/* Shared front-end surface polish for admin, workspace, living, and panel. */
:root {
  --ui-radius-card: 14px;
  --ui-radius-control: 12px;
  --ui-line: rgba(255,255,255,.26);
  --ui-line-strong: rgba(255,255,255,.42);
  --ui-glass: rgba(255,255,255,.12);
  --ui-glass-strong: rgba(255,255,255,.22);
  --ui-shadow: 0 18px 48px rgba(31,45,78,.14);
  --ui-inset: inset 0 1px 0 rgba(255,255,255,.32);
}

body.surface-admin,
body.surface-living,
body.surface-workspace {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.surface-admin .surface-nav.sidebar,
.surface-living .surface-nav.sidebar,
.surface-workspace .surface-nav.sidebar {
  border-right-color: var(--ui-line);
  box-shadow: 16px 0 48px rgba(28,40,75,.10), var(--ui-inset);
}

.surface-admin .surface-nav .nav-item,
.surface-living .surface-nav .nav-item,
.surface-workspace .surface-nav .nav-item {
  border-radius: var(--ui-radius-control);
  font-weight: 760;
  letter-spacing: 0;
}

.surface-admin .surface-nav .nav-item.active,
.surface-living .surface-nav .nav-item.active,
.surface-workspace .surface-nav .nav-item.active {
  border-color: rgba(255,255,255,.34);
  background:
    radial-gradient(circle at 95% 5%, rgba(255,222,190,.22), transparent 44%),
    linear-gradient(135deg, rgba(255,255,255,.24), rgba(255,255,255,.08));
  box-shadow: 0 10px 28px rgba(31,45,78,.12), var(--ui-inset);
}

.surface-admin .card,
.surface-admin .api-item,
.surface-admin .runtime-section,
.surface-admin .mem-item,
.surface-admin .toolbar,
.surface-living .card,
.surface-living .pressure-card,
.surface-living .yiran-room-panel,
.surface-living .store-card,
.surface-workspace .card,
.surface-workspace .household-stat,
.surface-workspace .household-add-card,
.surface-workspace .household-item,
.surface-workspace .household-tabs,
.surface-workspace .workspace-backend-card {
  border-color: var(--ui-line);
  border-radius: var(--ui-radius-card);
  box-shadow: var(--ui-shadow), var(--ui-inset);
}

.surface-admin .btn,
.surface-living .btn,
.surface-workspace .btn,
.surface-admin input,
.surface-admin select,
.surface-admin textarea,
.surface-living input,
.surface-living select,
.surface-living textarea,
.surface-workspace input,
.surface-workspace select,
.surface-workspace textarea {
  letter-spacing: 0;
}

.surface-admin .surface-switch summary,
.surface-living .surface-switch summary,
.surface-workspace .surface-switch summary,
body.surface-panel .scene-switch summary {
  border-color: rgba(255,255,255,.72);
  box-shadow:
    0 22px 54px rgba(31,45,78,.18),
    inset 0 1px 0 rgba(255,255,255,.78),
    inset 0 -10px 18px rgba(64,91,130,.12);
}

.surface-admin .surface-switch .scene-list,
.surface-living .surface-switch .scene-list,
.surface-workspace .surface-switch .scene-list,
body.surface-panel .scene-switch .scene-list {
  border-color: rgba(255,255,255,.72);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.86), rgba(241,247,249,.68)),
    rgba(255,255,255,.62);
  box-shadow: 0 24px 58px rgba(31,45,78,.16), var(--ui-inset);
}

@media (min-width: 761px) {
  .surface-admin .surface-nav.sidebar,
  .surface-living .surface-nav.sidebar {
    width: 212px;
    padding: 20px 14px 18px;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
  }

  .surface-admin .surface-main.main,
  .surface-living .surface-main.main {
    margin-left: 212px;
    width: calc(100% - 212px);
    padding: clamp(26px, 3.2vw, 42px);
  }

  .surface-admin .surface-nav .nav-item,
  .surface-living .surface-nav .nav-item {
    min-height: 36px;
    margin-bottom: 4px;
    padding: 0 11px;
  }
}

@media (max-width: 760px) {
  body.surface-admin,
  body.surface-living,
  body.surface-workspace {
    overflow-x: hidden;
  }

  .surface-admin .surface-main.main,
  .surface-living .surface-main.main {
    width: 100%;
    margin-left: 0;
    padding: calc(18px + env(safe-area-inset-top)) 14px calc(96px + env(safe-area-inset-bottom));
  }

  .surface-admin .surface-nav.sidebar,
  .surface-living .surface-nav.sidebar {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    top: auto;
    z-index: 10010;
    width: auto;
    height: 62px;
    max-height: none;
    padding: 8px;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    overflow-x: auto;
    overflow-y: hidden;
    border: 1px solid var(--ui-line);
    border-radius: 18px;
    background:
      linear-gradient(135deg, rgba(255,255,255,.22), rgba(255,255,255,.08)),
      rgba(87,99,137,.34);
    backdrop-filter: blur(26px) saturate(1.28);
    -webkit-backdrop-filter: blur(26px) saturate(1.28);
  }

  .surface-admin .surface-cover,
  .surface-living .living-cover,
  .surface-admin .status-badge,
  .surface-living .status-badge {
    display: none;
  }

  .surface-admin .surface-nav .nav-item,
  .surface-living .surface-nav .nav-item {
    flex: 0 0 58px;
    min-width: 58px;
    max-width: 58px;
    min-height: 44px;
    margin: 0;
    padding: 0 6px;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
    font-size: 9px;
    line-height: 1.1;
    white-space: nowrap;
  }

  .surface-admin .surface-nav .nav-item svg,
  .surface-living .surface-nav .nav-item svg {
    width: 17px;
    height: 17px;
  }

  .surface-admin .surface-nav .nav-item span,
  .surface-living .surface-nav .nav-item span {
    display: block;
    max-width: 50px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .surface-admin .surface-switch,
  .surface-living .surface-switch,
  .surface-workspace .surface-switch,
  body.surface-panel .scene-switch {
    right: calc(14px + env(safe-area-inset-right));
    bottom: calc(82px + env(safe-area-inset-bottom));
  }
}

body.surface-panel {
  --ui-panel-bg:
    radial-gradient(circle at 16% 12%, rgba(255,248,239,.68), transparent 32rem),
    radial-gradient(circle at 78% 28%, rgba(204,232,235,.52), transparent 34rem),
    linear-gradient(145deg, rgba(255,248,239,.92), rgba(219,242,241,.82) 42%, rgba(191,229,241,.78) 100%);
  background: var(--ui-panel-bg);
}

body.surface-panel .panel,
body.surface-panel .gift-card,
body.surface-panel .module,
body.surface-panel .settings-drawer,
body.surface-panel .chat-head,
body.surface-panel .chat-compose {
  border-color: var(--ui-line-strong);
  box-shadow: var(--ui-shadow), var(--ui-inset);
}

body.surface-panel .btn,
body.surface-panel input,
body.surface-panel select,
body.surface-panel textarea {
  letter-spacing: 0;
}

body.surface-panel .topbar {
  max-width: 1480px;
  width: 100%;
  margin: 0 auto;
}

body.surface-panel .panel.view:not(.active) {
  display: none;
}

@media (min-width: 768px) {
  body.surface-panel .main {
    width: min(100%, 1480px);
    margin: 0 auto;
    padding: calc(28px + env(safe-area-inset-top)) clamp(24px, 3vw, 42px) 32px;
  }

  body.surface-panel .panel:not(.chat-view) {
    border-radius: var(--ui-radius-card);
  }
}

/* Shared collapsible rail for admin, workspace, and living shells. */
@media (min-width: 761px) {
  body.surface-admin,
  body.surface-living,
  body.surface-workspace {
    --surface-rail-collapsed: 58px;
    --surface-rail-expanded: 212px;
  }

  .surface-admin .surface-nav.sidebar,
  .surface-living .surface-nav.sidebar,
  .surface-workspace .surface-nav.sidebar {
    position: fixed !important;
    z-index: 10020 !important;
    top: 0 !important;
    right: auto !important;
    bottom: 0 !important;
    left: 0 !important;
    width: var(--surface-rail-collapsed) !important;
    height: 100dvh !important;
    min-height: 0 !important;
    max-height: none !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 6px !important;
    padding: 16px 9px !important;
    border-radius: 0 !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    scrollbar-width: none !important;
    transition:
      width .22s ease,
      padding .22s ease,
      background .22s ease,
      box-shadow .22s ease;
  }

  .surface-admin .surface-nav.sidebar:hover,
  .surface-admin .surface-nav.sidebar:focus-within,
  .surface-living .surface-nav.sidebar:hover,
  .surface-living .surface-nav.sidebar:focus-within,
  .surface-workspace .surface-nav.sidebar:hover,
  .surface-workspace .surface-nav.sidebar:focus-within {
    width: var(--surface-rail-expanded) !important;
    padding: 20px 14px 18px !important;
    scrollbar-width: thin !important;
    box-shadow: 18px 0 54px rgba(28,40,75,.18), var(--ui-inset);
  }

  .surface-admin .surface-main.main,
  .surface-living .surface-main.main,
  .surface-workspace .surface-main.main {
    margin-left: var(--surface-rail-collapsed) !important;
    width: calc(100% - var(--surface-rail-collapsed)) !important;
  }

  .surface-living #page-yiran-status {
    left: calc(var(--surface-rail-collapsed) + clamp(32px, 6vw, 88px)) !important;
  }

  .surface-admin .surface-cover,
  .surface-living .living-cover,
  .surface-workspace .surface-cover,
  .surface-workspace .workspace-nav-section > span,
  .surface-admin .surface-nav .status-badge,
  .surface-living .surface-nav .status-badge,
  .surface-workspace .surface-nav .status-badge {
    max-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
    opacity: 0 !important;
    overflow: hidden !important;
    pointer-events: none !important;
    transition: opacity .16s ease, max-height .22s ease, margin .22s ease, padding .22s ease;
  }

  .surface-admin .surface-nav.sidebar:hover .surface-cover,
  .surface-admin .surface-nav.sidebar:focus-within .surface-cover,
  .surface-living .surface-nav.sidebar:hover .living-cover,
  .surface-living .surface-nav.sidebar:focus-within .living-cover,
  .surface-workspace .surface-nav.sidebar:hover .surface-cover,
  .surface-workspace .surface-nav.sidebar:focus-within .surface-cover {
    max-height: 128px !important;
    margin: 0 0 12px !important;
    padding: 0 0 14px !important;
    border-bottom: 1px solid rgba(142,62,78,.14) !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }

  .surface-workspace .surface-nav.sidebar:hover .workspace-nav-section > span,
  .surface-workspace .surface-nav.sidebar:focus-within .workspace-nav-section > span {
    max-height: 24px !important;
    margin: 8px 0 2px !important;
    opacity: 1 !important;
  }

  .surface-admin .surface-nav.sidebar:hover .status-badge,
  .surface-admin .surface-nav.sidebar:focus-within .status-badge,
  .surface-living .surface-nav.sidebar:hover .status-badge,
  .surface-living .surface-nav.sidebar:focus-within .status-badge,
  .surface-workspace .surface-nav.sidebar:hover .status-badge,
  .surface-workspace .surface-nav.sidebar:focus-within .status-badge {
    max-height: 40px !important;
    margin-top: auto !important;
    padding: 0 11px !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }

  .surface-workspace .workspace-nav-section {
    display: flex !important;
    flex-direction: column !important;
    gap: 6px !important;
  }

  .surface-workspace .workspace-sidebar-spacer {
    min-height: 8px !important;
  }

  .surface-admin .surface-nav .nav-item,
  .surface-living .surface-nav .nav-item,
  .surface-workspace .surface-nav .nav-item {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 40px !important;
    margin: 0 !important;
    padding: 0 !important;
    justify-content: center !important;
    gap: 0 !important;
    overflow: hidden !important;
  }

  .surface-admin .surface-nav.sidebar:hover .nav-item,
  .surface-admin .surface-nav.sidebar:focus-within .nav-item,
  .surface-living .surface-nav.sidebar:hover .nav-item,
  .surface-living .surface-nav.sidebar:focus-within .nav-item,
  .surface-workspace .surface-nav.sidebar:hover .nav-item,
  .surface-workspace .surface-nav.sidebar:focus-within .nav-item {
    padding: 0 11px !important;
    justify-content: flex-start !important;
    gap: 10px !important;
  }

  .surface-admin .surface-nav .nav-item svg,
  .surface-living .surface-nav .nav-item svg,
  .surface-workspace .surface-nav .nav-item svg {
    flex: 0 0 auto !important;
    width: 18px !important;
    height: 18px !important;
  }

  .surface-admin .surface-nav .nav-item span,
  .surface-living .surface-nav .nav-item span,
  .surface-workspace .surface-nav .nav-item span {
    display: inline-block !important;
    max-width: 0 !important;
    opacity: 0 !important;
    overflow: hidden !important;
    white-space: nowrap !important;
    transition: max-width .20s ease, opacity .16s ease;
  }

  .surface-admin .surface-nav.sidebar:hover .nav-item span,
  .surface-admin .surface-nav.sidebar:focus-within .nav-item span,
  .surface-living .surface-nav.sidebar:hover .nav-item span,
  .surface-living .surface-nav.sidebar:focus-within .nav-item span,
  .surface-workspace .surface-nav.sidebar:hover .nav-item span,
  .surface-workspace .surface-nav.sidebar:focus-within .nav-item span {
    max-width: 142px !important;
    opacity: 1 !important;
  }
}