:root { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #17212b; background: #f5f6f7; font-size: 100%; line-height: 1.5; }
* { box-sizing: border-box; }
body { margin: 0; padding: 32px; }
[hidden] { display: none !important; }
h1 { font-size: 1.75rem; line-height: 1.2; font-weight: 600; margin: 0 0 16px; }
h2 { font-size: 1.25rem; line-height: 1.2; font-weight: 600; margin: 0 0 16px; }
p { margin: 0 0 16px; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.2; margin: 0 0 16px; }
strong { font-weight: 600; }
body, dd, li, button { overflow-wrap: anywhere; }
button, input, a { font: inherit; }
button, input { min-height: 48px; border: 1px solid #66717f; border-radius: 4px; padding: 8px 16px; background: #fff; color: #17212b; max-width: 100%; }
button { font-weight: 600; cursor: pointer; }
button:disabled { cursor: wait; }
button.primary { background: #155e75; color: #fff; border-color: #155e75; }
label { display: block; margin-bottom: 4px; font-size: .875rem; font-weight: 600; }
:focus-visible, h2:focus { outline: 2px solid #155e75; outline-offset: 2px; }
a { color: #17212b; overflow-wrap: anywhere; }
.login-panel { max-width: 400px; margin: 64px auto 0; padding: 24px; background: #fff; border: 1px solid #d7dce1; }
.login-panel input, .login-panel button { width: 100%; margin-bottom: 16px; }
#archive { max-width: 1280px; margin: 0 auto; }
header { display: flex; justify-content: space-between; align-items: start; flex-wrap: wrap; gap: 24px; margin-bottom: 24px; }
.status-panel { padding: 24px; margin-bottom: 32px; background: #fff; border: 1px solid #d7dce1; }
dl { margin: 0 0 16px; } dt { font-size: .875rem; font-weight: 600; } dd { margin: 0 0 8px; }
.workspace { display: grid; grid-template-columns: 288px minmax(0, 1fr); gap: 32px; }
nav, #reader { min-width: 0; padding: 24px; background: #fff; border: 1px solid #d7dce1; overflow-wrap: anywhere; }
ul, ol { list-style: none; padding: 0; margin: 0; }
nav a, #back { display: block; min-height: 48px; padding: 8px 16px; border: 1px solid #66717f; margin-bottom: 8px; border-radius: 4px; text-decoration: none; }
nav a[aria-current] { border-left: 4px solid #155e75; }
nav a span { display: block; }
.meta { font-size: .875rem; color: #4b5563; }
article { padding: 16px 0; border-bottom: 1px solid #d7dce1; }
article p { white-space: pre-wrap; overflow-wrap: anywhere; max-width: 80ch; }
article header { display: block; margin-bottom: 8px; }
details { font-size: .875rem; margin-bottom: 8px; } summary { cursor: pointer; padding: 8px 0; }
summary { min-height: 48px; }
blockquote { margin: 16px 0; padding: 16px; border-left: 1px solid #66717f; white-space: pre-wrap; overflow-wrap: anywhere; }
.attachment { margin: 16px 0; padding: 16px; border: 1px solid #d7dce1; }
.attachment h3 { direction: inherit; white-space: pre-wrap; }
.preview { margin-top: 16px; }
.preview img, .preview audio, .preview video { display: block; width: 100%; max-width: 100%; margin-bottom: 16px; }
.preview img, .preview video { height: auto; }
.download { display: inline-block; min-height: 48px; padding: 8px 16px; border: 1px solid #155e75; border-radius: 4px; color: #155e75; font-weight: 600; }
#qr { width: 256px; height: auto; max-width: 100%; display: block; margin-bottom: 16px; image-rendering: pixelated; }
#pairing { margin-top: 24px; }
#coverage-batches li { margin-bottom: 8px; }
#refresh-conversation { margin-bottom: 16px; }
#conversation-tabs { position: sticky; top: 0; z-index: 1; background: #fff; display: flex; gap: 8px; max-width: 100%; max-height: 50vh; overflow-x: auto; margin-bottom: 16px; padding: 4px; }
#conversation-tabs > div { flex: 0 0 200px; max-width: 100%; }
[role=tab] { width: 100%; max-height: calc(50vh - 1.5em - 40px); overflow: auto; overscroll-behavior: contain; user-select: text; white-space: pre-wrap; }
[role=tab][aria-selected=true], [data-anchor=true] { border-left: 4px solid #155e75; }
[data-anchor=true] { padding-left: 16px; scroll-margin-top: calc(50vh + 16px); }
#search-panel { min-width: 0; padding: 24px; margin-bottom: 32px; background: #fff; border: 1px solid #d7dce1; overflow-wrap: anywhere; }
#search-form input { width: 100%; min-width: 0; margin-bottom: 16px; }
.search-actions, .search-dates { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.search-dates > div { flex: 1 1 200px; min-width: 0; }
#contact-candidates li { padding: 16px 0; border-bottom: 1px solid #d7dce1; }
#contact-selection { white-space: pre-wrap; }
.export-form { padding: 16px; margin: 24px 0; border: 1px solid #d7dce1; }
.export-form input { width: 100%; margin-bottom: 16px; min-width: 0; }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto; } }
.skip { position: absolute; left: 16px; top: 16px; padding: 8px 16px; background: #fff; transform: translateY(-200%); }
.skip:focus { transform: none; }
@media (max-width: 767px) {
  body { padding: 16px; }
  .login-panel { margin-top: 32px; padding: 24px; }
  .workspace { display: block; }
  #reader { display: none; }
  .reading #reader { display: block; }
  .reading #conversation-panel { display: none; }
  .reading #search-panel { display: none; }
  #search-panel { padding: 16px; }
  .status-panel { padding: 16px; margin-bottom: 24px; }
  nav, #reader { padding: 16px; }
}