/* ═══════════════════════════════════════════
   PEPPY PDF MINI EDITOR — style.css
   Modern workspace-based PDF editor UI
═══════════════════════════════════════════ */

/* ── CSS Variables ── */
:root {
  --page-bg:  #f4f4f5;
  --bg:       #ffffff;
  --bg2:      #f0f0f0;
  --bg3:      #f8f8f8;
  --border:   #d4d4d4;
  --text:     #1e1e1e;
  --text2:    #666666;
  --accent:   #5646F5;
  --accent2:  #4535e0;
  --accent-light: rgba(86,70,245,0.10);
  --sidebar:  #f7f7f8;
  --surface:  #ffffff;
  --surface2: #f0f0f0;
  --danger:   #e05252;
  --success:  #4caf50;
  --warn:     #f59e0b;
  --thumb-size: 180px;
}

[data-theme="dark"] {
  --page-bg:  #141416;
  --bg:       #1e1e1e;
  --bg2:      #252526;
  --bg3:      #2d2d30;
  --border:   #3e3e42;
  --text:     #cccccc;
  --text2:    #888888;
  --accent:   #8b83f7;
  --accent2:  #5646F5;
  --accent-light: rgba(139,131,247,0.12);
  --sidebar:  #1c1c1e;
  --surface:  #252526;
  --surface2: #2d2d30;
  --danger:   #f07070;
  --success:  #6bcf6b;
  --warn:     #fbbf24;
}

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

body {
  font-family: 'Segoe UI', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: var(--page-bg);
  font-size: 14px;
  color: var(--text);
}

/* ═══ TOP BAR ═══ */
.top-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  height: 44px;
  background: #5646F5;
  color: #fff;
  flex-shrink: 0;
  z-index: 20;
}
.top-bar-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.top-bar-back {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 1.1rem;
  line-height: 1;
}
.top-bar-back:hover { color: #fff; }
.top-bar-title {
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
}
.top-bar-center {
  flex: 1;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.85;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.top-bar-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.top-btn {
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}
.top-btn:hover { background: rgba(255,255,255,0.3); }

/* ═══ LAYOUT ═══ */
.editor-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ═══ ACTION SIDEBAR ═══ */
.action-sidebar {
  width: 200px;
  flex-shrink: 0;
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 8px 0;
}
.action-section {
  padding: 4px 10px 8px;
}
.action-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text2);
  padding: 8px 6px 4px;
}
.action-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 7px 10px;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 0.82rem;
  font-family: inherit;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.12s;
  text-align: left;
}
.action-btn:hover {
  background: var(--accent-light);
  color: var(--accent);
}
.action-btn .action-icon {
  font-size: 1rem;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}
.action-btn-primary {
  background: var(--accent) !important;
  color: #fff !important;
  font-weight: 600;
}
.action-btn-primary:hover {
  background: var(--accent2) !important;
  color: #fff !important;
}

/* ═══ WORKSPACE ═══ */
.workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* Empty state */
.workspace-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 2rem;
  text-align: center;
}
.empty-icon {
  font-size: 4rem;
  opacity: 0.3;
}
.workspace-empty h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}
.workspace-empty p {
  color: var(--text2);
  font-size: 0.95rem;
  max-width: 400px;
}
.empty-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}
.empty-btn {
  padding: 10px 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s;
}
.empty-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.empty-btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
}
.empty-btn.primary:hover {
  background: var(--accent2);
}
.drop-hint {
  margin-top: 16px;
  color: var(--text2);
  font-size: 0.85rem;
  border: 2px dashed var(--border);
  padding: 20px 40px;
  border-radius: 12px;
  transition: border-color 0.2s, background 0.2s;
}
.drop-hint.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
}

/* Workspace toolbar */
.workspace-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 8px;
  flex-wrap: wrap;
}
.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
}
.tb-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 10px;
  border-radius: 5px;
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.12s;
}
.tb-btn:hover {
  background: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}
.tb-sep {
  width: 1px;
  height: 18px;
  background: var(--border);
  margin: 0 4px;
}
.tb-info {
  font-size: 0.82rem;
  color: var(--text2);
}
.tb-zoom-label {
  font-size: 0.8rem;
  color: var(--text2);
  min-width: 36px;
  text-align: center;
}

/* ═══ PAGE GRID ═══ */
.page-grid {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-content: flex-start;
}

.page-thumb {
  width: var(--thumb-size);
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: grab;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
  position: relative;
  user-select: none;
}
.page-thumb:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.page-thumb.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light), 0 4px 16px rgba(86,70,245,0.2);
}
.page-thumb.drag-over {
  border-color: var(--warn);
  transform: scale(1.02);
}
.page-thumb.dragging {
  opacity: 0.4;
}
.page-thumb-canvas {
  width: 100%;
  display: block;
  background: #fff;
}
.page-thumb-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 8px;
  font-size: 0.75rem;
  color: var(--text2);
  border-top: 1px solid var(--border);
  background: var(--bg2);
}
.page-thumb-label .page-num {
  font-weight: 600;
  color: var(--text);
}
.page-thumb-label .page-dims {
  font-size: 0.68rem;
}
.page-thumb-check {
  position: absolute;
  top: 6px;
  left: 6px;
  width: 22px;
  height: 22px;
  border-radius: 5px;
  border: 2px solid rgba(255,255,255,0.7);
  background: rgba(0,0,0,0.3);
  color: #fff;
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: background 0.12s;
}
.page-thumb.selected .page-thumb-check {
  background: var(--accent);
  border-color: var(--accent);
}

/* ═══ DIALOGS ═══ */
/* Password unlock dialog must sit above any other open dialog */
#dlg-pdf-password { z-index: 210; }

.dialog-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(2px);
}
.dialog {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 420px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.dialog-header h3 {
  font-size: 1rem;
  font-weight: 700;
}
.dialog-close {
  background: none;
  border: none;
  color: var(--text2);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}
.dialog-close:hover {
  background: var(--bg2);
  color: var(--text);
}
.dialog-body {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.dialog-body label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--text2);
  font-weight: 500;
}
.dialog-body input[type="text"],
.dialog-body input[type="number"],
.dialog-body input[type="password"],
.dialog-body select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.88rem;
  font-family: inherit;
}
.dialog-body input[type="text"]:focus,
.dialog-body input[type="number"]:focus,
.dialog-body input[type="password"]:focus,
.dialog-body select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light);
}
.dialog-body input[type="color"] {
  width: 50px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  background: var(--bg);
}
.dialog-body input[type="range"] {
  accent-color: var(--accent);
}
.dialog-body input[type="radio"] {
  accent-color: var(--accent);
  margin-right: 4px;
}
.dialog-body label:has(input[type="radio"]) {
  flex-direction: row;
  align-items: center;
  gap: 6px;
}
.dlg-info {
  font-size: 0.82rem;
  color: var(--text2);
  line-height: 1.5;
}
.crop-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
}
.dlg-btn {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg2);
  color: var(--text);
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.12s;
}
.dlg-btn:hover {
  background: var(--bg3);
}
.dlg-btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
}
.dlg-btn.primary:hover {
  background: var(--accent2);
}

/* ═══ TOAST ═══ */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 24px;
  border-radius: 10px;
  font-size: 0.88rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s, opacity 0.3s;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
.toast.error {
  border-color: var(--danger);
  color: var(--danger);
}
.toast.success {
  border-color: var(--success);
  color: var(--success);
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
  .action-sidebar {
    width: 56px;
    overflow-x: hidden;
  }
  .action-section-title {
    font-size: 0;
    padding: 4px;
  }
  .action-btn {
    justify-content: center;
    padding: 8px 4px;
    gap: 0;
    font-size: 0;
  }
  .action-btn .action-icon {
    font-size: 1.15rem;
  }
  .page-grid {
    padding: 12px;
    gap: 10px;
  }
  .top-bar-title {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  :root {
    --thumb-size: 120px;
  }
  .top-bar-center { display: none; }
  .empty-actions {
    flex-direction: column;
  }
}

/* ═══ SCROLLBAR ═══ */
.action-sidebar::-webkit-scrollbar,
.page-grid::-webkit-scrollbar,
.reader-canvas-wrap::-webkit-scrollbar {
  width: 6px;
}
.action-sidebar::-webkit-scrollbar-thumb,
.page-grid::-webkit-scrollbar-thumb,
.reader-canvas-wrap::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

/* ═══ DISABLED BUTTONS ═══ */
.action-btn[disabled] {
  opacity: 0.4;
  pointer-events: none;
}

/* ═══ TOOLBAR CENTER / VIEW TOGGLE ═══ */
.toolbar-center {
  display: flex;
  align-items: center;
}
.view-toggle {
  display: flex;
  background: var(--bg2);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.vt-btn {
  background: transparent;
  border: none;
  color: var(--text2);
  padding: 4px 12px;
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.vt-btn:hover {
  color: var(--text);
  background: var(--accent-light);
}
.vt-btn.active {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

/* ═══ READER VIEW ═══ */
.reader-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.reader-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.reader-page-info,
.reader-zoom-label {
  font-size: 0.82rem;
  color: var(--text2);
  min-width: 60px;
  text-align: center;
}
.reader-canvas-wrap {
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px;
  position: relative;
  background: var(--bg2);
}
#reader-canvas {
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
  background: #fff;
  max-width: 100%;
  cursor: default;
}
.redact-overlay {
  position: absolute;
  pointer-events: none;
}
.redact-overlay.active {
  pointer-events: auto;
  cursor: crosshair;
}
.redact-overlay rect {
  fill: #000;
  opacity: 0.85;
  stroke: var(--danger);
  stroke-width: 1;
}
.redact-toggle.active {
  background: var(--danger) !important;
  color: #fff !important;
  border-color: var(--danger) !important;
}

/* ═══ DOCUMENT INFO STATS ═══ */
.doc-info-stats {
  padding: 10px;
  background: var(--bg2);
  border-radius: 6px;
  font-size: 0.82rem;
  color: var(--text2);
  line-height: 1.8;
}

/* ═══ EXPORT INFO ═══ */
.export-info {
  padding: 8px 10px;
  background: var(--bg2);
  border-radius: 6px;
  font-size: 0.82rem;
  color: var(--text2);
  line-height: 1.6;
}

/* ═══ GRID NAV ═══ */
.grid-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 16px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  flex-wrap: wrap;
}

/* ═══ READER PAGE INPUT ═══ */
.reader-page-input {
  width: 52px;
  padding: 3px 6px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.82rem;
  font-family: inherit;
  text-align: center;
}
.reader-page-input:focus {
  outline: none;
  border-color: var(--accent);
}
.reader-page-total {
  font-size: 0.82rem;
  color: var(--text2);
}

/* ═══ MERGE DIALOG ═══ */
.dialog-lg {
  width: 540px;
}
.merge-drop-zone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  color: var(--text2);
}
.merge-drop-zone:hover,
.merge-drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
}
.merge-drop-icon {
  font-size: 2.5rem;
  margin-bottom: 8px;
}
.merge-file-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 240px;
  overflow-y: auto;
  margin-top: 12px;
}
.merge-file-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.85rem;
}
.mfi-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}
.mfi-size {
  color: var(--text2);
  font-size: 0.78rem;
  flex-shrink: 0;
}
.mfi-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  width: 26px;
  height: 26px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.12s;
}
.mfi-btn:hover:not(:disabled) {
  background: var(--accent-light);
  color: var(--accent);
}
.mfi-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

/* ═══ PASSWORD & LOCK SECTIONS ═══ */
.pl-section {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pl-section-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ═══ EXPORT OPTIONS ═══ */
.export-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
  background: var(--bg2);
  border-radius: 8px;
}
.export-opt {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: 8px !important;
  font-size: 0.88rem !important;
  color: var(--text) !important;
  font-weight: 400 !important;
  cursor: pointer;
}
.export-opt input[type="checkbox"] {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

/* ═══ DANGER BUTTON ═══ */
.danger-btn {
  color: var(--danger) !important;
  border-color: var(--danger) !important;
}
.danger-btn:hover {
  background: rgba(224,82,82,0.1) !important;
}

/* ═══ DIALOG FOOTER WRAP ═══ */
.dialog-footer-wrap {
  flex-wrap: wrap;
  gap: 8px;
}

/* ═══ DIALOG TABS ═══ */
.dialog-tabs {
  display: flex;
  gap: 2px;
  padding: 0 16px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  overflow-x: auto;
}
.dtab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text2);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.12s, border-color 0.12s;
}
.dtab:hover { color: var(--text); }
.dtab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.dialog-footer-inline {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 14px;
}

/* ═══ RESPONSIVE ADDITIONS ═══ */
@media (max-width: 768px) {
  .reader-nav { flex-wrap: wrap; justify-content: center; }
  .reader-canvas-wrap { padding: 12px; }
  .dialog-lg { width: 95vw; }
}
@media (max-width: 480px) {
  .view-toggle { width: 100%; }
  .vt-btn { flex: 1; text-align: center; }
}