:root {
  color-scheme: light;
  --explorer-sea-950: #0c1d57;
  --explorer-sea-900: #12297a;
  --explorer-sea-600: #4057b2;
  --explorer-stone-100: #f5f1e8;
  --explorer-stone-300: #e3dccf;
  --explorer-sun-500: #f2a900;
  --explorer-terra-500: #c96b3b;
  --explorer-ink: #1e293b;
  --explorer-muted: #64748b;
  --explorer-paper: #fbf8f1;
  --explorer-panel: rgba(255, 252, 247, 0.78);
  --explorer-line: rgba(196, 212, 218, 0.66);
  --explorer-accent: var(--explorer-sea-900);
  --explorer-accent-strong: var(--explorer-sea-950);
  --explorer-warn: #a85a00;
  --explorer-radius-sm: 8px;
  --explorer-radius-md: 12px;
  --explorer-shadow: 0 8px 32px rgba(18, 41, 122, 0.12);
  --explorer-font-heading: "Montserrat", system-ui, sans-serif;
  --explorer-font-body: "Nunito", system-ui, -apple-system, sans-serif;
  --explorer-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* {
  box-sizing: border-box;
}

body.explorer-shell {
  display: flex;
  flex-direction: column;
  margin: 0;
  min-height: 100vh;
  color: var(--explorer-ink);
  font-family: var(--explorer-font-body);
}

.explorer-kpi-label,
.explorer-feedback,
.explorer-hint {
  color: var(--explorer-muted);
}

.explorer-btn {
  min-height: 44px;
  border-radius: var(--explorer-radius-sm);
  text-decoration: none;
  font-weight: 800;
}

.explorer-mode-nav {
  display: none;
}

.explorer-app {
  flex: 1 0 auto;
  width: min(1040px, 100%);
  margin: 0 auto;
  padding: 20px clamp(14px, 4vw, 32px) 40px;
}

@media (max-width: 900px) {
  .explorer-app {
    padding: 4px 12px 28px;
  }
}

.explorer-status {
  margin-bottom: 16px;
}

.explorer-status-summary,
.explorer-panel {
  border: 1px solid var(--explorer-line);
  background: var(--explorer-panel);
  border-radius: var(--explorer-radius-md);
  box-shadow: var(--explorer-shadow);
}

.explorer-status-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  padding: 12px;
}

.explorer-status-summary > div {
  padding: 2px 12px;
}

.explorer-status-summary > div + div {
  border-left: 1px solid var(--explorer-line);
}

.explorer-kpi-label {
  display: block;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 800;
}

.explorer-panel {
  padding: clamp(16px, 4vw, 28px);
}

.explorer-leaderboard-panel {
  margin-top: 16px;
}

.explorer-leaderboard-panel h2 {
  margin: 0 0 12px;
  color: var(--explorer-sea-950);
  font-family: var(--explorer-font-heading);
}

.explorer-leaderboard {
  overflow-x: auto;
}

.explorer-leaderboard table {
  width: 100%;
  border-collapse: collapse;
}

.explorer-leaderboard th,
.explorer-leaderboard td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--explorer-line);
  text-align: left;
}

.explorer-leaderboard th {
  color: var(--explorer-muted);
  font-size: .72rem;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.explorer-leaderboard td:last-child,
.explorer-leaderboard th:last-child {
  text-align: right;
}

.explorer-leaderboard-avatar {
  margin-right: 5px;
}


.explorer-riddle-media {
  overflow: hidden;
  border-radius: var(--explorer-radius-sm);
  border: 1px solid var(--explorer-line);
  background: var(--explorer-stone-300);
  aspect-ratio: 16 / 9;
}

.explorer-riddle-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.explorer-riddle-body {
  margin: 18px 0;
}

.explorer-riddle-body h2,
.explorer-complete h2 {
  margin: 0 0 10px;
}

.explorer-timer {
  margin: 0 0 8px;
  font-family: var(--explorer-font-mono);
  font-weight: 800;
  color: var(--explorer-accent-strong);
}

.explorer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.explorer-btn {
  border: 0;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font: inherit;
}

.explorer-btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.explorer-btn-primary {
  background: linear-gradient(135deg, var(--explorer-sea-950), var(--explorer-sea-900));
  color: #fff;
  box-shadow: 0 4px 10px rgba(18, 41, 122, 0.22);
}

.explorer-btn-secondary {
  background: #fff;
  border: 1px solid var(--explorer-line);
  color: var(--explorer-ink);
}

.explorer-hint {
  padding: 12px;
  border-left: 4px solid var(--explorer-warn);
  background: #fff7e6;
}

.explorer-feedback {
  min-height: 24px;
}

.explorer-discovery-eyebrow {
  margin: 0 0 8px;
  color: var(--explorer-accent-strong);
  font-family: var(--explorer-font-mono);
  font-weight: 800;
  text-transform: uppercase;
}

.explorer-discovery-text {
  max-width: 72ch;
  white-space: pre-line;
}

.explorer-final-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.explorer-final-stats > div {
  padding: 14px;
  background: #fff;
  border: 1px solid var(--explorer-line);
  border-radius: var(--explorer-radius-sm);
}

.explorer-final-stats span {
  display: block;
  color: var(--explorer-muted);
}

.explorer-album-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.explorer-album {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(160px, 240px);
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.explorer-album img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--explorer-radius-sm);
  border: 1px solid var(--explorer-line);
}

.explorer-admin-form {
  display: grid;
  gap: 12px;
}

.explorer-admin-form label {
  display: grid;
  gap: 6px;
  font-weight: 700;
}

.explorer-admin-form input,
.explorer-admin-form textarea {
  width: 100%;
  border: 1px solid var(--explorer-line);
  border-radius: var(--explorer-radius-sm);
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}

.explorer-admin-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.explorer-admin-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--explorer-line);
}

.explorer-admin-row p {
  margin: 6px 0 0;
  color: var(--explorer-muted);
}

.hidden {
  display: none !important;
}

@media (max-width: 900px) {
  .explorer-mode-nav {
    margin-right: 12px;
    margin-left: 12px;
  }

  .explorer-final-stats {
    grid-template-columns: 1fr;
  }

  .explorer-actions,
  .explorer-btn,
  .explorer-admin-grid,
  .explorer-admin-row {
    width: 100%;
  }

  .explorer-admin-grid,
  .explorer-admin-row {
    grid-template-columns: 1fr;
  }

}