/* =====================================================================
   ИИ-ТРЕНАЖЁР · стили v3.2
   Экран авторизации — фиксированный оверлей + раздел «Примеры»
   ===================================================================== */

:root{
  --bg:#070b14; --card:#0f1626; --card2:#151d33; --border:rgba(148,170,220,.14);
  --text:#e9edf6; --muted:#8b96ad; --chipbg:rgba(255,255,255,.05);
  --acc1:#8b5cf6; --acc2:#22d3ee; --grad:linear-gradient(135deg,var(--acc1),var(--acc2));
  --ok:#2dd4a7; --warn:#ffb648; --bad:#ff5d7d; --info:#7cc4ff;
}
body.light{
  --bg:#eef1f8; --card:#ffffff; --card2:#f4f6fb; --border:rgba(25,40,80,.12);
  --text:#1a2340; --muted:#5b667d; --chipbg:rgba(20,30,60,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  color:var(--text);min-height:100vh;line-height:1.55;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(139,92,246,.16), transparent 60%),
    radial-gradient(700px 420px at -10% 110%, rgba(34,211,238,.10), transparent 60%),
    var(--bg);
}
/* блокируем прокрутку страницы, пока показан экран авторизации */
body.auth-active{overflow:hidden}

.wrap{max-width:1080px;margin:0 auto;padding:22px 18px 60px}
header{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.logo{display:flex;align-items:center;gap:12px}
.logo .ico{width:44px;height:44px;border-radius:13px;background:var(--grad);display:grid;place-items:center;font-size:22px;flex:none}
.logo h1{font-size:19px}
.logo p{font-size:12.5px;color:var(--muted)}
.hright{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pill{background:var(--card);border:1px solid var(--border);border-radius:999px;padding:8px 14px;font-size:13px;color:var(--muted)}
.pill b{color:var(--text)}
.pill.click{cursor:pointer;transition:.15s}
.pill.click:hover{border-color:var(--acc2)}
.pill.on{border-color:var(--ok);color:var(--ok)}

.btn{border:none;cursor:pointer;border-radius:11px;padding:11px 18px;font-size:14px;font-weight:600;transition:.18s;font-family:inherit}
.btn-p{background:var(--grad);color:#fff}
.btn-p:hover{filter:brightness(1.12);transform:translateY(-1px)}
.btn-g{background:var(--card2);color:var(--text);border:1px solid var(--border)}
.btn-g:hover{border-color:var(--acc2)}
.btn:disabled{opacity:.5;cursor:wait}

.tabs{display:flex;gap:7px;background:var(--card);border:1px solid var(--border);padding:6px;border-radius:14px;margin-bottom:18px;flex-wrap:wrap}
.tabs button{flex:1;min-width:110px;border:none;background:transparent;color:var(--muted);padding:10px 14px;border-radius:10px;cursor:pointer;font-size:14px;font-weight:600;font-family:inherit;transition:.15s}
.tabs button.active{background:var(--grad);color:#fff}

.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;margin-bottom:16px}
.card h3{font-size:15px;margin-bottom:12px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}

textarea{width:100%;min-height:170px;background:var(--card2);border:1px solid var(--border);border-radius:12px;color:var(--text);padding:14px;font-size:14.5px;font-family:inherit;resize:vertical;line-height:1.6}
textarea:focus{outline:none;border-color:var(--acc1)}
textarea[readonly]{min-height:150px;color:var(--muted)}
label.f{display:block;font-size:13px;color:var(--muted);margin:0 0 6px 2px}
input[type=text],input[type=password],input[type=number],input[type=email],select{width:100%;background:var(--card2);border:1px solid var(--border);border-radius:10px;color:var(--text);padding:10px 12px;font-size:14px;font-family:inherit}
input:focus,select:focus{outline:none;border-color:var(--acc1)}
.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.muted{color:var(--muted);font-size:13.5px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:860px){.grid2{grid-template-columns:1fr}}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.chip{border-radius:999px;padding:6px 13px;font-size:12.5px;border:1px solid var(--border);color:var(--muted);background:var(--chipbg);transition:.2s}
.chip.on{background:rgba(45,212,167,.14);border-color:var(--ok);color:var(--ok)}

.score-flex{display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.ring{--p:0;--rc:#2dd4a7;width:132px;height:132px;border-radius:50%;flex:none;
  background:conic-gradient(var(--rc) calc(var(--p)*1%), rgba(127,137,160,.16) 0);
  display:grid;place-items:center;position:relative}
.ring::before{content:"";position:absolute;inset:11px;border-radius:50%;background:var(--card)}
.ring div{position:relative;text-align:center}
.ring b{font-size:34px;display:block}
.ring span{font-size:12px;color:var(--muted)}
.level{font-size:19px;font-weight:700}

.cbar{display:grid;grid-template-columns:155px 1fr 60px;gap:10px;align-items:center;margin:8px 0;font-size:13.5px}
.cbar .track{height:8px;border-radius:99px;background:var(--chipbg);overflow:hidden}
.cbar .track i{display:block;height:100%;border-radius:99px;background:var(--grad)}
.cbar b{font-size:12px;color:var(--muted);text-align:right}
.cbar.miss b{color:var(--bad)}
.cbar .cm{grid-column:2/4;font-size:12px;color:var(--muted);margin-top:-4px}

ul.tips{list-style:none}
ul.tips li{padding:9px 12px;background:var(--card2);border:1px solid var(--border);border-left:3px solid var(--acc1);border-radius:10px;margin-bottom:8px;font-size:13.5px}

.sim{white-space:pre-wrap;background:var(--card2);border:1px solid var(--border);border-left:3px solid var(--acc2);border-radius:12px;padding:16px;font-size:13.5px;line-height:1.65;max-height:420px;overflow:auto}
.sim.streaming::after{content:'▍';color:var(--acc2);animation:blink 1s infinite}
@keyframes blink{50%{opacity:0}}

.reqs{list-style:none;margin:10px 0}
.reqs li{padding:8px 12px;border-radius:10px;margin-bottom:6px;font-size:13.5px;background:var(--card2);border:1px solid var(--border)}
.reqs li.ok{border-left:3px solid var(--ok)}
.reqs li.fail{border-left:3px solid var(--bad)}
.reqs li .sub{display:block;font-size:12px;color:var(--muted);margin-top:2px}

.progress{height:9px;border-radius:99px;background:var(--chipbg);overflow:hidden;margin:8px 0 4px}
.progress i{display:block;height:100%;background:var(--grad);border-radius:99px;transition:.4s}

.dots{display:flex;gap:8px;margin:10px 0 16px}
.dots button{width:30px;height:30px;border-radius:50%;border:1px solid var(--border);background:var(--card2);color:var(--muted);cursor:pointer;font-size:12px;font-family:inherit}
.dots button.cur{background:var(--grad);color:#fff;border-color:transparent}
.dots button.done{border-color:var(--ok);color:var(--ok)}

.hitem{display:flex;gap:12px;align-items:center;background:var(--card2);border:1px solid var(--border);border-radius:12px;padding:10px 14px;margin-bottom:8px;cursor:pointer;transition:.15s}
.hitem:hover{border-color:var(--acc2)}
.hscore{min-width:52px;text-align:center;font-weight:700;border-radius:9px;padding:5px 0;font-size:13px}

.banner{padding:13px 16px;border-radius:12px;font-weight:600;margin:12px 0;font-size:14px}
.banner.good{background:rgba(45,212,167,.13);border:1px solid var(--ok);color:var(--ok)}
.banner.mid{background:rgba(255,182,72,.12);border:1px solid var(--warn);color:var(--warn)}
.banner.bad{background:rgba(255,93,125,.12);border:1px solid var(--bad);color:var(--bad)}

details.hintbox{margin:10px 0}
details.hintbox summary{cursor:pointer;color:var(--acc2);font-size:13.5px;user-select:none}
details.hintbox .body{margin-top:8px;padding:12px 14px;background:var(--card2);border:1px solid var(--border);border-radius:10px;font-size:13.5px;white-space:pre-wrap}

.tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;color:var(--acc2);border:1px solid var(--acc2);border-radius:6px;padding:2px 8px;margin-bottom:8px}
.badge{font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;border:1px solid var(--border);color:var(--muted)}
.badge.llm{border-color:var(--acc2);color:var(--acc2)}
.badge.heur{border-color:var(--warn);color:var(--warn)}
.badge.you{border-color:var(--ok);color:var(--ok)}

.formula{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:10px 0}
.formula span{background:var(--card2);border:1px solid var(--border);border-radius:9px;padding:7px 12px;font-size:13px;font-weight:600}
.formula em{color:var(--muted);font-style:normal}

table.tbl{width:100%;border-collapse:collapse;font-size:13.5px;margin-top:8px}
table.tbl th,table.tbl td{border:1px solid var(--border);padding:8px 11px;text-align:left;vertical-align:top}
table.tbl th{background:var(--card2)}

.spinner{width:18px;height:18px;border:2.5px solid var(--chipbg);border-top-color:var(--acc2);border-radius:50%;display:inline-block;animation:spin .8s linear infinite;vertical-align:-4px}
@keyframes spin{to{transform:rotate(360deg)}}

/* ================= АВТОРИЗАЦИЯ (фиксированный оверлей) ================= */
#authScreen{
  position:fixed;
  inset:0;
  z-index:100;
  display:grid;
  place-items:center;
  padding:20px;
  overflow:auto;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(139,92,246,.16), transparent 60%),
    radial-gradient(700px 420px at -10% 110%, rgba(34,211,238,.10), transparent 60%),
    var(--bg);
}
#authScreen[hidden]{display:none !important}
.auth-wrap{width:100%;max-width:440px}
.auth-card{max-width:440px}
.auth-tabs{display:flex;gap:6px;background:var(--card2);padding:5px;border-radius:11px;margin-bottom:16px}
.auth-tabs button{flex:1;border:none;background:transparent;color:var(--muted);padding:9px;border-radius:8px;cursor:pointer;font-weight:600;font-family:inherit;font-size:14px}
.auth-tabs button.active{background:var(--grad);color:#fff}
.auth-err{margin-top:12px;padding:10px 12px;border-radius:10px;background:rgba(255,93,125,.12);border:1px solid var(--bad);color:var(--bad);font-size:13px}
.auth-msg{margin-top:12px;padding:12px 14px;border-radius:10px;background:rgba(45,212,167,.12);border:1px solid var(--ok);color:var(--ok);font-size:13.5px}
.auth-msg a{color:var(--acc2);font-weight:600;word-break:break-all}

/* ================= ПРОФИЛЬ ================= */
.profile-head{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.avatar{width:60px;height:60px;border-radius:50%;background:var(--grad);display:grid;place-items:center;font-size:26px;font-weight:700;color:#fff;flex:none}
.profile-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:16px}
.stat-card{text-align:center;margin-bottom:0}
.stat-num{font-size:32px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:4px}
@media(max-width:860px){.profile-grid{grid-template-columns:repeat(2,1fr)}}
.bars-chart{display:flex;align-items:flex-end;gap:10px;height:150px;padding:10px 0 0;border-bottom:1px solid var(--border)}
.bars-chart .bar-i{flex:1;border-radius:6px 6px 0 0;opacity:.88;transition:.15s;min-width:24px}
.bars-chart .bar-i:hover{opacity:1}
.bars-chart .bar-i.zero{background:var(--bad);opacity:.3}

/* ================= АДМИНКА ================= */
.urow{display:grid;grid-template-columns:1.1fr 1.3fr .6fr .8fr .9fr .9fr 1.7fr;gap:8px;align-items:center;padding:10px 8px;border-bottom:1px solid var(--border);font-size:13px}
.urow.head{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.5px}
.urow .actions{display:flex;flex-wrap:wrap;gap:4px}
@media(max-width:980px){.urow{grid-template-columns:1fr 1fr}}
.mini{border:1px solid var(--border);background:var(--card2);color:var(--text);border-radius:7px;padding:5px 9px;font-size:11.5px;cursor:pointer;font-family:inherit}
.mini:hover{border-color:var(--acc2)}
.mini.danger{color:var(--bad)}
.mini.danger:hover{border-color:var(--bad)}

/* ================= РАЗДЕЛ «ПРИМЕРЫ» ================= */
.ex-card{border-left:3px solid var(--acc1)}
.ex-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.ex-prompt{white-space:pre-wrap;background:var(--card2);border:1px solid var(--border);border-radius:10px;padding:14px;font-size:13.5px;line-height:1.6;margin-bottom:10px}

/* ================= МОДАЛКА, ТОСТ ================= */
#modal{position:fixed;inset:0;z-index:40;display:grid;place-items:center;padding:18px}
#modal[hidden]{display:none}
.modal-back{position:absolute;inset:0;background:rgba(4,7,14,.6);backdrop-filter:blur(3px)}
.modal{position:relative;width:100%;max-width:540px;margin:0;max-height:92vh;overflow:auto}
#toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--grad);color:#fff;padding:11px 22px;border-radius:999px;font-size:14px;font-weight:600;opacity:0;pointer-events:none;transition:.25s;z-index:50}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.small-link{background:none;border:none;color:var(--muted);font-size:12px;cursor:pointer;text-decoration:underline;font-family:inherit}