/* 漠翠进销存 v3.19 — iPhone/PWA interaction layer */
:root{
  --ios-top:env(safe-area-inset-top,0px);
  --ios-bottom:env(safe-area-inset-bottom,0px);
  --ios-nav-h:58px;
  --ios-tap:44px;
}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;overscroll-behavior-y:none}
body{-webkit-tap-highlight-color:transparent;overscroll-behavior-y:none}
button,a,.clickable,.nav-item,.workflow-card{touch-action:manipulation}
button,.btn,.icon-btn,.page-back,.modal-close,.nav-item{min-height:var(--ios-tap)}
input,textarea,select,.input,.mini-input,.filter-select{font-size:16px!important}
input,textarea,select{-webkit-appearance:none;appearance:none}
textarea{resize:vertical;min-height:88px}

/* Header: safe-area aware, less jumpy while scrolling */
.topbar{
  padding-top:max(8px,var(--ios-top))!important;
  min-height:calc(56px + var(--ios-top));
  position:sticky!important;top:0!important;z-index:80!important;
  backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);
}
.top-title-group,.top-actions{min-width:0}
.brand{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.subtitle{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:58vw}
.cloud-badge{white-space:nowrap}

/* Main content never hides behind Home Indicator / bottom nav */
.main{
  padding-bottom:calc(var(--ios-nav-h) + var(--ios-bottom) + 22px)!important;
  scroll-padding-top:calc(70px + var(--ios-top));
  scroll-padding-bottom:calc(var(--ios-nav-h) + var(--ios-bottom) + 28px);
}

/* iOS tab bar */
.bottom-nav{
  min-height:calc(var(--ios-nav-h) + var(--ios-bottom))!important;
  padding-bottom:var(--ios-bottom)!important;
  backdrop-filter:saturate(180%) blur(22px);-webkit-backdrop-filter:saturate(180%) blur(22px);
  transform:translateZ(0);
}
.nav-item{padding:5px 4px 4px!important}
.nav-item span{min-height:25px;display:flex;align-items:center;justify-content:center}
.nav-item img{width:22px;height:22px;object-fit:contain}
.nav-item b{font-size:10.5px;line-height:14px}

/* Tap targets + density */
.btn{min-height:44px;padding:10px 14px}
.btn.small{min-height:36px}
.icon-btn,.page-back,.modal-close{min-width:44px}
.list-item{min-height:64px}
.workflow-card{min-height:82px}
.segment{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.segment::-webkit-scrollbar{display:none}
.segment button{min-height:38px;white-space:nowrap}
.toolbar{gap:8px}
.search input{min-height:44px}
.form-row{gap:10px}

/* Bottom-sheet behavior on iPhone; full modal remains full-screen */
.modal-backdrop{
  align-items:flex-end!important;
  padding:0!important;
  overscroll-behavior:contain;
}
.modal:not(.full){
  width:100%!important;max-width:680px!important;
  max-height:min(88dvh,760px)!important;
  border-radius:20px 20px 0 0!important;
  padding-bottom:var(--ios-bottom)!important;
  box-shadow:0 -12px 40px rgba(16,24,40,.14);
}
.modal.full{
  height:100dvh!important;max-height:100dvh!important;
  padding-top:var(--ios-top)!important;padding-bottom:var(--ios-bottom)!important;
}
.modal-head{
  position:sticky;top:0;z-index:3;
  min-height:54px;
  backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);
}
.modal-body{
  -webkit-overflow-scrolling:touch;
  overscroll-behavior:contain;
  padding-bottom:calc(18px + var(--ios-bottom))!important;
  scroll-padding-bottom:calc(110px + var(--ios-bottom));
}
.sticky-actions{
  position:sticky!important;bottom:0!important;z-index:4;
  padding-bottom:max(10px,var(--ios-bottom))!important;
  backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);
}

/* Keyboard mode: remove bottom tab bar so focused fields/actions stay usable */
html.ios-keyboard-open .bottom-nav{transform:translateY(110%);pointer-events:none}
html.ios-keyboard-open .main{padding-bottom:24px!important}
html.ios-keyboard-open .modal:not(.full){max-height:calc(var(--vvh,100dvh) - 8px)!important}
html.ios-keyboard-open .sticky-actions{bottom:0!important}

/* Press feedback without slow animation */
@media (hover:none) and (pointer:coarse){
  .btn:active,.nav-item:active,.clickable:active,.workflow-card:active,.icon-btn:active{transform:scale(.985);opacity:.78}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}
}
@media (max-width:390px){
  .main{padding-left:12px!important;padding-right:12px!important}
  .grid-3{gap:7px!important}
  .metric.compact{padding:10px!important}
  .toolbar{flex-wrap:wrap}
  .toolbar .search{min-width:100%;flex:1 0 100%}
}