.hamburger-fixed {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 2000;
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: 15px;
  border: none;
  border-radius: 12px;
  background: rgba(255,255,255,.9);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,.12);
}
.hamburger-fixed span {
  width: 24px;
  height: 3px;
  display: block;
  background: #24353a;
}

/* Hamburger inside top bar (if you use one) */
.top-bar .hamburger {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
}
.top-bar .hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text, #333);
  display: block;
}

/* Overlay behind the slide-in menu */
.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
  z-index: 1500;
}

/* Slide-in side menu */
.side-menu {
  position: fixed;
  top: 0; right: 0;
  height: 100vh;
  width: 350px;
  overflow-y: auto;
  background-color: #69c0e6;
  background-image: url('/Images/Vaiski26_Sininen_Huomaamaton_JPG.jpg');
  background-size: cover;
  background-position: center;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 1600;
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
}

.side-menu .close-btn {
  align-self: flex-end;
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
}

.side-menu .menu-logo {
  width: 100px;
  margin: 0 auto;
}

/* Links list */
.side-menu .side-nav {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin-top: 2rem;
}

/* Top-level buttons inside the panel */
.side-menu .side-nav > a {
  padding: 0.75em 1em;
  background: #2B6B80;
  color: var(--color-LuonnonValkoinen);
  border-radius: 999px;
  font-weight: bold;
  text-align: center;
}

/* Plain links (used inside submenus) */
.side-link {
  display: block;
  margin: 0.5rem 0;
  padding: 0.75em 1em;
  background: none;
  color: var(--color-LuonnonValkoinen);
  border-radius: 999px;
  text-align: center;
  font-weight: bold;
  text-decoration: none;
  transition: background 0.2s;
}

/* Expandable submenu */
.submenu {
  margin: 0.5rem 0;
  border-radius: 2rem;
  background: var(--color-LuonnonValkoinen);
  overflow: visible;
}

/* The header row (title + arrow) */
.submenu-header {
  position: relative;
  background: #2B6B80;
  border-radius: 999px;
  overflow: hidden;
  padding: 0.75em 3.5em; /* room for arrow */
  text-align: center;
}

/* Clickable title to main page */
.submenu-title {
  display: block;
  width: 100%;
  color: var(--color-LuonnonValkoinen);
  font-weight: bold;
  text-decoration: none;
}

/* Arrow button */
.submenu-toggle {
  position: absolute;
  color: var(--color-LuonnonValkoinen);
  top: 50%;
  right: 0.75em;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  transition: transform 0.2s;
}

/* Hidden by default; animated open */
.submenu-links {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateY(-0.5rem);
  transition:
    max-height 0.3s ease-in-out,
    opacity    0.3s ease,
    transform  0.3s ease;
}

.submenu-links .side-link {
  padding: 0.5em 1em;
  background: none;
  color: var(--text, var(--color-Yonsininen));
  font-weight: normal;
}

/* Open state */
.submenu.open .submenu-links {
  max-height: 500px;
  opacity: 1;
  transform: translateY(0);
}
.submenu.open .submenu-toggle {
  transform: translateY(-50%) rotate(180deg);
}

/* When menu is open */
body.menu-open .hamburger-fixed {z-index: -10;}
body.menu-open .menu-overlay { opacity: 1; visibility: visible; }
body.menu-open .side-menu    { transform: translateX(0); }
body.menu-open {
  overflow: hidden;
  touch-action: none;
}

/* Responsive width for panel */
@media (max-width: 420px) {
  .side-menu { width: 88vw; }
}