/* Quiet controls, with richer tools only when requested. */
.studio-sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;clip-path:inset(50%)}
.studio-board-shortcut,.studio-canvas-nav{display:none}
body.clean-board .studio-board-shortcut,body.clean-board .studio-canvas-nav{display:flex}
.studio-board-shortcut{position:fixed;top:14px;left:16px;z-index:34;align-items:center;gap:9px;max-width:min(330px,calc(100vw - 175px));padding:9px 12px;border:1px solid #e2e8f0;border-radius:11px;background:#fffffff5;color:#475569;font-size:12px;text-align:left;cursor:pointer;box-shadow:0 2px 8px #0f172a04}
.studio-board-shortcut svg{width:19px;height:19px;flex-shrink:0;color:#6366f1}
.studio-board-shortcut span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.studio-canvas-nav{position:fixed;left:50%;bottom:14px;transform:translateX(-50%);z-index:34;align-items:center;gap:2px;padding:5px;border:1px solid #e2e8f0;border-radius:12px;background:#fffffff5;box-shadow:0 3px 14px #0f172a08;max-width:calc(100vw - 20px)}
.studio-canvas-nav button{display:flex;align-items:center;justify-content:center;min-width:32px;height:32px;border:0;background:transparent;color:#475569;border-radius:7px;font-size:18px;cursor:pointer}
.studio-canvas-nav button:hover{background:#f1f5f9}
.studio-canvas-nav button:disabled{opacity:.3;cursor:default}
#studioPageCounter,#studioZoomValue{min-width:56px;padding:0 4px;font-size:11px;font-variant-numeric:tabular-nums;font-weight:600;white-space:nowrap}
.studio-canvas-nav svg{width:17px;height:17px}
.studio-nav-divider{width:1px;height:18px;background:#e2e8f0;margin:0 4px}
.clean-tool-btn[aria-disabled="true"]{opacity:.35}
.studio-menu-features{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:5px 0 20px}
.studio-menu-features button{display:flex;flex-direction:column;gap:4px;text-align:left;padding:12px;border:1px solid #e0e7ff;border-radius:11px;background:#f6f7ff;color:#3730a3;cursor:pointer}
.studio-menu-features strong{font-size:12px;font-weight:650}
.studio-menu-features span{font-size:10px;line-height:1.5;color:#64748b}
.studio-modal{background:#0f172a66;backdrop-filter:blur(5px);align-items:center;justify-content:center;padding:24px;overscroll-behavior:contain}
.studio-modal:not(.hidden){display:flex}
.studio-dialog{width:min(100%,640px);max-height:90dvh;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;padding:28px;border:1px solid #e2e8f0;border-radius:22px;background:#fff;color:#0f172a;box-shadow:0 24px 80px #0f172a33}
.studio-dialog-wide{width:min(100%,830px)}
.studio-dialog-small{width:min(100%,500px)}
.studio-dialog-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:23px}
.studio-dialog-header h2{margin:0 0 7px;font-size:24px;font-weight:700;letter-spacing:-.6px;line-height:1.5}
.studio-eyebrow{font-size:10px;font-weight:700;letter-spacing:1.4px;color:#6366f1;margin:0 0 7px}
.studio-muted{font-size:12px;color:#64748b;line-height:1.7;margin:0}
.studio-modal-close{display:flex;align-items:center;justify-content:center;flex-shrink:0;width:34px;height:34px;border:1px solid #e2e8f0;border-radius:50%;background:#fff;color:#64748b;cursor:pointer;font-size:13px}
.studio-input{display:block;width:100%;min-width:0;height:42px;padding:10px 12px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:#0f172a;font-size:13px;line-height:1.5}
.studio-input::placeholder{color:#94a3b8}
.studio-search{margin:18px 0}
.studio-inline-form,.studio-page-heading{display:flex;align-items:flex-end;gap:10px;margin-bottom:17px}
.studio-inline-form .studio-input,.studio-page-heading .studio-input{flex:1}
.studio-inline-form .studio-field-label{flex:1}
.studio-button{display:inline-flex;align-items:center;justify-content:center;gap:5px;min-height:34px;padding:7px 11px;border:1px solid #e2e8f0;border-radius:8px;background:#fff;color:#475569;font-size:12px;font-weight:550;line-height:1.5;white-space:nowrap;cursor:pointer}
.studio-inline-form>.studio-button,.studio-page-heading>.studio-button{min-height:42px}
.studio-button:hover{background:#f1f5f9;border-color:#cbd5e1}
.studio-button:disabled,.studio-text-button:disabled{opacity:.4;cursor:default}
.studio-primary{background:#4f46e5;border-color:#4f46e5;color:#fff}
.studio-primary:hover{background:#4338ca;border-color:#4338ca}
.studio-primary:disabled{background:#eef2ff;border-color:#e0e7ff;color:#4338ca;opacity:1}
.studio-danger{color:#be123c}
.studio-board-list{display:flex;flex-direction:column;gap:10px}
.studio-board-card{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:13px;padding:17px 15px;border:1px solid #e2e8f0;border-radius:13px}
.studio-board-card.is-current{background:#f8f9ff;border-color:#c7d2fe}
.studio-board-copy{display:flex;flex-direction:column;gap:4px;min-width:140px;flex:1}
.studio-board-copy strong{font-size:14px;font-weight:650;overflow-wrap:anywhere;line-height:1.6}
.studio-board-copy span{font-size:11px}
.studio-board-actions{display:flex;flex-wrap:wrap;gap:6px}
.studio-empty{padding:35px 10px;text-align:center;color:#64748b;font-size:13px;line-height:1.7}
.studio-dialog-footer{display:flex;flex-direction:column;align-items:flex-start;gap:14px;margin-top:20px;padding-top:17px;border-top:1px solid #f1f5f9}
.studio-text-button{border:0;background:transparent;color:#4f46e5;font-size:12px;font-weight:600;padding:3px 0;cursor:pointer}
.studio-page-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.studio-page-card{overflow:hidden;border:1px solid #e2e8f0;border-radius:13px;background:#fff}
.studio-page-card.is-current{border-color:#818cf8;box-shadow:0 0 0 2px #eef2ff}
.studio-page-open{display:block;width:100%;background:#f8fafc;border:0;border-bottom:1px solid #e2e8f0;cursor:pointer;padding:10px}
.studio-page-thumbnail{display:block;width:100%;height:auto;aspect-ratio:16/9;border:1px solid #e2e8f0;border-radius:5px}
.studio-page-fields{padding:12px}
.studio-field-label{display:block;font-size:11px;font-weight:600;color:#64748b;line-height:1.8}
.studio-field-label .studio-input{margin-top:5px;color:#0f172a;font-weight:400}
.studio-page-actions{display:flex;flex-wrap:wrap;gap:5px;margin-top:10px}
.studio-page-actions .studio-button{min-width:32px;padding:5px 9px;font-size:11px}
.studio-footnote{margin-top:20px;padding-top:16px;border-top:1px solid #f1f5f9}
.studio-timer-presets{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:23px}
.studio-timer-presets button{display:flex;flex-direction:column;align-items:flex-start;gap:3px;padding:16px;border:1px solid #e0e7ff;border-radius:13px;background:#f8f9ff;cursor:pointer;color:#4338ca;text-align:left}
.studio-timer-presets button:hover{background:#eef2ff;border-color:#818cf8}
.studio-timer-presets strong{font-size:29px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.3}
.studio-timer-presets span{font-size:11px;line-height:1.7;color:#64748b}
.studio-timer-floating{position:fixed;left:16px;top:66px;z-index:34;display:flex;align-items:center;gap:8px;border:1px solid #e0e7ff;border-radius:11px;padding:7px 10px;background:#f7f8ff;color:#4338ca;box-shadow:0 3px 10px #0f172a06}
.studio-timer-floating.hidden{display:none}
.studio-timer-dot{width:6px;height:6px;border-radius:50%;background:#818cf8}
.studio-timer-clock{font-size:16px;line-height:1.3;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:1px}
.studio-timer-floating button{display:flex;align-items:center;justify-content:center;width:25px;height:25px;border:0;border-radius:5px;background:transparent;color:#6366f1;cursor:pointer;font-size:12px}
.studio-timer-floating button:hover{background:#e0e7ff}
.studio-timer-floating[data-finished="true"]{border-color:#fda4af;background:#fff1f2;color:#be123c}
.studio-arrange-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
.studio-arrange-grid button{padding:12px 8px;border:1px solid #e2e8f0;border-radius:9px;background:#f8fafc;font-size:12px;line-height:1.5;cursor:pointer}
.studio-arrange-grid button:hover{background:#eef2ff;color:#4338ca;border-color:#c7d2fe}
.studio-drop-hint{display:none;position:fixed;inset:18px;z-index:45;pointer-events:none;border:2px dashed #6366f1;border-radius:20px;background:#eef2ffed;align-items:center;justify-content:center;flex-direction:column;gap:8px;color:#4338ca}
.studio-drop-hint strong{font-size:22px}
.studio-drop-hint span{font-size:13px}
.studio-dragging .studio-drop-hint{display:flex}
.studio-busy .studio-modal button,.studio-busy .studio-modal input{pointer-events:none;opacity:.6}
.studio-busy,.studio-busy button{cursor:progress!important}
body.focus-mode .studio-board-shortcut,body.focus-mode .studio-canvas-nav,body.presentation-mode .studio-board-shortcut,body.presentation-mode .studio-canvas-nav{display:none}
html.dark .studio-dialog,html.dark .studio-input,html.dark .studio-button,html.dark .studio-modal-close,html.dark .studio-page-card{background:#111827;border-color:#334155;color:#e2e8f0}
html.dark .studio-board-card,html.dark .studio-footnote,html.dark .studio-dialog-footer{border-color:#334155}
html.dark .studio-board-card.is-current,html.dark .studio-menu-features button,html.dark .studio-arrange-grid button,html.dark .studio-timer-presets button,html.dark .studio-timer-floating{background:#1e1b4b;border-color:#3730a3;color:#c7d2fe}
html.dark .studio-muted,html.dark .studio-field-label,html.dark .studio-menu-features span,html.dark .studio-timer-presets span{color:#94a3b8}
html.dark .studio-board-shortcut,html.dark .studio-canvas-nav{background:#0f172af5;border-color:#334155;color:#cbd5e1}
html.dark .studio-canvas-nav button{color:#cbd5e1}
html.dark .studio-canvas-nav button:hover,html.dark .studio-button:hover{background:#1e293b}
html.dark .studio-primary{background:#4f46e5;color:#fff;border-color:#6366f1}
html.dark .studio-page-open{background:#1e293b;border-color:#334155}
html.dark .studio-page-card.is-current{box-shadow:0 0 0 2px #312e81}
html.dark .studio-danger{color:#fda4af}
@media(max-width:639px){
  .studio-board-shortcut{left:12px;top:12px;font-size:11px;padding:8px 10px;max-width:calc(100vw - 146px)}
  .studio-canvas-nav{bottom:calc(76px + env(safe-area-inset-bottom));padding:4px;gap:0;box-shadow:0 2px 10px #0f172a05}
  .studio-canvas-nav button{min-width:30px;height:30px;font-size:17px}
  #studioPageCounter,#studioZoomValue{min-width:51px;font-size:10px}
  .studio-modal{padding:12px}
  .studio-dialog{padding:20px 17px;border-radius:18px;max-height:92dvh}
  .studio-dialog-header{margin-bottom:18px;gap:10px}
  .studio-dialog-header h2{font-size:22px}
  .studio-eyebrow{font-size:9px;letter-spacing:1px}
  .studio-muted{font-size:11px}
  .studio-inline-form,.studio-page-heading{gap:7px}
  .studio-inline-form>.studio-button,.studio-page-heading>.studio-button{padding:8px 10px;font-size:11px}
  .studio-board-card{padding:13px;gap:11px}
  .studio-board-actions{width:100%}
  .studio-page-list{grid-template-columns:1fr}
  .studio-page-card{display:grid;grid-template-columns:112px 1fr;align-items:center}
  .studio-page-open{padding:6px;border:0;background:transparent}
  .studio-page-fields{padding:10px 10px 10px 0}
  .studio-page-actions{gap:4px}
  .studio-page-actions .studio-button{min-width:28px;padding:4px 7px}
  .studio-timer-floating{left:12px;top:60px;padding:5px 8px;gap:7px}
  .studio-timer-clock{font-size:14px}
  #selectionContextBar{max-width:calc(100vw - 16px);gap:2px}
  #selectionContextBar .sub-btn{font-size:10px;padding:5px 7px}
}
@media(max-width:350px){.studio-inline-form,.studio-page-heading{flex-wrap:wrap}.studio-inline-form>.studio-input,.studio-page-heading>.studio-input{flex-basis:100%}.studio-page-card{grid-template-columns:90px 1fr}}
@media print{.studio-modal,.studio-board-shortcut,.studio-canvas-nav,.studio-timer-floating,.studio-drop-hint{display:none!important}}