.file-exchange { display: flex; flex-direction: column; gap: 20px; max-width: 1140px; width: 100%; margin: 0 auto; }
.file-heading h2 { font-size: 24px; letter-spacing: -.5px; margin-bottom: 5px; }
.file-heading p, .file-hint { color: var(--muted); font-size: 13px; }
.file-layout { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(240px, 1fr); gap: 20px; align-items: start; }
.file-drop { border: 1px dashed var(--border2); border-radius: 16px; padding: 32px 18px; text-align: center; background: rgba(34,211,238,.025); }
.file-drop.dragging { border-color: var(--cyan); background: rgba(34,211,238,.09); }
.file-drop h3 { display: block; margin: 8px 0; font-size: 17px; }
.file-drop-icon { color: var(--cyan); font-size: 32px; line-height: 1; }
.file-drop .btn { margin-top: 18px; }
.file-selected { margin-top: 16px; padding: 12px; border-radius: 12px; background: var(--surface2); display: flex; gap: 12px; align-items: center; justify-content: space-between; }
.file-selected-name, .file-row-name { overflow-wrap: anywhere; font-weight: 650; }
.file-selected-meta { color: var(--muted); font-size: 12px; margin-top: 3px; }
.file-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.file-message { margin-top: 12px; font-size: 13px; color: var(--muted); overflow-wrap: anywhere; }
.file-message.error { color: var(--red); }
.file-message.success { color: var(--mint); }
.file-progress { margin-top: 16px; }
.file-progress .file-hint { margin-top: 7px; }
.file-exchange progress { width: 100%; height: 9px; border: none; border-radius: 8px; overflow: hidden; accent-color: var(--cyan); background: var(--surface3); }
.file-exchange progress::-webkit-progress-bar { background: var(--surface3); border-radius: 8px; }
.file-exchange progress::-webkit-progress-value { background: linear-gradient(90deg, var(--cyan), var(--mint)); border-radius: 8px; }
.file-exchange progress::-moz-progress-bar { background: var(--cyan); border-radius: 8px; }
.file-result { margin-top: 18px; padding: 16px; border: 1px solid rgba(52,211,153,.3); background: rgba(52,211,153,.045); border-radius: 14px; }
.file-result h3 { color: var(--mint); margin-bottom: 8px; }
.file-link-row { display: flex; align-items: center; gap: 8px; margin: 12px 0; }
.file-link-row input { flex: 1; min-width: 0; width: 100%; font-size: 12px; }
.file-link-row .btn { flex-shrink: 0; }
.file-result a { color: var(--cyan); font-size: 13px; }
.file-quota-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.file-quota-top h3 { margin: 0; }
.file-remaining { font-size: 31px; font-weight: 800; color: var(--mint); letter-spacing: -1px; margin-top: 24px; font-variant-numeric: tabular-nums; }
.file-quota progress { margin-top: 20px; }
.file-quota dl { margin-top: 16px; display: grid; grid-template-columns: 1fr auto; gap: 10px; font-size: 13px; }
.file-quota dt { color: var(--muted); }
.file-quota dd { text-align: right; font-variant-numeric: tabular-nums; }
.file-admin summary { font-weight: 750; cursor: pointer; }
.file-admin summary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 6px; }
.file-admin-body { margin-top: 18px; }
.file-admin form { display: flex; gap: 10px; align-items: flex-end; margin-top: 14px; flex-wrap: wrap; }
.file-admin label { flex: 1; min-width: 180px; max-width: 420px; }
.file-admin-bar { display: flex; gap: 10px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.file-admin-bar .file-actions { margin-top: 0; }
.file-table-wrap { overflow-x: auto; margin-top: 18px; }
.file-table { min-width: 540px; }
.file-table td:first-child { width: 45%; }
.file-table .file-row-actions { display: flex; gap: 8px; justify-content: flex-end; }
.file-table td { cursor: default; }
.file-empty { text-align: center; padding: 24px 12px; color: var(--muted); }
@media (max-width: 1000px) { .file-layout { grid-template-columns: 1fr; } .file-quota dl { grid-template-columns: 1fr auto 1fr auto; } .file-remaining { margin-top: 14px; } }
@media (max-width: 600px) { .file-quota dl { grid-template-columns: 1fr auto; } .file-link-row { flex-wrap: wrap; } .file-link-row input { flex-basis: 100%; } .file-drop { padding: 24px 12px; } }