:root {
  --bg: #eef1ec;
  --panel: #fbfaf6;
  --panel-strong: #ffffff;
  --ink: #1b221d;
  --muted: #667064;
  --line: #d7ddd2;
  --line-strong: #b9c3b1;
  --accent: #236b4e;
  --accent-ink: #f7fbf2;
  --warn: #a8691f;
  --shadow: 0 18px 48px rgba(31, 41, 34, .12);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Aptos, "Segoe UI", sans-serif;
}

button,
textarea {
  font: inherit;
}

button {
  border: 1px solid var(--line-strong);
  background: var(--panel-strong);
  color: var(--ink);
  border-radius: 8px;
  padding: .62rem .85rem;
}

button:hover,
button:focus-visible,
a:hover,
a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.workspace {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) 330px;
  gap: 1px;
  background: var(--line);
}

.rail,
.chat-pane,
.review-pane {
  background: var(--panel);
}

.rail {
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
}

.brand strong,
.brand span {
  display: block;
}

.brand span,
.capabilities li,
.chat-header p,
.review-pane p,
.job-card p {
  color: var(--muted);
}

.nav-stack {
  display: grid;
  gap: 6px;
}

.nav-pill {
  color: var(--ink);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 10px 12px;
}

.nav-pill.active {
  background: #e1e8df;
  border-color: var(--line-strong);
}

.capabilities h2,
.review-pane h2,
.job-card h2 {
  width: 100%;
  font-size: 1rem;
  margin: 0 0 12px;
}

.capabilities ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.capabilities li {
  display: flex;
  align-items: center;
  gap: 9px;
}

.status {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--warn);
}

.status.on,
.pulse {
  background: var(--accent);
}

.chat-pane {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.chat-header {
  min-height: 112px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 34px;
  border-bottom: 1px solid var(--line);
}

.chat-header h1 {
  width: 100%;
  margin: 0;
  font-size: clamp(2.1rem, 4vw, 4.4rem);
  line-height: .95;
  letter-spacing: 0;
}

.chat-header p {
  max-width: 780px;
  margin: 10px 0 0;
}

.agent-state {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 8px 12px;
  background: var(--panel-strong);
}

.pulse {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  box-shadow: 0 0 0 5px rgba(35, 107, 78, .12);
}

.messages {
  padding: 34px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.message {
  max-width: min(760px, 88%);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  background: var(--panel-strong);
  box-shadow: 0 8px 24px rgba(31, 41, 34, .06);
}

.message p {
  margin: 0;
  white-space: pre-wrap;
}

.message.user {
  align-self: flex-end;
  background: #e6efe8;
  border-color: #c3d4c7;
}

.composer {
  margin: 0 34px 30px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.composer textarea {
  width: 100%;
  min-height: 116px;
  resize: vertical;
  border: 0;
  padding: 18px;
  outline: none;
  background: transparent;
  color: var(--ink);
}

.composer-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border-top: 1px solid var(--line);
}

.send-button {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.send-button:hover,
.send-button:focus-visible {
  background: #19533b;
  color: var(--accent-ink);
}

.send-button:disabled,
textarea:disabled {
  cursor: wait;
  opacity: .65;
}

.review-pane {
  padding: 26px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.review-pane header {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.review-pane header p {
  margin: 0;
}

.proposal,
.job-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  padding: 16px;
}

.proposal p {
  margin: 7px 0 0;
}

.proposal-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.proposal-actions button {
  flex: 1;
}

.job-card {
  margin-top: auto;
}

@media (max-width: 1120px) {
  .workspace {
    grid-template-columns: 210px minmax(0, 1fr);
  }

  .review-pane {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .rail {
    gap: 18px;
  }

  .nav-stack {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    overflow-x: auto;
  }

  .chat-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 24px 18px;
  }

  .messages {
    padding: 22px 18px;
  }

  .message {
    max-width: 100%;
  }

  .composer {
    margin: 0 18px 22px;
  }

  .review-pane {
    display: flex;
  }
}