/* Редактор C++ поверх страницы: писать, запускать, показывать.
   Компиляция удалённая — на GitHub Pages своего компилятора нет. */

.ed-wrap{position:fixed;inset:0;z-index:25;display:none;background:rgba(0,0,0,.45);
  backdrop-filter:blur(2px);padding:clamp(10px,2vh,28px)}
body.ed-on .ed-wrap{display:block}
body.ed-on{overflow:hidden}

.ed-panel{height:100%;max-width:1500px;margin:0 auto;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  box-shadow:0 24px 70px -20px rgba(0,0,0,.6);overflow:hidden}
.ed-head{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:9px 12px;
  border-bottom:1px solid var(--line);background:var(--surface-2)}
.ed-head .ttl{font-family:Newsreader,serif;font-size:1.05rem;color:var(--ink);margin-right:4px}
.ed-head .grow{flex:1}
.ed-head button,.ed-head select{height:32px;padding:0 12px;border-radius:8px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);cursor:pointer;font:inherit;font-size:.82rem}
.ed-head button:hover{border-color:var(--accent);color:var(--accent)}
.ed-head button.pri{background:var(--accent);border-color:var(--accent);color:#fff}
.ed-head button.pri:hover{filter:brightness(1.08);color:#fff}
:root[data-theme="dark"] .ed-head button.pri{color:#0d121a}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .ed-head button.pri{color:#0d121a}}
.ed-head select{max-width:230px}

.ed-body{flex:1;display:grid;grid-template-columns:1fr;min-height:0}
@media(min-width:900px){.ed-body{grid-template-columns:1.45fr 1fr}}
.ed-col{display:flex;flex-direction:column;min-height:0;min-width:0}
.ed-col+.ed-col{border-top:1px solid var(--line)}
@media(min-width:900px){.ed-col+.ed-col{border-top:none;border-left:1px solid var(--line)}}
.ed-lbl{font-size:.66rem;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-3);
  font-weight:600;padding:7px 12px 5px;background:var(--surface-2);border-bottom:1px solid var(--line-soft)}

.ed-code{flex:1;display:flex;min-height:0;background:var(--surface-2)}
.ed-mon{flex:1;min-height:0;display:none}
.ed-nums{white-space:pre;padding:10px 8px 10px 12px;text-align:right;color:var(--ink-3);user-select:none;
  font-family:"IBM Plex Mono",monospace;font-size:.92rem;line-height:1.55;overflow:hidden;
  border-right:1px solid var(--line-soft);flex:none;min-width:2.6em}
.ed-ta{flex:1;border:0;outline:0;resize:none;padding:10px 12px;background:transparent;color:var(--ink);
  font-family:"IBM Plex Mono",monospace;font-size:.92rem;line-height:1.55;tab-size:4;white-space:pre;
  overflow:auto;min-width:0}
.ed-stdin{flex:none;height:22%;min-height:64px;border:0;outline:0;resize:none;padding:9px 12px;
  background:var(--surface-2);color:var(--ink);font-family:"IBM Plex Mono",monospace;
  font-size:.9rem;line-height:1.5;white-space:pre;overflow:auto}
.ed-out{flex:1;margin:0;padding:10px 12px;overflow:auto;background:var(--surface);
  font-family:"IBM Plex Mono",monospace;font-size:.9rem;line-height:1.55;color:var(--ink);white-space:pre-wrap}
.ed-out .err{color:var(--mark)}
.ed-out .ok{color:var(--prime)}
.ed-out .dim{color:var(--ink-3)}
.ed-status{flex:none;padding:6px 190px 6px 12px;border-top:1px solid var(--line-soft);background:var(--surface-2);
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;color:var(--ink-3);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* кнопка «в редактор» на блоках кода лекции */
.card pre{position:relative}
.pre-run{position:absolute;top:6px;right:6px;z-index:2;opacity:0;transition:opacity .15s;
  user-select:none;-webkit-user-select:none;
  height:26px;padding:0 10px;border-radius:7px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-2);cursor:pointer;font:inherit;font-size:.72rem}
.card pre:hover .pre-run,.pre-run:focus{opacity:1}
.pre-run:hover{border-color:var(--accent);color:var(--accent)}

@media print{.ed-wrap,.pre-run{display:none !important}}

/* сохранения: всплывающий список под шапкой редактора */
.ed-panel{position:relative}
.ed-head button.on{border-color:var(--accent);color:var(--accent)}
.ed-pop{position:absolute;z-index:5;top:52px;left:12px;width:min(420px,calc(100% - 24px));
  max-height:min(60vh,520px);display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  box-shadow:0 18px 50px -18px rgba(0,0,0,.55);overflow:hidden}
.ed-pop[hidden]{display:none}
.ed-pop-form{display:flex;gap:8px;padding:10px;border-bottom:1px solid var(--line-soft);background:var(--surface-2)}
.ed-pop-form input{flex:1;min-width:0;height:32px;padding:0 10px;border-radius:8px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);font:inherit;font-size:.85rem}
.ed-pop-form input:focus{outline:none;border-color:var(--accent)}
.ed-pop-form button{height:32px;padding:0 12px;border-radius:8px;border:1px solid var(--accent);
  background:var(--accent);color:#fff;cursor:pointer;font:inherit;font-size:.82rem}
:root[data-theme="dark"] .ed-pop-form button{color:#0d121a}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .ed-pop-form button{color:#0d121a}}
.ed-pop-list{overflow:auto;padding:4px 0}
.ed-pop-list .it{display:flex;align-items:stretch}
.ed-pop-list .it+.it{border-top:1px solid var(--line-soft)}
.ed-pop-list button{border:0;background:none;color:var(--ink);cursor:pointer;font:inherit;text-align:left}
.ed-pop-list .open{flex:1;min-width:0;padding:8px 12px;font-size:.88rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ed-pop-list .open small{display:block;margin-top:2px;font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--ink-3)}
.ed-pop-list .open:hover{background:var(--surface-2);color:var(--accent)}
.ed-pop-list .del{flex:none;padding:0 14px;color:var(--ink-3);font-size:1rem}
.ed-pop-list .del:hover{color:var(--mark)}
.ed-pop-list .del.arm{color:var(--mark);font-size:.75rem}
.ed-pop-list .empty{padding:14px 12px;font-size:.84rem;color:var(--ink-3);line-height:1.5}

/* ошибки компиляции: строка в редакторе и ссылка в выводе */
.ed-errline{background:color-mix(in srgb,var(--mark) 16%,transparent)}
.ed-warnline{background:color-mix(in srgb,#d9a441 14%,transparent)}
.ed-errglyph{background:var(--mark);width:4px !important;margin-left:3px}
.ed-warnglyph{background:#d9a441;width:4px !important;margin-left:3px}
.ed-out a.diag{cursor:pointer;font-weight:600;text-decoration:underline;text-underline-offset:3px;
  color:var(--mark);border-radius:4px;padding:0 3px;margin-left:-3px}
.ed-out a.diag:hover{background:var(--mark-soft)}
.ed-out a.diag.warning{color:#c48a1a}
.ed-out a.diag.note{color:var(--ink-3)}