body.qr-light-page {
  background: #f7f7f4;
  color: #111;
}

.qr-light-page header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 10;
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid #1f1f1f;
}

.qr-light-page .logo {
  color: #fff;
}

.qr-light-page .logo span {
  color: #999;
}

.qr-light-page nav {
  color: #bbb;
}

.qr-light-page nav a:hover {
  color: #fff;
}

.qr-tool {
  min-height: 100vh;
  padding: 128px 0 76px;
  background:
    linear-gradient(135deg, rgba(0, 0, 0, 0.05) 25%, transparent 25%) 0 0 / 24px
      24px,
    linear-gradient(180deg, #fff 0%, #f3f3ee 100%);
}

.qr-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(340px, 0.7fr);
  gap: 38px;
  align-items: start;
}

.qr-copy {
  margin-bottom: 28px;
}

.qr-copy .badge {
  background: #111;
  border-color: #111;
  color: #fff;
}

.qr-copy h1 {
  max-width: 780px;
  color: #111;
}

.qr-copy p {
  max-width: 680px;
  color: #3b3b37;
  font-size: 1.08rem;
}

.qr-panel,
.qr-preview,
.qr-help {
  background: #fff;
  border: 1px solid #dddcd3;
  border-radius: 18px;
  box-shadow: 0 24px 70px rgba(17, 17, 17, 0.08);
}

.qr-panel {
  padding: 24px;
}

.qr-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 22px;
}

.qr-tab {
  min-height: 44px;
  border: 1px solid #d7d7cf;
  border-radius: 10px;
  background: #f6f6f1;
  color: #171717;
  cursor: pointer;
  font-weight: 800;
}

.qr-tab[aria-selected="true"] {
  background: #111;
  border-color: #111;
  color: #fff;
}

.qr-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.qr-field,
.qr-field-wide {
  display: grid;
  gap: 8px;
}

.qr-field-wide {
  grid-column: 1 / -1;
}

.qr-field label,
.qr-field-wide label,
.qr-options-title {
  color: #2b2b27;
  font-size: 0.86rem;
  font-weight: 800;
}

.qr-field input,
.qr-field select,
.qr-field-wide input,
.qr-field-wide textarea,
.qr-options select {
  width: 100%;
  border: 1px solid #cfcfc6;
  border-radius: 12px;
  background: #fff;
  color: #111;
  font: inherit;
  min-height: 48px;
  padding: 12px 14px;
}

.qr-field-wide textarea {
  min-height: 132px;
  resize: vertical;
}

.qr-field input:focus,
.qr-field select:focus,
.qr-field-wide input:focus,
.qr-field-wide textarea:focus,
.qr-options select:focus {
  border-color: #111;
  outline: 3px solid rgba(17, 17, 17, 0.12);
}

.qr-pane {
  display: none;
}

.qr-pane.is-active {
  display: block;
}

.qr-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 22px 0;
  padding-top: 20px;
  border-top: 1px solid #e5e4dc;
}

.qr-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.qr-actions .btn {
  border: 0;
  cursor: pointer;
}

.qr-actions .btn-primary {
  background: #111;
  color: #fff;
}

.qr-actions .btn-secondary {
  border: 1px solid #cfcfc6;
  background: #fff;
  color: #111;
}

.qr-actions .btn:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.qr-preview {
  position: sticky;
  top: 100px;
  display: grid;
  gap: 18px;
  justify-items: center;
  padding: 26px;
  text-align: center;
}

.qr-preview h2 {
  font-size: 1.3rem;
  line-height: 1.2;
}

.qr-stage {
  width: min(100%, 320px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid #d8d8d0;
  border-radius: 16px;
  background:
    linear-gradient(45deg, #f0f0ea 25%, transparent 25%) 0 0 / 18px 18px,
    linear-gradient(-45deg, #f0f0ea 25%, transparent 25%) 0 9px / 18px 18px,
    #fff;
  padding: 18px;
}

#qr-code {
  display: grid;
  place-items: center;
}

#qr-code canvas,
#qr-code img {
  width: 100% !important;
  height: auto !important;
  max-width: 280px;
  border-radius: 6px;
}

.qr-empty {
  color: #5e5e58;
  font-weight: 700;
}

.qr-status {
  min-height: 24px;
  color: #484842;
  font-size: 0.9rem;
}

.qr-help {
  margin-top: 20px;
  padding: 20px;
}

.qr-help p {
  color: #4c4c46;
  margin-top: 8px;
}

.qr-light-page footer {
  padding: 36px 0;
  background: #1a1a1a;
  border-top-color: #dcdcd4;
  color: #777;
}

@media (max-width: 940px) {
  .qr-layout {
    grid-template-columns: 1fr;
  }

  .qr-preview {
    position: static;
  }
}

@media (max-width: 640px) {
  .qr-tool {
    padding-top: 112px;
  }

  .qr-tabs,
  .qr-form-grid,
  .qr-options {
    grid-template-columns: 1fr;
  }

  .qr-panel {
    padding: 18px;
  }
}