.settings-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 300px;
  max-width: 92vw;
  background: #ffffff;
  color: #333333;
  border-right: 1px solid #e5e5e5;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
  transform: translateX(-104%);
  transition: transform 0.28s ease;
  z-index: 1550;
  padding: 60px 14px 20px;
  box-sizing: border-box;
  overflow-y: auto;
  font: 14px/1.45 system-ui, -apple-system, 'Segoe UI', Roboto, Arial,
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scrollbar-width: thin;
  scrollbar-color: #cccccc transparent;
}

.settings-menu::-webkit-scrollbar {
  width: 8px;
}

.settings-menu::-webkit-scrollbar-thumb {
  background: #cccccc;
  border-radius: 8px;
}

.settings-menu::-webkit-scrollbar-track {
  background: transparent;
}

.settings-menu.open {
  transform: translateX(0);
}

.settings-menu__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
  z-index: 1500;
}

.settings-menu__overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.settings-menu__toggle {
  position: fixed;
  top: 12px;
  left: 12px;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: #007bff;
  border: 1px solid #0056b3;
  border-radius: 6px;
  padding: 0;
  cursor: pointer;
  z-index: 1600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.settings-menu__close {
  position: fixed;
  top: 12px;
  right: 12px;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: #007bff;
  border: 1px solid #0056b3;
  border-radius: 6px;
  padding: 0;
  cursor: pointer;
  z-index: 1600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.settings-menu__close:hover {
  background: #0056b3;
}

.settings-menu__close:focus-visible {
  outline: 2px solid #0056b3;
  outline-offset: 2px;
}

.settings-menu__close i {
  color: #fff;
  font-size: 20px;
}

.settings-menu__toggle--hidden {
  display: none;
}

.settings-menu__toggle:hover {
  background: #0056b3;
}

.settings-menu__toggle:focus-visible {
  outline: 2px solid #0056b3;
  outline-offset: 2px;
}

.settings-menu__toggle i {
  color: #fff;
  font-size: 20px;
}

.settings-menu__section {
  margin-top: 14px;
  padding-top: 8px;
  border-top: 1px solid #e5e5e5;
}

.settings-menu__section:first-child {
  border-top: 0;
  padding-top: 0;
  margin-top: 0;
}

.settings-menu__section h3 {
  margin: 0 0 8px;
  font-size: 12px;
  line-height: 1.3;
  color: #666666;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.settings-menu__section > ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: none;
  opacity: 0;
  transition: opacity 0.28s ease;
}

.settings-menu__section.open > ul {
  display: block;
  opacity: 1;
}

.settings-menu__section li {
  border-radius: 4px;
  line-height: 1.35;
  user-select: none;
  transition: background-color 0.15s ease, color 0.15s ease;
  cursor: pointer;
  padding: 8px 10px;
}

.settings-menu__section li > a {
  display: block;
  color: inherit;
  text-decoration: none;
  margin: -8px -10px;
  padding: 8px 10px;
  border-radius: 4px;
}

.settings-menu__section li > a:hover {
  background: #f9f9f9;
}
.settings-menu__section li > a:active {
  background: #e5e5e5;
}

.settings-menu__section li > a:focus-visible,
.settings-menu__section li:focus-visible {
  outline: 2px solid #0056b3;
  outline-offset: 2px;
}

.settings-menu__section li:hover {
  background: #f9f9f9;
}

.settings-menu__section li:active {
  background: #e5e5e5;
}

.settings-menu__item--has-children {
  position: relative;
}

.settings-menu__item--has-children > .settings-menu__expand {
  background: none;
  border: none;
  margin-left: 6px;
  padding: 0;
  color: inherit;
  cursor: pointer;
}

.settings-menu__item--has-children > .settings-menu__expand i {
  transition: transform 0.2s ease;
}

.settings-menu__item--has-children.open > .settings-menu__expand i {
  transform: rotate(90deg);
}

.settings-menu__submenu {
  list-style: none;
  padding-left: 14px;
  margin: 6px 0 0;
  display: none;
  opacity: 0;
  transition: opacity 0.28s ease;
}

.settings-menu__item--has-children:hover > .settings-menu__submenu,
.settings-menu__item--has-children.open > .settings-menu__submenu {
  display: block;
  opacity: 1;
}

@media (max-width: 992px) {
  .settings-menu {
    width: 280px;
  }
}
@media (max-width: 768px) {
  .settings-menu {
    width: 86vw;
    max-width: none;
    border-right: 0;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.18);
    padding-left: calc(14px + env(safe-area-inset-left, 0px));
    padding-bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  }
  .settings-menu__toggle {
    top: 10px;
    left: 10px;
    width: 44px;
    height: 44px;
  }
  .settings-menu__toggle i {
    font-size: 22px;
  }
  .settings-menu__close {
    top: 10px;
    right: 10px;
    width: 44px;
    height: 44px;
  }
  .settings-menu__close i {
    font-size: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .settings-menu,
  .settings-menu__overlay {
    transition: none;
  }
}

@media print {
  .settings-menu,
  .settings-menu__overlay,
  .settings-menu__toggle,
  .settings-menu__close {
    display: none !important;
  }
}
