/* ============================================
   GLOBAL STYLES
============================================ */
body {
  font-family: "IBM Plex Sans Thai", sans-serif, sans-serif;
  text-align: center;
  background-color: #f9f9f9;
  margin: 0;
}

/* ===============================
   HEADER
=============================== */
header {
  background-color: #459bec;
  padding: 10px 10px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  opacity: 1;
}

/* ===============================
   HEADER CONTAINER
=============================== */
.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1700px;
  margin: 0 auto;
}

/* ===============================
   LOGO SECTION
=============================== */
.logo {
  display: flex;
  align-items: center;
}
.logo img {
  height: 60px;
}

/* ===============================
   NAVIGATION
=============================== */
nav {
  display: flex;
  gap: 20px;
  margin: 0;
}

nav a {
  font-size: 1.5em;
  font-weight: 500;
  color: #fff;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 10px;
  transition: background-color 0.3s, color 0.3s;
}
nav a:hover {
  color: #c70000;
}
nav a.active {
  color: #fff;
  font-weight: bold;
}


/* ============================================
   TYPOGRAPHY
============================================ */
h1 {
  color: #459bec;
  font-size: 3.5rem;
  margin: 0;
}

h2 {
  font-size: 2rem;
  margin: 0;
}

p {
  color: #666;
  margin: 0;
}

/* ============================================
   LAYOUT: MAIN CONTENT 3-COLUMN
============================================ */
.main-content {
  display: flex;
  justify-content: center; /* จัดกลางแนวนอน */
  align-items: flex-start; /* จัดชิดบนแนวตั้ง */
  flex-wrap: wrap;         /* รองรับหลายบรรทัด */
  gap: 30px;
  padding: 10px;
  max-width: 1700px;
  margin: 0 auto;          /* กึ่งกลาง container */
}

.left-panel,
.center-panel {
  background: #fff;
  padding: 20px;
  border-radius: 20px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  flex: 1 1 300px; /* flex-grow:1, flex-shrink:1, flex-basis:300px */
  min-width: 300px;
  max-width: 600px;
}

.right-panel {
  
  flex: 1 1 100px; /* flex-grow:1, flex-shrink:1, flex-basis:300px */
  min-width: 280px;
  
}


/* ============================================
   AD IMAGE
============================================ */
.ad-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  margin-top: 10px;
}

/* ============================================
   MAP SVG STYLES
============================================ */
svg {
  width: 80%;
  height: auto;
  display: block;
  margin: 0 auto;
}
svg path {
  fill: #ccc;
  stroke: #fff;
  stroke-width: 1;
  cursor: pointer;
  transition: fill 0.3s;
}
svg path:hover {
  fill: #aaa;
}
svg path.visited {
  fill: #459bec;
}

/* ============================================
   DROPDOWN
============================================ */
select {
  padding: 10px;
  font-size: 16px;
  margin-top: 20px;
  border-radius: 20px;
  border: 1px solid #ccc;
  background-color: #fff;
  color: #333;
}

/* ============================================
   VISITED PROVINCES LIST
============================================ */
#visitedList {
  margin: 20px auto;
  padding: 15px;
  max-width: 400px;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  text-align: left;
}

#visitedList strong {
  display: block;
  margin-bottom: 10px;
  font-size: 16px;
  color: #444;
}

#visitedProvincesList {
  padding-left: 20px;
  margin-top: 8px;
}

/* ============================================
   TOOLTIP
============================================ */
.tooltip {
  position: absolute;
  display: none;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  padding: 5px 8px;
  border-radius: 20px;
  font-size: 14px;
  pointer-events: none;
  z-index: 1000;
}

/* ============================================
   BUTTONS
============================================ */
button,
#clearButton,
#shareButton,
#copyLinkButton,
#ZoomButton {
  padding: 10px 20px;
  border: none;
  cursor: pointer;
}

/* Clear Button */
#clearButton {
  background-color: #f44336;
  color: #fff;
  border-radius: 20px;
}
#clearButton:hover {
  background-color: #d32f2f;
}

/* Share & Copy Link */
#shareButton,
#copyLinkButton {
  background-color: #2196F3;
  color: #fff;
  border-radius: 6px;
  margin-top: 10px;
}
#shareButton:hover,
#copyLinkButton:hover {
  background-color: #1976D2;
}

/* Zoom Button */
.ZoomButton {
  background-color: #5754f5;
  color: #fff;
  border-radius: 20px;
}
.ZoomButton:hover {
  background-color: #0003a7;
}

/* ============================================
   FOOTER
============================================ */
.footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 1rem;
  margin-top: 2rem;
}
.footer p {
  margin: 0;
}


/* ============================================
   RESPONSIVE DESIGN: Mobile ≤ 720px
============================================*/
@media (max-width: 480px) {
  .header-container {
    display: flex;
    flex-direction: column; /* เรียงแนวตั้ง */
    justify-content: center;
    align-items: center;    /* จัดกลางแนวนอน */
    text-align: center;
    margin: 0 auto;
  }

  .logo img {
    height: 40px; /* ลดขนาดโลโก้ให้พอดีมือถือ */
  }

  nav {
    margin-top: 10px;
    display: flex;
    gap: 5px;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  nav a {
    font-size: 1.2em;
    padding: 6px 12px;
  }

  .footer p {
    font-size: 0.5rem;
  }
}