* { box-sizing: border-box; }
body { font-family: system-ui, sans-serif; margin: 0; color: #1a1a1a; }
header { display: flex; flex-wrap: wrap; gap: .6rem 1.25rem; align-items: center;
  padding: .55rem 1rem; border-bottom: 1px solid #ddd; background: #fafafa; }
header h1 { font-size: 1rem; margin: 0; margin-right: auto; }
.field { display: flex; gap: .35rem; align-items: center; font-size: .85rem; }
input, button, select, textarea { font: inherit; }
input, select, textarea { padding: .3rem .4rem; border: 1px solid #ccc; border-radius: 4px; }
button { padding: .3rem .6rem; border: 1px solid #ccc; border-radius: 4px; background: #fff; cursor: pointer; }
button:hover { background: #f0f0f0; }
.dot { width: .7rem; height: .7rem; border-radius: 50%; display: inline-block; }
.dot.ok { background: #2ecc71; } .dot.err { background: #e74c3c; }
.layout { display: flex; min-height: calc(100vh - 52px); }
nav.side { width: 9rem; flex: 0 0 auto; border-right: 1px solid #ddd; padding: .5rem; }
nav.side a { display: block; padding: .4rem .5rem; border-radius: 4px; color: #1a1a1a;
  text-decoration: none; font-size: .9rem; }
nav.side a.active { background: #1a1a1a; color: #fff; }
main#view { flex: 1; padding: 1rem; overflow: auto; }
h2 { font-size: 1.05rem; margin: .2rem 0 .6rem; }
.two { display: flex; gap: 1rem; }
.two .list { width: 17rem; flex: 0 0 auto; border-right: 1px solid #eee; padding-right: 1rem; }
.two .detail { flex: 1; min-width: 0; }
.row { display: flex; gap: .5rem; align-items: center; margin: .4rem 0; flex-wrap: wrap; }
.muted { color: #888; font-size: .8rem; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { text-align: left; padding: .35rem .5rem; border-bottom: 1px solid #eee; }
.item { padding: .5rem; border: 1px solid #eee; border-radius: 6px; margin-bottom: .4rem; cursor: pointer; }
.item:hover { background: #f7f7f7; } .item.sel { border-color: #1a1a1a; }
.badge { background: #e74c3c; color: #fff; border-radius: 10px; padding: 0 .4rem; font-size: .75rem; margin-left: .4rem; }
.bubbles { display: flex; flex-direction: column; gap: .4rem; max-height: 55vh; overflow: auto;
  padding: .5rem; border: 1px solid #eee; border-radius: 6px; }
.bubble { padding: .4rem .6rem; border-radius: 8px; background: #f1f1f1; }
.bubble .who { font-size: .72rem; color: #555; margin-bottom: .15rem; }
.bubble.unread { box-shadow: 0 0 0 2px #ffd866 inset; }
form.compose { margin-top: .6rem; display: flex; flex-direction: column; gap: .4rem; max-width: 36rem; }
textarea { min-height: 3rem; resize: vertical; }