/* ═══════════════════════════════════════════════════════════ */
/* QR作成 Page                                                 */
/* ═══════════════════════════════════════════════════════════ */

.qr-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px 60px;
}
.qr-header {
  margin-bottom: 28px;
}
.qr-header h1 {
  font-size: 1.6rem; font-weight: 800;
  letter-spacing: -.03em;
  margin-bottom: 4px;
}
.qr-header p {
  color: var(--text-secondary);
  font-size: .88rem;
}

.qr-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 28px;
  align-items: start;
}

.qr-controls {
  display: flex; flex-direction: column; gap: 20px;
}

.qr-section {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
}
.qr-section h3 {
  font-size: .9rem; font-weight: 700;
  margin-bottom: 14px;
}

/* Tabs */
.qr-tabs {
  display: flex; gap: 4px;
  background: var(--bg-inset);
  padding: 3px;
  border-radius: var(--radius-sm);
}
.qr-tab {
  flex: 1;
  padding: 8px 12px;
  font-size: .82rem;
  font-weight: 500;
  background: none; border: none;
  color: var(--text-secondary);
  border-radius: 4px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  transition: background .15s, color .15s;
}
.qr-tab svg { width: 14px; height: 14px; }
.qr-tab:hover { color: var(--text-primary); }
.qr-tab.active {
  background: var(--bg-raised);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* Dot Options */
.qr-dot-options {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.qr-dot-btn {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 10px 6px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: .72rem;
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.qr-dot-btn:hover { border-color: var(--border-hover); color: var(--text-primary); }
.qr-dot-btn.active { border-color: var(--accent); color: var(--accent); }

.dot-preview {
  width: 14px; height: 14px;
  background: currentColor;
}
.dot-preview--square { border-radius: 0; }
.dot-preview--circle { border-radius: 50%; }
.dot-preview--rounded { border-radius: 4px; }
.dot-preview--diamond { transform: rotate(45deg); width: 12px; height: 12px; }

/* Color */
.qr-color-row {
  display: flex; gap: 16px;
}
.qr-color-group {
  flex: 1;
}
.qr-color-wrap {
  position: relative;
}
.qr-color-wrap input[type="color"] {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  opacity: 0; cursor: pointer;
}
.qr-color-swatch {
  width: 100%; height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  cursor: pointer;
}

/* EC Options */
.qr-ec-options {
  display: flex; gap: 6px;
}
.qr-ec-btn {
  flex: 1;
  padding: 8px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: .82rem; font-weight: 600;
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.qr-ec-btn:hover { border-color: var(--border-hover); }
.qr-ec-btn.active { border-color: var(--accent); color: var(--accent); }

.qr-trans-row {
  display: flex; align-items: center; gap: 8px;
  margin-top: 12px;
  font-size: .84rem;
  color: var(--text-secondary);
}
.qr-trans-row input[type="checkbox"] {
  accent-color: var(--accent);
}

/* Logo */
.qr-logo-section {
  margin-top: 14px;
}
.qr-logo-preview {
  width: 60px; height: 60px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin: 8px 0;
  border: 1px solid var(--border);
}
.qr-logo-preview img { width: 100%; height: 100%; object-fit: cover; }

/* Preview Panel */
.qr-preview-panel {
  position: sticky; top: 80px;
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.qr-canvas-wrap {
  width: 100%;
  aspect-ratio: 1;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  padding: 16px;
}
.qr-canvas-wrap.transparent-bg {
  background: repeating-conic-gradient(#1a1a1a 0% 25%, #222 0% 50%) 50% / 16px 16px;
}
.qr-canvas-wrap canvas {
  max-width: 100%; max-height: 100%;
  border-radius: 4px;
}

.qr-download-row {
  display: flex; gap: 8px; width: 100%;
}
.qr-download-row button { flex: 1; }
.qr-download-row button svg { width: 14px; height: 14px; }

@media (max-width: 820px) {
  .qr-layout {
    grid-template-columns: 1fr;
  }
  .qr-preview-panel { position: static; }
}
@media (max-width: 640px) {
  .qr-page { padding: 70px 16px 40px; }
  .qr-dot-options { grid-template-columns: repeat(2, 1fr); }
}