:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --border: #e2e5ea;
  --text: #16181d;
  --muted: #667085;
  --accent: #4f46e5;
  --accent-soft: #eef0ff;
  --danger: #d92d20;
  --danger-soft: #fef0ef;
  --success: #067647;
  --success-soft: #e8f7ef;
  --warn: #b54708;
  --warn-soft: #fff6e6;
  --sidebar: #111318;
  --sidebar-text: #c9ccd3;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1014;
    --surface: #171a20;
    --surface-2: #1f232b;
    --border: #2a2f38;
    --text: #e8eaee;
    --muted: #9098a6;
    --accent: #8b85ff;
    --accent-soft: #24233d;
    --danger: #ff6b5f;
    --danger-soft: #3a1c1a;
    --success: #4fd18b;
    --success-soft: #16301f;
    --warn: #f5b454;
    --warn-soft: #362914;
    --sidebar: #0a0b0e;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: var(--mono); font-size: 12.5px; }
h1 { font-size: 22px; margin: 0; font-weight: 650; letter-spacing: -0.01em; }
h2 { font-size: 15px; margin: 0 0 14px; font-weight: 600; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.text-danger { color: var(--danger); }

/* ---- layout ---- */
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--sidebar);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; color: #fff; padding: 0 8px 22px; }
.brand-lg { color: var(--text); font-size: 20px; padding: 0 0 4px; }
.brand-mark {
  width: 22px; height: 22px; border-radius: 6px;
  background: linear-gradient(135deg, #6366f1, #22d3ee);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a { color: var(--sidebar-text); padding: 8px 10px; border-radius: 8px; font-weight: 500; }
.nav a:hover { background: rgba(255, 255, 255, 0.06); text-decoration: none; color: #fff; }
.nav a.active { background: rgba(255, 255, 255, 0.1); color: #fff; }
.sidebar-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 0 6px; }
.view { padding: 28px 32px 60px; max-width: 1280px; width: 100%; min-width: 0; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head p { margin: 4px 0 0; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.back { display: inline-block; margin-bottom: 10px; color: var(--muted); }
.loading { color: var(--muted); padding: 40px 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 18px;
  overflow-x: auto;
}
.card.narrow { max-width: 480px; }
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.card-head h2 { margin: 0; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---- stats ---- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.stat-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.stat-value { font-size: 26px; font-weight: 650; margin-top: 4px; font-variant-numeric: tabular-nums; }
.stat-sub { color: var(--muted); font-size: 12px; }
.meter-wrap { display: flex; align-items: center; gap: 8px; min-width: 160px; }
.meter { flex: 1; height: 6px; background: var(--surface-2); border-radius: 99px; overflow: hidden; }
.meter span { display: block; height: 100%; background: var(--accent); border-radius: 99px; transition: width 0.3s; }
.meter-hot span { background: var(--danger); }

/* ---- table ---- */
.table { width: 100%; border-collapse: collapse; }
.table th {
  text-align: left; font-weight: 600; font-size: 12px; color: var(--muted);
  padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap;
}
.table td { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table-compact td { padding: 7px 10px; white-space: nowrap; }
.table tr.clickable { cursor: pointer; }
.table tr.clickable:hover td { background: var(--surface-2); }
.row-actions { display: flex; gap: 6px; justify-content: flex-end; white-space: nowrap; }
.truncate { display: inline-block; max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; vertical-align: bottom; }

/* ---- badges ---- */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: 12px; font-weight: 600;
  background: var(--surface-2); color: var(--muted);
}
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-error { background: var(--danger-soft); color: var(--danger); }
.badge-rejected { background: var(--warn-soft); color: var(--warn); }
.badge-running, .badge-queued { background: var(--accent-soft); color: var(--accent); }
.pill { display: inline-block; min-width: 24px; text-align: center; padding: 1px 8px; border-radius: 99px; background: var(--surface-2); font-weight: 600; }
.pill-warn { background: var(--warn-soft); color: var(--warn); }
.pill-small { font-size: 11px; margin-left: 6px; font-weight: 500; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: 7px 14px; border-radius: 8px; font: inherit; font-weight: 550; cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent); filter: brightness(1.08); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger); filter: brightness(1.08); }
.btn-danger-ghost { color: var(--danger); }
.btn-ghost { background: transparent; border-color: rgba(255, 255, 255, 0.15); color: var(--sidebar-text); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); }
.btn-small { padding: 4px 10px; font-size: 13px; }
.icon-btn { border: 0; background: none; font-size: 22px; line-height: 1; cursor: pointer; color: var(--muted); padding: 4px 8px; }

/* ---- forms ---- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.field { display: flex; flex-direction: column; gap: 5px; grid-column: span 2; }
.field.half { grid-column: span 1; }
.field label { font-weight: 550; font-size: 13px; }
.field-check { flex-direction: row; align-items: center; gap: 8px; flex-wrap: wrap; cursor: pointer; }
.field-check .hint { flex-basis: 100%; }
.field-check.inline { display: inline-flex; }
.hint { color: var(--muted); font-size: 12px; }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; width: 100%;
}
input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); }
textarea { resize: vertical; font-family: inherit; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.form-actions.start { justify-content: flex-start; margin-top: 12px; }
.form-error { color: var(--danger); margin-top: 10px; }
.form-error:empty { display: none; }
.filters { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; align-items: center; }
.filters select, .filters input[type="search"] { width: auto; min-width: 180px; }
.filters input[type="search"] { flex: 1; }
.pager { display: flex; align-items: center; gap: 8px; justify-content: flex-end; margin-top: 12px; }
.pager .muted { margin-right: auto; }

/* ---- modal ---- */
.modal {
  border: 1px solid var(--border); border-radius: 14px; padding: 0; width: min(560px, 94vw);
  background: var(--surface); color: var(--text); box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}
.modal-wide { width: min(780px, 94vw); }
.modal::backdrop { background: rgba(10, 12, 16, 0.5); }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-head h2 { margin: 0; }
.modal-body { padding: 18px 20px 20px; max-height: 75vh; overflow: auto; }
.model-list { columns: 2; padding-left: 18px; margin: 0; }

/* ---- key/value ---- */
.kv-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px 20px; }
.kv { display: flex; flex-direction: column; gap: 2px; }
.kv span { color: var(--muted); font-size: 12px; }
.kv strong { font-weight: 550; word-break: break-word; }
.secret-box { display: flex; gap: 10px; align-items: center; background: var(--surface-2); padding: 12px; border-radius: 8px; }
.secret-box code { flex: 1; word-break: break-all; }
.error-box { margin-top: 14px; background: var(--danger-soft); color: var(--danger); padding: 10px 12px; border-radius: 8px; font-family: var(--mono); font-size: 12.5px; white-space: pre-wrap; }

/* ---- code / snippets ---- */
.snippet { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin-top: 12px; min-width: 0; }
.two-col .snippet { margin-top: 0; }
.snippet-head { display: flex; justify-content: space-between; align-items: center; padding: 6px 10px; background: var(--surface-2); font-weight: 600; font-size: 12px; }
.snippet pre { margin: 0; padding: 12px; overflow: auto; max-height: 520px; }
pre.json { white-space: pre-wrap; word-break: break-word; }

/* ---- conversation ---- */
.conversation { display: flex; flex-direction: column; gap: 10px; }
.msg { border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; max-width: 85%; }
.msg-role { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); font-weight: 700; margin-bottom: 4px; }
.msg-text { white-space: pre-wrap; word-break: break-word; }
.msg-system { background: var(--surface-2); max-width: 100%; }
.msg-user { align-self: flex-end; background: var(--accent-soft); border-color: transparent; }
.msg-assistant { align-self: flex-start; }
.msg-tools { margin: 8px 0 0; font-size: 12px; background: var(--surface-2); padding: 8px; border-radius: 6px; overflow: auto; }
.msg-reasoning pre { white-space: pre-wrap; }

/* ---- playground ---- */
.pg-status { margin-top: 12px; font-size: 13px; }
.pg-output {
  margin: 10px 0 0; min-height: 80px; padding: 12px; border-radius: 8px; background: var(--surface-2);
  white-space: pre-wrap; word-break: break-word; font-family: inherit; font-size: 14px;
}
.pg-output:empty::before { content: 'Antwort erscheint hier …'; color: var(--muted); }
.pg-error { outline: 1px solid var(--danger); }

/* ---- empty, login, toasts ---- */
.empty { text-align: center; color: var(--muted); padding: 28px 10px; }
.empty p { margin: 0 0 12px; }
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(380px, 100%); background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 28px; }
.login-card .form-grid { grid-template-columns: 1fr; }
.login-card .form-actions .btn { width: 100%; justify-content: center; }
.toasts { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 1000; }
.toast { background: var(--text); color: var(--bg); padding: 10px 14px; border-radius: 8px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2); max-width: 380px; }
.toast-error { background: var(--danger); color: #fff; }

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; align-items: center; flex-wrap: wrap; gap: 8px; padding: 12px 16px; }
  .brand { padding: 0 8px 0 0; }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .sidebar-foot { margin: 0 0 0 auto; }
  .view { padding: 20px 16px 40px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .two-col, .form-grid { grid-template-columns: 1fr; }
  .field.half { grid-column: span 2; }
}