:root{
  --app-header-h: 58px;
  --app-tabbar-h: 66px;
  --app-radius: 16px;
  --app-transition: 200ms ease;
}

/* База */
html, body { height: 100%; }
.app-body {
  background: #f7f8fb;
  color: #1c1f24;
  -webkit-tap-highlight-color: transparent;
}

/* Безопасно скрытый file-input (не display:none) */
.file-input-visually-hidden{
  position:absolute;
  left:-9999px;
  width:0.1px;
  height:0.1px;
  opacity:0;
  overflow:hidden;
  pointer-events:none;
}

/* Верхняя панель */
.app-header{
  position: sticky;
  top: 0;
  z-index: 1020;
  height: var(--app-header-h);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  transition: background var(--app-transition), box-shadow var(--app-transition);
}
.app-header .container-fluid{ height: 100%; }
.app-icon-btn{
  border-radius: 12px;
  transition: transform var(--app-transition), background var(--app-transition);
}
.app-icon-btn:active { transform: scale(0.96); background: rgba(0,0,0,0.03); }

/* Прокручиваемая область */
.app-main{
  min-height: calc(100dvh - var(--app-header-h) - var(--app-tabbar-h));
  padding-top: .25rem;
  padding-bottom: 1rem;
}

/* Карточки (заглушки) */
.deal-card{
  background: #ffffff;
  border: 1px solid #eef0f3;
  border-radius: var(--app-radius);
  padding: 14px 14px;
  margin-bottom: 12px;
  box-shadow: 0 1px 1px rgba(0,0,0,0.02);
  transition: transform var(--app-transition), box-shadow var(--app-transition), border-color var(--app-transition);
}
.deal-card:hover{
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(16,24,40,0.06);
  border-color: #e5e7eb;
}
.deal-chip{
  font-size: .78rem;
  padding: .35rem .6rem;
  border-radius: 999px;
  background: #f1f5ff;
  color: #2b59ff;
}

/* Нижнее меню */
.app-tabbar{
  position: sticky;
  bottom: 0;
  z-index: 1020;
  height: var(--app-tabbar-h);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
}
.tab-link{
  height: var(--app-tabbar-h);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .25rem;
  text-decoration: none;
  color: #6c727f;
  font-weight: 600;
  border-radius: 12px;
  transition: color var(--app-transition), transform var(--app-transition), background var(--app-transition);
}
.tab-link i{ font-size: 1.2rem; }
.tab-link.active{
  color: #0d6efd;
  background: rgba(13,110,253,0.06);
}
.tab-link:active{ transform: scale(0.98); }

/* Утилиты */
.text-truncate-2{
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Малые устройства — компактность */
@media (max-width: 360px){
  :root{
    --app-header-h: 54px;
    --app-tabbar-h: 62px;
  }
}