/* reader.css — menus, dialogs, highlights and the /saved page for the reader toolbar (reader.js).
   Loaded without blocking render, only on pages with a toolbar and on /saved. The toolbar buttons
   themselves are in critical.css. Colours come only from the :root tokens, so the sepia and dark
   themes recolour everything here. The dark theme flips the ink scale, so inverse surfaces (toasts, the
   highlight popup, the chosen segment) use --text as background and --paper as text, which invert in every theme. */

/* ---------- Toolbar menus (Share, Translate, Aa) ---------- */
.rb-pop{position:absolute;top:calc(100% + var(--s-2));left:0;z-index:46;width:max-content;min-width:230px;max-width:calc(100vw - 2 * var(--s-4));padding:var(--s-3);background:var(--white);color:var(--text);border:1px solid var(--stone-200);border-radius:var(--radius);box-shadow:var(--shadow-2);text-align:left}
.rb-pop-wide{width:min(460px,calc(100vw - 2 * var(--s-4)))}
.rb-pop-title{margin:0 0 var(--s-2);padding:0 var(--s-2);font-size:.75rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}
.rb-list{display:grid;gap:2px;list-style:none;margin:0;padding:0}
.rb-list li{margin:0;text-align:left}
.rb-list a,.rb-list button{display:flex;align-items:center;gap:var(--s-3);width:100%;min-height:44px;padding:var(--s-2) var(--s-3);border:0;border-radius:var(--radius-sm);background:transparent;color:var(--text);font:inherit;font-size:.9375rem;font-weight:600;line-height:1.3;text-align:left;text-decoration:none;cursor:pointer}
.rb-list a:hover,.rb-list button:hover{background:var(--ink-50);color:var(--text);text-decoration:none}
.rb-list .icon{color:var(--amber-600);flex:none}
.rb-langs a{flex-wrap:wrap;gap:0 var(--s-2)}
.rb-en{font-weight:400;font-size:.875rem;color:var(--text-muted)}
@media (min-width:480px){.rb-langs{grid-template-columns:1fr 1fr}}
.rb-pop-note{margin:var(--s-2) 0 0;padding:var(--s-3) var(--s-2) 0;border-top:1px solid var(--stone-200);font-size:.8125rem;line-height:1.45;color:var(--text-muted);text-align:left}

/* Text size and theme: two segmented radio groups (in the Aa menu and on /saved) */
.rb-display{display:grid;gap:var(--s-4);min-width:250px}
.rb-field{min-width:0;margin:0;padding:0;border:0}
.rb-field legend{margin-bottom:var(--s-2);padding:0;font-size:.75rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}
.rb-seg{display:flex;gap:4px;padding:4px;border:1px solid var(--stone-200);border-radius:999px;background:var(--stone-50)}
.rb-seg label{position:relative;flex:1 1 0;min-width:0}
.rb-seg input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}
.rb-seg span{display:flex;align-items:center;justify-content:center;min-height:36px;padding:0 var(--s-3);border-radius:999px;color:var(--text-muted);font-size:.875rem;font-weight:600;white-space:nowrap;transition:background-color .15s,color .15s}
.rb-seg label:hover span{color:var(--text)}
.rb-seg input:checked+span{background:var(--text);color:var(--paper)}
.rb-seg input:focus-visible+span{outline:3px solid var(--focus);outline-offset:2px}

/* ---------- Cite dialog (shell is .modal from site.css) ---------- */
.cite-dialog{width:min(680px,calc(100% - 2 * var(--s-4)))}
.cite-item+.cite-item{margin-top:var(--s-5)}
.cite-head{display:flex;align-items:center;justify-content:space-between;gap:var(--s-3);margin-bottom:var(--s-2)}
.cite-label{font-size:.8125rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}
.cite-head .btn-sm{min-height:36px;padding:var(--s-1) var(--s-4)}
.cite-text{margin:0;padding:var(--s-3) var(--s-4);border:1px solid var(--stone-200);border-radius:var(--radius-sm);background:var(--stone-50);color:var(--text);font-size:.9375rem;line-height:1.55;text-align:left;overflow-wrap:anywhere;-webkit-user-select:all;user-select:all}
pre.cite-text{white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Consolas,'Liberation Mono',monospace;font-size:.8125rem;line-height:1.5}

/* ---------- Highlights ---------- */
mark.pd-hl{padding:0 1px;border-radius:2px;background:var(--amber-100);background:color-mix(in srgb,var(--amber-400) 45%,transparent);color:inherit;cursor:pointer;-webkit-box-decoration-break:clone;box-decoration-break:clone}
mark.pd-hl:hover{background:color-mix(in srgb,var(--amber-400) 65%,transparent)}
mark.pd-hl:focus-visible{outline-offset:1px}
/* A highlight with a note gets a small marker after its last piece; in print the note itself appears there. */
mark.pd-hl[data-note]::after{content:"";display:inline-block;width:.45em;height:.45em;margin-left:.2em;border-radius:50%;background:var(--amber-600);vertical-align:.45em}

/* Selection popup: Highlight · Note · Copy with link, or on a highlight: Edit note · Remove */
.hl-pop{position:absolute;top:0;left:0;z-index:60;display:flex;flex-wrap:wrap;gap:2px;max-width:calc(100vw - 2 * var(--s-4));padding:4px;border:1px solid color-mix(in srgb,var(--paper) 18%,transparent);border-radius:10px;background:var(--text);color:var(--paper);box-shadow:var(--shadow-2);font-size:.9375rem;line-height:1.2;text-align:left}
.hl-pop[hidden]{display:none}
.hl-btn{display:inline-flex;align-items:center;min-height:40px;padding:0 var(--s-3);border:0;border-radius:7px;background:transparent;color:inherit;font:inherit;font-weight:600;white-space:nowrap;cursor:pointer}
.hl-btn:hover{background:color-mix(in srgb,var(--paper) 16%,transparent)}
.hl-pop :focus-visible{outline-color:var(--paper);outline-offset:-3px}
@media (pointer:coarse){.hl-btn{min-height:44px}}
/* The note editor, inside the same popup */
.hl-pop-note{flex-direction:column;flex-wrap:nowrap;gap:var(--s-2);width:min(360px,calc(100vw - 2 * var(--s-4)));padding:var(--s-3)}
.hl-note-label{font-size:.8125rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:color-mix(in srgb,var(--paper) 75%,transparent)}
.hl-note{display:block;width:100%;min-height:88px;padding:var(--s-2) var(--s-3);border:1px solid var(--stone-300);border-radius:var(--radius-sm);background:var(--paper);color:var(--text);font-size:1rem;line-height:1.45;resize:vertical}
.hl-note:focus-visible{outline:3px solid var(--amber-500);outline-offset:1px}
.hl-note-row{display:flex;align-items:center;justify-content:flex-end;gap:var(--s-2)}
.hl-count{margin-right:auto;font-size:.8125rem;color:color-mix(in srgb,var(--paper) 75%,transparent)}
.hl-btn-primary{background:var(--paper);color:var(--text)}
.hl-btn-primary:hover{background:var(--white)}

/* ---------- Section links on guide headings ---------- */
.js .guide-section h2[id]{position:relative}
.h-anchor{position:absolute;top:.1em;right:0;display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:var(--radius-sm);color:var(--text-muted);opacity:.6;transition:opacity .15s,background-color .15s}
.h-anchor:hover{opacity:1;background:var(--ink-50);color:var(--text)}
.h-anchor:focus-visible{opacity:1}
@media (max-width:1023.98px){.js .guide-section h2[id]{padding-right:36px}}
/* Wide screens: in the gutter left of the heading, shown on hover or keyboard focus */
@media (min-width:1024px){
  .h-anchor{right:auto;left:-40px;opacity:0}
  .guide-section h2:hover .h-anchor,.h-anchor:focus-visible{opacity:1}
}
@media (min-width:1024px) and (hover:none){.h-anchor{opacity:.6}}

/* ---------- Reading progress (above the sticky header) ---------- */
.read-progress{position:fixed;top:0;left:0;right:0;z-index:70;height:3px;background:var(--amber-500);transform:scaleX(0);transform-origin:0 50%;pointer-events:none}

/* ---------- Toasts: one shared role=status region ---------- */
.rb-toasts{position:fixed;left:50%;bottom:var(--s-6);z-index:80;width:max-content;max-width:calc(100vw - 2 * var(--s-4));transform:translateX(-50%);pointer-events:none}
.rb-toast{padding:var(--s-3) var(--s-5);border-radius:10px;background:var(--text);color:var(--paper);box-shadow:var(--shadow-2);font-size:.9375rem;font-weight:600;line-height:1.4;text-align:center;pointer-events:auto}
.rb-toast a,.rb-toast a:hover{color:inherit;font-weight:700;text-decoration:underline;text-decoration-color:var(--amber-500);text-decoration-thickness:2px}
.rb-toast :focus-visible{outline-color:var(--amber-500)}

/* ---------- Resume card ---------- */
.rb-resume{position:fixed;right:var(--s-6);bottom:var(--s-6);z-index:47;display:grid;grid-template-columns:1fr auto;align-items:center;gap:var(--s-3) var(--s-2);width:min(380px,calc(100vw - 2 * var(--s-4)));padding:var(--s-4) var(--s-3) var(--s-4) var(--s-5);border:1px solid var(--stone-200);border-radius:var(--radius-lg);background:var(--white);color:var(--text);box-shadow:var(--shadow-2)}
.rb-resume-text{grid-column:1;font-weight:600;line-height:1.4;text-align:left}
.rb-resume-go{grid-column:1;justify-self:start}
.rb-resume-x{grid-column:2;grid-row:1/3;align-self:start;display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:0;border-radius:50%;background:transparent;color:var(--text-muted);cursor:pointer}
.rb-resume-x:hover{background:var(--stone-100);color:var(--text)}

@media (prefers-reduced-motion:no-preference){
  .rb-toast,.rb-resume{animation:rb-in .2s ease-out}
  @keyframes rb-in{from{opacity:0;transform:translateY(8px)}}
}
/* Above the mobile quick-contact bar (64px, site.css) */
@media (max-width:719.98px){
  .rb-toasts{bottom:calc(64px + var(--s-3) + env(safe-area-inset-bottom))}
  .rb-resume{left:var(--s-4);right:var(--s-4);bottom:calc(64px + var(--s-3) + env(safe-area-inset-bottom));width:auto}
}

/* ---------- /saved ---------- */
.saved-empty{padding:var(--s-8) var(--s-6);border:1px dashed var(--stone-300);border-radius:var(--radius-lg);background:var(--white)}
.saved-empty[hidden]{display:none}
.saved-empty h2{font-size:1.5rem}
.saved-empty p{margin-top:var(--s-3);max-width:var(--measure)}
.saved-start{font-weight:600;color:var(--text)}
.saved-popular{margin:var(--s-2) 0 0;padding-left:1.2em}
.saved-popular li+li{margin-top:var(--s-1)}
.saved-noscript{padding:var(--s-4) var(--s-5);border-radius:var(--radius);background:var(--amber-50);border:1px solid var(--amber-100)}
.saved-block+.saved-block{margin-top:var(--s-12)}
.saved-block>h2{display:flex;align-items:center;gap:var(--s-2);font-size:1.5rem}
.saved-block>h2:focus{outline:none}
.saved-block>h2:focus-visible{outline:3px solid var(--focus)}
.saved-count{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:24px;padding:0 var(--s-2);border-radius:999px;background:var(--stone-100);color:var(--text-muted);font-family:var(--font-body);font-size:.8125rem;font-weight:700}
.saved-list{list-style:none;margin:var(--s-4) 0 0;padding:0;border-top:1px solid var(--stone-200)}
.saved-list li{margin:0}
.saved-item{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--s-4);padding:var(--s-4) 0;border-bottom:1px solid var(--stone-200);text-align:left}
.saved-main{flex:1 1 auto;min-width:0}
.saved-main p{text-align:left}
.saved-kind{display:block;margin-bottom:2px;font-size:.75rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--amber-700)}
.saved-title{color:var(--text);font-weight:600;font-size:1.125rem;line-height:1.35;text-decoration:none}
.saved-title:hover{color:var(--text);text-decoration:underline}
.saved-meta{display:flex;flex-wrap:wrap;align-items:center;gap:var(--s-1) var(--s-3);margin-top:var(--s-1);font-size:.9375rem;color:var(--text-muted)}
.saved-meta a{color:inherit}
.saved-continue{flex:none}
.saved-remove{flex:none;display:inline-flex;align-items:center;min-height:40px;padding:0 var(--s-4);border:1px solid var(--stone-200);border-radius:999px;background:transparent;color:var(--text-muted);font:inherit;font-size:.875rem;font-weight:600;cursor:pointer}
.saved-remove:hover{border-color:var(--stone-300);background:var(--stone-50);color:var(--text)}
.saved-group+.saved-group{margin-top:var(--s-8)}
.saved-group-title{margin-top:var(--s-5);font-size:1.1875rem}
.saved-group-title a{color:var(--text);text-decoration:none}
.saved-group-title a:hover{text-decoration:underline}
.saved-hl-list{margin-top:var(--s-3)}
.saved-quote{margin:0;padding:var(--s-1) 0 var(--s-1) var(--s-4);border-left:3px solid var(--amber-500);color:var(--text);white-space:pre-line}
.saved-quote p{display:inline;padding:0 1px;background:var(--amber-100);background:color-mix(in srgb,var(--amber-400) 30%,transparent);-webkit-box-decoration-break:clone;box-decoration-break:clone}
.saved-note{margin-top:var(--s-2);padding:var(--s-2) var(--s-3);border-radius:var(--radius-sm);background:var(--stone-50);border:1px solid var(--stone-200);font-size:.9375rem;white-space:pre-wrap;overflow-wrap:anywhere}
.saved-orphan{display:inline-block;padding:0 var(--s-2);border:1px solid var(--amber-500);border-radius:999px;background:var(--amber-50);color:var(--text);font-size:.8125rem;font-weight:600}
.is-orphan .saved-quote{border-left-style:dashed}
.saved-tools [hidden],.saved-warn[hidden]{display:none}
.saved-tools{display:flex;flex-wrap:wrap;gap:var(--s-3);margin-top:var(--s-4)}
.saved-clear.is-armed{border-color:var(--danger);background:var(--danger-bg);color:var(--text)}
.saved-warn{margin-top:var(--s-3);font-size:.9375rem;color:var(--text-muted);text-align:left}
.saved-display{margin-top:var(--s-12);padding:var(--s-6);border:1px solid var(--stone-200);border-radius:var(--radius-lg);background:var(--white)}
.saved-display h2{font-size:1.25rem}
.saved-display>p{margin:var(--s-1) 0 var(--s-5);color:var(--text-muted);font-size:.9375rem;text-align:left}
.saved-display .rb-display{max-width:460px}
@media (max-width:599.98px){
  .saved-item{flex-wrap:wrap}
  .saved-hl .saved-main{flex-basis:100%}
}

/* ---------- Print ---------- */
@media print{
  .reader-bar,.rb-pop,#cite-dialog,.hl-pop,.h-anchor,.read-progress,.rb-toasts,.rb-toast,.rb-resume{display:none!important}
  .js .guide-section h2[id]{padding-right:0}
  .print-meta{display:block!important;margin-top:24pt;padding-top:8pt;border-top:1px solid var(--stone-300);font-size:10pt;color:var(--text-muted);text-align:left}
  mark.pd-hl{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  mark.pd-hl[data-note]::after{content:" [Note: " attr(data-note) "]";display:inline;width:auto;height:auto;margin:0;border-radius:0;background:none;vertical-align:baseline;font-style:italic}
  .saved-remove,.saved-tools,.saved-warn,.saved-display,.saved-continue{display:none!important}
}