*, *::before, *::after { box-sizing: border-box; }
:root { --fg: #1d1d1f; --mute: #6e6e73; --line: #e3e3e6; --bg: #fff; --tint: #f4f4f6; --accent: #2a62d6; }
@media (prefers-color-scheme: dark) {
  :root { --fg: #ececf0; --mute: #9a9aa2; --line: #33333a; --bg: #161618; --tint: #202024; --accent: #7aa2ff; }
}
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.45 system-ui, sans-serif; color: var(--fg); background: var(--bg); overflow-x: hidden; }
a { color: var(--accent); text-decoration: none; }
button { font: inherit; color: inherit; background: var(--tint); border: 1px solid var(--line); border-radius: 6px;
         padding: 4px 10px; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; background: var(--bg); border: 1px solid var(--line);
                          border-radius: 6px; padding: 6px 8px; max-width: 100%; }

#bar { position: sticky; top: 0; z-index: 3; display: flex; align-items: center; gap: 12px; padding: 8px 16px;
       background: var(--bg); border-bottom: 1px solid var(--line); }
#brand { font-weight: 700; color: var(--fg); margin-right: auto; }

#side { position: fixed; z-index: 2; top: 49px; bottom: 0; left: 0; width: min(300px, 85vw); padding: 16px;
        overflow-y: auto; background: var(--bg); border-right: 1px solid var(--line);
        transform: translateX(-100%); transition: transform .2s; }
body.drawer #side { transform: none; }
#filters { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
#filters .on { border-color: var(--accent); color: var(--accent); }
#search { flex: 1 1 100%; }
#list { list-style: none; margin: 12px 0 0; padding: 0; }
#list li a { display: block; padding: 6px 8px; border-radius: 6px; color: var(--fg); overflow-wrap: anywhere; }
#list li.on a { background: var(--tint); font-weight: 600; }

main { padding: 0 16px; max-width: 760px; }
.crumbs { margin: 16px 0 8px; overflow-wrap: anywhere; }
.meta { display: grid; gap: 6px; }
.meta summary { cursor: pointer; color: var(--mute); font-size: 14px; }
.summary { margin: 0 0 8px; }
.meta label { display: grid; font-size: 13px; color: var(--mute); }
.meta input { width: 100%; color: var(--fg); }
.members, .actions, .forks { font-size: 14px; color: var(--mute); overflow-wrap: anywhere; }
.actions:empty { display: none; }
.actions button + button { margin-left: 6px; }

#messages { list-style: none; margin: 16px 0; padding: 0; border-top: 1px solid var(--line); }
#messages li { padding: 10px 0; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
#messages li:target { background: var(--tint); }
.note { font-size: 13px; color: var(--mute); }
.who { font-weight: 600; }
.face { width: 20px; height: 20px; border-radius: 50%; object-fit: cover; vertical-align: -4px; margin-right: 6px; }
h2 .face { width: 32px; height: 32px; vertical-align: -6px; }
.when { font-size: 12px; color: var(--mute); }
.text { white-space: pre-wrap; margin: 2px 0 4px; }
.posts li { margin: 4px 0; overflow-wrap: anywhere; }
.chips, .msg .forks { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0; font-size: 13px; }
.chip, .fork { padding: 1px 8px; border: 1px solid var(--line); border-radius: 999px; }
.acts button { font-size: 12px; padding: 1px 8px; color: var(--mute); }
.acts button + button { margin-left: 4px; }

#banner, #composer { position: sticky; bottom: 0; padding: 10px 0 16px; background: var(--bg); }
#banner p { margin: 0 0 8px; padding: 8px 10px; border-radius: 6px; background: var(--tint); }
#composer { display: flex; gap: 8px; align-items: flex-end; }
#composer[hidden], #banner[hidden] { display: none; }
#composer textarea { flex: 1; resize: vertical; min-width: 0; }

dialog { border: 1px solid var(--line); border-radius: 10px; color: var(--fg); background: var(--bg);
         width: min(420px, calc(100vw - 32px)); }
dialog h2 { margin-top: 0; font-size: 18px; }
dialog label { display: block; margin: 8px 0; }
dialog input:not([type=radio]), dialog textarea { width: 100%; }
dialog menu { display: flex; justify-content: flex-end; gap: 8px; padding: 0; margin: 16px 0 0; }
dialog menu form { margin: 0; }
#profile .me { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; overflow-wrap: anywhere; }
#profile .me .face { width: 32px; height: 32px; margin: 0; }
#qr { display: flex; justify-content: center; margin: 12px 0; }
#qr img, #qr canvas { background: #fff; padding: 8px; }

@media (min-width: 860px) {
  #menu { display: none; }
  #side { transform: none; }
  main { margin-left: 300px; padding: 0 24px; }
}