:root {
  --bg-color: #ffffff;
  --text-color: #111;
  --header-bg: #e0f4ff;
  --menu-bg: #ffffff;
  --menu-text: #007acc;
  --menu-hover-bg: #f0f8ff;
  --link-color: #007acc;
  --table-bg: #ffffff;
  --table-text: #111;
  --table-border: #ccc;
  --footer-bg: #e0f4ff;
  --footer-text: #333;
  --footer-link: #007acc;
  --caution-bg: #fff8e1;
  --caution-border: #f9a825;
  --caution-text: #8a6d1d;
}

body.dark {
  --bg-color: #121212;
  --text-color: #e0e0e0;
  --header-bg: #1f1f1f;
  --menu-bg: #1f1f1f;
  --menu-text: #3399ff;
  --menu-hover-bg: #2a2a2a;
  --link-color: #3399ff;
  --table-bg: #1f1f1f;
  --table-text: #e0e0e0;
  --table-border: #333;
  --footer-bg: #1f1f1f;
  --footer-text: #e0e0e0;
  --footer-link: #3399ff;
  --caution-bg: #3a2f00;
  --caution-border: #f9a825;
  --caution-text: #fff3b0;
}


* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}


body {
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  animation: fadeIn 0.8s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}


header {
  background: var(--header-bg);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.hamburger {
  font-size: 1.8rem;
  cursor: pointer;
  user-select: none;
}


.menu {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 60px;
  right: 20px;
  background-color: var(--menu-bg);
  border: 1px solid #ccc;
  border-radius: 10px;
  overflow: visible;
  min-width: 180px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  animation: fadeIn 0.3s ease;
  z-index: 100;
}

.menu a, .menu button {
  padding: 0.75rem 1.2rem;
  color: var(--menu-text);
  text-decoration: none;
  transition: background 0.2s;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  position: relative;
  white-space: nowrap;
}

.menu a:hover, .menu button:hover {
  background-color: var(--menu-hover-bg);
}


.submenu {
  display: none;
  flex-direction: column;
  border-top: 1px solid #ccc;
}

.more-submenu {
  display: none;
  position: absolute;
  top: 0;
  right: 100%;
  background: var(--menu-bg);
  border: 1px solid #ccc;
  border-radius: 10px;
  min-width: 180px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  flex-direction: column;
  z-index: 110;
}

.more-submenu a {
  padding: 0.75rem 1.2rem;
  color: var(--menu-text);
  text-decoration: none;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  white-space: nowrap;
}

.more-submenu a:hover {
  background-color: var(--menu-hover-bg);
}


main {
  padding: 2rem;
  max-width: 900px;
  margin: auto;
}

.title-filter-container {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  margin: 0;
}

p {
  margin-bottom: 1rem;
  font-size: 1rem;
}

h2 {
  font-size: 1.3rem;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}


table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  background-color: var(--table-bg);
  color: var(--table-text);
  border: 1px solid var(--table-border);
}

table th, table td {
  border: 1px solid var(--table-border);
  padding: 0.75rem;
  text-align: center;
}

table th {
  background-color: var(--menu-hover-bg);
  font-weight: 600;
}

table td a {
  color: var(--link-color);
  text-decoration: underline;
}


footer {
  margin-top: 3rem;
  background: var(--footer-bg);
  padding: 1rem 2rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--footer-text);
}

footer a {
  color: var(--footer-link);
  text-decoration: none;
  margin: 0 10px;
}

footer a:hover {
  text-decoration: underline;
}

footer .copyright {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: #666;
}

#filterBtn {
  padding: 0.5rem 1rem;
  cursor: pointer;
  border: 1.5px solid var(--link-color);
  background: var(--bg-color);
  color: var(--link-color);
  border-radius: 6px;
  font-weight: 600;
  user-select: none;
  white-space: nowrap;
}

#filterDropdown {
  display: none;
  position: absolute;
  top: 110%;
  left: 0;
  background: var(--menu-bg);
  border: 1px solid #ccc;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  min-width: 180px;
  z-index: 200;
}

.filterOption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0.75rem 1.2rem;
  background: none;
  border: none;
  color: var(--link-color);
  cursor: pointer;
  font-weight: 600;
  user-select: none;
}

.filterOption:hover {
  background-color: var(--menu-hover-bg);
}

.filterOption.active {
  border: 2px solid var(--link-color);
  border-radius: 6px;
  font-weight: 700;
}

.filterOption span {
  user-select: none;
}

.caution-box {
  border: 2px solid var(--caution-border);
  background-color: var(--caution-bg);
  color: var(--caution-text);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  max-width: 600px;
  margin: 1rem 0;
}

body {
  transition: background-color 0.3s ease, color 0.3s ease;
}