:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-alt: #f8fafc;
  --border: #dce2ea;
  --text: #16202a;
  --muted: #526273;
  --accent: #0f4c81;
  --accent-hover: #0b3a63;
  --accent-soft: #e7f0f8;
  --ok: #1b6e42;
  --ok-soft: #e6f4ec;
  --warn: #8a5300;
  --warn-soft: #fff4e0;
  --danger: #9b1c1c;
  --danger-soft: #fde8e8;
  --grad-bg: #f3f0fa;
  --grad-border: #6d4aff;
  --grad-text: #311b7a;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(15, 28, 46, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.topbar {
  background: #0f1c2e;
  color: #fff;
  padding: 0.9rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.topbar a {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

.topbar-meta {
  font-size: 0.85rem;
  color: #b9c7d9;
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.container {
  max-width: 1360px;
  margin: 1.5rem auto;
  padding: 0 1.25rem 3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.35rem 1.5rem;
  margin-bottom: 1.25rem;
}

h1, h2, h3, h4 { margin-top: 0; color: var(--text); }
h1 { font-size: 1.55rem; margin-bottom: 0.4rem; }
h2 { font-size: 1.2rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.02rem; margin-bottom: 0.5rem; }

.lead { color: var(--muted); margin-top: 0; }

.alert {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  border: 1px solid transparent;
  font-size: 0.95rem;
}
.alert-error { background: var(--danger-soft); border-color: #f5bcbc; color: var(--danger); }
.alert-info { background: var(--accent-soft); border-color: #c5dcf0; color: var(--accent); }
.alert-warn { background: var(--warn-soft); border-color: #f3d7a3; color: var(--warn); }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem 1.25rem;
}

.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field label { font-weight: 600; font-size: 0.92rem; }
.field small { color: var(--muted); font-size: 0.82rem; }

input[type="file"], input[type="number"], input[type="text"], select {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface-alt);
  font-size: 0.94rem;
  color: var(--text);
  width: 100%;
}

.section-divider {
  margin: 1.25rem 0 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.checkbox-row {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.92rem;
  cursor: pointer;
}
.checkbox-label input { margin-top: 0.25rem; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 1.2rem;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  font-size: 0.94rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--surface-alt); }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.84rem; }

.form-actions {
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Badges & Pills */
.badge {
  display: inline-block;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  color: var(--muted);
}
.badge-strong { background: var(--danger-soft); border-color: #f5bcbc; color: var(--danger); }
.badge-moderate { background: var(--warn-soft); border-color: #f3d7a3; color: var(--warn); }
.badge-limited { background: var(--accent-soft); border-color: #c5dcf0; color: var(--accent); }
.badge-ok { background: var(--ok-soft); border-color: #b7e1c9; color: var(--ok); }

/* Thematic Tabs */
.tabs-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0.6rem;
  margin-bottom: 1.25rem;
}

.tab-btn {
  padding: 0.55rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.15s ease;
}
.tab-btn:hover { color: var(--text); border-color: #b8c4d4; }
.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* KPI & Stats Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.kpi-box {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
}
.kpi-label { font-size: 0.8rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }
.kpi-value { font-size: 1.3rem; font-weight: 700; margin-top: 0.2rem; color: var(--text); }
.kpi-sub { font-size: 0.8rem; color: var(--muted); margin-top: 0.15rem; }

.meta-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 1rem;
  font-size: 0.9rem;
  margin: 0;
}
.meta-list dt { font-weight: 600; color: var(--muted); }
.meta-list dd { margin: 0; word-break: break-word; }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
table.data-table th, table.data-table td {
  padding: 0.5rem 0.65rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
table.data-table th {
  background: var(--surface-alt);
  color: var(--muted);
  font-weight: 600;
}

/* Chart + Guide Cards (Side-by-side on desktop) */
.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: start;
}

@media (min-width: 980px) {
  .chart-card {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
}

.chart-media img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--border);
  cursor: zoom-in;
  display: block;
  background: #fff;
}

.chart-media-actions {
  margin-top: 0.6rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.chart-guide h3 { margin-bottom: 0.45rem; font-size: 1.08rem; }
.guide-question {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.guide-section { margin-bottom: 0.75rem; font-size: 0.91rem; }
.guide-section strong { display: block; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); margin-bottom: 0.2rem; }
.guide-section ul { margin: 0.25rem 0 0; padding-left: 1.15rem; }

.guide-gradient {
  background: var(--grad-bg);
  border-left: 3px solid var(--grad-border);
  padding: 0.55rem 0.75rem;
  border-radius: 4px;
  font-size: 0.88rem;
  color: var(--grad-text);
  margin-bottom: 0.75rem;
}
.guide-gradient strong {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.2rem;
}

.guide-caution {
  background: var(--warn-soft);
  border-left: 3px solid #d9822b;
  padding: 0.55rem 0.75rem;
  border-radius: 4px;
  font-size: 0.86rem;
  color: #5c3a00;
}

pre.json-view {
  background: #0f1c2e;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  max-height: 460px;
  font-size: 0.83rem;
}

/* Lightbox Modal */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 18, 30, 0.86);
  z-index: 1000;
  padding: 2rem;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 95vw;
  max-height: 92vh;
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
}

/* Loading Backdrop & Inline Queue Status */
.loader-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 28, 46, 0.55);
  backdrop-filter: blur(2px);
  z-index: 900;
  align-items: center;
  justify-content: center;
}
.loader-backdrop.open { display: flex; }

.loader-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 36px rgba(10, 20, 35, 0.25);
  padding: 1.75rem 2.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  min-width: 260px;
  text-align: center;
}

.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid var(--accent-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border: 2.5px solid var(--accent-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
  display: inline-block;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.queue-status {
  display: none;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
}
.queue-status.visible { display: inline-flex; }