.inbox-trigger {
  position: relative;
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--th-border);
  border-radius: 8px;
  background: var(--th-surface-subtle);
  color: var(--th-text-secondary);
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.inbox-trigger:hover,
.inbox-trigger:focus-visible {
  border-color: var(--th-border-top);
  background: var(--th-surface-muted);
  color: var(--th-text);
  outline: none;
}

.inbox-unread-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  border: 2px solid var(--th-bg-2);
  border-radius: 9px;
  background: var(--th-danger);
  color: #fff;
  font: 700 10px/14px Inter, system-ui, sans-serif;
  text-align: center;
}

.inbox-layer {
  position: fixed;
  inset: 0;
  z-index: 80;
  visibility: hidden;
  background: transparent;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, visibility 180ms ease;
}

.inbox-layer.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.inbox-drawer {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  width: min(430px, 100vw);
  height: 100dvh;
  flex-direction: column;
  border-left: 1px solid var(--th-border);
  background: var(--th-bg-2);
  color: var(--th-text);
  box-shadow: -24px 0 64px color-mix(in srgb, var(--th-bg) 78%, transparent);
  transform: translateX(100%);
  transition: transform 220ms cubic-bezier(.22, 1, .36, 1);
}

.inbox-layer.is-open .inbox-drawer { transform: translateX(0); }

.inbox-drawer-header,
.inbox-drawer-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px;
  border-bottom: 1px solid var(--th-border);
}

.inbox-drawer-heading { min-width: 0; flex: 1; }
.inbox-drawer-heading h2 { margin: 0; color: var(--th-text); font-size: 16px; font-weight: 700; letter-spacing: 0; }
.inbox-drawer-heading p { margin: 3px 0 0; color: var(--th-text-muted); font-size: 12px; }

.inbox-icon-button {
  display: inline-flex;
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--th-border);
  border-radius: 8px;
  background: var(--th-surface-subtle);
  color: var(--th-text-secondary);
}

.inbox-icon-button:hover,
.inbox-icon-button:focus-visible { background: var(--th-surface-muted); color: var(--th-text); outline: none; }

.inbox-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--th-border);
  border-radius: 8px;
  background: var(--th-surface-subtle);
}

.inbox-tab {
  min-height: 30px;
  padding: 0 12px;
  border-radius: 6px;
  color: var(--th-text-muted);
  font-size: 12px;
  font-weight: 600;
}

.inbox-tab.is-active { background: var(--th-surface-muted); color: var(--th-text); }
.inbox-drawer-toolbar { justify-content: space-between; padding-block: 10px; }

.inbox-filter {
  min-width: 116px;
  height: 32px;
  border: 1px solid var(--th-border);
  border-radius: 8px;
  background: var(--th-bg-2);
  color: var(--th-text-secondary);
  padding: 0 9px;
  font-size: 12px;
}

.inbox-read-all {
  min-height: 32px;
  padding: 0 10px;
  border-radius: 8px;
  color: var(--th-info);
  font-size: 12px;
  font-weight: 600;
}

.inbox-read-all:hover,
.inbox-read-all:focus-visible { background: color-mix(in srgb, var(--th-info) 10%, transparent); outline: none; }

.inbox-content { min-height: 0; flex: 1; overflow-y: auto; }
.inbox-list { margin: 0; padding: 0; list-style: none; }
.inbox-load-more-wrap { padding: 10px 16px; border-top: 1px solid var(--th-border); }
.inbox-load-more {
  width: 100%;
  min-height: 34px;
  border: 1px solid var(--th-border);
  border-radius: 8px;
  background: var(--th-surface-subtle);
  color: var(--th-text-secondary);
  font-size: 11px;
  font-weight: 650;
}
.inbox-load-more:hover:not(:disabled),
.inbox-load-more:focus-visible { border-color: var(--th-border-top); background: var(--th-surface-muted); color: var(--th-text); outline: none; }
.inbox-load-more:disabled { opacity: .5; cursor: wait; }

.inbox-row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 11px;
  padding: 15px 16px;
  border-bottom: 1px solid var(--th-border);
  background: transparent;
}

.inbox-row.is-unread { background: color-mix(in srgb, var(--th-accent) 6%, transparent); }
.inbox-row-icon {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--th-surface-muted);
  color: var(--th-info);
}
.inbox-row-icon[data-severity="success"] { color: var(--th-success); }
.inbox-row-icon[data-severity="warning"] { color: var(--th-warning); }
.inbox-row-icon[data-severity="error"] { color: var(--th-danger); }
.inbox-row-icon svg { width: 16px; height: 16px; }
.inbox-row-main { min-width: 0; }
.inbox-row-head { display: flex; align-items: flex-start; gap: 8px; }
.inbox-row-title { min-width: 0; flex: 1; color: var(--th-text); font-size: 13px; font-weight: 650; line-height: 1.45; }
.inbox-row-time { flex: 0 0 auto; color: var(--th-text-muted); font-size: 10px; line-height: 1.5; }
.inbox-row-copy { margin: 5px 0 0; color: var(--th-text-secondary); font-size: 12px; line-height: 1.65; overflow-wrap: anywhere; }
.inbox-row-actions { display: flex; justify-content: flex-end; margin-top: 7px; }
.inbox-row-action { color: var(--th-info); font-size: 11px; font-weight: 600; }

.inbox-state {
  display: grid;
  min-height: 280px;
  place-content: center;
  gap: 8px;
  padding: 32px;
  color: var(--th-text-muted);
  text-align: center;
}
.inbox-state svg { width: 24px; height: 24px; margin: 0 auto; }
.inbox-state strong { color: var(--th-text-secondary); font-size: 13px; }
.inbox-state span { max-width: 34ch; font-size: 12px; line-height: 1.6; }

.messaging-admin-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 20px; }
.messaging-admin-panel { min-width: 0; }
.messaging-admin-panel + .messaging-admin-panel { border-left: 1px solid var(--th-border); padding-left: 20px; }
.messaging-panel-title { color: var(--th-text); font-size: 13px; font-weight: 700; }
.messaging-panel-copy { margin-top: 3px; color: var(--th-text-muted); font-size: 11px; line-height: 1.55; }
.messaging-form { display: grid; gap: 10px; margin-top: 14px; }
.messaging-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.messaging-field { display: grid; gap: 5px; color: var(--th-text-secondary); font-size: 11px; }
.messaging-field input,
.messaging-field textarea,
.messaging-field select {
  width: 100%;
  border: 1px solid var(--th-border);
  border-radius: 8px;
  background: var(--th-surface-subtle);
  color: var(--th-text);
  padding: 9px 10px;
  font: 12px/1.45 Inter, system-ui, sans-serif;
  outline: none;
}
.messaging-field textarea { min-height: 88px; resize: vertical; }
.messaging-field input:focus,
.messaging-field textarea:focus,
.messaging-field select:focus { border-color: var(--th-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--th-accent) 13%, transparent); }
.messaging-checkbox { display: inline-flex; align-items: center; gap: 7px; color: var(--th-text-secondary); font-size: 11px; }
.messaging-form-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.messaging-button { min-height: 32px; padding: 0 11px; border: 1px solid var(--th-border); border-radius: 8px; background: var(--th-surface-subtle); color: var(--th-text-secondary); font-size: 11px; font-weight: 650; }
.messaging-button.primary { border-color: var(--th-accent); background: var(--th-accent); color: color-mix(in srgb, var(--th-bg) 92%, #000); }
.messaging-button.danger { color: var(--th-danger); }
.messaging-button:hover:not(:disabled) { background: var(--th-surface-muted); color: var(--th-text); }
.messaging-button.primary:hover:not(:disabled) { background: color-mix(in srgb, var(--th-accent) 84%, var(--th-text)); }
.messaging-button:disabled { opacity: .45; cursor: not-allowed; }
.admin-announcement-list { margin-top: 16px; border-top: 1px solid var(--th-border); }
.admin-announcement-row { padding: 12px 0; border-bottom: 1px solid var(--th-border); }
.admin-announcement-head { display: flex; align-items: flex-start; gap: 8px; }
.admin-announcement-head strong { min-width: 0; flex: 1; color: var(--th-text); font-size: 12px; }
.admin-announcement-meta { margin-top: 4px; color: var(--th-text-muted); font-size: 10px; }
.admin-announcement-actions { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.announcement-status { flex: 0 0 auto; padding: 2px 6px; border: 1px solid var(--th-border); border-radius: 6px; color: var(--th-text-muted); font-size: 9px; }
.announcement-status[data-status="published"] { border-color: color-mix(in srgb, var(--th-success) 38%, transparent); color: var(--th-success); }
.announcement-status[data-status="retracted"] { color: var(--th-warning); }

@media (max-width: 860px) {
  .messaging-admin-grid { grid-template-columns: 1fr; }
  .messaging-admin-panel + .messaging-admin-panel { border-top: 1px solid var(--th-border); border-left: 0; padding-top: 20px; padding-left: 0; }
}

@media (max-width: 640px) {
  .inbox-layer { background: var(--th-overlay); }
  .inbox-drawer {
    top: auto;
    bottom: 0;
    width: 100%;
    height: min(86dvh, 720px);
    border-top: 1px solid var(--th-border-top);
    border-left: 0;
    border-radius: 8px 8px 0 0;
    box-shadow: 0 -20px 50px color-mix(in srgb, var(--th-bg) 70%, transparent);
    transform: translateY(100%);
  }
  .inbox-layer.is-open .inbox-drawer { transform: translateY(0); }
  .inbox-drawer-header { padding-top: 18px; }
  .inbox-drawer-header::before { content: ''; position: absolute; top: 7px; left: 50%; width: 34px; height: 3px; border-radius: 2px; background: var(--th-border-top); transform: translateX(-50%); }
  .messaging-form-row { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .inbox-layer,
  .inbox-drawer,
  .inbox-trigger { transition: none; }
}