/* ===============================
   SECTION 1 — BASE LAYOUT
   =============================== */

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f4f4;
}

header {
  background: #8B0000;
  color: white;
  padding: 12px 20px;
  text-align: center;
}

h1 {
  margin: 0;
  font-size: 24px;
}
/* ===============================
   SECTION 2 — MAP CONTAINER
   =============================== */

#map {
  width: 100%;
  height: calc(100vh - 60px); /* full height minus header */
}
/* ===============================
   SECTION 3 — FILTER BUTTON
   =============================== */

#filter-btn {
  position: absolute;
  top: 80px;
  left: 20px;
  z-index: 1000;
  padding: 10px 16px;
  background: #8B0000;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}

#filter-btn:hover {
  background: #a00000;
}
/* ===============================
   SECTION 4 — FILTER PANEL
   =============================== */

#filter-panel {
  position: absolute;
  top: 0;
  left: -260px; /* hidden off-screen */
  width: 240px;
  height: 100%;
  background: white;
  padding: 20px;
  box-shadow: 2px 0 8px rgba(0,0,0,0.2);
  z-index: 1500;
  transition: left 0.3s ease;
  overflow-y: auto;
}

#filter-panel.open {
  left: 0; /* slide in */
}

#filter-panel h2 {
  margin-top: 0;
}

#filter-panel label {
  display: block;
  margin: 8px 0;
  font-size: 14px;
}
/* ===============================
   SECTION 5 — FIT MAP BUTTON
   =============================== */

#fit-map {
  margin-top: 15px;
  width: 100%;
  padding: 10px;
  background: #444;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

#fit-map:hover {
  background: #222;
}
/* ===============================
   SECTION 6 — MOBILE LAYOUT
   =============================== */

@media (max-width: 600px) {
  #filter-btn {
    top: 70px;
    left: 10px;
    padding: 8px 12px;
  }

  #filter-panel {
    width: 200px;
  }
}