:root {
  color-scheme: light dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --background: #f3f5f8;
  --surface: #ffffff;
  --text: #18202a;
  --muted: #647184;
  --border: #dce2ea;
  --accent: #2667d8;
  --accent-hover: #1854bd;
  --good: #177245;
  --good-bg: #e4f5ec;
  --bad: #a52a2a;
  --bad-bg: #fdeaea;
  --pending: #695619;
  --pending-bg: #fff4cc;
  --message: #edf2f8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--text);
}

.page-header, .api-key-card, .tabs, main {
  width: min(100% - 32px, 1040px);
  margin-inline: auto;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 24px 12px;
}

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 4px; font-size: clamp(1.75rem, 5vw, 2.4rem); }
h2 { margin-bottom: 0; font-size: 1.05rem; }
.eyebrow { margin-bottom: 4px; color: var(--accent); font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.subtitle, .muted { color: var(--muted); }
.subtitle { margin-bottom: 0; }

main { padding-bottom: 40px; }
.status-grid, .content-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-bottom: 16px; }
.card { padding: 20px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); box-shadow: 0 5px 18px rgb(22 34 52 / 5%); margin-bottom: 16px; }
.card-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.card-heading p { margin: 4px 0 0; font-size: .9rem; }
.status-card p { margin-bottom: 0; }

.indicator, .count { flex: none; border-radius: 999px; padding: 4px 9px; font-size: .78rem; font-weight: 700; }
.indicator.pending { color: var(--pending); background: var(--pending-bg); }
.indicator.good { color: var(--good); background: var(--good-bg); }
.indicator.bad { color: var(--bad); background: var(--bad-bg); }
.count { background: var(--message); color: var(--muted); }

button { min-height: 44px; padding: 10px 16px; border: 0; border-radius: 10px; background: var(--accent); color: white; font: inherit; font-weight: 700; cursor: pointer; }
button:hover:not(:disabled) { background: var(--accent-hover); }
button:disabled { opacity: .55; cursor: not-allowed; }
button.secondary { border: 1px solid var(--border); background: var(--surface); color: var(--text); }

.item-list { margin: 0; padding: 0; list-style: none; }
.item-list li { padding: 11px 0; border-top: 1px solid var(--border); }
.item-list li:first-child { padding-top: 0; border-top: 0; }
.item-title { margin-bottom: 3px; font-weight: 650; overflow-wrap: anywhere; }
.item-meta { color: var(--muted); font-size: .8rem; margin-top: 2px; overflow-wrap: anywhere; }
.list-state { color: var(--muted); }
.error-text { color: var(--bad); }

.card-actions { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 8px; }
.row-actions { margin-bottom: 12px; display: flex; gap: 8px; }

.detail-list { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
.detail-list dt { color: var(--muted); font-weight: 600; }
.detail-list dd { margin: 0; overflow-wrap: anywhere; }
.selectable-id { font-family: ui-monospace, monospace; }
.inline-copy-button { min-height: 28px; margin-left: 8px; padding: 4px 10px; font-size: .78rem; font-weight: 600; vertical-align: middle; }
.inline-copy-status { margin-left: 8px; color: var(--muted); font-size: .8rem; }

.chat-card { margin-top: 0; }

.operations-form {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 10px;
  align-items: center;
}
.operations-form input,
.operations-form select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}
.operations-output {
  margin: 0;
  padding: 14px;
  border-radius: 12px;
  background: var(--message);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: ui-monospace, monospace;
  font-size: .82rem;
}
/* Chain Editor */
.chain-editor-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.chain-steps-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}
.chain-step-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: var(--surface);
}
.chain-step-header {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.chain-step-header label { font-size: .8rem; color: var(--muted); }
.chain-step-header input, .chain-step-header select {
  flex: 1;
  min-width: 80px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
  color: var(--text);
  font: inherit;
  font-size: .85rem;
}
.chain-step-remove {
  padding: 4px 10px;
  font-size: .8rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  flex-shrink: 0;
}
.chain-step-remove:hover { color: var(--bad); border-color: var(--bad); }
.chain-step-args {
  font-size: .82rem;
  color: var(--muted);
  margin-top: 4px;
}
.chain-step-args input {
  width: 100%;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--background);
  color: var(--text);
  font: inherit;
  font-size: .82rem;
  margin-top: 2px;
  box-sizing: border-box;
}
.chain-step-move {
  display: flex;
  gap: 4px;
}
.chain-step-move button {
  padding: 2px 8px;
  font-size: .8rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
}
.chain-step-move button:hover { color: var(--text); }
.chain-editor-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.chain-run-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.chain-result-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.chain-result-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.chain-result-step {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.chain-result-step-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  cursor: pointer;
  user-select: none;
  gap: 8px;
  flex-wrap: wrap;
}
.chain-result-step-header:hover { background: var(--surface); }
.chain-result-step-title { font-weight: 500; font-size: .9rem; }
.chain-result-step-meta { font-size: .8rem; color: var(--muted); }
.chain-result-step-body {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  font-family: ui-monospace, monospace;
  font-size: .8rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: var(--message);
}
.chain-result-step[aria-expanded="false"] .chain-result-step-body { display: none; }
.chain-result-step[aria-expanded="true"] .chain-result-step-body { display: block; }
.step-status-success { color: var(--good); }
.step-status-failed { color: var(--bad); }
.step-status-skipped { color: var(--muted); }

.adoption-box {
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.adoption-box h3 {
  margin: 0 0 10px;
  font-size: .98rem;
}
.messages { min-height: 150px; max-height: 360px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; padding: 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--background); }
.message { max-width: 82%; padding: 10px 12px; border-radius: 12px; white-space: pre-wrap; overflow-wrap: anywhere; }
.message.user { align-self: flex-end; background: var(--accent); color: white; }
.message.agent { align-self: flex-start; background: var(--message); }
.message.error { align-self: flex-start; color: var(--bad); background: var(--bad-bg); }
.chat-form { display: flex; align-items: stretch; gap: 10px; }
.idea-form { display: flex; flex-wrap: wrap; align-items: stretch; gap: 8px; margin-top: 12px; }
.idea-form input[type="text"] { flex: 1 1 160px; }
.idea-form input { padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); color: var(--text); font: inherit; }
#idea-state { flex-basis: 100%; }
textarea { width: 100%; min-height: 48px; resize: vertical; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); color: var(--text); font: inherit; }
textarea:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 35%, transparent);
  outline-offset: 2px;
}
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* ------------------------------------------------------------------ */
/* Central API-key box                                                 */
/* ------------------------------------------------------------------ */

.api-key-card { margin-bottom: 8px; }
.api-key-form { display: flex; flex-wrap: wrap; gap: 8px; }
.api-key-form input { flex: 1 1 200px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); color: var(--text); font: inherit; }
.api-key-hint { margin: 10px 0 0; font-size: .8rem; }

/* ------------------------------------------------------------------ */
/* Tab navigation                                                      */
/* ------------------------------------------------------------------ */

.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.tab-button {
  flex: none;
  background: transparent;
  color: var(--muted);
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 650;
  white-space: nowrap;
}
.tab-button:hover:not(:disabled) { background: var(--message); color: var(--text); }
.tab-button.active { background: var(--accent); color: white; }
.tab-panel-heading { display: flex; justify-content: flex-end; margin-bottom: 12px; }

/* ------------------------------------------------------------------ */
/* Logs tab                                                             */
/* ------------------------------------------------------------------ */

.logs-filters { display: grid; grid-template-columns: max-content 1fr; align-items: center; gap: 10px; margin-bottom: 8px; }
.logs-filters label { color: var(--muted); font-size: .85rem; }
.logs-filters select, .logs-filters input {
  padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--surface); color: var(--text); font: inherit; width: 100%;
}
.logs-status {
  display: flex; flex-wrap: wrap; gap: 4px 18px; color: var(--muted);
  font-size: .85rem; overflow-wrap: anywhere;
}
.logs-status strong { color: var(--text); }

.log-entry { padding: 10px 0; border-top: 1px solid var(--border); }
.log-entry:first-child { padding-top: 0; border-top: 0; }
.log-entry-head {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  cursor: pointer; background: none; border: none; padding: 0; width: 100%;
  text-align: left; font: inherit; color: inherit;
}
.log-level {
  flex: none; border-radius: 999px; padding: 2px 9px; font-size: .72rem;
  font-weight: 700; letter-spacing: .02em; text-transform: uppercase;
}
.log-level-debug { color: #4b5768; background: #e7ebf0; }
.log-level-info { color: var(--good); background: var(--good-bg); }
.log-level-warning { color: var(--pending); background: var(--pending-bg); }
.log-level-error { color: var(--bad); background: var(--bad-bg); }
.log-entry-time { color: var(--muted); font-size: .78rem; white-space: nowrap; }
.log-entry-phase { color: var(--accent); font-size: .8rem; font-weight: 600; }
.log-entry-message { flex: 1 1 100%; overflow-wrap: anywhere; font-size: .92rem; }
.log-entry-toggle { margin-left: auto; color: var(--muted); font-size: .8rem; flex: none; }
.log-entry-details {
  margin-top: 8px; padding: 10px 12px; border-radius: 10px; background: var(--message);
  font-size: .82rem;
}
.log-entry-details dl { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 4px 10px; }
.log-entry-details dt { color: var(--muted); }
.log-entry-details dd { margin: 0; overflow-wrap: anywhere; white-space: pre-wrap; font-family: ui-monospace, monospace; }
.log-entry-details[hidden] { display: none; }
.log-entry-truncated { color: var(--pending); font-size: .75rem; margin-top: 4px; }

@media (max-width: 640px) {
  .page-header, .api-key-card, .tabs, main { width: min(100% - 24px, 1040px); }
  .page-header { align-items: flex-end; padding-top: 16px; }
  .status-grid, .content-grid { grid-template-columns: 1fr; }
  .card { padding: 16px; border-radius: 13px; }
  .chat-form { flex-direction: column; }
  .chat-form button { width: 100%; }
  .message { max-width: 92%; }
  .card-actions { flex-direction: column; }
  .card-actions button { width: 100%; }
  .logs-filters { grid-template-columns: 1fr; }
  .logs-status { align-items: flex-start; flex-direction: column; gap: 4px; }
  .detail-list { grid-template-columns: 1fr; }
  .operations-form { grid-template-columns: 1fr; }
  .chain-step-header { flex-direction: column; align-items: stretch; }
  .chain-run-row { flex-direction: column; align-items: stretch; }
  .chain-run-row button { width: 100%; }
  .detail-list dd { margin-bottom: 4px; }
  .api-key-form { flex-direction: column; }
  .api-key-form button, .api-key-form input { width: 100%; }
  .log-entry-details dl { grid-template-columns: 1fr; }
  .log-entry-details dt { margin-top: 6px; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #10151c;
    --surface: #19212b;
    --text: #edf2f7;
    --muted: #9ba9b9;
    --border: #303c49;
    --accent: #4f8ee8;
    --accent-hover: #72a6ee;
    --good: #89d6ae;
    --good-bg: #173c2b;
    --bad: #ffadad;
    --bad-bg: #462323;
    --pending: #eed682;
    --pending-bg: #3e3619;
    --message: #26313e;
  }
  .log-level-debug { color: #c4cbd4; background: #2b323c; }
}