/* Scoped messaging workspace: only the history and contact list scroll. */
.studio-interface .page-content:has(.messages-studio) { max-width: none; padding: 16px 24px; }
.messages-studio { height: calc(100dvh - 112px); min-height: 480px; display: flex; flex-direction: column; gap: 12px; }
.studio-interface #content .messages-workspace-hero { padding: 12px 18px; margin: 0; flex: 0 0 auto; gap: 12px; }
.studio-interface #content .messages-workspace-hero h2 { font-size: 19px; margin: 0; }
.messages-workspace-hero .teacher-eyebrow, .messages-workspace-hero p { display: none; }
.messages-workspace-hero .teacher-workspace-metrics { gap: 16px; }
.messages-workspace-hero .teacher-workspace-metrics > div { border: 0; padding: 0; min-width: 0; display: flex; align-items: baseline; gap: 6px; }
.messages-workspace-hero .teacher-workspace-metrics strong { font-size: 18px; }
.messages-studio > .notice { margin: 0; padding: 8px 12px; }
.studio-interface .messages-studio .message-shell { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(260px, 29%) minmax(0, 1fr); gap: 0; background: white; }
.messages-studio .thread-list { min-height: 0; max-height: none; border: 0; border-radius: 0; padding: 0; grid-template-rows: auto auto minmax(0,1fr); }
.messages-studio .thread-scroll { min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 8px; }
.messages-studio .thread-filters { display: grid; grid-template-columns: 1fr 1fr; }
.messages-studio #message-thread-search { grid-column: 1 / -1; }
.messages-studio .thread-btn { margin-bottom: 4px; padding: 12px; text-align: start; }
.messages-studio .thread-btn.active { background: #edf4ff; border-color: #a9c6f9; box-shadow: inset 3px 0 #225cd4; }
.messages-studio .thread-time { white-space: nowrap; font-size: 11px; }
.messages-studio .thread-main { min-width: 0; }
.messages-studio .thread-main > small { display: inline-block; padding: 1px 7px; border-radius: 6px; background: #f0f4fa; }
.messages-studio .thread-preview { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 8px; }
.messages-studio .thread-stats { margin-top: 6px; gap: 8px; }
.messages-studio .thread-family { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.message-draft-badge { color: #9b520e; background: #fff4df; border-radius: 5px; padding: 1px 5px; font-size: 11px; }
.studio-interface .messages-studio .chat { min-height: 0; max-height: none; min-width: 0; border: 0; border-inline-start: 1px solid var(--border); border-radius: 0; display: flex; flex-direction: column; overflow: hidden; }
.messages-studio .chat-head { flex-shrink: 0; padding: 12px 16px; }
.messages-studio .chat-head-meta { max-width: 55%; }
.messages-studio .guardian-chips { max-height: 68px; overflow-y: auto; }
.studio-interface .messages-studio .chat-messages { flex: 1; min-height: 80px; max-height: none; overflow-y: auto; overscroll-behavior: contain; padding: 18px; background: #f5f8fc; }
.messages-studio .bubble { max-width: min(80%, 620px); overflow-wrap: anywhere; }
.messages-studio .bubble > div[dir] { white-space: pre-wrap; }
.messages-studio .bubble.teacher { background: #e6efff; color: #183558; border-color: #c8daf7; }
.messages-studio .bubble.parent { background: white; }
.messages-studio .bubble small { display: block; margin-top: 8px; }
.messages-studio .chat-empty-state { min-height: 120px; padding: 20px; }
.messages-studio .chat-form { flex-shrink: 0; border-top: 1px solid var(--border); padding: 10px 16px; gap: 6px; max-height: 52%; overflow-y: auto; }
.messages-studio .chat-form .form-group { margin: 0; gap: 3px; }
.messages-studio .chat-form-top { display: block; }
.messages-studio .chat-form-top .form-group { display: flex; align-items: center; gap: 10px; }
.messages-studio .chat-form-top label { flex-shrink: 0; }
.messages-studio .chat-form-top select { flex: 1; min-width: 0; max-width: 520px; }
.messages-studio .chat-form-top .muted { display: none; }
.messages-studio .chat-form textarea { min-height: 56px; max-height: 120px; resize: vertical; }
.messages-studio .message-draft-note { color: #657890; font-size: 11px; }
.messages-studio .message-attachment-strip > span:has(img) { grid-template-columns: 42px minmax(0, 1fr) auto; }
.messages-studio .message-attachment-strip img { width: 42px; height: 42px; object-fit: cover; border-radius: 6px; grid-column: 1; grid-row: 1 / 3; }
.messages-studio .message-attachment-strip > span:has(img) button { grid-column: 3; }
.messages-studio .message-send-feedback:empty, .messages-studio .message-attachment-strip:empty { display: none; }
.messages-studio .message-send-feedback { color: #9a3d26; font-size: 12px; }
.messages-studio button:focus-visible { outline: 3px solid #80aaff; outline-offset: 2px; }
@media (max-width: 1000px) {
  .messages-workspace-hero .teacher-workspace-metrics > div:last-child { display: none; }
  .messages-studio .chat-head-meta { max-width: 45%; }
  .messages-studio .guardian-chips small { display: none; }
}
@media (max-width: 760px) {
  .studio-interface .page-content:has(.messages-studio) { padding: 8px; }
  .messages-studio { height: calc(100dvh - 88px); min-height: 420px; gap: 8px; }
  .studio-interface #content .messages-workspace-hero { padding: 8px 12px; }
  .messages-workspace-hero .teacher-workspace-metrics { display: none; }
  .studio-interface .messages-studio .message-shell { display: flex; }
  .messages-studio .thread-list, .messages-studio .chat { width: 100%; }
  .studio-interface .messages-studio .message-shell:not(.studio-conversation-open) .chat { display: none; }
  .studio-interface .messages-studio .message-shell.studio-conversation-open .thread-list { display: none; }
  .messages-studio .studio-chat-back { margin: 6px 12px; }
  .messages-studio .chat-head { flex-direction: row; padding: 8px 12px; }
  .messages-studio .chat-head-meta { max-width: 45%; }
  .messages-studio .chat-head-meta > span, .messages-studio .guardian-chips { display: none; }
  .messages-studio .chat-send-actions { flex-direction: row; align-items: center; }
  .messages-studio .chat-send-actions small { display: none; }
  .messages-studio .bubble { max-width: 90%; }
  .messages-studio .message-draft-note { display: none; }
}