/* ── QR Code Generator Tool Page ──────────────────────────────────── */

/* Hero */
.qr-tool-hero {
  padding-bottom: 1.5rem;
}

.qr-tool-hero .breadcrumb {
  font-size: 0.875rem;
  margin-bottom: 1rem;
  color: var(--text-muted, #6b7280);
}

.qr-tool-hero .breadcrumb a {
  color: var(--primary, #2563eb);
  text-decoration: none;
}

.qr-tool-hero .breadcrumb span[aria-hidden] {
  margin: 0 0.5rem;
}

/* Tabs */
.qr-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border, #e5e7eb);
  margin-bottom: 2rem;
}

.qr-tab {
  padding: 0.75rem 1.5rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted, #6b7280);
  transition: color 0.2s, border-color 0.2s;
}

.qr-tab:hover {
  color: var(--text, #111827);
}

.qr-tab.active {
  color: var(--primary, #2563eb);
  border-bottom-color: var(--primary, #2563eb);
}

/* Tool Layout — 2 column */
.qr-tool-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

/* Input Panel */
.qr-input-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.qr-type-panel {
  display: none;
}

.qr-type-panel.active {
  display: block;
}

.qr-type-panel label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.375rem;
  margin-top: 0.75rem;
  font-size: 0.9rem;
}

.qr-type-panel label:first-child {
  margin-top: 0;
}

.qr-type-panel input,
.qr-type-panel textarea,
.qr-type-panel select {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--border, #d1d5db);
  border-radius: 0.5rem;
  font-size: 0.95rem;
  background: var(--bg, #fff);
  color: var(--text, #111827);
  transition: border-color 0.2s;
}

.qr-type-panel input:focus,
.qr-type-panel textarea:focus,
.qr-type-panel select:focus {
  outline: none;
  border-color: var(--primary, #2563eb);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Customize Section */
.qr-customize-section {
  margin-top: 1rem;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 0.5rem;
  padding: 1rem;
}

.qr-customize-section summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 1rem;
}

.qr-customize-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.color-group,
.select-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.color-group label,
.select-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted, #6b7280);
}

.color-group input[type="color"] {
  width: 100%;
  height: 40px;
  border: 1px solid var(--border, #d1d5db);
  border-radius: 0.375rem;
  padding: 2px;
  cursor: pointer;
  background: var(--bg, #fff);
}

.select-group select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border, #d1d5db);
  border-radius: 0.375rem;
  font-size: 0.9rem;
  background: var(--bg, #fff);
  color: var(--text, #111827);
}

/* Logo Upload */
.logo-upload-group {
  margin-top: 1rem;
}

.logo-upload-group > label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted, #6b7280);
  display: block;
  margin-bottom: 0.5rem;
}

.logo-upload-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-upload-btn {
  cursor: pointer;
}

.logo-filename {
  font-size: 0.85rem;
  color: var(--text-muted, #6b7280);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}

.logo-hint {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted, #9ca3af);
  margin-top: 0.25rem;
}

/* Preview Panel */
.qr-preview-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: sticky;
  top: 6rem;
}

.preview-heading {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.qr-preview-canvas {
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--border, #d1d5db);
  border-radius: 1rem;
  background: #fff;
  padding: 1rem;
}

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

.qr-download-buttons {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  width: 100%;
  justify-content: center;
}

.qr-download-buttons .btn-primary,
.qr-download-buttons .btn-secondary {
  flex: 1;
  max-width: 160px;
  text-align: center;
}

/* Newsletter */
.newsletter-section {
  background: var(--bg-alt, #f9fafb);
  padding: 3rem 0;
  text-align: center;
}

.newsletter-section h2 {
  margin-bottom: 1rem;
}

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input[type="email"] {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border, #d1d5db);
  border-radius: 0.5rem;
  font-size: 1rem;
}

.newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--primary, #2563eb);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.newsletter-msg {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  min-height: 1.4em;
}

.newsletter-msg.success {
  color: var(--success, #059669);
}

.newsletter-msg.error {
  color: var(--error, #dc2626);
}

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .qr-tool-layout {
    grid-template-columns: 1fr;
  }

  .qr-preview-panel {
    position: static;
    order: -1;
  }

  .qr-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
  }

  .qr-tab {
    padding: 0.625rem 1rem;
    white-space: nowrap;
    font-size: 0.9rem;
  }

  .qr-customize-grid {
    grid-template-columns: 1fr;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .qr-preview-canvas {
    width: 240px;
    height: 240px;
  }
}