:root {
  color-scheme: light;
  --bg: #f6f7f4;
  --surface: #ffffff;
  --ink: #16201c;
  --muted: #5f6b66;
  --line: #dce2dc;
  --green: #1f6f55;
  --green-dark: #154837;
  --blue: #315f8a;
  --amber: #b46f2a;
  --shadow: 0 14px 40px rgba(28, 41, 36, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: var(--green-dark);
}

code {
  background: #e9eee9;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.08rem 0.28rem;
}

.topbar {
  align-items: center;
  background: rgba(246, 247, 244, 0.94);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand,
.nav {
  align-items: center;
  display: flex;
  gap: 14px;
}

.brand {
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  background: conic-gradient(from 135deg, var(--green), var(--blue), var(--amber), var(--green));
  border-radius: 6px;
  display: inline-block;
  height: 22px;
  width: 22px;
}

.nav a {
  color: var(--muted);
  font-size: 0.94rem;
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

main {
  margin: 0 auto;
  max-width: 1180px;
  padding: 34px 24px 56px;
}

.museum-dashboard {
  align-items: stretch;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.8fr);
  min-height: calc(100vh - 132px);
}

.intro {
  align-self: center;
  max-width: 760px;
}

.eyebrow {
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 5.2rem);
  line-height: 0.96;
  margin-bottom: 22px;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  line-height: 1.05;
  margin-bottom: 12px;
}

h3 {
  font-size: 1.08rem;
  margin-bottom: 8px;
}

.lede {
  color: var(--muted);
  font-size: 1.15rem;
  max-width: 680px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button,
.copy-button {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-weight: 700;
  min-height: 42px;
  padding: 0 16px;
  text-decoration: none;
}

.button.primary {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.button:hover,
.copy-button:hover {
  border-color: var(--green);
}

.status-panel,
.visit-card,
.request-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.status-panel {
  align-self: center;
  padding: 20px;
}

.status-row {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 8px;
  padding: 15px 0;
}

.status-row:first-child {
  padding-top: 0;
}

.status-row span,
dt {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.status-row a,
.status-row button {
  justify-self: start;
}

.status-note,
.form-result {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 14px 0 0;
}

.dynamic-status {
  background: #eef5f1;
  border: 1px solid #cfe0d8;
  border-radius: 7px;
  display: grid;
  gap: 7px;
  margin-top: 16px;
  padding: 12px;
}

.dynamic-status strong {
  color: var(--green-dark);
}

.dynamic-status span {
  color: var(--muted);
  font-size: 0.9rem;
}

.section {
  border-top: 1px solid var(--line);
  padding: 54px 0;
}

.section-head {
  align-items: end;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  margin-bottom: 22px;
}

.section-head p {
  color: var(--muted);
  max-width: 540px;
}

.recording-grid,
.landmark-grid,
.agent-grid {
  display: grid;
  gap: 16px;
}

.recording-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.landmark-grid,
.agent-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.recording-card,
.landmark-card,
.agent-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.recording-thumb {
  align-items: center;
  aspect-ratio: 16 / 9;
  background: #dfe6e1;
  color: var(--muted);
  display: flex;
  font-weight: 800;
  justify-content: center;
  text-align: center;
}

.recording-thumb img {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.recording-body,
.landmark-card,
.agent-card {
  padding: 16px;
}

.recording-meta,
.landmark-meta,
.agent-role {
  color: var(--muted);
  font-size: 0.9rem;
}

.split {
  align-items: center;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.7fr);
}

.visit-card {
  padding: 20px;
}

.visit-card dl {
  display: grid;
  gap: 18px;
  margin: 0;
}

.visit-card dd {
  margin: 4px 0 0;
}

.request-section {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1fr);
}

.request-form {
  display: grid;
  gap: 14px;
  padding: 20px;
}

.request-form label {
  color: var(--muted);
  display: grid;
  font-size: 0.9rem;
  font-weight: 700;
  gap: 6px;
}

input,
textarea {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font: inherit;
  padding: 10px 12px;
  width: 100%;
}

input:focus,
textarea:focus {
  border-color: var(--green);
  outline: 3px solid rgba(31, 111, 85, 0.14);
}

.footer {
  align-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center;
  padding: 26px 24px;
}

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

@media (max-width: 900px) {
  .museum-dashboard,
  .split,
  .request-section {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .recording-grid,
  .landmark-grid,
  .agent-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding: 14px 18px;
  }

  main {
    padding: 24px 18px 44px;
  }

  .section-head {
    align-items: start;
    flex-direction: column;
    gap: 6px;
  }

  .recording-grid,
  .landmark-grid,
  .agent-grid {
    grid-template-columns: 1fr;
  }
}