.relation-content-form textarea { width: 100%; font-family: ui-monospace, Consolas, monospace; }
.relation-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1rem 0; }
.relation-tree, .relation-tree ul { display: grid; gap: .45rem; }
.relation-markdown img { display: block; max-width: 100%; height: auto; margin: 1rem auto; }
.relation-markdown table { width: 100%; border-collapse: collapse; }
.relation-markdown th, .relation-markdown td { padding: .45rem; border: 1px solid #d8dee8; }
.relation-uploader { display: grid; gap: .75rem; margin-top: 1rem; }
.relation-upload-dropzone { align-items: center; background: linear-gradient(145deg, #fff 0%, #f7faf9 100%); border: 3px dashed #7f9f91; border-radius: 1rem; color: #6d9484; cursor: pointer; display: flex; justify-content: center; min-height: clamp(150px, 24vw, 230px); overflow: hidden; padding: 1.25rem; position: relative; text-align: center; transition: border-color .15s ease, background .15s ease, transform .15s ease; }
.relation-upload-dropzone:hover, .relation-upload-dropzone:focus-within { background: #f1f7f4; border-color: #557d6e; }
.relation-upload-dropzone.is-dragover { background: #e2f0e9; border-color: #3f6c5b; transform: scale(1.005); }
.relation-upload-prompt { font-size: clamp(1.2rem, 3.2vw, 2rem); font-weight: 700; line-height: 1.3; max-width: 90%; pointer-events: none; }
.relation-upload-dropzone input[type="file"] { cursor: pointer; height: 100%; inset: 0; opacity: 0; position: absolute; width: 100%; }
.relation-upload-order { display: grid; gap: .5rem; padding: 0; margin: 0; list-style: none; overflow: visible; }
.relation-upload-order li { display: grid; grid-template-columns: auto minmax(12rem, 1fr) auto; align-items: center; gap: .6rem; padding: .65rem; border: 1px solid #d8dee8; border-radius: .4rem; }
.relation-upload-file-details { display: grid; min-width: 0; gap: .35rem; }
.relation-upload-controls { display: flex; flex-wrap: wrap; gap: .3rem; }
.relation-upload-file-preview { box-sizing: border-box; height: 64px; width: 64px; }
.relation-upload-order img { object-fit: contain; border: 1px solid #d8dee8; border-radius: .35rem; cursor: zoom-in; }
.relation-upload-document-preview { background: #f7faf9 center / 42px 50px no-repeat; border: 1px solid #9eafa8; border-radius: .35rem; display: block; }
.relation-upload-document-pdf { background-image: url("../core/icons/files/pdf.597e39587f4d.svg"); }
.relation-upload-document-word { background-image: url("../core/icons/files/word.652073724d08.svg"); }
.relation-upload-document-excel { background-image: url("../core/icons/files/excel.c3d180166295.svg"); }
.relation-upload-document-file { background-image: url("../core/icons/files/file.47e9eab14595.svg"); }
.relation-upload-markdown { box-sizing: border-box; width: 100%; min-width: 0; font-family: ui-monospace, Consolas, monospace; }
.relation-upload-progress { min-height: 1.5rem; color: #475569; }
.relation-upload-rules { background: #fff4cc; border: 4px solid #d92d20; border-radius: .75rem; box-shadow: 0 4px 0 rgba(180, 35, 24, .18); color: #6b160f; font-size: clamp(1.05rem, 2.8vw, 1.35rem); line-height: 1.45; padding: 1rem 1.15rem; }
.relation-upload-rules > strong { align-items: center; color: #b42318; display: flex; font-size: clamp(1.3rem, 3.8vw, 1.75rem); gap: .55rem; text-transform: uppercase; }
.relation-upload-rules > strong span { font-size: 1.4em; line-height: 1; }
.relation-upload-rules ol { margin: .75rem 0 .4rem; padding-left: 1.6em; }
.relation-upload-rules li + li { margin-top: .35rem; }
.relation-upload-rules p { font-size: .9em; margin: .55rem 0 0; }
.relation-upload-warning { background: #ffe7e3; border: 4px solid #d92d20; border-radius: .75rem; box-shadow: 0 4px 0 rgba(180, 35, 24, .18); color: #9f1c12; font-size: clamp(1.1rem, 3vw, 1.4rem); font-weight: 800; line-height: 1.4; padding: 1rem 1.15rem; }
.relation-upload-warning[hidden] { display: none; }
.student-submission-success { background: #ddf7e8; border: 3px solid #3f8b63; border-radius: .75rem; color: #246541; font-size: clamp(1.15rem, 3vw, 1.5rem); font-weight: 800; margin-top: 1rem; padding: .9rem 1rem; text-align: center; }
.student-submission-file-row { align-items: center; display: flex; flex-wrap: wrap; gap: .65rem; margin-top: .8rem; }
.student-submission-file-row .inline-document-button { margin: 0; }
.relation-submission-comment-label { font-weight: 700; margin-bottom: -.35rem; }
.relation-submission-comment { box-sizing: border-box; min-height: 7rem; resize: vertical; width: 100%; }
.student-submission-comment { background: #f7faf9; border: 1px solid #cbd8d2; border-radius: .6rem; margin-top: .8rem; padding: .75rem .9rem; }
.student-submission-comment p { margin: .4rem 0 0; overflow-wrap: anywhere; }
.student-withdraw-button { --material-icon-size: 34px; }
.relation-attachment-row { display: grid; grid-template-columns: minmax(10rem, 1fr) minmax(16rem, 2fr) auto; align-items: center; gap: .75rem; padding: .75rem 0; border-bottom: 1px solid #d8dee8; }
.relation-attachment-row code { overflow-wrap: anywhere; }
.relation-delete-error { color: #9f332e; grid-column: 1 / -1; }
.image-lightbox-actions { align-items: center; bottom: max(18px, env(safe-area-inset-bottom)); display: flex; gap: .75rem; justify-content: center; left: 50%; position: fixed; transform: translateX(-50%); z-index: 1001; }
.image-lightbox-actions[hidden] { display: none; }
.image-lightbox-action { align-items: center; background: #7f9f91; border: 1px solid #dce9e4; border-radius: .5rem; color: #fff; display: inline-flex; font-size: 2rem; height: 52px; justify-content: center; line-height: 1; min-height: 52px; padding: 0; width: 60px; }
.relation-actions-footer { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1rem; }
.relation-danger-zone { margin-top: 1rem; }
@media (max-width: 760px) {
  .relation-attachment-row { grid-template-columns: 1fr; }
  .relation-upload-order li { grid-template-columns: auto minmax(0, 1fr); }
  .relation-upload-controls { grid-column: 1 / -1; }
}
.result-large { font-size: 1.4rem; font-weight: 700; }