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

:root {
  --sidebar-w: 240px;
  --header-h: 48px;
  --log-h: 160px;
  --bg: #1a1a2e;
  --surface: #16213e;
  --surface2: #0f3460;
  --accent: #e94560;
  --accent2: #53c0f0;
  --text: #e0e0e0;
  --text-muted: #888;
  --border: rgba(255,255,255,0.08);
  --slide-w: 1024px;
  --slide-h: 768px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 13px;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
#header {
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  flex-shrink: 0;
  z-index: 10;
}

#header .logo {
  font-weight: 700;
  font-size: 14px;
  color: var(--accent2);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

#header .logo span { color: var(--accent); }

#current-slide-label {
  flex: 1;
  color: var(--text-muted);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#current-slide-label strong {
  color: var(--text);
  font-weight: 600;
}

.header-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
  transition: background 0.15s;
}

.header-btn:hover { background: var(--accent2); color: #000; }
.header-btn.upload-btn:hover { background: #4caf50; color: #fff; border-color: #4caf50; }

#ws-status {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #555;
  flex-shrink: 0;
}
#ws-status.connected    { background: #4caf50; }
#ws-status.disconnected { background: var(--accent); }

/* ── Main layout ─────────────────────────────────────────────────────────── */
#main {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

#sidebar-header {
  padding: 10px 12px 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#slide-count {
  font-weight: 400;
  font-size: 11px;
  color: var(--text-muted);
}

#slide-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}

#slide-list::-webkit-scrollbar { width: 4px; }
#slide-list::-webkit-scrollbar-track { background: transparent; }
#slide-list::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 2px; }

.slide-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background 0.1s, border-color 0.1s;
  overflow: hidden;
}

.slide-item:hover { background: rgba(255,255,255,0.04); }

.slide-item.active {
  background: rgba(83, 192, 240, 0.1);
  border-left-color: var(--accent2);
}

.slide-item .slide-icon {
  width: 28px; height: 21px;
  background: var(--surface2);
  border-radius: 2px;
  flex-shrink: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  color: var(--text-muted);
}

.slide-item .slide-icon img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.slide-item .slide-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  line-height: 1.3;
}

.slide-item .slide-num {
  font-size: 10px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.slide-badge-engage {
  font-size: 9px;
  font-weight: 700;
  background: rgba(83,192,240,0.18);
  color: var(--accent2);
  border: 1px solid rgba(83,192,240,0.35);
  border-radius: 3px;
  padding: 0 4px;
  flex-shrink: 0;
  line-height: 1.6;
  letter-spacing: 0.3px;
}

/* ── Sidebar search ──────────────────────────────────────────────────────── */
#sidebar-search {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

#search-input {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 5px 10px;
  font-size: 12px;
  outline: none;
  transition: border-color 0.15s;
}

#search-input:focus       { border-color: var(--accent2); }
#search-input::placeholder { color: var(--text-muted); }

/* ── Presentation group headers ──────────────────────────────────────────── */
.group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px 4px;
  border-top: 1px solid var(--border);
  margin-top: 2px;
}

.group-header:first-child { border-top: none; margin-top: 0; }

.group-toggle {
  font-size: 9px;
  color: var(--text-muted);
  flex-shrink: 0;
  width: 10px;
  line-height: 1;
}

.group-name {
  flex: 1;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--accent2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.group-count {
  font-size: 10px;
  color: var(--text-muted);
  background: var(--surface2);
  padding: 0 5px;
  border-radius: 8px;
  flex-shrink: 0;
}

.btn-delete-group {
  display: none;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 5px;
  border-radius: 3px;
  font-size: 12px;
  flex-shrink: 0;
  line-height: 1;
  transition: color 0.1s, background 0.1s;
}

.group-header:hover .btn-delete-group {
  display: inline-flex;
  align-items: center;
}

.btn-delete-group:hover {
  color: var(--accent);
  background: rgba(233,69,96,0.12);
}

/* Group name chip in the header label */
.label-group {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent2);
  background: rgba(83,192,240,0.12);
  border: 1px solid rgba(83,192,240,0.25);
  border-radius: 3px;
  padding: 1px 6px;
}

/* ── Delete button (visible on hover) ────────────────────────────────────── */
.btn-delete {
  display: none;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 5px;
  border-radius: 3px;
  font-size: 13px;
  flex-shrink: 0;
  line-height: 1;
  transition: color 0.1s, background 0.1s;
}

.slide-item:hover .btn-delete {
  display: inline-flex;
  align-items: center;
}

.btn-delete:hover {
  color: var(--accent);
  background: rgba(233,69,96,0.12);
}

/* ── Content area ────────────────────────────────────────────────────────── */
#content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #111;
}

#viewport-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 16px;
  background: repeating-conic-gradient(#1c1c1c 0% 25%, #191919 0% 50%) 0 0 / 20px 20px;
}

#slide-frame-wrap {
  position: relative;
  width: var(--slide-w);
  height: var(--slide-h);
  flex-shrink: 0;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
  border-radius: 2px;
  overflow: hidden;
}

#slide-frame {
  width: var(--slide-w);
  height: var(--slide-h);
  border: none;
  display: block;
  background: #fff;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-muted);
  text-align: center;
}

.empty-state .big { font-size: 48px; }
.empty-state p    { max-width: 280px; line-height: 1.5; }
.empty-state code {
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: monospace;
  font-size: 12px;
  color: var(--accent2);
}

/* ── Log panel ───────────────────────────────────────────────────────────── */
#log-panel {
  height: var(--log-h);
  background: #0d0d0d;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

#log-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

#log-header span {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
}

#clear-log {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 3px;
}
#clear-log:hover { background: var(--surface2); color: var(--text); }

#log-entries {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 11px;
}

#log-entries::-webkit-scrollbar { width: 4px; }
#log-entries::-webkit-scrollbar-track { background: transparent; }
#log-entries::-webkit-scrollbar-thumb { background: #333; border-radius: 2px; }

.log-entry {
  display: flex;
  gap: 8px;
  padding: 2px 12px;
  line-height: 1.5;
  border-bottom: 1px solid rgba(255,255,255,0.02);
}

.log-entry:hover { background: rgba(255,255,255,0.02); }

.log-entry .log-time  { color: #555; flex-shrink: 0; }
.log-entry .log-type  { flex-shrink: 0; font-weight: 700; width: 60px; }
.log-entry.nav    .log-type { color: var(--accent2); }
.log-entry.veeva  .log-type { color: #ffd54f; }
.log-entry.reload .log-type { color: #ce93d8; }
.log-entry.warn   .log-type { color: var(--accent); }
.log-entry.info   .log-type { color: #80cbc4; }

.log-entry .log-msg { color: var(--text); word-break: break-all; }

/* ── Resize handle (log panel) ───────────────────────────────────────────── */
#log-resize {
  height: 4px;
  background: var(--border);
  cursor: ns-resize;
  flex-shrink: 0;
  transition: background 0.15s;
}
#log-resize:hover { background: var(--accent2); }

/* ── Nav arrows overlay ──────────────────────────────────────────────────── */
.nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.45);
  border: none;
  color: #fff;
  width: 32px; height: 56px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background 0.15s;
  z-index: 5;
}
.nav-arrow:hover { background: rgba(83,192,240,0.7); }
#nav-prev { left: 0; border-radius: 0 4px 4px 0; }
#nav-next { right: 0; border-radius: 4px 0 0 4px; }
.nav-arrow:disabled { opacity: 0.2; cursor: default; }
.nav-arrow:disabled:hover { background: rgba(0,0,0,0.45); }

/* ── Toast ───────────────────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--surface2);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  z-index: 100;
}
#toast.show { opacity: 1; transform: none; }

/* ── Error modal ─────────────────────────────────────────────────────────── */
#error-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
#error-overlay.show { opacity: 1; pointer-events: all; }

#error-modal {
  background: #1a1a2e;
  border: 1px solid var(--accent);
  border-top: 4px solid var(--accent);
  border-radius: 8px;
  width: 480px;
  max-width: 90vw;
  box-shadow: 0 12px 48px rgba(0,0,0,0.7);
  transform: scale(0.95) translateY(-8px);
  transition: transform 0.2s;
}
#error-overlay.show #error-modal { transform: scale(1) translateY(0); }

#error-modal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border);
}
#error-modal-icon  { font-size: 20px; flex-shrink: 0; }
#error-modal-title { font-size: 14px; font-weight: 700; color: var(--accent); flex: 1; }
#error-modal-close {
  background: none; border: none;
  color: var(--text-muted); font-size: 18px;
  cursor: pointer; padding: 0 4px; line-height: 1;
}
#error-modal-close:hover { color: var(--text); }

#error-modal-body    { padding: 16px 20px; }
#error-modal-message { font-size: 13px; color: var(--text); margin-bottom: 14px; line-height: 1.5; }
#error-modal-message code {
  background: rgba(233,69,96,0.15);
  border: 1px solid rgba(233,69,96,0.3);
  color: #ff8a9e;
  padding: 1px 6px;
  border-radius: 3px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
}

#error-modal-details {
  background: #0d0d0d;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 12px;
  margin-bottom: 14px;
}
#error-modal-details-title {
  font-size: 10px; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--text-muted); margin-bottom: 6px;
}
#error-modal-slides-list {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 11px; color: #aaa;
  max-height: 120px; overflow-y: auto; line-height: 1.7;
}
#error-modal-slides-list::-webkit-scrollbar { width: 4px; }
#error-modal-slides-list::-webkit-scrollbar-thumb { background: #333; border-radius: 2px; }
.error-slide-match { color: #4caf50; font-weight: 700; }

#error-modal-footer {
  display: flex; justify-content: flex-end;
  gap: 8px; padding: 12px 20px 16px;
  border-top: 1px solid var(--border);
}
.error-btn {
  padding: 6px 16px; border-radius: 4px;
  font-size: 12px; cursor: pointer;
  border: 1px solid var(--border);
  transition: background 0.15s;
}
.error-btn-secondary { background: var(--surface2); color: var(--text); }
.error-btn-secondary:hover { background: #1a4a7a; }
.error-btn-primary   { background: var(--accent); color: #fff; border-color: var(--accent); }
.error-btn-primary:hover { background: #c73652; }

/* ── Upload modal ────────────────────────────────────────────────────────── */
#upload-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
#upload-overlay.show { opacity: 1; pointer-events: all; }

#upload-modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 460px;
  max-width: 90vw;
  box-shadow: 0 12px 48px rgba(0,0,0,0.6);
  transform: scale(0.95) translateY(-8px);
  transition: transform 0.2s;
}
#upload-overlay.show #upload-modal { transform: none; }

#upload-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 13px;
}

#btn-close-upload {
  background: none; border: none;
  color: var(--text-muted); font-size: 16px;
  cursor: pointer; padding: 0 4px; line-height: 1;
}
#btn-close-upload:hover { color: var(--text); }

#upload-modal-body { padding: 20px; }

#drop-zone {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
#drop-zone:hover, #drop-zone.drag-over {
  border-color: var(--accent2);
  background: rgba(83,192,240,0.05);
}
.drop-icon { font-size: 28px; color: var(--accent2); margin-bottom: 10px; }
.drop-text { color: var(--text-muted); font-size: 13px; line-height: 1.6; }
.drop-text small { font-size: 11px; }

/* ── Viewer mode (client-facing URL: ?mode=viewer) ──────────────────────── */
body.viewer-mode #btn-upload        { display: none; }
body.viewer-mode #btn-zip           { display: none; }
body.viewer-mode .btn-delete        { display: none !important; }
body.viewer-mode .btn-delete-group  { display: none !important; }

/* ── Upload queue ────────────────────────────────────────────────────────── */
#upload-queue { display: none; }

#upload-queue-header {
  padding: 0 0 10px;
  font-size: 12px;
  color: var(--text-muted);
}

#upload-queue-list {
  max-height: 260px;
  overflow-y: auto;
}

#upload-queue-list::-webkit-scrollbar { width: 4px; }
#upload-queue-list::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 2px; }

.queue-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
}

.queue-item:last-child { border-bottom: none; }

.queue-name {
  flex: 1;
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}

.queue-bar-track {
  width: 72px;
  height: 3px;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
  flex-shrink: 0;
}

.queue-bar {
  height: 100%;
  width: 0%;
  background: var(--accent2);
  border-radius: 2px;
  transition: width 0.15s;
}

.queue-status {
  font-size: 11px;
  width: 72px;
  text-align: right;
  flex-shrink: 0;
  white-space: nowrap;
}

.queue-status.pending   { color: var(--text-muted); }
.queue-status.uploading { color: var(--accent2); }
.queue-status.done      { color: #4caf50; }
.queue-status.error     { color: var(--accent); cursor: help; }