:root {
  --ink: #17211a;
  --muted: #647061;
  --paper: #f7f1e4;
  --panel: rgba(255, 252, 244, 0.86);
  --line: rgba(59, 48, 31, 0.16);
  --forest: #153c2d;
  --brass: #b5792f;
  --terracotta: #9f4d32;
  --cream: #fff9ed;
  --shadow: 0 24px 80px rgba(24, 31, 21, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(181, 121, 47, 0.34), transparent 34rem),
    radial-gradient(circle at 88% 12%, rgba(21, 60, 45, 0.22), transparent 30rem),
    linear-gradient(135deg, #fcf5e8 0%, #efe1ca 45%, #d9c19b 100%);
  font-family: Georgia, "Times New Roman", serif;
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(23, 33, 26, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 33, 26, 0.05) 1px, transparent 1px);
  background-size: 34px 34px;
}

button,
textarea {
  font: inherit;
}

.shell {
  position: relative;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0;
}

.hero {
  display: grid;
  grid-template-columns: 0.9fr 1.5fr;
  gap: 28px;
  align-items: end;
  margin-bottom: 28px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: rgba(255, 249, 237, 0.7);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  gap: 16px;
  align-items: center;
}

.brand-mark {
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  border-radius: 24px;
  color: var(--cream);
  background: linear-gradient(145deg, var(--forest), #0e241b);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16), 0 12px 26px rgba(21, 60, 45, 0.28);
  font-size: 42px;
  font-weight: 700;
}

.eyebrow,
.kicker {
  margin: 0 0 8px;
  color: var(--terracotta);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 0.98;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 4.8rem);
}

h2 {
  max-width: 780px;
  font-size: clamp(2rem, 4.7vw, 5.4rem);
  letter-spacing: -0.06em;
}

.hero-copy p:last-child {
  max-width: 720px;
  color: var(--muted);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: 1.02rem;
  line-height: 1.7;
}

.trust-strip {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.trust-strip span {
  padding: 9px 13px;
  border: 1px solid rgba(181, 121, 47, 0.32);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
  color: var(--forest);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: 0.86rem;
  font-weight: 800;
}

.workspace {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 24px;
}

.guide-card,
.chat-card {
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.guide-card {
  align-self: start;
  padding: 24px;
}

.prompt {
  display: block;
  width: 100%;
  margin: 10px 0;
  padding: 14px 16px;
  border: 1px solid rgba(21, 60, 45, 0.18);
  border-radius: 18px;
  background: #fffaf0;
  color: var(--forest);
  cursor: pointer;
  text-align: left;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.prompt:hover {
  border-color: rgba(181, 121, 47, 0.72);
  box-shadow: 0 10px 24px rgba(181, 121, 47, 0.16);
  transform: translateY(-2px);
}

.note {
  margin-top: 20px;
  padding: 16px;
  border-left: 4px solid var(--brass);
  border-radius: 16px;
  background: rgba(181, 121, 47, 0.12);
  color: var(--muted);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: 0.94rem;
  line-height: 1.55;
}

.chat-card {
  display: flex;
  min-height: 640px;
  flex-direction: column;
  overflow: hidden;
}

.messages {
  flex: 1;
  padding: 26px;
  overflow-y: auto;
}

.message {
  width: min(760px, 92%);
  margin-bottom: 18px;
  padding: 18px 20px;
  border-radius: 24px;
  background: #fffaf0;
  box-shadow: 0 10px 30px rgba(34, 30, 20, 0.08);
}

.message.user {
  margin-left: auto;
  background: var(--forest);
  color: var(--cream);
}

.message.bot {
  border: 1px solid rgba(181, 121, 47, 0.2);
}

.speaker {
  display: block;
  margin-bottom: 8px;
  color: var(--brass);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.message.user .speaker {
  color: #f2c47d;
}

.message p {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.6;
}

.citations {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: 0.9rem;
}

.citations strong {
  color: var(--forest);
}

.followups {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: "Trebuchet MS", Verdana, sans-serif;
}

.followups strong {
  display: block;
  margin-bottom: 10px;
  color: var(--forest);
  font-size: 0.86rem;
}

.followup-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.followup-list button {
  padding: 9px 12px;
  border: 1px solid rgba(21, 60, 45, 0.16);
  border-radius: 999px;
  background: rgba(255, 249, 237, 0.76);
  color: var(--forest);
  cursor: pointer;
  font-size: 0.84rem;
  font-weight: 800;
}

.followup-list button:hover {
  border-color: rgba(181, 121, 47, 0.72);
  background: #fffaf0;
}

.composer {
  padding: 18px;
  border-top: 1px solid var(--line);
  background: rgba(255, 249, 237, 0.78);
}

textarea {
  width: 100%;
  resize: vertical;
  min-height: 92px;
  padding: 16px;
  border: 1px solid rgba(21, 60, 45, 0.2);
  border-radius: 20px;
  outline: none;
  background: #fffdf6;
  color: var(--ink);
}

textarea:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 4px rgba(181, 121, 47, 0.15);
}

.composer-actions {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  margin-top: 12px;
}

.status {
  color: var(--muted);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-size: 0.9rem;
}

.composer button {
  padding: 13px 20px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--terracotta), var(--brass));
  color: white;
  cursor: pointer;
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-weight: 900;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

@media (max-width: 860px) {
  .hero,
  .workspace {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 24px;
  }

  .chat-card {
    min-height: 580px;
  }
}