/* One fixed application shell and one content scroller. No viewport-wide form overflow. */
:root {
  --app-height: 100dvh;
  --app-inset-top: max(env(safe-area-inset-top, 0px), var(--tg-safe-area-inset-top, 0px));
  --app-inset-bottom: max(env(safe-area-inset-bottom, 0px), var(--tg-safe-area-inset-bottom, 0px));
  --app-inset-left: max(env(safe-area-inset-left, 0px), var(--tg-safe-area-inset-left, 0px));
  --app-inset-right: max(env(safe-area-inset-right, 0px), var(--tg-safe-area-inset-right, 0px));
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
html, body { width: 100%; height: 100%; overflow: hidden; overscroll-behavior: none; }
body { position: fixed; inset: 0; height: var(--app-height); }
.app-shell { height: var(--app-height); min-height: 0; }
button { touch-action: manipulation; }
#admin-panel {
  inset: 0 0 auto;
  width: 100%; height: var(--app-height);
  padding: calc(var(--app-inset-top) + var(--tg-content-safe-area-inset-top, 0px))
    calc(var(--app-inset-right) + var(--tg-content-safe-area-inset-right, 0px))
    calc(var(--app-inset-bottom) + var(--tg-content-safe-area-inset-bottom, 0px))
    calc(var(--app-inset-left) + var(--tg-content-safe-area-inset-left, 0px));
  overflow: hidden;
  grid-template-columns: 170px minmax(0, 1fr);
  grid-template-rows: auto minmax(0, 1fr);
  gap: 0; align-content: stretch;
  isolation: isolate;
}
#admin-panel .admin-header {
  grid-row: 1; grid-column: 1 / -1;
  padding: 17px 24px; margin: 0;
  border-bottom: 1px solid var(--line);
  background: #111419;
  user-select: none;
}
#admin-panel .admin-header h1 { font-size: 25px; margin-top: 4px; }
#admin-panel .admin-header .section-label { font-size: 10px; letter-spacing: .09em; }
#admin-panel .admin-tabs {
  grid-row: 2; grid-column: 1;
  position: static; min-height: 0; min-width: 0;
  align-self: stretch; padding: 20px 12px; margin: 0;
  overflow-x: hidden; overflow-y: auto;
  overscroll-behavior: contain;
  background: #111419;
  user-select: none;
}
#admin-panel .admin-tabs .admin-button { min-height: 48px; flex-shrink: 0; }
.admin-content {
  grid-row: 2; grid-column: 2; min-height: 0; min-width: 0;
  overflow-x: hidden; overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y pinch-zoom;
  scroll-padding: 20px;
  padding: 24px clamp(18px, 3vw, 48px) 32px;
}
.admin-content > section { min-width: 0; }
.admin-content .admin-filters { min-width: 0; }
.admin-content .admin-filters label { min-width: min(180px, 100%); max-width: 100%; }
.admin-content input, .admin-content select, .model-dialog input, .model-dialog select { min-width: 0; font-size: 16px; }
.admin-content .admin-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.admin-content .admin-stats > div { min-width: 0; overflow-wrap: anywhere; }
#admin-panel[data-page="vpn"] .admin-stats { display: none; }
#admin-panel[data-page="vpn"] #vpn-create { display: grid; grid-template-columns: minmax(0, 1fr); gap: 13px; }
#admin-panel #vpn-create label { min-width: 0; }
#admin-panel #vpn-create-submit { width: 100%; min-height: 48px; margin: 0; }
.admin-content .admin-button { max-width: 100%; min-height: 44px; overflow-wrap: anywhere; }
.admin-content .admin-user-toolbar { flex-wrap: wrap; align-items: flex-start; }
.admin-content .admin-user-toolbar > div { min-width: 0; flex: 1 1 200px; }
.admin-content .admin-card { min-width: 0; overflow-wrap: anywhere; }
.admin-content .vpn-capacity { flex-wrap: wrap; }
.model-dialog { max-height: calc(var(--app-height) - 32px); overscroll-behavior: contain; }
.agent-panel { bottom: auto; height: var(--app-height); overscroll-behavior: contain; }
@media (max-width: 600px) {
  #admin-panel { grid-template-columns: 88px minmax(0, 1fr); }
  #admin-panel .admin-header { padding: 13px 17px; }
  #admin-panel .admin-header h1 { font-size: 24px; }
  #admin-panel .admin-tabs { padding: 16px 5px; gap: 8px; }
  #admin-panel .admin-tabs .admin-button { text-align: center; padding: 12px 2px; font-size: 11px; border-color: transparent; border-radius: 11px; background: transparent; }
  #admin-panel .admin-tabs .admin-button.selected { background: #a9824d1f; border-color: #a9824d66; }
  .admin-content { padding: 16px 14px 24px; scrollbar-width: none; }
  .admin-content::-webkit-scrollbar { display: none; }
  .admin-content .admin-card { padding: 14px; }
  .admin-content .admin-filters { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .admin-content .admin-filters label { min-width: 0; }
  .admin-content .admin-stats { grid-template-columns: minmax(0, 1fr); gap: 7px; margin-bottom: 18px; }
  .admin-content .admin-stats > div { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 12px; }
  .admin-content .admin-stats strong { font-size: 19px; }
  .admin-content .admin-stats span { margin: 0; font-size: 11px; text-align: right; }
  .admin-content .admin-user-toolbar h2, .admin-content .admin-add-heading { margin: 0 0 10px; font-size: 21px; }
  .admin-content .admin-user-toolbar { gap: 3px; }
  .admin-content .admin-user-toolbar .admin-button { font-size: 12px; padding: 9px 12px; }
  .admin-content .admin-hint { font-size: 12px; line-height: 1.6; }
  .admin-content .vpn-capacity { padding: 17px 14px; margin: 15px 0; }
  .admin-content .vpn-capacity strong { font-size: 38px; }
  .admin-content .vpn-warning { font-size: 11px; margin: 12px 0 22px; color: var(--muted); }
  .admin-content .rental-plans { grid-template-columns: minmax(0, 1fr); }
  .admin-content .rental-form input, .admin-content .rental-form select { width: 100%; }
}
@media (max-width: 350px) {
  #admin-panel { grid-template-columns: 82px minmax(0, 1fr); }
  .admin-content { padding: 14px 10px 20px; }
  .admin-content .admin-card { padding: 11px; }
  .admin-content .admin-button { font-size: 12px; padding: 11px 8px; }
}
@media (max-height: 480px) and (max-width: 900px) {
  #admin-panel .admin-header { padding-top: 7px; padding-bottom: 7px; }
  #admin-panel .admin-header .section-label { display: none; }
  #admin-panel .admin-header h1 { margin: 0; font-size: 21px; }
  #admin-panel .admin-tabs { gap: 5px; padding-top: 10px; padding-bottom: 10px; }
  #admin-panel .admin-tabs .admin-button { min-height: 44px; padding-top: 8px; padding-bottom: 8px; }
}