/* ═══════════════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

/* ═══════════════════════════════════════════════════
   SIDEBAR BRAND
═══════════════════════════════════════════════════ */
#_sd_toolbar-brand {
  cursor: pointer;
  flex-shrink: 0;
  border-radius: var(--radius);
}
.sdocs-sidebar-mark {
  display: none;
  flex: 0 0 auto;
}
.toolbar-brand-text { display: none; }
.toolbar-brand-full {
  display: inline;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.toolbar-brand-short { display: none; }
.toolbar-brand-tiny { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-2);
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-ui);
  line-height: 1;
  transition: background .12s, border-color .12s, color .12s, box-shadow .12s;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}
.btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn:active { background: var(--bg-active); }
.btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-inv);
  box-shadow: 0 1px 3px rgba(37,99,235,.25);
}
.btn.ghost {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  color: var(--text-2);
}
.btn.ghost:hover {
  background: var(--bg-hover);
  border-color: var(--border);
  color: var(--text);
}


/* ═══════════════════════════════════════════════════
   SAFARI BANNER (Bridge mode unsupported)
═══════════════════════════════════════════════════ */
#_sd_safari-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  background: var(--bg);
  color: var(--text);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  line-height: 1.4;
  flex-shrink: 0;
}
#_sd_safari-banner[hidden] { display: none; }

.sd-safari-banner-text { flex: 1; color: var(--text); }
.sd-safari-banner-dismiss {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-2);
  width: 24px;
  height: 24px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  flex-shrink: 0;
}
.sd-safari-banner-dismiss:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--bg-hover);
}

/* ═══════════════════════════════════════════════════
   MAIN LAYOUT
═══════════════════════════════════════════════════ */
#_sd_main {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════
   SITE SIDEBAR
═══════════════════════════════════════════════════ */
#_sd_sidebar {
  flex: 0 0 var(--sdocs-sidebar-current-width);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  position: relative;
  z-index: 20;
  transition: flex-basis .3s cubic-bezier(.4,0,.2,1);
}
#_sd_sidebar .sdocs-short-link-only { display: none; }
html.sdocs-short-link-visit #_sd_sidebar .sdocs-sidebar-section.sdocs-short-link-only { display: block; }
html.sdocs-short-link-visit #_sd_sidebar .doc-site-action.sdocs-short-link-only { display: flex; }
#_sd_sidebar .doc-site-menu[open] .doc-site-menu-button {
  background: var(--bg-hover);
  border-color: var(--border);
  color: var(--text);
}
#_sd_sidebar #_sd_btn-library { margin-left: 0; }
#_sd_sidebar .sdocs-sidebar-preview[hidden] { display: none; }
.sdocs-sidebar-actions {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.sdocs-sidebar-preview-entry {
  width: 100%;
  min-height: 28px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-2);
  font: var(--sdocs-sidebar-text-weight) var(--sdocs-sidebar-font-size)/1.3 var(--sdocs-sidebar-font-family);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}
.sdocs-sidebar-preview-entry:hover {
  background: var(--bg-hover);
  color: var(--text);
}
.sdocs-sidebar-count {
  margin-left: auto;
  color: var(--text-3);
  font-size: var(--sdocs-sidebar-font-size);
  font-variant-numeric: tabular-nums;
}
.sdocs-sidebar-preview-label {
  margin: 8px 10px 3px;
  color: var(--text-3);
  font: var(--sdocs-sidebar-text-weight) var(--sdocs-sidebar-font-size)/1.3 var(--sdocs-sidebar-font-family);
}
.sdocs-sidebar-preview-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.sdocs-sidebar-preview-entry {
  display: block;
  padding: 5px 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sdocs-sidebar-preview-empty {
  display: block;
  padding: 5px 10px 7px;
  color: var(--text-3);
  font: 400 var(--sdocs-sidebar-font-size)/1.45 var(--sdocs-sidebar-font-family);
}
.sdocs-sidebar-data-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 32px;
  padding: 5px 10px;
  color: var(--text);
  font: 400 var(--sdocs-sidebar-font-size)/1.4 var(--sdocs-sidebar-font-family);
}
.sdocs-sidebar-data-status[hidden] { display: none; }
.sdocs-sidebar-data-status button {
  flex: 0 0 auto;
  min-height: 28px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  color: var(--text);
  font: var(--sdocs-sidebar-text-weight) var(--sdocs-sidebar-font-size)/1.3 var(--sdocs-sidebar-font-family);
  cursor: pointer;
}
.sdocs-sidebar-data-status button:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}
.sdocs-sidebar-library-fill {
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding-bottom: 3px;
}
.sdocs-sidebar-library-scroll {
  overflow: visible;
}
.sdocs-sidebar-tag-groups {
  display: flex;
  flex-direction: column;
}
.sdocs-sidebar-tag-group {
  margin: 7px 0 0;
  padding: 6px 0;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
}
.sdocs-sidebar-group-tags {
  gap: 4px;
  padding-top: 4px;
  padding-bottom: 2px;
}
.sdocs-sidebar-library-subsection.is-expanded > .sdocs-sidebar-library-row {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.sdocs-sidebar-library-toggle .sdocs-sidebar-count {
  margin-left: auto;
}
.sdocs-sidebar-library-chevron {
  flex: 0 0 auto;
  color: var(--text-3);
  transition: transform .18s cubic-bezier(.4,0,.2,1);
}
.sdocs-sidebar-library-subsection.is-expanded > .sdocs-sidebar-library-row .sdocs-sidebar-library-chevron {
  transform: rotate(90deg);
}
.sdocs-sidebar-subsection-content {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transform: translateY(-2px);
  pointer-events: none;
  transition: grid-template-rows .3s cubic-bezier(.4,0,.2,1),
              opacity .18s ease,
              transform .3s cubic-bezier(.4,0,.2,1);
}
.sdocs-sidebar-library-subsection.is-expanded > .sdocs-sidebar-subsection-content {
  grid-template-rows: 1fr;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.sdocs-sidebar-subsection-clip {
  min-height: 0;
  overflow: hidden;
}
.sdocs-sidebar-subsection-clip > :first-child { margin: 2px 0 5px; }
.sdocs-sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 0 6px 4px;
}
.sdocs-sidebar-tag {
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  min-height: 23px;
  padding: 3px 7px;
  border: 1px solid var(--accent-text);
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent-text);
  font: var(--sdocs-sidebar-text-weight) var(--sdocs-sidebar-font-size)/1 var(--sdocs-sidebar-font-family);
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sdocs-sidebar-tag:hover {
  color: var(--accent-text);
  background: color-mix(in srgb, var(--accent) 16%, var(--bg-input));
}
.sdocs-sidebar-preview-entry[aria-busy="true"] { opacity: .55; }
#_sd_sidebar .doc-site-menu { width: 100%; }
#_sd_sidebar .doc-site-menu-button { padding-right: 8px; }
#_sd_sidebar .sdocs-sidebar-chevron {
  margin-left: auto;
  color: var(--text-3);
  transition: transform .18s cubic-bezier(.4,0,.2,1);
}
#_sd_sidebar .doc-site-menu[open] .sdocs-sidebar-chevron { transform: rotate(90deg); }
#_sd_sidebar .doc-site-menu-panel {
  position: absolute;
  top: auto;
  right: auto;
  left: calc(100% + 10px);
  bottom: 0;
  min-width: 190px;
  background: var(--bg-input);
  box-shadow: var(--shadow-md);
}
#_sd_sidebar .doc-site-menu-panel :is(a, button) {
  font-size: var(--sdocs-sidebar-font-size);
}

/* ═══════════════════════════════════════════════════
   LEFT PANEL
═══════════════════════════════════════════════════ */
#_sd_left {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-input);
  position: relative;
}
#_sd_mobile-header { display: contents; }
#_sd_mobile-header-spacer { display: none; }
/* Document actions sit in a quiet top rail above the scrolling page. */
#_sd_left-toolbar {
  position: relative;
  z-index: 6;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--ui-toolbar-height);
  padding: 0 12px;
  background: var(--bg-input);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
  white-space: nowrap;
}
.sdocs-mobile-toolbar-scroll {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sdocs-mobile-toolbar-brand,
.sdocs-mobile-menu-button { display: none; }

.toggle-group {
  display: flex;
  background: none;
  border: none;
  border-radius: 999px;
  overflow: hidden;
  padding: 2px;
  gap: 2px;
}
#_sd_left-toolbar .toggle-group .btn {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 999px;
  box-shadow: none;
  background: transparent;
  padding: 0;
  border: 1px solid transparent;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
#_sd_left-toolbar .toggle-group .btn.active {
  border-color: var(--border);
  background: transparent;
  color: var(--text);
  box-shadow: none;
}
#_sd_left-toolbar .toggle-group .btn:hover:not(.active) {
  background: var(--bg-hover);
  border-color: transparent;
  color: var(--text);
}

/* Hamburger collapses the last few toggle-group buttons.
   Slides open with the same curve as the right-side panels
   (panel.css: width .32s + opacity .25s on #_sd_export-panel). */
.toggle-group-collapsible {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  /* Negative margin absorbs the parent's gap so a closed group
     leaves no dead space between the hamburger and the separator. */
  margin-right: -2px;
  transition: max-width .32s cubic-bezier(.4,0,.2,1),
              opacity .25s ease,
              margin-right .32s cubic-bezier(.4,0,.2,1);
}
.toggle-group-collapsible.open {
  /* Generous enough for the 4 hidden buttons + their gaps,
     with headroom if a future button is added inside. */
  max-width: 240px;
  opacity: 1;
  pointer-events: auto;
  margin-right: 0;
}
/* Icon swap: menu by default, X when expanded */
#_sd_btn-overflow .icon-x { display: none; }
#_sd_btn-overflow[aria-expanded="true"] .icon-menu { display: none; }
#_sd_btn-overflow[aria-expanded="true"] .icon-x { display: inline-flex; }
/* Fold/unfold icon swap on the expand-all toggle */
#_sd_btn-fold .icon-fold { display: none; }
#_sd_btn-fold.is-open .icon-unfold { display: none; }
#_sd_btn-fold.is-open .icon-fold { display: inline-flex; }
/* Keep the standard hover fill while open so the X reads as the control for
   the expanded group, without borrowing the border used by selected modes. */
#_sd_left-toolbar .toggle-group #_sd_btn-overflow[aria-expanded="true"] {
  border-color: transparent;
  background: var(--bg-hover);
  color: var(--text);
}
#_sd_left-toolbar .toggle-group #_sd_btn-overflow[aria-expanded="true"]:hover {
  background: var(--bg-hover);
  color: var(--text);
}

#_sd_btn-library svg { flex: 0 0 auto; }

.doc-site-nav {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  min-width: 0;
}
.doc-site-action {
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-2);
  font: 500 11.5px var(--font-ui);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
}
.doc-site-action:hover,
.doc-site-menu-button:hover,
.doc-site-menu[open] .doc-site-menu-button {
  background: var(--bg-input);
  border-color: var(--border-strong);
  color: var(--text);
}
.doc-site-menu { position: relative; }
.doc-site-menu[hidden] { display: none; }
.doc-site-menu summary { list-style: none; }
.doc-site-menu summary::-webkit-details-marker { display: none; }
.doc-site-menu-button { width: 30px; padding: 4px; }
.doc-site-menu-panel {
  position: fixed;
  z-index: 150;
  top: 38px;
  right: 12px;
  min-width: 172px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-input);
  box-shadow: var(--shadow);
}
.doc-site-menu-panel a,
.doc-site-menu-panel button {
  width: 100%;
  min-height: 34px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--text);
  font: 500 12px var(--font-ui);
  line-height: 1.25;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}
.doc-site-menu-panel :is(a, button):hover { background: var(--bg-hover); }
.doc-site-menu-panel :is(a, button) svg { display: block; flex: 0 0 auto; }
.doc-site-menu-panel form { margin: 0; }
.doc-site-menu-panel .nav-menu-separator {
  height: 1px;
  margin: 5px 4px;
  background: var(--border-subtle);
}
.doc-site-menu-panel .nav-menu-mobile-only { display: none; }
.doc-site-menu-button:focus-visible,
.doc-site-menu-panel :is(a, button):focus-visible,
.doc-site-action:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.toolbar-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  background: none;
  color: var(--text-3);
  cursor: pointer;
  border-radius: var(--radius-sm);
  padding: 0;
  transition: color .12s, background .12s;
  flex-shrink: 0;
}
@media (hover: hover) {
  .toolbar-icon-btn:hover {
    color: var(--text-2);
    background: var(--bg-hover);
  }
}

#_sd_content-area {
  flex: 1;
  overflow: auto;
  position: relative;
  background-color: #FFFFFF;
  outline: none;
}
body.sdocs-reader-shell > #_sd_statusbar { display: none; }
html[data-theme="dark"] #_sd_content-area {
  background-color: #2c2a26;
}

/* drag overlay */
#_sd_content-area.drag-over::after {
  content: 'Drop file to load';
  position: absolute;
  inset: 0;
  background: rgba(37,99,235,.06);
  border: 2px dashed var(--accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 500;
  color: var(--accent);
  pointer-events: none;
  z-index: 10;
  margin: 8px;
}

/* ═══════════════════════════════════════════════════
   RAW TEXTAREA
═══════════════════════════════════════════════════ */
#_sd_raw {
  display: none;
  width: 100%;
  height: 100%;
  padding: 40px 48px;
  background: var(--bg-input);
  color: var(--text);
  border: none;
  resize: none;
  font-family: 'JetBrains Mono', 'Fira Mono', monospace;
  font-size: 13px;
  line-height: 1.7;
  outline: none;
}

/* ═══════════════════════════════════════════════════
   DIVIDER (resize handle aesthetic)
═══════════════════════════════════════════════════ */
#_sd_divider {
  width: 0;
  background: var(--border);
  flex-shrink: 0;
  transition: width .32s cubic-bezier(.4,0,.2,1);
}
body.style-mode #_sd_divider,
body.export-mode #_sd_divider { width: 1px; }

/* Shared toolbar tooltip. One element in <body>, JS-positioned per target,
   so it escapes the toolbar's overflow:hidden clipping. Caret is the ::before
   triangle pointing back at the icon above. */
.sdoc-tooltip {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  padding: 5px 9px;
  font-family: var(--font-ui);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: -0.005em;
  line-height: 1.4;
  color: var(--bg-input);
  background: var(--text);
  border-radius: 5px;
  max-width: 190px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-2px);
  transition: opacity .15s ease, transform .15s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}
.sdoc-tooltip.show {
  opacity: 1;
  transform: translateY(0);
}
.sdoc-tooltip::before {
  content: '';
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 4px 4px;
  border-color: transparent transparent var(--text);
}