.sxqr-wrap{
  --sxqr-card:#0f172a;
  --sxqr-border:rgba(255,255,255,.10);
  --sxqr-text:#e5e7eb;
  --sxqr-muted:#93a4bf;
  --sxqr-accent:#22c55e;
  --sxqr-accent2:#38bdf8;
  --sxqr-input:#0b1324;
  --sxqr-white:#ffffff;
  --sxqr-radius:18px;

  font-family: system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color: var(--sxqr-text);
  width: 100%;
  padding: 14px 0;
}

.sxqr-card{
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  background: radial-gradient(1200px 380px at 20% 0%, rgba(56,189,248,.18), transparent 55%),
              radial-gradient(900px 320px at 80% 10%, rgba(34,197,94,.16), transparent 55%),
              linear-gradient(180deg, rgba(15,23,42,.98), rgba(2,6,23,.98));
  border: 1px solid var(--sxqr-border);
  border-radius: var(--sxqr-radius);
  box-shadow: 0 24px 70px rgba(0,0,0,.38);
  overflow: visible; /* allow sticky preview on desktop */
}

.sxqr-head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 12px;
  padding: 18px 18px 12px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.sxqr-brand .sxqr-title{
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 900;
  letter-spacing: .2px;
  display:block;
  line-height: 1.2;
}
.sxqr-brand .sxqr-sub{
  font-size: 12px;
  color: var(--sxqr-muted);
  display:block;
  margin-top: 6px;
  line-height: 1.35;
}

.sxqr-tabs{
  display:flex;
  gap:10px;
  padding: 12px 18px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
}

.sxqr-tab{
  appearance:none;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.03);
  color: var(--sxqr-text);
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 900;
  cursor:pointer;
  min-height: 44px;
  min-width: 110px;
}
.sxqr-tab.is-active{
  background: linear-gradient(90deg, rgba(34,197,94,.35), rgba(56,189,248,.22));
  border-color: rgba(56,189,248,.35);
  box-shadow: 0 0 0 3px rgba(56,189,248,.14);
}

.sxqr-grid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 16px;
  padding: 16px;
  align-items: start;
}

@media (max-width: 1024px){
  .sxqr-grid{
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

@media (max-width: 560px){
  .sxqr-wrap{ padding: 10px 0; }
  .sxqr-head{ padding: 14px 12px 10px; }
  .sxqr-tabs{ padding: 10px 12px; }
  .sxqr-grid{ padding: 12px; }
  .sxqr-tab{ min-width: 0; flex: 1; }
}

/* Controls */
.sxqr-controls{ padding: 0 2px 2px; }

.sxqr-panel{ display:none; }
.sxqr-panel.is-active{ display:block; }

.sxqr-section{
  padding: 14px;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 16px;
  background: rgba(255,255,255,.02);
  margin-bottom: 12px;
}

.sxqr-section-title{
  font-weight: 900;
  margin-bottom: 10px;
  font-size: 14px;
}

.sxqr-row{ margin-bottom: 12px; }

.sxqr-row-2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.sxqr-row-3{
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

@media (max-width: 720px){
  .sxqr-row-2, .sxqr-row-3{ grid-template-columns: 1fr; }
}

.sxqr-label{
  display:block;
  font-size: 12px;
  color: var(--sxqr-muted);
  margin-bottom: 6px;
  font-weight: 800;
}

.sxqr-input{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(11,19,36,.78);
  color: var(--sxqr-text);
  outline: none;
  min-height: 44px; /* better touch targets */
  font-size: 14px;
}

.sxqr-input:focus{
  border-color: rgba(56,189,248,.55);
  box-shadow: 0 0 0 4px rgba(56,189,248,.16);
}

.sxqr-textarea{
  min-height: 96px;
  resize: vertical;
}

.sxqr-help{
  font-size: 12px;
  color: var(--sxqr-muted);
  margin-top: 6px;
  line-height: 1.35;
}

.sxqr-color{ height: 46px; padding: 8px; }

.sxqr-type{ display:none; }
.sxqr-type.is-active{ display:block; }

/* Actions */
.sxqr-actions{
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
}

@media (max-width: 720px){
  .sxqr-actions{ grid-template-columns: 1fr; }
}

.sxqr-btn{
  appearance:none;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.04);
  color: var(--sxqr-text);
  padding: 12px 14px;
  border-radius: 14px;
  font-weight: 900;
  cursor:pointer;
  min-height: 46px;
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}
.sxqr-btn:hover{
  transform: translateY(-1px);
  border-color: rgba(56,189,248,.35);
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.sxqr-generate{
  background: linear-gradient(90deg, rgba(34,197,94,.40), rgba(56,189,248,.24));
  border-color: rgba(34,197,94,.40);
}

.sxqr-note{
  margin-top: 10px;
  font-size: 12px;
  color: var(--sxqr-muted);
}

/* Preview */
.sxqr-preview{
  display:flex;
  flex-direction:column;
  gap: 12px;
}

.sxqr-preview-box{
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  background: rgba(255,255,255,.02);
  padding: 14px;
}

/* Sticky preview on desktop for better UX */
@media (min-width: 1025px){
  .sxqr-preview-box{
    position: sticky;
    top: 18px;
  }
}

.sxqr-preview-title{
  font-weight: 950;
  margin-bottom: 10px;
  font-size: 18px;
}

.sxqr-preview-area{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(0,0,0,.26);
  border: 1px dashed rgba(255,255,255,.16);
}

.sxqr-qr-area{
  width: 100%;
  display:flex;
  justify-content:center;
  align-items:center;
}

/* Make generated QR scale nicely inside preview */
.sxqr-qr-area canvas,
.sxqr-qr-area img,
.sxqr-qr-area svg{
  max-width: min(420px, 100%);
  width: 100%;
  height: auto;
  border-radius: 10px;
  background: #fff;
  padding: 10px;
}

.sxqr-caption{
  font-size: 13px;
  font-weight: 900;
  text-align:center;
  color: var(--sxqr-white);
}

.sxqr-preview-foot{
  margin-top: 10px;
  font-size: 12px;
  color: var(--sxqr-muted);
  line-height: 1.35;
}

.sxqr-mini{
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  background: rgba(255,255,255,.02);
  padding: 14px;
}
.sxqr-mini-title{
  font-weight: 950;
  margin-bottom: 8px;
  font-size: 14px;
}
.sxqr-mini-list{
  margin: 0;
  padding-left: 18px;
  color: var(--sxqr-muted);
  font-size: 12px;
  line-height: 1.65;
}

.sxqr-gradient-row.is-hidden{ display:none; }

.sxqr-barcode-wrap{ width: 100%; }
.sxqr-barcode{
  width: 100%;
  max-width: 860px;
  background: #fff;
  border-radius: 12px;
  padding: 12px;
}

/* Small quality improvements */
.sxqr-wrap *{ box-sizing: border-box; }