/* Pizarra 1.8.4: controles compactos y lienzo de tamaño independiente del viewport. */
.aula-board{--board-ink:var(--ink,#193345);--board-line:var(--line,#dce5e9);display:flex;flex-direction:column;min-width:0;min-height:0;font-size:14px;position:relative}
.aula-board [hidden]{display:none!important}
.aula-board .board-top{position:relative;flex:none;z-index:5}
.aula-board .board-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:4px;padding:5px 0;position:static!important;overflow:visible}
.aula-board .board-icon{display:inline-flex;justify-content:center;align-items:center;width:40px;min-width:40px;height:42px;min-height:42px;padding:8px;position:relative;touch-action:manipulation}
.aula-board svg{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.aula-board button svg,.aula-board summary svg{width:21px;height:21px;flex:none}
.aula-board .board-icon[aria-pressed=true],.aula-board button[aria-expanded=true]{background:var(--soft,#e9f5f1);border-color:var(--accent,#14766e);box-shadow:inset 0 -3px var(--accent,#14766e)}
.aula-board .board-icon:not([data-popover=color])::after{content:none!important;display:none!important}
.aula-board button:focus-visible,.aula-board select:focus-visible,.aula-board input:focus-visible,.aula-board textarea:focus-visible{outline:3px solid var(--accent,#14766e);outline-offset:2px}
.aula-board .board-split{display:inline-flex;gap:0}
.aula-board .board-split>[data-board=eraser]{border-top-right-radius:0;border-bottom-right-radius:0}
.aula-board .board-split>[data-popover]{width:24px;min-width:24px;padding:3px;border-top-left-radius:0;border-bottom-left-radius:0;border-left:0}
.aula-board [data-popover=color]::after{content:'';position:absolute;top:auto;left:8px;right:8px;bottom:4px;height:3px;padding:0;border-radius:3px;background:var(--current-ink,#193345)}
.aula-board .toolbar-separator{height:24px;width:1px;background:var(--board-line);margin:0 2px}
.aula-board .board-toolbar label{display:flex;align-items:center;gap:5px;font-size:12px;margin:0}
.aula-board .board-width{padding:4px 6px}
.aula-board .board-width input{width:85px;accent-color:var(--accent,#14766e)}
.aula-board .board-popover{position:absolute;top:51px;z-index:30;width:300px;max-width:100%;max-height:min(440px,65dvh);overflow:auto;padding:14px;background:var(--paper,#fff);color:var(--ink,#193345);border:1px solid var(--board-line);border-radius:10px;box-shadow:0 10px 32px #12334530;display:flex;flex-direction:column;gap:10px;line-height:1.5}
.aula-board .board-popover p{margin:0;font-size:12px}
.aula-board .board-popover strong{font-size:15px}
.aula-board .board-popover label{display:flex;flex-direction:column;gap:4px;font-size:12px;margin:0}
.aula-board .board-popover button{display:flex;gap:8px;align-items:center;min-height:44px;padding:8px 10px;font-size:13px;text-align:left}
.aula-board .board-popover select{width:100%;min-width:0;font-size:13px;padding:8px;min-height:40px}
.aula-board .board-popover [aria-pressed=true]{border-color:var(--accent,#14766e);background:var(--soft,#e9f5f1);font-weight:700}
.aula-board .board-colors{display:flex;flex-wrap:wrap;gap:8px}
.aula-board .board-colors button{width:38px;min-width:38px;height:38px;min-height:38px;padding:0;border:4px solid var(--paper,#fff);border-radius:50%;background:var(--swatch);box-shadow:0 0 0 1px var(--board-line)}
.aula-board .board-colors button[aria-pressed=true]{background:var(--swatch);box-shadow:0 0 0 2px var(--accent,#14766e);border-color:#fff}
.aula-board input[type=color]{width:48px;height:38px;padding:3px;border:1px solid var(--board-line);border-radius:7px;background:var(--paper,#fff)}
.aula-board .board-context{display:flex;align-items:center;flex-wrap:wrap;gap:6px 10px;padding:4px 0 8px;min-width:0}
.aula-board .board-context label{display:flex;align-items:center;gap:5px;margin:0;font-size:12px;min-width:0}
.aula-board .board-object-choice{flex:1 1 170px;max-width:300px}
.aula-board .board-object-choice select{font-size:12px;padding:7px;min-height:38px;min-width:0;width:100%}
.aula-board .board-object-fields{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.aula-board .board-object-fields input{width:75px;min-height:36px;padding:6px;font-size:12px}
.aula-board .board-view-controls{margin-left:auto;display:flex;align-items:center;gap:4px}
.aula-board .board-view-controls output{min-width:45px;text-align:center;font-size:12px;font-variant-numeric:tabular-nums}
.aula-board .board-view-controls>[data-board=zoom-100]{font-size:12px;min-height:40px;padding:6px}
.aula-board .board-text-fields{display:flex;align-items:end;gap:8px;flex-wrap:wrap;padding:8px;margin:0 0 8px;background:var(--soft,#e9f5f1);border:1px solid var(--board-line);border-radius:8px}
.aula-board .board-text-fields label{display:flex;flex-direction:column;gap:3px;font-size:12px;margin:0}
.aula-board .board-text-content{flex:1 1 220px;min-width:0}
.aula-board .board-text-content textarea{width:100%;min-height:58px;max-height:120px;resize:vertical;font-size:16px;line-height:1.35;padding:6px 8px}
.aula-board .board-text-fields input{width:78px;min-height:36px;padding:6px;font-size:13px}
.aula-board .board-text-fields button{min-height:38px;font-size:12px;padding:8px;display:flex;align-items:center;gap:6px}
.aula-board .board-stage{flex:1 1 var(--board-stage-height,65dvh);height:var(--board-stage-height,65dvh);min-height:300px;max-height:none;max-width:none!important;position:relative;isolation:isolate;width:100%;line-height:0;background:#e9eef1;border:1px solid var(--board-line);border-radius:10px;overflow:hidden;margin:0!important}
.aula-board .whiteboard{display:block;width:100%;height:100%!important;max-width:100%;aspect-ratio:auto!important;border:0;border-radius:0;background:transparent;touch-action:none;user-select:none;-webkit-user-select:none;cursor:crosshair;margin:0}
.aula-board .whiteboard:focus-visible{outline:3px solid var(--accent,#14766e);outline-offset:-4px}
.aula-board .whiteboard.board-brush{cursor:none}
.aula-board .whiteboard.board-pan{cursor:grab}
.aula-board .whiteboard.board-panning{cursor:grabbing}
.aula-board .board-overlay{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:hidden;stroke:none}
.aula-board .board-overlay *{vector-effect:non-scaling-stroke}
.aula-board .board-cursor-halo{fill:none;stroke:#fff;stroke-width:3}
.aula-board .board-cursor-edge{fill:none;stroke:#193345;stroke-width:1.1;stroke-dasharray:3 2}
.aula-board .board-selection-box{fill:none;stroke:#14766e;stroke-width:1.5;stroke-dasharray:5 3}
.aula-board .board-member-box{fill:none;stroke:#14766e;stroke-width:1;stroke-dasharray:2 3;opacity:.55}
.aula-board .board-resize-handle{fill:#fff;stroke:#14766e;stroke-width:2}
.aula-board .board-marquee{fill:#14766e18;stroke:#14766e;stroke-width:1.5;stroke-dasharray:4 3}
.aula-board .whiteboard.board-resizing{cursor:nwse-resize}
.aula-board .board-selection-list{display:flex;flex-direction:column;gap:2px;max-height:240px;overflow:auto}
.aula-board .board-selection-list label{display:flex;flex-direction:row;align-items:center;gap:8px;min-height:42px;padding:5px;overflow-wrap:anywhere}
.aula-board .board-selection-list input{width:20px;height:20px;flex:none;accent-color:var(--accent,#14766e)}
.aula-board .board-selection-actions{display:flex;gap:8px}
.aula-board .board-selection-count,.aula-board .board-selection-dimensions{font-size:11px;color:var(--muted,#526979)}
.aula-board .board-object-fields>[data-board=scale-selection]{display:inline-flex;align-items:center;gap:4px;min-height:36px;font-size:12px;padding:5px 8px}
.aula-board .board-object-fields [data-setting=scale]{width:65px}
.aula-board .board-document-size{position:absolute;bottom:7px;right:8px;pointer-events:none;background:#fffdf5d9;color:#193345;font-size:11px;padding:5px 7px;border-radius:4px;line-height:1}
.aula-board .board-messages{display:flex;flex-wrap:wrap;justify-content:space-between;gap:3px 12px;padding:5px 0;flex:none}
.aula-board .board-messages p{font-size:12px;line-height:1.4;margin:0;overflow-wrap:anywhere}
.aula-board .board-status{flex:1 1 230px}
.aula-board .board-save-status{color:var(--muted,#526979);flex:1 1 260px;text-align:right}
.aula-board .board-save-status[data-state=error]{border-left:3px solid #a14f00;background:#fff2db;color:#643200;font-weight:600;padding:4px 8px;text-align:left}
.aula-board .board-help{font-size:12px;line-height:1.5;padding:7px 10px;flex:none;margin:0}
.aula-board .board-help p{margin:8px 0}
.board-maximized .aula-board .board-stage{height:auto;flex:1 1 0;min-height:160px}
@media(max-width:600px){.aula-board .board-toolbar{gap:3px}.aula-board .board-icon{width:36px;min-width:36px;height:40px;min-height:40px;padding:7px}.aula-board .board-width input{width:65px}.aula-board .board-context{gap:5px}.aula-board .board-object-choice{flex:1 1 140px;max-width:none}.aula-board .board-view-controls{gap:2px}.aula-board .board-view-controls output{min-width:37px}.aula-board .board-view-controls>[data-board=zoom-100]{padding:4px}.aula-board .board-save-status{text-align:left}.aula-board .board-stage{min-height:260px;height:58dvh;flex-basis:58dvh}.aula-board .board-object-fields{width:100%}.aula-board .board-text-content{flex-basis:100%}.aula-board .board-popover{top:90px}.board-maximized .aula-board .board-stage{min-height:160px;height:auto;flex-basis:0}}
@media print{.aula-board .board-top,.aula-board .board-messages,.aula-board .board-help,.aula-board .board-overlay,.aula-board .board-document-size{display:none!important}.aula-board .board-stage{break-inside:avoid}}
/* 1.9.0: the object list belongs beside the drawing surface, not above it. */
.aula-board .board-workspace{display:flex;gap:10px;position:relative;min-width:0;min-height:300px;flex:1 1 var(--board-stage-height,65dvh);height:var(--board-stage-height,65dvh)}
.aula-board .board-workspace>.board-stage{flex:1 1 0;min-width:0;height:100%;width:auto;min-height:0}
.aula-board .board-objects{display:flex;flex-direction:column;gap:8px;flex:0 0 250px;width:250px;max-width:35%;min-height:0;padding:12px;background:var(--paper,#fff);border:1px solid var(--board-line);border-radius:10px;line-height:1.4}
.aula-board .board-objects-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.aula-board .board-objects-head strong{font-size:15px}
.aula-board .board-objects p{font-size:12px;margin:0;color:var(--muted,#526979)}
.aula-board .board-objects .board-selection-list{flex:1;max-height:none;min-height:0;overflow:auto;overscroll-behavior:contain}
.aula-board .board-selection-list label{border:1px solid transparent;border-radius:6px;line-height:1.4;font-size:12px;cursor:pointer}
.aula-board .board-selection-list label.is-selected{background:var(--soft,#e9f5f1);border-color:var(--accent,#14766e)}
.aula-board .board-selection-list label>span{display:flex;align-items:center;flex:none}
.aula-board .board-selection-list label svg{width:18px;height:18px;flex:none}
.aula-board .board-selection-actions>button{display:flex;align-items:center;gap:5px;min-height:40px;font-size:12px;padding:6px 8px}
.aula-board .board-shape-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
.aula-board .board-shape-options button{min-width:0;font-size:12px}
.aula-board .board-fill-controls{display:flex;align-items:center;gap:8px 14px;flex-wrap:wrap;padding:6px 0 8px;font-size:12px}
.aula-board .board-fill-controls label{display:flex;align-items:center;gap:6px;margin:0;font-size:12px}
.aula-board .board-fill-controls input[type=number]{width:65px;min-height:36px;padding:5px}
.aula-board .board-fill-controls input[type=range]{width:125px;accent-color:var(--accent,#14766e)}
.aula-board .board-fill-controls output{min-width:35px}
.aula-board .board-fill-controls>span{font-size:11px;color:var(--muted,#526979)}
.board-maximized .aula-board .board-workspace{height:auto;flex:1 1 0;min-height:160px}
.board-maximized .aula-board .board-workspace>.board-stage{height:auto;min-height:160px}
@media(max-width:700px){.aula-board .board-workspace{height:58dvh;min-height:260px;flex-basis:58dvh}.aula-board .board-objects{position:absolute;z-index:7;right:0;top:0;bottom:0;width:min(280px,88%);max-width:none;box-shadow:-6px 0 18px #19334524}.aula-board .board-fill-controls{gap:5px 9px}.aula-board .board-fill-controls input[type=range]{width:90px}.board-maximized .aula-board .board-workspace{height:auto;flex-basis:0;min-height:160px}}
@media print{.aula-board .board-objects{display:none!important}.aula-board .board-workspace{display:block}}
/* 1.9.1: a stable ribbon; settings live in anchored popovers. */
.aula-board .board-top{z-index:8}
.aula-board .board-menu-row{display:flex;align-items:center;flex-wrap:wrap;gap:5px;padding:4px 0 7px;border-bottom:1px solid var(--board-line)}
.aula-board .board-command{width:auto;min-width:0;gap:5px;padding:7px 9px;font-size:12px;white-space:nowrap}
.aula-board .board-command span{line-height:1.1}
.aula-board .board-ribbon{display:flex;align-items:stretch;justify-content:flex-start;flex-wrap:wrap;gap:8px;padding:8px 0}
.aula-board .board-ribbon-group{display:flex;flex-direction:column;align-items:flex-start;gap:4px;padding:0 8px 0 0;border-right:1px solid var(--board-line);min-width:0;max-width:100%}
.aula-board .board-ribbon-group:last-child{border-right:0}
.aula-board .board-group-controls{display:flex;align-items:center;flex-wrap:wrap;gap:4px;min-height:50px;max-width:100%}
.aula-board .board-group-label{font-size:10px;line-height:1.2;color:var(--muted,#526979);padding-left:3px}
.aula-board .board-ribbon .board-command{display:flex;flex-direction:column;width:62px;min-width:62px;height:50px;padding:4px;font-size:11px;gap:4px}
.aula-board .board-ribbon [data-popover=color]::after{left:10px;right:10px;bottom:1px;height:2px}
.aula-board .board-footer{display:flex;align-items:center;justify-content:flex-start;gap:12px;flex-wrap:wrap;padding:5px 0;flex:none}
.aula-board .board-footer .board-view-controls{margin:0;gap:4px}
.aula-board .board-popover{position:fixed;z-index:300;max-width:calc(100vw - 16px);max-height:calc(100dvh - 16px);box-sizing:border-box;top:auto;left:auto;overscroll-behavior:contain;overflow:auto}
.aula-board .board-popover .board-object-fields{display:flex;flex-wrap:wrap;align-items:center;gap:8px;width:100%}
.aula-board .board-popover .board-object-fields label{display:flex;flex-direction:row;align-items:center;gap:5px}
.aula-board .board-popover .board-object-fields>.board-icon{width:40px;min-width:40px;justify-content:center;padding:8px}
.aula-board .board-popover input[type=range]{width:100%;accent-color:var(--accent,#14766e);min-height:28px}
.aula-board .board-popover .board-colors button{min-height:38px}
.aula-board .board-shape-options{grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}
.aula-board .board-shape-options button{flex-direction:column;align-items:center;justify-content:flex-start;gap:5px;padding:8px 4px;min-height:65px;text-align:center;white-space:normal;line-height:1.25;font-size:11px}
.aula-board .board-shape-options svg{width:25px;height:25px;flex:none}
.aula-board .board-text-fields{margin-top:4px}
.aula-board .board-messages{justify-content:flex-start;gap:3px 16px}
.aula-board .board-save-status{text-align:left;flex:0 1 auto}
.aula-board .board-status{flex:0 1 auto}
@media(max-width:600px){.aula-board .board-menu-row{gap:4px}.aula-board .board-menu-row .board-command{padding:6px;font-size:11px;gap:3px}.aula-board .board-menu-row .board-command svg{width:17px;height:17px}.aula-board .board-ribbon{gap:6px}.aula-board .board-ribbon-group{padding-right:5px}.aula-board .board-ribbon .board-command{width:58px;min-width:58px}.aula-board .board-group-controls{gap:3px}.aula-board .board-footer{gap:4px 8px}.aula-board .board-footer .board-view-controls{flex-wrap:wrap}.aula-board .board-popover{top:auto}.aula-board .board-text-fields input{max-width:78px}}
@media print{.aula-board .board-menu-row,.aula-board .board-ribbon,.aula-board .board-footer,.aula-board .board-popover{display:none!important}}
.aula-board [data-board="zoom-100"]{display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
.aula-board [data-board="zoom-100"] .aula-icon{width:18px;height:18px;flex:none}