.student-docs{min-height:100vh}.docs-section-head{border-bottom:0;padding-bottom:0}.docs-muted-line{color:var(--ink-subtle);font-size:var(--type-body)}.docs-error-line{color:var(--color-error);font-size:var(--type-body)}.student-docs .docs-download-line{align-items:flex-start;gap:.75rem;margin:1.25rem 0 2rem;display:flex}.student-docs .docs-download-line .docs-muted-line{align-self:center}.docs-inline-button{border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--ink-muted);font-size:var(--type-label);white-space:nowrap;cursor:pointer;background:0 0;align-items:center;gap:.3rem;padding:.25rem .6rem;transition:border-color .15s,color .15s;display:inline-flex}.docs-inline-button:hover:not(:disabled){border-color:var(--color-primary);color:var(--color-primary)}.docs-inline-button:disabled{opacity:.55;cursor:wait}.student-docs .assignment-matrix-wrap{border-radius:var(--radius-sm);max-width:100%;overflow-x:auto}.student-docs .assignment-matrix-wrap:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.student-docs .assignment-matrix{table-layout:fixed;min-width:680px}.student-docs .assignment-matrix th,.student-docs .assignment-matrix td{vertical-align:top;width:8.75rem}.student-docs .assignment-matrix th:first-child{width:10.5rem}.student-docs .assignment-matrix tbody th{border-bottom:1px solid var(--docs-rule);padding:var(--space-sm) var(--space-md);color:var(--docs-heading);background:var(--card);font-weight:var(--weight-semibold);line-height:var(--leading-body);text-align:left}.student-docs .assignment-matrix tbody tr:last-child th{border-bottom:0}.student-docs .assignment-matrix td.is-public{background:color-mix(in srgb, var(--color-success) 8%, var(--card))}.student-docs .assignment-matrix-actions{gap:.35rem;display:grid}.student-docs .assignment-matrix-download{border:1px solid color-mix(in srgb, var(--color-success) 38%, var(--border));border-radius:var(--radius-sm);width:100%;min-height:2.25rem;color:color-mix(in srgb, var(--color-success) 72%, var(--ink));background:color-mix(in srgb, var(--color-success) 7%, var(--card));font:inherit;font-size:var(--type-label);font-weight:var(--weight-semibold);white-space:nowrap;cursor:pointer;justify-content:center;align-items:center;gap:.35rem;padding:.35rem .55rem;display:inline-flex}.student-docs .assignment-matrix-download:hover:not(:disabled){border-color:var(--color-success);background:color-mix(in srgb, var(--color-success) 13%, var(--card))}.student-docs .assignment-matrix-download:disabled{border-color:var(--border);color:var(--ink-subtle);background:color-mix(in srgb, var(--ink-subtle) 5%, var(--card));cursor:not-allowed}.student-docs .sample-preview{overscroll-behavior:contain;border:1px solid var(--docs-rule,var(--border));border-radius:var(--radius-sm);background:color-mix(in srgb, var(--ink) 4%, transparent);gap:.75rem;height:clamp(300px,56vh,560px);margin:1rem 0 0;padding:.75rem;display:grid;overflow-y:auto}.student-docs .sample-preview img{border:1px solid var(--docs-rule,var(--border));background:#fff;width:100%;height:auto;display:block}.student-docs .sample-preview:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.student-docs .sample-zoom{border:1px solid var(--docs-rule,var(--border));border-radius:var(--radius-sm);background:var(--canvas);width:min(1180px,94vw);max-width:none;max-height:88vh;margin:auto;padding:0;overflow:hidden}.student-docs .sample-zoom[open]{flex-direction:column;display:flex}.student-docs .sample-zoom::backdrop{background:#25231f8c}.student-docs .sample-zoom>header{border-bottom:1px solid var(--docs-rule,var(--border));background:var(--card);justify-content:space-between;align-items:center;gap:1rem;padding:.6rem .75rem .6rem 1rem;display:flex}.student-docs .sample-zoom>header strong{font-size:var(--type-body)}.student-docs .sample-zoom>header button{border-radius:var(--radius-sm);color:var(--ink-muted);cursor:pointer;background:0 0;border:0;padding:.3rem;transition:color .15s;display:inline-flex}.student-docs .sample-zoom>header button:hover{color:var(--color-primary)}.student-docs .sample-zoom-pages{overscroll-behavior:contain;flex:1;gap:1rem;min-height:0;padding:1rem;display:grid;overflow-y:auto}.student-docs .sample-zoom-pages img{border:1px solid var(--docs-rule,var(--border));background:#fff;width:100%;height:auto;display:block}@media (max-width:700px){.student-docs .sample-preview{height:300px;padding:.5rem}.student-docs .docs-download-line{flex-wrap:wrap}.student-docs .sample-zoom-pages{padding:.5rem}}.student-docs .assignment-form{gap:.85rem;max-width:780px;margin:.75rem 0 1.75rem;display:grid}.student-docs .assignment-dropzone{border:1px dashed var(--border);border-radius:var(--radius-sm);min-height:148px;color:var(--ink-muted);font-size:var(--type-body);text-align:center;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:.5rem;padding:1.5rem 1.25rem;transition:border-color .15s,background .15s;display:flex;position:relative}.student-docs .assignment-dropzone:hover{border-color:var(--color-primary)}.student-docs .assignment-dropzone.locked,.student-docs .assignment-dropzone.locked:hover{border-color:var(--border);color:var(--ink-subtle);background:var(--panel);cursor:not-allowed;border-style:solid}.student-docs .assignment-dropzone.uploading,.student-docs .assignment-dropzone.uploading:hover{border-color:var(--color-primary);background:color-mix(in srgb, var(--color-primary) 4%, var(--card));cursor:wait;border-style:solid}.student-docs .assignment-dropzone.dragging,.student-docs .assignment-dropzone.selected{border-color:var(--color-primary);background:color-mix(in srgb, var(--color-primary) 4%, transparent);border-style:solid}.student-docs .assignment-dropzone.dragging{background:color-mix(in srgb, var(--color-primary) 8%, transparent)}.student-docs .assignment-dropzone.dragging>*{pointer-events:none}.student-docs .assignment-dropzone input[type=file]{opacity:0;width:1px;height:1px;position:absolute}.student-docs .assignment-dropzone:focus-within{border-color:var(--color-primary);border-style:solid}.student-docs .assignment-dropzone strong{overflow-wrap:anywhere;max-width:100%;color:var(--ink);font-weight:var(--weight-semibold)}.student-docs .assignment-dropzone small{color:var(--ink-subtle);font-size:var(--type-label)}.student-docs .assignment-file-icon{color:var(--ink-subtle);flex-shrink:0;display:inline-flex}.student-docs .assignment-upload-state{justify-items:center;gap:.45rem;width:min(420px,100%);display:grid}.student-docs .assignment-upload-spinner{border:3px solid color-mix(in srgb, var(--color-primary) 18%, var(--border));border-top-color:var(--color-primary);border-radius:50%;width:2.25rem;height:2.25rem;animation:.8s linear infinite assignment-spinner-rotate}.student-docs .assignment-upload-detail{color:var(--ink-muted);font-size:var(--type-label)}.student-docs .assignment-upload-track{background:color-mix(in srgb, var(--color-primary) 12%, var(--border));border-radius:999px;width:100%;height:4px;margin-top:.25rem;position:relative;overflow:hidden}.student-docs .assignment-upload-track i{border-radius:inherit;background:var(--color-primary);width:42%;height:100%;animation:1.15s ease-in-out infinite assignment-progress-slide;position:absolute;top:0;left:-42%}.student-docs .docs-action-button{border:1px solid var(--color-primary);border-radius:var(--radius-sm);color:#fff;background:var(--color-primary);width:auto;font-size:var(--type-body);cursor:pointer;justify-self:start;align-items:center;gap:.35rem;padding:.5rem 1.1rem;line-height:1.4;text-decoration:none;transition:background .15s;display:inline-flex}.student-docs .docs-action-button:hover{color:#fff;background:var(--color-primary-dark)}@keyframes assignment-spinner-rotate{to{transform:rotate(360deg)}}@keyframes assignment-progress-slide{0%{left:-42%}55%{width:56%}to{width:42%;left:100%}}@media (prefers-reduced-motion:reduce){.student-docs .assignment-upload-spinner{animation-duration:1.8s}.student-docs .assignment-upload-track i{width:64%;animation:none;left:18%}}.student-docs .docs-outline-button{border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--ink-muted);font-size:var(--type-body);white-space:nowrap;cursor:pointer;background:0 0;align-items:center;gap:.35rem;padding:.5rem 1.1rem;line-height:1.4;transition:border-color .15s,color .15s;display:inline-flex}.student-docs .docs-outline-button:hover{border-color:var(--color-primary);color:var(--color-primary)}.student-docs .assignment-message{border-left:3px solid var(--border);font-size:var(--type-label);line-height:var(--leading-body);padding:.5rem .85rem}.student-docs .assignment-message.error{border-left-color:var(--color-error);color:var(--color-error)}.student-docs .assignment-message.success{border-left-color:var(--color-success);color:var(--ink-muted);gap:.15rem;display:grid}.student-docs .assignment-message.success strong{color:var(--ink)}.student-docs .assignment-message.success small{overflow-wrap:anywhere;color:var(--ink-subtle)}.student-docs .assignment-table{table-layout:fixed;min-width:640px}.student-docs .assignment-table td{vertical-align:middle}.student-docs .assignment-record{gap:.75rem;display:grid}.student-docs .assignment-teacher-feedback{border:1px solid color-mix(in srgb, var(--color-primary) 30%, var(--border));border-left:3px solid var(--color-primary);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--color-primary) 5%, var(--card));padding:.9rem 1rem}.student-docs .assignment-teacher-feedback>span{color:var(--color-primary);font-size:var(--type-label);margin-bottom:.15rem;font-weight:700;display:block}.student-docs .assignment-teacher-feedback h3,.student-docs .assignment-teacher-feedback p{margin:0}.student-docs .assignment-teacher-feedback p{color:var(--ink-muted);line-height:var(--leading-body);white-space:pre-wrap;margin-top:.5rem}.student-docs .assignment-teacher-feedback p+p{margin-top:var(--space-sm)}.student-docs .assignment-teacher-feedback small{color:var(--ink-subtle);margin-top:.6rem;display:block}.student-docs .assignment-table-wrap{border-radius:var(--radius-sm);max-width:100%;overflow-x:auto}.student-docs .assignment-table-wrap:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.student-docs .assignment-table th:nth-child(2),.student-docs .assignment-table td:nth-child(2){width:12rem}.student-docs .assignment-table th:nth-child(3),.student-docs .assignment-table td:nth-child(3){width:8.5rem}.student-docs .assignment-table th:nth-child(4),.student-docs .assignment-table td:nth-child(4){width:6rem}.student-docs .assignment-table td:first-child strong{overflow-wrap:anywhere}.student-docs .assignment-file-cell{min-width:0;display:block}.student-docs .assignment-reupload-note{border:1px solid var(--border);border-left:3px solid var(--color-primary);border-radius:var(--radius-sm);color:var(--ink-muted);background:color-mix(in srgb, var(--color-primary) 4%, var(--card));font-size:var(--type-label);line-height:var(--leading-body);margin:0;padding:.65rem .8rem}.student-docs .visibility-switch{min-height:2.25rem;color:var(--ink-muted);font-size:var(--type-label);white-space:nowrap;cursor:pointer;background:0 0;border:0;align-items:center;gap:.55rem;padding:0;line-height:1;transition:color .15s;display:inline-flex}.student-docs .visibility-switch i{box-sizing:border-box;border:1px solid var(--line-strong);background:color-mix(in srgb, var(--ink-subtle) 12%, var(--card));border-radius:999px;flex-shrink:0;width:2.65rem;height:1.5rem;transition:border-color .15s,background .15s;position:relative}.student-docs .visibility-switch i:after{content:"";background:var(--card);border-radius:50%;width:1.05rem;height:1.05rem;transition:transform .17s cubic-bezier(.2,.8,.2,1);position:absolute;top:.16rem;left:.16rem;box-shadow:0 1px 3px #25231f47}.student-docs .visibility-switch:hover:not(:disabled) i{border-color:var(--ink-subtle)}.student-docs .visibility-switch.active{color:var(--color-success)}.student-docs .visibility-switch.active i{border-color:var(--color-success);background:var(--color-success)}.student-docs .visibility-switch.active i:after{transform:translate(1.17rem)}.student-docs .visibility-switch:disabled{opacity:.55;cursor:wait}.student-docs .assignment-remove{border:1px solid color-mix(in srgb, var(--color-error) 42%, var(--border));border-radius:var(--radius-sm);min-height:2.25rem;color:var(--color-error);font:inherit;font-size:var(--type-label);white-space:nowrap;cursor:pointer;background:0 0;justify-content:center;align-items:center;gap:.35rem;padding:.35rem .65rem;display:inline-flex}.student-docs .assignment-remove:hover:not(:disabled){border-color:var(--color-error);background:color-mix(in srgb, var(--color-error) 6%, transparent)}.student-docs .assignment-remove:disabled{opacity:.55;cursor:wait}@media (max-width:700px){.student-docs .assignment-table th:nth-child(2),.student-docs .assignment-table td:nth-child(2){width:10rem}.student-docs .assignment-table th:nth-child(3),.student-docs .assignment-table td:nth-child(3){width:7rem}}.assignment-remove-dialog{border:1px solid var(--border);border-radius:var(--radius-lg);width:min(480px,100vw - 2rem);max-height:calc(100vh - 2rem);color:var(--ink);background:var(--card);margin:auto;padding:0;position:fixed;inset:0;overflow:auto;box-shadow:0 24px 72px #25231f3d}.assignment-remove-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#25231f61}.assignment-remove-dialog[open]{animation:.18s cubic-bezier(.2,.8,.2,1) assignment-dialog-enter}.assignment-remove-dialog-surface{padding:2rem;position:relative}.assignment-remove-dialog-close{border-radius:var(--radius-sm);width:2rem;height:2rem;color:var(--ink-subtle);cursor:pointer;background:0 0;border:0;place-items:center;display:grid;position:absolute;top:1rem;right:1rem}.assignment-remove-dialog-close:hover{color:var(--ink);background:var(--panel)}.assignment-remove-dialog h2{font-size:var(--type-heading-2);border:0;margin:0 2.5rem .55rem 0;padding:0}.assignment-remove-dialog h2+p{color:var(--ink-muted);line-height:var(--leading-body);margin:0}.assignment-remove-file{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);align-items:center;gap:.75rem;margin-top:1.25rem;padding:.85rem;display:flex}.assignment-remove-file>span{color:var(--ink-subtle);display:inline-flex}.assignment-remove-file>div{gap:.15rem;min-width:0;display:grid}.assignment-remove-file strong{overflow-wrap:anywhere;font-size:var(--type-body)}.assignment-remove-file small{color:var(--ink-subtle);font-size:var(--type-label)}.assignment-remove-dialog-actions{border-top:1px solid var(--border);justify-content:flex-end;gap:.65rem;margin-top:1.5rem;padding-top:1rem;display:flex}.assignment-remove-cancel,.assignment-remove-confirm{border-radius:var(--radius-sm);min-height:2.5rem;font:inherit;font-size:var(--type-body);cursor:pointer;justify-content:center;align-items:center;gap:.35rem;padding:.5rem 1rem;display:inline-flex}.assignment-remove-cancel{border:1px solid var(--border);color:var(--ink-muted);background:var(--card)}.assignment-remove-cancel:hover{border-color:var(--ink-subtle);color:var(--ink)}.assignment-remove-confirm{border:1px solid var(--color-error);color:#fff;background:var(--color-error)}.assignment-remove-confirm:hover{border-color:color-mix(in srgb, var(--color-error) 82%, #000);background:color-mix(in srgb, var(--color-error) 82%, #000)}@keyframes assignment-dialog-enter{0%{opacity:0;transform:translateY(10px)scale(.985)}to{opacity:1;transform:translateY(0)scale(1)}}@media (max-width:520px){.assignment-remove-dialog-surface{padding:1.5rem}.assignment-remove-dialog-actions{display:grid}.assignment-remove-confirm{grid-row:1}}@media (prefers-reduced-motion:reduce){.assignment-remove-dialog[open]{animation:none}}.week-workspace .chapter-section{margin-bottom:0;padding-top:0}.week-workspace .chapter-section>.chapter-title{border-bottom:1px solid var(--docs-rule,var(--border));color:var(--docs-heading,var(--ink));font-size:var(--type-heading-2);font-weight:var(--weight-bold);line-height:var(--leading-heading);letter-spacing:var(--tracking-heading);margin:0 0 .7rem;padding-bottom:.5rem}.week-workspace .chapter-section+.chapter-section{margin-top:var(--docs-section-gap)}