*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f0f13;
  --surface: #1a1a22;
  --border: #2a2a36;
  --accent: #7c6af7;
  --text: #e0e0e8;
  --muted: #6b6b80;
  --sidebar-w: 220px;
}

html, body, #root { height: 100%; }
body { background: var(--bg); color: var(--text); font-family: system-ui, sans-serif; font-size: 14px; }

button { cursor: pointer; background: var(--accent); color: #fff; border: none; border-radius: 4px; padding: 4px 10px; font-size: 13px; }
button:disabled { opacity: 0.4; cursor: default; }
input { background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 4px; padding: 6px 10px; font-size: 13px; outline: none; width: 100%; }
input:focus { border-color: var(--accent); }

/* ── onboarding ── */
.onboarding { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; gap: 12px; max-width: 380px; margin: 0 auto; padding: 2rem; }
.onboarding h1 { font-size: 2rem; letter-spacing: 0.1em; color: var(--accent); margin-bottom: 4px; }
.onboarding .status { color: var(--muted); font-size: 13px; }
.onboarding .status.connecting { color: var(--accent); }
.onboarding .status.disconnected { color: #e06060; }
.onboarding-identity { text-align: center; }
.onboarding-identity .alias { display: block; font-size: 1.1rem; font-weight: 600; }
.onboarding-identity .peer-id { display: block; color: var(--muted); font-size: 11px; margin-top: 2px; }
.onboarding-hint { color: var(--muted); font-size: 12px; text-align: center; }
.onboarding-hint.muted { color: var(--muted); }
.onboarding-code { background: var(--surface); border: 1px solid var(--border); border-radius: 4px; padding: 8px 12px; font-size: 12px; font-family: monospace; color: var(--text); width: 100%; text-align: left; }
.onboarding-section { width: 100%; border-top: 1px solid var(--border); padding-top: 12px; }
.join-form { display: flex; flex-direction: column; gap: 8px; width: 100%; }
.join-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
button.primary { background: var(--accent); width: 100%; padding: 8px; font-size: 14px; }
.toggle-link { background: none; color: var(--muted); font-size: 12px; padding: 4px 0; text-align: left; }
.toggle-link:hover { color: var(--text); }
.backup-panel { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.backup-form { display: flex; flex-direction: column; gap: 6px; }
.backup-form textarea { background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 4px; padding: 6px 8px; font-size: 11px; resize: vertical; width: 100%; }
.export-result { display: flex; flex-direction: column; gap: 6px; }
.export-result textarea { font-size: 10px; }
.mono { font-family: monospace; }
details summary { color: var(--muted); font-size: 12px; cursor: pointer; }

/* ── chat layout ── */
.chat-layout { display: grid; grid-template-columns: var(--sidebar-w) 1fr; height: 100%; }

/* ── sidebar ── */
.sidebar { background: var(--surface); border-right: 1px solid var(--border); display: flex; flex-direction: column; overflow-y: auto; }
.sidebar-identity { padding: 12px 12px 10px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 6px; }
.sidebar-identity .alias { display: block; font-weight: 600; font-size: 14px; }
.sidebar-identity .peer-id { display: block; color: var(--muted); font-size: 10px; font-family: monospace; margin-top: 2px; }
.sidebar-logout { background: none; color: var(--muted); font-size: 14px; padding: 2px 4px; flex-shrink: 0; margin-left: auto; }
.sidebar-logout:hover { color: #e06060; background: none; }
.sidebar-section { display: flex; flex-direction: column; padding: 8px 0; border-bottom: 1px solid var(--border); }
.sidebar-section:last-child { border-bottom: none; flex: 1; }
.sidebar-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); padding: 4px 12px 2px; }
.sidebar-label-row { display: flex; align-items: center; justify-content: space-between; padding-right: 8px; }
.sidebar-label-row .sidebar-label { padding-right: 0; }
.sidebar-add { background: none; color: var(--muted); font-size: 14px; padding: 0 4px; line-height: 1; }
.sidebar-add:hover { color: var(--accent); background: none; }
.sidebar-new-room { padding: 2px 8px 4px; }
.sidebar-new-room input { font-size: 12px; padding: 4px 8px; }
.sidebar-item { background: none; color: var(--text); text-align: left; padding: 5px 12px; border-radius: 0; width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.sidebar-item:hover { background: rgba(255,255,255,0.04); }
.sidebar-item.active { background: var(--accent); color: #fff; }
.sidebar-empty { font-size: 11px; color: var(--muted); padding: 4px 12px; }

/* peer rows in sidebar */
.sidebar-peers { gap: 0; }
.peer-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.peer-row { display: flex; align-items: center; gap: 6px; padding: 4px 12px; }
.peer-row-self { opacity: 0.7; }
.peer-row-you { font-size: 10px; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; margin-left: 2px; flex-shrink: 0; }
.peer-row:hover { background: rgba(255,255,255,0.04); }
.peer-row:hover .peer-row-actions { opacity: 1; }
.peer-row-alias { font-size: 13px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.peer-row-id { font-size: 10px; color: var(--muted); font-family: monospace; flex: 1; }
.peer-row-actions { opacity: 0; display: flex; gap: 2px; transition: opacity 0.1s; margin-left: auto; }
.peer-action { background: none; color: var(--muted); font-size: 14px; padding: 1px 3px; line-height: 1; }
.peer-action:hover { color: var(--accent); background: none; }

/* ── message pane ── */
.message-pane { display: flex; flex-direction: column; height: 100%; min-width: 0; }
.message-pane-header { padding: 10px 16px; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 13px; color: var(--text); }
.messages { flex: 1; overflow-y: auto; padding: 8px 0; display: flex; flex-direction: column; }
.message { display: flex; align-items: baseline; gap: 0; padding: 2px 16px; line-height: 1.5; }
.message:hover { background: rgba(255,255,255,0.02); }
.message-ts { color: var(--muted); font-size: 11px; white-space: nowrap; flex-shrink: 0; width: 72px; }
.message-alias { font-weight: 600; font-size: 13px; text-align: left; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex-shrink: 0; width: 90px; padding-right: 10px; }
.message.mine .message-alias { color: var(--accent); }
.message-text { word-break: break-word; font-size: 14px; color: var(--text); }
.compose { display: flex; gap: 8px; padding: 10px 16px; border-top: 1px solid var(--border); }
.compose input { flex: 1; width: auto; }
.compose button { flex-shrink: 0; }

/* ── transfers panel (in sidebar) ── */
.transfer-row { display: flex; flex-direction: column; gap: 3px; padding: 6px 12px; border-bottom: 1px solid var(--border); }
.transfer-row:last-child { border-bottom: none; }
.transfer-name { font-size: 12px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.transfer-meta { font-size: 10px; color: var(--muted); }
.transfer-actions { display: flex; gap: 4px; margin-top: 2px; }
.transfer-btn { font-size: 11px; padding: 2px 8px; }
.transfer-btn.accept { background: #3a7a3a; }
.transfer-btn.reject { background: #7a3a3a; }
.transfer-btn:hover { opacity: 0.85; }
.transfer-progress { height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; margin-top: 2px; }
.transfer-progress-bar { height: 100%; background: var(--accent); transition: width 0.1s; }

/* ── file browser panel ── */
.chat-layout.has-file-browser { grid-template-columns: var(--sidebar-w) 1fr 280px; }
.file-browser { display: flex; flex-direction: column; background: var(--surface); border-left: 1px solid var(--border); }
.file-browser-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.file-browser-title { font-size: 13px; font-weight: 600; }
.file-browser-close { background: none; color: var(--muted); font-size: 14px; padding: 2px 6px; }
.file-browser-close:hover { color: var(--text); background: none; }
.file-browser-empty { padding: 16px 12px; color: var(--muted); font-size: 13px; }
.file-list { list-style: none; padding: 4px 0; overflow-y: auto; flex: 1; }
.file-entry { display: flex; align-items: center; gap: 6px; padding: 5px 12px; }
.file-entry:hover { background: rgba(255,255,255,0.04); }
.file-entry-name { flex: 1; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-entry-size { color: var(--muted); font-size: 11px; flex-shrink: 0; }
.file-entry-dl { background: none; color: var(--accent); font-size: 14px; padding: 1px 4px; flex-shrink: 0; }
.file-entry-dl:hover { background: rgba(124,106,247,0.15); }

/* ── share manager ── */
.share-manager { width: 100%; display: flex; flex-direction: column; gap: 4px; }
.share-list { list-style: none; display: flex; flex-direction: column; gap: 2px; margin-bottom: 2px; }
.share-item { display: flex; align-items: center; gap: 4px; font-size: 12px; padding: 2px 0; }
.share-icon { flex-shrink: 0; font-size: 11px; }
.share-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }
.share-scope { font-size: 10px; color: var(--muted); flex-shrink: 0; }
.share-repick { background: none; color: var(--muted); font-size: 12px; padding: 0 3px; flex-shrink: 0; }
.share-repick:hover { color: var(--accent); background: none; }
.share-remove { background: none; color: var(--muted); font-size: 11px; padding: 0 3px; flex-shrink: 0; }
.share-remove:hover { color: #e06060; background: none; }

/* ── folder picker ── */
.folder-picker { width: 100%; display: flex; flex-direction: column; gap: 4px; }
.folder-picker-btn { background: var(--surface); color: var(--muted); border: 1px solid var(--border); font-size: 12px; padding: 5px 10px; border-radius: 4px; width: 100%; text-align: left; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.folder-picker-btn:hover { color: var(--text); border-color: var(--accent); background: var(--surface); }
.folder-picker-subfolders { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--muted); cursor: pointer; }
.folder-picker-subfolders input { width: auto; cursor: pointer; }

/* ── file browser toolbar / breadcrumb / sort ── */
.file-browser-toolbar { padding: 6px 8px 0; }
.file-browser-search { font-size: 12px; padding: 4px 8px; }
.file-browser-breadcrumb { display: flex; align-items: center; flex-wrap: wrap; padding: 4px 8px; gap: 0; font-size: 11px; color: var(--muted); border-bottom: 1px solid var(--border); }
.breadcrumb-seg { background: none; color: var(--muted); font-size: 11px; padding: 0 2px; }
.breadcrumb-seg:hover { color: var(--accent); background: none; }
.breadcrumb-sep { color: var(--border); padding: 0 1px; }
.file-browser-sortbar { display: flex; gap: 4px; padding: 4px 8px; border-bottom: 1px solid var(--border); }
.sort-btn { background: none; color: var(--muted); font-size: 11px; padding: 1px 6px; border-radius: 3px; }
.sort-btn:hover { background: rgba(255,255,255,0.05); color: var(--text); }
.sort-btn.active { color: var(--accent); background: none; }
.file-entry-dir { cursor: pointer; }
.file-entry-dir:hover { background: rgba(255,255,255,0.04); }
.file-entry-icon { font-size: 12px; flex-shrink: 0; }
.history-divider { display: flex; align-items: center; gap: 8px; margin: 10px 0 6px; color: var(--muted); font-size: 11px; }
.history-divider::before, .history-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }