:root{
  --bg:#F6F3FA;--panel:#FDFCFF;--ink:#241F33;--ink-2:#4D4566;--ink-3:#867E9F;--line:#E4DFF0;--line-strong:#C9C0DE;
  --accent:#5B4B9A;--accent-ink:#FFFFFF;--stage:#E3DEEE;
  --ui:"Yu Gothic UI","Meiryo UI","Hiragino Sans","Noto Sans JP","Noto Sans CJK JP",system-ui,sans-serif;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#1A1724;--panel:#231F30;--ink:#EAE6F5;--ink-2:#C4BCD9;--ink-3:#8F86A8;--line:#352F47;--line-strong:#4B4363;
  --accent:#A99BE0;--accent-ink:#1E1830;--stage:#13101B;color-scheme:dark;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#1A1724;--panel:#231F30;--ink:#EAE6F5;--ink-2:#C4BCD9;--ink-3:#8F86A8;--line:#352F47;--line-strong:#4B4363;
  --accent:#A99BE0;--accent-ink:#1E1830;--stage:#13101B;color-scheme:dark;
}}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 var(--ui);display:flex;flex-direction:column;min-height:100dvh}
button,select,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
[hidden]{display:none!important}

.hdr{display:flex;align-items:center;gap:8px;padding:8px 14px;border-bottom:1px solid var(--line);background:var(--panel);flex-wrap:wrap}
.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)}
.grow{flex:1}
.privacy{margin:0;font-size:12px;color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:1px 10px;white-space:nowrap}
.save-state{font-size:12px;color:var(--ink-3)}
.save-state.warn{color:#B6402F}
.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(--panel);border:1px solid var(--line);border-radius:8px;padding:4px 11px;line-height:1.4}
button:hover:not(:disabled){border-color:var(--line-strong)}
button:disabled{opacity:.4;cursor:default}
button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
button.primary:hover:not(:disabled){filter:brightness(1.08)}
button.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
button:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
select,input[type=text],input[type=number],textarea{background:var(--panel);border:1px solid var(--line);border-radius:7px;padding:3px 7px;color:var(--ink)}
input[type=checkbox]{accent-color:var(--accent)}
input[type=color]{width:30px;height:26px;padding:1px;border:1px solid var(--line-strong);border-radius:6px;background:var(--panel);cursor:pointer}
input[type=number]{width:70px}
.hex{width:5.8em;font-family:ui-monospace,Consolas,monospace}

.app{flex:1;min-height:0;display:grid;grid-template-columns:184px minmax(0,1fr) 270px;height:calc(100dvh - 118px)}
.slides{border-right:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;min-height:0}
.sl-tools{display:flex;flex-wrap:wrap;gap:5px;padding:8px;border-bottom:1px solid var(--line)}
.sl-tools select{flex:1 1 100%}
.sl-tools button{flex:1;padding:3px 4px;font-size:12px}
.sl-list{list-style:none;margin:0;padding:8px;overflow:auto;flex:1}
.sl-item{display:flex;gap:6px;align-items:flex-start;margin-bottom:8px;padding:4px;border:2px solid transparent;border-radius:8px;cursor:pointer}
.sl-item.cur{border-color:var(--accent);background:var(--bg)}
.sl-item.over{border-top-color:var(--accent)}
.sl-no{font-size:11px;color:var(--ink-3);width:16px;text-align:right;padding-top:2px}
.sl-thumb{flex:1;min-width:0;border:1px solid var(--line-strong);border-radius:3px;background:#fff;aspect-ratio:16/9;display:block;overflow:hidden}
.sl-thumb svg{display:block;width:100%;height:100%;pointer-events:none}

.center{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--stage)}
.toolbar{display:flex;flex-wrap:wrap;gap:5px;padding:7px 10px;background:var(--panel);border-bottom:1px solid var(--line);align-items:center}
.toolbar .sep{width:1px;height:20px;background:var(--line-strong);margin:0 3px}
.toolbar button{padding:3px 9px;font-size:13px}
.stage-wrap{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;padding:14px;overflow:hidden}
.stage{position:relative;aspect-ratio:16/9;max-width:100%;max-height:100%;width:100%;box-shadow:0 2px 16px #0003;background:#fff;touch-action:none;user-select:none}
.stage svg{position:absolute;inset:0;width:100%;height:100%;display:block;font-family:var(--ui)}
.stage.dragover{outline:3px dashed var(--accent)}
#inline-edit{position:absolute;margin:0;padding:0;border:1px dashed var(--accent);background:transparent;resize:none;outline:none;overflow:hidden;line-height:1.2;white-space:pre-wrap;z-index:3}
.msg{margin:0;padding:3px 12px;font-size:12px;color:var(--ink-2);min-height:22px;background:var(--panel);border-top:1px solid var(--line)}
.msg.err{color:#B6402F;background:transparent;border:0;padding:0}
.notes{display:flex;gap:8px;align-items:flex-start;padding:6px 12px;background:var(--panel);border-top:1px solid var(--line)}
.notes label{font-size:12px;color:var(--ink-2);padding-top:5px;white-space:nowrap}
.notes textarea{flex:1;resize:vertical;min-height:38px;max-height:120px}

.props{border-left:1px solid var(--line);background:var(--panel);overflow:auto;padding:10px 12px;min-height:0}
.props h3{margin:14px 0 6px;font-size:13px;color:var(--ink-2)}
.props h3:first-child{margin-top:0}
.prow{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:5px 0}
.prow>label{font-size:12px;color:var(--ink-2);display:inline-flex;align-items:center;gap:4px}
.prow button{padding:2px 8px;font-size:12px}
.prow input[type=number]{width:62px}
.sw{display:flex;flex-wrap:wrap;gap:4px;margin:4px 0}
.sw button{width:20px;height:20px;padding:0;border-radius:5px;border:1px solid var(--line-strong)}
.sw button.none{background:linear-gradient(135deg,transparent 45%,#c0392b 45%,#c0392b 55%,transparent 55%),var(--panel)}
.hint{margin:0 0 8px;font-size:12px;color:var(--ink-3)}
.empty{font-size:12px;color:var(--ink-3)}

.tz-foot{display:flex;justify-content:center;padding:8px 16px calc(8px + env(safe-area-inset-bottom));background:var(--panel);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(--panel);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}}

dialog{border:1px solid var(--line-strong);border-radius:16px;background:var(--bg);color:var(--ink);padding:0;width:min(720px,96vw);max-height:94vh}
dialog::backdrop{background:#0008}
.dlg-in{display:flex;flex-direction:column;max-height:94vh}
.dlg-head{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-bottom:1px solid var(--line);background:var(--panel)}
.dlg-head h2{margin:0;font-size:17px}
.dlg-body{padding:14px 16px;overflow:auto;display:flex;flex-direction:column;gap:10px}
.dlg-body textarea{width:100%;font:13px/1.5 ui-monospace,Consolas,"BIZ UDGothic",monospace;white-space:pre;resize:vertical}
.dlg-body .row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.field{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2)}
.check{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2)}

@media (max-width:900px){
  .app{grid-template-columns:120px minmax(0,1fr);height:auto}
  .props{grid-column:1 / -1;border-left:0;border-top:1px solid var(--line)}
  .center{min-height:60dvh}
}