:root{ color-scheme: light dark; }
*{ box-sizing:border-box; }
html,body{ height:100%; margin:0; font-family: system-ui,-apple-system,Segoe UI,Roboto,'Noto Sans JP','Hiragino Kaku Gothic ProN',Meiryo,sans-serif; background:var(--bg); color:var(--text); }
.ss-root{ height:100%; display:flex; flex-direction:column; }

.ss-topbar{ border-bottom:1px solid var(--border); background:var(--panel2); position:relative; z-index:10; }
.ss-topbar__row{ display:grid; align-items:center; gap:12px; padding:8px 12px; }
.ss-topbar__row--main{ grid-template-columns: 220px 1fr 120px; }
.ss-topbar__row--tools{ padding-top:0; }
.ss-topbar__left,.ss-topbar__right{ display:flex; align-items:center; }
.ss-topbar__right{ justify-content:flex-end; gap:8px; }
.ss-topbar__center{ min-width:0; display:flex; flex-direction:column; gap:8px; }
.ss-brandMark{ width:34px; height:34px; border-radius:10px; border:1px solid var(--border); display:flex; align-items:center; justify-content:center; background:var(--btn); margin-right:10px; }
.ss-brandTitle{ font-weight:700; font-size:16px; }
.ss-brandSub{ color:var(--muted); font-size:11px; }
.ss-docTitleWrap{ display:flex; align-items:center; }
.ss-docTitle{ width:min(720px,100%); border:0; background:transparent; color:var(--text); font-size:20px; font-weight:600; padding:4px 2px; border-bottom:1px solid transparent; outline:none; }
.ss-docTitle:focus{ border-bottom-color:var(--accent); }
.ss-menu{ display:flex; flex-wrap:wrap; gap:2px; }
.ss-menu__btn{ border:0; background:transparent; color:var(--text); padding:5px 8px; border-radius:8px; cursor:pointer; }
.ss-menu__btn:hover,.ss-menu__btn.is-open{ background:var(--btnHover); }

.ss-toolbar{ display:flex; align-items:center; justify-content:space-between; gap:8px; min-width:0; flex-wrap:nowrap; overflow:visible; }
.ss-toolbar.is-advanced-visible{ flex-wrap:wrap; }
.ss-toolbar .ss-advanced{ display:none; }
.ss-toolbar.is-advanced-visible .ss-advanced{ display:inline-flex; }
.ss-toolbar__group{ display:flex; align-items:center; gap:6px; flex-wrap:nowrap; min-width:0; }
.ss-toolbar__group--left{ flex:0 1 auto; }
.ss-toolbar__group--middle{ justify-content:center; flex:1 1 auto; overflow:visible; }
.ss-toolbar__group--right{ justify-content:flex-end; flex:0 0 auto; }
.ss-btn{ height:32px; min-width:32px; padding:0 10px; border:1px solid var(--border); background:var(--btn); color:var(--text); border-radius:10px; cursor:pointer; display:inline-flex; align-items:center; justify-content:center; }
.ss-btn:hover{ background:var(--btnHover); }
.ss-btn:active{ transform:translateY(1px); }
.ss-btn--toggle.is-active{ outline:2px solid var(--accent); outline-offset:1px; }
.ss-btn--file{ padding:0; width:32px; }
.ss-btn--file input{ display:none; }
.ss-btn--ghost{ background:transparent; }
.ss-sep{ width:1px; height:24px; background:var(--border); margin:0 2px; }

.ss-menuPopup{ position:absolute; top:72px; left:240px; min-width:250px; border:1px solid var(--border); background:var(--panel2); border-radius:14px; box-shadow:var(--shadow); padding:8px; z-index:200; }
.ss-menuPopup[hidden]{ display:none !important; }
.ss-menuPopup__section + .ss-menuPopup__section{ margin-top:8px; padding-top:8px; border-top:1px solid var(--border); }
.ss-menuPopup__title{ color:var(--muted); font-size:11px; text-transform:uppercase; margin:0 0 6px; }
.ss-menuPopup__item{ width:100%; display:flex; align-items:center; justify-content:space-between; gap:12px; border:0; background:transparent; color:var(--text); border-radius:10px; padding:8px 10px; cursor:pointer; text-align:left; }
.ss-menuPopup__item:hover{ background:var(--btnHover); }
.ss-menuPopup__item.is-disabled, .ss-menuPopup__item:disabled{ color:var(--muted); opacity:.46; cursor:default; }
.ss-menuPopup__item.is-disabled:hover, .ss-menuPopup__item:disabled:hover{ background:transparent; }
.ss-menuPopup__hint{ color:var(--muted); font-size:12px; }

.ss-main{ flex:1; display:grid; grid-template-columns:260px 1fr 300px; min-height:0; }
.ss-main.ss-hide-left{ grid-template-columns:0 1fr 300px; }
.ss-main.ss-hide-right{ grid-template-columns:260px 1fr 0; }
.ss-main.ss-hide-left.ss-hide-right{ grid-template-columns:0 1fr 0; }
.ss-left,.ss-right{ background:var(--panel); min-height:0; overflow:hidden; display:flex; flex-direction:column; }
.ss-left{ border-right:1px solid var(--border); }
.ss-right{ border-left:1px solid var(--border); }
.ss-main.ss-hide-left .ss-left,.ss-main.ss-hide-right .ss-right{ display:none; }
.ss-panelHeader{ height:44px; display:flex; align-items:center; justify-content:space-between; padding:0 10px; border-bottom:1px solid var(--border); background:var(--panel2); font-weight:600; }
.ss-left__actions{ display:flex; gap:6px; }
.ss-slides{ padding:10px; overflow:auto; display:flex; flex-direction:column; gap:10px; }
.ss-slideThumb{ display:grid; grid-template-columns:36px 1fr; gap:10px; align-items:start; border:1px solid var(--border); background:var(--panel2); border-radius:14px; padding:10px; cursor:pointer; }
.ss-slideThumb:hover{ background:var(--btnHover); }
.ss-slideThumb.is-active{ outline:2px solid var(--accent); }
.ss-slideNum{ width:36px; height:36px; border-radius:10px; border:1px solid var(--border); display:flex; align-items:center; justify-content:center; color:var(--muted); background:var(--btn); font-size:12px; }
.ss-slideCanvas{ width:100%; aspect-ratio:16/9; border-radius:10px; border:1px solid var(--border); background:#fff; display:flex; align-items:center; justify-content:center; overflow:hidden; }
.ss-slideCanvas img{ width:100%; height:100%; object-fit:cover; }
.ss-slideMeta{ margin-top:6px; color:var(--muted); font-size:12px; }

.ss-center{ display:flex; align-items:flex-start; justify-content:flex-start; padding:12px 14px 14px; overflow:auto; background:var(--bg); }
.ss-rulerWrap{ display:flex; flex-direction:column; gap:0; align-items:flex-start; }
.ss-ruler{ background:#f8fafc; border:1px solid var(--border); border-radius:0; display:block; flex:none; }
.ss-rulerRow{ display:flex; gap:0; align-items:flex-start; }
.ss-ruler--left{ width:28px; height:auto; border-top:0; }
.ss-ruler--top{ height:28px; width:auto; margin-left:28px; border-bottom:0; }
.ss-canvasWrap{ background:var(--panel2); border:1px solid var(--border); border-radius:12px; padding:8px; box-shadow:var(--shadow); }
.ss-stage .canvas-container,.ss-canvasWrap .canvas-container{ background:#fff; border-radius:10px; }
.ss-stage .canvas-container canvas,.ss-canvasWrap .canvas-container canvas{ background:transparent; }
.ss-stage .canvas-container .upper-canvas,.ss-canvasWrap .canvas-container .upper-canvas{ background:transparent !important; }

.ss-prop{ padding:12px 12px 2px; }
.ss-prop__title{ font-size:12px; color:var(--muted); margin:6px 0 10px; text-transform:uppercase; letter-spacing:.06em; }
.ss-field{ display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:10px; }
.ss-field span{ color:var(--text); font-size:13px; }
.ss-field input,.ss-field select{ width:150px; border:1px solid var(--border); border-radius:10px; padding:6px 8px; background:var(--panel2); color:var(--text); }
.ss-field--grow input{ width:100%; }
.ss-row{ display:flex; gap:8px; align-items:flex-end; }
.ss-field--grow{ flex:1; }
.ss-muted{ color:var(--muted); font-size:12px; line-height:1.5; }

.ss-layers{ display:flex; flex-direction:column; gap:6px; }
.ss-layer{ display:flex; align-items:center; gap:6px; padding:6px 8px; border:1px solid var(--border); border-radius:10px; background:var(--panel2); }
.ss-layer:hover{ border-color:var(--accent); }
.ss-layer.is-active{ outline:2px solid rgba(59,130,246,.35); }
.ss-layer.is-drop{ outline:2px dashed rgba(59,130,246,.8); }
.ss-layer__name{ flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:12px; }
.ss-layer__btn{ width:26px; height:26px; border:1px solid var(--border); border-radius:8px; background:var(--panel); cursor:pointer; display:flex; align-items:center; justify-content:center; }
.ss-layer__btn:hover{ border-color:var(--accent); }
.ss-layer__btn.is-off{ opacity:.45; }

.ss-footerBar{ height:34px; border-top:1px solid var(--border); background:var(--panel2); display:flex; align-items:center; gap:18px; padding:0 12px; color:var(--muted); font-size:12px; flex-wrap:wrap; }
.ss-footerBar > div{ white-space:nowrap; }

.ss-present{ position:fixed; inset:0; background:rgba(0,0,0,0.85); display:flex; align-items:center; justify-content:center; z-index:9999; }
.ss-present[hidden]{ display:none !important; }
.ss-present__top{ position:absolute; top:14px; left:14px; right:14px; display:flex; align-items:center; justify-content:space-between; }
.ss-present__nav{ display:flex; gap:10px; }
.ss-present__stage{ position:relative; width:92vw; height:92vh; display:flex; align-items:center; justify-content:center; }
.ss-present__debug{ position:absolute; top:18px; left:18px; z-index:99999; pointer-events:none; color:#fff; font-size:12px; opacity:.95; background:rgba(0,0,0,.45); padding:6px 8px; border-radius:8px; }

.ss-overlay{ position:fixed; inset:0; background:rgba(0,0,0,.45); display:flex; align-items:center; justify-content:center; z-index:12000; }
.ss-overlay[hidden]{ display:none !important; }
.ss-overlay__panel{ width:min(920px,92vw); max-height:80vh; overflow:auto; background:var(--panel2); border:1px solid var(--border); border-radius:14px; box-shadow:var(--shadow); padding:12px; }
.ss-overlay__head{ display:flex; align-items:center; justify-content:space-between; padding:6px 6px 10px 6px; border-bottom:1px solid var(--border); margin-bottom:10px; }
.ss-overlay__title{ font-weight:700; }
.ss-layoutGrid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:10px; }
.ss-layoutCard{ border:1px solid var(--border); border-radius:12px; padding:10px; background:var(--btn); cursor:pointer; }
.ss-layoutCard:hover{ background:var(--btnHover); border-color:var(--accent); }
.ss-layoutThumb{ height:110px; border-radius:10px; border:1px solid var(--border); background:linear-gradient(135deg, rgba(148,163,184,.25), rgba(148,163,184,.08)); display:flex; align-items:center; justify-content:center; color:var(--muted); margin-bottom:8px; position:relative; }
.ss-layoutThumb span{ position:absolute; left:10px; top:8px; font-size:11px; color:var(--muted); }
.ss-form label{ display:block; font-size:13px; color:var(--muted); margin:10px 0 6px; }
.ss-form input{ width:100%; padding:8px 10px; border-radius:10px; border:1px solid var(--border); background:var(--bg); color:var(--text); }
.ss-form__row{ display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.ss-form__actions{ display:flex; justify-content:flex-end; gap:8px; margin-top:10px; }
.ss-storageList{ display:flex; flex-direction:column; gap:8px; margin-top:12px; }
.ss-storageItem{ display:grid; grid-template-columns:1fr auto; gap:10px; align-items:center; border:1px solid var(--border); border-radius:12px; padding:10px; background:var(--btn); }
.ss-storageMeta{ color:var(--muted); font-size:12px; margin-top:2px; }
.ss-storageActions{ display:flex; gap:6px; }

@media (max-width: 1200px){
  .ss-topbar__row--main{ grid-template-columns: 190px 1fr 100px; }
  .ss-main{ grid-template-columns:220px 1fr 280px; }
}
@media (max-width: 900px){
  .ss-topbar__row--main{ grid-template-columns:1fr; }
  .ss-topbar__left,.ss-topbar__right{ justify-content:flex-start; }
  .ss-main{ grid-template-columns:1fr; }
  .ss-left,.ss-right{ display:none; }
}


.ss-storageItem{display:grid;grid-template-columns:120px 1fr auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--border);}
.ss-storagePreview{width:120px;aspect-ratio:16/9;border:1px solid var(--border);border-radius:10px;background:#fff;overflow:hidden;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px;}
.ss-storagePreview img{width:100%;height:100%;object-fit:cover;display:block;}
.ss-storageMeta{color:var(--muted);font-size:12px;line-height:1.5;}
.ss-storageActions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}

/* alpha16: iconized storage-neutral menus. */
.ss-menuPopup__icon{width:22px;min-width:22px;display:inline-flex;justify-content:center;align-items:center;color:var(--muted);}
.ss-menuPopup__label{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}


/* alpha25: Google Slides-like slide panel, selection and inspector polish. */
.ss-panelHeader--stack{ height:auto !important; min-height:44px; display:flex; flex-direction:column; align-items:stretch; gap:8px; padding:8px 10px; }
.ss-panelHeader__row{ display:flex; align-items:center; justify-content:space-between; gap:8px; }
.ss-slideTools{ display:flex; gap:6px; align-items:center; }
.ss-slideSearch{ flex:1; min-width:0; height:30px; border:1px solid var(--border); border-radius:10px; padding:0 9px; background:var(--panel2); color:var(--text); }
.ss-slideBulkActions{ display:flex; align-items:center; gap:6px; flex-wrap:wrap; }
.ss-btn--mini{ height:28px; min-width:28px; padding:0 8px; border-radius:8px; font-size:12px; }
.ss-btn--primary{ background:var(--accent); border-color:var(--accent); color:#fff; }
.ss-slideThumb.is-selected{ outline:2px solid rgba(37,99,235,.38); border-color:var(--accent); }
.ss-slideThumb.is-filtered{ display:none; }
.ss-slideTitle{ margin-top:6px; font-size:12px; color:var(--text); outline:none; border-radius:6px; padding:2px 4px; }
.ss-slideTitle:focus{ background:var(--bg); box-shadow:0 0 0 2px rgba(37,99,235,.25); }
.ss-slideSection{ display:flex; align-items:center; gap:6px; margin:2px 0 -4px; color:var(--muted); font-size:11px; text-transform:uppercase; letter-spacing:.08em; }
.ss-slideSection:before,.ss-slideSection:after{ content:""; height:1px; background:var(--border); flex:1; }
.ss-slideEmpty{ padding:12px; color:var(--muted); font-size:12px; text-align:center; border:1px dashed var(--border); border-radius:12px; }
.ss-textAlignGroup{ display:flex; gap:6px; margin-top:8px; }
.ss-textToggle.is-active,.ss-textAlignGroup .is-active{ outline:2px solid var(--accent); outline-offset:1px; }
.ss-confirm__panel{ width:min(420px,92vw); }
.ss-confirm__message{ padding:12px 6px 8px; color:var(--text); line-height:1.6; }
.ss-layer__type{ color:var(--muted); font-size:11px; margin-left:4px; }
.ss-layer[data-hidden="true"] .ss-layer__name{ opacity:.55; text-decoration:line-through; }

/* alpha36-fix7: production menu structure.
   Section headings are no longer rendered by the menu builder; related commands
   are grouped into UnifiedSlide-owned submenus instead. */
.ss-menuPopup{ min-width:270px; }
.ss-menuPopup__divider{ height:1px; background:var(--border); margin:6px 4px; }
.ss-menuPopup__submenu{ position:relative; }
.ss-menuPopup__item--submenu .ss-menuPopup__arrow{ font-size:18px; line-height:1; }
.ss-menuPopup__submenuPanel{
  display:none;
  position:absolute;
  top:-8px;
  left:calc(100% + 6px);
  min-width:250px;
  padding:8px;
  border:1px solid var(--border);
  border-radius:14px;
  background:var(--panel2);
  box-shadow:var(--shadow);
  z-index:230;
}
.ss-menuPopup__submenu:hover > .ss-menuPopup__submenuPanel,
.ss-menuPopup__submenu:focus-within > .ss-menuPopup__submenuPanel,
.ss-menuPopup__submenu.is-open > .ss-menuPopup__submenuPanel{ display:block; }
.ss-menuPopup__submenuPanel .ss-menuPopup__item{ min-height:34px; }
.ss-menuPopup--openLeft .ss-menuPopup__submenuPanel{ left:auto; right:calc(100% + 6px); }