/* Topic-only notes. The dock never owns question, answer or navigation input. */
.dd-reading-target{position:relative}
.dd-reading-overlay{position:absolute;inset:0;display:block;width:100%;height:100%;overflow:visible;pointer-events:none;touch-action:auto;z-index:3;user-select:none;-webkit-user-select:none}
.dd-reading-target[data-reading-mode="pen"]>.dd-reading-overlay{pointer-events:auto;touch-action:pinch-zoom;cursor:crosshair}
.dd-reading-target>.dd-reading-overlay[data-reading-legacy]{pointer-events:none!important}
.dd-reading-page{display:flow-root;isolation:isolate;min-height:120px}
.dd-reading-page>.dd-reading-overlay{overflow:hidden}
.dd-reading-page[data-reading-mode="pen"]{user-select:none;-webkit-user-select:none}
.dd-reading-overlay path{pointer-events:none}
.learning-page.has-reading-tools{padding-bottom:calc(112px + env(safe-area-inset-bottom))}
.dd-reading-tools{position:fixed;z-index:35;right:max(16px,env(safe-area-inset-right));bottom:calc(16px + env(safe-area-inset-bottom) + var(--reading-viewport-bottom,0px) + var(--reading-nav-bottom,0px));max-width:calc(100vw - 32px);color:var(--text,#172d46);font:inherit}
.dd-reading-tools[hidden],.dd-reading-settings[hidden]{display:none!important}
.dd-reading-modes{display:flex;gap:2px;padding:4px;border:1px solid var(--stroke,#c5d8e6);border-radius:14px;background:var(--panel,#fff);box-shadow:0 6px 22px #101c3221}
.dd-reading-tools button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-width:44px;min-height:44px;padding:9px 12px;border:0;border-radius:10px;background:transparent;color:inherit;font:inherit;font-size:13px;font-weight:650;cursor:pointer;touch-action:manipulation}
.dd-reading-tools svg{width:19px;height:19px;flex:none}
.dd-reading-modes button[aria-pressed="true"]{background:var(--student-action,#223e68);color:#fff}
.dd-reading-modes button[aria-pressed="true"]::after{content:"";width:4px;height:4px;border-radius:50%;background:currentColor}
.dd-reading-tools button:hover{background:var(--panel2,#e8f1f9)}
.dd-reading-modes button[aria-pressed="true"]:hover{background:var(--student-action,#223e68)}
.dd-reading-tools button:disabled{opacity:.45;cursor:default}
.dd-reading-tools :is(button,select):focus-visible{outline:3px solid var(--brand2,#6caddd);outline-offset:3px}
.dd-reading-settings{box-sizing:border-box;width:270px;max-width:calc(100vw - 32px);max-height:min(55dvh,calc(100dvh - 104px - var(--reading-nav-bottom,0px) - var(--reading-viewport-bottom,0px) - env(safe-area-inset-bottom)));overflow-y:auto;overscroll-behavior:contain;margin-bottom:8px;padding:12px 14px;border:1px solid var(--stroke,#c5d8e6);border-radius:14px;background:var(--panel,#fff);box-shadow:0 6px 22px #101c3221}
.dd-reading-settings-heading{display:flex;justify-content:space-between;align-items:center;font-size:14px;margin-bottom:4px}
.dd-reading-settings-heading button{padding:8px;margin:-4px -6px -4px 0}
.dd-reading-colors{display:flex;gap:8px;margin:6px 0 12px}
.dd-reading-colors button{width:44px;padding:7px;border:1px solid transparent}
.dd-reading-colors button span{display:block;width:25px;height:25px;border-radius:50%;background:var(--reading-swatch)}
[data-theme="dark"] .dd-reading-colors button span{background:var(--reading-swatch-dark,var(--reading-swatch))}
.dd-reading-colors button[aria-pressed="true"]{border-color:var(--text,#172d46)}
.dd-reading-colors button[aria-pressed="true"] span{outline:2px solid var(--panel,#fff);outline-offset:-5px}
.dd-reading-width{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px}
.dd-reading-width select{min-width:85px;min-height:44px;border:1px solid var(--stroke,#c5d8e6);border-radius:8px;padding:8px;color:inherit;background:var(--panel,#fff);font:inherit}
.dd-reading-edit{display:flex;gap:8px;margin-top:10px}
.dd-reading-edit button{flex:1;border:1px solid var(--stroke,#c5d8e6);padding-inline:8px}
.dd-reading-settings p{margin:12px 0 0;font-size:12px;line-height:1.5;color:var(--muted,#52677b)}
.dd-reading-status{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.dd-reading-status.is-warning{position:static;display:block;box-sizing:border-box;width:270px;max-width:calc(100vw - 32px);height:auto;max-height:22dvh;overflow:auto;clip-path:none;white-space:normal;margin-top:8px;padding:10px 12px;border:1px solid var(--stroke,#c5d8e6);border-radius:10px;background:var(--panel,#fff);color:var(--text,#172d46);font-size:13px;line-height:1.5}
@media(max-height:500px) and (orientation:landscape){.dd-reading-tools{right:max(10px,env(safe-area-inset-right));bottom:calc(10px + env(safe-area-inset-bottom) + var(--reading-viewport-bottom,0px) + var(--reading-nav-bottom,0px))}.dd-reading-settings{max-height:calc(100dvh - 85px - var(--reading-nav-bottom,0px) - var(--reading-viewport-bottom,0px) - env(safe-area-inset-bottom));padding-block:8px}.dd-reading-settings p{margin-top:6px}.dd-reading-colors{margin-block:3px}.dd-reading-edit{margin-top:6px}}
@media(forced-colors:active){.dd-reading-modes button[aria-pressed="true"]{outline:2px solid Highlight}.dd-reading-overlay{forced-color-adjust:none}}