:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --ink: #1f1d1a;
  --ink-soft: #5a564d;
  --ink-dim: #8d8779;
  --accent: #b04a1a;
  --accent-soft: #f0d6c2;
  --line: #e3decf;
  --chip-bg: #eee6d6;
  --chip-ink: #5a3413;
  --err: #b03030;
  --ok: #2c7a40;
  --radius: 6px;
  font-family: "Georgia", "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

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

.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 14px 28px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 20px;
}

.env {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--ink-dim);
  text-transform: uppercase;
}

.app {
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 36px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 36px 28px;
}

@media (max-width: 880px) {
  .app {
    grid-template-columns: 1fr;
  }
}

.left h1 {
  font-size: 28px;
  margin: 0 0 12px 0;
  font-weight: 700;
  letter-spacing: -0.005em;
}

.lede {
  color: var(--ink-soft);
  line-height: 1.55;
  font-size: 15px;
}

.lede.dim {
  color: var(--ink-dim);
  font-size: 14px;
}

.lede code,
.lede em {
  background: var(--accent-soft);
  padding: 1px 5px;
  border-radius: 3px;
  font-style: normal;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  color: var(--chip-ink);
}

.coach {
  margin-top: 28px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.coach h2 {
  margin: 0 0 6px 0;
  font-size: 18px;
  font-weight: 700;
}

.coach-help {
  margin: 0 0 12px 0;
  font-size: 13px;
  color: var(--ink-dim);
  line-height: 1.5;
}

.coach-form textarea {
  width: 100%;
  font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  line-height: 1.5;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  resize: vertical;
  min-height: 84px;
}

.coach-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

.coach-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 8px;
}

.coach-row button {
  font: inherit;
  font-weight: 700;
  font-size: 13px;
  background: var(--ink);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 7px 14px;
  cursor: pointer;
}

.coach-row button:disabled {
  background: var(--ink-dim);
  cursor: progress;
}

.coach-count {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--ink-dim);
  letter-spacing: 0.02em;
}

.coach-count.coach-err {
  color: var(--err);
}

.coach-list {
  list-style: none;
  margin: 14px 0 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 280px;
  overflow-y: auto;
}

.coach-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 8px 10px;
}

.coach-ts {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--ink-dim);
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}

.coach-body {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
}

.coach-empty {
  font-size: 13px;
  color: var(--ink-dim);
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
}

.diag {
  margin-top: 22px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  font-size: 13px;
  color: var(--ink-dim);
}
.diag summary {
  cursor: pointer;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.diag pre {
  margin-top: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 10px;
  border-radius: var(--radius);
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--ink-soft);
}

.chat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  height: calc(100vh - 140px);
  min-height: 520px;
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.02);
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 700;
}

.chat-header .dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(44, 122, 64, 0.18);
}

.chat-header .hours {
  margin-left: auto;
  font-weight: 400;
  font-size: 12px;
  color: var(--ink-dim);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 22px 18px 8px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.msg {
  max-width: 92%;
  font-size: 15px;
  line-height: 1.5;
}

.msg.user {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
  border-radius: 14px 14px 4px 14px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.msg.assistant {
  align-self: flex-start;
  color: var(--ink);
}

.msg.assistant .body {
  white-space: pre-wrap;
}

.msg.assistant .body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  word-break: break-word;
}

.msg.assistant .body a:hover {
  background: var(--accent-soft);
  text-decoration-thickness: 2px;
}

.msg.assistant .body strong {
  font-weight: 700;
  color: var(--ink);
}

.coach-reply-btn {
  font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-dim);
  padding: 3px 8px;
  border-radius: 999px;
  margin-top: 8px;
  cursor: pointer;
  opacity: 0.4;
  transition: opacity 0.15s, color 0.15s, border-color 0.15s, background 0.15s;
}

.msg.assistant:hover .coach-reply-btn,
.coach-reply-btn:focus-visible {
  opacity: 1;
}

.coach-reply-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
  opacity: 1;
}

.coach-reply-panel {
  margin-top: 8px;
  padding: 10px;
  border: 1px solid var(--accent);
  border-left-width: 3px;
  border-radius: var(--radius);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.coach-reply-panel[hidden] {
  display: none;
}

.coach-reply-textarea {
  font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  line-height: 1.5;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
  resize: vertical;
}

.coach-reply-textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

.coach-reply-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.coach-reply-save,
.coach-reply-cancel {
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius);
  padding: 6px 12px;
  cursor: pointer;
}

.coach-reply-save {
  background: var(--ink);
  color: #fff;
  border: none;
}

.coach-reply-save:disabled {
  background: var(--ink-dim);
  cursor: progress;
}

.coach-reply-cancel {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}

.coach-reply-status {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--ink-dim);
  letter-spacing: 0.02em;
}

.coach-reply-status.err {
  color: var(--err);
}

.msg.assistant .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 4px 0 8px 0;
}

.chip {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  background: var(--chip-bg);
  color: var(--chip-ink);
  border: 1px solid #d6c9ad;
  padding: 3px 7px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.chip.error {
  background: #f7e0e0;
  color: var(--err);
  border-color: #f0bcbc;
}
.chip.ok {
  background: #dff0e3;
  color: var(--ok);
  border-color: #b9dcc0;
}

.chip .spinner {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: 1.5px solid currentColor;
  border-top-color: transparent;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 14px 14px;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.composer textarea {
  flex: 1;
  font: inherit;
  font-size: 15px;
  line-height: 1.4;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
  resize: none;
  min-height: 40px;
  max-height: 160px;
  overflow-y: auto;
  font-family: inherit;
}

.composer textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

.composer button {
  font: inherit;
  font-weight: 700;
  background: var(--ink);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 0 18px;
  height: 40px;
  cursor: pointer;
}

.composer button:disabled {
  background: var(--ink-dim);
  cursor: progress;
}

.greeting {
  align-self: flex-start;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
  padding: 4px 0;
}

.greeting strong {
  color: var(--ink);
}

.suggestion-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.suggestion {
  font: inherit;
  font-size: 13px;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 5px 10px;
  border-radius: 999px;
  cursor: pointer;
}
.suggestion:hover {
  background: var(--accent-soft);
}