* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg,#6366f1,#22c55e);
  color:#0f172a;
}

.app {
  width: 100%;
  padding: 20px;
  display: flex;
  justify-content: center;
}

.card{
background:rgba(255,255,255,0.2);
backdrop-filter:blur(20px);
-webkit-backdrop-filter:blur(20px);
border:1px solid rgba(255,255,255,0.3);
max-width:1280px;
width:100%;
padding:32px;
border-radius:20px;
box-shadow:0 20px 60px rgba(0,0,0,0.2);
}

.title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 6px;
  text-align: center;
  background: linear-gradient(135deg, #fdfbff 0%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 1.25rem;
  text-align: center;
  color: #02060e;
  margin-bottom: 24px;
}

/* Segmented Tabs UI */

.nav-tabs{
display:flex;
align-items:center;
gap:0;
background:#e5e7eb;
padding:4px;
border-radius:12px;
margin-bottom:24px;
overflow-x:auto;
}

.nav-tab{
padding:8px 18px;
border:none;
background:transparent;
color:#374151;
font-size:0.9rem;
font-weight:600;
cursor:pointer;
border-radius:8px;
transition:all .25s ease;
white-space:nowrap;
}

.nav-tab:hover{
color:#111827;
}

.nav-tab.active{
background:white;
color:#111827;
box-shadow:0 2px 6px rgba(0,0,0,0.15);
}

.primary-btn{
background:linear-gradient(135deg,#6366f1,#22c55e);
color:white;
box-shadow:0 10px 30px rgba(0,0,0,0.2);
transition:all .25s ease;
}

.primary-btn:hover{
transform:translateY(-2px);
box-shadow:0 15px 40px rgba(0,0,0,0.3);
}

.nav-tab:hover{
color:#111827;
}

.nav-tab.active{
background:white;
color:#111827;
box-shadow:0 2px 6px rgba(0,0,0,0.15);
}

.field-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #434d5b;
  margin-bottom: 6px;
}

.text-input {
  width: 100%;
  padding: 10px 11px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  margin-bottom: 12px;
}

.text-input:focus {
  border-color: #677ee7;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 14px;
  margin-bottom: 8px;
  margin-top: 2px;
}

.options-row.wide {
  grid-column: 1 / -1;
}

.small-label {
  font-size: 0.78rem;
  margin-bottom: 4px;
}

.type-row {
  margin-bottom: 10px;
}

.type-select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  background: #ffffff;
  font-size: 0.9rem;
}

.type-fields {
  margin-bottom: 10px;
}

.hidden {
  display: none;
}

.tab-content {
  margin-bottom: 16px;
}

.gradient-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tiny-label {
  font-size: 0.78rem;
  color: #46505e;
  display: flex;
  align-items: center;
  gap: 4px;
}

.small-select {
  font-size: 0.8rem;
}

.small-color {
  height: 32px;
}

.color-input {
  width: 100%;
  height: 36px;
  border-radius: 999px;
  border: 1px solid #d1d5db;
  background: #f3f4f6;
  cursor: pointer;
  padding: 2px 6px;
}

#qr-size {
  width: 100%;
  cursor: pointer;
}

.size-value {
  font-size: 0.75rem;
  color: #5a5f6b;
  margin-left: 4px;
}

.logo-upload {
  margin-bottom: 12px;
}

.file-input {
  width: 100%;
  padding: 7px 10px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  background: #ffffff;
  font-size: 0.8rem;
  cursor: pointer;
}

.file-input::file-selector-button {
  padding: 6px 10px;
  margin-right: 8px;
  border-radius: 999px;
  border: none;
  background: #e5e7eb;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.templates-row {
  margin: 10px 0 6px;
}

.templates-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: #4a5360;
  margin-bottom: 4px;
}

.templates-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.template-btn {
  flex: 1;
  min-width: 0;
  padding: 6px 10px;
  border-radius: 999px;
  border: none;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  background: #e5e7eb;
  color: #111827;
  transition: background-color 0.15s ease, transform 0.08s ease;
}

.template-btn:hover {
  background: #cfd2d7;
}

.btn {
  width: 100%;
  padding: 12px 16px;
  border-radius: 999px;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.08s ease,
    box-shadow 0.15s ease, color 0.15s ease;
  margin-top: 4px;
}

.btn:active {
  transform: translateY(1px);
  box-shadow: none;
}

.primary-btn{
background:linear-gradient(135deg,#6366f1,#22c55e);
color:white;
box-shadow:0 10px 30px rgba(0,0,0,0.2);
transition:all .25s ease;
}

.primary-btn:hover{
transform:translateY(-2px);
box-shadow:0 15px 40px rgba(0,0,0,0.3);
}

.primary-btn:hover {
  background: linear-gradient(135deg, #5568d3 0%, #6a3f8f 100%);
  box-shadow: 0 12px 30px rgba(102, 126, 234, 0.5);
}

.secondary-btn {
  background: #e5e7eb;
  color: #111827;
  margin-top: 10px;
}

.secondary-btn:hover:not(:disabled) {
  background: #d1d5db;
}

.secondary-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.toggle-switches {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
  padding: 16px;
  background: #f3f4f6;
  border-radius: 12px;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: #374151;
  cursor: pointer;
}

.toggle-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.signup-section {
  margin-top: 20px;
  padding: 16px;
  background: #f3f4f6;
  border-radius: 12px;
}

.signup-btn {
  background: linear-gradient(135deg, #637be7 0%, #764ba2 100%);
  color: #ffffff;
  margin-top: 8px;
}

.signup-btn:hover {
  background: linear-gradient(135deg, #5567ce 0%, #6a3f8f 100%);
}

.download-section {
  margin-top: 16px;
}

.preview-wrapper {
  margin-top: 14px;
  display: flex;
  justify-content: center;
}

.qr-frame {
  padding: 10px 14px 12px;
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: background-color 0.15s ease, border-color 0.15s ease,
    border-radius 0.15s ease, transform 0.15s ease;
}

.qr-frame-none {
  padding: 0;
  background: transparent;
  border: none;
}

.qr-frame-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
}

.qr-frame-pill {
  background: #111827;
  border-radius: 999px;
}

.qr-frame-tag {
  background: #111827;
  border-radius: 24px;
}

.qr-preview {
  width: 260px;
  height: 260px;
  background: #ffffff;
  border-radius: 16px;
  border: 2px solid #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.frame-caption {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #111827;
}

.qr-frame-pill .frame-caption,
.qr-frame-tag .frame-caption {
  color: #f9fafb;
}

.qr-preview canvas {
  max-width: 100%;
  max-height: 100%;
}

.placeholder-text {
  font-size: 0.85rem;
  color: #9ca3af;
  text-align: center;
  padding: 0 12px;
}

.hint {
  margin-top: 14px;
  font-size: 0.8rem;
  text-align: center;
  color: #6b7280;
}

.download-row {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.dashboard {
  display: grid;
  grid-template-columns: 280px 1fr 320px;
  gap: 24px;
  align-items: flex-start;
}

.saved-list {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.saved-item {
  border-radius: 12px;
  border: 1px solid #e5e7eb;
  padding: 10px 10px 12px;
  background: #ffffff;
}

.saved-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}

.saved-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #111827;
}

.saved-date {
  font-size: 0.7rem;
  color: #9ca3af;
}

.saved-preview {
  display: flex;
  justify-content: flex-start;
  gap: 10px;
  align-items: center;
  margin-bottom: 8px;
}

.saved-preview > div {
  width: 120px;
  height: 120px;
}

.saved-actions {
  display: flex;
  gap: 8px;
}

.small-btn {
  padding: 5px 10px;
  font-size: 0.75rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  background: #e5e7eb;
  color: #111827;
}

.small-btn:hover {
  background: #d1d5db;
}

.small-btn.danger {
  background: #fee2e2;
  color: #b91c1c;
}

.small-btn.danger:hover {
  background: #fecaca;
}

.sidebar,
.main-panel,
.preview-panel{
background:rgba(255,255,255,0.6);
backdrop-filter:blur(10px);
border:1px solid rgba(255,255,255,0.4);
padding:20px;
border-radius:16px;
}

.panel-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #374151;
  margin-bottom: 16px;
}

.side-group {
  margin-bottom: 10px;
}

.scan-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: #f3f4f6;
  margin-top: 16px;
  margin-bottom: 8px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #9ca3af;
}

.status-text {
  font-size: 0.78rem;
  color: #4b5563;
}

.status-idle {
  background: #9ca3af;
}

.status-good {
  background: #22c55e;
}

.status-warn {
  background: #f97316;
}

@media (max-width: 1024px) {
  .dashboard {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .sidebar,
  .main-panel,
  .preview-panel {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .card {
    padding: 20px 16px;
  }

  .title {
    font-size: 1.5rem;
  }

  /* QR preview animation */
.qr-preview{
box-shadow:0 10px 30px rgba(0,0,0,0.08);
transition:transform .2s ease;
}

.qr-preview:hover{
transform:scale(1.03);
}

/* Generate button hover animation */
.primary-btn:hover{
transform:translateY(-2px);
box-shadow:0 14px 35px rgba(102,126,234,0.5);
}

/* Preview panel sticky */
.preview-panel{
position:sticky;
top:20px;
}

  .nav-tabs {
    gap: 4px;
  }

  .nav-tab {
    padding: 8px 12px;
    font-size: 0.8rem;
  }

  .dashboard {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .qr-preview {
    width: 200px;
    height: 200px;
  }
}
/* Template active state */
.template-btn.active{
background:#667eea;
color:white;
box-shadow:0 4px 10px rgba(0,0,0,0.1);
}
.template-gallery{
display:flex;
gap:10px;
margin-top:8px;
}

.template-item{
display:flex;
flex-direction:column;
align-items:center;
padding:6px;
border-radius:10px;
cursor:pointer;
border:1px solid #e5e7eb;
transition:all .2s ease;
}

.template-item img{
width:60px;
height:60px;
}

.template-item span{
font-size:11px;
margin-top:4px;
}

.template-item:hover{
border-color:#667eea;
transform:scale(1.05);
}

.template-item.active{
border:2px solid #667eea;
}
/* QR preview smooth animation */

.qr-preview{
transition:all .3s ease;
}

.qr-preview canvas{
animation:qrFade .35s ease;
}

@keyframes qrFade{
0%{
opacity:0;
transform:scale(.9);
}

100%{
opacity:1;
transform:scale(1);
}
}
/* Template slider */

.template-slider{
display:flex;
gap:12px;
margin-top:10px;
}

.qr-template{
display:flex;
flex-direction:column;
align-items:center;
cursor:pointer;
font-size:12px;
}

.qr-sample{
width:50px;
height:50px;
border-radius:8px;
border:2px solid #e5e7eb;
margin-bottom:4px;
}

.qr-sample.classic{
background:black;
}

.qr-sample.dots{
background:radial-gradient(circle,#111 30%,transparent 31%);
background-size:10px 10px;
}

.qr-sample.rounded{
background:#111;
border-radius:16px;
}

.qr-sample.colorful{
background:linear-gradient(45deg,#6366f1,#22c55e);
}
/* Logo drop area */

.logo-drop{
border:2px dashed #d3dae2;
border-radius:12px;
padding:20px;
text-align:center;
cursor:pointer;
transition:all .2s ease;
}

.logo-drop:hover{
border-color:#667eea;
background:#fefefe;
}
/* QR scan animation */

.qr-preview{
position:relative;
overflow:hidden;
}

.qr-preview::after{
content:"";
position:absolute;
top:-100%;
left:0;
width:100%;
height:100%;
background:linear-gradient(
to bottom,
transparent,
rgba(255, 255, 255, 0.5),
transparent
);
animation:qrScan 3s infinite;
}

@keyframes qrScan{

0%{
top:-100%;
}

100%{
top:100%;
}

}
/* Sliding tab indicator */

.nav-tabs{
position:relative;
}

.tab-indicator{
position:absolute;
bottom:0;
height:3px;
background:#6366f1;
border-radius:2px;
transition:all .3s ease;
left:0;
width:0;
}