:root {
  --bg: #faf7f5; --card: #fff; --ink: #2a2326; --muted: #6f6468; --line: #e8dfdb;
  --accent: #a14a6a; --accent-ink: #fff; --warn: #b5541c; --warn-bg: #fdeee4; --ok-bg: #e7f4ea;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #1b1719; --card: #252022; --ink: #f1eaec; --muted: #b3a6ab; --line: #3a3235;
          --accent: #d27a9a; --accent-ink: #1b1719; --warn: #f0a070; --warn-bg: #3a2a20; --ok-bg: #20352a; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--ink); }
main { max-width: 1100px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: .5rem 0 1rem; } h2 { font-size: 1.15rem; margin: 0 0 .75rem; } h3 { font-size: 1rem; }
a { color: var(--accent); }
.top { display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; align-items: center;
       padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; }
.status { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.tabs { display: flex; gap: 4px; overflow-x: auto; padding: 0 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.tabs a { padding: 10px 12px; text-decoration: none; color: var(--muted); border-bottom: 3px solid transparent; white-space: nowrap; }
.tabs a.active { color: var(--ink); border-color: var(--accent); font-weight: 600; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.narrow { max-width: 380px; margin: 10vh auto; }
label { display: block; margin-bottom: 10px; font-size: .92rem; color: var(--muted); }
label.check { display: inline-flex; gap: 6px; align-items: center; margin-right: 12px; color: var(--ink); }
input, textarea, select { width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg); color: var(--ink); font: inherit; margin-top: 4px; }
input[type=checkbox] { width: auto; margin: 0; }
input.short { width: 7rem; }
button { font: inherit; cursor: pointer; border-radius: 8px; padding: 8px 14px; border: 1px solid transparent; }
.btn { background: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-warn { background: var(--warn); color: #fff; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.row input, .row select { width: auto; flex: 1 1 140px; margin-top: 0; }
.row label { margin-bottom: 0; }
.inline { display: inline; }
.grid2, .grid3, .grid4 { display: grid; gap: 12px; }
@media (min-width: 700px) {
  .grid2 { grid-template-columns: 1fr 1fr; } .grid3 { grid-template-columns: repeat(3, 1fr); }
  .grid4 { grid-template-columns: repeat(4, 1fr); }
}
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 0 0 12px; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; display: block; overflow-x: auto; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr.attention td { background: var(--warn-bg); }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line); font-size: .8rem; color: var(--muted); }
.pill.warn, .warn { color: var(--warn); border-color: var(--warn); }
.hint { color: var(--muted); font-size: .85rem; }
.strong { font-weight: 700; }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 12px; background: var(--ok-bg); }
.flash.erro { background: var(--warn-bg); color: var(--warn); }
details { border-top: 1px solid var(--line); padding: 8px 0; } summary { cursor: pointer; font-weight: 600; }
.chat { display: flex; flex-direction: column; gap: 8px; min-height: 120px; max-height: 60vh; overflow-y: auto; margin: 12px 0; }
.msg { max-width: 80%; padding: 8px 12px; border-radius: 12px; white-space: pre-wrap; background: var(--bg); border: 1px solid var(--line); }
.msg.cliente { align-self: flex-end; background: var(--ok-bg); }
.msg.humano { border-color: var(--accent); }
.msg.sistema { font-style: italic; }
.msg .who { display: block; font-size: .75rem; color: var(--muted); }
.msg .when { display: block; font-size: .7rem; color: var(--muted); text-align: right; }
pre { white-space: pre-wrap; font-size: .8rem; }
.qa { border-top: 1px solid var(--line); padding-top: 8px; }