:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel2: #1f232c;
  --line: #2a2f3a;
  --text: #e6e8ec;
  --muted: #8b93a1;
  --accent: #5b8cff;
  --accent2: #3a6dff;
  --ok: #2ecc71;
  --warn: #e0a526;
  --err: #ff6b6b;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--err); }

button {
  background: var(--accent2);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 9px 14px;
  cursor: pointer;
  font-weight: 600;
}
button:hover { background: var(--accent); }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); }
button.ghost:hover { color: var(--text); }
button.small { padding: 4px 8px; }

input, textarea, select {
  background: var(--panel2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 10px;
  font: inherit;
  width: 100%;
}
input:focus, textarea:focus, select:focus { outline: 1px solid var(--accent); }
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: 8px; }
label.check input { width: auto; }

/* Login */
.login { height: 100%; display: grid; place-items: center; }
.login-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-card h1 { margin: 0; font-size: 22px; }
.login-card p { margin: 0; }

/* App shell */
.app { height: 100%; display: flex; flex-direction: column; }
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.topbar .spacer { flex: 1; }
.tabs { display: flex; gap: 4px; }
.tabs button { background: transparent; color: var(--muted); padding: 7px 12px; }
.tabs button.active { background: var(--panel2); color: var(--text); }

.tab { flex: 1; overflow: hidden; }
.two-col { display: grid; grid-template-columns: 320px 1fr; }

/* Lista de conversas */
.list { border-right: 1px solid var(--line); display: flex; flex-direction: column; min-height: 0; }
.list-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px; border-bottom: 1px solid var(--line); color: var(--muted);
}
#conversa-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; }
#conversa-list li {
  padding: 12px 14px; border-bottom: 1px solid var(--line); cursor: pointer;
}
#conversa-list li:hover { background: var(--panel); }
#conversa-list li.active { background: var(--panel2); }
.conv-name { font-weight: 600; display: flex; justify-content: space-between; gap: 8px; }
.conv-last { color: var(--muted); font-size: 12px; margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); display: inline-block; }

/* Thread */
.thread { display: flex; flex-direction: column; min-height: 0; }
.empty { display: grid; place-items: center; height: 100%; color: var(--muted); }
#thread-view { display: flex; flex-direction: column; height: 100%; }
.thread-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.badge { font-size: 11px; padding: 3px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.badge.open { color: var(--ok); border-color: var(--ok); }
.badge.closed { color: var(--warn); border-color: var(--warn); }
.messages { list-style: none; margin: 0; padding: 16px; overflow-y: auto; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.msg { max-width: 70%; padding: 8px 12px; border-radius: 12px; }
.msg .meta { font-size: 10px; color: var(--muted); margin-top: 4px; }
.msg.in { background: var(--panel2); align-self: flex-start; border-top-left-radius: 3px; }
.msg.out { background: var(--accent2); align-self: flex-end; border-top-right-radius: 3px; }
.msg.out.failed { background: #5a2a2a; }
.send { display: flex; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--line); }
.send input { flex: 1; }
.thread .muted { padding: 0 16px 12px; }

/* Automações */
#tab-automacoes { display: grid; grid-template-columns: 360px 1fr; gap: 16px; padding: 16px; overflow-y: auto; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.panel h2 { margin: 0 0 12px; font-size: 15px; }
.form-grid { display: flex; flex-direction: column; gap: 12px; }
.cards { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.cards li { background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.cards .card-head { display: flex; justify-content: space-between; align-items: center; }
.tag { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); color: var(--muted); }
.tag.on { color: var(--ok); border-color: var(--ok); }
.tag.off { color: var(--muted); }
.card-actions { display: flex; gap: 8px; margin-top: 10px; }
.form-actions { display: flex; gap: 8px; }
button.danger { color: var(--err); border-color: var(--err); }
button.danger:hover { background: var(--err); color: #fff; }