:root {
  color-scheme: light;
  --bg: #f4efe7;
  --panel: #fffdf9;
  --panel-strong: #fffaf2;
  --border: #d8ccba;
  --text: #201a14;
  --muted: #6f6256;
  --accent: #b6542e;
  --accent-strong: #8d3c1f;
  --danger: #8f2d2d;
  --shadow: 0 18px 45px rgba(76, 52, 35, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(182, 84, 46, 0.18), transparent 28%),
    linear-gradient(180deg, #f8f2ea 0%, var(--bg) 100%);
}

button,
input,
select,
textarea {
  font: inherit;
}

.shell {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
  min-height: 100vh;
  padding: 20px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(340px, 1.3fr) minmax(300px, 1fr);
  grid-template-rows: minmax(0, 1fr) 240px;
  gap: 20px;
}

.messages {
  grid-column: 2;
  grid-row: 1;
}

.notifications {
  grid-column: 3;
  grid-row: 1;
}

.logs {
  grid-column: 1 / span 3;
  grid-row: 2;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.controls {
  padding: 24px;
  overflow: auto;
}

.panel-header {
  padding: 22px 24px 0;
}

.panel-header.row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 1.8rem;
}

h2 {
  font-size: 1.1rem;
}

.muted {
  color: var(--muted);
}

.stack {
  display: grid;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(216, 204, 186, 0.7);
}

.section-title {
  display: grid;
  gap: 4px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.92rem;
}

.inline {
  grid-template-columns: auto 1fr;
  align-items: center;
}

input,
select,
textarea,
button {
  border-radius: 14px;
  border: 1px solid var(--border);
}

input,
select,
textarea {
  width: 100%;
  padding: 11px 13px;
  background: #fff;
  color: var(--text);
}

textarea {
  resize: vertical;
}

button {
  padding: 11px 14px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}

button:hover {
  transform: translateY(-1px);
  background: var(--accent-strong);
}

button.secondary {
  background: var(--panel-strong);
  color: var(--text);
}

button.secondary:hover {
  background: #f3e6d4;
}

button.danger {
  background: var(--danger);
  color: #fff;
}

.actions {
  display: flex;
  gap: 10px;
}

.meta-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel-strong);
  font-size: 0.9rem;
}

.actions > * {
  flex: 1;
}

.actions.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.conversation-list,
.message-list,
.notification-list,
.log-output {
  height: calc(100% - 84px);
  margin: 0;
  padding: 18px 24px 24px;
  overflow: auto;
}

.conversation-item,
.message-item,
.notification-item {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 16px;
  padding: 14px;
}

.conversation-list,
.message-list,
.notification-list {
  display: grid;
  align-content: start;
  gap: 12px;
}

.conversation-item {
  cursor: pointer;
}

.conversation-item.active {
  border-color: var(--accent);
  background: #fff7ef;
}

.meta,
.submeta {
  color: var(--muted);
  font-size: 0.85rem;
}

.submeta {
  margin-top: 6px;
}

.message-item.mine {
  background: #fff3e8;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--panel-strong);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--muted);
}

.empty {
  color: var(--muted);
}

.log-output {
  background: #1f1a17;
  color: #f5eada;
  font-size: 0.82rem;
  line-height: 1.45;
  white-space: pre-wrap;
}

@media (max-width: 1100px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto 240px;
  }

  .messages,
  .notifications,
  .logs {
    grid-column: auto;
    grid-row: auto;
  }
}