/* Files: a compact browsing surface and a full-width Markdown reader. */
.bb-files, .bb-file-reader { height: 100%; min-height: 0; min-width: 0; display: flex; flex-direction: column; position: relative; color: var(--bb-text-1); background: var(--bb-bg); }
.bb-files button, .bb-file-reader button, .bb-files-dialog button { font-family: inherit; cursor: pointer; }
.bb-files button:disabled, .bb-file-reader button:disabled, .bb-files-dialog button:disabled { opacity: .45; cursor: wait; }
.bb-files :focus-visible, .bb-file-reader :focus-visible, .bb-files-dialog :focus-visible { outline: 2px solid var(--bb-primary); outline-offset: 3px; }
.bb-files-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem 1.5rem 1rem; flex-shrink: 0; }
.bb-files-header h1 { margin: 0; font-size: 1.5rem; letter-spacing: -.035em; font-weight: 700; }
.bb-files-header p { margin: .35rem 0 0; font-size: .8rem; color: var(--bb-text-2); line-height: 1.5; }
.bb-files-actions { display: flex; align-items: center; gap: .25rem; flex-shrink: 0; }
.bb-files-icon { width: 34px; height: 34px; padding: 0; border: 0; border-radius: 7px; background: transparent; color: var(--bb-text-2); display: inline-flex; align-items: center; justify-content: center; text-decoration: none; flex-shrink: 0; }
.bb-files-icon:hover, .bb-files-icon[aria-pressed="true"], .bb-files-icon[aria-expanded="true"] { background: var(--bb-primary-light); color: var(--bb-primary); }
.bb-files-button { padding: .5rem .75rem; min-height: 36px; border: 1px solid var(--bb-border); border-radius: 7px; color: var(--bb-text-1); background: var(--bb-bg); font-size: .8rem; font-weight: 500; display: inline-flex; align-items: center; justify-content: center; gap: .4rem; white-space: nowrap; text-decoration: none; }
.bb-files-button:hover { background: var(--bb-bg-nav); }
.bb-files-primary { background: var(--bb-primary); color: #fff; border-color: var(--bb-primary); }
.bb-files-primary:hover { background: var(--bb-primary); filter: brightness(.95); }
.bb-files-tabs { display: flex; gap: 1.5rem; padding: 0 1.5rem; border-bottom: 1px solid var(--bb-border); flex-shrink: 0; }
.bb-files-tabs > button { border: 0; border-bottom: 2px solid transparent; margin-bottom: -1px; padding: .6rem .1rem .8rem; display: flex; align-items: center; gap: .5rem; background: none; color: var(--bb-text-2); font-size: .85rem; font-weight: 500; }
.bb-files-tabs > button.active { color: var(--bb-primary); border-bottom-color: var(--bb-primary); }
.bb-files-tabs > button > span:last-child { font-size: .68rem; padding: .1rem .4rem; min-width: 1.2rem; border-radius: 5px; background: var(--bb-bg-nav); text-align: center; }
.bb-files-tabs > button.active > span:last-child { background: var(--bb-primary-light); }
.bb-files-controls { display: flex; align-items: center; gap: .65rem; flex-shrink: 0; padding: 1rem 1.5rem .75rem; flex-wrap: wrap; }
.bb-files-search { flex: 1; display: flex; align-items: center; gap: .5rem; color: var(--bb-text-3); border: 1px solid var(--bb-border); border-radius: 7px; padding: 0 .65rem; background: var(--bb-bg); min-width: 160px; }
.bb-files-search:focus-within { border-color: var(--bb-primary); }
.bb-files-search input { font: inherit; font-size: .8rem; min-width: 0; width: 100%; height: 36px; border: none; outline: none; background: transparent; color: var(--bb-text-1); }
.bb-files select { font: inherit; font-size: .75rem; padding: .5rem .6rem; height: 38px; border: 1px solid var(--bb-border); border-radius: 7px; color: var(--bb-text-2); background: var(--bb-bg); max-width: 100%; }
.bb-files-expiry { font-size: .72rem; color: var(--bb-text-2); display: flex; align-items: center; gap: .5rem; }
.bb-files-collections { display: flex; align-items: center; gap: .4rem; padding: 0 1.5rem .85rem; overflow-x: auto; flex-shrink: 0; scrollbar-width: thin; }
.bb-files-collections > button { border: 1px solid transparent; background: transparent; color: var(--bb-text-2); font-size: .75rem; padding: .35rem .65rem; border-radius: 6px; white-space: nowrap; }
.bb-files-collections > button:hover { background: var(--bb-bg-nav); }
.bb-files-collections > button.active { background: var(--bb-primary-light); color: var(--bb-primary); font-weight: 500; }
.bb-files-collections > button.bb-files-organize { margin-left: auto; color: var(--bb-primary); }
.bb-files-list { flex: 1; min-height: 0; overflow-y: auto; padding: 0 1.5rem 1rem; }
.bb-files-row { display: flex; align-items: center; gap: .8rem; min-height: 74px; padding: .75rem .65rem; border-bottom: 1px solid var(--bb-border); border-radius: 4px; }
.bb-files-row:hover { background: var(--bb-bg-nav); }
.bb-files-type-icon { display: flex; align-items: center; justify-content: center; width: 38px; height: 42px; flex-shrink: 0; border-radius: 8px; color: var(--bb-text-2); background: var(--bb-bg-nav); }
.bb-files-type-icon.html { color: #a56431; background: #faf0e7; }
.bb-files-type-icon.markdown { color: var(--bb-primary); background: var(--bb-primary-light); }
.bb-files-info { flex: 1; min-width: 0; }
.bb-files-title { display: inline-flex; align-items: baseline; gap: .3rem; text-align: left; color: var(--bb-text-1); font-size: .9rem; font-weight: 500; line-height: 1.45; border: 0; padding: 0; margin: 0; background: none; text-decoration: none; overflow-wrap: anywhere; }
.bb-files-title:hover { color: var(--bb-primary); }
.bb-files-title > span { align-self: center; flex-shrink: 0; color: var(--bb-text-3); }
.bb-files-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; font-size: .7rem; margin-top: .2rem; line-height: 1.6; color: var(--bb-text-2); }
.bb-files-meta > span + span::before { content: '·'; margin-right: .4rem; color: var(--bb-text-3); }
.bb-files-format { color: var(--bb-text-2); font-size: .65rem; background: var(--bb-bg-nav); border: 1px solid var(--bb-border); border-radius: 4px; padding: .2rem .4rem; flex-shrink: 0; max-width: 90px; overflow: hidden; text-overflow: ellipsis; }
.bb-files-menu-wrap { position: relative; }
.bb-files-menu { position: fixed; width: 235px; padding: .3rem; border: 1px solid var(--bb-border); border-radius: 9px; background: var(--bb-bg); box-shadow: 0 8px 28px #182b3420; z-index: 30; max-height: calc(100dvh - 16px); overflow-y: auto; }
.bb-files-menu > button, .bb-files-menu > a { display: flex; align-items: center; gap: .6rem; width: 100%; text-align: left; border: 0; padding: .6rem .65rem; font-size: .78rem; color: var(--bb-text-1); background: none; border-radius: 5px; text-decoration: none; }
.bb-files-menu > button:hover, .bb-files-menu > a:hover { background: var(--bb-bg-nav); }
.bb-files-menu .bb-files-danger { color: #bf3b3b; }
.bb-files-menu-filename { padding: .65rem; border-top: 1px solid var(--bb-border); font-size: .7rem; overflow-wrap: anywhere; color: var(--bb-text-2); }
.bb-files-footnote { padding: 1.15rem .65rem; color: var(--bb-text-3); font-size: .7rem; line-height: 1.7; }
.bb-files-empty { padding: 3rem 1rem; text-align: center; color: var(--bb-text-2); font-size: .85rem; }
.bb-files-empty h2 { font-size: 1rem; color: var(--bb-text-1); font-weight: 500; margin: .8rem 0 .4rem; }
.bb-files-empty p { font-size: .8rem; line-height: 1.65; margin: 0; }
.bb-files-error, .bb-files-notice { display: flex; align-items: center; gap: .5rem; padding: .6rem 1rem; margin: .7rem 1.5rem 0; border-radius: 7px; font-size: .8rem; line-height: 1.5; flex-shrink: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.bb-files-error { background: #fff1f0; color: #a12c2c; }
.bb-files-error > span { flex: 1; }
.bb-files-notice { background: var(--bb-primary-light); color: var(--bb-primary); }
.bb-files-notice > span { flex: 1; min-width: 0; }
.bb-files-drop { position: absolute; inset: .6rem; z-index: 40; border: 2px dashed var(--bb-primary); background: #edf8f5f5; border-radius: 12px; display: flex; flex-direction: column; gap: .75rem; align-items: center; justify-content: center; color: var(--bb-primary); pointer-events: none; }
.bb-files-drop span { font-size: .85rem; }
.bb-files-drop-hint { display: flex; align-items: center; justify-content: center; gap: .7rem; border: 1px dashed var(--bb-border); border-radius: 8px; padding: .65rem 1rem; margin: 0 1.5rem .85rem; background: transparent; color: var(--bb-text-2); font-size: .78rem; flex-shrink: 0; }
.bb-files-drop-hint:hover { border-color: var(--bb-primary); color: var(--bb-primary); background: var(--bb-primary-light); }
.bb-files-drop-hint small { margin-left: .7rem; font-size: .68rem; color: var(--bb-text-3); }
.bb-files-dialog { color: var(--bb-text-1); background: var(--bb-bg); border: 1px solid var(--bb-border); border-radius: 13px; padding: 1.25rem; width: min(460px, calc(100vw - 2rem)); max-height: calc(100dvh - 3rem); overflow: auto; box-shadow: 0 12px 50px #0002; font-family: var(--bb-font); }
.bb-files-dialog::backdrop { background: #14282c66; }
.bb-files-dialog header { display: flex; justify-content: space-between; align-items: center; margin-bottom: .8rem; gap: 1rem; }
.bb-files-dialog h2 { margin: 0; font-size: 1.05rem; font-weight: 600; }
.bb-files-dialog p { font-size: .85rem; line-height: 1.6; overflow-wrap: anywhere; }
.bb-files-dialog label { display: flex; flex-direction: column; gap: .4rem; margin-top: .9rem; font-size: .8rem; font-weight: 500; }
.bb-files-dialog input, .bb-files-dialog select { width: 100%; min-width: 0; padding: .65rem .75rem; border: 1px solid var(--bb-border); border-radius: 7px; font: inherit; font-size: .85rem; color: var(--bb-text-1); background: var(--bb-bg); }
.bb-files-dialog .bb-files-dialog-hint { color: var(--bb-text-2); font-size: .77rem; }
.bb-files-dialog footer { display: flex; justify-content: flex-end; gap: .5rem; padding-top: .8rem; flex-wrap: wrap; }
.bb-files-dialog .bb-files-error { margin: .75rem 0; }
.bb-files-danger-button { color: #fff; background: #b73737; border-color: #b73737; }
.bb-files-danger-button:hover { background: #a12c2c; }
.bb-files-reader-header { padding: .85rem 1.25rem; border-bottom: 1px solid var(--bb-border); display: flex; gap: 1rem; align-items: center; flex-shrink: 0; }
.bb-files-reader-title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .9rem; font-weight: 500; }
.bb-files-reading-scroll { flex: 1; min-height: 0; overflow: auto; scroll-padding-top: 2rem; }
.bb-files-reading-width { max-width: 860px; margin: 0 auto; padding: 2.5rem 2.25rem 5rem; }
.bb-files-markdown { font-size: 1rem; line-height: 1.8; overflow-wrap: anywhere; }
.bb-files-markdown h1 { font-size: 2rem; line-height: 1.2; letter-spacing: -.025em; margin-top: 0; margin-bottom: 1.25rem; }
.bb-files-markdown h2 { font-size: 1.4rem; margin-top: 2rem; }
.bb-files-markdown h3 { font-size: 1.15rem; margin-top: 1.5rem; }
.bb-files-markdown p { margin-bottom: 1rem; }
.bb-files-markdown pre { padding: 1.15rem; border: 1px solid var(--bb-border); border-radius: 9px; background: var(--bb-bg-nav); margin: 1.25rem 0; }
.bb-files-markdown img { max-width: 100%; height: auto; }
.bb-files-markdown table { display: block; overflow-x: auto; font-size: .88rem; margin: 1.25rem 0; }
.bb-files-markdown th, .bb-files-markdown td { padding: .6rem .75rem; }
.bb-files-markdown blockquote { margin: 1.25rem 0; padding: .4rem 1rem; }
.bb-files-source { white-space: pre-wrap; overflow-wrap: anywhere; font-family: 'SF Mono', Consolas, monospace; font-size: .85rem; line-height: 1.8; margin: 0; }
.bb-files-outline { padding: 1rem; border: 1px solid var(--bb-border); border-radius: 9px; margin-bottom: 2rem; max-height: 240px; overflow: auto; }
.bb-files-outline a { display: block; color: var(--bb-primary); text-decoration: none; font-size: .85rem; line-height: 1.8; }
.bb-files-outline a:hover { text-decoration: underline; }
@media (max-width: 640px) {
    .bb-files-header { padding: 1rem .85rem .75rem; gap: .5rem; }
    .bb-files-header h1 { font-size: 1.25rem; }
    .bb-files-header p { display: none; }
    .bb-files-tabs { padding: 0 .85rem; }
    .bb-files-controls { padding: .85rem .85rem .65rem; gap: .5rem; }
    .bb-files-expiry { width: 100%; justify-content: flex-end; }
    .bb-files-collections { padding: 0 .85rem .65rem; }
    .bb-files-list { padding: 0 .6rem 1rem; }
    .bb-files-drop-hint { margin-left: .85rem; margin-right: .85rem; }
    .bb-files-drop-hint small { display: block; margin: .15rem 0 0; }
    .bb-files-row { gap: .6rem; padding: .7rem .25rem; }
    .bb-files-type-icon { width: 30px; height: 36px; }
    .bb-files-format { display: none; }
    .bb-files-title { font-size: .85rem; }
    .bb-files-error, .bb-files-notice { margin-left: .85rem; margin-right: .85rem; }
    .bb-files-notice { flex-wrap: wrap; }
    .bb-files-reader-header { gap: .4rem; padding: .65rem .6rem; flex-wrap: wrap; }
    .bb-files-reader-title { font-size: .8rem; min-width: 80px; }
    .bb-files-reading-width { padding: 1.5rem 1rem 3rem; }
    .bb-files-markdown h1 { font-size: 1.65rem; }
}