:root {
  --bg: #0f1115; --panel: #171a21; --panel2: #1f2330; --text: #e8eaf0; --muted: #8b93a7;
  --accent: #4f8cff; --accent2: #2f6fe0; --ok: #3ccf7a; --warn: #f0b429; --err: #ff5d5d; --border: #2a2f3d;
  --radius: 14px; --safe-b: env(safe-area-inset-bottom, 0px); --safe-t: env(safe-area-inset-top, 0px);
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f4f5f8; --panel: #ffffff; --panel2: #eef0f5; --text: #1b1f2a; --muted: #5f6675; --border: #dfe3ea; }
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; -webkit-text-size-adjust: 100%; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 0.9em; }
.error { color: var(--err); }
.info { background: var(--panel2); padding: 10px 12px; border-radius: 10px; font-size: 0.95em; }
button, input, select, textarea { font: inherit; color: inherit; }
button { border: 1px solid var(--border); background: var(--panel2); border-radius: 10px; padding: 9px 14px; cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.ghost { background: transparent; }
button.round { width: 44px; height: 44px; padding: 0; border-radius: 50%; font-size: 18px; flex: none; }
button:disabled { opacity: 0.5; cursor: default; }
button.rec { background: var(--err); border-color: var(--err); color: #fff; animation: pulse 1s infinite; }
@keyframes pulse { 50% { transform: scale(1.08); } }
input, select, textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel); }
label { display: block; margin: 10px 0; font-size: 0.95em; }
label input { margin-top: 4px; }
code { background: var(--panel2); padding: 2px 6px; border-radius: 6px; font-size: 0.9em; word-break: break-all; }
a { color: var(--accent); }

.screen { min-height: 100%; }
.auth-card { max-width: 420px; margin: 8vh auto; padding: 28px 22px; background: var(--panel); border-radius: 18px; border: 1px solid var(--border); }
.auth-card h1 { margin: 6px 0 2px; }
.auth-card form button { width: 100%; margin-top: 8px; }
.logo { width: 56px; height: 56px; border-radius: 16px; background: var(--accent); color: #fff; font-weight: 700; display: grid; place-items: center; font-size: 22px; }

.topbar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 10px; padding: calc(10px + var(--safe-t)) 16px 10px;
  background: var(--bg); border-bottom: 1px solid var(--border); }
.brand { font-weight: 700; }
.dot { margin-left: auto; width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.dot.ok { background: var(--ok); } .dot.bad { background: var(--err); }

main { max-width: 900px; margin: 0 auto; padding: 12px 12px calc(76px + var(--safe-b)); }
.tab { display: flex; flex-direction: column; gap: 12px; }

.tabbar { position: fixed; bottom: 0; left: 0; right: 0; display: flex; background: var(--panel); border-top: 1px solid var(--border);
  padding-bottom: var(--safe-b); z-index: 5; }
.tabbar a { flex: 1; text-align: center; padding: 8px 4px 6px; font-size: 11px; color: var(--muted); text-decoration: none; }
.tabbar a span { display: block; font-size: 20px; }
.tabbar a.active { color: var(--accent); }

/* Chat */
#tab-chat { height: calc(100vh - 62px - 76px - var(--safe-b) - var(--safe-t)); min-height: 400px; }
.chat-head { display: flex; gap: 8px; }
.chat-head select { flex: 1; }
.messages { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; padding: 4px 2px; }
.hint { color: var(--muted); text-align: center; margin: auto; padding: 20px; }
.msg { max-width: 88%; padding: 10px 14px; border-radius: 16px; white-space: pre-wrap; word-break: break-word; }
.msg.user { align-self: flex-end; background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: var(--panel); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.msg.tool { align-self: flex-start; font-size: 0.85em; color: var(--muted); padding: 2px 10px; }
.msg.error { align-self: center; color: var(--err); }
.composer { display: flex; gap: 8px; align-items: flex-end; }
.composer textarea { flex: 1; resize: none; max-height: 140px; border-radius: 22px; padding: 11px 14px; }

/* Upload */
.dropzone { display: block; text-align: center; padding: 34px 16px; border: 2px dashed var(--border); border-radius: var(--radius); background: var(--panel); cursor: pointer; }
.dropzone .big { font-size: 40px; }
.cards { display: flex; flex-direction: column; gap: 10px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.card h3 { margin: 0 0 8px; font-size: 1.05em; }
.card .title { font-weight: 600; }
.card .meta { color: var(--muted); font-size: 0.9em; margin-top: 2px; }
.card.clickable { cursor: pointer; }
.card.clickable:hover { border-color: var(--accent); }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.78em; background: var(--panel2); margin-right: 4px; }
.badge.warn { background: var(--warn); color: #000; }
.badge.err { background: var(--err); color: #fff; }
.badge.ok { background: var(--ok); color: #000; }
.progress { height: 6px; background: var(--panel2); border-radius: 3px; overflow: hidden; margin-top: 8px; }
.progress i { display: block; height: 100%; width: 40%; background: var(--accent); animation: slide 1.2s infinite; }
@keyframes slide { 0% { margin-left: -40%; } 100% { margin-left: 100%; } }

/* Archiv */
.searchbar input { border-radius: 22px; }
.chips { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; }
.chip { flex: none; padding: 6px 12px; border-radius: 999px; background: var(--panel2); border: 1px solid var(--border); font-size: 0.9em; cursor: pointer; white-space: nowrap; }
.chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.detail { position: fixed; inset: 0; background: var(--bg); z-index: 20; overflow-y: auto; padding: calc(12px + var(--safe-t)) 14px calc(20px + var(--safe-b)); }
.detail .bar { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; }
.detail .bar h2 { font-size: 1.1em; margin: 0; flex: 1; }
.detail pre { white-space: pre-wrap; font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--panel); padding: 12px; border-radius: 10px; max-height: 40vh; overflow: auto; }
.kv { display: grid; grid-template-columns: 110px 1fr; gap: 4px 10px; font-size: 0.95em; margin: 10px 0; }
.kv b { color: var(--muted); font-weight: 500; }

/* Rows */
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row input { flex: 1; min-width: 140px; }
.switch { display: flex; align-items: center; gap: 10px; }
.switch input { width: auto; }
.token { flex: 1; }
details summary { cursor: pointer; margin: 8px 0; }
.user-row { display: flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.user-row .grow { flex: 1; }

.toast { position: fixed; left: 50%; bottom: calc(90px + var(--safe-b)); transform: translateX(-50%); background: var(--panel2); border: 1px solid var(--border);
  padding: 10px 16px; border-radius: 12px; z-index: 50; max-width: 90vw; box-shadow: 0 6px 24px rgba(0,0,0,.3); }