:root {
  color: #172033;
  background: #f5f7fb;
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

button,
input,
select {
  font: inherit;
}

.shell {
  min-height: 100vh;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 28px;
  align-items: end;
  padding: 40px clamp(20px, 5vw, 72px) 28px;
  color: white;
  background:
    linear-gradient(110deg, rgba(11, 45, 85, 0.92), rgba(18, 90, 114, 0.82)),
    url("https://images.unsplash.com/photo-1554224155-6726b3ff858f?auto=format&fit=crop&w=1800&q=80") center/cover;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

h1 {
  max-width: 840px;
  margin: 20px 0 12px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.04;
}

.hero p {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
  line-height: 1.7;
}

.heroPanel {
  padding: 20px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
}

.metric {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}

.metric strong {
  font-size: 40px;
}

.bar {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
}

.bar i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: #7ce3c6;
}

.heroPanel small {
  display: block;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.78);
}

.workspace {
  display: grid;
  grid-template-columns: 280px minmax(360px, 1fr) minmax(320px, 440px);
  gap: 18px;
  padding: 22px clamp(20px, 5vw, 72px) 38px;
}

.profile,
.chat,
.output {
  min-height: 620px;
  border: 1px solid #dce3ee;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(24, 39, 75, 0.06);
}

.profile {
  padding: 20px;
}

h2 {
  margin: 0 0 18px;
  font-size: 20px;
}

.profile label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  color: #536176;
  font-size: 14px;
}

.profile input,
.profile select,
.composer input {
  width: 100%;
  border: 1px solid #cfd8e6;
  border-radius: 8px;
  padding: 11px 12px;
  color: #172033;
  background: #fbfcfe;
}

.capabilities {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.capabilities h3 {
  width: 100%;
  margin: 0 0 4px;
  font-size: 15px;
}

.capabilities span {
  padding: 7px 9px;
  border-radius: 999px;
  background: #e8f6f2;
  color: #116250;
  font-size: 13px;
}

.chat {
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  overflow: hidden;
}

.chatHeader {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 20px 0;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px 20px;
  overflow-y: auto;
}

.message {
  max-width: 82%;
  padding: 12px 14px;
  border-radius: 8px;
  line-height: 1.65;
}

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

.message.agent {
  align-self: flex-start;
  background: #eef5ff;
}

.message.user {
  align-self: flex-end;
  color: white;
  background: #175f8f;
}

.examples {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 20px 14px;
}

.examples button {
  flex: 0 0 auto;
  border: 1px solid #cfd8e6;
  border-radius: 999px;
  padding: 8px 11px;
  color: #31415a;
  background: #ffffff;
  cursor: pointer;
}

.composer {
  display: grid;
  grid-template-columns: 1fr 44px;
  gap: 10px;
  padding: 14px 20px 20px;
  border-top: 1px solid #eef1f6;
}

.composer button {
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 8px;
  color: white;
  background: #16846f;
  cursor: pointer;
}

.output {
  padding: 20px;
  overflow-y: auto;
}

.card {
  margin-bottom: 14px;
  padding: 16px;
  border: 1px solid #e0e7f0;
  border-radius: 8px;
  background: #fbfcfe;
}

.card header {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #175f8f;
}

.card h3 {
  margin: 0;
  font-size: 16px;
}

.card ul {
  margin: 12px 0 0;
  padding-left: 20px;
  color: #3e4d63;
  line-height: 1.7;
}

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

  .profile,
  .chat,
  .output {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 28px;
  }

  .workspace {
    padding-inline: 14px;
  }

  .message {
    max-width: 94%;
  }
}