* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, system-ui, Segoe UI, Roboto, sans-serif; background: #f6f6f8; color: #1a1a1e; }
.view[hidden] { display: none; }

.login-box { max-width: 320px; margin: 100px auto; display: flex; flex-direction: column; gap: 10px; background: #fff; padding: 28px; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,.08); }
.login-box input { padding: 10px; border: 1px solid #ddd; border-radius: 8px; font-size: 14px; }
.login-box button { padding: 10px; border: none; border-radius: 8px; background: #4338ca; color: #fff; font-size: 14px; cursor: pointer; }
.error { color: #c0392b; font-size: 13px; min-height: 16px; }

#app-view { display: flex; min-height: 100vh; }
.sidebar { width: 180px; background: #1b1b2a; color: #fff; display: flex; flex-direction: column; padding: 16px; gap: 6px; flex-shrink: 0; }
.sidebar .brand { font-weight: 700; margin-bottom: 16px; }
.sidebar a { color: #c7c7e0; text-decoration: none; padding: 8px 10px; border-radius: 6px; }
.sidebar a.active { background: #302f55; color: #fff; }
.sidebar .logout { margin-top: auto; background: transparent; border: 1px solid #555; color: #ccc; padding: 8px; border-radius: 6px; cursor: pointer; }

.main { flex: 1; padding: 24px; overflow-y: auto; }
h2 { margin-top: 0; }

table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid #eee; font-size: 14px; }
th { background: #f0f0f4; font-weight: 600; }
tr.inactive { opacity: .5; }

.btn { background: #4338ca; color: #fff; border: none; padding: 8px 14px; border-radius: 6px; cursor: pointer; font-size: 13px; }
.btn.secondary { background: #e4e4ec; color: #222; }
.btn.danger { background: #c0392b; color: #fff; }
.badge { padding: 2px 8px; border-radius: 10px; font-size: 11px; }
.badge.ok { background: #d4f4dd; color: #15803d; }
.badge.off { background: #f4d4d4; color: #991b1b; }

.editor { display: flex; gap: 20px; }
.editor-form { flex: 1; min-width: 0; }
.editor-preview { width: 400px; flex-shrink: 0; }
.editor-preview iframe { width: 100%; height: 640px; border: 1px solid #ddd; border-radius: 12px; }

.tabs { display: flex; gap: 4px; margin-bottom: 14px; flex-wrap: wrap; }
.tabs button { padding: 8px 12px; border: none; background: #e4e4ec; border-radius: 6px; cursor: pointer; font-size: 13px; }
.tabs button.active { background: #4338ca; color: #fff; }

.field { margin-bottom: 12px; display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 12px; font-weight: 600; color: #555; }
.field input[type=text], .field input[type=number], .field textarea, .field select {
  padding: 8px; border: 1px solid #ddd; border-radius: 6px; font-size: 13px; font-family: inherit;
}
.field.row { flex-direction: row; align-items: center; gap: 8px; }
.hint { font-size: 11px; color: #888; }

.snippet { background: #1b1b1f; color: #eee; padding: 14px; border-radius: 8px; overflow-x: auto; font-size: 12px; margin-bottom: 10px; }

.conv-list { display: flex; gap: 20px; }
.conv-sidebar { width: 280px; flex-shrink: 0; }
.conv-item { padding: 8px; border-radius: 6px; cursor: pointer; font-size: 13px; }
.conv-item:hover { background: #ececf2; }
.conv-thread { flex: 1; background: #fff; border-radius: 8px; padding: 14px; min-height: 300px; }
.msg-row { margin-bottom: 10px; font-size: 13px; }
.msg-row.visitante { font-weight: 600; }
.msg-row .meta { color: #999; font-size: 11px; margin-left: 6px; }