.files-page {
  padding-top: 42px;
  padding-bottom: 88px;
}

.files-intro p {
  margin-top: 8px;
  color: var(--color-secondary);
  font-size: var(--font-size-body);
}

.files-search {
  width: min(820px, 100%);
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding: 0 15px;
  border: 1px solid var(--color-hairline-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-muted);
  transition: border-color var(--motion-fast), box-shadow var(--motion-fast);
}

.files-search:focus-within {
  border-color: var(--color-focus);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-focus) 16%, transparent);
}

.files-search input {
  min-width: 0;
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--color-ink);
  font: inherit;
  font-size: var(--font-size-body);
}

.files-search kbd {
  padding: 2px 6px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-xs);
  background: var(--color-surface-subtle);
  color: var(--color-muted);
  font: 12px var(--font-sans);
}

.file-breadcrumb {
  min-height: 44px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 16px;
  color: var(--color-muted);
  font-size: var(--font-size-small);
}

.file-breadcrumb button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 4px;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-secondary);
  cursor: pointer;
  font: inherit;
  font-weight: 550;
}

.file-breadcrumb button:hover,
.file-breadcrumb button[aria-current="page"] {
  color: var(--color-ink);
}

.breadcrumb-separator {
  color: var(--color-hairline-strong);
}

.files-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.file-browser,
.recent-files {
  overflow: hidden;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.file-table-head,
.file-row {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 120px 100px 150px 24px;
  align-items: center;
  gap: 14px;
}

.file-table-head {
  min-height: 44px;
  padding: 0 20px;
  border-bottom: 1px solid var(--color-hairline);
  background: var(--color-surface-subtle);
  color: var(--color-secondary);
  font-size: var(--font-size-caption);
  font-weight: 650;
}

.file-row {
  position: relative;
  min-height: 62px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--color-hairline);
  cursor: pointer;
  transition: background var(--motion-fast);
}

.file-row:hover,
.file-row.is-selected {
  background: var(--color-surface-selected);
}

.file-row:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-focus) 30%, transparent);
  outline-offset: -3px;
}

.file-name-cell {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.file-type-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: var(--radius-md);
  background: var(--color-brand-soft);
  color: var(--color-brand-deep);
}

.file-type-icon .icon {
  width: 19px;
  height: 19px;
}

.file-type-icon.is-document {
  background: var(--color-info-soft);
  color: var(--color-info);
}

.file-name {
  overflow: hidden;
  color: var(--color-ink);
  font-size: var(--font-size-small);
  font-weight: 620;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-row > span:not(.file-name-cell) {
  color: var(--color-secondary);
  font-size: var(--font-size-small);
}

.row-chevron {
  width: 17px;
  height: 17px;
  color: var(--color-muted);
}

.file-list-foot {
  min-height: 38px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  color: var(--color-muted);
  font-size: var(--font-size-caption);
}

.file-detail-dialog {
  width: min(520px, calc(100vw - 32px));
  max-height: min(760px, calc(100dvh - 32px));
  padding: 0;
  overflow: visible;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  color: var(--color-ink);
  box-shadow: var(--shadow-md);
}

.file-detail-dialog::backdrop {
  background: rgba(13, 18, 16, 0.48);
  backdrop-filter: blur(3px);
}

.file-detail-shell {
  position: relative;
  max-height: min(760px, calc(100dvh - 32px));
  overflow: auto;
  border-radius: inherit;
}

.file-detail-close {
  position: sticky;
  z-index: 2;
  top: 16px;
  left: 16px;
  margin-bottom: calc(-1 * var(--close-target-size));
}

.file-detail {
  min-height: 430px;
}

.file-detail-empty {
  min-height: 430px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  padding: 30px;
  color: var(--color-muted);
  text-align: center;
}

.file-detail-empty .icon {
  width: 30px;
  height: 30px;
  margin-bottom: 4px;
}

.file-detail-empty strong {
  color: var(--color-charcoal);
  font-size: var(--font-size-body);
}

.file-detail-empty span {
  max-width: 220px;
  font-size: var(--font-size-small);
  line-height: 1.6;
}

.file-detail-empty .skeleton {
  width: min(320px, 76%);
  height: 22px;
}

.file-detail-empty .skeleton + .skeleton {
  height: 150px;
  margin-top: 12px;
}

.file-detail-content {
  padding: 72px 28px 28px;
}

.file-detail-title {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-hairline);
}

.file-detail-title h2 {
  overflow-wrap: anywhere;
  font-size: var(--font-size-card);
  line-height: 1.45;
}

.file-detail-title p {
  margin-top: 4px;
  color: var(--color-secondary);
  font-size: var(--font-size-small);
}

.file-detail-meta {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 10px 12px;
  margin: 20px 0;
  font-size: var(--font-size-small);
}

.file-detail-meta dt {
  color: var(--color-muted);
}

.file-detail-meta dd {
  overflow-wrap: anywhere;
  color: var(--color-charcoal);
}

.file-description {
  min-height: 88px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--color-surface-subtle);
  color: var(--color-secondary);
  font-size: var(--font-size-small);
  line-height: 1.7;
}

.file-preview {
  max-height: 150px;
  margin-top: 16px;
  overflow: hidden;
  color: var(--color-charcoal);
  font-size: var(--font-size-small);
  line-height: 1.7;
  mask-image: linear-gradient(#000 62%, transparent);
}

.file-detail-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 22px;
}

.file-detail-actions .button {
  padding-inline: 12px;
}

.recent-files {
  margin-top: 22px;
}

.recent-files-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px 12px;
}

.recent-files-heading h2 {
  font-size: var(--font-size-body);
}

.recent-files-heading span {
  color: var(--color-muted);
  font-size: var(--font-size-caption);
}

.recent-row {
  width: 100%;
  min-height: 52px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 48%);
  align-items: center;
  gap: 16px;
  padding: 8px 20px;
  border-top: 1px solid var(--color-hairline);
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  text-align: left;
  font: inherit;
}

.recent-row:hover {
  background: var(--color-surface-subtle);
}

.recent-row span,
.recent-row time {
  overflow: hidden;
  font-size: var(--font-size-small);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recent-file-name {
  font-weight: 600;
}

.recent-file-meta {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  align-items: center;
  justify-items: stretch;
  gap: 16px;
}

.recent-file-meta > * {
  color: var(--color-secondary);
  text-align: right;
}

.files-loading {
  padding: 14px 20px;
}

.files-loading .skeleton {
  display: block;
  height: 42px;
  margin: 7px 0;
}

.files-empty {
  padding: 54px 24px;
  color: var(--color-secondary);
  text-align: center;
}

.files-empty strong {
  display: block;
  margin-bottom: 5px;
  color: var(--color-ink);
}

.reader-dialog {
  width: min(1080px, calc(100vw - 40px));
  height: min(820px, calc(100vh - 40px));
  padding: 0;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  color: var(--color-ink);
  box-shadow: var(--shadow-md);
}

.reader-dialog::backdrop {
  background: rgba(13, 18, 16, 0.48);
  backdrop-filter: blur(3px);
}

.reader-shell {
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.reader-header {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 18px 12px 24px;
  border-bottom: 1px solid var(--color-hairline);
}

.reader-header > div:first-child {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.reader-header span {
  color: var(--color-muted);
  font-size: var(--font-size-caption);
  font-weight: 650;
  letter-spacing: 0.06em;
}

.reader-header strong {
  overflow: hidden;
  font-size: var(--font-size-body);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reader-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.reader-content {
  overflow: auto;
  padding: 42px max(24px, calc((100% - var(--reading-max)) / 2));
}

.reader-content > :first-child { margin-top: 0; }
.reader-content h1 { margin: 0 0 26px; font-size: var(--font-size-page); line-height: 1.3; }
.reader-content h2 { margin: 34px 0 14px; font-size: var(--font-size-section); line-height: 1.4; }
.reader-content h3 { margin: 26px 0 12px; font-size: var(--font-size-card); line-height: 1.45; }
.reader-content p,
.reader-content li { color: var(--color-charcoal); font-size: var(--font-size-body); line-height: 1.85; }
.reader-content p { margin: 14px 0; }
.reader-content ul,
.reader-content ol { padding-left: 24px; }
.reader-content a { color: var(--color-brand-deep); }
.reader-content img { max-width: 100%; height: auto; border-radius: var(--radius-md); }
.reader-content pre { overflow: auto; padding: 16px; border-radius: var(--radius-md); background: var(--color-surface-subtle); }
.reader-content code { font-family: var(--font-mono); }
.reader-content iframe { width: 100%; height: 100%; min-height: 640px; border: 0; }
.reader-content .reader-image { display: block; max-height: 100%; margin: 0 auto; object-fit: contain; }

@media (max-width: 980px) {
  .recent-row { grid-template-columns: minmax(0, 1fr) minmax(280px, 52%); }
}

@media (max-width: 720px) {
  .files-page { padding-top: 28px; }
  .files-intro p { font-size: var(--font-size-small); line-height: 1.6; }
  .files-search { width: 100%; margin-top: 20px; }
  .files-search kbd { display: none; }
  .file-table-head { display: none; }
  .file-row {
    min-height: 68px;
    grid-template-columns: minmax(0, 1fr) 18px;
    gap: 10px;
    padding: 10px 14px;
  }
  .file-row > span:not(.file-name-cell):not(.row-chevron) { display: none; }
  .file-name { white-space: normal; }
  .file-name-cell::after {
    content: attr(data-meta);
    position: absolute;
    left: 60px;
    bottom: 9px;
    color: var(--color-muted);
    font-size: var(--font-size-caption);
    font-weight: 450;
  }
  .file-detail-dialog {
    width: calc(100vw - 20px);
    max-height: calc(100dvh - 20px);
    border-radius: var(--radius-lg);
  }
  .file-detail-shell { max-height: calc(100dvh - 20px); }
  .file-detail-content { padding: 68px 20px 22px; }
  .file-detail-actions { grid-template-columns: 1fr; }
  .recent-row { grid-template-columns: minmax(0, 1fr) 108px; padding-inline: 14px; }
  .recent-file-meta { display: block; }
  .recent-file-path { display: none; }
  .reader-dialog { width: 100vw; height: 100dvh; max-width: none; max-height: none; border: 0; border-radius: 0; }
  .reader-header { padding: 10px 12px 10px 16px; }
  .reader-header .button { display: none; }
  .reader-content { padding: 28px 20px 84px; }
  .reader-content h1 { font-size: var(--font-size-page); }
  .reader-content p,
  .reader-content li { font-size: var(--font-size-body); }
}

.file-uploader { display:block; font-size: var(--font-size-caption); font-weight:400; color:var(--color-secondary); margin-top:4px; }
#upload-progress { width:100%; accent-color:var(--color-brand); }

@media (max-width:720px) {
  .file-name-cell { display:grid; grid-template-columns:34px minmax(0,1fr); column-gap:12px; row-gap:2px; }
  .file-name-cell .file-type-icon { grid-row:1 / 3; }
  .file-name-cell::after { position:static; grid-column:2; }
}