:root { color-scheme: light; --ink: #1b2733; --muted: #55606b; --line: #dfe4e9; --bg: #f4f6f8; --brand: #17324d; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; margin: 0; }
body { font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: var(--bg); }
button, input, select, textarea { font: inherit; }
button { padding: 6px 12px; border: 1px solid #c4ccd4; border-radius: 6px; background: #fff; color: var(--ink); cursor: pointer; }
button[type=submit] { background: var(--brand); border-color: var(--brand); color: #fff; }
input, select, textarea { padding: 6px 8px; border: 1px solid #c4ccd4; border-radius: 6px; background: #fff; color: var(--ink); }
:focus-visible { outline: 2px solid #2f7de1; outline-offset: 1px; }
.error { min-height: 18px; margin: 4px 0; color: #b3261e; }
.save-status { min-height: 18px; margin: 4px 0; color: #245a36; }
.empty { padding: 16px; color: var(--muted); }

.login { display: grid; place-items: center; height: 100%; }
.login form { display: grid; gap: 10px; width: min(340px, calc(100% - 32px)); padding: 24px; border-radius: 10px; background: #fff; border: 1px solid var(--line); }
.login h1 { margin: 0 0 6px; font-size: 20px; }
.login label { display: grid; gap: 4px; }

#app { display: flex; flex-direction: column; height: 100%; }
header { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 8px 14px; background: var(--brand); color: #fff; }
header nav { display: flex; gap: 4px; }
header nav button { background: transparent; border-color: transparent; color: #fff; }
header nav button[aria-current=true] { background: rgba(255,255,255,.18); }
.grow { flex: 1; }

.chats { flex: 1; display: grid; grid-template-columns: 280px 1fr 220px; min-height: 0; }
.chat-list { overflow-y: auto; border-right: 1px solid var(--line); background: #fff; }
.chat { display: block; width: 100%; padding: 10px 12px; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; text-align: left; }
.chat.active { background: #e8eff6; }
.chat-top { display: flex; align-items: center; gap: 8px; }
.site { color: var(--muted); font-size: 12px; }
.badge { margin-left: auto; padding: 0 7px; border-radius: 10px; background: #b3261e; color: #fff; font-size: 12px; }
.preview { display: block; overflow: hidden; color: var(--muted); font-size: 12px; white-space: nowrap; text-overflow: ellipsis; }
.thread-wrap, .thread { display: flex; flex-direction: column; min-height: 0; height: 100%; }
.thread-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: #fff; }
.thread-head h2 { margin: 0; font-size: 16px; }
.thread-head p { margin: 0; color: var(--muted); font-size: 12px; }
.log { flex: 1; overflow-y: auto; padding: 14px; }
.msg { max-width: 70%; margin: 0 0 8px; padding: 8px 10px; border-radius: 10px; background: #fff; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.agent { margin-left: auto; background: var(--brand); color: #fff; }
.msg.system { max-width: 100%; background: transparent; color: var(--muted); font-size: 12px; text-align: center; }
.who { display: block; color: var(--muted); font-size: 11px; }
.msg.agent .who { color: #c9d7e6; }
#reply-form { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--line); background: #fff; }
#reply-form textarea { flex: 1; height: 56px; resize: none; }
.pages { overflow-y: auto; padding: 10px 14px; border-left: 1px solid var(--line); background: #fff; }
.pages h3 { margin: 0 0 8px; font-size: 13px; }
.pages ol { margin: 0; padding-left: 18px; color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }

.page { flex: 1; overflow: auto; padding: 16px; }
.inline { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.inline input { min-width: 200px; flex: 1; }
.inline .error { width: 100%; }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); }
th, td { padding: 7px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; overflow-wrap: anywhere; }
th { color: var(--muted); font-size: 12px; font-weight: 600; }
.card { margin-bottom: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.card h3 { margin: 0 0 4px; font-size: 15px; }
.card p { margin: 0 0 8px; color: var(--muted); }
.card code { display: block; padding: 8px; border-radius: 6px; background: var(--bg); overflow-wrap: anywhere; font: 12px/1.4 ui-monospace, Consolas, monospace; }

.dot { display: inline-block; width: 9px; height: 9px; margin-right: 6px; border-radius: 50%; background: #8a949e; }
.dot.online { background: #1f9d55; }
.dot.idle { background: #d9921a; }
.widgets { display: grid; gap: 8px; margin-top: 10px; }
.widget { display: grid; gap: 4px; }
.announcement-settings { display: grid; gap: 8px; max-width: 640px; }
.setting-field { display: grid; gap: 4px; }
.setting-field input, .setting-field textarea { width: 100%; min-width: 0; }
.setting-field textarea { min-height: 80px; resize: vertical; }
.announcement-settings button { justify-self: start; }

@media (max-width: 820px) {
  .chats { grid-template-columns: 1fr; grid-auto-rows: minmax(0, auto); overflow-y: auto; }
  .chat-list { border-right: 0; max-height: 200px; }
  .pages { display: none; }
}