/* Лучик: тёплая тема, днём светлая, ночью тёмная (вслед за iPhone) */
:root{
  --bg:#fbf6ec; --fg:#2a2117; --fg2:#8b7d69; --ln:#eadfcc; --chip:#f3e9d6; --card:#fff;
  --acc:#e8890c; --accfg:#fff; --sh:0 2px 10px rgba(120,80,20,.08); --soft:#fff4e0; --soft2:#f6efe3;
  --blue:#e7f1ff; --bluefg:#2a62c9; --ok:#2fb46b; --warn:#e8a317; --red:#d24b36; --code:#f3ecdf;
  --safe-t:env(safe-area-inset-top,0px); --safe-b:env(safe-area-inset-bottom,0px);
  color-scheme:light dark;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#17130e; --fg:#f3ebdf; --fg2:#a8998a; --ln:#33291f; --chip:#2a221a; --card:#211b15;
    --acc:#f29a1f; --accfg:#1d1205; --sh:none; --soft:#2b2112; --soft2:#1d1813;
    --blue:#17243a; --bluefg:#8fb6ff; --code:#2a231b;
  }
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--fg)}
body{font:16px/1.45 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Arial,sans-serif;-webkit-text-size-adjust:100%;overscroll-behavior:none}
button{font:inherit;color:inherit;border:0;background:none;padding:0;cursor:pointer}
textarea,input{font:inherit;color:var(--fg)}
svg{stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
a{color:var(--acc)}
#app{height:100dvh;display:flex;flex-direction:column;padding-top:var(--safe-t)}
.screen{flex:1;display:flex;flex-direction:column;min-height:0}
.scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;min-height:0}
.muted{color:var(--fg2)}.sm{font-size:14px}.xs{font-size:12.5px}.b{font-weight:650}
.hidden{display:none!important}

/* шапка главной */
.hello{padding:14px 18px 8px;display:flex;gap:12px;align-items:center}
.sun{width:50px;height:50px;border-radius:50%;flex:none;background:radial-gradient(circle at 40% 35%,#ffd36a,#f39a12);box-shadow:0 0 0 6px rgba(243,154,18,.15)}
.sun.sleep{background:radial-gradient(circle at 40% 35%,#d7cfc2,#9d9284);box-shadow:none}
.hello h1{font-size:21px;margin:0;font-weight:700}
.hello .grow{flex:1;min-width:0}
.iconbtn{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--fg2);flex:none}
.iconbtn svg{width:22px;height:22px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);display:inline-block;margin-right:5px;vertical-align:1px}
.dot.warn{background:var(--warn)}.dot.off{background:#9a958d}.dot.red{background:var(--red)}
.lbl{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--fg2);font-weight:650;margin:16px 18px 8px}

/* карточки */
.card{background:var(--card);border-radius:20px;padding:14px 15px;margin:0 14px 10px;box-shadow:var(--sh)}
.card .top,.ask .top{display:flex;justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:4px}
.card .ttl{font-weight:650}
.card .what{font-size:14px;word-break:break-word}
.card .preview{font-size:14.5px;color:var(--fg);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;white-space:pre-line}
.card.tap{cursor:pointer}
.card.thin{padding:11px 15px}
.tag{font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--blue);color:var(--bluefg);white-space:nowrap}
.tag.red{background:#fde4df;color:#a5321f}
@media (prefers-color-scheme: dark){.tag.red{background:#3a1c16;color:#ff9d88}}
.btns{display:flex;gap:8px;margin-top:11px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:12px;padding:11px 14px;font-weight:600;font-size:15px;flex:1;min-width:90px}
.btn.pri{background:var(--acc);color:var(--accfg)}
.btn.sec{background:var(--chip);color:var(--fg)}
.btn.ghost{border:1px solid var(--ln)}
.btn.small{flex:none;padding:8px 12px;font-size:14px;min-width:0}
.btn:disabled{opacity:.5}
details.more{margin-top:8px}
details.more summary{font-size:13.5px;color:var(--fg2);cursor:pointer;list-style:none}
details.more summary::-webkit-details-marker{display:none}
pre.detail{white-space:pre-wrap;word-break:break-word;font:13px/1.45 ui-monospace,Menlo,Consolas,monospace;background:var(--code);border-radius:10px;padding:10px;margin:8px 0 0;max-height:50vh;overflow:auto}
.empty{margin:4px 18px 10px;color:var(--fg2);font-size:14.5px}

.chips{display:flex;gap:8px;padding:0 14px 8px;flex-wrap:wrap}
.chip{background:var(--card);border-radius:14px;padding:10px 14px;font-size:15px;box-shadow:var(--sh);display:inline-flex;align-items:center;gap:6px}
.chip .n{font-size:12px;color:var(--acc);font-weight:700}

.talk{flex:none;padding:10px 16px calc(14px + var(--safe-b));display:flex;justify-content:center}
.talk button{display:flex;align-items:center;gap:10px;background:var(--acc);color:var(--accfg);border-radius:999px;padding:14px 28px;font-weight:650;box-shadow:0 6px 18px rgba(232,137,12,.3)}
.talk svg{width:20px;height:20px}

/* шапка экранов */
.hdr{flex:none;display:flex;align-items:center;gap:6px;padding:6px 10px 8px;border-bottom:1px solid var(--ln)}
.hdr .back{color:var(--acc)}
.hdr .mid{flex:1;min-width:0}
.hdr .mid .t{font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hdr .mid .s{font-size:12.5px;color:var(--fg2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hdr .mid button{text-align:left;width:100%}
.pill{display:inline-flex;align-items:center;gap:4px;font-size:12px;padding:5px 10px;border-radius:999px;background:var(--chip);white-space:nowrap}
.pill.stop{background:#fde4df;color:#a5321f;font-weight:650}
@media (prefers-color-scheme: dark){.pill.stop{background:#3a1c16;color:#ff9d88}}

/* чат */
.chat{padding:10px 12px 14px}
.bub{max-width:88%;padding:10px 13px;border-radius:18px;margin:7px 0;word-wrap:break-word;overflow-wrap:anywhere}
.bub.me{margin-left:auto;background:var(--acc);color:var(--accfg);border-bottom-right-radius:6px;white-space:pre-wrap}
.bub.ai{background:var(--card);border-bottom-left-radius:6px;box-shadow:var(--sh);max-width:96%}
.bub .st{display:block;font-size:11.5px;opacity:.8;margin-top:4px;text-align:right}
.tools{font-size:13px;color:var(--fg2);margin:4px 4px}
.tools summary{cursor:pointer;list-style:none}
.tools summary::-webkit-details-marker{display:none}
.tools .tl{display:flex;gap:6px;margin:3px 0 0 2px;word-break:break-word}
.tools .tl b{font-weight:600;flex:none}
.working{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--fg2);margin:8px 4px}
.working i{width:8px;height:8px;border-radius:50%;background:var(--acc);animation:pulse 1.2s infinite}
@keyframes pulse{0%,100%{opacity:.25}50%{opacity:1}}
.ask{border:1.5px solid var(--acc);border-radius:16px;padding:12px;margin:10px 0;background:var(--soft)}
.sys{text-align:center;font-size:12.5px;color:var(--fg2);margin:10px 0}
.input{flex:none;display:flex;align-items:flex-end;gap:8px;padding:8px 10px calc(8px + var(--safe-b));border-top:1px solid var(--ln);background:var(--bg)}
.input textarea{flex:1;resize:none;border:0;outline:0;background:var(--chip);border-radius:20px;padding:10px 15px;max-height:40vh;min-height:42px;line-height:1.35;font-size:16px}
.send{width:42px;height:42px;border-radius:50%;background:var(--acc);color:var(--accfg);display:flex;align-items:center;justify-content:center;flex:none}
.send svg{width:20px;height:20px}
.send:disabled{opacity:.4}

/* markdown */
.md>*:first-child{margin-top:0}.md>*:last-child{margin-bottom:0}
.md p{margin:0 0 .65em}
.md h1,.md h2,.md h3,.md h4{margin:.9em 0 .35em;line-height:1.25}
.md h1{font-size:1.2em}.md h2{font-size:1.12em}.md h3,.md h4{font-size:1.02em}
.md ul,.md ol{margin:0 0 .65em;padding-left:1.3em}
.md li{margin:.15em 0}
.md code{font:.88em ui-monospace,Menlo,Consolas,monospace;background:var(--code);padding:.1em .35em;border-radius:5px}
.md pre{background:var(--code);border-radius:10px;padding:10px;overflow:auto;white-space:pre-wrap;word-break:break-word}
.md pre code{background:none;padding:0}
.md blockquote{margin:0 0 .65em;padding:.1em .8em;border-left:3px solid var(--acc);color:var(--fg2)}
.md table{border-collapse:collapse;margin:0 0 .7em;font-size:.92em;display:block;overflow-x:auto;max-width:100%}
.md th,.md td{border:1px solid var(--ln);padding:5px 8px;text-align:left;vertical-align:top}
.md th{background:var(--soft2)}
.md hr{border:0;border-top:1px solid var(--ln);margin:1em 0}

/* полный текст карточки */
.doc{padding:14px 18px 30px}
.doc .meta{font-size:13px;color:var(--fg2);margin-bottom:10px}
.foot{flex:none;padding:10px 14px calc(10px + var(--safe-b));border-top:1px solid var(--ln);display:flex;flex-direction:column;gap:8px;background:var(--bg)}
.foot .btns{margin:0}

/* листы снизу */
.sheet-bg{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:20;display:flex;align-items:flex-end}
.sheet{background:var(--bg);width:100%;max-height:85dvh;border-radius:22px 22px 0 0;padding:8px 0 calc(14px + var(--safe-b));display:flex;flex-direction:column}
.sheet .grab{width:40px;height:5px;border-radius:5px;background:var(--ln);margin:2px auto 8px}
.sheet h3{margin:4px 18px 10px;font-size:18px}
.sheet .scroll{padding:0 0 6px}
.row{display:flex;align-items:center;gap:10px;padding:12px 18px;border-bottom:1px solid var(--ln);width:100%;text-align:left}
.row .grow{flex:1;min-width:0}
.row .t{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row.on{background:var(--soft)}
.field{display:block;width:calc(100% - 36px);margin:0 18px 12px;border:1px solid var(--ln);background:var(--card);border-radius:14px;padding:12px 14px;outline:0;resize:none}
.seg{display:flex;gap:8px;padding:0 18px 12px;flex-wrap:wrap}
.seg button{padding:9px 14px;border-radius:12px;background:var(--chip)}
.seg button.on{background:var(--acc);color:var(--accfg);font-weight:650}

/* вход */
.pair{flex:1;display:flex;flex-direction:column;justify-content:center;padding:24px 24px calc(24px + var(--safe-b));text-align:center}
.pair .sun{width:76px;height:76px;margin:0 auto 18px}
.pair h1{font-size:23px;margin:0 0 8px}
.pair input{width:100%;text-align:center;font:600 20px ui-monospace,Menlo,Consolas,monospace;letter-spacing:1px;padding:14px;border-radius:14px;border:1.5px solid var(--ln);background:var(--card);outline:0;text-transform:uppercase;margin:18px 0 12px}
.pair input:focus{border-color:var(--acc)}
.pair .btn{flex:none}

/* широкий экран: две колонки */
.split{flex:1;display:flex;min-height:0}
.split>aside{width:400px;flex:none;display:flex;flex-direction:column;border-right:1px solid var(--ln);min-height:0}
.split>main{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0}
.split>main .back{display:none}
.split>main .chat,.split>main .doc{max-width:860px;margin:0 auto;width:100%}
.split>main .input,.split>main .foot{padding-left:max(10px,calc((100% - 860px)/2));padding-right:max(10px,calc((100% - 860px)/2))}
.split .card.sel,.split .chip.sel{outline:2px solid var(--acc);outline-offset:-2px}
.placeholder{align-items:center;justify-content:center;gap:16px;text-align:center}
.placeholder .sun{width:64px;height:64px}
@media (min-width:900px){
  .sheet-bg{align-items:center;justify-content:center}
  .sheet{width:560px;border-radius:22px;max-height:80vh;padding-bottom:16px}
  .sheet .grab{display:none}
  .bub.me{max-width:75%}
  #toast{bottom:30px}
}
.codebox{font:600 22px ui-monospace,Menlo,Consolas,monospace;letter-spacing:1px;text-align:center;padding:14px;margin:0 18px 10px;border-radius:14px;background:var(--soft);user-select:all;-webkit-user-select:all}

#toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(90px + var(--safe-b));background:#2a2117;color:#fff;padding:10px 16px;border-radius:12px;font-size:14px;z-index:40;max-width:90vw;text-align:center}
@media (prefers-color-scheme: dark){#toast{background:#f3ebdf;color:#17130e}}

/* служебные классы (вместо style="" в разметке: CSP без unsafe-inline) */
.wide{width:100%;flex:none}
.btn.full{flex-basis:100%}
.mt6{margin-top:6px}.mt8{margin-top:8px}.mt10{margin-top:10px}.mt12{margin-top:12px}.mt16{margin-top:16px}.mt20{margin-top:20px}
.mb4{margin-bottom:4px}.mb6{margin-bottom:6px}
.px18{padding-left:18px;padding-right:18px}.pb10{padding-bottom:10px}.pb12{padding-bottom:12px}
.gap20{height:20px}
.empty.flat{margin:0}
.working.flat{margin:2px 0 0}
.card.flat{margin:0 0 10px}
.preview.clamp2{-webkit-line-clamp:2}
pre.detail.tall{max-height:none}
.ico14{width:14px;height:14px;vertical-align:-2px}
.danger{color:var(--red)}
.card.alarm{border:2px solid var(--red);background:var(--soft)}
.lbl0{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--fg2);font-weight:650;margin:0 0 8px}
.msg{background:var(--soft2);border:1px solid var(--ln);border-radius:16px;padding:11px 13px;margin:0 0 8px}
.msgtext{white-space:pre-wrap;word-wrap:break-word;overflow-wrap:anywhere}
.file{display:inline-flex;align-items:center;gap:4px;background:var(--chip);border-radius:10px;padding:4px 9px;font-size:13px;margin:4px 4px 0 0}
.src{display:flex;align-items:center;gap:6px;font-size:12.5px;color:var(--fg2);margin-bottom:8px}
.sunmini{width:16px;height:16px;border-radius:50%;background:radial-gradient(circle at 40% 35%,#ffd36a,#f39a12);flex:none}
.tag.ch-max{background:#6f4ef2;color:#fff}
.tag.ch-tg{background:#2a9fd8;color:#fff}
/* вкладки проекта и домашка */
.ptabs{flex:none;display:flex;gap:6px;padding:8px 12px 4px}
.ptabs button{padding:7px 14px;border-radius:10px;background:var(--chip);font-size:14px}
.ptabs button.on{background:var(--acc);color:var(--accfg);font-weight:650}
.preview.clamp3{-webkit-line-clamp:3}
.tag.warn{background:#fff0d6;color:#b06a00}
@media (prefers-color-scheme: dark){.tag.warn{background:#3a2a10;color:#ffc46b}}
.donelist summary{cursor:pointer;list-style:none}
.donelist summary::-webkit-details-marker{display:none}
.sheetbtns{display:flex;flex-direction:column;gap:8px}
.chip .n{margin-left:4px}
/* длинные слова и ссылки без пробелов не должны вылезать за край */
.card,.preview,.md,.doc,.bub,.what,.msgtext{overflow-wrap:anywhere;word-break:break-word}