:root {
  
  --ddm-bar-bg:   rgb(249 249 249 / 0.82);  
  --ddm-sep:      rgb(60 60 67 / 0.29);     
  --ddm-fill:     rgb(120 120 128 / 0.12);  
  


  --ddm-inactive: #6B7280;
  --ddm-badge:    #FF3B30;                  
  --ddm-accent:   var(--pink-500);          
  --ddm-bar-h:    76px;                     
  --ddm-sub-h:    44px;                     
}


.ddmnav {
  display: none;                 
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;                   
  height: var(--ddm-bar-h);
  padding-bottom: env(safe-area-inset-bottom, 8px);
  background: var(--ddm-bar-bg);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-top: 0.5px solid var(--ddm-sep);
}

@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .ddmnav { background: var(--paper); }
}

.ddmnav-item {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-width: 0;
  min-height: 44px;              
  padding: 7px 2px 0;
  text-decoration: none;
  color: var(--ddm-inactive);
  

  font-size: 0.75rem;
  font-weight: var(--weight-semibold);
  line-height: 1.2;
  letter-spacing: 0;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.16s ease;
}
.ddmnav-item svg { width: 25px; height: 25px; flex: none; }
.ddmnav-item-label {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ddmnav-item:active { opacity: 0.55; }
.ddmnav-item:focus-visible {
  outline: 2px solid var(--ddm-accent);
  outline-offset: -3px;
  border-radius: var(--radius-base);
}
.ddmnav-item--active {
  color: var(--ddm-accent);
  font-weight: var(--weight-bold);
}



.ddmnav-ic-on  { display: none; }
.ddmnav-item--active .ddmnav-ic-on  { display: block; }
.ddmnav-item--active .ddmnav-ic-off { display: none; }


.ddmnav-badge {
  position: absolute;
  top: 3px;
  left: 50%;
  margin-left: 3px;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  border-radius: var(--radius-base);
  background: var(--ddm-badge);
  color: var(--paper);
  font-size: 0.6rem;
  font-weight: var(--weight-bold);
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-variant-numeric: tabular-nums;
  box-shadow: 0 0 0 2px var(--ddm-bar-bg);
}


.ddmsub-bar {
  display: none;                 
  position: sticky;
  top: 0;
  z-index: 45;                   
  height: var(--ddm-sub-h);
  align-items: stretch;
  background: var(--ddm-bar-bg);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 0.5px solid var(--ddm-sep);
}
@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .ddmsub-bar { background: var(--paper); }
}




.ddmsub-back {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 0 10px 0 12px;
  color: var(--ddm-accent);
  font-size: 0.8rem;
  font-weight: var(--weight-semibold);
  text-decoration: none;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}
.ddmsub-back:active { opacity: 0.5; }
.ddmsub-back:focus-visible { outline: 2px solid var(--ddm-accent); outline-offset: -2px; }
.ddmsub-back svg { margin-right: -1px; }

.ddmsub {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 14px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.ddmsub::-webkit-scrollbar { display: none; }

.ddmsub-back + .ddmsub { padding-left: 4px; }

.ddmsub-item {
  flex: none;
  





  min-width: calc(var(--ddmsub-ch, 4) * 1em + 24px);
  text-align: center;
  padding: 6px 12px;
  border-radius: var(--radius-base);   
  background: var(--ddm-fill);
  color: var(--ink-900);
  font-size: 0.8rem;
  font-weight: var(--weight-medium);
  letter-spacing: -0.01em;
  white-space: nowrap;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.16s ease, color 0.16s ease;
}
.ddmsub-item:active { opacity: 0.6; }
.ddmsub-item:focus-visible { outline: 2px solid var(--ddm-accent); outline-offset: 2px; }
.ddmsub-item--active {
  background: var(--ddm-accent);
  color: var(--paper);
  font-weight: var(--weight-semibold);
}




.ddmsub-item--dot { position: relative; }
.ddmsub-dot {
  position: absolute;
  top: 3px;
  right: 4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;          
  background: var(--ddm-badge);
}
.ddmsub-item--active .ddmsub-dot { background: var(--paper); }


@media (max-width: 1199.98px) {
  .ddmnav { display: flex; }
  .ddmsub-bar { display: flex; }

  

  .ddnav { display: none; }

  

  body { padding-bottom: calc(var(--ddm-bar-h) + env(safe-area-inset-bottom, 8px)); }

  










  body .pwa-install-banner,
  body .inv-batch-bar {
    bottom: calc(var(--ddm-bar-h) + env(safe-area-inset-bottom, 8px));
  }
}








.dd-install-card { display: none; }

@media (max-width: 1199.98px) {
  .dd-install-card {
    display: block;
    background: var(--paper);
    border: var(--border-width-thin, 1px) solid var(--ink-100);
    border-radius: var(--radius-lg);
    padding: 14px 16px;
    margin-bottom: 16px;
  }
  .dd-install-head {
    display: flex; align-items: center; gap: 7px;
    font-size: 0.92rem; font-weight: var(--weight-bold);
    color: var(--ink-900); margin-bottom: 6px;
  }
  .dd-install-head svg { color: var(--ddm-accent); flex: none; }
  .dd-install-desc {
    font-size: 0.8rem; line-height: 1.55; color: var(--ink-400);
    margin: 0 0 12px;
  }
  .dd-install-steps { display: flex; flex-direction: column; gap: 7px; }
  .dd-install-step {
    display: flex; align-items: center; gap: 9px;
    font-size: 0.79rem; color: var(--ink-600); line-height: 1.4;
  }
  .dd-install-os {
    flex: none; min-width: 62px;
    padding: 3px 8px; border-radius: var(--radius-base);
    background: var(--ddm-fill); color: var(--ink-900);
    font-size: 0.72rem; font-weight: var(--weight-bold); text-align: center;
  }
}


@media (display-mode: standalone) {
  .dd-install-card { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .ddmnav-item, .ddmsub-item { transition: none; }
  .ddmsub { scroll-behavior: auto; }
}