/* ============================================================
   editor.css — Editor features: gutter, focus mode, autocomplete.
   ============================================================ */

/* ---------- Line-number gutter ---------- */

#editor-gutter {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--gutter-w, 48px);
  overflow: hidden;
  direction: ltr;
  background: var(--bg);
  border-right: 1px solid var(--border-soft);
  user-select: none;
  pointer-events: none;
  z-index: 2;
}

#editor-wrap.rtl-doc #editor-gutter {
  left: auto;
  right: 0;
  border-right: none;
  border-left: 1px solid var(--border-soft);
}

#gutter-inner {
  position: relative;
  font-family: var(--font-mono);
}

.gutter-ln {
  position: absolute;
  right: 10px;
  color: var(--text-faint);
}

#editor-wrap.rtl-doc .gutter-ln {
  right: auto;
  left: 10px;
}

.gutter-ln.cur {
  color: var(--accent);
}

.gutter-measure {
  position: absolute;
  top: 0;
  left: 0;
  visibility: hidden;
  pointer-events: none;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  unicode-bidi: plaintext;
  z-index: -1;
}

#editor-wrap.gutter-on #editor,
#editor-wrap.gutter-on #editor-hilite {
  padding-left: calc(28px + var(--gutter-w, 48px));
}

#editor-wrap.rtl-doc.gutter-on #editor,
#editor-wrap.rtl-doc.gutter-on #editor-hilite {
  padding-left: 28px;
  padding-right: calc(28px + var(--gutter-w, 48px));
}

#main.preview-hidden #editor-wrap.gutter-on #editor,
#main.preview-hidden #editor-wrap.gutter-on #editor-hilite {
  padding-left: max(calc(28px + var(--gutter-w, 48px)), calc((100% - 860px) / 2));
  padding-right: max(28px, calc((100% - 860px) / 2));
}

#main.preview-hidden #editor-wrap.rtl-doc.gutter-on #editor,
#main.preview-hidden #editor-wrap.rtl-doc.gutter-on #editor-hilite {
  padding-left: max(28px, calc((100% - 860px) / 2));
  padding-right: max(calc(28px + var(--gutter-w, 48px)), calc((100% - 860px) / 2));
}

#gutter-btn.off {
  opacity: 0.45;
}

/* ---------- Focus mode ---------- */

.focus-measure {
  position: absolute;
  top: 0;
  left: 0;
  visibility: hidden;
  pointer-events: none;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  unicode-bidi: plaintext;
  z-index: -1;
}

.focus-dim {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 4;
  display: none;
  pointer-events: none;
}

#editor-wrap.focus-on .focus-dim {
  display: block;
}

.focus-dim.top {
  top: 0;
  background: linear-gradient(to bottom,
    rgba(13, 13, 15, 0.75) calc(100% - 26px), rgba(13, 13, 15, 0));
}

.focus-dim.bottom {
  bottom: 0;
  background: linear-gradient(to top,
    rgba(13, 13, 15, 0.75) calc(100% - 26px), rgba(13, 13, 15, 0));
}

body.focus-mode #sidebar,
body.focus-mode #toc-panel {
  display: none;
}

body.focus-mode #toolbar,
body.focus-mode #statusbar {
  opacity: 0.25;
  transition: opacity 0.25s ease;
}

body.focus-mode #toolbar:hover,
body.focus-mode #toolbar:focus-within,
body.focus-mode #statusbar:hover {
  opacity: 1;
}

#focus-btn.open,
#typewriter-btn.open,
#sync-scroll-btn.open {
  color: var(--accent);
  background: var(--accent-dim);
}

body:not(.focus-mode) #typewriter-btn {
  display: none;
}

/* ---------- Smart autocomplete ---------- */

.ac-mirror {
  position: absolute;
  top: 0;
  left: 0;
  visibility: hidden;
  pointer-events: none;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  unicode-bidi: plaintext;
  z-index: -1;
}

.ac-pop {
  position: absolute;
  z-index: 6;
  min-width: 140px;
  max-width: 260px;
  max-height: 176px;
  overflow-y: auto;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  padding: 3px;
}

.ac-pop.hidden {
  display: none;
}

.ac-item {
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ac-item:hover {
  background: var(--bg-panel);
}

.ac-item.sel {
  background: var(--accent-dim);
  color: var(--text);
}

.ac-item .ac-m {
  color: var(--accent);
  font-weight: 600;
}

/* ---------- Password-locked documents ---------- */

#lock-btn.locked {
  color: var(--accent);
  background: var(--accent-dim);
}

.sb-lock {
  display: inline-flex;
  vertical-align: -1px;
  margin-inline-end: 5px;
  color: var(--accent);
}

.sb-lock svg {
  width: 11px;
  height: 11px;
}

#locked-veil {
  position: absolute;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

#locked-veil.hidden {
  display: none;
}

.lv-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  max-width: 360px;
  padding: 30px 40px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-raised);
  text-align: center;
}

.lv-card > svg {
  width: 32px;
  height: 32px;
  margin-bottom: 6px;
  color: var(--text-faint);
}

.lv-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.lv-sub {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-muted);
}

#unlock-btn {
  margin-top: 12px;
  padding: 6px 24px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--code-bg-dark);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
}

#unlock-btn:hover {
  filter: brightness(1.12);
}

/* ---------- Armed delete in sidebar ---------- */

.sb-del.arm,
.sb-item:hover .sb-del.arm {
  display: flex;
  width: auto;
  padding: 0 8px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--delete);
  color: var(--white);
}