:root {
  --navy: #092d4c;
  --blue: #0d5f91;
  --sky: #eaf4fa;
  --line: #cbd9e2;
  --text: #17232d;
  --muted: #5e707d;
  --white: #fff;
  --success: #1f8f55;
  --warning: #c17d00;
  --danger: #b63b3b;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--text);
  background: #f4f7f9;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: center;
  padding: 1.25rem clamp(1rem, 4vw, 4rem);
  color: var(--white);
  background: linear-gradient(120deg, var(--navy), var(--blue));
  border-bottom: 4px solid #63b3df;
}

.eyebrow {
  margin: 0 0 .25rem;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  opacity: .8;
}

h1 { margin: 0; font-size: clamp(1.45rem, 3vw, 2.25rem); }
h2 { margin: 0 0 .4rem; }

.status {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: .9rem;
  white-space: nowrap;
}

.status-dot {
  width: .7rem;
  height: .7rem;
  border-radius: 50%;
  background: #d7dfe4;
  box-shadow: 0 0 0 4px rgb(255 255 255 / 12%);
}

.status-dot.online { background: #59d48b; }
.status-dot.missing { background: #ffc44d; }
.status-dot.error { background: #ff7777; }

main {
  width: min(1500px, calc(100% - 2rem));
  margin: 1.5rem auto 3rem;
}

.control-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 1fr)) auto;
  gap: 1rem;
  align-items: end;
  padding: 1rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: .65rem;
  box-shadow: 0 2px 10px rgb(14 45 66 / 6%);
}

label {
  display: grid;
  gap: .4rem;
  color: var(--muted);
  font-size: .82rem;
  font-weight: 650;
}

select, input, button {
  min-height: 2.65rem;
  border: 1px solid #aebfca;
  border-radius: .35rem;
  background: var(--white);
  color: var(--text);
  font: inherit;
}

select, input { padding: .5rem .7rem; }
button { padding: .5rem .85rem; cursor: pointer; font-weight: 650; }
button:hover { background: var(--sky); border-color: var(--blue); }

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

.site-card, .metadata {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
  padding: 1rem 1.15rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: .65rem;
}

.site-card p { margin: 0; color: var(--muted); }

.timestamp {
  text-align: right;
  min-width: 12rem;
}

.timestamp span, .metadata span {
  display: block;
  margin-bottom: .25rem;
  color: var(--muted);
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.viewer {
  position: relative;
  min-height: 420px;
  margin-top: 1rem;
  padding: .75rem;
  display: grid;
  place-items: center;
  overflow: auto;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: .65rem;
}

.viewer img {
  display: block;
  max-width: 100%;
  height: auto;
}

.loading, .missing {
  max-width: 42rem;
  padding: 4rem 2rem;
  text-align: center;
  color: var(--muted);
}

.missing h3 { color: var(--text); }

.metadata {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

footer {
  padding: 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: .85rem;
}

.hidden { display: none !important; }

@media (max-width: 1050px) {
  .control-panel { grid-template-columns: repeat(2, 1fr); }
  .button-row { grid-column: 1 / -1; }
}

@media (max-width: 650px) {
  .topbar, .site-card { align-items: flex-start; flex-direction: column; }
  .status { white-space: normal; }
  .control-panel { grid-template-columns: 1fr; }
  .button-row { grid-column: auto; }
  .button-row button { flex: 1 1 45%; }
  .timestamp { text-align: left; }
  .metadata { grid-template-columns: 1fr; }
  main { width: min(100% - 1rem, 1500px); }
}