:root {
  --bg: #f6f5f2; --card: #fff; --text: #1f2328; --muted: #6b7280; --line: #e4e2dd;
  --brand: #1f5f4a; --brand-soft: #e3efe9; --warn: #9a5b00; --warn-soft: #fff4dc;
  --err: #b42318; --err-soft: #fdecea; --guest: #fff; --ai: #e3efe9; --staff: #e6edf8;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--brand); }
h1 { font-size: 1.4rem; margin: 0 0 .6rem; } h2 { font-size: 1.05rem; margin: 0 0 .6rem; }
.muted { color: var(--muted); } .small { font-size: .85rem; } .empty { color: var(--muted); padding: 2rem 0; text-align: center; }
.top { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; background: var(--brand); color: #fff; padding: .6rem 1rem; }
.top a { color: #fff; text-decoration: none; }
.brand { font-weight: 700; } .brand span { font-weight: 400; opacity: .8; }
.top nav { display: flex; gap: 1rem; flex-wrap: wrap; flex: 1; }
.me { display: flex; gap: .8rem; align-items: center; }
.pill { background: #fff; color: var(--brand); border-radius: 99px; padding: 0 .45rem; font-size: .8rem; }
.page { max-width: 1000px; margin: 0 auto; padding: 1.2rem 16px; } .page.wide { max-width: 1300px; }
.login { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1rem; margin-bottom: 1rem; }
.narrow { max-width: 440px; width: 100%; }
label { display: block; margin-bottom: .9rem; font-weight: 600; }
label .muted { font-weight: 400; display: block; }
label.check { display: flex; gap: .5rem; align-items: baseline; }
input, textarea, select { width: 100%; font: inherit; padding: .5rem .6rem; border: 1px solid var(--line); border-radius: 8px; margin-top: .25rem; background: #fff; }
input[type=checkbox] { width: auto; }
textarea { resize: vertical; font-weight: 400; }
button { font: inherit; padding: .45rem .9rem; border-radius: 8px; border: 1px solid var(--line); background: #fff; cursor: pointer; }
button.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
button.link { background: none; border: 0; color: #fff; text-decoration: underline; padding: 0; }
form.inline { display: inline; } .row { display: flex; gap: .4rem; align-items: center; } .row input { margin: 0; }
.head-row { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.flash { padding: .6rem .8rem; border-radius: 8px; margin-bottom: .8rem; background: var(--brand-soft); }
.flash.error { background: var(--err-soft); color: var(--err); }
.flash.warn, .warn { background: var(--warn-soft); color: var(--warn); }
p.warn { padding: .4rem .6rem; border-radius: 6px; }
.error { color: var(--err); }
.tabs { display: flex; gap: .3rem; flex-wrap: wrap; margin-bottom: 1rem; }
.tabs a { padding: .4rem .8rem; border-radius: 99px; text-decoration: none; color: var(--text); border: 1px solid var(--line); background: #fff; }
.tabs a.active { background: var(--brand); color: #fff; border-color: var(--brand); }
.convlist { list-style: none; margin: 0; padding: 0; }
.convlist a { display: block; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: .7rem .9rem; margin-bottom: .5rem; color: var(--text); text-decoration: none; }
.convlist a.attention { border-left: 4px solid var(--warn); }
.row1 { display: flex; gap: .6rem; align-items: center; } .row1 time { margin-left: auto; color: var(--muted); font-size: .8rem; }
.reason { color: var(--warn); font-size: .9rem; } .snippet { color: var(--muted); font-size: .92rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.badge { font-size: .75rem; padding: .05rem .5rem; border-radius: 99px; background: var(--ai); color: var(--brand); white-space: nowrap; }
.badge.staff { background: var(--staff); color: #1d4ed8; }
.conv { display: grid; grid-template-columns: 1fr 320px; gap: 1rem; align-items: start; }
.chat { background: #fff; border: 1px solid var(--line); border-radius: 10px; display: flex; flex-direction: column; height: calc(100vh - 110px); min-height: 480px; }
.chat-head { display: flex; gap: .8rem; align-items: center; padding: .7rem 1rem; border-bottom: 1px solid var(--line); }
.chat-head h1 { margin: 0; font-size: 1.15rem; } .chat-head .badge { margin-left: auto; } .back { text-decoration: none; font-size: 1.2rem; }
.chat > .flash { margin: .6rem 1rem 0; display: flex; gap: .6rem; align-items: center; justify-content: space-between; }
.thread { flex: 1; overflow-y: auto; padding: 1rem; background: var(--bg); }
.msg { max-width: 75%; margin-bottom: .6rem; padding: .5rem .7rem; border-radius: 10px; border: 1px solid var(--line); }
.msg.in { background: var(--guest); } .msg.out { margin-left: auto; background: var(--ai); }
.msg.staff, .msg.whatsapp_app { background: var(--staff); }
.msg .who { font-size: .75rem; color: var(--muted); display: flex; gap: .4rem; flex-wrap: wrap; }
.msg .body { white-space: pre-wrap; word-wrap: break-word; }
.status { text-transform: uppercase; font-size: .65rem; } .status.failed { color: var(--err); font-weight: 700; }
.note { text-align: center; font-size: .8rem; color: var(--muted); margin: .5rem 0; } .note time { opacity: .7; }
.composer { border-top: 1px solid var(--line); padding: .7rem 1rem; display: flex; flex-wrap: wrap; gap: .5rem; align-items: flex-end; }
.composer textarea { flex: 1; margin: 0; min-width: 200px; } .composer p { width: 100%; margin: 0; }
dl { display: grid; grid-template-columns: auto 1fr; gap: .2rem .7rem; margin: 0 0 .8rem; font-size: .9rem; }
dt { color: var(--muted); } dd { margin: 0; word-break: break-word; }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 10px; font-size: .92rem; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #faf9f7; font-weight: 600; }
tr.cancelled td { color: var(--muted); text-decoration: line-through; }
td.actions { display: flex; gap: .4rem; flex-wrap: wrap; } td.actions input { width: 150px; }
.scroll { overflow-x: auto; }
@media (max-width: 800px) {
  .conv { grid-template-columns: 1fr; }
  .chat { height: 75vh; }
  .msg { max-width: 90%; }
  .top nav { order: 3; width: 100%; }
}