/* =====================================================================
   DRONESENTRY — SHARED STYLESHEET (light / editorial)
   Cool paper-white canvas, a deep navy for identity and structure,
   a muted brick red as the one accent, serif for headings, plain
   sans for reading.
   ===================================================================== */

:root {
  /* Color */
  --bg:         #EEF0F2;   /* page background — cool, quiet slate-white */
  --surface:    #FFFFFF;
  --surface-2:  #F5F6F7;
  --ink:        #1A2233;   /* primary text — near-black navy */
  --ink-soft:   #545B68;   /* secondary text */
  --ink-faint:  #8A909B;
  --navy:       #1F3352;   /* brand rail / buttons */
  --navy-deep:  #16233B;   /* hero / hover-deep */
  --red:        #A13D33;   /* accent — used sparingly */
  --red-deep:   #7E2F27;
  --amber:      #B8862E;
  --line:       #DBDFE3;
  --line-soft:  #E7EAED;

  /* Type */
  --font-display: 'Source Serif 4', Georgia, serif;
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --radius: 6px;
  --shadow: 0 1px 2px rgba(22,35,59,0.06), 0 6px 20px rgba(22,35,59,0.07);
  --glow: 0 0 20px rgba(161,61,51,0.16);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; color: var(--ink); }
a { color: var(--navy); }
a:hover { color: var(--red); }

/* =====================================================================
   SIDEBAR — shared across every page
   ===================================================================== */
#sidebar {
  position: fixed;
  top: 0; left: 0;
  width: 240px;
  height: 100%;
  background: var(--navy);
  color: #E9ECF1;
  transform: translateX(-240px);
  transition: transform 0.25s ease;
  z-index: 1000;
  display: flex;
  flex-direction: column;
}
#sidebar.sidebar-open { transform: translateX(0); }

#sidebar-content {
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.sidebar-mark {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.2px;
  margin-bottom: 4px;
}
.sidebar-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #8FA0BE;
  margin-bottom: 30px;
  letter-spacing: 0.3px;
}

#sidebar-content nav { display: flex; flex-direction: column; gap: 2px; }
#sidebar-content nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px;
  margin: 0 -10px;
  border-radius: 4px;
  color: #C7CEDA;
  text-decoration: none;
  font-size: 15px;
  border-left: 2px solid transparent;
}
#sidebar-content nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
#sidebar-content nav a.current {
  color: #fff;
  border-left: 2px solid var(--red);
  background: rgba(255,255,255,0.05);
}
.nav-icon { width: 18px; text-align: center; font-size: 15px; opacity: 0.9; }

.sidebar-social {
  margin-top: auto;
  align-self: flex-end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 6px;
  color: #E9ECF1;
  text-decoration: none;
}
.sidebar-social svg { width: 22px; height: 22px; }
.sidebar-social:hover { background: rgba(255,255,255,0.1); color: #fff; }

#sidebar-handle {
  position: fixed;
  top: 18px; left: 0;
  width: 34px; height: 40px;
  background: var(--navy);
  color: #fff;
  border-radius: 0 6px 6px 0;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow);
  cursor: pointer;
  font-size: 18px;
  z-index: 1001;
  transition: background 0.15s ease, transform 0.25s ease;
}
#sidebar-handle:hover { background: var(--navy-deep); }

/* =====================================================================
   GENERIC PANEL (used on map/heatmap pages, floating over the map canvas)
   ===================================================================== */
.panel {
  position: absolute;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--line-soft);
  z-index: 1000;
}
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  background: var(--surface-2);
  border-bottom: 1px solid var(--line-soft);
  border-radius: var(--radius) var(--radius) 0 0;
}
.panel button.collapse-btn, .panel button {
  background: none;
  border: none;
  font-size: 14px;
  cursor: pointer;
  color: var(--ink-soft);
}
.panel-content { padding: 12px 14px; font-size: 13.5px; color: var(--ink-soft); line-height: 1.5; }
.collapsed .panel-content { display: none; }

/* Leaflet chrome, kept close to default but tied to the theme's tokens */
.leaflet-popup-content-wrapper {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow);
}
.leaflet-popup-tip { background: var(--surface); }
.leaflet-control-attribution {
  background: rgba(255,255,255,0.85) !important;
  color: var(--ink-faint) !important;
}
.leaflet-control-attribution a { color: var(--ink-soft) !important; }

/* =====================================================================
   PAGE SHELL (non-map pages)
   ===================================================================== */
.page {
  max-width: 900px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}
.page-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  margin-bottom: 8px;
}
.page h1 { font-size: 36px; margin: 0 0 10px; }
.page .lede { color: var(--ink-soft); font-size: 16px; max-width: 60ch; margin-bottom: 40px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid var(--navy);
  transition: background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { background: var(--navy-deep); color: #fff; }