.mobile-drawer {
  padding: 0;
  border: none;
  background: var(--color-surface);
  color: var(--color-ink);
  width: min(360px, 90vw);
  height: 100dvh;
  max-height: 100dvh;
  margin: 0;
  inset: 0 auto 0 0;
  box-shadow: var(--sh-3);
  overflow: hidden;
}

.mobile-drawer::backdrop {
  background: rgba(11, 18, 32, 0.56);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.mobile-drawer[open] {
  animation: drawer-in var(--dur-base) var(--ease-out);
}

@keyframes drawer-in {
  from { transform: translateX(-100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

.mobile-drawer__inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-4);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-surface);
  z-index: 1;
}

.mobile-drawer__close {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink);
  border-radius: var(--r-sm);
}

.mobile-drawer__close:hover { background: var(--color-canvas-2); }

.mobile-drawer__close .icon {
  width: 20px;
  height: 20px;
}

.mobile-drawer nav ul {
  display: flex;
  flex-direction: column;
}

.mobile-drawer nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4);
  color: var(--color-ink);
  font-weight: var(--fw-medium);
  font-size: var(--fs-18);
  border-bottom: 1px solid var(--color-border);
}

.mobile-drawer nav a:hover {
  background: var(--color-canvas-2);
  color: var(--color-primary);
}

.mobile-drawer details {
  border-bottom: 1px solid var(--color-border);
}

.mobile-drawer details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4);
  font-weight: var(--fw-medium);
  font-size: var(--fs-18);
  cursor: pointer;
  list-style: none;
  min-height: 56px;
}

.mobile-drawer details summary::-webkit-details-marker { display: none; }

.mobile-drawer details summary::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform var(--dur-fast) var(--ease-out);
}

.mobile-drawer details[open] summary::after {
  transform: rotate(45deg);
}

.mobile-drawer details ul {
  padding-inline: var(--sp-4);
  padding-bottom: var(--sp-2);
}

.mobile-drawer details ul a {
  padding: var(--sp-3);
  font-size: var(--fs-16);
  border-bottom: none;
  color: var(--color-ink-muted);
  border-radius: var(--r-sm);
}

.mobile-drawer__footer {
  margin-top: auto;
  padding: var(--sp-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  background: var(--color-surface);
}

.mobile-search-overlay {
  padding: 0;
  border: none;
  background: var(--color-surface);
  width: 100vw;
  height: 100dvh;
  max-width: 100vw;
  max-height: 100dvh;
  margin: 0;
  inset: 0;
}

.mobile-search-overlay::backdrop {
  background: rgba(11, 18, 32, 0.4);
}

.mobile-search-overlay__inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: var(--sp-4);
  gap: var(--sp-4);
}

.mobile-search-overlay__header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.mobile-search-overlay input {
  flex: 1;
  padding: var(--sp-4);
  font-size: var(--fs-18);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--r-md);
  min-height: 56px;
}

.mobile-search-overlay input:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: var(--sh-glow-primary);
}