/* ── CSS Variables (picks design system) ── */
:root {
  --primary: #039EF5;
  --primary-dark: #0280C8;
  --accent: #FF34A9;
  --purple: #7B5ADC;
  --success: #28B87A;
  --warning: #F59E0B;
  --danger: #E04545;
  --text: #22232B;
  --text-light: #6B7280;
  --bg: #F4F7F9;
  --white: #FFFFFF;
  --border: #E5E7EB;
  --border-dark: #ABB8C3;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --font: 'Noto Sans JP', 'Readex Pro', -apple-system, sans-serif;
  --gradient: linear-gradient(135deg, #FF34A9, #039EF5);
}

* { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Header ── */
.app-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.app-header h1 {
  font-size: 18px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}
.header-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.nav-btn {
  background: none;
  border: none;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-btn:hover { background: var(--bg); color: var(--text); }
.nav-btn.active { background: var(--primary); color: var(--white); }

/* ── Main ── */
.main { max-width: 1200px; margin: 0 auto; padding: 24px; }

/* ── Card ── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.card h2 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Button ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font);
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-accent { background: var(--accent); color: var(--white); }
.btn-accent:hover { opacity: 0.9; }
.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-success { background: var(--success); color: var(--white); }
.btn-danger { background: var(--danger); color: var(--white); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-icon { width: 16px; height: 16px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Form ── */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 4px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font);
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(3,158,245,0.1);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── Project Grid ── */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
}
.project-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}
.project-card-title {
  font-size: 16px;
  font-weight: 700;
}
.project-card-meta {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ── Status Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.badge-active { background: #E8F8F0; color: var(--success); }
.badge-archived { background: #F3F4F6; color: var(--text-light); }
.badge-draft { background: #FEF3C7; color: #92400E; }
.badge-review { background: #DBEAFE; color: #1D4ED8; }
.badge-approved { background: #D1FAE5; color: #065F46; }
.badge-rejected { background: #FEE2E2; color: #991B1B; }
.badge-ok { background: #D1FAE5; color: #065F46; }
.badge-ng { background: #FEE2E2; color: #991B1B; }
.badge-comment { background: #DBEAFE; color: #1D4ED8; }

/* ── Share Link ── */
.share-link {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
.share-link input {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-light);
  background: var(--bg);
}
.copy-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-light);
  transition: all 0.2s;
}
.copy-btn:hover { background: var(--bg); }

/* ── Version Grid ── */
.version-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.version-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.2s;
}
.version-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.version-preview {
  height: 180px;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.version-preview iframe {
  width: 200%;
  height: 200%;
  transform: scale(0.5);
  transform-origin: top left;
  border: none;
  pointer-events: none;
}
.version-info {
  padding: 12px 16px;
}
.version-info-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}
.version-member {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}
.version-label {
  font-size: 14px;
  font-weight: 700;
}
.version-desc {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
}
.version-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

/* ── Upload Area ── */
.upload-area {
  border: 2px dashed var(--border-dark);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}
.upload-area:hover, .upload-area.dragover {
  border-color: var(--primary);
  background: rgba(3,158,245,0.04);
}
.upload-area p {
  color: var(--text-light);
  font-size: 14px;
  margin-top: 8px;
}
.upload-area input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  width: 90%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.3s;
}
.modal-overlay.active .modal { transform: translateY(0); }
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.modal-header h3 { font-size: 18px; font-weight: 700; }
.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-light);
  padding: 4px;
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ── Preview Panel ── */
.preview-panel {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 60px);
}
.preview-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.preview-toolbar .btn-group {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.preview-toolbar .btn-group button {
  background: var(--white);
  border: none;
  border-right: 1px solid var(--border);
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}
.preview-toolbar .btn-group button:last-child { border-right: none; }
.preview-toolbar .btn-group button.active {
  background: var(--primary);
  color: var(--white);
}
.preview-toolbar .btn-group button:hover:not(.active) { background: var(--bg); }
.preview-container {
  flex: 1;
  display: flex;
  justify-content: center;
  background: #E5E7EB;
  padding: 0;
  overflow: auto;
}
.preview-frame {
  background: var(--white);
  transition: width 0.3s;
  overflow: hidden;
  position: relative;
}
.preview-frame iframe {
  width: 100%;
  height: 100%;
  border: none;
}
.preview-frame.desktop { width: 100%; height: 100%; }
.preview-frame.tablet { width: 768px; height: 100%; box-shadow: var(--shadow-lg); }
.preview-frame.mobile { width: 375px; height: 100%; box-shadow: var(--shadow-lg); }

/* ── Zoom Controls ── */
.zoom-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}
.zoom-controls span {
  font-size: 12px;
  min-width: 40px;
  text-align: center;
  color: var(--text-light);
}

/* ── Comment Section ── */
.comment-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  max-height: 300px;
  overflow-y: auto;
}
.comment-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.comment-item:last-child { border-bottom: none; }
.comment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}
.comment-author {
  font-size: 14px;
  font-weight: 600;
}
.comment-date {
  font-size: 12px;
  color: var(--text-light);
}
.comment-body {
  font-size: 14px;
  color: var(--text);
}
.comment-form {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.comment-form input, .comment-form textarea {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font);
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--text);
  color: var(--white);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  z-index: 2000;
  transition: transform 0.3s;
  box-shadow: var(--shadow-lg);
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-light);
}
.empty-state p { margin-top: 8px; font-size: 14px; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .app-header { padding: 0 16px; }
  .app-header h1 { font-size: 15px; }
  .main { padding: 16px; }
  .project-grid { grid-template-columns: 1fr; }
  .version-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .nav-btn span { display: none; }
}

/* ── Loading ── */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}

/* ── Login Gate ── */
.login-gate {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-google-login {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all 0.2s;
}
.btn-google-login:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

/* ── Version Toolbar ── */
.version-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 16px 0 8px;
  flex-wrap: wrap;
}
.toolbar-left { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; flex: 1; }
.toolbar-right { display: flex; align-items: center; gap: 8px; }

/* ── Tag Filter Chips ── */
.tag-filter { display: flex; gap: 6px; flex-wrap: wrap; }
.tag-chip {
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--white);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
}
.tag-chip:hover { border-color: var(--primary); color: var(--primary); }
.tag-chip.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* ── Tag Labels on Cards ── */
.version-tags { display: flex; gap: 4px; flex-wrap: wrap; margin: 4px 0; }
.tag-label {
  padding: 2px 8px;
  border-radius: 12px;
  background: #EFF6FF;
  color: var(--primary);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.tag-label:hover { background: #DBEAFE; }

.version-meta {
  font-size: 12px;
  color: var(--text-light);
  margin: 2px 0;
}

/* ── Compare Mode ── */
.compare-selectable { cursor: pointer; position: relative; }
.compare-selectable:hover { box-shadow: 0 0 0 2px var(--primary); }
.compare-selected { box-shadow: 0 0 0 2px var(--accent) !important; }
.compare-check {
  width: 18px; height: 18px; accent-color: var(--accent); cursor: pointer;
}

.compare-grid {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 16px;
}
.compare-pane {
  flex: 1;
  min-width: 300px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.compare-pane-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.compare-iframe {
  width: 100%;
  height: calc(100vh - 160px);
  border: none;
  display: block;
  margin: 0 auto;
}

.btn-accent {
  background: var(--accent) !important;
  color: var(--white) !important;
  border-color: var(--accent) !important;
}

/* ── Feedback Panel (admin) ── */
.admin-feedback-panel {
  position: fixed;
  right: 0;
  top: 60px;
  width: 380px;
  height: calc(100vh - 60px);
  background: var(--white);
  box-shadow: -4px 0 20px rgba(0,0,0,0.12);
  z-index: 99;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.25s ease;
}
.admin-feedback-panel.open { transform: translateX(0); }
.feedback-panel-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.feedback-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
}
.feedback-panel-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.comment-count-badge {
  background: var(--accent);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 10px;
  margin-left: 4px;
}
.fb-toggle-btn.has-comments {
  border-color: var(--accent);
  color: var(--accent);
}
@media (max-width: 640px) {
  .admin-feedback-panel { width: 100%; }
}

/* ── Pin Overlay ── */
.pin-overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  display: none;
}
.pin-overlay.pin-active {
  display: block;
  pointer-events: auto;
  cursor: crosshair;
}
.pin-overlay.has-pins {
  display: block;
}

.pin-marker {
  position: absolute;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--white);
  transform: translate(-50%, -50%);
  cursor: pointer;
  pointer-events: auto;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  transition: transform 0.15s;
  z-index: 11;
  user-select: none;
}
.pin-marker:hover {
  transform: translate(-50%, -50%) scale(1.2);
}
.pin-ok { background: var(--success); }
.pin-ng { background: var(--danger); }
.pin-comment { background: var(--primary); }
.pin-temp {
  background: var(--accent);
  animation: pin-pulse 0.6s ease-in-out infinite alternate;
}
@keyframes pin-pulse {
  from { transform: translate(-50%, -50%) scale(1); }
  to { transform: translate(-50%, -50%) scale(1.3); }
}

/* ── Pin Badge (in comment list) ── */
.pin-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  color: var(--white);
  margin-right: 6px;
  vertical-align: middle;
}
.pin-badge-ok { background: var(--success); }
.pin-badge-ng { background: var(--danger); }
.pin-badge-comment { background: var(--primary); }

/* ── Comment Highlight ── */
.comment-highlight {
  background: rgba(3, 158, 245, 0.1);
  border-left: 3px solid var(--primary);
  padding-left: 9px;
  transition: background 0.3s;
}

/* ── Pin Toggle Active ── */
.pin-toggle.btn-accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}