/* Base side-menu */
.side-menu {
  position: fixed;
  top: 0;
  left: -250px;
  width: 205px;
  height: 100vh;
  background-image: linear-gradient(136deg, #1d3c5e 0%, #181719 100%);
  overflow: hidden;
  transition: left 0.28s ease-in-out;
  z-index: 900;
  padding-bottom: 16px;
}

/* Menu items */
.side-menu ul { list-style: none; padding: 1rem 0.6rem; margin: 0; }
.side-menu ul li { margin: 0.6rem 0; }
.side-menu ul li a,
.game-link {
  color: #00ffcc;
  text-decoration: none;
  font-size: 0.98rem;
  display: block;
  border-radius: 2px;
  width: 100%;
  box-sizing: border-box;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
  transition: background .15s ease;
  border-bottom: 1px solid rgba(15, 252, 240, 0.4); /* subtle underline */
  background: rgba(36, 88, 130, 0.6); 
  border-left: 7px solid #25acc4;
  padding: 6px 8px;
  border-radius: 8px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.side-menu ul li a:hover { 
  background: rgba(36, 88, 130, 0.8);
  color: #dd78fc;
  transform: translateX(3px); 
}

.small-note {
  font-size: 0.8rem;
  line-height: 1.3;
  margin-top: 0.8rem;
  color: #b6faf4;
}  

/* Panels (hidden by default) */
.side-menu .menu-panel {
  display: none;
  padding: 1rem 0.6rem;
  background: rgba(36, 88, 130, 0.8);
  color: #00ffcc;
  text-align: center;
}

/* Panel visible */
.side-menu .menu-panel.active-panel { display: block; }

/* Buttons in menu */
button:hover {   background: linear-gradient(90deg, #0ffcf0, #25acc4); color: #1e1e1e; }

/* show/hide */
.side-menu.open { left: 0; }

/* small helpers */
.hidden-panel { display: none; }

/* dark mode support */
body.dark .side-menu { background: #111; }

/* responsive tweaks for small screens */
@media (max-width: 768px) {
  .side-menu { width: 180px; left: -180px; }
}
@media (max-width: 480px) {
  .side-menu ul li a {
    font-size: 0.9rem;
  }
}