/* ============================================================
   Slide Builder Dashboard — Cloudflare CF2026 brand
   Font: Google Sans (loaded via <link> in index.html)
   ============================================================ */

:root {
  --cf-orange:      #f48120;
  --cf-orange-dark: #e0741a;
  --cf-yellow:      #faad3f;
  --cf-dark:        #1a1a1a;
  --cf-gray:        #404040;
  --cf-gray-light:  #6b7280;
  --cf-bg:          #f9fafb;
  --cf-bg-white:    #ffffff;
  --cf-border:      #e5e7eb;
  --cf-blue:        #0051c3;
  --cf-green:       #16a34a;
  --cf-red:         #dc2626;
  --cf-shadow:      0 1px 4px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);
  --cf-radius:      10px;
  --font:           'Google Sans', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: var(--font);
  font-size: 15px;
  color: var(--cf-dark);
  background: var(--cf-bg);
  -webkit-font-smoothing: antialiased;
}

/* ── Top nav bar ──────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  background: linear-gradient(135deg, #e8711d 0%, #f48120 30%, #faad3f 70%, #f9bc5a 100%);
  padding: 0 32px;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.topbar-logo {
  height: 28px;
  flex-shrink: 0;
}

.topbar-title {
  color: #fff;
  font-size: 1.05em;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.topbar-spacer { flex: 1; }

/* ── Tab navigation ───────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  padding: 0 32px;
  background: #fff;
  border-bottom: 1px solid var(--cf-border);
  position: sticky;
  top: 60px;
  z-index: 100;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 14px 20px;
  font-family: var(--font);
  font-size: 0.92em;
  font-weight: 500;
  color: var(--cf-gray-light);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.tab-btn:hover { color: var(--cf-orange); }

.tab-btn.active {
  color: var(--cf-orange);
  border-bottom-color: var(--cf-orange);
}

/* ── Main layout ──────────────────────────────────────────── */
.main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

/* Tab panels */
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Section headings ─────────────────────────────────────── */
.section-title {
  font-size: 1.15em;
  font-weight: 700;
  color: var(--cf-dark);
  margin-bottom: 4px;
}

.section-desc {
  font-size: 0.88em;
  color: var(--cf-gray-light);
  margin-bottom: 20px;
}

/* ── Upload drop zone ─────────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 40px 24px;
  text-align: center;
  background: #fff;
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
  position: relative;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--cf-orange);
  background: #fff7ed;
}

.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.drop-icon {
  font-size: 2em;
  color: var(--cf-orange);
  margin-bottom: 10px;
}

.drop-label {
  font-size: 0.95em;
  font-weight: 500;
  color: var(--cf-gray);
}

.drop-hint {
  font-size: 0.8em;
  color: var(--cf-gray-light);
  margin-top: 4px;
}

/* Upload progress bar */
.upload-progress {
  display: none;
  margin-top: 12px;
  height: 4px;
  background: var(--cf-border);
  border-radius: 4px;
  overflow: hidden;
}

.upload-progress.visible { display: block; }

.upload-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--cf-orange), var(--cf-yellow));
  border-radius: 4px;
  transition: width 0.3s ease;
  width: 0%;
}

/* ── File list ────────────────────────────────────────────── */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 20px;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 12px 16px;
  transition: border-color 0.15s;
}

.file-item:hover { border-color: var(--cf-orange); }

.file-item input[type="checkbox"] {
  accent-color: var(--cf-orange);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.file-icon {
  font-size: 1.2em;
  flex-shrink: 0;
  color: var(--cf-orange);
}

.file-info { flex: 1; min-width: 0; }

.file-name {
  font-size: 0.9em;
  font-weight: 500;
  color: var(--cf-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta {
  font-size: 0.75em;
  color: var(--cf-gray-light);
  margin-top: 2px;
}

.file-delete {
  background: none;
  border: 1px solid var(--cf-border);
  border-radius: 6px;
  color: var(--cf-gray-light);
  font-size: 0.78em;
  padding: 4px 10px;
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.15s;
  flex-shrink: 0;
}

.file-delete:hover {
  border-color: var(--cf-red);
  color: var(--cf-red);
  background: #fef2f2;
}

/* ── Logo grid ────────────────────────────────────────────── */
.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.logo-card {
  background: #fff;
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 16px 12px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: border-color 0.15s, box-shadow 0.15s;
  position: relative;
}

.logo-card:hover {
  border-color: var(--cf-orange);
  box-shadow: 0 2px 12px rgba(244,129,32,0.12);
}

.logo-card.selected {
  border-color: var(--cf-orange);
  background: #fff7ed;
}

.logo-card input[type="checkbox"] {
  position: absolute;
  top: 8px;
  left: 8px;
  accent-color: var(--cf-orange);
  width: 15px;
  height: 15px;
}

.logo-thumb {
  width: 80px;
  height: 48px;
  object-fit: contain;
  background: transparent;
}

.logo-name {
  font-size: 0.75em;
  color: var(--cf-gray);
  text-align: center;
  word-break: break-all;
  line-height: 1.3;
}

.logo-delete {
  background: none;
  border: none;
  color: var(--cf-gray-light);
  font-size: 0.72em;
  cursor: pointer;
  font-family: var(--font);
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.15s;
}

.logo-delete:hover {
  color: var(--cf-red);
  background: #fef2f2;
}

/* ── Builder panel ────────────────────────────────────────── */
.builder-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 720px) {
  .builder-grid { grid-template-columns: 1fr; }
}

.builder-card {
  background: #fff;
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 20px;
}

.builder-card-title {
  font-size: 0.88em;
  font-weight: 600;
  color: var(--cf-gray-light);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 14px;
}

/* Prompt textarea */
.prompt-wrap {
  margin-top: 24px;
}

.prompt-label {
  display: block;
  font-size: 0.88em;
  font-weight: 600;
  color: var(--cf-gray);
  margin-bottom: 8px;
}

textarea.prompt-input {
  width: 100%;
  min-height: 100px;
  border: 1px solid var(--cf-border);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: var(--font);
  font-size: 0.92em;
  color: var(--cf-dark);
  resize: vertical;
  transition: border-color 0.15s;
  background: #fff;
}

textarea.prompt-input:focus {
  outline: none;
  border-color: var(--cf-orange);
  box-shadow: 0 0 0 3px rgba(244,129,32,0.1);
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: 8px;
  padding: 10px 22px;
  font-family: var(--font);
  font-size: 0.92em;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
}

.btn-primary {
  background: var(--cf-orange);
  color: #fff;
}

.btn-primary:hover:not(:disabled) { background: var(--cf-orange-dark); }

.btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-secondary {
  background: #fff;
  color: var(--cf-gray);
  border: 1px solid var(--cf-border);
}

.btn-secondary:hover:not(:disabled) { border-color: var(--cf-orange); color: var(--cf-orange); }

.btn-secondary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-full { width: 100%; justify-content: center; margin-top: 16px; }

/* Spinner inside button */
.spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

.btn-primary.loading .spinner { display: block; }
.btn-primary.loading .btn-label { opacity: 0.7; }

/* ── Toast notifications ──────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--cf-dark);
  color: #fff;
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 0.88em;
  font-weight: 500;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.25s ease;
  pointer-events: auto;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success { background: var(--cf-green); }
.toast.error   { background: var(--cf-red); }

/* ── Preview area ─────────────────────────────────────────── */
.preview-section {
  margin-top: 32px;
}

.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.preview-title {
  font-size: 0.95em;
  font-weight: 600;
  color: var(--cf-dark);
}

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

.preview-frame-wrap {
  background: #1a1a1a;
  border-radius: var(--cf-radius);
  overflow: hidden;
  box-shadow: var(--cf-shadow);
  position: relative;
}

.preview-frame-wrap::before {
  content: '';
  display: block;
  padding-top: 56.25%; /* 16:9 */
}

iframe#preview-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.preview-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cf-gray-light);
  font-size: 0.88em;
  background: #f3f4f6;
}

/* ── Empty states ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 40px 24px;
  color: var(--cf-gray-light);
  font-size: 0.88em;
}

.empty-state-icon {
  font-size: 2.5em;
  margin-bottom: 10px;
  opacity: 0.4;
}

/* ── Divider ──────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--cf-border);
  margin: 24px 0;
}

/* ── Google Drive tab ─────────────────────────────────────── */
.drive-connect-card {
  background: #fff;
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 28px 24px;
}

.drive-status-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.drive-status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cf-gray-light);
  flex-shrink: 0;
  transition: background 0.2s;
}

.drive-status-indicator.connected    { background: var(--cf-green); }
.drive-status-indicator.disconnected { background: var(--cf-gray-light); }
.drive-status-indicator.error        { background: var(--cf-red); }

.drive-status-label {
  font-size: 0.9em;
  font-weight: 500;
  color: var(--cf-gray);
}

.drive-help-text {
  font-size: 0.88em;
  color: var(--cf-gray-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.drive-setup-steps { }

.drive-steps-list {
  margin: 0 0 8px 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.drive-steps-list li {
  font-size: 0.88em;
  color: var(--cf-gray);
  line-height: 1.6;
}

.drive-steps-list code {
  background: var(--cf-bg);
  border: 1px solid var(--cf-border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.92em;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.drive-code-block {
  background: #1e1e2e;
  color: #cdd6f4;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.78em;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  margin: 6px 0 0;
  white-space: pre-wrap;
  overflow-x: auto;
}

.drive-code-block em {
  color: #6c7086;
  font-style: normal;
}

.drive-sa-email-line {
  font-size: 0.82em;
  color: var(--cf-gray-light);
  margin: 0 0 16px;
}

.drive-sa-email-line code {
  color: var(--cf-green);
  font-size: 0.95em;
}

/* Google Drive branded button */
.btn-drive {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  color: var(--cf-dark);
  border: 1px solid var(--cf-border);
  border-radius: 8px;
  padding: 10px 20px;
  font-family: var(--font);
  font-size: 0.92em;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  transition: box-shadow 0.18s, border-color 0.18s;
}

.btn-drive:hover {
  border-color: #4285f4;
  box-shadow: 0 2px 8px rgba(66,133,244,0.18);
}

.drive-folder-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.drive-folder-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92em;
  font-weight: 500;
  color: var(--cf-dark);
}

.drive-folder-icon { font-size: 1.2em; }

.drive-folder-picker { margin-bottom: 8px; }

.drive-folder-input-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.drive-folder-input {
  flex: 1;
  height: 40px;
  border: 1px solid var(--cf-border);
  border-radius: 8px;
  padding: 0 12px;
  font-family: var(--font);
  font-size: 0.88em;
  color: var(--cf-dark);
  transition: border-color 0.15s;
}

.drive-folder-input:focus {
  outline: none;
  border-color: var(--cf-orange);
  box-shadow: 0 0 0 3px rgba(244,129,32,0.1);
}

.drive-files-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.drive-file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 10px 16px;
  margin-bottom: 8px;
  transition: border-color 0.15s;
}

.drive-file-item:hover { border-color: #4285f4; }

.drive-file-item input[type="checkbox"] {
  accent-color: #4285f4;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.drive-mime-badge {
  background: #eff6ff;
  color: #0051c3;
  border: 1px solid #bfdbfe;
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.7em;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.drive-mime-badge.slides { background: #fef9c3; color: #854d0e; border-color: #fde68a; }
.drive-mime-badge.doc    { background: #f0fdf4; color: #166534; border-color: #bbf7d0; }
.drive-mime-badge.pptx   { background: #fff7ed; color: #9a3412; border-color: #fed7aa; }
.drive-mime-badge.pdf    { background: #fef2f2; color: #991b1b; border-color: #fecaca; }

/* ── Convert tab ──────────────────────────────────────────── */
.convert-card {
  background: #fff;
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 24px;
}

/* ── Refinement panel ─────────────────────────────────────── */
.refine-panel {
  margin-top: 20px;
  background: #fff;
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 20px;
  border-left: 4px solid var(--cf-orange);
}

.refine-title {
  font-size: 0.95em;
  font-weight: 700;
  color: var(--cf-dark);
  margin-bottom: 4px;
}

.refine-desc {
  font-size: 0.82em;
  color: var(--cf-gray-light);
  margin-bottom: 12px;
  line-height: 1.55;
}

/* ── CF Sources tab ───────────────────────────────────────── */
.sources-howto {
  background: #f8faff;
  border: 1px solid #bfdbfe;
  border-radius: var(--cf-radius);
  padding: 18px 20px;
  margin-bottom: 4px;
}

.sources-howto-title {
  font-size: 0.88em;
  font-weight: 700;
  color: var(--cf-blue);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.sources-howto-desc {
  font-size: 0.85em;
  color: var(--cf-gray);
  line-height: 1.6;
  margin-bottom: 8px;
}

.sources-howto-desc code {
  background: #fff;
  border: 1px solid var(--cf-border);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 0.9em;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.sources-code-block {
  background: #1e1e2e;
  color: #cdd6f4;
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 0.78em;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-x: auto;
  margin: 8px 0;
}

.sources-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

/* Source badges */
.source-badge {
  display: inline-block;
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 0.7em;
  font-weight: 700;
  margin: 2px 2px;
  border: 1px solid transparent;
}

.source-badge.wiki,
.source-badge.confluence    { background: #eff6ff; color: #1d4ed8; border-color: #bfdbfe; }
.source-badge.backstage     { background: #faf5ff; color: #7c3aed; border-color: #ddd6fe; }
.source-badge.cloudflare-docs { background: #fff7ed; color: #c2410c; border-color: #fed7aa; }
.source-badge.gitlab        { background: #fef9c3; color: #854d0e; border-color: #fde68a; }
.source-badge.jira          { background: #eff6ff; color: #0051c3; border-color: #bfdbfe; }
.source-badge.changelog     { background: #f0fdf4; color: #166534; border-color: #bbf7d0; }
.source-badge.sentry        { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.source-badge.pagerduty     { background: #fff7ed; color: #9a3412; border-color: #fed7aa; }
.source-badge.salesforce    { background: #eff6ff; color: #0051c3; border-color: #bfdbfe; }
.source-badge.custom        { background: var(--cf-bg); color: var(--cf-gray); border-color: var(--cf-border); }

/* Source list items */
.source-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 12px 16px;
  margin-bottom: 8px;
  transition: border-color 0.15s;
}

.source-item:hover { border-color: var(--cf-blue); }

.source-item input[type="checkbox"] {
  accent-color: var(--cf-blue);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

.source-item-body { flex: 1; min-width: 0; }

.source-item-title {
  font-size: 0.9em;
  font-weight: 600;
  color: var(--cf-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.source-item-meta {
  font-size: 0.75em;
  color: var(--cf-gray-light);
  margin-top: 3px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.source-item-url {
  color: var(--cf-blue);
  text-decoration: none;
  font-size: 0.9em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
  display: inline-block;
}

.source-item-url:hover { text-decoration: underline; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 600px) {
  .topbar { padding: 0 16px; }
  .tabs   { padding: 0 16px; }
  .main   { padding: 20px 16px 48px; }
}