-state .big { font-size: 3rem; display: block; margin-bottom: 12px; opacity: 0.3; }

/* ── DOWNLOAD ROW ── */
.download-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 0 24px 24px;
}
.btn-dl {
  padding: 11px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.btn-dl:hover     { border-color: var(--accent);  color: var(--accent);  background: rgba(124,106,255,0.08); }
.btn-dl.svg-btn:hover { border-color: var(--accent2); color: var(--accent2); background: rgba(255,106,155,0.08); }

@media (max-width: 640px) {
  .type-tabs { grid-template-columns: repeat(2, 1fr); }
  .color-row { grid-template-columns: 1fr; }
}