/* PDF Editor */
.pe {
  --pe-accent: #2563eb;
  --pe-save: #dc2626;
  --pe-surface: #fff;
  --pe-muted: #64748b;
  --pe-border: rgba(15, 23, 42, 0.08);
  --pe-shadow: 0 8px 32px rgba(15, 23, 42, 0.1);
  max-width: 100%;
}

.pe .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Landing */
.pe-landing {
  max-width: 40rem;
  margin: 0 auto;
  text-align: center;
  padding: 0.5rem 0 2rem;
}

.pe-landing__eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--pe-muted);
  margin-bottom: 0.5rem;
}

.pe-landing__title {
  font-weight: 700;
  letter-spacing: -0.035em;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  color: #0f172a;
  margin-bottom: 0.75rem;
}

.pe-landing__lead {
  color: #475569;
  font-size: 1.02rem;
  line-height: 1.65;
  margin-bottom: 2rem;
}

.pe-drop {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  padding: 2rem 1.5rem;
  border-radius: 20px;
  border: 2px dashed #cbd5e1;
  background: var(--pe-surface);
  box-shadow: var(--pe-shadow);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.pe-drop:hover,
.pe-drop:focus-visible,
.pe-drop.pe-drop--over {
  border-color: var(--pe-accent);
  background: #f8fafc;
  outline: none;
}

.pe-drop__icon { color: var(--pe-accent); margin-bottom: 0.75rem; }
.pe-drop__title { font-weight: 700; font-size: 1.1rem; color: #0f172a; margin-bottom: 0.25rem; }
.pe-drop__hint { color: var(--pe-muted); font-size: 0.95rem; }
.pe-drop__browse { color: var(--pe-accent); font-weight: 600; text-decoration: underline; }
.pe-drop__meta { font-size: 0.82rem; color: #94a3b8; margin: 0.5rem 0 0; }
.pe-drop__input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.pe-features {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
}

.pe-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: #475569;
}

.pe-features__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  background: #eff6ff;
  color: var(--pe-accent);
  font-weight: 700;
}

/* Workspace */
.pe-workspace {
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  min-height: calc(100vh - 4rem);
  display: flex;
  flex-direction: column;
  background: #e2e8f0;
}

.pe-workspace[hidden],
.pe-landing[hidden],
.pe-pages-modal[hidden],
.pe-modal[hidden] {
  display: none !important;
}

/* Toolbars */
.pe-bar {
  background: var(--pe-surface);
  border-bottom: 1px solid var(--pe-border);
  z-index: 100;
}

.pe-bar--main {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.4rem 0.65rem;
  position: sticky;
  top: 0;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9);
}

.pe-bar__scroll {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 0.15rem;
  padding-bottom: 0.15rem;
  flex: 1 1 auto;
  min-width: 0;
  scrollbar-width: thin;
}

.pe-bar__sep {
  width: 1px;
  height: 2.5rem;
  background: #e2e8f0;
  flex-shrink: 0;
  align-self: center;
  margin: 0 0.2rem;
}

.pe-bar__context {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
  padding: 0.2rem 0;
}

.pe-bar__actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
  margin-left: auto;
}

.pe-icon-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  min-width: 3.5rem;
  padding: 0.35rem 0.45rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: #334155;
  font-size: 0.65rem;
  font-weight: 600;
  line-height: 1.1;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.1s, color 0.1s;
}

.pe-icon-btn svg {
  width: 1.15rem;
  height: 1.15rem;
}

.pe-icon-btn:hover:not(:disabled) {
  background: #f1f5f9;
  color: #0f172a;
}

.pe-icon-btn--active {
  background: #fff7ed;
  color: #c2410c;
}

.pe-icon-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.pe-select {
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 0.3rem 0.4rem;
  font-size: 0.82rem;
  background: var(--pe-surface);
}

#pe-stroke-color {
  width: 2rem;
  height: 2rem;
  padding: 0.1rem;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  cursor: pointer;
}

#pe-stroke-width {
  width: 4.5rem;
}

.pe-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

.pe-btn--sm { padding: 0.3rem 0.6rem; font-size: 0.82rem; }
.pe-btn--ghost { background: transparent; color: #475569; }
.pe-btn--ghost:hover { background: #f1f5f9; }
.pe-btn--primary { background: linear-gradient(135deg, #2563eb, #1d4ed8); color: #fff; }
.pe-btn--save { background: var(--pe-save); color: #fff; padding: 0.55rem 1.5rem; font-size: 0.95rem; }
.pe-btn--save:hover { filter: brightness(1.05); }

/* Search */
.pe-search-panel {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem 1rem;
  background: #f8fafc;
  border-bottom: 1px solid var(--pe-border);
}

.pe-search-panel input {
  flex: 1;
  max-width: 20rem;
  padding: 0.4rem 0.65rem;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
}

.pe-search-status {
  font-size: 0.88rem;
  color: var(--pe-muted);
}

/* Watermark panel */
.pe-watermark-panel {
  background: #fff;
  border-bottom: 1px solid var(--pe-border);
  padding: 0.75rem 1rem 1rem;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
}

.pe-watermark-panel[hidden] {
  display: none !important;
}

.pe-watermark-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.65rem;
  color: #0f172a;
}

.pe-watermark-panel__body {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: 0.65rem 1rem;
  align-items: end;
}

.pe-watermark-tabs {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.35rem;
}

.pe-watermark-tab {
  padding: 0.35rem 0.85rem;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #f8fafc;
  font-size: 0.85rem;
  font-weight: 600;
  color: #475569;
  cursor: pointer;
}

.pe-watermark-tab--active {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #1d4ed8;
}

.pe-watermark-fields {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: 0.65rem 1rem;
}

.pe-watermark-label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: #64748b;
}

.pe-watermark-input {
  padding: 0.4rem 0.55rem;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  font-size: 0.9rem;
}

.pe-watermark-presets {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.pe-wm-preset {
  padding: 0.25rem 0.55rem;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  background: #f8fafc;
  font-size: 0.72rem;
  font-weight: 600;
  color: #475569;
  cursor: pointer;
}

.pe-wm-preset:hover {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #1d4ed8;
}

.pe-watermark-hint {
  font-size: 0.8rem;
  color: var(--pe-muted);
  margin: 0;
}

.pe-watermark-panel__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--pe-border);
}

/* Watermark preview on page */
.pe-watermark-layer {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}

.pe-watermark-preview__text {
  position: absolute;
  left: 50%;
  top: 50%;
  font-weight: 700;
  font-family: Helvetica, Arial, sans-serif;
  white-space: nowrap;
  user-select: none;
  letter-spacing: 0.06em;
}

.pe-watermark-preview__img {
  max-height: 70%;
  object-fit: contain;
  user-select: none;
}

/* Body layout */
.pe-body {
  flex: 1;
  display: flex;
  min-height: 0;
  overflow: hidden;
}

.pe-sidebar {
  width: 10.5rem;
  flex-shrink: 0;
  background: var(--pe-surface);
  border-right: 1px solid var(--pe-border);
  display: flex;
  flex-direction: column;
  transition: width 0.2s, margin 0.2s;
}

.pe-sidebar.pe-sidebar--collapsed {
  width: 0;
  overflow: hidden;
  border: none;
}

.pe-sidebar__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.65rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pe-muted);
  border-bottom: 1px solid var(--pe-border);
}

.pe-sidebar__close {
  border: none;
  background: none;
  font-size: 1.2rem;
  color: var(--pe-muted);
  cursor: pointer;
}

.pe-thumbs {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.pe-thumb {
  position: relative;
  border: 2px solid transparent;
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  padding: 0;
  background: #f8fafc;
}

.pe-thumb--active { border-color: var(--pe-accent); }
.pe-thumb canvas { display: block; width: 100%; height: auto; }

.pe-thumb__num {
  position: absolute;
  bottom: 3px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  font-weight: 700;
  color: #fff;
  background: rgba(15, 23, 42, 0.65);
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
}

.pe-stage {
  flex: 1;
  overflow: auto;
  padding: 1.25rem 1rem 5rem;
  cursor: default;
}

.pe-canvas-shell { text-align: center; }

.pe-page {
  position: relative;
  display: inline-block;
  box-shadow: var(--pe-shadow);
  background: #fff;
  line-height: 0;
}

.pe-canvas { display: block; max-width: 100%; height: auto; }

.pe-svg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* PDF native text editing layer */
.pe-pdf-text-layer {
  position: absolute;
  inset: 0;
  z-index: 8;
  pointer-events: none;
}

.pe-pdf-text-layer:not([hidden]) {
  pointer-events: auto;
}

.pe-pdf-text-item {
  position: absolute;
  box-sizing: border-box;
  display: block;
  padding: 0 2px;
  margin: 0;
  border: 1px dashed transparent;
  border-radius: 2px;
  background: rgba(37, 99, 235, 0.06);
  color: transparent;
  cursor: text;
  line-height: 1.15;
  overflow: hidden;
  white-space: nowrap;
  text-align: left;
  font-family: Helvetica, Arial, sans-serif;
}

.pe-pdf-text-item:hover {
  border-color: #2563eb;
  background: rgba(255, 255, 255, 0.85);
  color: #0f172a;
}

.pe-pdf-text-item--on-canvas {
  background: transparent;
  border-color: rgba(37, 99, 235, 0.35);
}

.pe-pdf-text-item--on-canvas:hover {
  background: rgba(255, 255, 255, 0.5);
  border-color: #2563eb;
  color: transparent;
}

.pe-pdf-text-item--deleted {
  border-color: rgba(239, 68, 68, 0.5);
  background: transparent;
}

.pe-pdf-text-edit-input {
  position: absolute;
  z-index: 25;
  padding: 4px 6px;
  border: 2px solid #2563eb;
  border-radius: 4px;
  background: #ffffff;
  color: #0f172a;
  font-family: Helvetica, Arial, sans-serif;
  line-height: 1.15;
  text-align: left;
  resize: horizontal;
  outline: none;
  box-shadow:
    0 0 0 8px #ffffff,
    0 4px 16px rgba(37, 99, 235, 0.2);
  caret-color: #2563eb;
}

.pe-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

.pe-overlay.pe-overlay--text,
.pe-overlay.pe-overlay--stamp,
.pe-overlay.pe-overlay--link,
.pe-overlay.pe-overlay--note,
.pe-overlay.pe-overlay--sign,
.pe-overlay.pe-overlay--image {
  pointer-events: auto;
  cursor: crosshair;
}

.pe-overlay.pe-overlay--edit-text {
  pointer-events: none;
}

.pe-overlay.pe-overlay--select,
.pe-overlay.pe-overlay--eraser {
  pointer-events: auto;
  cursor: default;
}

.pe-overlay.pe-overlay--hand { pointer-events: none; }
.pe-stage:has(.pe-overlay--hand) { cursor: grab; }
.pe-stage:active:has(.pe-overlay--hand) { cursor: grabbing; }

.pe-overlay.pe-overlay--line,
.pe-overlay.pe-overlay--rect,
.pe-overlay.pe-overlay--draw,
.pe-overlay.pe-overlay--highlight,
.pe-overlay.pe-overlay--text-highlight {
  pointer-events: auto;
  cursor: crosshair;
}

.pe-markup {
  position: absolute;
  pointer-events: auto;
}

.pe-markup--selected {
  outline: 2px solid var(--pe-accent);
  outline-offset: 2px;
}

.pe-markup--text {
  white-space: pre-wrap;
  font-family: Helvetica, Arial, sans-serif;
}

.pe-markup--note {
  max-width: 10rem;
  background: #fef9c3;
  border: 1px solid #eab308;
  border-radius: 6px;
  padding: 0.35rem 0.5rem;
  font-size: 0.75rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.pe-note__pin { font-size: 0.85rem; }

.pe-text-input {
  position: absolute;
  min-width: 8rem;
  padding: 0.35rem 0.5rem;
  border: 2px solid var(--pe-accent);
  border-radius: 6px;
  background: #fff;
  z-index: 30;
  outline: none;
}

.pe-stage-hint {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--pe-muted);
}

.pe-stage-hint[hidden] { display: none; }

/* Float bar */
.pe-float {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.35rem 0.6rem;
  background: #1e293b;
  color: #f8fafc;
  border-radius: 999px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.35);
  z-index: 110;
}

.pe-float__btn {
  width: 2rem;
  height: 2rem;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: inherit;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pe-float__btn:hover:not(:disabled) { background: rgba(255, 255, 255, 0.22); }
.pe-float__btn:disabled { opacity: 0.35; cursor: not-allowed; }
.pe-float__page, .pe-float__zoom { font-size: 0.8rem; font-weight: 600; min-width: 3.2rem; text-align: center; }
.pe-float__sep { width: 1px; height: 1.2rem; background: rgba(255, 255, 255, 0.2); margin: 0 0.2rem; }

/* Manage pages modal */
.pe-pages-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  flex-direction: column;
  background: #f1f5f9;
}

.pe-bar--pages {
  flex-shrink: 0;
  padding: 0.5rem 0.75rem;
}

.pe-pages-grid {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: center;
  gap: 1.25rem;
  padding: 1.5rem;
}

.pe-page-card {
  position: relative;
  width: 11rem;
  border: 2px solid transparent;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
  cursor: pointer;
  transition: border-color 0.12s;
}

.pe-page-card--selected {
  border-color: var(--pe-accent);
}

.pe-page-card__cb {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 2;
  width: 1.1rem;
  height: 1.1rem;
}

.pe-page-card canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px 6px 0 0;
}

.pe-page-card__num {
  display: block;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--pe-muted);
  padding: 0.35rem;
}

.pe-pages-footer {
  display: flex;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background: var(--pe-surface);
  border-top: 1px solid var(--pe-border);
}

/* Signature modal */
.pe-modal {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
}

.pe-modal__panel {
  background: var(--pe-surface);
  border-radius: 16px;
  padding: 1.25rem;
  max-width: calc(100vw - 2rem);
  box-shadow: var(--pe-shadow);
}

.pe-modal__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: #0f172a;
}

#pe-sign-canvas {
  display: block;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  cursor: crosshair;
  max-width: 100%;
}

.pe-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.pe-toast {
  position: fixed;
  bottom: 5rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.65rem 1.1rem;
  background: #1e293b;
  color: #f8fafc;
  border-radius: 10px;
  font-size: 0.9rem;
  z-index: 500;
}

.pe-toast[hidden] { display: none !important; }

body:has(.pe-workspace:not([hidden])) .fc-main {
  max-width: 100%;
  padding: 0;
}

body:has(.pe-workspace:not([hidden])) .fc-footer {
  display: none;
}

@media (max-width: 900px) {
  .pe-icon-btn span { display: none; }
  .pe-icon-btn { min-width: 2.25rem; }
}