/* messages — page styles. Tokens and shared components only (see docs/DESIGN.md). */
@layer pages {
  /* ── Direct messages: the compose window and the inbox (#/inbox, #/inbox/sent) ── */

  /* Compose: a standard dialog, a little wider for writing. */
  .compose { width: min(560px, 100%); display: flex; flex-direction: column; gap: var(--sp-4); }
  .compose-head { padding-right: var(--sp-10); }
  .compose-head h2 { margin: 2px 0 0; }
  .compose .field textarea { min-height: 180px; }
  .compose-actions { align-items: center; margin-top: var(--sp-2); }
  .compose-count { margin-right: auto; font-size: var(--fs-xs); color: var(--text-3); }
  .compose-count.over { color: var(--red-text); font-weight: var(--fw-semibold); }

  /* Recipients: tags in a field that looks like a text input, with suggestions under it. */
  .tag-field { position: relative; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; min-height: var(--h-md); padding: 4px 6px; cursor: text;
    border-radius: var(--r-md); border: 1px solid var(--input-border); background: var(--input-bg); box-shadow: var(--input-shadow);
    transition: border-color var(--t-fast), box-shadow var(--t-fast); }
  .tag-field:hover { border-color: var(--input-border-hover); }
  .tag-field:focus-within { border-color: var(--focus); box-shadow: var(--input-shadow), var(--focus-ring); }
  .tag-field input[type="text"] { flex: 1; min-width: 140px; min-height: 30px; padding: 0 6px; border: 0; background: transparent; box-shadow: none; }
  .tag-field input[type="text"]:focus { box-shadow: none; }
  .tag { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 2px 0 var(--sp-2); border-radius: var(--r-pill);
    font: var(--fw-semibold) var(--fs-sm) / 1 var(--font-ui); color: var(--text); background: var(--surface-3); border: 1px solid var(--border); animation: pop .25s var(--ease); }
  .tag .flag { width: 18px; height: 12px; vertical-align: baseline; }
  .tag button { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; color: var(--text-3); transition: background-color var(--t-fast), color var(--t-fast); }
  .tag button:hover { color: var(--text); background: var(--surface-3); }
  .suggest { display: none; position: absolute; left: 0; right: 0; top: calc(100% + 6px); z-index: var(--z-dropdown); list-style: none; margin: 0; max-height: 264px; overflow-y: auto; }
  .suggest.open { display: block; animation: menu-in var(--t-base) var(--ease); }
  .suggest .menu-item { cursor: pointer; }
  .suggest .flag { width: 20px; height: 14px; vertical-align: baseline; }

  /* Inbox: the list on the left, the reader on the right. */
  .mail { display: grid; grid-template-columns: minmax(300px, 400px) minmax(0, 1fr); gap: var(--gap); align-items: start; }
  .mail-list { overflow: hidden; }
  .mail-tools { display: flex; align-items: center; gap: var(--sp-2); min-height: 56px; padding: var(--sp-2) var(--sp-3) var(--sp-2) var(--sp-4); border-bottom: 1px solid var(--border-subtle); }
  .mail-picked { margin-right: auto; font-size: var(--fs-xs); color: var(--text-3); font-variant-numeric: tabular-nums; white-space: nowrap; }
  .mail-check { display: grid; place-items: center; width: 40px; min-height: 40px; margin: 0 -8px; flex: none; cursor: pointer; }
  .mail-rows { list-style: none; margin: 0; padding: 0; max-height: calc(100vh - 340px); min-height: 200px; overflow-y: auto; }
  .mail-row { position: relative; display: flex; align-items: flex-start; gap: var(--sp-2); padding: 0 var(--sp-3) 0 var(--sp-4); border-bottom: 1px solid var(--border-subtle); transition: background-color var(--t-fast); }
  .mail-row:last-child { border-bottom: 0; }
  .mail-row .mail-check { margin-top: 6px; }
  .mail-row:hover { background: var(--surface-2); }
  .mail-row.open { background: var(--surface-3); box-shadow: inset 3px 0 0 var(--brand); }
  .mail-open { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; padding: var(--sp-3) var(--sp-1); text-align: left; color: inherit; border-radius: var(--r-sm); }
  .mail-open:focus-visible { outline-offset: -2px; }
  .mail-who { display: flex; align-items: center; gap: var(--sp-2); min-width: 0; font-size: var(--fs-ui); }
  .mail-who .flag { width: 20px; height: 14px; flex: none; vertical-align: baseline; }
  .mail-who b { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: var(--fw-medium); color: var(--text-2); }
  .mail-who .dot { flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 2px var(--brand-soft); }
  .mail-who time { margin-left: auto; flex: none; font-size: var(--fs-xs); color: var(--text-3); }
  .mail-subject { font-size: var(--fs-ui); color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .mail-excerpt { font-size: var(--fs-sm); color: var(--text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .mail-row.unread .mail-who b, .mail-row.unread .mail-subject { font-weight: var(--fw-semibold); color: var(--text); }
  .mail-more { padding: var(--sp-2); border-top: 1px solid var(--border-subtle); }
  .mail-skeleton { display: flex; flex-direction: column; }
  .mail-skeleton > div { display: flex; flex-direction: column; gap: var(--sp-2); padding: var(--sp-4); border-bottom: 1px solid var(--border-subtle); }
  .mail-none { padding: var(--sp-10) var(--sp-5); }

  .mail-reader { min-height: 420px; }
  .mail-empty { min-height: 420px; justify-content: center; }
  .mail-letter { display: flex; flex-direction: column; gap: var(--sp-5); padding: var(--sp-6); }
  @media (min-width: 900px) { .mail-letter { padding: var(--sp-8); } }
  .mail-letter-head { display: flex; flex-direction: column; gap: var(--sp-3); padding-bottom: var(--sp-5); border-bottom: 1px solid var(--border-subtle); }
  .mail-letter-head h2 { overflow-wrap: anywhere; }
  .mail-meta { display: flex; align-items: center; gap: var(--sp-2); }
  .mail-meta .flag { width: 22px; height: 15px; vertical-align: baseline; }
  .mail-meta time { margin-left: auto; font-size: var(--fs-sm); color: var(--text-3); }
  .mail-to { display: flex; align-items: baseline; gap: var(--sp-2); font-size: var(--fs-sm); color: var(--text-2); overflow-wrap: anywhere; }
  .mail-body { white-space: pre-wrap; overflow-wrap: anywhere; }
  .mail-actions { display: flex; flex-wrap: wrap; gap: var(--sp-2); padding-top: var(--sp-5); border-top: 1px solid var(--border-subtle); }
  .mail-delete { margin-left: auto; }
  .mail-back { display: none; align-self: flex-start; margin: calc(-1 * var(--sp-2)) 0 calc(-1 * var(--sp-2)) calc(-1 * var(--sp-2)); }

  @media (max-width: 860px) {
    .mail { grid-template-columns: minmax(0, 1fr); }
    /* Phones and tablets: one pane at a time. */
    .inbox-page.reading .mail-list, .inbox-page:not(.reading) .mail-reader { display: none; }
    .mail-back { display: inline-flex; }
    .mail-rows { max-height: none; }
    .mail-reader, .mail-empty { min-height: 0; }
  }
  @media (max-width: 560px) {
    .inbox-page .page-head > .btn { width: 100%; }
    .mail-letter { padding: var(--sp-5); }
    .mail-actions .btn { flex: 1 1 auto; }
    .mail-delete { margin-left: 0; }
    .compose-actions { flex-wrap: wrap; }
    .compose-count { flex-basis: 100%; }
    .compose-actions .btn { flex: 1; }
    /* Small in-row buttons keep a 40px touch target. */
    .inbox-page .btn.sm::before { content: ""; position: absolute; inset: -4px 0; }
    .mail-tools { justify-content: flex-end; }
    .mail-tools .mail-check { margin-right: auto; }
    .mail-picked { display: none; }
  }
  @media (prefers-reduced-motion: reduce) {
    .tag { animation: none; }
  }
}