:root {
  --ink: #1c2b2d;
  --muted: #607174;
  --paper: #f4f7f4;
  --panel: #ffffff;
  --line: #d7e1dc;
  --accent: #0d766e;
  --accent-dark: #07534f;
  --warning: #a6562e;
  --shadow: 0 18px 45px rgba(28, 43, 45, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1.5;
}

.site-header {
  background: linear-gradient(135deg, #e2f0eb 0%, #f4f7f4 62%, #f1e8dc 100%);
  border-bottom: 1px solid var(--line);
}

.header-inner, .page-shell, .site-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.header-inner { padding: 56px 0 48px; }
.eyebrow, .section-label { margin: 0 0 8px; color: var(--accent); font: 700 0.76rem/1.2 Arial, sans-serif; letter-spacing: 0.11em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { max-width: 720px; margin-bottom: 12px; font-size: clamp(2.4rem, 6vw, 4.8rem); line-height: 0.98; letter-spacing: 0; }
h2 { margin-bottom: 0; font-size: 1.65rem; line-height: 1.1; }
.intro { max-width: 600px; margin-bottom: 0; color: var(--muted); font-size: 1.12rem; }

.page-shell { padding: 34px 0 70px; }
.search-panel, .metadata-panel, .image-panel { background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow); }
.search-panel { display: grid; grid-template-columns: minmax(180px, 0.7fr) 1.3fr; gap: 32px; align-items: end; padding: 28px; }
.search-form label { display: block; margin-bottom: 8px; font: 700 0.8rem Arial, sans-serif; }
.search-row { display: flex; gap: 10px; }
input, button { min-height: 48px; border-radius: 3px; font: 1rem Arial, sans-serif; }
input { width: 100%; padding: 0 14px; color: var(--ink); border: 1px solid #b8c9c1; background: #fbfdfb; }
input:focus { outline: 3px solid rgba(13, 118, 110, 0.16); border-color: var(--accent); }
button { padding: 0 24px; color: #fff; border: 0; background: var(--accent); cursor: pointer; font-weight: 700; }
button:hover { background: var(--accent-dark); }
.search-help { margin: 8px 0 0; color: var(--muted); font: 0.8rem Arial, sans-serif; }

.status { min-height: 26px; margin: 22px 2px 0; color: var(--muted); font: 0.9rem Arial, sans-serif; }
.status.error { color: var(--warning); font-weight: 700; }
.empty-state { margin-top: 8px; padding: 72px 24px; text-align: center; border: 1px dashed #b7c9c0; background: rgba(255,255,255,0.46); }
.empty-state p { margin-bottom: 0; color: var(--muted); }
.status-mark { display: inline-grid; place-items: center; width: 34px; height: 34px; margin-bottom: 12px; color: #fff; border-radius: 50%; background: var(--accent); font: 1.4rem Arial, sans-serif; }

.result-layout { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 22px; margin-top: 8px; }
.metadata-panel, .image-panel { padding: 28px; }
.result-heading { padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.metadata-list { display: grid; grid-template-columns: minmax(120px, 0.7fr) minmax(0, 1.3fr); margin: 0; }
.metadata-list dt, .metadata-list dd { padding: 14px 0; border-bottom: 1px solid #e6eeea; overflow-wrap: anywhere; }
.metadata-list dt { color: var(--muted); font: 700 0.78rem Arial, sans-serif; text-transform: uppercase; }
.metadata-list dd { margin: 0; padding-left: 18px; white-space: pre-wrap; }
.image-state { margin-top: 20px; padding: 16px; color: var(--muted); background: #f5f8f6; font: 0.9rem Arial, sans-serif; }
.image-state.missing { color: var(--warning); background: #fff4ed; }
.image-frame { display: grid; place-items: center; min-height: 260px; margin-top: 16px; padding: 12px; overflow: auto; background: #172224; }
#tiff-canvas { display: block; max-width: 100%; height: auto; }
.site-footer { padding: 0 0 30px; color: var(--muted); font: 0.78rem Arial, sans-serif; }

@media (max-width: 760px) {
  .header-inner, .page-shell, .site-footer { width: min(100% - 24px, 1120px); }
  .header-inner { padding: 40px 0 34px; }
  .search-panel, .result-layout { grid-template-columns: 1fr; }
  .search-panel, .metadata-panel, .image-panel { padding: 20px; }
  .search-row { flex-direction: column; }
  button { width: 100%; }
  .metadata-list { grid-template-columns: 1fr; }
  .metadata-list dt { padding-bottom: 4px; border-bottom: 0; }
  .metadata-list dd { padding: 0 0 14px; }
}