[hidden]{display:none !important}
:root{
  --bg:#ffffff; --panel:#f7f7f8; --text:#15171c; --muted:#8b9099;
  --line:#e7e7ea; --accent:#6b7c8e; --accent-soft:#eef1f4;
  --ok:#5c8a6b; --ok-bg:#eef4ef; --err:#b06a5c; --err-bg:#f8efec;
  --radius:10px;
}
*{box-sizing:border-box}
body.auth{margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:inherit}

.auth-split{display:grid;grid-template-columns:minmax(420px,44%) 1fr;min-height:100vh}
.auth-pane{display:flex;flex-direction:column;padding:32px 48px}
.auth-top{display:flex;justify-content:space-between;align-items:center}
.brand{font-size:18px;font-weight:600;letter-spacing:-.3px;text-decoration:none}
.brand sup{font-size:10px;color:var(--muted);margin-left:3px;font-weight:500}
.help-dot{width:30px;height:30px;border-radius:50%;border:1px solid var(--line);
  color:var(--muted);display:grid;place-items:center;text-decoration:none;font-size:14px;
  transition:.2s}
.help-dot:hover{background:var(--panel);color:var(--text)}

.auth-card{width:100%;max-width:360px;margin:auto;padding:40px 0}
.auth-card h1{font-size:26px;font-weight:600;letter-spacing:-.5px;margin:0 0 6px}
.auth-sub{color:var(--muted);font-size:14px;margin:0 0 26px}

.auth-form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field>span{font-size:12px;color:var(--muted);letter-spacing:.2px}
input[type=text],input[type=password],input[type=email]{
  padding:11px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;
  background:#fff;outline:none;transition:border-color .2s,box-shadow .2s;width:100%}
input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 16px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;
  border:1px solid transparent;transition:.2s;text-decoration:none}
.btn:disabled{opacity:.55;cursor:default}
.btn-primary{background:#1d2127;color:#fff;width:100%}
.btn-primary:hover:not(:disabled){background:#2b3139}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text);width:100%}
.btn-ghost:hover{background:var(--panel)}
.btn-soft{background:var(--panel);color:var(--text)}
.btn-soft:hover{background:#eeeef0}

.auth-alt{font-size:13px;color:var(--muted);text-align:center;margin:18px 0 0}
.auth-alt a{color:var(--text);text-decoration:none;border-bottom:1px solid var(--line)}
.auth-hint{font-size:11px;color:var(--muted);margin:6px 0 0}

/* other ways */
.other{margin-top:auto;padding-top:28px}
.other-toggle{background:none;border:none;color:var(--muted);font-size:12px;
  cursor:pointer;padding:6px 0;letter-spacing:.2px}
.other-toggle:hover{color:var(--text)}
.other-panel{margin-top:10px;border-top:1px solid var(--line);animation:fade .3s ease}
.other-item{display:flex;justify-content:space-between;align-items:center;width:100%;
  padding:11px 2px;background:none;border:none;border-bottom:1px solid var(--line);
  cursor:pointer;font-size:13px;color:var(--text);text-align:left;text-decoration:none}
.other-item:hover{background:var(--panel)}
.other-item em{font-style:normal;color:var(--muted);font-size:11px}
.other-extra{padding:14px 0;font-size:13px;animation:fade .3s ease}
.inline-form{display:flex;gap:8px;margin-top:10px}
.inline-form input{flex:1}
.row{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.hint{color:var(--muted);font-size:12px;margin:0 0 8px}

/* art */
.auth-art{background:#f2f2f0 center/cover no-repeat}

/* feedback */
.feedback{position:fixed;inset:0;display:flex;flex-direction:column;gap:16px;
  align-items:center;justify-content:center;background:rgba(255,255,255,.72);
  backdrop-filter:blur(6px);opacity:0;transition:opacity .25s;z-index:50}
.feedback.show{opacity:1}
.feedback .bubble{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;
  transform:scale(.85);animation:pop .35s forwards}
.feedback.ok .bubble{background:var(--ok-bg)}
.feedback.err .bubble{background:var(--err-bg)}
.feedback svg{width:46px;height:46px;fill:none;stroke-width:3.5;stroke-linecap:round;
  stroke-linejoin:round}
.feedback.ok svg{stroke:var(--ok)}
.feedback.err svg{stroke:var(--err)}
.feedback svg path{stroke-dasharray:60;stroke-dashoffset:60;animation:draw .5s .12s forwards}
.feedback-msg{font-size:14px;color:var(--text)}
.feedback .ico-err{display:none}
.feedback.err .ico-err{display:block}
.feedback.err .ico-ok{display:none}

@keyframes draw{to{stroke-dashoffset:0}}
@keyframes pop{to{transform:scale(1)}}
@keyframes fade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

@media (max-width:900px){
  .auth-split{grid-template-columns:1fr}
  .auth-art{display:none}
  .auth-pane{padding:24px}
}

/* ── captcha ── */
.captcha{border:1px solid var(--line);border-radius:var(--radius);padding:16px;
  background:#fff;max-width:360px}
.captcha-head{display:flex;justify-content:space-between;align-items:center;
  font-size:12px;margin-bottom:12px}
.captcha-head strong{font-weight:600;font-size:12px}
.captcha-step{color:var(--muted)}
.emoji-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:12px 0}
.emoji-grid button{font-size:26px;padding:12px 0;border:1px solid var(--line);
  border-radius:8px;background:#fff;cursor:pointer;transition:.15s}
.emoji-grid button:hover{background:var(--panel)}
.emoji-grid button.sel{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.color-board{display:flex;gap:24px;align-items:center;margin:14px 0}
.color-blocks,.color-targets{display:flex;flex-direction:column;gap:12px}
.c-block{width:58px;height:58px;border-radius:8px;cursor:grab;
  box-shadow:0 2px 8px rgba(0,0,0,.08)}
.c-block.sel{outline:2px solid var(--accent);outline-offset:2px}
.c-slot{width:70px;height:70px;border-radius:10px;display:grid;place-items:center;
  border:2px dashed rgba(0,0,0,.15)}
.c-slot.over{border-color:var(--accent)}
.c-slot .c-block{width:52px;height:52px;cursor:pointer}

/* ── misc pages ── */
.doc{max-width:620px;margin:0 auto;padding:48px 24px}
.doc h1{font-size:24px;letter-spacing:-.4px}
.doc h2{font-size:15px;margin:28px 0 8px}
.doc p,.doc li{font-size:14px;line-height:1.65;color:#3a3f47}
.doc .rule{border-top:1px solid var(--line);margin:28px 0}
.doc code{background:var(--panel);padding:2px 6px;border-radius:5px;font-size:13px}
.panel{border:1px solid var(--line);border-radius:var(--radius);padding:18px;
  margin:14px 0;background:#fff}
.panel h3{margin:0 0 4px;font-size:14px;font-weight:600}
.panel p{margin:0 0 12px;font-size:13px;color:var(--muted)}
.codes{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:12px 0}
.codes span{font-family:ui-monospace,Menlo,monospace;font-size:13px;background:var(--panel);
  padding:8px 10px;border-radius:6px;text-align:center}
.qr-out svg{width:220px;height:220px}
.mono{font-family:ui-monospace,Menlo,monospace;font-size:12px;word-break:break-all}
.strength{width:100%;margin-top:4px;accent-color:var(--accent)}