* { box-sizing: border-box; }
body { margin: 0; background: #14161a; color: #e6e6e6; font: 16px/1.5 system-ui, sans-serif; }
main { max-width: 640px; margin: 0 auto; padding: 24px 16px; }
h1, h2 { font-weight: 600; }
a { color: #8ab4f8; }
label { display: block; margin: 12px 0 4px; }
input, textarea, select { width: 100%; padding: 10px; background: #1f2229; color: inherit; border: 1px solid #3a3f4a; border-radius: 6px; font: inherit; }
textarea { min-height: 120px; resize: vertical; }
button, .btn { display: inline-block; margin-top: 12px; padding: 10px 18px; background: #3b6fd4; color: #fff; border: 0; border-radius: 6px; font: inherit; cursor: pointer; text-decoration: none; }
button.danger { background: #a33; }
button.small { margin: 0; padding: 4px 10px; font-size: 14px; }
.error { background: #4a1f1f; padding: 10px; border-radius: 6px; margin: 12px 0; }
.ok { background: #1f4a2a; padding: 10px; border-radius: 6px; margin: 12px 0; }
.muted { color: #8a8f99; font-size: 14px; }
table { width: 100%; border-collapse: collapse; margin: 12px 0; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid #2a2e36; vertical-align: middle; }
code { background: #1f2229; padding: 2px 6px; border-radius: 4px; }
.tabs a { margin-right: 12px; }
.tabs a.cur { font-weight: bold; color: #fff; }
.inline { display: inline; }
.inline-form { display: flex; gap: 8px; align-items: end; }
.inline-form input { width: 90px; }
.inline-form button { margin-top: 0; }

#chat { display: flex; flex-direction: column; height: calc(100vh - 140px); min-height: 300px; }
#msgs { flex: 1; overflow-y: auto; padding: 8px; background: #1a1d22; border-radius: 6px; }
.msg { max-width: 80%; margin: 6px 0; padding: 8px 12px; border-radius: 10px; background: #2a2e36; white-space: pre-wrap; word-wrap: break-word; }
.msg.mine { margin-left: auto; background: #2f4f8f; }
.msg small { display: block; color: #9aa0ab; font-size: 12px; }
#send { display: flex; gap: 8px; margin-top: 8px; }
#send textarea { min-height: 0; height: 52px; }
#send button { margin-top: 0; }