/* Messages (pages/messages.js): one box of three columns as the owner's mock has it: the clients' threads, the open
   client's channels and CSM, and the open channel with its form at the foot. Each column scrolls in itself. */
.page[data-page="messages"] { max-width: 1340px; padding: 24px 28px 24px; }
.messages-box { display: grid; grid-template-columns: 260px 200px minmax(0, 1fr); height: calc(100dvh - 176px); min-height: 440px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--raise); }
.messages-box > * { min-width: 0; min-height: 0; overflow: auto; border-right: 1px solid var(--line); }
.messages-box > :last-child { border-right: 0; }

.messages-threads a { display: block; padding: 11px 14px; border-bottom: 1px solid var(--line); color: inherit; text-decoration: none; transition: background var(--t-fast); }
.messages-threads a:hover, .messages-threads a[aria-current] { background: var(--chip); }
.messages-threads b { display: block; font-size: 13px; color: var(--head); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.messages-threads small { display: block; color: var(--text3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.messages-side { padding: 10px 8px; }
.messages-side .l { font-size: 11px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--faint); padding: 14px 4px 6px; }
.messages-side .l + .l, .messages-side .csm { margin-top: 0; }
.messages-side button { display: flex; align-items: center; gap: 7px; width: 100%; padding: 7px 12px; margin: 2px 0; border-radius: 7px; color: var(--text3); font-weight: 500; text-align: left; transition: background var(--t-fast), color var(--t-fast); }
.messages-side button:hover { color: var(--text); background: var(--hover); }
.messages-side button[aria-pressed="true"] { background: var(--sel); color: var(--text); }
.messages-side button svg { width: 14px; height: 14px; color: var(--warn); }
.messages-side button small { margin-left: auto; font-size: 11px; color: var(--faint); white-space: nowrap; }
.messages-side button { flex-wrap: wrap; } .messages-side button span { white-space: nowrap; } .messages-side button small.under { flex-basis: 100%; margin: -4px 0 0; }
.messages-side .csm { display: flex; align-items: center; gap: 8px; padding: 0 4px; }

.messages-chat { display: flex; flex-direction: column; overflow: hidden; }
.messages-chat h3 { display: flex; align-items: center; gap: 9px; margin: 0; padding: 13px 16px; border-bottom: 1px solid var(--line); font-size: 14px; font-weight: 700; color: var(--head); }
.messages-chat h3 span { margin-left: auto; font-weight: 500; color: var(--text3); font-size: 12px; }
.messages-log { flex: 1; min-height: 0; overflow: auto; padding: 18px; display: flex; flex-direction: column; gap: 14px; }
.messages-note { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 10px; }
.messages-note b { font-size: 13px; color: var(--head); } .messages-note time { font: 11px var(--mono); color: var(--faint); margin-left: 6px; }
.messages-note p { margin: 2px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; max-width: 78ch; }
.messages-none { margin: auto; max-width: 46ch; text-align: center; color: var(--text3); display: grid; gap: 4px; justify-items: center; }
.messages-none b { color: var(--head); } .messages-none svg { width: 20px; height: 20px; margin-bottom: 4px; }
.messages-form { border-top: 1px solid var(--line); padding: 12px; display: flex; gap: 8px; }
.messages-form input { flex: 1; min-width: 0; height: 36px; border: 1px solid var(--line2); background: var(--panel); border-radius: 8px; padding: 0 10px; outline: 0; }
.messages-form input:focus-visible { border-color: var(--red); } .messages-form input:disabled { opacity: .55; }
.messages-form .btn { height: 36px; width: 40px; padding: 0; justify-content: center; }

@media (max-width: 1100px) { .messages-box { grid-template-columns: 200px 170px minmax(0, 1fr); } }
@media (max-width: 760px) {
  .page[data-page="messages"] { padding: 20px 16px 24px; }
  .messages-box { grid-template-columns: 1fr; height: auto; overflow: visible; }
  .messages-box > * { border-right: 0; border-bottom: 1px solid var(--line); }
  .messages-threads { max-height: 190px; } .messages-side { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; }
  .messages-side .l { flex-basis: 100%; padding: 6px 4px 0; } .messages-side button { width: 100%; margin: 0; }
  .messages-chat { height: 62dvh; min-height: 380px; }
}