:root {
  --bg: #f3efe4;
  --panel: rgba(255, 250, 242, 0.92);
  --panel-strong: #fffdf8;
  --line: rgba(64, 44, 27, 0.12);
  --ink: #2c2219;
  --muted: #75685b;
  --accent: #b24c2f;
  --accent-soft: #f4d7c8;
  --accent-deep: #7d2a15;
  --user: #f7e2c6;
  --assistant: #fff;
  --status: #f7efe6;
  --shadow: 0 24px 60px rgba(76, 51, 31, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  background:
    radial-gradient(
      circle at top left,
      rgba(178, 76, 47, 0.18),
      transparent 24%
    ),
    radial-gradient(
      circle at bottom right,
      rgba(168, 140, 92, 0.22),
      transparent 30%
    ),
    linear-gradient(135deg, #efe7d7 0%, #f7f2e8 48%, #ece4d4 100%);
}

.shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 24px auto;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

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

.eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-deep);
  margin: 0 0 8px;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 0.98;
}

.lede {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 15px;
}

.stat-grid {
  display: grid;
  gap: 12px;
}

.stat {
  padding: 14px 16px;
  border-radius: 18px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
}

.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: 6px;
}

.stat-value {
  font-size: 16px;
  line-height: 1.4;
  word-break: break-word;
}

.main {
  min-height: calc(100vh - 48px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
}

.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px 16px;
  border-bottom: 1px solid var(--line);
}

.main-title {
  margin: 0;
  font-size: 24px;
}

.main-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

button {
  border: 0;
  cursor: pointer;
}

.ghost,
.primary {
  border-radius: 999px;
  padding: 11px 16px;
  font-size: 14px;
  transition:
    transform 160ms ease,
    background 160ms ease,
    opacity 160ms ease;
}

.ghost {
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  border: 1px solid var(--line);
}

.primary {
  background: linear-gradient(135deg, var(--accent) 0%, #d26f43 100%);
  color: #fff;
}

.ghost:hover,
.primary:hover {
  transform: translateY(-1px);
}

.stream-area {
  overflow: auto;
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.message {
  max-width: min(82%, 760px);
  padding: 16px 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  white-space: pre-wrap;
  line-height: 1.65;
  font-size: 15px;
}

.message.user {
  align-self: flex-end;
  background: var(--user);
}

.message.assistant {
  align-self: flex-start;
  background: var(--assistant);
}

.status-log {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.status-item {
  padding: 10px 12px;
  border-radius: 14px;
  background: var(--status);
  border: 1px solid rgba(64, 44, 27, 0.08);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.composer {
  padding: 18px;
  border-top: 1px solid var(--line);
  background: rgba(255, 248, 239, 0.92);
}

.composer-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
}

textarea {
  width: 100%;
  min-height: 96px;
  max-height: 240px;
  resize: vertical;
  padding: 16px 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  font: inherit;
  line-height: 1.5;
}

textarea:focus,
.ghost:focus,
.primary:focus {
  outline: 3px solid rgba(178, 76, 47, 0.2);
  outline-offset: 1px;
}

.hint {
  margin: 10px 2px 0;
  color: var(--muted);
  font-size: 12px;
}

.empty {
  padding: 22px;
  border-radius: 24px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.8),
    rgba(244, 215, 200, 0.88)
  );
  border: 1px solid var(--line);
}

.empty h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.empty p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  color: var(--ink);
}

@media (max-width: 980px) {
  .shell {
    grid-template-columns: 1fr;
    width: min(100vw - 20px, 1180px);
    margin: 10px auto;
  }

  .main {
    min-height: 70vh;
  }
}

@media (max-width: 700px) {
  .main-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .composer-form {
    grid-template-columns: 1fr;
  }

  .message {
    max-width: 100%;
  }
}