:root{
  --bg:#f6eef6;--surface:#fbf6fb;--ink:#2d1a2b;--ink-2:#5e4a5c;--ink-3:#7a667a;--line:#e4d3e3;--line-strong:#c9aec7;
  --accent:#9b3f8f;--accent-ink:#fbf6fb;--ok:#2f7a55;--err:#b04a3a;--warn:#8a6a1f;
  --ui:"Yu Gothic UI","Meiryo UI","Hiragino Sans","Noto Sans JP","Noto Sans CJK JP",system-ui,sans-serif;
  --mono:"Cascadia Mono","Consolas","Yu Gothic UI","Meiryo UI",monospace;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#231324;--surface:#2d1a2e;--ink:#efddee;--ink-2:#cdb4cb;--ink-3:#9c839a;--line:#442b45;--line-strong:#5e4260;
  --accent:#e08fd6;--accent-ink:#231324;--ok:#7fcfa5;--err:#e59a8a;--warn:#d9b45a;
  color-scheme:dark;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#231324;--surface:#2d1a2e;--ink:#efddee;--ink-2:#cdb4cb;--ink-3:#9c839a;--line:#442b45;--line-strong:#5e4260;
  --accent:#e08fd6;--accent-ink:#231324;--ok:#7fcfa5;--err:#e59a8a;--warn:#d9b45a;
  color-scheme:dark;
}}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.55 var(--ui);display:flex;flex-direction:column;min-height:100dvh}
button,select,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}

.hdr{display:flex;align-items:center;gap:14px;padding:10px 16px;border-bottom:1px solid var(--line);background:var(--surface)}
.brand{display:flex;align-items:center;gap:10px;margin:0;font-weight:600}
.logo{width:28px;height:28px;color:var(--ink);flex-shrink:0}
.brand-name{font-size:19px;letter-spacing:.06em}
.brand-sub{font-size:12px;font-weight:400;color:var(--ink-3)}
.privacy{margin:0 0 0 auto;font-size:12px;color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:1px 10px}
.icon-btn{border:1px solid var(--line);background:transparent;border-radius:8px;width:34px;height:30px}
.icon-btn:hover{border-color:var(--line-strong)}

button{background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:4px 12px;line-height:1.4}
button:hover:not(:disabled){border-color:var(--line-strong)}
button:disabled{opacity:.45;cursor:default}
button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
select,input[type=text]{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:4px 10px;color:var(--ink);min-width:0}
select:hover,input[type=text]:hover,textarea:hover{border-color:var(--line-strong)}
input[type=checkbox]{accent-color:var(--accent)}
.grow{flex:1}

.split{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:14px 16px;min-height:0}
.pane{display:flex;flex-direction:column;gap:8px;min-width:0}
.pane-head{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px}
.btns{display:inline-flex;gap:6px;flex-wrap:nowrap;margin-left:auto}
.pane-head h2{margin:0 6px 0 0;font-size:15px}
.inl{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2)}
.chk{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--ink-2)}
textarea{width:100%;flex:1;min-height:320px;resize:vertical;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:10px 12px;font:13px/1.55 var(--mono);color:var(--ink);tab-size:4;white-space:pre;overflow:auto}
#in::placeholder{color:var(--ink-3);font-family:var(--ui);white-space:pre-line}
#out{background:var(--bg)}
.seg{display:inline-flex;flex-wrap:wrap;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface)}
.seg button{border:0;border-radius:0;background:transparent;padding:4px 11px;border-right:1px solid var(--line)}
.seg button:last-child{border-right:0}
.seg button[aria-selected="true"]{background:var(--accent);color:var(--accent-ink);font-weight:600}
.qrow{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2)}
.qrow input{flex:1;font-family:var(--mono);font-size:13px}
.qerr,.err{margin:0;font-size:13px;color:var(--err);white-space:pre-wrap}
.err{border:1px solid var(--err);border-radius:8px;padding:6px 10px}
.opts{display:flex;flex-wrap:wrap;gap:6px 16px;align-items:center}
.opts [data-off="true"]{opacity:.4}
.stat{margin:0;font-size:12.5px;color:var(--ink-3);min-height:1.5em}
.warn{margin:0;padding:0 0 0 18px;font-size:12.5px;color:var(--warn)}
.help{font-size:13px;color:var(--ink-2)}
.help summary{cursor:pointer}
.help table{border-collapse:collapse;margin:8px 0}
.help td{padding:3px 12px 3px 0;vertical-align:top}
.help td:first-child{white-space:nowrap}
code{font-family:var(--mono);font-size:12.5px;background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:0 5px}

.toast{position:fixed;left:50%;bottom:64px;transform:translateX(-50%);margin:0;padding:8px 16px;border-radius:999px;background:var(--ink);color:var(--bg);font-size:13px;z-index:20;max-width:90vw}
.dropping textarea#in{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent) inset}

.tz-foot{display:flex;justify-content:center;padding:8px 16px calc(8px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line)}
.tz-link{display:inline-flex;align-items:center;gap:10px;padding:4px 16px 4px 8px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink-2);text-decoration:none;font-size:12px;line-height:1.4;transition:border-color .15s,color .15s}
.tz-link:hover{border-color:var(--line-strong);color:var(--ink)}
.tz-mark{width:22px;height:22px;color:#8E5532;flex-shrink:0}
.tz-name{font-size:13px;font-weight:500;letter-spacing:.12em;color:var(--ink)}
.tz-sub{color:var(--ink-3)}
:root[data-theme="dark"] .tz-mark{color:#C9A063}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .tz-mark{color:#C9A063}}

/* Watashi から受け取るときの確認 */
dialog{border:1px solid var(--line-strong);border-radius:14px;background:var(--bg);color:var(--ink);padding:0;width:min(560px,94vw)}
dialog::backdrop{background:#0008}
.dlg{display:flex;flex-direction:column;gap:12px;padding:16px 18px}
.dlg h2{margin:0;font-size:16px}
.dlg .hint{margin:0;color:var(--ink-3);font-size:12.5px}
.dbtn{display:flex;gap:8px;justify-content:flex-end}
.recv-prev{margin:0;max-height:24vh;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font:12.5px/1.55 var(--mono);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 12px}

@media (max-width:860px){
  .split{grid-template-columns:1fr}
  .brand-sub{display:none}
  textarea{min-height:220px}
}
.sr-copy{position:fixed;left:-9999px;top:0;opacity:0}