:root {
  --bg: #f3efe6;
  --paper: #fffdf7;
  --paper-strong: #fffaf0;
  --ink: #182126;
  --muted: #4d5b64;
  --line: #cfd7dc;
  --brand: #0f766e;
  --brand-soft: #dcf3ef;
  --accent: #b45309;
  --accent-soft: #ffe6cf;
  --critical: #a16207;
  --critical-soft: #fff4d6;
  --radius: 18px;
  --shadow: 0 18px 42px rgba(15, 33, 38, 0.09);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

.page-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 12% 12%, rgba(214, 239, 231, 0.95) 0%, transparent 40%),
    radial-gradient(circle at 88% 76%, rgba(255, 229, 210, 0.9) 0%, transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.38) 0%, rgba(243, 239, 230, 0.76) 100%);
  pointer-events: none;
  z-index: -1;
}

.section {
  width: min(1160px, calc(100% - 2rem));
  margin: 1.35rem auto;
  padding: 1.45rem;
  background: rgba(255, 253, 247, 0.96);
  border: 1px solid rgba(207, 215, 220, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.hero {
  margin-top: 2rem;
  padding-bottom: 1.8rem;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand);
  font-weight: 700;
  font-size: 0.78rem;
}

h1,
h2,
h3,
h4 {
  font-family: Georgia, "Times New Roman", serif;
  margin-top: 0.2rem;
}

h1 {
  max-width: 14ch;
  margin-bottom: 0.6rem;
  font-size: clamp(1.8rem, 4.7vw, 3.25rem);
  line-height: 1.05;
}

h2 {
  margin-bottom: 0.55rem;
  font-size: clamp(1.35rem, 3.4vw, 2rem);
}

h3 {
  margin-bottom: 0.45rem;
  font-size: 1.1rem;
}

p {
  line-height: 1.58;
}

.hero-copy,
.muted,
.scenario-role,
.scenario-description {
  color: var(--muted);
}

.hero-copy {
  max-width: 72ch;
}

.hero-copy-secondary {
  max-width: 68ch;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1rem;
}

.hero-tags span {
  padding: 0.4rem 0.78rem;
  border-radius: 999px;
  border: 1px solid #b9d8d2;
  background: rgba(220, 243, 239, 0.92);
  color: var(--brand);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-metrics,
.overview-grid,
.agent-grid,
.governance-grid,
.scenario-meta-grid,
.split {
  display: grid;
  gap: 0.9rem;
}

.hero-metrics {
  margin-top: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.hero-metrics article,
.overview-card,
.agent-card,
.path-card,
.governance-card {
  border-radius: 14px;
  border: 1px solid var(--line);
}

.hero-metrics article {
  padding: 0.82rem 0.95rem;
  border-left: 5px solid var(--brand);
  background: linear-gradient(180deg, #ffffff 0%, #f6fbf9 100%);
}

.hero-metrics strong {
  display: block;
  margin-bottom: 0.1rem;
  font-size: 1.28rem;
}

.overview-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.overview-card {
  padding: 1rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 248, 236, 0.94) 100%);
}

.agent-grid {
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.architecture-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1rem 0 1.1rem;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.65rem;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 0.6rem 0.98rem;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.download-button:hover {
  filter: brightness(0.96);
}

.agent-card {
  padding: 0.95rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(245, 250, 248, 0.98) 100%);
}

.split {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.panel {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.98);
}

.path-stack {
  display: grid;
  gap: 0.85rem;
}

.path-card {
  padding: 0.95rem;
  background:
    linear-gradient(180deg, rgba(220, 243, 239, 0.4) 0%, rgba(255, 255, 255, 1) 100%);
}

.governance-grid {
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.governance-card {
  padding: 0.9rem;
  background:
    linear-gradient(180deg, rgba(255, 230, 207, 0.56) 0%, rgba(255, 255, 255, 1) 100%);
}

.info-kicker {
  margin: 0 0 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 700;
}

.scenario-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.scenario-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 0.48rem 0.78rem;
  border-radius: 999px;
  cursor: pointer;
}

.scenario-btn.active {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.scenario-detail {
  margin-top: 0.9rem;
  padding: 1rem;
  border-radius: 14px;
  border: 1px dashed #c7d0d5;
  background:
    linear-gradient(180deg, rgba(255, 252, 244, 1) 0%, rgba(255, 255, 255, 0.96) 100%);
}

.scenario-role {
  margin: 0 0 0.35rem;
  font-weight: 700;
}

.scenario-description {
  margin-top: 0.35rem;
}

.scenario-quote {
  margin: 0.85rem 0 1rem;
  padding: 0.95rem 1rem;
  border-left: 4px solid var(--brand);
  border-radius: 0 12px 12px 0;
  background: rgba(220, 243, 239, 0.5);
  color: var(--ink);
  font-style: italic;
}

.scenario-meta-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 1rem 0 1.05rem;
}

.detail-list {
  margin: 0.45rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.detail-list li + li {
  margin-top: 0.45rem;
}

button {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 0.6rem 0.98rem;
  cursor: pointer;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}

button:hover {
  filter: brightness(0.96);
}

.state-flow {
  display: grid;
  gap: 0.5rem;
  list-style: none;
  margin: 0.75rem 0;
  padding: 0;
}

.state-flow li {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.62rem 0.74rem;
  background: #fff;
  color: var(--muted);
}

.state-flow li.active {
  border-color: var(--brand);
  background: var(--brand-soft);
  color: var(--ink);
}

.state-flow li.conditional {
  border-color: #c17c00;
  background: #fff4d6;
  color: #7a4b00;
}

.state-flow li.escalated {
  border-color: var(--critical);
  background: var(--critical-soft);
  color: var(--ink);
}

.state-flow li.inactive {
  opacity: 0.55;
}

.hitl-outcome {
  margin: 0.2rem 0 0;
  font-weight: 700;
}

.chat-shell {
  border: 1px solid var(--line);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(248, 251, 250, 1) 0%, rgba(255, 255, 255, 1) 100%);
  min-height: 76vh;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.chatkit-root {
  display: block;
  width: 100%;
  height: 76vh;
}

@media (max-width: 720px) {
  .section {
    width: calc(100% - 1rem);
    margin: 0.85rem auto;
    padding: 1rem;
  }

  .hero {
    margin-top: 1rem;
  }

  .hero-tags {
    gap: 0.42rem;
  }

  .chat-shell,
  .chatkit-root {
    height: 68vh;
  }
}